Pressure gauge case

Details Pressure gauge case Pressure gauge case

1977-03-14

1978-06-06

Yasich, Daniel M.

Measuring and testing

Instrument casing

58 91, 220 82A, G01D 1126, G04B 3900

Patent

active

040928667

ABSTRACT:
A container for a pressure gauge movement which employs a viewing window. The container includes a flange along the edge adjacent to the window which receives the window and a resilient window sealing gasket. A resilient collar is placed around the edge of the window which sandwiches the gasket between the window and flange as it retracts. The collar includes a split and two non-parallel surfaces. The split allows the collar to be expanded when placed around the flange and window. The surfaces define a groove to receive the edges and press the flange and window together around the gasket as the collar retracts. A ring is placed over the collar which contains a plurality of detents and a window contacting surface. The detents engage the collar and cause it to contract and also lock the ring and collar in place on the case. At the same time, the surface presses the window against the gasket.

REFERENCES:
patent: 2714469 (1955-08-01), Carlson
patent: 2748976 (1956-06-01), Magnesen
patent: 2854815 (1958-10-01), Piquerez
patent: 2866940 (1958-12-01), Lamb
patent: 3370470 (1968-02-01), Neugebauer
patent: 3505722 (1970-04-01), Ullman
patent: 3543586 (1970-12-01), Waite
patent: 3831449 (1974-08-01), MacNiel et al.
patent: 3972239 (1976-08-01), Puster et al.

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