Inlet valve assembly
First Claim
1. An inlet valve assembly for a central vacuum system to be installed in a wall or floor having a front side, a backside and a mounting hole extending therethrough, said inlet valve assembly comprising:
- a front mounting plate having an inlet tube;
an annular brace adapted to slidably mount on said inlet tube and sized to fit through said mounting hole; and
a plurality of clamping arms pivotally mounted on said brace, said arms being operable to swing from a retracted position alongside said brace to an extended position at said backside.
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Accused Products
Abstract
An inlet valve assembly for a central vacuum system is installed in a wall or floor having a front side, a backside and a mounting hole extending therethrough. This inlet valve assembly includes a front mounting plate having an inlet tube. The assembly also has an annular brace adapted to slidably mount on the inlet tube and sized to fit through the mounting hole. The assembly also has a plurality of clamping arms pivotally mounted on the brace. These arms can swing from a retracted position alongside the brace to an extended position at the backside.
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Citations
47 Claims
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1. An inlet valve assembly for a central vacuum system to be installed in a wall or floor having a front side, a backside and a mounting hole extending therethrough, said inlet valve assembly comprising:
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a front mounting plate having an inlet tube; an annular brace adapted to slidably mount on said inlet tube and sized to fit through said mounting hole; and a plurality of clamping arms pivotally mounted on said brace, said arms being operable to swing from a retracted position alongside said brace to an extended position at said backside. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An inlet valve assembly for a central vacuum system to be installed in a wall or floor having a front side, a backside and a mounting hole extending therethrough, said inlet valve assembly comprising:
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a front mounting plate having an inlet tube; a door pivotally mounted on said front mounting plate to cover said inlet tube, said front mounting plate being adapted to versatilely receive any one of the following; (a) a switching means mounted on the rear of said front mounting plate to engage and be actuated by motion of said door; and (b) a circumferentially spaced pair of tube contact mounted on the rear of said front mounting plate to project from outside to inside said inlet tube. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification