US3158376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure seal
Assignee: Minnesota Rubber and Plastics
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Filing: 1963-05-10
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Granted: 1964-11-24
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 John H Rentschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A SEALING DEVICE COMPRISING A CONTINUOUSLY FORMED RING-LIKE MEMBER MADE OF A RESILIENT FLOWABLE MATERIAL SUCH AS RUBBER THROUGHOUT AND ADAPTED TO BE FITTED INTO A SEALING GROOVE OF RING-LIKE CONFIGURATION, SAID RING-LIKE MEMBER IN ITS FREE FORM HAVING A MAIN BODY PORTION WHICH IS GENERALLY RECTANGULAR IN CROSS-SECTIONAL CONFIGURATION, SAID MEMBER HAVING A PAIR OF AXIALLY SPACED SIDES AND A PAIR OF RADIALLY SPACED SIDES AND, WHEN CONSIDERED CROSSSECTIONALLY, HAVING A PAIR OF ELONGATED CANTILEVERED SEALING ELEMENTS PROJECTING OUTWARDLY FROM ITS SAID MAIN BODY PORTION AT ONE OF ITS SIDES AT ADJACENT CORNERS OF THE RECTANGULAR CROSS-SECTIONAL CONFIGURATION AND HAVING CONVEXLY SHAPED LOBES AT ITS REMAINING CORNERS.
Claim 2
Dependent Claim
108 words
A SEALING DEVICE COMPRISING A CONTINUOUSLY FORMED RING-LIKE MEMBER MADE OF A RESILIENT FLOWABLE MATERIAL SUCH AS RUBBER THROUGHOUT AND ADAPTED TO BE FITTED INTO A SEALING GROOVE OF RING-LIKE CONFIGURATION, SAID RING-LIKE MEMBER IN ITS FREE FORM HAVING A MAIN BODY PORTION WHICH IS GENERALLY RECTANGULAR IN CROSS-SECTIONAL CONFIGURATION, SAID MEMBER HAVING A PAIR OF AXIALLY SPACED SIDES AND A PAIR OF RADIALLY SPACED SIDES AND, WHEN CONSIDERED CROSSSECTIONALLY, HAVING A PAIR OF ELONGATED CANTILEVERED SEALING ELEMENTS PROJECTING OUTWARDLY FROM ITS SAID MAIN BODY PORTION AT ONE OF ITS SIDES AT ADJACENT CORNERS OF THE RECTANGULAR CROSS-SECTIONAL CONFIGURATION AND HAVING CONVEXLY SHAPED LOBES AT ITS REMAINING CORNERS.
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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |