Expansible chamber devices – Piston – Open-ended hollow skirt type
Patent
1992-02-05
1993-10-26
Denion, Thomas E.
Expansible chamber devices
Piston
Open-ended hollow skirt type
92222, 92208, 74579R, 74579E, 2988805, 384625, F16J 104
Patent
active
052555925
ABSTRACT:
A wrist pin is provided for connecting a connecting rod to a piston, comprising a cylindrical aluminum pin having an outer cylindrical surface, the pin being matingly insertable into a bore of a piston, the outer cylindrical surface having an anodized coating applied thereto. A process for manufacturing a wrist pin is also provided, comprising the steps of machining a cylindrical pin, having an outer cylindrical surface, from aluminum stock; and applying an anodized coating to the outer cylindrical surface. The preferred anodized coating comprises a hardcoat anodized coating.
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Denion Thomas E.
Kiesel William David
Tucker Robert C.
W. A. Thomas Co.
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