Pressure switch and circuit means

Details Pressure switch and circuit means Pressure switch and circuit means

1979-02-05

1982-03-09

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

With control of pump drive transmission

417223, F04B 4900, F04B 4906

Patent

active

043186734

ABSTRACT:
A pressure switch is shown as having two terminals extending externally of a switch housing within which are two stationary adjustably prepositioned fixed contacts respectively electrically connected to the two terminals; two movable contacts are also situated within the housing and, in response to sensed pressure, move toward (or away from) the fixed contacts in a manner causing sequential closing of electrical circuit portions as between respective movable contacts and fixed contacts; related electrical circuit means electrically connected to such contacts serves to energize and/or de-energize related output means as, for example, electrically operated clutch means.

REFERENCES:
patent: 2881597 (1959-04-01), Jacobs
patent: 3131335 (1964-04-01), Berglund et al.
patent: 3214084 (1965-10-01), Smirl
patent: 3478512 (1969-11-01), Brahm
patent: 3631685 (1972-01-01), Young
patent: 3633380 (1972-01-01), Pellizzetti
patent: 3801889 (1974-04-01), Quinn
patent: 3844684 (1974-10-01), Kawamura
patent: 3898527 (1975-08-01), Cawley

Affiliated with

Also associated with

Rating

Pressure switch and circuit means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure switch and circuit means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure switch and circuit means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1838852