US3288163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiper ring for a fluid system flow interrupting device
Assignee: Grove Valve and Regulator Co
•
Filing: 1963-09-05
•
Granted: 1966-11-29
•
Expires: 1983-09-05
Abstract
No abstract record available.
Inventors
- 👤 Milton H Craven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:39
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/02; B65G51/04; B65G51/08; B65G53/00; B65G53/30; F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673; F16L; F16L55/00; F16L55/26; F16L55/46; G; G01; G01F; G01F25/00; G01F25/10; G01F25/11; G01P; G01P13/00; G01P13/0006; G01P13/0013; G01P13/002; F16K2200/00; F16K2200/40; F16K2200/402; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7848; Y10T137/7849; Y10T137/8593; Y10T137/86493; Y10T137/86831; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN A FLOW OBSTRUCTING DEVICE ADAPTED FOR INSTALLATION IN A FLUID TRANSMISSION LINE AND INCLUDING A HOUSING A FLUID CONDUIT OPENING INTO SAID HOUSING, AND AN INNER MEMBER ROTATABLY MOUNTED IN SAID HOUSING, SAID INNER MEMBER BEING CIRCULAR IN CROSS SECTION IN PLANES PERPENDICULAR TO ITS AXIS OF ROTATION, THE OUTER SURFACE OF SAID INNER MEMBER BEING CONDITIONED TO BLOCK SAID FLUID CONDUIT OPENING IN ONE ROTATIONAL POSITION OF SAID INNER MEMBER, THE COMBINATION THEREWITH OF: AN ANNULAR SUBSTANTIALLY RIGID SEAT RING SLIDABLY CARRIED IN SAID HOUSING AROUND SAID FLUID CONDUIT OPENING, A MAIN RESILIENT SEAL RING CARARIED BY SAID SEAT RING TO SEAL AGAINST A COMPLEMENTARY SEALING OUTER SURFACE ON SAID INNER MEMBER, A SECOND RESILIENT SEAL RING CARRIED BY SAID SEAT RING TO SEAL AGAINST SAID HOUSING, THE DIAMETERS OF SAID MAIN AND SECOND SEAL RINGS BEING RELATED SO AS TO PROVIDE A DIFFERENTIAL IN AREAS EXPOSED TO LINE PRESSURE PRODUCING A FORCE WHICH BIASES SAID SEAT RING INTO SEALING ENGAGEMENT WITH SAID INNER MEMBER, AN ANNULAR RESILIENT WIPER MEMBER MOUNTED ON SAID SEAT RING IN WIPING ENGAGEMENT WITH SAID OUTER SURFACE OF THE INNER MEMBER,
Claim 2
Dependent Claim
188 words
IN A FLOW OBSTRUCTING DEVICE ADAPTED FOR INSTALLATION IN A FLUID TRANSMISSION LINE AND INCLUDING A HOUSING A FLUID CONDUIT OPENING INTO SAID HOUSING, AND AN INNER MEMBER ROTATABLY MOUNTED IN SAID HOUSING, SAID INNER MEMBER BEING CIRCULAR IN CROSS SECTION IN PLANES PERPENDICULAR TO ITS AXIS OF ROTATION, THE OUTER SURFACE OF SAID INNER MEMBER BEING CONDITIONED TO BLOCK SAID FLUID CONDUIT OPENING IN ONE ROTATIONAL POSITION OF SAID INNER MEMBER, THE COMBINATION THEREWITH OF: AN ANNULAR SUBSTANTIALLY RIGID SEAT RING SLIDABLY CARRIED IN SAID HOUSING AROUND SAID FLUID CONDUIT OPENING, A MAIN RESILIENT SEAL RING CARARIED BY SAID SEAT RING TO SEAL AGAINST A COMPLEMENTARY SEALING OUTER SURFACE ON SAID INNER MEMBER, A SECOND RESILIENT SEAL RING CARRIED BY SAID SEAT RING TO SEAL AGAINST SAID HOUSING, THE DIAMETERS OF SAID MAIN AND SECOND SEAL RINGS BEING RELATED SO AS TO PROVIDE A DIFFERENTIAL IN AREAS EXPOSED TO LINE PRESSURE PRODUCING A FORCE WHICH BIASES SAID SEAT RING INTO SEALING ENGAGEMENT WITH SAID INNER MEMBER, AN ANNULAR RESILIENT WIPER MEMBER MOUNTED ON SAID SEAT RING IN WIPING ENGAGEMENT WITH SAID OUTER SURFACE OF THE INNER MEMBER,
References Cited (Backward Citations)
US2138446A
Cited
US1788358A
Cited
US2213998A
Cited
US2606740A
Cited
US2497448A
Cited
US2516947A
Cited
US2866213A
Cited
US2991043A
Cited
US3144040A
Cited
US3002525A
Cited
US3077902A
Cited
US3186014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |