04017197 is referenced by 20 patents and cites 7 patents.

The invention is concerned with a pivot joint having means for indicating wear thereof. The pivot joint comprises a headed pin, a socket in which the head is engaged and from which the pin projects, mating bearing surfaces on the head and the socket such that the pin is movable angularly with respect to the socket, a wear indicator extending through an aperture in the sockets and having its inner end engageable with the head, and a diaphragm which extends between the indicator and the socket to seal the bearing surfaces against ingress of foreign matter through the aperture.

Title
Ball joint with wear indicator means
Application Number
5/641158
Publication Number
4017197
Application Date
December 16, 1975
Publication Date
April 12, 1977
Inventor
David John Rowland Farrant
Leamington Spa
EN
Agent
Lawrence J Winter
Assignee
Automotive Products Company
EN
IPC
F16C 11/06
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