US3889712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: OMNIFIT Ltd A Co OF UK
•
Filing: 1973-11-27
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Granted: 1975-06-17
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Expires: 1993-11-27
Abstract
Abstract Valve comprising a body of synthetic plastics material having one or more connection bores in a first plane. A further bore is located in the body in a transverse plane which extends from one wall of the body and intersects each connection bore. A rigid key is formed with at least one transverse bore for alignment with a connection bore in the body. The key is a compression fit in the transverse bore in the body.
Inventors
- 👤 Robert E Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:23
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K27/00; F16K27/02; F16K27/0263; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
A valve comprising: a body constructed of a synthetic plastic material having at least one connection bore in a first plane and a further bore in a transverse plane which extends from at least one wall of the body and intersects each connection bore; and a key fabricated of a material harder than the body and formed with at least one transverse bore for alignment with one connection bore in the body, said key including a wedged ring section formed thereon and having a knife edge on the ring section, said key being A compression fit in said transverse bore in the body so that the knife edge of said wedge ring section engages the plastic material of said body portion.
Claim 2
Dependent Claim
121 words
A valve comprising: a body constructed of a synthetic plastic material having at least one connection bore in a first plane and a further bore in a transverse plane which extends from at least one wall of the body and intersects each connection bore; and a key fabricated of a material harder than the body and formed with at least one transverse bore for alignment with one connection bore in the body, said key including a wedged ring section formed thereon and having a knife edge on the ring section, said key being A compression fit in said transverse bore in the body so that the knife edge of said wedge ring section engages the plastic material of said body portion.
Claim 3
Dependent Claim
12 words
A valve as claimed in claim 1 wherein the body comprises polytetrafluoroethylene.
Claim 4
Dependent Claim
12 words
A valve as claimed in claim 1 wherein the key comprises metal.
Claim 5
Dependent Claim
34 words
A valve as claimed in claim 1 wherein the body comprises a plurality of connection bores arranged radially to interconnect at a central point, each connection bore having a separate key operatively associated therewith.
Claim 6
Dependent Claim
31 words
A valve as claimed in claim 1 wherein the body comprises a plurality of connection bores arranged radially with a single key arranged at the interconnection point of said connection bores.
Claim 7
Dependent Claim
33 words
A valve as claimed in claim 5 wherein the key is formed with a plurality of transverse bores for providing different interconnections of said connection bores for different rotational positions of the key.
Claim 8
Dependent Claim
58 words
A valve as claimed in claim 6 wherein the body includes three arms, each having a connection bore meeting at a common point in the body and the key is provided at said common point and has a T-section bore for selectively interconnecting the bore in one of said arms with one or other of the remaining bores.
References Cited (Backward Citations)
US2854027A
Cited
US3012752A
Cited
US3185179A
Cited
US3314644A
Cited
US3475002A
Cited
US3512944A
Cited
US3664372A
Cited
US3788599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |