US4453508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible cylinder engine
Assignee: Individual
•
Filing: 1981-10-22
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Granted: 1984-06-12
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Expires: 2001-10-22
Abstract
Abstract A pumping or combustion engine having one to four cylindrical or semi-cylindrical chambers formed by at least one flexible sheet attached to a rotor, which sheet and/or rotor contact a plane, rigid plate at both sides thereof, containing inlet and exhaust ports for gases and/or liquids therein, which ports are opened and closed by the sheet, rotor, and/or spring-loaded check valves; and the volume of each chamber is varied when flexing the sheet by the reciprocal or rotational momentum of the rotor(s) alone, or its rotation along outer or inner, stationary or moveable, spring-loaded rigid cylinders (rollers).
Inventors
- 👤 Theodore O. Groeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:07
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/36; F02B75/02; F02B2075/022; F02B2075/027; F02F; F02F7/00; F02F7/0085; F02F2007/0092
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
175 words
An engine comprising: chamber means defined by sheet means comprising a pair of flexible rectangular sheets, each sheet having corresponding first parallel edges and corresponding second parallel edges, said sheets being attached to each other along corresponding first parallel edges, and plate means comprising a pair of rigid parallel plates contacting said sheets along said second parallel edges, thereby forming a flexible variable capacity chamber between them, flexing means comprising a rotatable shaft connected to a rotor and first attachment means connecting one of said corresponding first parallel edges of said sheets to said rotor at a radial distance from said shaft, support means comprising a stationary support and second attachment means connecting the other of said first parallel edges to said support, inlet and outlet means within said plate means for communicating said chamber with the atmosphere, ignition means supported in said plate means and communicating with said chamber, fuel injection means in communication with said chamber, and a mechanical energy to electrical energy conversion means comprising a motor/generator connected to said rotatable shaft.
Claim 2
Dependent Claim
175 words
An engine comprising: chamber means defined by sheet means comprising a pair of flexible rectangular sheets, each sheet having corresponding first parallel edges and corresponding second parallel edges, said sheets being attached to each other along corresponding first parallel edges, and plate means comprising a pair of rigid parallel plates contacting said sheets along said second parallel edges, thereby forming a flexible variable capacity chamber between them, flexing means comprising a rotatable shaft connected to a rotor and first attachment means connecting one of said corresponding first parallel edges of said sheets to said rotor at a radial distance from said shaft, support means comprising a stationary support and second attachment means connecting the other of said first parallel edges to said support, inlet and outlet means within said plate means for communicating said chamber with the atmosphere, ignition means supported in said plate means and communicating with said chamber, fuel injection means in communication with said chamber, and a mechanical energy to electrical energy conversion means comprising a motor/generator connected to said rotatable shaft.
Claim 3
Dependent Claim
55 words
An engine according to claim 1, wherein said inlet means is in the form of a recess in at least one of said rigid plates, said recess allowing the atmosphere to communicate with said chamber between at least one of said rigid plates and at least one of said second parallel edges of said sheets.
Claim 4
Dependent Claim
46 words
An engine according to claim 1, wherein said inlet means is in the form of a port communicating the chamber on one side of at least one of said rigid plates to the atmosphere on the other side of at least one of said rigid plates.
Claim 5
Dependent Claim
30 words
An engine as in claim 1, wherein said second attachment means is in the form of a pivot and said first attachment means is in the form of a pivot.
Claim 6
Dependent Claim
52 words
An engine as in claim 1, wherein said second attachment means rigidly attaches said first parallel edges to said support means, and said first attachment means is in the form of a slot defined in said second parallel edges and a pin attached to said rotor to be received in said slot.
Claim 7
Dependent Claim
16 words
An engine according to claim 1, wherein said rotor is periodically geared to said electric motor/generator.
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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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |