Machine element or mechanism – Elements – Cranks and wrist pins
Reexamination Certificate
2005-07-05
2005-07-05
Luong, Vinh T. (Department: 3682)
Machine element or mechanism
Elements
Cranks and wrist pins
C074S595000, C074S597000, C074S598000, C029S888080, C403S242000
Reexamination Certificate
active
06912929
ABSTRACT:
A multi-piece crankshaft having a shaft with two ends and in which the shaft is adapted to rotate about its shaft axis and a crankpin with at least one indentation. The shaft and crankpin are placed within a mold having a first mold cavity corresponding in shape to the desired counterweight and the other end of the shaft is positioned within a second mold cavity corresponding in shape to a flywheel taper support for the crankshaft. The counterweight and flywheel taper support are then both formed by simultaneously casting a liquid material, such as zinc, into both the first and second mold cavities.
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Gifford, Krass, Groh Sprinkle, Anderson & Citkowski, P.C.
Luong Vinh T.
Panther Machine, Inc.
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