Fluid pressure indicator

Details Fluid pressure indicator Fluid pressure indicator

1992-04-01

1993-03-02

Yasich, Daniel M.

Signals and indicators

Indicators

Fluid flow

73715, 116276, G01F 708, G01F 1914

Patent

active

051899795

ABSTRACT:
A simple and compact fluid pressure indicator comprising a housing having a passage communicating with the pressure to be monitored leading to an interior chamber, a flexible diaphragm sealing and dividing the chamber into two parts, a colored indicator area on one side of the diaphragm, a light transmitting viewing window axially aligned with and parallel to the indicator area, and a sealed flexible envelope of light-absorbing fluid interposed between the indicator area and viewing window. A change in the monitored pressure causes the diaphragm to flex and the indicator area to be displaced, altering the thickness of the absorbing fluid envelope, and therefore the amount of light reflected from the indicator area. Thus a very small change in pressure will result in a dramatic color change displayed in the viewing window, providing a sensitive pressure indication.

REFERENCES:
patent: 3703879 (1972-11-01), Huthsing, Jr.
patent: 3780693 (1973-12-01), Parr
patent: 3872268 (1975-03-01), Hata
patent: 3987699 (1976-10-01), Popenoe
patent: 4020784 (1977-05-01), Greene
patent: 5014786 (1991-05-01), Kobayashi

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-120485