US3156405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant piston compressor
Assignee: Soluna Holdings Inc
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Filing: 1962-10-25
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Granted: 1964-11-10
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Expires: 1982-10-25
Abstract
No abstract record available.
Inventors
- 👤 Peter W Curwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:36
CPC Classifications
F; F04; F04B; F04B35/00; F04B35/04; F04B35/045; F04B27/00; F04B27/005; F04B29/00; F04B39/00; F04B39/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A RESONANT PISTON COMPRESSOR FOR COMPRESSING GAS AND SUPPLYING SAME TO A GAS SYSTEM, COMPRISING A PISTON ASSEMBLY, AN ELECTRONIC DRIVE CIRCUIT INCLUDING ELECTROMECHANICAL FORCE AND MOTION TRANSDUCERS, AND UPPER AND LOWER CYLINDERS; SAID PISTON ASSEMBLY BEING COUPLED TO SAID ELECTRONIC DRIVE CIRCUIT THROUGH SAID ELECTROMECHANICAL FORCE AND MOTION TRANSDUCERS TO ALWAYS DRIVE SAID PISTON ASSEMBLY AT RESONANCE, SAID PISTON ASSEMBLY COMPRISING UPPER AND LOWER PISTONS RECEIVED WITHIN AND RECIPROCABLE WITHIN SAID CYLINDERS WITH A SPRING CONNECTED TO SAID PISTON ASSEMBLY AND TO ONE OF SAID CYLINDERS, SAID UPPER AND LOWER CYLINDERS HAVING INTAKE AND DISCHARGE CHAMBERS COMMUNICATING INTERNALLY OF SAID CYLINDERS AND PISTONS, SAID ELECTROMECHANICAL FORCE AND MOTION TRANSDUCERS INCLUDING A FEEDBACK MOTION TRANSDUCER, A DRIVE TRANSDUCER OPERATIVELY CONNECTED TO ONE OF SAID PISTONS TO DRIVE SAID PISTON ASSEMBLY AND WITH THE MOTION OF SAID DRIVEN PISTON ASSEMBLY DETECTED BY SAID FEEDBACK MOTION TRANSDUCER OPERATIVELY CONNECTED TO THE OTHER ONE OF SAID PISTONS TO THEREBY DRIVE SAID PISTON ASSEMBLY AT ITS RESONANT FREQUENCY.
Claim 2
Dependent Claim
164 words
A RESONANT PISTON COMPRESSOR FOR COMPRESSING GAS AND SUPPLYING SAME TO A GAS SYSTEM, COMPRISING A PISTON ASSEMBLY, AN ELECTRONIC DRIVE CIRCUIT INCLUDING ELECTROMECHANICAL FORCE AND MOTION TRANSDUCERS, AND UPPER AND LOWER CYLINDERS; SAID PISTON ASSEMBLY BEING COUPLED TO SAID ELECTRONIC DRIVE CIRCUIT THROUGH SAID ELECTROMECHANICAL FORCE AND MOTION TRANSDUCERS TO ALWAYS DRIVE SAID PISTON ASSEMBLY AT RESONANCE, SAID PISTON ASSEMBLY COMPRISING UPPER AND LOWER PISTONS RECEIVED WITHIN AND RECIPROCABLE WITHIN SAID CYLINDERS WITH A SPRING CONNECTED TO SAID PISTON ASSEMBLY AND TO ONE OF SAID CYLINDERS, SAID UPPER AND LOWER CYLINDERS HAVING INTAKE AND DISCHARGE CHAMBERS COMMUNICATING INTERNALLY OF SAID CYLINDERS AND PISTONS, SAID ELECTROMECHANICAL FORCE AND MOTION TRANSDUCERS INCLUDING A FEEDBACK MOTION TRANSDUCER, A DRIVE TRANSDUCER OPERATIVELY CONNECTED TO ONE OF SAID PISTONS TO DRIVE SAID PISTON ASSEMBLY AND WITH THE MOTION OF SAID DRIVEN PISTON ASSEMBLY DETECTED BY SAID FEEDBACK MOTION TRANSDUCER OPERATIVELY CONNECTED TO THE OTHER ONE OF SAID PISTONS TO THEREBY DRIVE SAID PISTON ASSEMBLY AT ITS RESONANT FREQUENCY.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |