Reciprocating double-ended piston

Details Reciprocating double-ended piston Reciprocating double-ended piston

1988-11-28

1990-07-17

Garrett, Robert E.

Expansible chamber devices

With toothed gear, spline or thread rigid with working member

123 56C, 123 63, 123 61R, 74 33, 74131, 74132, F01B 900

Patent

active

049413961

ABSTRACT:
The present invention relates to a reciprocating engine which has an improved reciprocating double ended piston which substantially reduces the size and weight of piston components. The double ended piston comprises a center portion between the two end portions. The center portion having at least one pair of racks located along the longitudinal axis either on the outside surface of a pair of flat surfaces or on opposed inside surfaces along a slot cut into the center portion. At least one crankless drive shaft having a gear or pair of gears mateable with the racks so that the crankless drive shaft (s) are continuously rotated.

REFERENCES:
patent: 1419693 (1922-06-01), Schultz
patent: 1614476 (1927-01-01), Hutchinson
patent: 1636612 (1927-07-01), Noah
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patent: 4381739 (1983-05-01), Fisher
patent: 4465042 (1984-08-01), Bristol
patent: 4485768 (1984-12-01), Heniges
patent: 4485769 (1984-12-01), Carson
patent: 4492188 (1985-01-01), Palmer et al.
patent: 4498430 (1985-02-01), Giuliani et al.
patent: 4555903 (1985-12-01), Heaton

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