Brake band servo for automatic transmission

Details Brake band servo for automatic transmission Brake band servo for automatic transmission

1995-03-06

1996-08-13

Denion, Thomas E.

Expansible chamber devices

With separate biasing means for working member

188 77R, 92165R, F01B 3100

Patent

active

055445659

ABSTRACT:
A servo for operating a brake band in an automatic transmission includes a transmission casing defining a cylinder, a servo piston supported for displacement within the cylinder, a piston stem defining a locking shoulder, a compression spring fitted over the piston stem, and a spring retainer fitted over the piston stem of the spring defining a shoulder resiliently engaging the shoulder formed on the piston stem.

REFERENCES:
patent: 3353637 (1967-11-01), Chana
patent: 4388986 (1983-06-01), Umezawa
patent: 4881453 (1989-11-01), Armstrong
patent: 5014599 (1991-05-01), Kocsis et al.
patent: 5018434 (1991-05-01), Haka

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