Actuating piston assembly, and seal therefor, for torque transmi

Details Actuating piston assembly, and seal therefor, for torque transmi Actuating piston assembly, and seal therefor, for torque transmi

1989-04-28

1990-11-20

Look, Edward K.

Expansible chamber devices

Annular working member or annular linearly extending chamber...

92254, 277152, 277181, 277189, 192 85AA, F01B 3100

Patent

active

049709453

ABSTRACT:
An actuating piston assembly (10, 110) for a torque transmitting device (11). The actuating piston assembly (10, 110) has a seal subassembly (35, 135) with a supporting annulus (36, 136) and a seal member (38, 138). The seal member (38, 138) is preferably bonded to the supporting annulus (36, 136). A generally radially oriented first wiping lip (55, 155) extends outwardly with respect to said seal subassembly (35, 135), and a generally radially oriented second wiping lip (56, 156) extends inwardly with respect to said seal subassembly (35, 135). A plurality of circumferentially spaced bores (41, 141) penetrate the supporting annulus (36, 136) and the seal member (38, 138). A plurality of dowel-like connecting rods (42, 142) are presented from at least selected bores (41 and 58 or 141 and 158).

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