Apparatus for operating a valve element

Details Apparatus for operating a valve element Apparatus for operating a valve element

1993-06-18

1994-07-12

Hepperle, Stephen M.

Valves and valve actuation

Electrically actuated valve

Having element dimensionally responsive to field

2511292, F16K 1102

Patent

active

053281497

ABSTRACT:
In an apparatus for operating a valve element consisting of a base, an operating lever pivotally journalled with respect to the base and a drive apparatus which is secured to the base and engages the operating lever which has at least one of its ends for operating on the valve element, the drive apparatus comprises two piezo-electric transistors which are secured with a nonparallel orientation between the base and the operating lever such that they are each moveable relative to the base and the operating lever about an axis parallel to the pivoting or rocking axis of the operating lever.

REFERENCES:
patent: 4787071 (1988-11-01), Kreuter et al.
patent: 5040567 (1991-08-01), Nestler et al.
patent: 5076314 (1991-12-01), Ikehata et al.
patent: 5094429 (1992-03-01), Dostert

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