Patent US1130597A successfully refreshed from Google Patents.
US3141677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low leakage mechanical seal for high pressure pumps
Assignee: Studebaker Worthington Inc
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Filing: 1960-11-28
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Granted: 1964-07-21
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 John G Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F04D29/128; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412; F16J15/342; Y; Y10; Y10S; Y10S277/00; Y10S277/928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A SEALING ASSEMBLY FOR SEALING A HIGH PRESSURE FLUID IN A HIGH PRESSURE FLUID ROTATING MACHINE HAVING A SHAFT JOURNALED IN A HOUSING COMPRISING: (A) A CHAMBER MEANS FORMED IN THE HOUSING, (B) A CYLINDRICAL MEANS HAVING ONE END THEREOF CONNECTED TO THE HOUSING AND SAID MEANS TO DIVIDE THE CHAMBER MEANS INTO A SEALING SPACE PORTION AND A PISTON SPACE PORTION, (C) A COLLAR MEANS HAVING ONE END THEREOF CONNECTED TO THE HOUSING AND THE OTHER END THEREOF EXTENDING IN THE DIRECTION OF THE CYLINDRICAL MEANS, (D) A RUNNER MEMBER MOUNTED ON THE SHAFT, (E) A STATOR MEMBER STATIONARILY MOUNTED IN THE HOUSING ON ONE SIDE OF THE RUNNER MEMBER TO COACT WITH THE RUNNER MEMBER TO FORM A FLUID FILM THEREBETWEEN, WHEREBY THE HIGH PRESSURE FLUID IS BROKEN DOWN TO A LOWER PRESSURE FLUID WHICH MAY PASS TO THE PISTON SPACE PORTION, (F) THE STATOR MEMBER HAVING A NECK PORTION, (G) THE END OF THE CYLINDRICAL MEANS REMOTE FROM THE HOUSING CONNECTION IN OPERATIVELY SEALED ENGAGEMENT WITH ONE SIDE OF THE NECK PORTION OF THE STATOR MEMBER, (H) THE END OF THE COLLAR MEANS REMOTE FROM THE HOUSING CONNECTION IN OPERATIVE SEALED ENGAGEMENT WITH THE OTHER SIDE OF THE NECK PORTION OF THE STATOR MEMBER,
Claim 2
Dependent Claim
207 words
A SEALING ASSEMBLY FOR SEALING A HIGH PRESSURE FLUID IN A HIGH PRESSURE FLUID ROTATING MACHINE HAVING A SHAFT JOURNALED IN A HOUSING COMPRISING: (A) A CHAMBER MEANS FORMED IN THE HOUSING, (B) A CYLINDRICAL MEANS HAVING ONE END THEREOF CONNECTED TO THE HOUSING AND SAID MEANS TO DIVIDE THE CHAMBER MEANS INTO A SEALING SPACE PORTION AND A PISTON SPACE PORTION, (C) A COLLAR MEANS HAVING ONE END THEREOF CONNECTED TO THE HOUSING AND THE OTHER END THEREOF EXTENDING IN THE DIRECTION OF THE CYLINDRICAL MEANS, (D) A RUNNER MEMBER MOUNTED ON THE SHAFT, (E) A STATOR MEMBER STATIONARILY MOUNTED IN THE HOUSING ON ONE SIDE OF THE RUNNER MEMBER TO COACT WITH THE RUNNER MEMBER TO FORM A FLUID FILM THEREBETWEEN, WHEREBY THE HIGH PRESSURE FLUID IS BROKEN DOWN TO A LOWER PRESSURE FLUID WHICH MAY PASS TO THE PISTON SPACE PORTION, (F) THE STATOR MEMBER HAVING A NECK PORTION, (G) THE END OF THE CYLINDRICAL MEANS REMOTE FROM THE HOUSING CONNECTION IN OPERATIVELY SEALED ENGAGEMENT WITH ONE SIDE OF THE NECK PORTION OF THE STATOR MEMBER, (H) THE END OF THE COLLAR MEANS REMOTE FROM THE HOUSING CONNECTION IN OPERATIVE SEALED ENGAGEMENT WITH THE OTHER SIDE OF THE NECK PORTION OF THE STATOR MEMBER,
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |