Patent US3153160A successfully refreshed from Google Patents.
US3153160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible seal
Assignee: Centrilift Hughes Inc
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Filing: 1961-02-09
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Granted: 1964-10-13
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Expires: 1981-02-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Carle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:56
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F04D29/128; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/40; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; Y; Y10; Y10S; Y10S277/00; Y10S277/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
IN A SUBMERSIBLE SEAL FOR THE PROTECTION OF AN ELECTRIC MOTOR AND THE LIKE FROM AMBIENT FLUID IN WHICH THE SEAL AND THE MOTOR ARE TO BE SUBMERGED COMPRISING MEANS DEFINING A CHAMBER, LUBRICATING FLUID IN SAID CHAMBER, AMBIENT FLUID IN SAID CHAMBER, MEANS COMMUNICATING SAID CHAMBER WITH SAID MOTOR, A FIRST ROTARY SEAL MEANS, A SECOND ROTARY SEAL MEANS, A THIRD ROTARY SEAL MEANS, SAID FIRST AND SECOND ROTARY SEAL MEANS DEFINING A SECOND CHAMBER, SAID SECOND AND THIRD ROTARY SEAL MEANS DEFINING A THIRD CHAMBER, SAID SECOND CHAMBER AND SAID FIRST AND SECOND ROTARY SEALING MEANS BEING ARRANGED TO TRANSFER AMBIENT FLUID TO SAID FIRST CHAMBER UPON FAILURE OF EITHER OR BOTH OF SAID FIRST OR SECOND ROTARY SEALING MEANS, SAID THIRD CHAMBER AND SAID SECOND AND THIRD ROTARY SEALING MEANS BEING ARRANGED TO TRANSFER AMBIENT FLUID TO SAID FIRST CHAMBER UPON FAILURE OF SAID SECOND ROTARY SEALING MEANS, SAID SECOND AND THIRD CHAMBERS AND SAID FIRST, SECOND AND THIRD SEALING MEANS BEING ARRANGED TO PREVENT AMBIENT FLUID FROM ENTERING SAID MOTOR UNTIL AMBIENT FLUID DISPLACES THE LUBRICATING FLUID IN SAID FIRST CHAMBER, SECOND CHAMBER AND THIRD CHAMBER AND THEN ONLY UPON FAILURE OF SAID THIRD ROTARY SEALING MEANS.
Claim 2
Dependent Claim
201 words
IN A SUBMERSIBLE SEAL FOR THE PROTECTION OF AN ELECTRIC MOTOR AND THE LIKE FROM AMBIENT FLUID IN WHICH THE SEAL AND THE MOTOR ARE TO BE SUBMERGED COMPRISING MEANS DEFINING A CHAMBER, LUBRICATING FLUID IN SAID CHAMBER, AMBIENT FLUID IN SAID CHAMBER, MEANS COMMUNICATING SAID CHAMBER WITH SAID MOTOR, A FIRST ROTARY SEAL MEANS, A SECOND ROTARY SEAL MEANS, A THIRD ROTARY SEAL MEANS, SAID FIRST AND SECOND ROTARY SEAL MEANS DEFINING A SECOND CHAMBER, SAID SECOND AND THIRD ROTARY SEAL MEANS DEFINING A THIRD CHAMBER, SAID SECOND CHAMBER AND SAID FIRST AND SECOND ROTARY SEALING MEANS BEING ARRANGED TO TRANSFER AMBIENT FLUID TO SAID FIRST CHAMBER UPON FAILURE OF EITHER OR BOTH OF SAID FIRST OR SECOND ROTARY SEALING MEANS, SAID THIRD CHAMBER AND SAID SECOND AND THIRD ROTARY SEALING MEANS BEING ARRANGED TO TRANSFER AMBIENT FLUID TO SAID FIRST CHAMBER UPON FAILURE OF SAID SECOND ROTARY SEALING MEANS, SAID SECOND AND THIRD CHAMBERS AND SAID FIRST, SECOND AND THIRD SEALING MEANS BEING ARRANGED TO PREVENT AMBIENT FLUID FROM ENTERING SAID MOTOR UNTIL AMBIENT FLUID DISPLACES THE LUBRICATING FLUID IN SAID FIRST CHAMBER, SECOND CHAMBER AND THIRD CHAMBER AND THEN ONLY UPON FAILURE OF SAID THIRD ROTARY SEALING MEANS.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |