Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Reexamination Certificate
2009-07-31
2010-12-07
Hannon, Thomas R (Department: 3656)
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
C074S473270
Reexamination Certificate
active
07845252
ABSTRACT:
A transmission shift mechanism for use with a vehicle transmission. The transmission shift mechanism includes a user-operated selector and a sub-assembly operably disposed between said user-operated selector and the vehicle transmission. The sub-assembly includes a torque-transfer member having a first portion and a second portion wherein the first portion is pivotally secured to the transmission shift mechanism about a pivot axis and the second portion defines a section of a substantially spherical surface which is engageably disposed within a non-linear camming slot defined by the transmission shift section. The torque-transfer member takes the form of a molded polymeric body with a sheet metal insert disposed within the molded polymeric body. The second portion of the torque-transfer member may include flats to reduce the volume of polymeric material required in the manufacture of the member. A method of manufacturing such a torque-transfer member or crank arm is also disclosed.
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Cantor & Colburn LLP
GM Global Technology Operations Inc.
Hannon Thomas R
Johnson Phillip A
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