Expansible chamber devices – Piston with rigid axially extending hollow stem
Patent
1990-01-26
1992-03-03
Look, Edward K.
Expansible chamber devices
Piston with rigid axially extending hollow stem
92 99, 92209, 92248, F01B 3100, F16J 104
Patent
active
050922246
ABSTRACT:
An improved wobble-type piston and rod assembly wherein the assembly includes a conical or infundibularly shaped piston that is capable of withstanding non-axial stress and strain forces induced by reciprocation of the crank shaft ring. An apex of the infundibularly shaped piston is attached to the ring. The piston can be attached to the crank shaft ring by means of a plurality of axial ribs, the ribs flaring outwardly from the apex of the piston to the ring. Alternatively, the piston can be attached to the ring by means of a flattened beam with two ribs/fins that flare outwardly within the plane of the beam. The piston rod assembly is formed as a unitary body.
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Look Edward K.
Ryznic John
Thomas Industries
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