Motors: expansible chamber type – Fluid supply through diverse paths to single expansible chamber – Position responsive
Patent
1980-04-14
1984-03-06
Hershkovitz, Abraham
Motors: expansible chamber type
Fluid supply through diverse paths to single expansible chamber
Position responsive
91 39, 91409, 91422, 1376242, F15B 1522
Patent
active
044347049
ABSTRACT:
An apparatus for converting pressure into motion includes a housing having a plurality of ports formed therein. Movably disposed within the housing is a piston having a first plurality of apertures communicating with a first chamber and a second plurality of apertures communicating with a second chamber therein. The piston is positioned within the housing so that the apertures can register with consecutive ones of the ports as the piston is moved in either of two directions within the housing. The movable member is moved by a pressurizing substance applied to a selectable one of the ports through an appropriate valve circuit. The valve circuit is operated by excitation signals from a control member. By operating the valve circuit in an appropriate sequence, the pressurizing substance is sequentially applied to consecutive ones of the ports to move the piston longitudinally through the housing.
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Gilbert III E. Harrison
Halliburton Company
Hershkovitz Abraham
Walkowski Joseph A.
Weaver Thomas R.
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