US3085808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical seal with controlled leakage
Assignee: Worthington Corp
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Filing: 1960-05-17
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Granted: 1963-04-16
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Expires: 1980-05-17
Abstract
No abstract record available.
Inventors
- 👤 John G Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:15
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412; F16J15/3416
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A SEAL FOR LIMITING THE LEAKAGE OF PRESSURE FLUID ACROSS THE SHAFT OF A HIGH PRESSURE ROTATING MACHINE IN A FLUID FILLED HOUSING COMPRISING: (A) A RUNNER MEMBER MOUNTED ON SAID SHAFT, (B) A STATIONARY SEAL MEANS STATIONARILY MOUNTED IN SAID HOUSING TO COACT WITH SAID RUNNER MEMBER TO FORM A FLUID FILM THEREBETWEEN AND ADAPTED TO BE AXIALLY DISPLACED AND TO HAVE A SWIVELABLE MOVEMENT IN A PLANE TRANSVERSE TO THE AXIS OF SAID SHAFT WHEREBY ON ROTATION OF SAID SHAFT SAID STATIONARY SEAL MEANS WILL SWIVEL CORRESPONDING TO THE RUNOUT OF SAID RUNNER MEMBER, (C) A PISTON MEMBER OPERATIVELY ASSOCIATED WITH SAID STATIONARY SEAL MEANS AND HAVING LOW PRESSURE FLUID ACTING THEREON TO BALANCE THE RESULTANT PRESSURE OF THE FLUID FILM ACTING ON SAID STATIONARY SEAL MEANS,
Claim 2
Dependent Claim
129 words
A SEAL FOR LIMITING THE LEAKAGE OF PRESSURE FLUID ACROSS THE SHAFT OF A HIGH PRESSURE ROTATING MACHINE IN A FLUID FILLED HOUSING COMPRISING: (A) A RUNNER MEMBER MOUNTED ON SAID SHAFT, (B) A STATIONARY SEAL MEANS STATIONARILY MOUNTED IN SAID HOUSING TO COACT WITH SAID RUNNER MEMBER TO FORM A FLUID FILM THEREBETWEEN AND ADAPTED TO BE AXIALLY DISPLACED AND TO HAVE A SWIVELABLE MOVEMENT IN A PLANE TRANSVERSE TO THE AXIS OF SAID SHAFT WHEREBY ON ROTATION OF SAID SHAFT SAID STATIONARY SEAL MEANS WILL SWIVEL CORRESPONDING TO THE RUNOUT OF SAID RUNNER MEMBER, (C) A PISTON MEMBER OPERATIVELY ASSOCIATED WITH SAID STATIONARY SEAL MEANS AND HAVING LOW PRESSURE FLUID ACTING THEREON TO BALANCE THE RESULTANT PRESSURE OF THE FLUID FILM ACTING ON SAID STATIONARY SEAL 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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |