Pressure gauge with needle actuated alarm

Details Pressure gauge with needle actuated alarm Pressure gauge with needle actuated alarm

1988-07-26

1990-03-06

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340693, 340688, 200 56R, 137557, G08B 2100

Patent

active

049069772

ABSTRACT:
A pressure gauge has a turning button, a turning disc and a sliding block disposed thereon that, through a protruding wheel fixed on the needle shaft moves the sliding block to force a contact point of a conducting metal piece to contact with a contact point of the turning disc, can start an alarm in case the needle of the gauge comes to reach the designated pressure.

REFERENCES:
patent: 1118742 (1914-11-01), Cole
patent: 2715165 (1955-08-01), Matter
patent: 3016038 (1962-01-01), Stiens
patent: 3678758 (1972-07-01), Lawrence
patent: 4536756 (1985-08-01), DePasquale et al.
patent: 4613851 (1986-09-01), Hines

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