US3276676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing installation for rotary piston machines
Assignee: Karl Schmidt GmbH
•
Filing: 1964-10-27
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Granted: 1966-10-04
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Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Buske Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1075; F02; F02B; F02B53/00; F16C17/00; F16C17/02; F16C17/028; F02B2053/005; F02B2730/00; F02B2730/01; F02B2730/018; F16C2360/00; F16C2360/42; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A BEARING FOR JOURNALLING A ROTATABLE CYLINDRICAL MEMBER TO A ROTARY PISTON HAVING A PLURALITY OF CURVED PERIPHERAL WORKING SURFACES AND A BEARING BORE, WHICH COMPRISES A BEARING SHELL FIXEDLY DISPOSED WITHIN SAID BORE, SAID BEARING SHELL HAVING A PLURALITY OF END-ADJACENT, ARCUATE, INTERIOR GUIDING SURFACES, THE NUMBER OF WHICH EQUALS THE NUMBER OF PISTON WORKING SURFACES, SAID ARCUATE SURFACES COOPERATING TO GUIDE AND JOURNAL SAID ROTATABLE MEMBER TO SAID PISTON, SAID ARCUATE GUIDING SURFACES HAVING RADII OF CURVATURE WHICH PROVIDE A CLEARANCE WEDGE BETWEEN SAID SURFACES AND THE JOURNALLED MEMBER, AND MEANS FOR INTRODUCING A LUBRICANT INTO SAID CLEARANCE WEDGE.
Claim 2
Dependent Claim
101 words
A BEARING FOR JOURNALLING A ROTATABLE CYLINDRICAL MEMBER TO A ROTARY PISTON HAVING A PLURALITY OF CURVED PERIPHERAL WORKING SURFACES AND A BEARING BORE, WHICH COMPRISES A BEARING SHELL FIXEDLY DISPOSED WITHIN SAID BORE, SAID BEARING SHELL HAVING A PLURALITY OF END-ADJACENT, ARCUATE, INTERIOR GUIDING SURFACES, THE NUMBER OF WHICH EQUALS THE NUMBER OF PISTON WORKING SURFACES, SAID ARCUATE SURFACES COOPERATING TO GUIDE AND JOURNAL SAID ROTATABLE MEMBER TO SAID PISTON, SAID ARCUATE GUIDING SURFACES HAVING RADII OF CURVATURE WHICH PROVIDE A CLEARANCE WEDGE BETWEEN SAID SURFACES AND THE JOURNALLED MEMBER, AND MEANS FOR INTRODUCING A LUBRICANT INTO SAID CLEARANCE WEDGE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |