Patent US3147013A successfully refreshed from Google Patents.
US3147013A
Expired / Lapsed
US
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Dry gas seal
Assignee: Borg Warner Corp
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Filing: 1961-02-10
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Granted: 1964-09-01
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Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Tracy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:13
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412; F16J15/3416; F16J15/342; F16J15/3432
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A SEAL ASSEMBLY FOR HANDLING FLUIDS UNDER PRESSURE THE COMBINATION COMPRISING A HOUSING HAVING A ROTATABLE SHAFT EXTENDING THERETHROUGH; SEALING MEANS IN SAID HOUSING AND SURROUNDING SAID SHAFT, ONE OF SAID SEALING MEANS BEING ARRANGED TO ROTATE WITH THE SHAFT AND THE OTHER OF SAID SEALING MEANS BEING MOUNTED FOR SLIDABLE NONROTATABLE MOVEMENT RELATIVE THERETO; MEANS URGING SAID SEALING MEANS INTO FACE-TO-FACE RELATION, FLUID INLET MEANS IN SAID OTHER SEALING MEANS ARRANGED TO RECEIVE PRESSURE FLUID WITHIN THE HOUSING, AND FLUID OUTLET MEANS IN THE ONE SAID SEALING MEANS AND IN CLOSE PROXIMITY TO THE SEALING FACE OF SAID ONE SEALING MEANS, AND INTERCOMMUNICATING MEANS IN THE SURFACES OF SAID SEALING MEANS PROVIDING FOR FLUID COMMUNICATION THEREBETWEEN WHEREBY THE FLUID EMITTED FROM THE FLUID OUTLET MEANS IN SAID ONE SEALING MEANS SERVES AS AN IMPELLER WHILE A PORTION OF THE FLUID IS TRAPPED BETWEEN THE SURFACES OF THE SEALING MEANS AND FORMS A CUSHION TO REDUCE WEAR THEREOF.
Claim 2
Dependent Claim
159 words
IN A SEAL ASSEMBLY FOR HANDLING FLUIDS UNDER PRESSURE THE COMBINATION COMPRISING A HOUSING HAVING A ROTATABLE SHAFT EXTENDING THERETHROUGH; SEALING MEANS IN SAID HOUSING AND SURROUNDING SAID SHAFT, ONE OF SAID SEALING MEANS BEING ARRANGED TO ROTATE WITH THE SHAFT AND THE OTHER OF SAID SEALING MEANS BEING MOUNTED FOR SLIDABLE NONROTATABLE MOVEMENT RELATIVE THERETO; MEANS URGING SAID SEALING MEANS INTO FACE-TO-FACE RELATION, FLUID INLET MEANS IN SAID OTHER SEALING MEANS ARRANGED TO RECEIVE PRESSURE FLUID WITHIN THE HOUSING, AND FLUID OUTLET MEANS IN THE ONE SAID SEALING MEANS AND IN CLOSE PROXIMITY TO THE SEALING FACE OF SAID ONE SEALING MEANS, AND INTERCOMMUNICATING MEANS IN THE SURFACES OF SAID SEALING MEANS PROVIDING FOR FLUID COMMUNICATION THEREBETWEEN WHEREBY THE FLUID EMITTED FROM THE FLUID OUTLET MEANS IN SAID ONE SEALING MEANS SERVES AS AN IMPELLER WHILE A PORTION OF THE FLUID IS TRAPPED BETWEEN THE SURFACES OF THE SEALING MEANS AND FORMS A CUSHION TO REDUCE WEAR THEREOF.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |