Signals and indicators – Indicators – Stress type
Patent
1985-09-27
1987-04-07
Frankfort, Charles
Signals and indicators
Indicators
Stress type
285 93, 285249, 2853827, 339177R, 403 27, 411 8, 277 2, 277190, G01L 500
Patent
active
046551590
ABSTRACT:
A compression pressure indicator includes a compression member which is disposed within a termination and is constructed such that when exposed to a pressure above a predetermined pressure a portion of the compression member protrudes from the termination thus indicating that optimum pressure has been applied inside the termination. The compression member includes an indicator portion and a collapsible portion, the collapsible portion being shaped such that when exposed to a pressure above the predetermined pressure, the collapsible portion collapses thus allowing relative movement between the indicator portion and pressure extending member such that the indicator portion protrudes a predetermined distance from an end of the pressure exerting member.
REFERENCES:
patent: 2394351 (1946-02-01), Wurzburger
patent: 2443635 (1948-06-01), Morris et al.
patent: 2473118 (1949-06-01), Wolfram
patent: 2475741 (1949-07-01), Goeller
patent: 2937360 (1960-05-01), True
patent: 3383974 (1968-05-01), Dahl
patent: 4223896 (1980-09-01), Strom
patent: 4375291 (1983-03-01), Padgett
patent: 4548427 (1985-10-01), Press et al.
Burkard Herbert G.
Frankfort Charles
Kovach Dennis E.
Raychem Corp.
Worth W. Morris
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