Patent US3889712A successfully refreshed from Google Patents.
US3889712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves
Assignee: OMNIFIT Ltd A Co OF UK
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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 08:02
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)
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Cited
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US3185179A
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US3314644A
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Cited
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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 |