US4076209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved tap
Assignee: KILGARIFF HOLDINGS Pty Ltd
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Filing: 1976-03-25
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Granted: 1978-02-28
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Expires: 1996-03-25
Abstract
Abstract A lever operated tap or cock, the lever actuating a cam to cause a piston to move to open a valve against the action of a spring and the water pressure. The valve is thus manually opened, but the closing of the valve is by spring and water pressure only.
Inventors
- 👤 Thomas A. Kilgariff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:17
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K25/00; F16K31/00; F16K31/44; F16K31/52; F16K31/524; F16K31/52408
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
204 words
A fluid control valve comprising a cylindrical hollow body having an inlet, and an outlet, a cylinder screwed directly into the hollow body and having a bottom defining an aperture surrounded by a valve seat, a valve member closing the aperture by engagement on the seat, said valve member having a stem extending through the aperture, a piston slidable in said cylinder and engaging the stem, spring means acting between the cylinder bottom and the piston, further spring means acting to close the valve member, and cam means for actuating the piston to open the valve, whereby the closure of the valve is by said spring means assisted by fluid pressure and manual effort is applied only to open the valve, said inlet and outlet in the cylindrical body being disposed laterally, said cylindrical body including an upstanding portion extending upwardly beyond said inlet and outlet, said cylinder extending within said upstanding portion to the level of said inlet and outlet, said piston being confined within said cylinder, said cam means penetrating into said cylinder into engagement with said piston and a sleeve mounted on said hollow body above said cylinder for axial adjustable movement relative thereto, said cam being supported by said sleeve.
Claim 2
Dependent Claim
204 words
A fluid control valve comprising a cylindrical hollow body having an inlet, and an outlet, a cylinder screwed directly into the hollow body and having a bottom defining an aperture surrounded by a valve seat, a valve member closing the aperture by engagement on the seat, said valve member having a stem extending through the aperture, a piston slidable in said cylinder and engaging the stem, spring means acting between the cylinder bottom and the piston, further spring means acting to close the valve member, and cam means for actuating the piston to open the valve, whereby the closure of the valve is by said spring means assisted by fluid pressure and manual effort is applied only to open the valve, said inlet and outlet in the cylindrical body being disposed laterally, said cylindrical body including an upstanding portion extending upwardly beyond said inlet and outlet, said cylinder extending within said upstanding portion to the level of said inlet and outlet, said piston being confined within said cylinder, said cam means penetrating into said cylinder into engagement with said piston and a sleeve mounted on said hollow body above said cylinder for axial adjustable movement relative thereto, said cam being supported by said sleeve.
Claim 3
Dependent Claim
58 words
A fluid control valve as defined in claim 1 wherein the cam means comprises a cam toggle mounted on said spherical cam to which a handle is attached, a sleeve being screwed into said hollow body, said cam toggle being mounted in said sleeve, the valve having a casing closing the body and through which the handle protrudes.
Claim 4
Dependent Claim
61 words
A fluid control valve as defined in claim 1 wherein the further spring means to close the valve comprises a spring acting between a button engaging the valve member and a housing having a flange engaging a lip on the body, the cylinder engaging the flange and a sealing washer to seal and locate the housing in position on the lip.
Claim 5
Dependent Claim
73 words
A fluid control valve as defined in claim 1 wherein the cam comprises a cam toggle engaging the piston, the cam having a stem engaging a handle, a sleeve having a bearing to receive the cam, the sleeve being screwed into the body and including a pair of arcuately shaped lugs engaged in a pair of arcuate grooves in the handle, whereby tilting of the handle moves the cam toggle over the piston.
Claim 6
Dependent Claim
51 words
A fluid control valve as defined in claim 4 wherein the handle has a locking piece to retain the stem in position, the sleeve being retained by a locking screw protruding through the body into the sleeve, which screw is exposed only when the handle is tilted to the on position.
Claim 7
Dependent Claim
76 words
A fluid control valve as defined in claim 1 wherein the friction created between the cam and seat by pressure from the spring between the cam and indicator button, determined by the screwing of the casing on to the body of the valve allows the fluid to flow at any rate, and be held in that position by the position of the handle held in place by the aforesaid friction between the cam and its seating.
Claim 8
Dependent Claim
29 words
A fluid control valve as defined in claim 1 wherein said piston has a bottom surface confined within said cylinder engaged by said spring means and by said stem.
Claim 9
Dependent Claim
22 words
A fluid control valve as defined in claim 7 wherein said bottom surface of the piston lies substantially in a horizontal plane.
Claim 10
Dependent Claim
34 words
A fluid control valve as defined in claim 8 wherein said bottom surface of the piston has a central recess receiving said stem of the valve member, and a groove receiving said spring means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |