Geometrical instruments – Area integrators – Electrical
Patent
1975-04-07
1976-09-07
Aegerter, Richard E.
Geometrical instruments
Area integrators
Electrical
33178R, 33180AT, G01B 508, G01B 502
Patent
active
039785890
ABSTRACT:
Apparatus for measuring two dimensions of an object and combining the measured values to obtain a single value is disclosed. The apparatus comprises means establishing a fixed reference point, first means movable with respect to the fixed reference point and adapted to measure one dimension of the object, second means movable with respect to the fixed reference point and adapted to measure a second dimension of the object, a fixed reference frame and indicating means wherein said first movable means and said second movable means are connected by motion transmitting means to the indicating means whose position with respect to the fixed reference frame is determined by the positions of said first and second movable means. In a particular embodiment, this invention relates to a device which can be used to measure the inside diameter and height of internal combustion engine air filters having the configuration of a hollow cylinder which device automatically combines the two measurements to obtain a single value that is read off a reference frame, the value comprising the model number of a replacement air filter.
REFERENCES:
patent: 1989252 (1935-01-01), Walter
patent: 3138876 (1964-06-01), Graham
Courtepatte Lawrence Alvin
Currie Kenneth Wilbur
Aegerter Richard E.
Little Willis
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