Rotary shafts – gudgeons – housings – and flexible couplings for ro – Having lubricating means – For coupling having torque transmitted via radially directed...
Reexamination Certificate
2005-03-01
2005-03-01
Binda, Greg (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Having lubricating means
For coupling having torque transmitted via radially directed...
C464S023000
Reexamination Certificate
active
06860815
ABSTRACT:
A method and apparatus for detecting the operating condition of a universal joint in a driveline assembly utilizes a pressure relief valve that is supported by a universal joint cross member. The cross member includes a central body portion with a plurality of radially extending trunnions. A first driveline component supports a first yoke member and a second driveline component supports a second yoke member. Each yoke member cooperates with two opposing trunnions to interconnect the first and second driveline components. An internal lubrication channel is formed within the cross member and is in fluid communication with each trunnion. Seal assemblies are installed within cups mounted to each trunnion member to seal the lubricating fluid within the cross member. The universal joint is operating properly when lubricating fluid that is injected through an external lubrication fitting during service operations, exits via the pressure relief valve. The universal joint is not operating properly when the lubricating fluid exits via at least one of the seal assemblies instead of through the pressure relief valve.
REFERENCES:
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patent: 4419086 (1983-12-01), Condon
patent: 5718633 (1998-02-01), Gehrke
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ArvinMeritor Technology LLC
Binda Greg
Carlson, Gaskey & Olds.
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