US2814552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating compression-reactor for short period, high temperature and high pressure chemical reactions
Assignee: Shell Development Co
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Filing: 1951-01-08
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Granted: 1957-11-26
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Expires: 1971-01-08
Abstract
No abstract record available.
Inventors
- 👤 Willem J D Van Dijck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:46
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/08; F; F02; F02B; F02B71/00; F02B71/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A FREE PISTON MACHINE OF THE TYPE DESCRIBED HAVING, IN COMBINATION: A SLIDE BED HAVING A SUBSTANTIALLY HORIZONTAL, UPWARDLY DIRECTED CYLINDRICAL SUPPORTING SURFACE; A CYLINDER HAVING CLOSED END WALLS AND A BORE MOUNTED FOR RECIPROCATION ON SAID BED, SAIDCYLINDER BEING EXTERNALLY A CYLINDER OF REVOLUTION AND HAVING A CENTER OF GRAVITY BELOW THE AXIS OF SAID CYLINDER OF REVOLUTION; A FREE PISTON WITHIN SAID BORE; INTAKE AND EXHAUST PORTS IN THE WALL OF SAID CYLINDER; AND CONDUIT MEANS ASSOCIATED WITH SAID BED HAVING PORT MEANS LOCATED TO REGISTER WITH SAID INTAKE AND EXHAUST PORT IN THE CYLINDER.
Claim 2
Dependent Claim
97 words
A FREE PISTON MACHINE OF THE TYPE DESCRIBED HAVING, IN COMBINATION: A SLIDE BED HAVING A SUBSTANTIALLY HORIZONTAL, UPWARDLY DIRECTED CYLINDRICAL SUPPORTING SURFACE; A CYLINDER HAVING CLOSED END WALLS AND A BORE MOUNTED FOR RECIPROCATION ON SAID BED, SAIDCYLINDER BEING EXTERNALLY A CYLINDER OF REVOLUTION AND HAVING A CENTER OF GRAVITY BELOW THE AXIS OF SAID CYLINDER OF REVOLUTION; A FREE PISTON WITHIN SAID BORE; INTAKE AND EXHAUST PORTS IN THE WALL OF SAID CYLINDER; AND CONDUIT MEANS ASSOCIATED WITH SAID BED HAVING PORT MEANS LOCATED TO REGISTER WITH SAID INTAKE AND EXHAUST PORT IN THE CYLINDER.
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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |