Brakes – Internal-resistance motion retarder – Using a rotary-type fluid damper
Reexamination Certificate
2006-12-26
2006-12-26
Kramer, Devon (Department: 3683)
Brakes
Internal-resistance motion retarder
Using a rotary-type fluid damper
C188S082200, C188S064000
Reexamination Certificate
active
07152718
ABSTRACT:
A damper includes a frame, a main gear mounted to the frame for rotation about an axis of rotation, and a spring operably connecting the main gear and the frame such that rotation of the main gear tensions the spring. The main gear has a circumferential recess formed therein that defines a circumferential channel or reel. An elongated flexible member is wrapped around the main gear, disposed within the circumferential channel. A gear damper is mounted to the frame and is operably engaged with the main gear to dampen rotational movement of the main gear. The damper can be configured for one-way and two-way damping.
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English Translation of Tanaka et al (JP 11-2064).
Bivens Steven L.
Doornbos David A.
Croll Mark W.
Donovan Paul F.
Illinois Tool Works Inc
Kramer Devon
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