US3076593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow regulator for piston-equipped cylinder
Assignee: Individual
•
Filing: 1958-09-15
•
Granted: 1963-02-05
•
Expires: 1978-09-15
Abstract
No abstract record available.
Inventors
- 👤 Alwin B Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:15
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/02; F04B49/03; F04B49/035; F25; F25B; F25B29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A GAS COMPRESSOR, A. A CYLINDER HAVING INTERIOR TOP AND SIDE WALLS, SAID CYLINDER BEING EQUIPPED WITH AN OPENING IN SAID INTERIOR TOP WALL, MEANS CONTAINING A GAS COMMUNICATING WITH SAID OPENING, B. A PISTON MOUNTED IN SAID CYLINDER FOR RECIPROCAL MOVEMENT DEFINING INTAKE AND COMPRESSION STROKES, C. A TUBULAR ELEMENT MOUNTED IN SAID OPENING FOR MOVEMENT THEREIN PARALLEL TO THE PISTON MOVEMENT AND INDEPENDENT OF THE MOVEMENT OF SAID PISTON, SAID PISTON BEING EQUIPPED WITH A PROJECTION EXTENDING UPWARDLY THEREFROM FOR SEALING RECEIPT IN SAID TUBULAR ELEMENT, AND MEANS FOR POSITIONING SAID ELEMENT IN SAID OPENING TO PROVIDE GAS FLOW THERETHROUGH DURING SELECTED INITIAL PORTIONS OF THE PISTON COMPRESSION STROKE UP TO AND INCLUDING SUBSTANTIALLY ALL OF THE PISTON COMPRESSION STROKE.
Claim 2
Dependent Claim
123 words
IN A GAS COMPRESSOR, A. A CYLINDER HAVING INTERIOR TOP AND SIDE WALLS, SAID CYLINDER BEING EQUIPPED WITH AN OPENING IN SAID INTERIOR TOP WALL, MEANS CONTAINING A GAS COMMUNICATING WITH SAID OPENING, B. A PISTON MOUNTED IN SAID CYLINDER FOR RECIPROCAL MOVEMENT DEFINING INTAKE AND COMPRESSION STROKES, C. A TUBULAR ELEMENT MOUNTED IN SAID OPENING FOR MOVEMENT THEREIN PARALLEL TO THE PISTON MOVEMENT AND INDEPENDENT OF THE MOVEMENT OF SAID PISTON, SAID PISTON BEING EQUIPPED WITH A PROJECTION EXTENDING UPWARDLY THEREFROM FOR SEALING RECEIPT IN SAID TUBULAR ELEMENT, AND MEANS FOR POSITIONING SAID ELEMENT IN SAID OPENING TO PROVIDE GAS FLOW THERETHROUGH DURING SELECTED INITIAL PORTIONS OF THE PISTON COMPRESSION STROKE UP TO AND INCLUDING SUBSTANTIALLY ALL OF THE PISTON COMPRESSION STROKE.
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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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |