Diaphragm operated electrical polarity reversing switch

Details Diaphragm operated electrical polarity reversing switch Diaphragm operated electrical polarity reversing switch

1992-05-29

1994-03-22

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

200 1V, 200 83N, H01H 900

Patent

active

052967476

ABSTRACT:
A reversing switch and more particularly a diaphragm operated electrical polarity reversing switch which has general utility but in the application the reversing switch is disclosed for use in combination with a vehicle mounted spray device including a discharge nozzle which may be used for applying chemicals, liquid fertilizers and other liquids such as when applying such materials alongside of roadways to effectively apply liquid throughout the width of the road right-of-way in which spray nozzles are mounted adjustably on a pivotal arm-type support assembly at the right front of a vehicle and a control arrangement is oriented in the cab of the vehicle to enable the vehicle operator to control the spray apparatus. A diaphragm is communicated with a pressurized supply line with the diaphragm being responsive to pressure in the supply line together with a control valve to direct flow to one of a plurality of different sized nozzles in order to maintain a constant pressure of liquid at each nozzle with any temporary variation in the pressure caused by switching from one nozzle to another being promptly corrected thus providing a constant flow rate and constant width of discharge of liquid from the nozzle.

REFERENCES:
patent: 2837611 (1958-06-01), Detwiler et al.
patent: 2996588 (1961-08-01), Putnam
patent: 3260816 (1966-07-01), Schad
patent: 4315602 (1982-02-01), Kubacak et al.
patent: 4525698 (1985-06-01), Louis et al.
patent: 4778353 (1988-10-01), Wiernicki
patent: 4875235 (1989-10-01), Kuhlman
patent: 4892985 (1990-01-01), Tateishi
patent: 5076497 (1991-12-01), Rabitsch

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