Pneumatic control system

Details Pneumatic control system Pneumatic control system

1982-07-16

1985-01-29

Michalsky, Gerald A.

Fluid handling

Systems

Programmer or timer

137607, 13762418, 137870, 137883, 91 36, F16K 1110

Patent

active

044959680

ABSTRACT:
A pneumatic control system for machinery and the like which have a plurality of intermittently operated pneumatic use points or work stations. The system includes a common pneumatic source of sufficient capacity to maintain a predetermined minimum pressure level during the operating sequence of the system, a line connecting each use point to the common source, and a non-pressure responsive, selectively adjustable, throttling valve interposed in each connecting line for establishing a desired pressure at the use point relative to the pressure of the common source. The system is controlled such that the use points draw upon the common source in a predetermined sequence and rate such that the total capacity demand on the common source remains substantially constant, and thus the use point pressures remain constant without the need for relatively expensive pressure regulator valves in the respective use point connecting lines.

REFERENCES:
patent: 964719 (1910-07-01), Wegescheidt
patent: 1786969 (1929-11-01), Van Der Heuel
patent: 2332244 (1943-10-01), Martin
patent: 2796789 (1957-06-01), Rice et al.
patent: 3139111 (1964-06-01), Schneider et al.
patent: 3385572 (1965-06-01), Luoma
patent: 3530891 (1970-09-01), Welland
patent: 3533442 (1970-10-01), Lange
patent: 4004497 (1977-01-01), Scholin et al.
patent: 4076211 (1978-02-01), Krechel et al.
patent: 4191215 (1980-03-01), Gonner

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