Method for operating a valve

Details Method for operating a valve Method for operating a valve

1989-04-03

1990-05-22

Miller, Jr., George H.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346160R, 346 75, G01D 900

Patent

active

049281119

ABSTRACT:
The present invention relates to a method for operating an electromagnetic valve means comprising a valve plunger journalled within a valve body for movement under the influence of an electric current on a drive stroke from a valve closed position to a valve open position, which valve means controls the flow of fluid to a nozzle orifice in a non-contact fluid droplet applicator apparatus, notably an ink jet printer, which method comprises intermittently applying a transient drive current to the valve means which is insufficient to move the plunger sufficiently on its drive stroke towards the valve open position to permit the flow of fluid through the valve.

REFERENCES:
patent: 4378564 (1983-03-01), Cross et al.
patent: 4539570 (1985-09-01), Moore
patent: 4780728 (1988-10-01), Post

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