Sealing arrangement for multicoordinate sensing head

Details Sealing arrangement for multicoordinate sensing head Sealing arrangement for multicoordinate sensing head

1985-01-11

1985-10-29

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

33559, 33556, G01B 728

Patent

active

045493561

ABSTRACT:
A multicoordinate sensing head includes a housing which defines a sensing pin opening which is covered by a rigid plate. The plate defines at its center a cup bearing which pivotably mounts a ball. The ball defines a diametrically oriented bore sized to slide over a sensing pin. The plate is mounted to slide radially with respect to the housing in a circular recess defined by the housing. The outside diameter of the plate and the dimensions of the recess are matched in such a way that the sensing pin is free to move laterally when tilted. During such tilting the ball surrounding the sensing pin pivots in its bearing and the sensing pin opening remains covered in all cases.

REFERENCES:
patent: 3235222 (1966-02-01), Nickell
patent: 3660906 (1972-05-01), Zimmermann
patent: 4229010 (1980-10-01), Laurent

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