Pneumatic ball drop checker device and method

Details Pneumatic ball drop checker device and method Pneumatic ball drop checker device and method

1989-04-03

1990-08-14

Williams, Hezron E.

Measuring and testing

With fluid pressure

Dimension, shape, or size

73 37, G01B 1300

Patent

active

049476769

ABSTRACT:
A pneumatic sensing device is presented which automatically senses the motion of a ball falling into a can. A sensing arm protrudes into the pathway of the dropping ball. When the ball hits one end of the arm, the other end of the arm rotates upward and closes off an exhaust port, creating a back pressure in a proximity switch. The proximity switch then sends a pneumatic signal to a four-way valve that allows the now filled can to move on to the next work station. Also presented is a method of using the sensing arm which uses a regulator and indicator to display when the ball drop station has been energized but the ball has failed to drop.

REFERENCES:
patent: 3893493 (1975-01-01), Foirest et al.
patent: 3995666 (1976-12-01), Michaels
patent: 4582102 (1986-04-01), Rieser

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