Power plants – Pressure fluid source and motor – Pulsator
Patent
1997-12-29
1999-11-09
Ryznic, John E.
Power plants
Pressure fluid source and motor
Pulsator
92121, 92122, 92128, 92143, F01C 900, F15B 700
Patent
active
059791632
ABSTRACT:
A rotationally pivotal motion controller pivotally interconnects two adjoining elements and controls the pivotal motion of a first of the two adjoining elements with respect to a second of the two adjoining elements. The rotationally pivotal motion controller comprises a housing having a wall which defines an axial cylindrical bore through the housing. The wall is adapted for attachment to a first of the two adjoining elements and the wall also has a longitudinal aperture therethrough which communicates with the bore. A hub assembly comprises a hub which is at least partially disposed within the cylindrical bore of the housing and is axially rotatable therein. The hub has a substantially central cylindrical core and at least one lobe extending radially from the core. At least one end cap is affixed to one end of the hub to retain the hub in a fixed, fluidically sealed, axial relationship within the housing. The hub and the housing together define at least one fluid retention cavity. The hub assembly is adapted for attachment to a second of the two adjoining elements. A removable wiper is positioned in the aperture and is sealingly affixed to the housing. The wiper extends radially inwardly from the housing wall within the fluid retention cavity and extends to the central cylindrical core thereby dividing the fluid retention cavity into a first minor cavity and a second minor cavity.
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Bodony Charles P.
Hanners H. Steven
Circular Motion Controls, Inc.
Ryznic John E.
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