US3220786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearings
Assignee: CAVENDISH LAB CAMBRIDGE
•
Filing: 1960-08-22
•
Granted: 1965-11-30
•
Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 Mccutchen Charles Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:12
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/22; F16C33/20; F16C33/201
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A BEARING COMPRISING TWO RELATIVELY MOVABLE MENTBERS, AT LEAST ONE BEARING ELEMENT OF A RESILIENT MATERIAL CARRIED BY ONE OF SAID MEMBERS, A BEARING SURFACE WHICH IS A PROVIDED BY SAID BEARING ELEMENT AND IN WHICH ARE PROVIDED PORES, LIQUID LUBRICANT CONTAIONED IN THE SAID PORES, AND MEANS COMPRESSING THE BEARING ELEMENT AND LOADING SAID BEARIONG SURFACE INTO ENGAGEMENT WITH THE OTHER OF SAID MEMBRS SAID ELEMENT BEING MADE OF A MATERIAL WHICH IS SUBSTANTIALLY NON-POROUS IN THE DIRECTION ALONG THE LENGHT OF THE ELEMENT AND OF INCEASING POROSITY RADIALLY ACROSS THE ELEMENT AND TOWARDS THE AREA ADJACENT TO SAID SURFACE WITH THE POROSITY IN A RADIAL DIRECTION IN SAID AREA BEING SUBSTANTIALLY HIGHER THAN THAT IN THE LONGITUDINAL DIRECTION, SO THAT SAID LUBRICANT CAN SEEP RELATIVELY FREELY IN SAID RADIAL DIRECTION WHEN SAID SURFACE IS UNDER LOAD AND WHEREBY SEPAGE OF SAID LUBRICANT IN SAID PARALLEL DIRECTION IS RELATIVELY RESTRICTED.
Claim 2
Dependent Claim
151 words
A BEARING COMPRISING TWO RELATIVELY MOVABLE MENTBERS, AT LEAST ONE BEARING ELEMENT OF A RESILIENT MATERIAL CARRIED BY ONE OF SAID MEMBERS, A BEARING SURFACE WHICH IS A PROVIDED BY SAID BEARING ELEMENT AND IN WHICH ARE PROVIDED PORES, LIQUID LUBRICANT CONTAIONED IN THE SAID PORES, AND MEANS COMPRESSING THE BEARING ELEMENT AND LOADING SAID BEARIONG SURFACE INTO ENGAGEMENT WITH THE OTHER OF SAID MEMBRS SAID ELEMENT BEING MADE OF A MATERIAL WHICH IS SUBSTANTIALLY NON-POROUS IN THE DIRECTION ALONG THE LENGHT OF THE ELEMENT AND OF INCEASING POROSITY RADIALLY ACROSS THE ELEMENT AND TOWARDS THE AREA ADJACENT TO SAID SURFACE WITH THE POROSITY IN A RADIAL DIRECTION IN SAID AREA BEING SUBSTANTIALLY HIGHER THAN THAT IN THE LONGITUDINAL DIRECTION, SO THAT SAID LUBRICANT CAN SEEP RELATIVELY FREELY IN SAID RADIAL DIRECTION WHEN SAID SURFACE IS UNDER LOAD AND WHEREBY SEPAGE OF SAID LUBRICANT IN SAID PARALLEL DIRECTION IS RELATIVELY RESTRICTED.
References Cited (Backward Citations)
US2734785A
Cited
US1553775A
Cited
US2093800A
Cited
US2228406A
Cited
US2424883A
Cited
US2400091A
Cited
US2507021A
Cited
US2576073A
Cited
US2713699A
Cited
US2793919A
Cited
US2929664A
Cited
US2946094A
Cited
US2988406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |