US3095204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear-resistant lining for piston-ring groove
Assignee: California Research LLC
•
Filing: 1961-03-08
•
Granted: 1963-06-25
•
Expires: 1981-03-08
Abstract
No abstract record available.
Inventors
- 👤 George L Neely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:01
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/22; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/943
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
FOR USE IN AN EXTERNAL COMBUSTION ENGINE ADAPTED TO BURN HIGH SULFUR FUEL AND WHICH HAS THE WALLS OF ITS CYLINDERS LINED WITH A MATERIAL CONTAINING CHROMIUM, THE COMBINATION OF A FERROUS METAL PISTON BEING PROVIDED WITH AT LEAST ONE CIRCUMFERENTIAL GROOVE HAVING PARALLEL SIDE FACES, A THIN LAYER OF METALLIC CHROMIUM BONDED TO THAT SIDE FACE OF SAID GROOVE AGAINST WHICH THE GREATEST THRUST OCCURS DURING RECIPROCATION OF SAID PISTON IN ONE OF SAID CYLINDERS, AND SAID THIN LAYER BEING CHAMFERED TO PREVENT CHROMIUM-TO-CHROMIUM CONTACT BETWEEN CHROMIUM AT THE CORNER OF SAID GROOVE AND THE CHROMIUMCONTAINING MATERIAL ON THE WALLS OF SAID CYLINDER.
Claim 2
Dependent Claim
104 words
FOR USE IN AN EXTERNAL COMBUSTION ENGINE ADAPTED TO BURN HIGH SULFUR FUEL AND WHICH HAS THE WALLS OF ITS CYLINDERS LINED WITH A MATERIAL CONTAINING CHROMIUM, THE COMBINATION OF A FERROUS METAL PISTON BEING PROVIDED WITH AT LEAST ONE CIRCUMFERENTIAL GROOVE HAVING PARALLEL SIDE FACES, A THIN LAYER OF METALLIC CHROMIUM BONDED TO THAT SIDE FACE OF SAID GROOVE AGAINST WHICH THE GREATEST THRUST OCCURS DURING RECIPROCATION OF SAID PISTON IN ONE OF SAID CYLINDERS, AND SAID THIN LAYER BEING CHAMFERED TO PREVENT CHROMIUM-TO-CHROMIUM CONTACT BETWEEN CHROMIUM AT THE CORNER OF SAID GROOVE AND THE CHROMIUMCONTAINING MATERIAL ON THE WALLS OF SAID CYLINDER.
References Cited (Backward Citations)
US1717750A
Cited
US1741643A
Cited
US2281426A
Cited
US2267368A
Cited
US2488697A
Cited
US2410405A
Cited
US2403455A
Cited
US2575214A
Cited
US2554289A
Cited
US2833264A
Cited
US2978284A
Cited
US2905512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |