Patent US3621882A successfully refreshed from Google Patents.
US3621882A
Expired / Lapsed
US
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Inline, through-flow pressure compensator and accumulator
Assignee: Individual
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Filing: 1970-02-25
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Granted: 1971-11-23
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Expires: 1990-02-25
Abstract
Abstract The pressure compensator and accumulator comprises a casing having ports at opposite ends. A hermetically sealed air chamber means of elastomeric material is loosely housed within the casing. The device is serially inserted in the flow line by connecting one port to an open end of the flow line, and connecting the adjacent open end of the flow line to the opposite port, whereby flow takes place through the casing from one port through the opposite port. Means are provided to prevent the blocking of the outlet port by the air chamber means when the means moves toward the outlet port under the influence of the flow.
Inventors
- 👤 Harry P Kupiec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:40
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; F16L55/054
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
An inline through-flow pressure compensator comprising a closed symmetrical casing having even interior surfaces, inlet and outlet port means at opposite ends, respectively, of the casing providing a flow path between ends of a flow line and thereby connect said casing serially into the flow line, a detachable, hermetically sealed, generally spherical air chamber means fitted loosely within said casing between said port means, said air chamber means formed of flexible and resilient material, said outlet port means being located offset from the axis of symmetry of said casing thereby preventing said air chamber means from seating and closing the offset outlet port means when the air chamber means is moved toward the outlet end.
Claim 2
Dependent Claim
115 words
An inline through-flow pressure compensator comprising a closed symmetrical casing having even interior surfaces, inlet and outlet port means at opposite ends, respectively, of the casing providing a flow path between ends of a flow line and thereby connect said casing serially into the flow line, a detachable, hermetically sealed, generally spherical air chamber means fitted loosely within said casing between said port means, said air chamber means formed of flexible and resilient material, said outlet port means being located offset from the axis of symmetry of said casing thereby preventing said air chamber means from seating and closing the offset outlet port means when the air chamber means is moved toward the outlet end.
Claim 3
Dependent Claim
51 words
The pressure compensator of claim 1 wherein the casing comprises a hollow body and an end closure secured thereto to form an end wall of the closed casing, said offset outlet port being located in said end closure, and wherein said air chamber means comprises a hollow sphere of elastomeric material.
Claim 4
Dependent Claim
40 words
The pressure compensator of claim 2 wherein the inlet port means at the opposite end of the casing is located offset from the axis of symmetry of said casing on the end wall of the casing opposite said end closure.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |