US3275330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure shaft seal and method of sealing a rotating shaft using proportioned sealing rings
Assignee: Guy F Atkinson Co
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Filing: 1962-07-16
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Granted: 1966-09-27
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Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Edward N Rein
- 👤 Robert E Dolman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3408; F16J15/3412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A METHOD OF SEALING A ROTATING SHAFT PENETRATING A FIXED HOUSING AGAINST EGRESS FROM SAID HOUSING OF FLUID UNDER HIGH, VARIABLE PRESSURE, SAID METHOD COMPRISING; PROVIDING A FIRST RING SECURED AND SEALED TO SAID HOUSING AND COAXIAL WITH SAID SHAFT, PROVIDING A SECOND RING SURROUNDING SAID SHAFT, SUPPORTING SAID SECOND RING ADJACENT ITS INSIDE EDGE ON A RESILIENT O RING, SAID SECOND RINGBEING MOVABLE AXIALLY THEREOF AND HAVING AN ANNULAR SURFACE CONFRONTING A MEETING SURACE ON SAID FIRST RING; URGING SAID SURFACES INTO CONTACT BY THE APPLICATION OF RESILIENT MECHANICAL FORCE; SUBJECTING SELECTED PORTIONS OF THE SURFACE OF BOTH SAID RINGS TO THE HIGH, VARIABLE PRESSURE OF THE FLUID TO BE RESTRAINED AGAINST EGRESS FROM SAID HOUSING; AND SELECTING THE CONTOURS AND PROPORTIONS OF AT LEAST SAID SECOND RING SO THAT IN EACH RADIAL CROSSSECTION OF SAID SECOND RING THE RESULTANT OF ALL EXTERNAL FORCES ACTING ON SAID SECOND RING PASSES SUBSTANTIALLY RADIALLY INWARD AND SUBSTANTIALLY THROUGH THE CENTROID OF THE RADIAL CROSS-SECTION OF SAID SECOND RING.
Claim 2
Independent Claim
167 words
A METHOD OF SEALING A ROTATING SHAFT PENETRATING A FIXED HOUSING AGAINST EGRESS FROM SAID HOUSING OF FLUID UNDER HIGH, VARIABLE PRESSURE, SAID METHOD COMPRISING; PROVIDING A FIRST RING SECURED AND SEALED TO SAID HOUSING AND COAXIAL WITH SAID SHAFT, PROVIDING A SECOND RING SURROUNDING SAID SHAFT, SUPPORTING SAID SECOND RING ADJACENT ITS INSIDE EDGE ON A RESILIENT O RING, SAID SECOND RINGBEING MOVABLE AXIALLY THEREOF AND HAVING AN ANNULAR SURFACE CONFRONTING A MEETING SURACE ON SAID FIRST RING; URGING SAID SURFACES INTO CONTACT BY THE APPLICATION OF RESILIENT MECHANICAL FORCE; SUBJECTING SELECTED PORTIONS OF THE SURFACE OF BOTH SAID RINGS TO THE HIGH, VARIABLE PRESSURE OF THE FLUID TO BE RESTRAINED AGAINST EGRESS FROM SAID HOUSING; AND SELECTING THE CONTOURS AND PROPORTIONS OF AT LEAST SAID SECOND RING SO THAT IN EACH RADIAL CROSSSECTION OF SAID SECOND RING THE RESULTANT OF ALL EXTERNAL FORCES ACTING ON SAID SECOND RING PASSES SUBSTANTIALLY RADIALLY INWARD AND SUBSTANTIALLY THROUGH THE CENTROID OF THE RADIAL CROSS-SECTION OF SAID SECOND RING.
References Cited (Backward Citations)
FR737230A
Cited
US2723868A
Cited
US2824759A
Cited
US3052475A
Cited
FR1237697A
Cited
US3069176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |