US3585904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor
Assignee: Individual
•
Filing: 1968-11-26
•
Granted: 1971-06-22
•
Expires: 1988-11-26
Abstract
Abstract A compressor having a housing and an eccentrically mounted rotor in the housing. A plurality of pistons reciprocate in the rotor and bear against the housing. Passages in the pistons allow gas to flow underneath the pistons when the pistons are in the extended position, and the gas is compressed in the cylinders as the pistons move inwardly and expelled through a port at the inner end of each cylinder.
Inventors
- 👤 Meyer P White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:51
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/04; F04B27/0404; F04B27/0409; F04B27/06; F04B27/0606; F04B27/0612
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
186 words
A compressor comprising: a housing having a peripheral wall, a rotor excentrically mounted in the housing for rotation about a fixed, central axis, a plurality of cylinders formed in the rotor and extending to its periphery, a piston mounted for reciprocal motion in each cylinder as the rotor rotates, and for rotary motion in unison with said rotor, the housing wall controlling the position of the piston as the rotor rotates, a passage formed in the side of each piston and exTending along the piston to the inner end thereof, each of said passages being constructed and arranged to be closed by the wall of its cylinder as its piston moves inwardly in the cylinder whereby when said piston is in the extended position, gas in the housing between the peripheral wall and the rotor may move into each cylinder below its associated piston and when said piston moves inwardly in the cylinder said gas will be entrapped and compressed therein, and a discharge port provided at the inner end of each cylinder, each port opening as the piston in each cylinder achieves its inner position.
Claim 2
Dependent Claim
186 words
A compressor comprising: a housing having a peripheral wall, a rotor excentrically mounted in the housing for rotation about a fixed, central axis, a plurality of cylinders formed in the rotor and extending to its periphery, a piston mounted for reciprocal motion in each cylinder as the rotor rotates, and for rotary motion in unison with said rotor, the housing wall controlling the position of the piston as the rotor rotates, a passage formed in the side of each piston and exTending along the piston to the inner end thereof, each of said passages being constructed and arranged to be closed by the wall of its cylinder as its piston moves inwardly in the cylinder whereby when said piston is in the extended position, gas in the housing between the peripheral wall and the rotor may move into each cylinder below its associated piston and when said piston moves inwardly in the cylinder said gas will be entrapped and compressed therein, and a discharge port provided at the inner end of each cylinder, each port opening as the piston in each cylinder achieves its inner position.
Claim 3
Dependent Claim
72 words
A compressor as defined in claim 1 further characterized by: said side of said piston in which said passage is formed being exposed when the piston is in the extended position and being closed when the piston is in the inner position said passage being formed in each piston so that when said side having said passage formed therein is extended, said passage faces in the direction of rotation of said rotor.
Claim 4
Dependent Claim
36 words
A compressor as defined in claim 1 further characterized by: a sleeve about which the rotor rotates, a discharge opening provided in the sleeve and registering sequentially with each port once each revolution of the rotor.
Claim 5
Dependent Claim
28 words
A compressor as defined in claim 3 further characterized by: said sleeve serving as a conduit to convey the compressed gas discharged through the opening from the housing.
Claim 6
Dependent Claim
54 words
A compressor as defined in claim 1 further characterized by: an arcuate runner formed on the end of each piston having a radius less than that of the housing wall, and a track in the inner surface of the wall of the housing in which the runner rides as it moves about the housing.
Claim 7
Dependent Claim
29 words
A compressor as defined in claim 1 further characterized by: a foot pivoted to the end of each piston and bearing against the inner surface of the housing wall.
Claim 8
Dependent Claim
41 words
A compressor as defined in claim 5 further characterized by: a foot connected to the piston as a runner with an air passage in the surface of the foot to define an air bearing for the foot on the housing wall.
Claim 9
Dependent Claim
31 words
A compressor as defined in claim 6 further characterized by: an air passage in the surface of the foot to define an air bearing for the foot on the housing wall.
Claim 10
Dependent Claim
54 words
A compressor as defined in claim 2 further characterized by: a sleeve about which the rotor rotates, a discharge opening provided in the sleeve and registering sequentially with each port once each revolution of the rotor, said sleeve serving as a conduit to convey the compressed gas discharged through the opening from the housing.
Claim 11
Dependent Claim
31 words
A compressor as defined in claim 1 further characterized by: a keying means provided between the cylinder and piston for preventing the piston from rotating in the cylinder as it reciprocates.
Claim 12
Dependent Claim
53 words
A compressor as defined in claim 4 further characterized by: a wear pin carried by each piston and riding in a key way provided in each cylinder to prevent the pistons from rotating, and a foot pivoted to the end of each piston and bearing against the inner surface of the housing wall.
Claim 13
Dependent Claim
35 words
A compressor as defined in claim 2 further characterized by: means for maintaining each of said pistons in a position in which the passage thereof faces in the direction of rotor rotation at all times.
References Cited (Backward Citations)
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |