Vacuum-actuated pick-up instrument

Details Vacuum-actuated pick-up instrument Vacuum-actuated pick-up instrument

1974-04-22

1976-02-24

Blunk, Evon C.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

15419, 251344, B25J 700

Patent

active

039401723

ABSTRACT:
A pencil-size instrument body has a manually operable valve to control an air passage connected to a vacuum source. A first hollow axle projecting forward from the body carries a rotary finger control member. A rigid air tube of small diameter is mounted by one end in a second hollow axle and constitutes therewith a replaceable probe assembly that plugs into the first hollow axle. A rotary hub member on the second hollow axle is operated by the rotary finger control member and is connected to the end of a coil spring that rotatably embraces the rigid air tube. The second end of the coil spring is connected to a rotary tip member on the rigid air tube that picks up small objects by vacuum action and rotates the objects under control of the finger control member.

REFERENCES:
patent: 1449358 (1923-03-01), Weber
patent: 3071402 (1963-01-01), Lasto et al.
patent: 3843183 (1974-10-01), Hutson
IBM Technical Disclosure Bulletin; Delgado et al.; "Vacuum Pick-up Device," Vol. 9, No. 7, Dec. 1966, p. 950.
Western Electric; Brossman; "Improved Vacuum Pick-up Tool for Semiconductor Wafers"; T.D. No. 27, July 1972, p. 3.

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