US3145694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry system for internal combustion engines
Assignee: Cooper Bessemer Corp
•
Filing: 1963-09-06
•
Granted: 1964-08-25
•
Expires: 1983-09-06
Abstract
No abstract record available.
Inventors
- 👤 William R Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:10
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/02; F02B45/00; F02B45/10; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
THE METHOD OF PREVENTING CORROSIVE ATTACK TO INTERNAL SURFACES OF FOUR CYCLE INTERNAL COMBUSTION ENGINES OF THE TYPE HAVING A GAS FLOW PASSAGE THAT INCLUDES A COMBUSTION CHAMBER, AN INTAKE PASSAGE LEADING TO THE TOP SURFACES OF SAID COMBUSTION CHAMBER, AN INTAKE VALVE AND VALVE SEAT CONTROLLING SAID INTAKE PASSAGE, AN EXHAUST PASSAGE LEADING FROM SAID COMBUSTION CHAMBER, AN EXHAUST VALVE AND VALVE SEAT CONTROLLING FLOW THROUGH SAID EXHAUST PASSAGE, AND A PISTON WHICH RECIPROCATES TOWARD AND AWAY FROM THE TOP OF SAID COMBUSTION CHAMBER, SAID METHOD COMPRISING: PROVIDING MEANS WHICH CAUSES SAID INTAKE VALVE AND SAID EXHAUST VALVE TO BE OFF OF THEIR SEATS SIMULTANEOUSLY FOR A PERIOD OF TIME WHEN SAID PISTON IS ADJACENT THE TOP OF SAID COMBUSTION CHAMBER, AND PROVIDING MEANS WHICH INTRODUCES A SLURRY OF A MATERIAL WHICH IS NON-CATALYTIC WITH RESPECT TO THE CONVERSION OF SULFUR DIOXIDE TO SULFUR TRIOXIDE INTO A PORTION OF SAID GAS FLOW PASSAGE WHEN SAID PISTON IS ADJACENT THE TOP OF SAID COMBUSTION CHAMBER AND SAID INTAKE AND EXHAUST VALVES ARE OFF OF THEIR SEATS.
Claim 2
Independent Claim
176 words
THE METHOD OF PREVENTING CORROSIVE ATTACK TO INTERNAL SURFACES OF FOUR CYCLE INTERNAL COMBUSTION ENGINES OF THE TYPE HAVING A GAS FLOW PASSAGE THAT INCLUDES A COMBUSTION CHAMBER, AN INTAKE PASSAGE LEADING TO THE TOP SURFACES OF SAID COMBUSTION CHAMBER, AN INTAKE VALVE AND VALVE SEAT CONTROLLING SAID INTAKE PASSAGE, AN EXHAUST PASSAGE LEADING FROM SAID COMBUSTION CHAMBER, AN EXHAUST VALVE AND VALVE SEAT CONTROLLING FLOW THROUGH SAID EXHAUST PASSAGE, AND A PISTON WHICH RECIPROCATES TOWARD AND AWAY FROM THE TOP OF SAID COMBUSTION CHAMBER, SAID METHOD COMPRISING: PROVIDING MEANS WHICH CAUSES SAID INTAKE VALVE AND SAID EXHAUST VALVE TO BE OFF OF THEIR SEATS SIMULTANEOUSLY FOR A PERIOD OF TIME WHEN SAID PISTON IS ADJACENT THE TOP OF SAID COMBUSTION CHAMBER, AND PROVIDING MEANS WHICH INTRODUCES A SLURRY OF A MATERIAL WHICH IS NON-CATALYTIC WITH RESPECT TO THE CONVERSION OF SULFUR DIOXIDE TO SULFUR TRIOXIDE INTO A PORTION OF SAID GAS FLOW PASSAGE WHEN SAID PISTON IS ADJACENT THE TOP OF SAID COMBUSTION CHAMBER AND SAID INTAKE AND EXHAUST VALVES ARE OFF OF THEIR SEATS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |