US3303990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant piston compressor
Assignee: Soluna Holdings Inc
•
Filing: 1964-02-11
•
Granted: 1967-02-14
•
Expires: 1984-02-11
Abstract
No abstract record available.
Inventors
- 👤 Peter W Curwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:16
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/08; F04B27/00; F04B27/005; F04B29/00; F04B35/00; F04B35/04; F04B35/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A RESONANT PISTON COMPRESSOR COMPRISING, A PISTON ASSEMBLY CONSISTING OF BIASING MEANS AND A PISTON, A CYLINDER HOUSING SAID PISTON, INTAKE AND DISCHARGE PORTS IN SAID CYLINDER FOR SUPPLYING GAS FOR COMPRESSION AND SUBSEQUENT DELIVERY TO A POINT OF USE, SAID CYLINDER FURTHER HAVING INLET AND DISCHARGE CHAMBERS RESPECTIVELY COMMUNICATING WITH SAID INTAKE AND DISCHARGE PORTS, SAID BIASING MEANS CONNECTED AT ONE END TO A STATIONARY MEMBER AND AT ITS OTHER END TO SAID PISTON, DRIVE MEANS COUPLED WITH SAID PISTON ASSEMBLY, THE ARRANGEMENT BEING SUCH THAT THE SEPARATE FORCES IMPARTED TO SAID PISTON BY THE DRIVE MEANS AND BIASING MEANS CAUSES IT TO RECIPROCATE IN SAID CYLINDER AT A RESONANT FREQUENCY, AND FLUID LUBRICATING MEANS COMPRISING GAS UNDER PRESSURE IN THE CLEARANCE SPACED BETWEEN SAID PISTON AND CYLINDER.
Claim 2
Dependent Claim
129 words
A RESONANT PISTON COMPRESSOR COMPRISING, A PISTON ASSEMBLY CONSISTING OF BIASING MEANS AND A PISTON, A CYLINDER HOUSING SAID PISTON, INTAKE AND DISCHARGE PORTS IN SAID CYLINDER FOR SUPPLYING GAS FOR COMPRESSION AND SUBSEQUENT DELIVERY TO A POINT OF USE, SAID CYLINDER FURTHER HAVING INLET AND DISCHARGE CHAMBERS RESPECTIVELY COMMUNICATING WITH SAID INTAKE AND DISCHARGE PORTS, SAID BIASING MEANS CONNECTED AT ONE END TO A STATIONARY MEMBER AND AT ITS OTHER END TO SAID PISTON, DRIVE MEANS COUPLED WITH SAID PISTON ASSEMBLY, THE ARRANGEMENT BEING SUCH THAT THE SEPARATE FORCES IMPARTED TO SAID PISTON BY THE DRIVE MEANS AND BIASING MEANS CAUSES IT TO RECIPROCATE IN SAID CYLINDER AT A RESONANT FREQUENCY, AND FLUID LUBRICATING MEANS COMPRISING GAS UNDER PRESSURE IN THE CLEARANCE SPACED BETWEEN SAID PISTON AND CYLINDER.
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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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |