Ball joint safety system

Details Ball joint safety system Ball joint safety system

1986-06-10

1987-07-14

Husar, Cornelius J.

Joints and connections

With indicator or inspection means

403115, 403131, B25G 300

Patent

active

046799575

ABSTRACT:
A ball joint assembly having a primary ball and a primary bearing surface. The primary ball is coaxially attached to a main shaft which pivots near the point of contact between the primary ball and the primary bearing surface. The main shaft controls a coaxially connected secondary ball spaced apart from the primary ball and closely spaced from a secondary bearing surface, similar in orientation to the primary surface, so that the secondary ball floats freely at some predetermined distance from the secondary bearing surface. The secondary ball contacts a normally closed microswitch. As the primary bearing surface wears the main shaft rises bringing the secondary ball toward the secondary bearing surface and away from the microswitch. Eventually the secondary ball will contact the secondary bearing surface and the microswitch will be activated, causing a warning light to illuminate, thereby signalling wearout of the ball joint without catastrophic failure.

REFERENCES:
patent: 1954938 (1934-04-01), Lozonne
patent: 2510406 (1950-06-01), Lucas
patent: 2624123 (1953-01-01), Wilkerson
patent: 2672597 (1954-03-01), Ritch, Jr.
patent: 3135540 (1964-06-01), Herbenar
patent: 3438646 (1969-04-01), Hannapel
patent: 3561800 (1971-02-01), Hassan
patent: 3597728 (1971-08-01), Kurtz
patent: 4355543 (1982-10-01), Ikemoto et al.
patent: 4576499 (1986-03-01), Smith
patent: 4613251 (1986-09-01), Bellamy et al.

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