US3580541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cock
Assignee: Individual
•
Filing: 1970-01-22
•
Granted: 1971-05-25
•
Expires: 1990-01-22
Abstract
Abstract A cock comprising a body, a closure member displaceable within said body so as to establish or interrupt a communication between two orifices formed in opposite relation within said body and in the vicinity of each orifice a seal engaging said closure member. Each seal comprises a tubular ring of polytetrafluoroethylene which is engaged in a recess formed in the body and in fluidtight contact with a packing fitted in the wall of said recess; the tubular ring is provided with a deformable lip applied by a washer in fluidtight contact with the closure member. Owing to this arrangement, the polytetrafluoroethylene lip does not creep and the packing fitted in the wall of the recess is not caused to swell.
Inventors
- 👤 Marcel Bouhot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:36
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/0281
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
107 words
A cock comprising a body, a closure member displaceable within said body so as to establish or interrupt a communication between two orifices formed in opposite relation within said body and in the vicinity of each orifice a seal for cooperating with said closure member, wherein each seal comprises a tubular ring of plastic material such as polytetrafluoroethylene which is engaged in a recess formed in the body and in leak-tight contact with a toric packing fitted in the wall of said recess, said tubular ring being provided with a deformable lip, and a Belleville washer for applying said lip in leak-tight contact with said closure member.
Claim 2
Dependent Claim
107 words
A cock comprising a body, a closure member displaceable within said body so as to establish or interrupt a communication between two orifices formed in opposite relation within said body and in the vicinity of each orifice a seal for cooperating with said closure member, wherein each seal comprises a tubular ring of plastic material such as polytetrafluoroethylene which is engaged in a recess formed in the body and in leak-tight contact with a toric packing fitted in the wall of said recess, said tubular ring being provided with a deformable lip, and a Belleville washer for applying said lip in leak-tight contact with said closure member.
Claim 3
Dependent Claim
38 words
A cock in accordance with claim 1, wherein the deformable lip is directed towards the interior of the tubular ring, the Belleville washer being applied against a tubular member which is fitted within the recess inside the ring.
Claim 4
Dependent Claim
27 words
A cock in accordance with claim 1, wherein the deformable lip extends substantially at right angles with respect to the ring when pressure is not exerted thereon.
Claim 5
Dependent Claim
32 words
A cock in accordance with claim 1, wherein the deformable lip has a substantially constant thickness and such that the plastic material does not creep under the action of the working load.
Claim 6
Dependent Claim
27 words
A cock in accordance with claim 2, wherein the tubular member is applied against the bottom of the recess by means of at least one packing member.
Claim 7
Dependent Claim
24 words
A cock in accordance with claim 1, wherein the tubular ring is provided with an internal groove in the vicinity of the deformable lip.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |