US3896834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves with spring valve members
Assignee: Individual
•
Filing: 1973-10-09
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Granted: 1975-07-29
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Expires: 1993-10-09
Abstract
Abstract The disclosure is that of an invention directed to a valve in which the flow controlling valve element is formed as a coiled spring of suitable configuration so that the coils thereof, when in mutual contact, prevent fluid flow and, when separated by distension in an axial direction, permit fluid to flow through the spaces therebetween. The spring valve element may be either normally open or normally closed as when formed as a tubular or frusto-conical compression or tension spring or may be formed as a normally closed flat spirally or convolutely wound spring in which the spirals or convolutions thereof are in mutual contact.
Inventors
- 👤 Jr Herman L Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:51
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/40; Y; Y10; Y10S; Y10S251/00; Y10S251/902; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
A valve including, a body provided with an internal cavity, inlet and outlet passages extending from the exterior of said body into communication with said internal cavity, a valve element located within said internal cavity for controlling fluid flow from one of said passages to the other thereof, said internal cavity including a portion of inverted frusto-conical configuration adjacent to and in alignment with one of said passages for receiving said valve element, said valve element comprising a coiled spring of frusto-conical configuration complementary to the frusto-conical portion of said internal cavity when the coils of said spring are in a mutually contacting condition, and means operable from without said body and extending into said internal cavity for operating upon said coiled spring valve element in an axial direction whereby to cause the coils thereof to be brought into or out of mutually contacting relation.
Claim 2
Dependent Claim
145 words
A valve including, a body provided with an internal cavity, inlet and outlet passages extending from the exterior of said body into communication with said internal cavity, a valve element located within said internal cavity for controlling fluid flow from one of said passages to the other thereof, said internal cavity including a portion of inverted frusto-conical configuration adjacent to and in alignment with one of said passages for receiving said valve element, said valve element comprising a coiled spring of frusto-conical configuration complementary to the frusto-conical portion of said internal cavity when the coils of said spring are in a mutually contacting condition, and means operable from without said body and extending into said internal cavity for operating upon said coiled spring valve element in an axial direction whereby to cause the coils thereof to be brought into or out of mutually contacting relation.
Claim 3
Dependent Claim
25 words
The valve of claim 1 in which said frusto-conical coiled spring valve element is a compression spring having its coils in a normally separated condition.
Claim 4
Dependent Claim
26 words
The valve of claim 1 in which said frusto-conical coiled spring valve element is a tension spring having its coils in a normally mutually contacting condition.
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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |