Multiple purpose instrument housing

Details Multiple purpose instrument housing Multiple purpose instrument housing

1976-02-25

1977-07-12

Swisher, S. Clement

Measuring and testing

Instrument casing

73416, G01D 1124, G01L 1914

Patent

active

040346129

ABSTRACT:
A pressure gauge assembly is provided having a pressure responsive mechanism, a case enclosing the mechanism, and a transparent face plate for the front of the case. The case has a back plate and a generally cylindrical wall attached thereto. A plurality of relatively short segmented thread projections, forming a thread of relatively fine pitch, protrude from the outer surface of the wall and extend along a helical path. Additionally, a plurality of protuberances protrude from the inner surface of the wall. Either the projections or the protuberances function to mount the face plate. The back plate may include a portion which is recessed inwardly toward the face plate and a plurality of holes for blowout protection, distributed about its remaining portion.

REFERENCES:
patent: 1435922 (1922-11-01), Hasse
patent: 2463844 (1949-03-01), Anderson
patent: 3177722 (1965-04-01), Huston
patent: 3201992 (1965-08-01), Hoff, Jr.
patent: 3874241 (1975-04-01), Harland et al.

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