Tool for measuring the height of a material buildup on a referen

Details Tool for measuring the height of a material buildup on a referen Tool for measuring the height of a material buildup on a referen

1987-08-14

1988-10-11

Martin, Jr., William D.

Geometrical instruments

Gauge

Having a movable contact probe

33558, 33169B, 33172E, G01B 328

Patent

active

047761024

ABSTRACT:
A tool (10) is used for detecting whether material (14) on a reference surface (12) has exceeded a predetermined height. The tool (10) includes a housing (32) having a bottom surface with at least one opening (34) therein for receiving the material (14) whose height is to be tested. A probe means (44) is slideably mounted within the housing (32) and has one end located in the opening (34) for contacting the material (14). A circuit (18, 22) includes a pair of contacts (30) spaced a given distance from a predetermined portion of the probe (44). An indicator (66) is coupled to the circuit for signaling that the height of the material (14) exceeds the predetermined height when the probe (44) slide a sufficient distance so that the portion thereof closes the contacts (30).

REFERENCES:
patent: 1894025 (1933-01-01), Dennison et al.
patent: 2512879 (1950-06-01), Roggenstein
patent: 2913829 (1959-11-01), Arlin
patent: 3253338 (1966-05-01), Burnette
patent: 3903609 (1975-09-01), Brown
patent: 4227308 (1980-10-01), Talansky et al.

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