Rotary damper assembly

Details Rotary damper assembly Rotary damper assembly

2005-10-11

2005-10-11

Keasel, Eric (Department: 3754)

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

C251S077000, C251S344000, C251S345000

Reexamination Certificate

active

06953184

ABSTRACT:
An apparatus for regulating flow of fluid received from a fluid source has an inner cylinder with inlet and outlet apertures, and an outer cylinder that also has inlet and outlet apertures. The inner cylinder is nested within the outer cylinder and rotatable with respect to the outer cylinder to control an amount of registration of the outlet apertures of the inner and outer cylinders to regulate flow of fluid through the apparatus. A motor is coupled to the inner cylinder by an axially symmetrical motor output shaft and mating recess of the inner cylinder, with crush ribs to eliminate axial play. The motor mounting arrangement is configured to mount the motor to the outer cylinder such that the motor floats within the motor mounting arrangement.

REFERENCES:
patent: 4169491 (1979-10-01), Bajka
patent: 4425813 (1984-01-01), Wadensten
patent: 4431161 (1984-02-01), Miller et al.
patent: 4909212 (1990-03-01), Minowa et al.
patent: 5242150 (1993-09-01), Shiffler et al.
patent: 5877572 (1999-03-01), Michaels et al.
patent: 6240735 (2001-06-01), Kolson et al.

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