Expansible chamber devices – With linkage or transmission having relatively movable members
Reexamination Certificate
2007-03-20
2007-03-20
Lazo, Thomas E. (Department: 3745)
Expansible chamber devices
With linkage or transmission having relatively movable members
C123S0510AC
Reexamination Certificate
active
10550257
ABSTRACT:
A piston mechanism comprises a crankcase, a crankshaft with three crankpins, a cylinder with diverging pistons defining working chambers having inlet and outlet openings, and two connecting members, one of which cooperates with the middle crankpin and the other with the two outer crankpins. In the body of the cylinder there are guide channels provided, in which connecting rods are arranged in alternating sequence, which are attached to one or the other connecting member by their bases, forming two synchronous groups of connecting rods. The guide channels are provided with through-cuts in the working surface of the cylinder with outlets into its cavity so that the faces of the connecting rods of the synchronous groups facing the cavity of the cylinder form movable parts of its working surface. The pistons are attached by their peripheries to the lateral faces of the connecting rods of one or the other synchronous group sequentially and spaced from each other, forming two movable rigid carcasses inserted in one another, moving in opposite directions.
REFERENCES:
patent: 1238190 (1917-08-01), Pichoud
patent: 1239274 (1917-09-01), Ingram
patent: 1723865 (1929-08-01), Kelly
patent: 1835138 (1931-12-01), Bowman
patent: 2103103 (1937-12-01), Waters
patent: 32 37 858 1 (1984-04-01), None
patent: 41 35 386 (1992-03-01), None
patent: 195 03 444 (1996-05-01), None
Lazo Thomas E.
McCormick Paulding & Huber LLP
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