Case assembly for gauge

Details Case assembly for gauge Case assembly for gauge

1987-03-09

1988-06-28

Noland, Tom

Measuring and testing

Instrument casing

G01D 1124

Patent

active

047531126

ABSTRACT:
A gauge (10) is disclosed which incorporates an improved case assembly. In one embodiment, a case (14) is designed for use with either a bayonet ring (22) or a friction fit ring such as an elastomeric ring (50) or a push in window (156). In the first embodiment, cam followers (28) are positioned in pockets (46) formed on the case (14) to orient the followers and the followers are then secured to the case, as by welding. Cam surfaces (32) on the bayonet ring (22) cooperate with the followers to secure the ring on the case. When using a friction fit ring (50, 150) the case defines an interior surface (44) to receive the ring. In a second embodiment, curved strips (132) are secured to the exterior surface of the case (130). Cam followers (140) are used on the bayonet ring (138) to cooperate with the cam surfaces on the curved strips to secure the ring to the case. Alternately, an elastomeric ring (50) or push in ring (152) can be used with the case (130).

REFERENCES:
patent: 1637093 (1927-07-01), Tomlinson
patent: 3187582 (1965-06-01), Perkins et al.
patent: 3434330 (1969-03-01), Ingham et al.
patent: 3921455 (1975-11-01), Staubli et al.
patent: 4096760 (1978-06-01), Billbert et al.
patent: 4175444 (1979-11-01), Harland
patent: 4192193 (1980-03-01), Schnell
patent: 4459848 (1984-07-01), Huret et al.
patent: 4545256 (1985-10-01), Ferguson
Photographs 1-11; miscellaneous case mounted gauges; in public use by Dec. 1987.

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