Patent US4415003A successfully refreshed from Google Patents.
US4415003A
Expired / Lapsed
US
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Control of fluid flow using a flexible disc
Assignee: Nypro Inc
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Filing: 1981-08-27
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Granted: 1983-11-15
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Expires: 2001-08-27
Abstract
Abstract Method and apparatus for the control of fluid flow using a flexible disc that is positioned in a control channel and restricted to movement along the longitudinal axis of the channel. Closure control is exercised by moving the disc into closer contact with a ring seat that is essentially self-purging of debris. Since the disc is confined to essentially longitudinal movement, distortion due to random lateral movement is avoided.
Inventors
- 👤 Joseph R. Paradis
- 👤 Edward W. Kaleskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:45
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/141; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/302; B29C66/3022; B29C66/30223; B29C66/50; B29C66/51; B29C66/54; B29C66/541; B29C66/5412; B29L; B29L2031/00; B29L2031/748; B29L2031/7506; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
A flow control device comprising: a housing; a control channel in said housing extending to a flow channel; a flexible disc on a valve seat in said control channel; means for prebiasing said flexible disc comprising a set of prongs for engaging a central portion of said disc and being separated by passageways that extend to said flow channel; and a segmented ring surrounding said flow channel to prevent said flexible disc from overflexing when said device is operated in its open position with flow into said control channel and outwardly through said flow channel.
Claim 2
Dependent Claim
95 words
A flow control device comprising: a housing; a control channel in said housing extending to a flow channel; a flexible disc on a valve seat in said control channel; means for prebiasing said flexible disc comprising a set of prongs for engaging a central portion of said disc and being separated by passageways that extend to said flow channel; and a segmented ring surrounding said flow channel to prevent said flexible disc from overflexing when said device is operated in its open position with flow into said control channel and outwardly through said flow channel.
Claim 3
Dependent Claim
27 words
A control device as defined in claim 1 wherein each prong includes a buttress that slopes away from a peak of the prong towards the base thereof.
Claim 4
Dependent Claim
26 words
A control device as defined in claim 2 wherein the buttress has an angle of approximately 15° with respect to the central axis of said device.
Claim 5
Dependent Claim
25 words
A control device as defined in claim 1 wherein said prong includes a portion that slopes away from the peak thereof towards said control channel.
Claim 6
Dependent Claim
36 words
A control device as defined in claim 1 wherein said housing is in two mating parts, one of which includes a ridge at the mating surfaces of said parts to promote the sealing of said device.
Claim 7
Dependent Claim
23 words
A control device as defined in claim 5 wherein said device is sealed by ultrasonic bonding and said ridge has a triangular cross-section.
Claim 8
Dependent Claim
46 words
A control device as defined in claim 1 wherein one of the channels contains a base that extends to an outlet with a curved shoulder between said outlet and said base to limit the distortion and distension of said disc during the operation of said valve.
References Cited (Backward Citations)
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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) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |