Liquid indicator gauge

Details Liquid indicator gauge Liquid indicator gauge

1988-10-31

1989-11-07

Haroian, Harry N.

Geometrical instruments

Distance measuring

Single contact with a work engaging support

33644, G01B 1302

Patent

active

048782980

ABSTRACT:
A circular indicator gauge includes a body of molded plastic and a spiral channel formed therein with an inlet at one end of the channel and an air filled reservoir at the other end. A movable piston is in a chamber that is filled with mercury and in communication with the inlet of the channel. A faceplate and indicia film are ultrasonically welded to the body to complete the channel and reservoir. A spring in the chamber urges the piston toward a rest position. A sensing device moves the piston in response to displacement of a workpiece. A compensating screw communicates with the chamber for correcting for temperature changes. A cylindrical, relative displacement indicator is also disclosed and includes a clear body with a straight channel therethrough that is in communication with a piston that is movable in a mercury filled chamber and is operated by a sensor. An upper cap enables in line mounting of the indicator in the chuck of a tool, such as a drill press.

REFERENCES:
patent: 1245559 (1917-11-01), Booth
patent: 2239573 (1941-04-01), Roberts

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-76734