Damped pressure switch

Electricity: circuit makers and breakers – Fluid pressure – Piston

Reexamination Certificate

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Details

C200S08200C

Reexamination Certificate

active

07038151

ABSTRACT:
The pressure switch, constituted by a cylindrical body, comprises two portions which are interconnected; also, a first of the portions is connected to a micro-switch and the second to an inlet for pressurise fluid delivery. A stem is housed inside the cylindrical body and oscillates alternatively between an inactive position, with the micro-switch deactivated, and an active position, with the micro-switch activated by pressing. Elements for slowing a translation velocity of the stem are included between the stem and the inlet.

REFERENCES:
patent: 4752658 (1988-06-01), Mack
patent: 4827093 (1989-05-01), Strzodka
patent: 5089673 (1992-02-01), Strzodka
patent: 5187337 (1993-02-01), Fujie et al.
patent: 5317954 (1994-06-01), Goans
patent: 5554834 (1996-09-01), Ellett

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