Patent ID: 6761105
Filing Date: 2004-07-13
Classification: F15B

Abstract:
A fluid-operated piston-type actuator comprising:a body having first and second axial ends and an inner surface that defines a bore that opens through at least one of said first and second axial ends to define an open end of said bore; a piston slidably positioned in said bore; an end wall positioned in blocking relation with said open end of said bore, said end wall comprising: (i) a peripheral surface that defines a first circumferentially extending groove that is axially aligned with a second circumferentially extending groove defined in said inner surface of said body; and, (ii) an inner face oriented toward said piston and an opposite outer face oriented away from said piston, said first groove located axially between said inner and outer faces, said outer face covering and blocking access to a majority of said first groove and comprising at least one notch defined therein that intersects said first groove, wherein said at least one notch is the only access opening to said first and second grooves; a retaining band located partially in both said first and second grooves, said retaining band resiliently expanded radially into abutment with an outer wall of said second groove and extending for at least 360Â° within said first and second grooves, wherein said band is selectively removable from said first and second grooves only via said at least one notch.