Differential pressure detecting system

Details Differential pressure detecting system Differential pressure detecting system

1995-12-05

1997-03-18

Ryznic, John E.

Motors: expansible chamber type

With signal, indicator or inspection means

91401, F01B 2526, F01B 3112, F15B 1522

Patent

active

056112564

ABSTRACT:
The main feature of the differential pressure detecting system of the present invention resides in that, when a mechanical arm is to clamp a workpiece, a differential pressure can be produced for operating a cylinder and in turn triggering a responsive switch to activate a display device; when it clamps the workpiece, the differential pressure still exists for maintaining the said activating, when it clamps nothing, the cylinder will be restored and in turn turn off the responsive switch to turn off the display device.

REFERENCES:
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patent: 2784704 (1957-03-01), Meats
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patent: 3410180 (1968-11-01), Spangler et al.
patent: 3831379 (1974-08-01), Lixenfeld et al.
patent: 4240326 (1980-12-01), Carle
patent: 4240620 (1980-12-01), Tunkers
patent: 4337687 (1982-07-01), Hoover
patent: 4407150 (1983-10-01), Kelly
patent: 4470280 (1984-09-01), Kelly

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