US3116931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure helical worm seal
Assignee: Motors Liquidation Co
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Filing: 1960-12-23
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Granted: 1964-01-07
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 George A Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:49
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/24; F16H25/2418; F16J; F16J15/00; F16J15/54; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18712
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A SEALING DEVICE COMPRISING A POLYMERIC RING ELEMENT HAVING AN INTERNAL HELICAL THREAD OF CONVEX SHAPE ADAPTED TO ENGAGE THE CONCAVE THREAD OF A WORM IN SEALING RELATIONSHIP, A FIRST RING OF ELASTOMERIC MATERIAL IMMEDIATELY SURROUNDING SAID RING ELEMENT OPERABLE FOR FORCING IT INTO SEALING ENGAGEMENT WITH THE WORM THREAD, A SECOND RING OF ELASTOMERIC MATERIAL SURROUNDING SAID FIRST ELASTOMERIC RING, RETAINER MEANS SPACING SAID ELASTOMERIC RINGS, SAID RETAINER MEANS HAVING AN ANNULAR RECESS FOR THE RECEPTION OF SAID FIRST ELASTOMERIC RING AND A CIRCUMJACENT COUNTER RECESS FOR RECEIVING THE OUTER PERIPHERY OF SAID RING ELEMENT TO PREVENT ITS AXIAL DISPLACEMENT, AND MEANS ADJACENT SAID RETAINER MEANS PREVENTING AXIAL DISPLACEMENT THEREOF.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |