CA1266356A - Inlet valve for use with a central vacuum system - Google Patents
Inlet valve for use with a central vacuum systemInfo
- Publication number
- CA1266356A CA1266356A CA000510354A CA510354A CA1266356A CA 1266356 A CA1266356 A CA 1266356A CA 000510354 A CA000510354 A CA 000510354A CA 510354 A CA510354 A CA 510354A CA 1266356 A CA1266356 A CA 1266356A
- Authority
- CA
- Canada
- Prior art keywords
- plate
- door
- vacuum
- inlet valve
- opening
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
Landscapes
- Electric Vacuum Cleaner (AREA)
Abstract
Abstract of the Disclosure An inlet valve is disclosed for use with a central vacuum system including a remotely located vacuum motor and a conduit system interconnecting the vacuum motor to a plurality of vacuum ducts. The inlet valve comprises a plate adapted to be mounted on a wall adjacent the end of each vacuum duct and having an opening therein with an inlet nozzle extending inwardly from such opening for connection to the vacuum duct, a door hingedly connected across the top edge of the plate and adapted to open a full 180° to provide easy access to the opening in the plate for the insertion of a vacuum cleaner implement, a sealing gasket mounted around the opening in the plate and adapted to be engaged by the door for closing the inlet nozzle when no implement is installed therein, and spring means for biasing the door against the sealing gasket.
Description
~Z~356 INLET VALVE FOR USE WITH A CENTRAI, VACUUM SYST~M
This invention relates to an in.let valve for use with a central vacuum system.
It has baen known for a long time to provide built in vacuum or suction systems for use in cleaning residences, offices and other work or living areas. These systems generally comprise a motor operated vacuum pump and a conduit system interconnecting such vacuum pump to a plurality of outlets in the residence, of~ice or particular work or living area. These outlets are normally closed by inlet valves which may be opened for insertion o~ a vacuum cleaner hose or other suitable implement. The condult or duct systeTn is also provided with su1table electrical wiring for energizing the vacuum motor when a vacuu~ cleaner hose or other implement is inserted into the inlet valva.
The inlet valves presently on the market generally.
comprise a plate adapted to be mounted on a wall adjacent the end o~ each vacuum duct and having a central opening with an inlet nozzle extending inwardly from such~opening : : 20 :~or connection to such vacuum duct. The plate opening is , : closod by a door which is~hingedly mounted on the plate ,:
'~ ''' : ' ~ - . .
~63S~;
This invention relates to an in.let valve for use with a central vacuum system.
It has baen known for a long time to provide built in vacuum or suction systems for use in cleaning residences, offices and other work or living areas. These systems generally comprise a motor operated vacuum pump and a conduit system interconnecting such vacuum pump to a plurality of outlets in the residence, of~ice or particular work or living area. These outlets are normally closed by inlet valves which may be opened for insertion o~ a vacuum cleaner hose or other suitable implement. The condult or duct systeTn is also provided with su1table electrical wiring for energizing the vacuum motor when a vacuu~ cleaner hose or other implement is inserted into the inlet valva.
The inlet valves presently on the market generally.
comprise a plate adapted to be mounted on a wall adjacent the end o~ each vacuum duct and having a central opening with an inlet nozzle extending inwardly from such~opening : : 20 :~or connection to such vacuum duct. The plate opening is , : closod by a door which is~hingedly mounted on the plate ,:
'~ ''' : ' ~ - . .
~63S~;
-2-and adaptPd to pivot by about 90D for the insertion of a vacuum cleaner hose or other implement into the inlet nozzle. The problem with this type of inlet valves is that they do not provide easy access to the :inlet nozzle as it is generally required to bend down to fully see the inlet nozzle in order to be able to insert the hose or other implement into it. Furthermore, these doors must be handled with care because they may be easily ~roken when attempts are inadvertently made to open them more than their regular opening angle (90).
It i~ there~ore the object of the present invention to provide an inlet valve having a full 180 door swing thus providing easy access to the inlet nozzle and elim~natlng the risk of breaking the door or the door hinges during opening of the inlet valve.
It is also the object of the present invention to provide an lnlet valve having a concealed door spring which no~ only protect the spring against the environment but also improves the appearance o~ the inlet valve.
It is also a further object of the invention to provide an inlet valve having an improved sealing gasket lodging assembly for lncreasing the life of the sealing ~acket.
The inlet valve in accordance with the present invention, comprises a plate adapted to be mounted on a , .
,.
'' '' '' ' ~L2~i3~6 wall adjacent the end of each vacuum duct and having an opening thereln with an inlet nozzle extending inwardly from such opening for connection to the vacuum duct, a door hingedly mounted across the top edge of the plate and adapted to open a full 180 to provide easy access to the opening in the plate for the insertion of a vacuum cleaner implement, a sealing gasket mounted around the opening in the plate and adapted to be engaged by the door for closing the inlet nozzle when no implement is installed therein, and spring means for biasing the door against the sealing gasket.
The top edge of the door includes a boss ~or housing a hinge pin. A slot is provided across the top edge of the plate and two facing hinge mounts are located in opposing edges of such slot for pivotally mounting both ends o~ the hinge pin. The spring is preferably housed in the boss in the top of the door to protect it against th~
environment and also improve the appearance o~ the inlet valve.
A groove is also pre~erably provlded in the body of the ptate around the opening in the plate for housing the sealing gasket and so protect it against the environment.
The inventioD w111 now be disclosed, hy way of example, with refereoce to th~ accorpanving drawing~ in .~
.: ~ :. : :' .. .. .. . .
i63~i~
which:
Figure 1 is a front vi~w of an inlet valve in accordance with the invention with the door opened;
Figure 2 is a bacX view of the inlet valve shown in Figure 1 with the door olosed; and Figure 3 is a view taken along a line 3-3 of Figure 2.
Referring to the drawings, there is shown an inlet valve comprising a plate 10 having a central opening 12 with an inlet nozzle 14 extending inwardly from such opening for connection to the end of a vacuum duct 16 extending through the wall 18 of a building. A door 20 is hingedly mounted in a slot 22 axtending across the top edge of the plate. The top edg2 of the door includes a boss 24 housing a hinge pin 26 which is pivotally mounted in two hinge mount~ 28 facing each other in the opposlte edges of slot 22 at the top of the plate. The hinge pin is ret~ined in position in hinge mounts 28 by means of hinge retaining caps 30 ~only one shown). The door is biased in the closed position by means of a helical spring 32 which surrounds hinge pin 26 and is concealed in the boss 24.
The above disolosed hinge structure allows 180 opening of the door 20 as shown in Figure 1 of the drawings. This allows easy insertion of a hose implement 2S ~nto the inlet nozzl~ 14 and, more importantly, eliminates - :,`
, ' ~ ` `, : , :
~Z663~
the risk of breaking the door or the hinge connection which often occurs with known inlet valves which are provided with doors op~ning only about 90. Housing of the spring into boss 24 also protects the spring against the environment and at the same time improves the appearance of the inlet valve when in the open position.
A groove 34 is provided in the body of the plate around opening 12 for positively holding a sealing gasket 36 which i engaged by a ring 38 in the door for closing the inlet valve under the action of the spring 32. ~he groove 34 protects the sealing gasket and increase~ the working life thereo~
The inlet valve is also provided with two electrical contact pins 40 protruding through openings in inlet nozzle 14 and each pin is mounted in a boss ~2 secured to the plate and housing a contact spring 44 located between the head of the contact pin and a tightening screw 46. The vacuum motor M is energized from a suitable sourca o~ voltage V through electrical wires 48 upon short-circuiting of contact pins 40 by means of any electrically conducting portion of the hose implement inserted into inlet nozzle 14. Two guides 50 are mounted on the face of the plate for aligning the current carrying portion of the hose implement with the contact pins 40.
The plate ls also provided with two oval .
63~;6 adjustable mounting screw holes 52 ~or securing the same to the wall of the building.
The inlet valve is preferably made of ABS although it may be made of other suitable plastic material.
Areas 54 on the inside face oi.` door 20 may be used for private brand iden*ification or warnings.
Although the invention has been disclosed with re~erence to a preferred embodiment, it is to be understood that it i8 not limited to such embodiment and that other alternatives are envisaged within the scope of the following claims.
:: :
, '`' -, ~.:
It i~ there~ore the object of the present invention to provide an inlet valve having a full 180 door swing thus providing easy access to the inlet nozzle and elim~natlng the risk of breaking the door or the door hinges during opening of the inlet valve.
It is also the object of the present invention to provide an lnlet valve having a concealed door spring which no~ only protect the spring against the environment but also improves the appearance o~ the inlet valve.
It is also a further object of the invention to provide an inlet valve having an improved sealing gasket lodging assembly for lncreasing the life of the sealing ~acket.
The inlet valve in accordance with the present invention, comprises a plate adapted to be mounted on a , .
,.
'' '' '' ' ~L2~i3~6 wall adjacent the end of each vacuum duct and having an opening thereln with an inlet nozzle extending inwardly from such opening for connection to the vacuum duct, a door hingedly mounted across the top edge of the plate and adapted to open a full 180 to provide easy access to the opening in the plate for the insertion of a vacuum cleaner implement, a sealing gasket mounted around the opening in the plate and adapted to be engaged by the door for closing the inlet nozzle when no implement is installed therein, and spring means for biasing the door against the sealing gasket.
The top edge of the door includes a boss ~or housing a hinge pin. A slot is provided across the top edge of the plate and two facing hinge mounts are located in opposing edges of such slot for pivotally mounting both ends o~ the hinge pin. The spring is preferably housed in the boss in the top of the door to protect it against th~
environment and also improve the appearance o~ the inlet valve.
A groove is also pre~erably provlded in the body of the ptate around the opening in the plate for housing the sealing gasket and so protect it against the environment.
The inventioD w111 now be disclosed, hy way of example, with refereoce to th~ accorpanving drawing~ in .~
.: ~ :. : :' .. .. .. . .
i63~i~
which:
Figure 1 is a front vi~w of an inlet valve in accordance with the invention with the door opened;
Figure 2 is a bacX view of the inlet valve shown in Figure 1 with the door olosed; and Figure 3 is a view taken along a line 3-3 of Figure 2.
Referring to the drawings, there is shown an inlet valve comprising a plate 10 having a central opening 12 with an inlet nozzle 14 extending inwardly from such opening for connection to the end of a vacuum duct 16 extending through the wall 18 of a building. A door 20 is hingedly mounted in a slot 22 axtending across the top edge of the plate. The top edg2 of the door includes a boss 24 housing a hinge pin 26 which is pivotally mounted in two hinge mount~ 28 facing each other in the opposlte edges of slot 22 at the top of the plate. The hinge pin is ret~ined in position in hinge mounts 28 by means of hinge retaining caps 30 ~only one shown). The door is biased in the closed position by means of a helical spring 32 which surrounds hinge pin 26 and is concealed in the boss 24.
The above disolosed hinge structure allows 180 opening of the door 20 as shown in Figure 1 of the drawings. This allows easy insertion of a hose implement 2S ~nto the inlet nozzl~ 14 and, more importantly, eliminates - :,`
, ' ~ ` `, : , :
~Z663~
the risk of breaking the door or the hinge connection which often occurs with known inlet valves which are provided with doors op~ning only about 90. Housing of the spring into boss 24 also protects the spring against the environment and at the same time improves the appearance of the inlet valve when in the open position.
A groove 34 is provided in the body of the plate around opening 12 for positively holding a sealing gasket 36 which i engaged by a ring 38 in the door for closing the inlet valve under the action of the spring 32. ~he groove 34 protects the sealing gasket and increase~ the working life thereo~
The inlet valve is also provided with two electrical contact pins 40 protruding through openings in inlet nozzle 14 and each pin is mounted in a boss ~2 secured to the plate and housing a contact spring 44 located between the head of the contact pin and a tightening screw 46. The vacuum motor M is energized from a suitable sourca o~ voltage V through electrical wires 48 upon short-circuiting of contact pins 40 by means of any electrically conducting portion of the hose implement inserted into inlet nozzle 14. Two guides 50 are mounted on the face of the plate for aligning the current carrying portion of the hose implement with the contact pins 40.
The plate ls also provided with two oval .
63~;6 adjustable mounting screw holes 52 ~or securing the same to the wall of the building.
The inlet valve is preferably made of ABS although it may be made of other suitable plastic material.
Areas 54 on the inside face oi.` door 20 may be used for private brand iden*ification or warnings.
Although the invention has been disclosed with re~erence to a preferred embodiment, it is to be understood that it i8 not limited to such embodiment and that other alternatives are envisaged within the scope of the following claims.
:: :
, '`' -, ~.:
Claims (4)
1. For use with a central vacuum system including a remotely located vacuum motor and a conduit system intercon-necting said vacuum motor to a plurality of vacuum ducts, an inlet valve comprising:
a) a plate adapted to be mounted on a wall adjacent the end of a vacuum duct and having an opening therein with an inlet nozzle extending inwardly from said opening for con-nection to said vacuum duct;
b) a door having a boss across the top edge thereof housing a hinge pin for hingedly mounting the door across the top edge of the plate;
c) a sealing gasket mounted around the opening in the plate and adapted to be engaged by the door for closing the inlet valve when no implement is installed therein;
d) housing means formed by said boss; and e) spring means received in said housing means for biasing the door against the sealing gasket, said spring means being protected from the environment and concealed from view by said housing means when the door is in an open posi-tion.
a) a plate adapted to be mounted on a wall adjacent the end of a vacuum duct and having an opening therein with an inlet nozzle extending inwardly from said opening for con-nection to said vacuum duct;
b) a door having a boss across the top edge thereof housing a hinge pin for hingedly mounting the door across the top edge of the plate;
c) a sealing gasket mounted around the opening in the plate and adapted to be engaged by the door for closing the inlet valve when no implement is installed therein;
d) housing means formed by said boss; and e) spring means received in said housing means for biasing the door against the sealing gasket, said spring means being protected from the environment and concealed from view by said housing means when the door is in an open posi-tion.
2. An inlet valve as defined in Claim 2, wherein said spring means is a helical spring.
3. An inlet valve as defined in Claim 1, wherein a slot is provided in the top edge of the plate and wherein two facing hinge mounts are located in opposing edges of said slot for pivotally mounting both ends of the hinge pin to allow open-ing of the door by a full 180°.
4. An inlet valve as defined in Claim 1, wherein a groove is provided in the body of the plate around the opening in the plate for housing the sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000510354A CA1266356A (en) | 1986-05-29 | 1986-05-29 | Inlet valve for use with a central vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000510354A CA1266356A (en) | 1986-05-29 | 1986-05-29 | Inlet valve for use with a central vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1266356A true CA1266356A (en) | 1990-03-06 |
Family
ID=4133242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000510354A Expired CA1266356A (en) | 1986-05-29 | 1986-05-29 | Inlet valve for use with a central vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1266356A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012343A1 (en) * | 1993-11-05 | 1995-05-11 | Diffusion De Materiel D'aspiration Integree | Suction port for an integrated suction facility |
| US20210244247A1 (en) * | 2020-02-11 | 2021-08-12 | H-P Products, Inc. | Vacuum inlet valve assembly with sliding pins |
-
1986
- 1986-05-29 CA CA000510354A patent/CA1266356A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012343A1 (en) * | 1993-11-05 | 1995-05-11 | Diffusion De Materiel D'aspiration Integree | Suction port for an integrated suction facility |
| FR2712015A1 (en) * | 1993-11-05 | 1995-05-12 | Diffusion Mat Aspiration Integ | Suction mouth for integrated suction system. |
| US20210244247A1 (en) * | 2020-02-11 | 2021-08-12 | H-P Products, Inc. | Vacuum inlet valve assembly with sliding pins |
| US11707174B2 (en) * | 2020-02-11 | 2023-07-25 | H-P Products, Inc. | Vacuum inlet valve assembly with sliding pins |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |