Patent ID: 6571682
Filing Date: 2003-06-03
Classification: F15B

Abstract:
Apparatus for converting circular motion into radial motion comprisinga toroidal hollow housing having a circumferential inner wall and first and second outer side walls, a plurality of partition members fixedly disposed inside said hollow housing and in fluid-tight relationship to said inner wall of said housing and at spaced apart locations around said toroidal hollow housing, said partitions dividing said housing into a plurality of individual chambers, a plurality of piston members disposed within respective ones of said plurality of individual chambers, each of said piston members being slidable within its respective chamber and between a first position adjacent a first one of said partition members and a second position adjacent a second one of said partition members, a fluid flow passageway from a location internally of each of said individual chambers and between said piston and one of said partition members to a source of pressurized fluid, a plurality of linkages, each having a proximal end and a distal end, operatively associated with said housing and said piston members whereby circular movement of said pistons within said housing produces substantially radial displacement of said distal end of each linkage.