US3201182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thrust bearing
Assignee: Motors Liquidation Co
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Filing: 1962-03-28
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Granted: 1965-08-17
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Harold M Weissman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
F; F16; F16C; F16C25/00; F16C25/02; F16C25/04; F16C25/045; F16C17/00; F16C17/04; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/161; H02K7/00; H02K7/08; H02K7/09; F16C2380/00; F16C2380/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A GAS MAGNETIC THRUST BEARING FOR RESISTING THRUST FORCES ALONG THE SPIN AXIS OF A ROTATING MEMBER, MEANS ASSOCIATED WITH THE MEMBER FOR PROVIDING ROTATION THEREOF ABOUT THE SPIN AXIS, A FIRST THRUST PLATE OF MAGNETIC MATERIAL MOUNTED ON THE MEMBER COAXIALLY OF AND NORMAL TO THE SPIN AXIS FOR ROTATION THEREWITH, A STATIONARY THRUST PLATE NORMAL TO THE SPIN AXIS AND LOCATED IN CLOSE PROXIMITY TO THE FIST THRUST PLATE DEFINING A FIRST SPACING THEREBETWEEN, THE FIRST THRUST PLATE HAVING A NON-MAGNETIC COATING THEREON DEFINING A SECOND SPACING WITH THE STATIONARY THRUST PLATE, A GASEOUS MEDIUM IN THE SECOND SPACING, WHEREBY RELATIVE ROTATION OF THE PLATES PRODUCES HYDRODYNAMIC GAS PRESSURE IN THE SECOND SPACING FOR PROVIDING REPELLING FORCES BETWEEN THE PLATES, AND A PERMANENT MAGNET MOUNTED TO THE STATIONARY THRUST PLATE FOR PROVIDING ATTRACTIVE FORCES IN THE FRIST SPACING BETWEEN THE PLATESE, THE FIRST SPACING BEING GREATER THAN THE SECOND SPACING SO THAT THE RATE OF CHANGE OF ATTRACTIVE FORCES AS A FUNCTION OF DISPLACEMENT IS DIFFERENT FROM THE RATE OF CHANGE OF REPELLING FORCE DUE TO GAS PRESSURE AS A FUNCTION OF DISPLACEMENT, THE PLATES BEING SUBJECT TO RELATIVE ROTATION TO BE URGED TOWARD AN AXIAL DISPOSITION WHEREIN THE REPELLING AND ATTRACTIVE FORCES ARE EQUALIZED.
Claim 2
Dependent Claim
207 words
A GAS MAGNETIC THRUST BEARING FOR RESISTING THRUST FORCES ALONG THE SPIN AXIS OF A ROTATING MEMBER, MEANS ASSOCIATED WITH THE MEMBER FOR PROVIDING ROTATION THEREOF ABOUT THE SPIN AXIS, A FIRST THRUST PLATE OF MAGNETIC MATERIAL MOUNTED ON THE MEMBER COAXIALLY OF AND NORMAL TO THE SPIN AXIS FOR ROTATION THEREWITH, A STATIONARY THRUST PLATE NORMAL TO THE SPIN AXIS AND LOCATED IN CLOSE PROXIMITY TO THE FIST THRUST PLATE DEFINING A FIRST SPACING THEREBETWEEN, THE FIRST THRUST PLATE HAVING A NON-MAGNETIC COATING THEREON DEFINING A SECOND SPACING WITH THE STATIONARY THRUST PLATE, A GASEOUS MEDIUM IN THE SECOND SPACING, WHEREBY RELATIVE ROTATION OF THE PLATES PRODUCES HYDRODYNAMIC GAS PRESSURE IN THE SECOND SPACING FOR PROVIDING REPELLING FORCES BETWEEN THE PLATES, AND A PERMANENT MAGNET MOUNTED TO THE STATIONARY THRUST PLATE FOR PROVIDING ATTRACTIVE FORCES IN THE FRIST SPACING BETWEEN THE PLATESE, THE FIRST SPACING BEING GREATER THAN THE SECOND SPACING SO THAT THE RATE OF CHANGE OF ATTRACTIVE FORCES AS A FUNCTION OF DISPLACEMENT IS DIFFERENT FROM THE RATE OF CHANGE OF REPELLING FORCE DUE TO GAS PRESSURE AS A FUNCTION OF DISPLACEMENT, THE PLATES BEING SUBJECT TO RELATIVE ROTATION TO BE URGED TOWARD AN AXIAL DISPOSITION WHEREIN THE REPELLING AND ATTRACTIVE FORCES ARE EQUALIZED.
References Cited (Backward Citations)
US2809526A
Cited
US3026151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |