Pneumatic indicator

Details Pneumatic indicator Pneumatic indicator

1975-10-09

1976-12-28

Woodiel, Donald O.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

116114PV, G01L 716

Patent

active

039994376

ABSTRACT:
The invention relates to a pneumatic indicator comprising a member or body and a transparent window behind which a spherical pivoting moving body can assume two distinct positions visible from the outside when the end of a lever placed in the member transmits to a cavity of the moving body, either the movements of a membrane or of a piston under pressure action or the movements resulting from a restoring spring.
Such indicators are particularly used in equipment for monitoring the operation of an installation controlled by automatic pneumatic equipment or in industrial atmospheres where incandescent lamps cannot be used because of the explosion hazard.

REFERENCES:
patent: 2505118 (1950-04-01), Holmes
patent: 3028758 (1962-04-01), Passaggio
patent: 3221704 (1965-12-01), Johannsen

Affiliated with

Also associated with

Rating

Pneumatic indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-142407