Apparatus for controlling the activation and de-activation of a

Details Apparatus for controlling the activation and de-activation of a Apparatus for controlling the activation and de-activation of a

1979-02-08

1980-09-30

Nase, Jeffrey V.

Conveyors: fluid current

With means to control conveying fluid or movement of load in...

Control of conveying fluid

15314, 406 26, 406117, B65G 5366

Patent

active

042252725

ABSTRACT:
An apparatus for controlling the activation and deactivation of a vacuum assembly which is connected to a conduit system such as a suction conveyance system or a central cleaning system for maintaining a partial vacuum in the conduit system which has suction sockets which may be opened for coupling in vacuum-driven appliances and which are preferably self-closing when the vacuum-driven assemblies are disconnected is provided with a first sensing device and a second sensing device. The first sensing device is operative to sense that state in which all of the suction sockets are closed, in order to emit a stop signal to the vacuum assembly. The second sensing device is operative to sense the opening of one or more suction sockets, in order to emit a start signal to the vacuum assembly.

REFERENCES:
patent: 1106231 (1914-08-01), Marshall
patent: 1618667 (1927-02-01), Melcher
patent: 2914789 (1959-12-01), Scanlan et al.
patent: 3048875 (1962-08-01), Bottinelli et al.
patent: 3382524 (1968-05-01), Sandstrom

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