Expansible chamber devices – Piston – Plural separable parts
Reexamination Certificate
2008-04-08
2008-04-08
Leslie, Michael (Department: 3745)
Expansible chamber devices
Piston
Plural separable parts
Reexamination Certificate
active
11106916
ABSTRACT:
An apparatus and method for coupling a piston member to a rod member to create a piston and rod assembly are provided. The piston and rod assembly may include a piston member having a longitudinal bore and first and second retaining passages in communication with and extending away from the bore. The piston and rod assembly may further include a rod member having a third retaining passage arranged therein, a portion of the rod member being received within the bore of the piston member so that the third retaining passage is arranged within the bore in an offset configuration relative at least one of the first and second retaining passages. The piston and rod assembly may further include a retaining member arranged within the first and second retaining passages of the piston member and the third retaining passage of the rod member.
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Barnes D. James
Caterpillar Inc.
Greene Jeff A.
Leslie Michael
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