US1620109A - Check for garage-door-closing means - Google Patents
Check for garage-door-closing means Download PDFInfo
- Publication number
- US1620109A US1620109A US83519A US8351926A US1620109A US 1620109 A US1620109 A US 1620109A US 83519 A US83519 A US 83519A US 8351926 A US8351926 A US 8351926A US 1620109 A US1620109 A US 1620109A
- Authority
- US
- United States
- Prior art keywords
- door
- rail
- piston
- rails
- garage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000000979 retarding effect Effects 0.000 description 10
- 238000005192 partition Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000632072 Rallus tenuirostris Species 0.000 description 1
- 241000287181 Sturnus vulgaris Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/04—Fasteners specially adapted for holding sliding wings open
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/003—Braking devices, e.g. checks; Stops; Buffers for sliding wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
- E05F1/025—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights with rectilinearly-moving counterweights
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/21—Brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/252—Type of friction
- E05Y2201/254—Fluid or viscous friction
- E05Y2201/256—Fluid or viscous friction with pistons or vanes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/262—Type of motion, e.g. braking
- E05Y2201/264—Type of motion, e.g. braking linear
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
- Y10S16/20—Door brakes, e.g. track or guideway
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/12—Closure operators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/0908—Emergency operating means
- Y10T292/091—Platform
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1051—Spring projected
- Y10T292/1052—Operating means
- Y10T292/1061—Rigid
Definitions
- KiRNEAUEFE 9 A CHECK FOR GARAGE DOOR CLOSING MEANS Filed Jan. 25. i926 2 sheecS-Sheet M r h 8 1927.
- This invention relates to automatically closing doors for garages and the like, and has for its objects
- a speed retarding mechanism adapted to provide a regulating resistance during the main portion of the closing movement of the door, and which in the final movement of the door is released and returned to normal position
- FIG. 1 is an elevation of a garage door having the present invention applied, thedoor' being in its open position and latched therein.
- a f Fig. 2 is a similar view showing the door released and moving to-a closed condition, parts of the door being broken away to show the inclined operating rails onthe door.
- Fig. 3 is adetail transverse section of the door and door frame.
- 7 Fig. 4c is a vertical axial section of pneumatic retardingappliance.
- Fig. 5 is a horizontal section of the same, on line 5-5, Fig. 4.
- the garage door 1 is shownas supported by and movable on an over head track 2 by the usual hangers 3 with: a'normal tendency to move to a closedcondition under the influence of a pull cable 41 and gravity weight 5.
- a door of the described type has attached at its lower end a ratchet bar or rail 6 formed with a pair of ratchet teeth 6 and 6" near its forward end as shownin Figs. 1 and 2.
- the door sill of the structure is formed with a receiving cavity adapted to receive an open topcasing 7 approximating double the length of the door 1, as shown.
- a. rail 8 is pivoted at one end with the other end of said rail provided with a ratchet dog or detent 9 adapted for operative engagement with the ratchet teeth 6, 6" of the. door rail 6 aforesaid, to hold the door in the open position shown in 1.
- the upper edge of the rail 8 is yieldingly held by a spring 8 a distance abovethe surface of the door sill, as shown: in Fig; 3, so
- a retarding means is provided and has: interconnection therewith through mechanisms and features as follows: 1
- a tubular casing 12 isfixedly secured in a vertical position. on a jamhof the doorway, with a vertical location intermediate of the inclined rails 10, 11 aforesaid.
- the lower portion of the casing12 is of a closed bottom form, toprovide a piston chamber 13 for the movement of the piston;
- the upper part of the casing 12 constitutes a receiving chamber 15 for the fluid medium of the mechanism in an upward movementof said fluid by the piston 14.
- Said upper and lower portions of the casing12 are separated by a partition 16 to form the chambers 13 and 15, with such partition having a reduced or choke passage 17 for the'fluid in its passage from one chamber to the other.
- the passage 17 will preferably be regulated by the usual adjustable needle valve 18 in general use in fluid retarding appliances, and in addition the partition 16 will have a central orifice for the passage of the rod or stem of the piston 14 aforesaid.
- the piston rod or stem 19 just referred to is of a tubular form and passes upwardly through the partition 16 and top wall of the casing 12 for attachment to the-hereinafter described operating means, and in the preferred construction the piston rod 19 will have adetail construction as follows Intermediate its length and adjacent to the partition 16, the piston rod 19 is formed With a reduced neck 20 in its perimeter, to provide between said neck and central orifice of the partition 16 a free annular space for the back-flow of the fluid medium into the piston chamber 13. as the piston 14-. reaches the lower end of the piston chamber.
- the bore of the piston rod 19 is formed with a valve seat for a downwardly closing check Valve 21, preferably moving under the influence of a spring 22.
- Said valve 21 is adapted to move to an open condition, when in a descent of the piston 14 any fluid that may be beneath the piston can escape into the upper chamber 15 of the casing 12.
- At its upper end of the piston rod 19 carries a lateral arm 23 adapted for operative engagement underneath the track rail 11 on the door 1. to receive a downward movement therefrom and impart such movement to the piston 14.
- a vertical yoke member 24- is also attached. to the upper end of the piston rod 19, and depends down the side of the casing- 12. and in guiding engagement therewith. Said yoke extends below the casing 12 and at its lower end is provided with a lateral arm 25 adapted for operative engagement with the upper face of the track rail 10 of the door 1, to re ceive upward movement therefrom and impart the same to the piston '14-.
- the lateral arm 25 of the yoke member 241 is of the pivotal or trip type, so that in an opening movement of the door 1, by manual force, the arm 25 may ride beneath'the inclined rail 10, and at the end of the opening movement of the door, move from beneath the rail 10 to an active position inline with the upper face of said rail for actual use in a succeeding automatic closing movement of the door.
- an automatic sliding door closing means of the type described and in which automatic latching means is provided for holding the door in its open position in connection with means of the stored energy type tending to move the door to its closed position.
- an automatic sliding door closing means of the type described and in which automatic latching means is provided for holding the door in its open position in connection with means of the stored energy type tending to move the door to its closed posi tion.
- an automatic sliding door closing means'of the type described and in which automatic latching means is provided for holding the door in itsopen position in connection with means of the stored energy type tending to move the door to its closed position the combination of a pair of track rails secured in both vertical and horizontal spaced relation on the door, and a retarding means carried on the door frame intermediate of said rails and having successiye operative engagementtherewtith, the retarding means comprising aclosed casing divided by a horizontal partition into a lower piston chamber and an upper receiving chamber, a piston arranged in the lower chamber and having a piston rod extending up through the top of said casingfa lateral arm attached to the upper end of thepiston rod andextending into the path of one of the inclined rails on the door,-and a depending yoke also attached to the top of the piston rod and carrying on its lower end a lateral arm of the trip type extending into the path of the other inclined rail on the door.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Description
" 1W5@,109 1927' M. KiRNEAUEFE 9 A CHECK FOR GARAGE DOOR CLOSING MEANS Filed Jan. 25. i926 2 sheecS-Sheet M r h 8 1927.
a c M. KIRNBAUER CHECK FOR GARAGE DOOR CLOSING MEANS Filed Jan. 25. 1926 2 Sheets-Sheet 2 J i 6' l a ummm 8 am WW \9 2mg 7 men/Z 07 Patented Mar. 8, 19327.
unrrsn stares MICHAEL xrnnsaunnor ronns'r PARK, ILLINOIS;
CHECK FOB, GARAGE DOOR-CLOSING MEANS. I
Application filed January 25, 1926. Serial No. 83,519;
This invention relates to automatically closing doors for garages and the like, and has for its objects To providein connection with a self closing garage door of the present type, a speed retarding mechanism adapted to provide a regulating resistance during the main portion of the closing movement of the door, and which in the final movement of the door is released and returned to normal position,
permitting a free manualopening of the door and assuming a proper condition for a succeeding automatic closing movement of the door, all as will hereinafter more fully appear.
In the accompanying drawings Fig. 1 is an elevation of a garage door having the present invention applied, thedoor' being in its open position and latched therein. a f Fig. 2 is a similar view showing the door released and moving to-a closed condition, parts of the door being broken away to show the inclined operating rails onthe door. I
Fig. 3 is adetail transverse section of the door and door frame. 7 Fig. 4c is a vertical axial section of pneumatic retardingappliance.
' Fig. 5 is a horizontal section of the same, on line 5-5, Fig. 4.
the
in the several views.
In the drawings, the garage door 1 is shownas supported by and movable on an over head track 2 by the usual hangers 3 with: a'normal tendency to move to a closedcondition under the influence of a pull cable 41 and gravity weight 5.
In the present improvement a door of the described type has attached at its lower end a ratchet bar or rail 6 formed with a pair of ratchet teeth 6 and 6" near its forward end as shownin Figs. 1 and 2.
The door sill of the structure is formed with a receiving cavity adapted to receive an open topcasing 7 approximating double the length of the door 1, as shown. In the interior of the casing 7 and near an end of the same, a. rail 8 is pivoted at one end with the other end of said rail provided with a ratchet dog or detent 9 adapted for operative engagement with the ratchet teeth 6, 6" of the. door rail 6 aforesaid, to hold the door in the open position shown in 1.
The upper edge of the rail 8 is yieldingly held by a spring 8 a distance abovethe surface of the door sill, as shown: in Fig; 3, so
that the railwill be depressed by the wheels of the vehicle passing over it, to disengage the dog 9 from engagement with the ratchet teeth 6, 6 and permit a closing movement the vehicle passing over the raiL 8, acts to release the dog 9 from the ratchet tooth 6" permitting a: slight movement of the door, as indicated in dotted lines in'Fig; 1, with a re-engagement of-the dog 9 with the next ratchet tooth 6". The succeeding passage of a rearmost wheel of the vehicle over the rail 8 actuates the same to release the dog 9 from the ratchet tooth 6 and permit the door to move to its fully closed position. In such movement the point of the dog 9 ridesagainst the plane under surface of the door rail or bar 6. 1
With a: view to prevent undue speed in the closing movement of thedoor 1, a retarding means is provided and has: interconnection therewith through mechanisms and features as follows: 1
Upon the inner face of the} door 1, a pair of inclined track rails 10 and 11 are secured in vertically spaced relatiomwith the inc'li- 7 nation of one rail in a direction oppositeto Like reference numerals indicate like parts;
the inclination of'the other rail. In a horizontal direction the rails 10, 1-1 are also in spaced relation, in order that in a closing. movement of the door one rail will terminate its operative engagement with the retarding device before the other rail can have operative engagement with said; device, and in the preferred construction said-retarding device will have a structural formation and association of parts as follows. 7
A tubular casing 12 isfixedly secured in a vertical position. on a jamhof the doorway, with a vertical location intermediate of the inclined rails 10, 11 aforesaid.
The lower portion of the casing12is of a closed bottom form, toprovide a piston chamber 13 for the movement of the piston;
14 of the mechanism. The upper part of the casing 12 constitutes a receiving chamber 15 for the fluid medium of the mechanism in an upward movementof said fluid by the piston 14. Said upper and lower portions of the casing12 are separated by a partition 16 to form the chambers 13 and 15, with such partition having a reduced or choke passage 17 for the'fluid in its passage from one chamber to the other. The passage 17 will preferably be regulated by the usual adjustable needle valve 18 in general use in fluid retarding appliances, and in addition the partition 16 will have a central orifice for the passage of the rod or stem of the piston 14 aforesaid.
The piston rod or stem 19 just referred to, is of a tubular form and passes upwardly through the partition 16 and top wall of the casing 12 for attachment to the-hereinafter described operating means, and in the preferred construction the piston rod 19 will have adetail construction as follows Intermediate its length and adjacent to the partition 16, the piston rod 19 is formed With a reduced neck 20 in its perimeter, to provide between said neck and central orifice of the partition 16 a free annular space for the back-flow of the fluid medium into the piston chamber 13. as the piston 14-. reaches the lower end of the piston chamber.
Adjacent to the aforesaid reduced neck 20. the bore of the piston rod 19 is formed with a valve seat for a downwardly closing check Valve 21, preferably moving under the influence of a spring 22. Said valve 21 is adapted to move to an open condition, when in a descent of the piston 14 any fluid that may be beneath the piston can escape into the upper chamber 15 of the casing 12.
At its upper end of the piston rod 19 carries a lateral arm 23 adapted for operative engagement underneath the track rail 11 on the door 1. to receive a downward movement therefrom and impart such movement to the piston 14.
A vertical yoke member 24-, is also attached. to the upper end of the piston rod 19, and depends down the side of the casing- 12. and in guiding engagement therewith. Said yoke extends below the casing 12 and at its lower end is provided with a lateral arm 25 adapted for operative engagement with the upper face of the track rail 10 of the door 1, to re ceive upward movement therefrom and impart the same to the piston '14-.
In the construction shown, the lateral arm 25 of the yoke member 241 is of the pivotal or trip type, so that in an opening movement of the door 1, by manual force, the arm 25 may ride beneath'the inclined rail 10, and at the end of the opening movement of the door, move from beneath the rail 10 to an active position inline with the upper face of said rail for actual use in a succeeding automatic closing movement of the door.
Having thus fully described my invention what I claim and desire to secure by Letters Patent, is
1. In an automatic sliding door closing means of. the type described and in which automatic latching means is provided for holding the door in its open position in connection with means of the stored energy type tending to move the door to its closed position, the combination of a pair of inclined track rails secured in both vertical and horizontal spaced relation on the door, and a re tarding means carried on the door frame intern'iediate of said rails and having successive operating engagement therewith.
2. In an automatic sliding door closing means of the type described and in which automatic latching means is provided for holding the door in its open position in connection with means of the stored energy type tending to move the door to its closed position. the combination of a pair of inclined track rails secured in both vertical and horizontal spaced relation on the door, and a retarding means carried on the door frame intermediate of said rails and having successive operative engagement therewith, the retarding means comprising a closed casing divided by a horizontal partition into a lower piston chamber and an upper receiving chamber, a piston arranged in the lower chamber and having a piston rod extending up through the top of said casing, a lateral arm attached to the upper end of the piston rod and extending into the path of one of the inclined rails on the door and a depending yoke also attached to the top of the piston rod and carrying on its lower end a lateral arm extending into the path of the other inclined rail of the door.
3. In an automatic sliding door closing means of the type described and in which automatic latching means is provided for holding the door in its open position in connection with means of the stored energy type tending to move the door to its closed posi tion. the combination of a pair of inclined track-rails secured in both horizontal and vertical spaced relation on the door, and a retarding means carried on the door frame intermediate of said rails and having 'successive operating engagement therewith, the retarding means comprising a closed casing divi ded by a horizontal partition into a lower piston chamber and an upper receiving chamber, a piston arranged in the lower chamber and having a piston rod extending up through the top of said casing, a lateral arm attached to the upper end of the piston rod and extending into the path of one of the inclined rails on the door, and a depending yoke also attached to the upper end of the piston rod and carrying on its lower end a lateral arm extending into the path of the other inclined rail on the door.
42. In an automatic sliding door closing means'of the type described and in which automatic latching means is provided for holding the door in itsopen position in connection with means of the stored energy type tending to move the door to its closed position, the combination of a pair of track rails secured in both vertical and horizontal spaced relation on the door, and a retarding means carried on the door frame intermediate of said rails and having successiye operative engagementtherewtith, the retarding means comprising aclosed casing divided by a horizontal partition into a lower piston chamber and an upper receiving chamber, a piston arranged in the lower chamber and having a piston rod extending up through the top of said casingfa lateral arm attached to the upper end of thepiston rod andextending into the path of one of the inclined rails on the door,-and a depending yoke also attached to the top of the piston rod and carrying on its lower end a lateral arm of the trip type extending into the path of the other inclined rail on the door.
Signed at Chicago, Illinois, this 23rd day of January 1926.
MICHAEL KIRNBAUER. 7
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83519A US1620109A (en) | 1926-01-25 | 1926-01-25 | Check for garage-door-closing means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83519A US1620109A (en) | 1926-01-25 | 1926-01-25 | Check for garage-door-closing means |
Publications (1)
Publication Number | Publication Date |
---|---|
US1620109A true US1620109A (en) | 1927-03-08 |
Family
ID=22178852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US83519A Expired - Lifetime US1620109A (en) | 1926-01-25 | 1926-01-25 | Check for garage-door-closing means |
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Country | Link |
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US (1) | US1620109A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0661410A2 (en) * | 1993-12-01 | 1995-07-05 | Novoferm-Stahlbauwerk Ing. Walter Neumayer Kg. | Directional brake for rail guided objects |
-
1926
- 1926-01-25 US US83519A patent/US1620109A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0661410A2 (en) * | 1993-12-01 | 1995-07-05 | Novoferm-Stahlbauwerk Ing. Walter Neumayer Kg. | Directional brake for rail guided objects |
EP0661410A3 (en) * | 1993-12-01 | 1995-10-11 | Novoferm Stahlbauwerk Kg | Directional brake for rail guided objects. |
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