US3252255A

US3252255A - Sealing means for window casements, doors and the like

Info

Publication number: US3252255A
Application number: US368774A
Authority: US
Inventors: Marpe Theodor
Original assignee: Individual
Current assignee: Individual
Priority date: 1964-05-20
Filing date: 1964-05-20
Publication date: 1966-05-24
Anticipated expiration: 1983-05-24

Description

T. MARPE May 24, 1966 SEALING MEANS FOR WINDOW CASEMENTS, DOORS AND THE LIKE 2 Sheets-Sheet 1 Filed May 20, 1964 Fig.1

INVENTOR 77/1500 0R M041 6 Y Z a T. MARPE 3,252,255

DOORS AND THE LIKE May 24, 1966 SEALING MEANS FOR WINDOW CASEMENTS 2 $heets-Sheet 2 Filed May 20, 1964 Fig.8 29 23 INVENTOR.

77l000 MAR/7E 'CQmv United States Patent 3,252,255 SEALING MEANS FOR WINDOW CASEMENTS,

DUORS AND THE LIKE Theodor Marpe, 46 Horsterstrasse, Essen-Steele, Germany Filed May 20, 1964, Ser. No. 368,774 19 Claims. (Cl. 49-318) window framework, or the like, it is necessary to provide a slight spacing between the movable window casement and the window frame along substantially the entire circumference thereof to insure a free opening of the win-' dow without bending either in the open or closed position. However, in providing free swinging of the window, one must sacrifice in the sealing qualities of the closure. As a result, sealing devices in various forms have been devised to resolve this particular problem; however, none to date have proven entirely satisfactory for one reason or another.

In the known type of sealing device utilizing sealing rails, a reliable seal of the sealing rails in the circumferential grooves in the window casement is attained only when grooves and sealing rails are fitted together extremely accurately, a task which is not only difiicul-t to attain, but which increases the cost of the product considerably. Furthermore, it can be shown that in known constructions, as a result of the use of massive metal parts, it is very diflicult to handle the equipment and, as a result, this equipment is not very suitable for mass production. In addition, the bulkiness and complexity of this prior art equipment results in increased production costs without providing a corresponding improvement in the sealing qualities thereof.

A reliable sealing means which, at the same time, is considerably cheaper to manufacture, is of less weight and is economically more suitable for mass production is obtained in accordance with the invention which provides sealing rails made from thin, U-shape formed foil strips of springy, weather-proof material which abut the walls of the circumferential grooves in both the window frame and window casement in an elastically sealing manner. The foil strips are supported by support members provided each with a transverse pair by means of which the sealing rails may be selectively shifted into and out of sealing position against the window casement. The sealing foil is preferably made .2 mm. thick and consists of a non-corrosive steel, phosphor bronze or other suitable material. By this means, it is possible to avoid the heavy U-shaped sealing rails used in known constructions and to replace them with an elastically sealing foil of non-corrosive material having a light weight and a resiliency which will insure 'a tight seal. The connection of the foil with the drive means is accomplished by especially short support members onto which the foil is attached by means of a cover strip.

In order to simplify and reduce the cost of the con nection further, the guide members consist of U-shaped formed sheet metal pieces which are fastened to the base of the circumferential groove by means of rectangularly bent flanges. The drive members at each side of the window are combined into a single rail which is provided with a multitude of slanted slots to each of which is assigned a transverse pin and a guide member. For sealing the corners of the circumferential grooves, an auxil- 7 iary foil strip is used in ZldClltlOn to the regular foil strip.

It is an object of the instant invention to provide a sealing device for window easements, doors and the like utilizing movable sealing rails having resilient sealing foils associated therewith such that extremely high sealing qualities may be attained without the need for accurately machined parts.

It is a further object of the instant invention to provide a sealing device of the type described which may be produced at a relatively low cost due to the use of smaller, more easily handled parts which are easily adapted to mass production techniques.

It is another object of the instant invention to provide a sealing device of the type described which provides for especially good sealing qualities at the corners of the windows or the like to be sealed due to the provision of auxiliary sealing foils at these locations.

It is still another object of the instant invention to provide a sealing device of the type described which is considerably cheaper to manufacture, is of less weight, and is economically more suitable to mass production techniques while additionally capable of providing sealing qualities superior to known devices of a similar type not having such characteristics.

It is still a furtherobject of the instant invention to provide a sealing device of the type described wherein especially effective sealing qualities can be'obtained by provision of sealing rails havingoutwardly extending foil strips capable of engaging the movable window casement or the Window pane itself in a force fit.

Further characteristics and advantages of the invention are given in the following description of an exemplified embodiment of the invention in which the foil sealing strips are arranged in the inner circumferential groove of the window frame and are selectively moved into the circumferential groove of the window casement and wherein:

FIGURE 1 is a partially broken-01f plan view of a window provided with the inventive sealing means;

FIGURE 2 is a corner portion of the window in an enlarged scale;

FIGURE 3 is a cross section according to line III-III ofFIGURE 2;

FIGURE 4 is a cross section through a support member with foil strip;

FIGURE 5 is a cross section through a guide member;

FIGURE 6 is a corner seal of the window in a schematic view in which the two-way arrangement of the foil strip, the drive rail, and the parts between the two are illustrated; 7

FIGURE 7 is a front view'of the corner sealing by means of foil strips;

FIGURE 8 is a view of the expanded foil strips;

FIGURE 9 is a front view of the drive rail, and

FIGURE 10 is a partial cross section through a rnodified sealing arrangement in which a frameless thick glass pane is used as the window casement.

Looking first to FIGURES 1, 3 and 4, the frame 1 of the window generally surrounds a pivotable or swingable wind-ow casement 2, which is provided with a surrounding space 3 of at least 3 mm. Width, so that the easement in its position free of the sealing rails may be rotated or pivoted through approximately l without being restrained by the frame.

The inner circumference of frame 1 is provided with a circumferential groove 4 within which the sealing elements are shiftably arranged so as to selectively protrude into and close off the space 3 in their advanced position, as illustrated in FIGURE 3. Opposite the circumferential groove 4 in the frame 1, the casement 2 is provided at its outer circumference with a counter-groove 5 into 0 which the sealing elements are selectively moved whereby the space 3 is closed and the easement 2 is sealed against the frame.

The sealing strip includes a foil strip 6 which is provided as a sealing element at both lateral sides of the window, the lateral portions of the strip 6 being bent over a U-shaped support member 7, as seen in FIGURES 3 and 4, such that these lateral portions will flex against the inner walls of the

grooves

4 and 5 over their entire length. Thefoil strip 6 reinforced by a cover strip 8 is fastened by means of screws 9 extending into the support member 7. As Will be seen, the foil sealing strips 6 are not moved perpendicularly to the

circumferential grooves

4 and 5 to effect sealing of the space 3, but are moved through an angle of 45 so that during their movement, the corners remain in tight contact at the perpendicularly connected sealing strips.

In order to produce this movement of the sealing strip 6 about an angle of 45, the transverse pins 11 attached to the support member '7, as seen in FIGURES 2, 3 and 4, extend into the slanted slots 12 provided in the guide pieces 13, which slots are at an angle of 45 to the longitudinal direction of the respective groove portion. The guide pieces 13 are formed as U-shaped metal strips and are provided (FIGURE 5) at the end of their legs with rectangularly bent flanges 14 by means of which they are screwed to the base of the circumferential groove 4.

The movement of the sealing strip 6 at each side of the window is produced by a common drive member in the form of a punched rail 15 (FIGURE 9) which is provided with slanted slots 16 each of which embraces the transverse pins 11 and also at the same time works together in a coordinate with all support members of the respective window side. This drive rail 15 is, as FIG-

URES

2 and 3 show, adjustably arranged inside the guide piece 13. By a movement of the driving rails 15 in a longitudinal direction, the transverse pins 11 are moved upwardly or downwardly by means of the slanted slots 16 in conjunction with the permanently located oppositely disposed slanted slots 12 in the guide pieces 13 with which they engage. As a result of the disposition of the

slots

12 and 16, the pins 11 are forced to moved at an angle of 45 in relation to the longitudinal direction whereby the corresponding foil strips 6 over the support members 7 are taken along in the same direction. The entire sealing rail assembly thereby moves into the counter groove or out thereof in response to selective actuation.

The driving rails 15 are connected at the corners of the window with each other by short chains 17 or other suitable flexible linkage which are carried over guide pulleys 18 to form a closed circuit into which, at an appropriate point, for example, at the left side of the frame (FIG- URE 1), a hand lever 21 engages a gear tooth system 19, the rotation of which moves all sealing foils simultaneously in or out of the counter groove 5 by producing a longitudinal shifting in all of the driving rails 15. The guide rollers 18 are supported at punched or cast pedestals 22 (FIGURE 6) screwed to the base of the circumferential groove. The slanted grooves 16 of the drive rails 15 can be made with an arbitrary slant; however, the less the slanted slots 16 deviate from the longitudinal direction,

the more is the reduction of the force at the hand lever 21 to overcome the resistance of the movement of the sealing rails.

In order to accomplish 'corner sealing (FIGURE 7) of the foil strip 6, an auxiliary foil strip 23 (FIGURE 8) is provided at each corner of the sealing rail in addition to the main foil strip 6. -As can be seen from FIGURE 8, the main foil strips 6, as well as the auxiliary foil strips 23, are provided at one end with two slots 24, each directed along bending lines 25. After bending the

side portions

28 and 29 of the

foil strips

6 and 23, respectively, along the bending line 25, by means of which the U-shape form shown in FIGURE 3 and FIGURE 4 is produced, the middle tongues 26 and 39, respectively, formed by the slots 24, are bent perpendicularly upwardly about the bending lines 27 whereas the lateral tongues 28 and 29' maintain the direction of the

bent side portions

28 and 29.

In this condition, the two

foil strips

6 and 23 are installed in their window corner (FIGURE 7). The foil strip 6 in the corner, as shown in FIGURE 7, is vertical; its tongue 26 is horizontal. Both are covered by the cover strip 8 constructed as a combined corner. Around the main foil strip 6 together With tongue 26 and on the outside thereof is disposed the horizontally erected auxiliary foil strip 23 together with the vertically upwardly bent tongue 30. A support member 7 is provided at the outer end of tongue 30 which, together with the cover strip 8 and under tight compression of the tongue 30 and the main foil strip 6, is screwed or riveted together. On the horizontal part of the corner, the cover strip 8 together with the support member 7 arranged under the cover strip are screwed together or riveted together under tight compression of tongue 26 and auxiliary foil strips 23.

It is obvious that the corner seal consisting of the

parts

6, 26, 23, 30 tightly combined with two support members 7 can be moved at an angle of 45 relative to the perpendicular, whereby this corner seal, relative to the neighboring corner seals moving in a perpendicular direction thereto, remains entirely sealed. As is evident from FIG- URE 7, the lateral tongues 23' and 29 of the main foil strip 6 and the auxiliary foil strip 23, respectively, cover each other at the most outer corner portions.

FIGURE 10 shows a modified form of the scaling in which a thick frameless glass panel 31 is used as the window casement which, along its circumferential edges and on each side thereof, is provided with small sheet metal strips 32 made of springy material which define a lower space 32 and into which the sealing rail 6 may be tightly moved so as to produce a force fit. In place of this, corresponding sheet rnetal strips 32 may also be provided laterally on the foil strip 6 so as to protrude on both sides over the edges of the glass pane 31 during the movement of the foil strip 6 forming a force fit with said glass.

Although the invention is described in connection with the sealing of a window, the scope of the invention is such that the same sealing may also be used with corresponding suitable construction for doors, flaps, closing devices,

and other wall openings. Therefore, the scope of the invention is to be limited only to that attributed to the attached claims.

I claim: 1. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window comprising: a plurality of sealing rails movably arranged within the circumferential groove of said window frame,

stationary guide members having inclined slots for limiting the extent of movement of said sealing rails, said sealing rails being provided with transverse pins engaging said guide members,

drive members actuated in the direction of the circumferential groove in said window frame such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second' position blocking the space between said window frame and said window casing,

said sealing rails including U-shaped foil strips of springy material which abut the walls of the circumferential groove in an elastically scaling manner and are mounted on support members surrounding said guide members, said support members having said transverse pins secured thereto.

2. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window comprising:

a plurality of sealing-rails movably arranged within the circumferential groove of said window frame,

drive members actuated in the direction of the circumferential groove in said window frame such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said sealing rails including U-shaped foil strips of springy material which abut the walls of the circumferential groove in an elastically-sealing manner and are mounted on support members surrounding said guide members, said support members having said transverse pins secured thereto,

said foil strips having a thickness of substantially .2

mm. and being made of a non-corrosive steel, phosphor bronze. 3. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window comprising:

a plurality of sealing rails movably arranged within the circumferential groove of said window frame,-

drive members actuated in the direction of the circumferential groove in said window frame such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within saidcircumferential groove of said window frame to a second position blocking the space between said window frame and said window casing, said sealing rails including U-shaped foil strips of springy material which abut the walls of the circumferential groove in an elastically sealing manner and are mounted on support memberssurrounding said guide members, said support members having said transverse pins secured thereto,

said foil strips having a thickness of substantially .2 mm. and being made of a non-corrosive steel, phosphor bronze,

said guide members consisting of U-shaped supports fastened to the base of the circumferential groove in said window frame by means of rectangularly bent flanges. 4. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window, comprising: a plurality of sealing rails movably arranged within the circumferential groove of said window frame,

stationary guide members having inclined slots for limiting the extent of movement of said sealing rails, said sealing rails being provided with transverse pins engaging said' guide members,

drive members actuated in the direction of the circumferential groove in said window frame such that movement of said drive members in relation to said guide members will eifect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said sealing rails including U-shaped foil strips of springy material which abut the walls of the circumferential groove in an elastically sealing manner and are mounted on support members surrounding said guide members, said support members having said transverse pins secured thereto,

said guide members consisting of U-shaped supports fastened to the base of the circumferential groove in said window frame by means of rectangularly bent flanges,

said drive members having further inclined slots extending oppositely to the inclined slots in said stationary guide members, said further inclined slots ,also engaging said transverse pins.

5. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window, comprising:

a plurality of sealing rails movably arranged within the circumferential groove of said window frame, stationary guide members having inclined slots for limiting the extent of movement of said sealing rails, said sealing rails being provided with transverse pins engaging said guide members, 7 drive members actuated in the direction of the circumferential groove in said window frame such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said guide members consisting of U-shaped supports fastened to the base of the circumferential groove in said window frame by means of rectangularly bent flanges, said drive members having further inclined slots extending oppositely to the inclined slots in said stationary guide members, said further inclined slots also engaging said transverse pins,

reinforcing means for securing said foil strips to said U-shaped supports as well as serving to reinforce said foil strips.

- 6. A sealing device for windows, especially casementtype windows provided with a window frame and a mov able window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window comprising:

a plurality of sealing rails movably arranged within the circumferential groove of said window frame,

1 stationary guide members having inclined slots for limiting the extent of movement of said sealing rails, said sealing rails being provided with transverse pins engaging said guide members,

drive members actuated in the direction of the circuma ferential groove in said window frame such that movement of said drive members in relation to said guide members will eflfect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said drive members having further inclined slots extending oppositely to the inclined slots in said stationary type windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to( prevent binding upon opening said window, comprising:

stationary guide members having inclined slots for limiting the extentof movement of said sealing rails, said sealing rails being provided with transverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove in said window frame and having fur-, ther inclined slots extending oppositely to the inclined slots in said stationary guide members and also engaging said transverse pins such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said sealing rails including U-shaped foil strips of springy material which abut the walls of the circum ferential groove in an elastically sealing manner and are mounted on support members surrounding said guide members, said support members having said transverse pins secured thereto,

said guide members consisting of U-shaped supports fastened to the base of the circumferential groove by means of rectangularly bent flanges,

reinforcing means for securing said foil strips to said U- shaped supports under high pressure, and

auxiliary foil means having a portion thereof interleaved with said U-shaped foil strip at the corners of said Window frame on said sealing rails so as to provide an essentially complete seal at said corners.

8. A sealing device for windows, especially casement-,

type windows having a window frame and a movable window casement each having facing circumferential grooves, comprising sealing means movably arranged within the groove in said window frame along the entire length thereof, guide means for directing movement of said sealing means between a first position entirely within said window frame groove and a second position effectively blocking any openings between said window frame and window casement, and drive means for moving said sealing means from said first position to said second position, said sealing means, guide means and drive means being arranged in overlapping stacked relationship to one another around substantially the entire periphery of said window frame with said guide means enclosing said drive means and said sealing means enclosing both said guide means and said drive means in said first position of said sealing means.

9. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window, comprising:

. 8 H ment of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said sealing means, guide means and drive means being arranged in overlapping stacked relationship to one another around substantially the entire periphery of said window frame with said guide means enclosing said drive means and said sealing means enclosing both said guide means and said drive means in said first position of said sealing means.

10. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and beingslightly'spaced from one another to prevent binding upon opening said window, comprising:

said sealing rails including U-shaped foil strips of springy material which abut the walls of the circumferential groove in an elastically sealing manner and are mounted on support members surrounding said guide members, said support members having said transverse pins secured thereto.

11. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window, comprising:

stationary guide members having inclined slots for limiting the extent of movement of said sealing rails, said sealing rails being provided with transverse pins engaging said inclined slots,

drive members actuated in the direction of the circumferential groove in said window frame and having further inclined slots extending oppositely to the inclined slots in said stationary guide members and also engaging said transverse pins such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said U-shaped foil strips each being provided at one end thereof with a pair of slots eifectively forming three tongue portions in said strip, the central one of said tongue portions being bent perpendicularly to the base and in an opposite direction to the side portions of said U-shaped strips.

12. A sealing device for windows, especially casementtype windows provided with a substantially rectangular window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window, comprising:

drive members actuated in the direction of the circumferential groove in said window frame and having further inclined slots extending oppositely to the inclined slots in said stationary guide members and also engaging said transverse pins such that move ment of said drive members in relation to saidguide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing,

said guide members consisting of U-shaped supports fastened to the base of the circumferential groove by means of rectangularly bent flanges, said sealing rails providing at each corner of said window frame in addition to said U-shaped foil strips, a short auxiliaryfoil strip securely fastened to said U-shaped foil strip such that the ends of each of said strips overlaps the other foil in mutually transverse directions. 13. A sealing device for windows, especially casement-type Windows provided with a substantially rectangular window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said windows, comprising:

a plurality of sealing rails movably arranged within the circumferential groove of said window frame.

said sealingrails including U-shaped foil strips of springy material which abut the walls of the cir-' cumferential groove in an elastically sealing manner and are mounted on support members surrounding said guide members, said support members having said transverse pins secured thereto,

said sealing rails providing at each corner of said window frame in addition to said U-shaped foil strips a short auxiliary foil strip securely fastened to said U-shaped foil strip such that the ends of each of said strips overlaps the other foil in mutually transverse directions,

and angular reinforcing means for securing said U- shaped foil strips and said auxiliary foil strips to said U-shaped supports such that portions of said foil limiting the extent of movement of said sealing rails, said sealing rails being provided with transverse pins engaging said inclined slots, drive members actuated in the direction of the circumferential groove in said window frame and having further inclined slots extending oppositely to the inclined slots in said stationary guide members and also engaging said transverse pins such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking the space between said window frame and said window casing, said window casement including a frameless glass pane provided along the circumference on both sides thereof with protruding springy strips forming a space therebetween, said sealing rails being movable by said drive members under control of said guide members into said space with a force fit so as to provide an essentially complete seal between said frame and said casing. 15. A sealing device for windows, especially casementtype windows provided with a window frame and a movable window casement each having facing circumferential grooves and being slightly spaced from one another to prevent binding upon opening said window, comprising: a plurality of sealing rails movably arranged within the circumferential groove of said window frame,

drive members actuated in the direction of the circumferential groove in said window frame and having further inclined slots extending oppositely to the inclined slots in said stationary guide members and also engaging said transverse pins such that movement of said drive members in relation to said guide members will effect a shifting of said sealing rails from a first position within said circumferential groove of said window frame to a second position blocking thespace between said window frame and said window casing,

said sealing rails including laterally protruding foil strips capable of engaging said movable window casernent when driven to its operative position by said drive members under control of said guide members. 16. A sealing device for windows, especially casement-type windows having a window frame and a movable window casement each provided with facing circumferential grooves, comprising:

sealing means movably arranged within the groove in said window frame along the entire length thereof,

guide means for directing movement of said sealing means between a first position entirely within said Window frame groove and a second position effectively blocking any openings between said window frame and window casement, and drive means for moving said sealing means at an angle from said first position to said second position,

said sealing means including a plurality of resilient foil strips of springy material which abut the walls of said circumferential grooves in an elastically sealing manner.

stationary guide members having inclined slots for 17. A sealing device for windows, especially casementtype windows having a window frame and a movable window casement each provided with facing circumferential grooves, comprising:

sealing means movably arranged within the groove in said window frame along the entire length thereof, guide means for directing movement of said sealing means between a first position entirely within said window frame groove and a second position effectively blocking any openings between said window frame and window casement, and

drive means for moving said sealing means at an angle fro-m said first position to said second position,

said sealing means including a plurality of resilient foil strips of springy material which abut the walls of said circumferential grooves in an elastically sealing manner,

said guide means having inclined slots for limiting the extent of movement of said sealing means, said sealing means being provided with transverse pins engaging said inclined slots. 18. A sealing device for windows, especially casementtype windows having a window frame and a movable window casement each provided with facing circumferential grooves, comprising:

guide means for directing movement of said sealing means between a first .position entirely within said window frame groove and a second position effectively blocking any openings between said window 'rame and window casement, and

drive means for moving said sealing means at an angle from said first position to said second position,

said sealing means including a plurality of resilient foil strips of springy material which abut the walls of said circumferential grooves in' an elastically sealing manner,

said guide means having inclined slots for limiting the extent of movement of said sealing means, said sealing means being provided with transverse pins engaging said inclined slots,

12 said drive means having further inclined slots extending oppositely to the inclined slots in said stationary guide members, said further inclined slots also engaging said transverse pins. 19. A sealing device for windows, especially casementtype windows having a wnidow frame and a movable window casement each provided with facing circumferential grooves, comprising:

said guide means having inclined slots for limiting the extent of movement of said sealing means, said sealing means being provided with transverse pins engaging said inclined slots, said drive means having further inclined slots extending oppositely to the inclined slots in said stationary guide members, said further inclined slots also engaging said transverse pins,

auxiliary foil means interleaved with said resilient foil strips at selective locations along the circumference of said window frame so as to provide a movable sea] at these locations.

References Cited by the Examiner UNITED STATES PATENTS 509,704 11/1893 Thiel 2051 2,207,065 7/1940 McCormick 20-48 2,753,020 7/1956 Ware l89-69 HARRISON R. MOSELEY, Primary Examiner.

Claims

8. A SEALING DEVICE FOR WINDOWS, ESPECIALLY CASEMENTTYPE WINDOWS HAVING A WINDOW FRAME AND A MOVABLE WINDOW CASEMENT EACH HAVING FACING CIRCUMFERENTIAL GROOVES, COMPRISING SEALING MEANS MOVABLY ARRANGED WITHIN THE GROOVE IN SAID WINDOW FRAME ALONG THE ENTIRE LENGTH THEREOF, GUIDE MEANS FOR DIRECTING MOVEMENT OF SAID SEALING MEANS BETWEEN A FIRST POSITION ENTIRELY WITHIN SAID WINDOW FRAME GROOVE AND A SECOND POSITION EFFECTIVELY BLOCKING ANY OPENINGS BETWEEN SAID WINDOW FRAME AND WINDOW CASEMENT, AND DRIVE MEANS FOR MOVING SAID SEALING MEANS FROM SAID FIRST POSITION TO SAID SECOND POSITION, SAID SEALING MEANS, GUIDE MEANS AND DRIVE MEANS BEING ARRANGED IN OVERLAPPING STACKED RELATIONSHIP TO ONE ANOTHER AROUND SUBSTANTIALLY THE ENTIRE PERIPHERY OF SAID WINDOW FRAME WITH SAID GUIDE MEANS ENCLOSING SAID DRIVE MEANS AND SAID SEALING MEANS ENCLOSING BOTH SAID GUIDE MEANS AND SAID DRIVE MEANS IN SAID FIRST POSITION OF SAID SEALING MEANS.