CA1267174A - Current carrying inlet valve for central vacuum system - Google Patents
Current carrying inlet valve for central vacuum systemInfo
- Publication number
- CA1267174A CA1267174A CA000502030A CA502030A CA1267174A CA 1267174 A CA1267174 A CA 1267174A CA 000502030 A CA000502030 A CA 000502030A CA 502030 A CA502030 A CA 502030A CA 1267174 A CA1267174 A CA 1267174A
- Authority
- CA
- Canada
- Prior art keywords
- mounting plate
- electrical
- air suction
- inlet
- aperture
- 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
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
- Connector Housings Or Holding Contact Members (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention discloses a current carrying inlet valve for central vacuum system providing tubular elements and connecting fittings with an integral electrical receptacle to permit operation of any electri-cally driven attachments and/or other cleaning devices, specific to the operation of a central vacuum cleaning system, without the necessity of an electrical outlet in close proximity, to which the location of an inlet valve was hereto restricted.
The present invention discloses a current carrying inlet valve for central vacuum system providing tubular elements and connecting fittings with an integral electrical receptacle to permit operation of any electri-cally driven attachments and/or other cleaning devices, specific to the operation of a central vacuum cleaning system, without the necessity of an electrical outlet in close proximity, to which the location of an inlet valve was hereto restricted.
Description
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This invention relates to inlet valves for central vacuum systems and more particularly to current carrying inlet valves.
It is common practise in prior art devices to install central vacuum systems whereby low voltage con-ductor leads are connected at each one of a plurality of vacuum inlet valves and terminating at a remote location of a vacuum power unit. Some of these prior art inlet valves are disclosed in United States patents 3,036,170 to Forney; 3,076,068 to Racklyeft; 4,336,427 to Lindsay; 3,042,765 to Hunt; 3,465,111 to Breslin; and 3,928,715 to Holden.
This arrangement allows the activation and deactivation of a vacuum power unit simply by inserting the metallic nozzle of a vacuum hose into an inlet valve.
The metallic nozzle would contact two low voltage conduc-tors and close the low voltage circuit.
The simultaneous use o electrically activated attachments such as a power brush, required hereto the availability of a nearby 110/115 V receptacle into which the male terminals of an electrical power cord plug would be inserted in order to render an electrically activated attachment operational.
This arrangement limited the installation of 7~
vacuum in]et valves only in close proximi-ty of electrical receptacles, at a distance determined by the length of the 110/115 V current carrying cord as suppliad by the manufacturers of electrically operated attachments and/or other cleaning devices specific to the operation of a central vacuum system.
Hence, electric supply for the operation of these cleaning devices had to be installed by other tra-des, while vacuum inlet valves were installed as separate entities. The latter efforts made no provision for the completion of integrated 110/115 V electrical circuitry in conjunction with the permanently installed central vacuum piping system and a plurality of inlet valve loca-tions.
As a result, pre-designed concepts such as architectural or mechanical designs have to be compro-mised and/or totally altered to facilitate the installa-tion of a central vacuum system. Similarly, time, labour and materials must be independently consumed, as indepen-dent paths for the central vacuum system and for the 110/115 V electrical circuitry must be provided.
There is therefore a requirement for establishing a combination of two coaxial electrical cir-cuits simultaneously with the operation of an air suction system and the operation of electrically drivan attach-ments and/or devices spe~ific to the operation of a ~6~7~
central vacuum systemO
It is therefore an object of the present inven-tion to provide a current carryinq inlet valve face plate incorporating an air suction inlet with low voltage ther-mostat connectors to remotely activate and deactivate a central vacuum power unit and an electrical power recep-tacle for the operation of electrically driven attach-ments and/or devices specific to the operation of a central vacuum system.
Another object of the present invention is to provide a mounting plate for a current carrying inlet face plate and having a tubular fitting element in a com-posite O-ring which extends around the entire peripheral surface of the tubular element. The mounting plate also includes an aperture to allow passage of electrical wiring to an electrical power receptable on the current carrying inlet face plate.
~ nother object of the present invention is to provide a wiring compartment having a curvilinear con-cavity to allow the securing of tubular fittings by means of which access to the air suction piping system is achieved.
Accordingly, this invention provid~s a current carrying inlet valve for central vacuum system comprising in combination: a) an inlet face plate having an air suction inlet contiguous to an electrical receptacle, .
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said air suction inlet consisting of a tubular fitting element forming a female hub on one end and a male spigot on the distal end and having low voltage electrical con-tact elements protruding rom the peripheral interior surface thereof, said electrical receptacle having female openings to receive an electrical plug-type connector while the distal side provides connector lugs to facili-tate securing of electrical leads, and a hinged door having sealing means to protect said electrical rPcep-tacle and seal said air suction inlet; b) a mounting plate having a tubular itting element forming a peripherally engageable female hub on one side and a peripherally engageable male spigot at the distal end thereof, a composite O-ring extends annularly on the interior peripheral surface of said tubular portion forming an airtight seal ~hen contiguous elements are axially inserted therein, an aperture to permit electri-cal conductors to connect to said connector lugs, and a protective edge around said mounting plate to enclose said aperture and tubular fitting element when said mounting plate receives said face plate; c) a wiring compartment for receiving electrical leads from a source, enyageable to said mounting plate and having one side with a curvilinear concavity to allow securing of tubular fitting of air suction piping system and wherein electri-cal conductors from said compartment pass through the '., ~ ' -aperture of said mounting plate and termina-te at said connector lugs of said electrical receptacle.
Particular embodiments of the invention will be understood in conjunction with the accompanying drawings in which:
Figure 1 is an exploded view of the current carrying inlet valve used in the present invention;
Figure 2 is another exploded view thereof.
Referring now to Figure 1 we have shown the three basic parts or components of the current carrying inlet valve used in the present invention. It is comprised of a face plate 10 a mounting plate Ll and a wiring compartment 12. Face plate 10 includes a rec-tangular body 13 having an air suction inlet 14, electri-cal power receptacle 15 with two Eemale connectors 16. A
hinged door 17 shown in the open position, is retained in place with a metal shaft 18 and a torsion spring 19.
Door 17 protects the electrical power receptacle 15 and seals the annular seal rim of air suction inlet 14 with a sealing gasket 20a secured to the inside of the hinged door 17 by means of a press-fitted push-nut 20b. The air suction inlet 14 consists of a tubular fitting element forming a female hub on the front part of the ~ace plate and extends back to form a male spigot 21. ~ir suction inlet 14 embodies two spring loaded low voltage conduc-tors 22 terminating and two screw-type contact terminals ~67~74 23 pro-truding at the rear of face plate L0. Low voltage leads 24 are connected to these terminals. From there, the connecting low voltage wire 25 extend along the entire pipe run, terminating at the power unit, thereby completing a low voltage circuit ~not shown). By inser-tion oE a metallic vacuum hose nozzle, low voltage con-ductors 22 will make contact, close the low voltage circuit and thereby activate the vacuum power unit. The electrical power receptacle shown at 15 uses a 110/115 V
capacity receptacle. The current carrying inlet face plate can also be adapted to use the ~uropean standard 220 V power receptacle. It will be understood by those knowledgeble in this art that the power receptacle need not be limited to any North American or European size receptacle.
The perspective exploded view of Figure 1 depicts ~he inlet valve 10 in a position to be axially telescoped in the hub 26 of mounting plate 11, wherein the male spigot 21, protruding from the rear of the face plate 10, seats itself onto the composite O-ring 27 which extends annularly on the interior peripheral surface of the tubular hub 26. The composite O-ring 27 is peripherally held in place in an annular retaining groove in the interior of the mounting plate hub 26, effecting an airtight seal. Inlet face plate 10 can embody the electrical power receptacle 15 as an integral part of the - '' ' `
.
~67~
~ace plate 10. In this instance, the 110/115 V recep-tacle 15 protrudes at 28 through to the rear of the face plate 10 to allow connector logs 29 to secure electrical power lead~ 30. Hence, by connecting 110/115 V leads 30 to connector lugs 29, a separate 110/115 V circuit is established, facilitating simultaneous use of 110/115 V
power source in conjunction with a low voltage circuit.
~wo recessed mounting screw holes 31 are centered respec-tively along the top and bottom of the face plate 10 of the inlet valvel to facilitate permanent attachment through a wall material and into the screw bosses 32 of mounting plate 11.
Mounting plate 11 includes a tubular fitting element 26 forming a peripherally engageable ~emale hub on the front side of plate 11 and a peripherally enga-geable male spigot on the rear side thereof. An aperture 33 permits electrical conductors 30 to be secured to con-nector lugs 29. A protruding edge 34 is disposed around the area defined by the mounting plate 11 to enclose aperture 33 tubular fitting element 26 and screw mounting holes 32. The protruding edge 34 protects the electrical wiring as well as other components when a gyproc wall is positioned over the mounting plate 11. A wide securing side-edge 35 is provided in order to secure mounting plate 11 to a wall ~oist when for example the current carrying lead valve is installed during construction of a ~2~7~4 house or building. Mounting plate 22 has been specifi-cally designed to permit removal of the securing side-edge. Removal o-f the securing side-edge 35 is achieved by running a sharp bladed knife along the protruding edge 34, using the protruding edge as a cutting guide, and twisting the side-edge off. This feature is necessary for installation of parts 11 and 12 into -Einished construction, i.e. where the wall covering has already been installed, such as in older bui~dings. Furthermore, while the wiring compartmen~ 12 requires only two screws 36, mounting plate 11 embodies four screw bosses 41a and 41b for attachment o the wiring compartment 12, one in each corner of the protruding edge 34. Should construc-tion of any one building require the securing side-edge 35 to be reversed to the right side o~ the assembly, the mounting plate 11 can simply be turned so that securing side-edge 35 will be to the right side. The bottom screw bosses 41a for attachment of the wiring compartment 12, will now be along the top, permitting fastening of the wiring compartment in the same manner as described pre-viously.
The wiring compartment 12 is mounted by two screws 36 to the rear of the mounting plate 11 to form a tight it. An annular opening in the upper surace of the wiring compartment 37 provides entry for the 110/115 V conductors 38 through an approved entry connec--'~
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tor 39. The 110/115 V conductors 38 thus enter the wiring compartment 1~ and extends -through the aperture 33 of mounting plate 11 and terminates at the electric 110/115 V receptacle 28 at the rear oE the inlet valve face plate 10.
The curvilinear concavity 40 at the bottom of the wiring compartment 12 affords the securing of tubular fittings, as denoted by a phantom line 41, by means of which access to the air suction piping system is achieved.
As will be apparent to those skilled in the art in light of the foregoing disclosure, many alterations and modifications are possible in the practise of this invention without departinq from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the ollowing claims.
This invention relates to inlet valves for central vacuum systems and more particularly to current carrying inlet valves.
It is common practise in prior art devices to install central vacuum systems whereby low voltage con-ductor leads are connected at each one of a plurality of vacuum inlet valves and terminating at a remote location of a vacuum power unit. Some of these prior art inlet valves are disclosed in United States patents 3,036,170 to Forney; 3,076,068 to Racklyeft; 4,336,427 to Lindsay; 3,042,765 to Hunt; 3,465,111 to Breslin; and 3,928,715 to Holden.
This arrangement allows the activation and deactivation of a vacuum power unit simply by inserting the metallic nozzle of a vacuum hose into an inlet valve.
The metallic nozzle would contact two low voltage conduc-tors and close the low voltage circuit.
The simultaneous use o electrically activated attachments such as a power brush, required hereto the availability of a nearby 110/115 V receptacle into which the male terminals of an electrical power cord plug would be inserted in order to render an electrically activated attachment operational.
This arrangement limited the installation of 7~
vacuum in]et valves only in close proximi-ty of electrical receptacles, at a distance determined by the length of the 110/115 V current carrying cord as suppliad by the manufacturers of electrically operated attachments and/or other cleaning devices specific to the operation of a central vacuum system.
Hence, electric supply for the operation of these cleaning devices had to be installed by other tra-des, while vacuum inlet valves were installed as separate entities. The latter efforts made no provision for the completion of integrated 110/115 V electrical circuitry in conjunction with the permanently installed central vacuum piping system and a plurality of inlet valve loca-tions.
As a result, pre-designed concepts such as architectural or mechanical designs have to be compro-mised and/or totally altered to facilitate the installa-tion of a central vacuum system. Similarly, time, labour and materials must be independently consumed, as indepen-dent paths for the central vacuum system and for the 110/115 V electrical circuitry must be provided.
There is therefore a requirement for establishing a combination of two coaxial electrical cir-cuits simultaneously with the operation of an air suction system and the operation of electrically drivan attach-ments and/or devices spe~ific to the operation of a ~6~7~
central vacuum systemO
It is therefore an object of the present inven-tion to provide a current carryinq inlet valve face plate incorporating an air suction inlet with low voltage ther-mostat connectors to remotely activate and deactivate a central vacuum power unit and an electrical power recep-tacle for the operation of electrically driven attach-ments and/or devices specific to the operation of a central vacuum system.
Another object of the present invention is to provide a mounting plate for a current carrying inlet face plate and having a tubular fitting element in a com-posite O-ring which extends around the entire peripheral surface of the tubular element. The mounting plate also includes an aperture to allow passage of electrical wiring to an electrical power receptable on the current carrying inlet face plate.
~ nother object of the present invention is to provide a wiring compartment having a curvilinear con-cavity to allow the securing of tubular fittings by means of which access to the air suction piping system is achieved.
Accordingly, this invention provid~s a current carrying inlet valve for central vacuum system comprising in combination: a) an inlet face plate having an air suction inlet contiguous to an electrical receptacle, .
~, ~
7~7~
said air suction inlet consisting of a tubular fitting element forming a female hub on one end and a male spigot on the distal end and having low voltage electrical con-tact elements protruding rom the peripheral interior surface thereof, said electrical receptacle having female openings to receive an electrical plug-type connector while the distal side provides connector lugs to facili-tate securing of electrical leads, and a hinged door having sealing means to protect said electrical rPcep-tacle and seal said air suction inlet; b) a mounting plate having a tubular itting element forming a peripherally engageable female hub on one side and a peripherally engageable male spigot at the distal end thereof, a composite O-ring extends annularly on the interior peripheral surface of said tubular portion forming an airtight seal ~hen contiguous elements are axially inserted therein, an aperture to permit electri-cal conductors to connect to said connector lugs, and a protective edge around said mounting plate to enclose said aperture and tubular fitting element when said mounting plate receives said face plate; c) a wiring compartment for receiving electrical leads from a source, enyageable to said mounting plate and having one side with a curvilinear concavity to allow securing of tubular fitting of air suction piping system and wherein electri-cal conductors from said compartment pass through the '., ~ ' -aperture of said mounting plate and termina-te at said connector lugs of said electrical receptacle.
Particular embodiments of the invention will be understood in conjunction with the accompanying drawings in which:
Figure 1 is an exploded view of the current carrying inlet valve used in the present invention;
Figure 2 is another exploded view thereof.
Referring now to Figure 1 we have shown the three basic parts or components of the current carrying inlet valve used in the present invention. It is comprised of a face plate 10 a mounting plate Ll and a wiring compartment 12. Face plate 10 includes a rec-tangular body 13 having an air suction inlet 14, electri-cal power receptacle 15 with two Eemale connectors 16. A
hinged door 17 shown in the open position, is retained in place with a metal shaft 18 and a torsion spring 19.
Door 17 protects the electrical power receptacle 15 and seals the annular seal rim of air suction inlet 14 with a sealing gasket 20a secured to the inside of the hinged door 17 by means of a press-fitted push-nut 20b. The air suction inlet 14 consists of a tubular fitting element forming a female hub on the front part of the ~ace plate and extends back to form a male spigot 21. ~ir suction inlet 14 embodies two spring loaded low voltage conduc-tors 22 terminating and two screw-type contact terminals ~67~74 23 pro-truding at the rear of face plate L0. Low voltage leads 24 are connected to these terminals. From there, the connecting low voltage wire 25 extend along the entire pipe run, terminating at the power unit, thereby completing a low voltage circuit ~not shown). By inser-tion oE a metallic vacuum hose nozzle, low voltage con-ductors 22 will make contact, close the low voltage circuit and thereby activate the vacuum power unit. The electrical power receptacle shown at 15 uses a 110/115 V
capacity receptacle. The current carrying inlet face plate can also be adapted to use the ~uropean standard 220 V power receptacle. It will be understood by those knowledgeble in this art that the power receptacle need not be limited to any North American or European size receptacle.
The perspective exploded view of Figure 1 depicts ~he inlet valve 10 in a position to be axially telescoped in the hub 26 of mounting plate 11, wherein the male spigot 21, protruding from the rear of the face plate 10, seats itself onto the composite O-ring 27 which extends annularly on the interior peripheral surface of the tubular hub 26. The composite O-ring 27 is peripherally held in place in an annular retaining groove in the interior of the mounting plate hub 26, effecting an airtight seal. Inlet face plate 10 can embody the electrical power receptacle 15 as an integral part of the - '' ' `
.
~67~
~ace plate 10. In this instance, the 110/115 V recep-tacle 15 protrudes at 28 through to the rear of the face plate 10 to allow connector logs 29 to secure electrical power lead~ 30. Hence, by connecting 110/115 V leads 30 to connector lugs 29, a separate 110/115 V circuit is established, facilitating simultaneous use of 110/115 V
power source in conjunction with a low voltage circuit.
~wo recessed mounting screw holes 31 are centered respec-tively along the top and bottom of the face plate 10 of the inlet valvel to facilitate permanent attachment through a wall material and into the screw bosses 32 of mounting plate 11.
Mounting plate 11 includes a tubular fitting element 26 forming a peripherally engageable ~emale hub on the front side of plate 11 and a peripherally enga-geable male spigot on the rear side thereof. An aperture 33 permits electrical conductors 30 to be secured to con-nector lugs 29. A protruding edge 34 is disposed around the area defined by the mounting plate 11 to enclose aperture 33 tubular fitting element 26 and screw mounting holes 32. The protruding edge 34 protects the electrical wiring as well as other components when a gyproc wall is positioned over the mounting plate 11. A wide securing side-edge 35 is provided in order to secure mounting plate 11 to a wall ~oist when for example the current carrying lead valve is installed during construction of a ~2~7~4 house or building. Mounting plate 22 has been specifi-cally designed to permit removal of the securing side-edge. Removal o-f the securing side-edge 35 is achieved by running a sharp bladed knife along the protruding edge 34, using the protruding edge as a cutting guide, and twisting the side-edge off. This feature is necessary for installation of parts 11 and 12 into -Einished construction, i.e. where the wall covering has already been installed, such as in older bui~dings. Furthermore, while the wiring compartmen~ 12 requires only two screws 36, mounting plate 11 embodies four screw bosses 41a and 41b for attachment o the wiring compartment 12, one in each corner of the protruding edge 34. Should construc-tion of any one building require the securing side-edge 35 to be reversed to the right side o~ the assembly, the mounting plate 11 can simply be turned so that securing side-edge 35 will be to the right side. The bottom screw bosses 41a for attachment of the wiring compartment 12, will now be along the top, permitting fastening of the wiring compartment in the same manner as described pre-viously.
The wiring compartment 12 is mounted by two screws 36 to the rear of the mounting plate 11 to form a tight it. An annular opening in the upper surace of the wiring compartment 37 provides entry for the 110/115 V conductors 38 through an approved entry connec--'~
i717~
tor 39. The 110/115 V conductors 38 thus enter the wiring compartment 1~ and extends -through the aperture 33 of mounting plate 11 and terminates at the electric 110/115 V receptacle 28 at the rear oE the inlet valve face plate 10.
The curvilinear concavity 40 at the bottom of the wiring compartment 12 affords the securing of tubular fittings, as denoted by a phantom line 41, by means of which access to the air suction piping system is achieved.
As will be apparent to those skilled in the art in light of the foregoing disclosure, many alterations and modifications are possible in the practise of this invention without departinq from the spirit or scope thereof. Accordingly, the scope of the invention is to be construed in accordance with the substance defined by the ollowing claims.
Claims (11)
1. The current carrying inlet valve for central vacuum system comprising in combination:
a) first an inlet face plate having an air suction inlet contiguous to an electrical receptacle, said air suction inlet consisting of a tubular fitting element forming a female hub on one end and a male spigot on the distal end and having low voltage electrical con-tact elements protruding from the peripheral interior surface thereof, said electrical receptacle having female openings to receive an electrical plug-type connector while the distal side provides connector lugs to facili-tate securing of electrical leads, and a hinged door having sealing means to protect said electrical recep-tacle and seal said air suction inlet;
b) a mounting plate having a tubular fitting element forming a peripherally engageable female hub on one side and a peripherally engageable male spigot at the distal end thereof, a composite o-ring extends annularly on the interior peripheral surface of said tubular por-tion forming an airtight seal when contiguous elements are axially inserted therein, an aperture to permit electrical conductors to connect to said connector lugs, and a protective edge around said mounting plate to enclose said aperture and tubular fitting element when said mounting plate receives said face plate;
c) a wiring compartment for receiving electrical leads from a source, engageable to said mounting plate and having one side with a curvilinear concavity to allow securing of tubular fitting of air suction piping system and wherein electrical conductors from said compartment pass through the aperture of said mounting plate and terminate at said connector logs of said electrical receptacle.
a) first an inlet face plate having an air suction inlet contiguous to an electrical receptacle, said air suction inlet consisting of a tubular fitting element forming a female hub on one end and a male spigot on the distal end and having low voltage electrical con-tact elements protruding from the peripheral interior surface thereof, said electrical receptacle having female openings to receive an electrical plug-type connector while the distal side provides connector lugs to facili-tate securing of electrical leads, and a hinged door having sealing means to protect said electrical recep-tacle and seal said air suction inlet;
b) a mounting plate having a tubular fitting element forming a peripherally engageable female hub on one side and a peripherally engageable male spigot at the distal end thereof, a composite o-ring extends annularly on the interior peripheral surface of said tubular por-tion forming an airtight seal when contiguous elements are axially inserted therein, an aperture to permit electrical conductors to connect to said connector lugs, and a protective edge around said mounting plate to enclose said aperture and tubular fitting element when said mounting plate receives said face plate;
c) a wiring compartment for receiving electrical leads from a source, engageable to said mounting plate and having one side with a curvilinear concavity to allow securing of tubular fitting of air suction piping system and wherein electrical conductors from said compartment pass through the aperture of said mounting plate and terminate at said connector logs of said electrical receptacle.
2. An inlet face plate for use with a current carrying inlet valve in a central vacuum system comprising:
an air suction inlet consisting of a tubular fitting element forming a female hub on one end and a male spigot on the distal end and having low voltage electrical contact elements protruding from the peripheral interior surface thereof;
an electrical receptacle contiguous to said air suction inlet and having female openings to receive an electrical plug-type connector while the distal side pro-vides connector lugs to facilitate securing of electrical leads; and a hinged door having sealing means to protect said electrical receptacle and seal said air suction inlet.
an air suction inlet consisting of a tubular fitting element forming a female hub on one end and a male spigot on the distal end and having low voltage electrical contact elements protruding from the peripheral interior surface thereof;
an electrical receptacle contiguous to said air suction inlet and having female openings to receive an electrical plug-type connector while the distal side pro-vides connector lugs to facilitate securing of electrical leads; and a hinged door having sealing means to protect said electrical receptacle and seal said air suction inlet.
3. A mounting plate for use in conjunction with an inlet face plate having an air suction inlet con-tiguous to an electrical receptacle comprising:
a tubular fitting element forming a peripherally engageable female hub on one side and a peripherally engageable male spigot at the distal end thereof;
a composite O-ring extending annularly on the interior peripheral surface of said tubular portion and forming an airtight seal when contiguous elements are axially inserted therein;
an aperture to permit electrical conductors from a source to connect to connector lugs of said electrical receptacle; and a protective edge around said mounting plate to enclose said aperture and tubular fitting element when said mounting plate receives said inlet face plate, and a side edge disposed on one side of said mounting plate to permit the securing of said mounting plate.
a tubular fitting element forming a peripherally engageable female hub on one side and a peripherally engageable male spigot at the distal end thereof;
a composite O-ring extending annularly on the interior peripheral surface of said tubular portion and forming an airtight seal when contiguous elements are axially inserted therein;
an aperture to permit electrical conductors from a source to connect to connector lugs of said electrical receptacle; and a protective edge around said mounting plate to enclose said aperture and tubular fitting element when said mounting plate receives said inlet face plate, and a side edge disposed on one side of said mounting plate to permit the securing of said mounting plate.
4. A wiring compartment for use with a mounting plate having a tubular fitting element and an aperture for electrical conductors, comprising an aper-ture for receiving electrical leads from a source, said compartment being engageable to said mounting plate and having one side with a curvilinear concavity to allow securing of tubular fittings of an air suction piping system and wherein electrical conductors from said com-partment pass through the aperture of said mounting plate and terminate at an electrical receptacle of an inlet face plate.
5. A current carrying inlet valve as defined in claim 1 wherein said air suction inlet and electrical receptacle form an integral part of said inlet face plate.
6. A current carrying inlet valve as defined in claim 1 wherein said electrical receptacle consists of a 110/115 V receptacle.
7. A current carrying inlet valve as defined in claim 1 wherein said mounting plate further includes a side edge disposed on one side for securing said mounting plate to a wall joist.
8. A current carrying inlet valve as defined in claim 1 wherein said wiring compartment includes an aperture at the top of said compartment for receiving electrical leads from a source, said curvilinear con-cavity being located under said wiring compartment.
9. An inlet face plate as defined in claim 2 wherein said air suction inlet and said electrical recep-tacle form an integral part of said inlet face plate.
10. A mounting plate as defined in claim 3 wherein said mounting plate further includes a mounting support on one side to secure said mounting plate to a wall joist.
11. A wiring compartment as defined in claim 4 wherein said wiring compartment includes an aperture at the top of said compartment for receiving electrical leads from a source, said curvilinear concavity being located under said compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000502030A CA1267174A (en) | 1986-02-17 | 1986-02-17 | Current carrying inlet valve for central vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000502030A CA1267174A (en) | 1986-02-17 | 1986-02-17 | Current carrying inlet valve for central vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1267174A true CA1267174A (en) | 1990-03-27 |
Family
ID=4132481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000502030A Expired - Lifetime CA1267174A (en) | 1986-02-17 | 1986-02-17 | Current carrying inlet valve for central vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1267174A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448827A (en) * | 1992-05-20 | 1995-09-12 | Canplas Industries Ltd. | Method of installing an inlet valve assembly for central vacuum system |
| US5578795A (en) * | 1992-05-29 | 1996-11-26 | Canplas Industries Ltd. | Inlet valve assembly for central vacuum system |
| US5938061A (en) * | 1995-09-05 | 1999-08-17 | Canplas Industries Ltd. | Central vacuum inlet mounting plate with removable protector |
| USD416781S (en) | 1995-10-24 | 1999-11-23 | Canplas Industries Ltd. | Inlet valve mounting plate with removable protector |
-
1986
- 1986-02-17 CA CA000502030A patent/CA1267174A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448827A (en) * | 1992-05-20 | 1995-09-12 | Canplas Industries Ltd. | Method of installing an inlet valve assembly for central vacuum system |
| US5578795A (en) * | 1992-05-29 | 1996-11-26 | Canplas Industries Ltd. | Inlet valve assembly for central vacuum system |
| US5886299A (en) * | 1992-05-29 | 1999-03-23 | Canplas Industries, Ltd. | Inlet valve assembly for central vacuum system |
| US5938061A (en) * | 1995-09-05 | 1999-08-17 | Canplas Industries Ltd. | Central vacuum inlet mounting plate with removable protector |
| USD416781S (en) | 1995-10-24 | 1999-11-23 | Canplas Industries Ltd. | Inlet valve mounting plate with removable protector |
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