Position-sensing cylinder

Details Position-sensing cylinder Position-sensing cylinder

G - Physics

01

P

340/137

G01P 13/00 (2006.01) F15B 15/28 (2006.01)

Patent

CA 1180916

POSITION-SENSING CYLINDER Abstract of the Disclosure A position-sensing cylinder includes a hollow housing within which reciprocates a piston fixed to a hollow rod. A hollow fitting is threadably attached to one end of the housing. A hollow metallic insert is press fitted into the hollow fitting. An elongated potentiometer support is received by and welded to the insert and is reciprocally received by the hollow rod. The support includes curved edges which slidably engage the wiper wall of the hollow rod and includes a planar support surface upon which are mounted resistive and conductive potentiometer strips. A hollow wiper carrier is mounted for movement with the piston and rod so that support reciprocates within the carrier and so that conductive wipers are maintained in contact with the potentiometer strips. The wiper carrier cooperates with the rod and the support to substantially prevent fluid flow in the vicinity of the wipers.

408261

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