Patent US3272092A successfully refreshed from Google Patents.
US3272092A
Expired / Lapsed
US
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Lubricating arrangement for a reciprocating compressor
Assignee: Robert Bosch GmbH
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Filing: 1965-01-26
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Granted: 1966-09-13
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Vielmo Oskar
- 👤 Trui Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:00
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/0005; F04B25/00; F04B25/02; F04B39/02; F04B39/0284; F04B39/0292; F04B39/04; F04B39/041; F04B39/042; F16; F16J; F16J1/00; F16J1/08; F16T; F16T1/00; F16T1/02; F16T1/08; F16T1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A COMPRESSOR, IN COMBINATION, A CYLINDER MEMBER; A PISTON MEMBER MOUNTED IN SAID CYLINDER MEMBER FOR AXIALLY RECIPROCATING MOVEMENT, SAID MEMBERS HAVING RESPECTIVE CLOSELY ADJACENT CIRCUMFERENTIAL WALLS; A PLURALITY OF AXIALLY SPACED SEALING RING MEANS ON SAID WALL OF THE PISTON MEMBER IN SLIDING ENGAGEMENT WITH SAID WALL OF THE CYLINDER MEMBER, SAID PISTON MEMBER BEING FORMED WITH AN ANNUALAR GROOVE AXIALLY INTERMEDIATE TWO OF SAID SEALING RING MEANS; A CONTROL RING ARRANGED IN SAID GROOVE, SAID RING BEING DIMENSIONED FOR LIMITED AXIAL AND RADIAL MOVEMENT IN SAID GROOVE DURING SAID RECIPROCATING MOVEMENT OF THE PISTON MEMBER AND DEFINING A CIRCUMFERENTIALLY EXTENDING CHANNEL IN SAID GROOVE; LUBRICANT FEED MEANS FOR FEEDING A LIQUID LUBRICANT TO ONE CIRCUMFERENTIAL PORTION OF SAID CHANNEL; AND LUBRICANT RETURN MEANS FOR WITHDRAWING AT LEAST A PORTION OF THE FED LUBRICANT FROM ANOTHER PORTION OF SAID CHANNEL CIRCUMFERENTIALLY SPACED FROM SAID ONE PORTION.
Claim 2
Dependent Claim
148 words
IN A COMPRESSOR, IN COMBINATION, A CYLINDER MEMBER; A PISTON MEMBER MOUNTED IN SAID CYLINDER MEMBER FOR AXIALLY RECIPROCATING MOVEMENT, SAID MEMBERS HAVING RESPECTIVE CLOSELY ADJACENT CIRCUMFERENTIAL WALLS; A PLURALITY OF AXIALLY SPACED SEALING RING MEANS ON SAID WALL OF THE PISTON MEMBER IN SLIDING ENGAGEMENT WITH SAID WALL OF THE CYLINDER MEMBER, SAID PISTON MEMBER BEING FORMED WITH AN ANNUALAR GROOVE AXIALLY INTERMEDIATE TWO OF SAID SEALING RING MEANS; A CONTROL RING ARRANGED IN SAID GROOVE, SAID RING BEING DIMENSIONED FOR LIMITED AXIAL AND RADIAL MOVEMENT IN SAID GROOVE DURING SAID RECIPROCATING MOVEMENT OF THE PISTON MEMBER AND DEFINING A CIRCUMFERENTIALLY EXTENDING CHANNEL IN SAID GROOVE; LUBRICANT FEED MEANS FOR FEEDING A LIQUID LUBRICANT TO ONE CIRCUMFERENTIAL PORTION OF SAID CHANNEL; AND LUBRICANT RETURN MEANS FOR WITHDRAWING AT LEAST A PORTION OF THE FED LUBRICANT FROM ANOTHER PORTION OF SAID CHANNEL CIRCUMFERENTIALLY SPACED FROM SAID ONE PORTION.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |