A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
A63B 69/16 (2006.01) A63B 21/008 (2006.01) F16D 57/00 (2006.01) F16F 9/12 (2006.01) A63B 23/04 (2006.01)
Patent
CA 2146279
A rotary viscous damper having a disc surrounded by a housing and cover, the disc rotatable with a shaft which penetrates the housing, a gap provided between opposite sides of the disc and the inside surfaces of the housing and cover for receiving viscous fluid, and triangularly shaped indentations formed on opposing surfaces of said disc and said housing and cover, said indentations on said housing and said cover arranged at selective rotational positions. Rotation of said disc aligning opposing indentations on said discs and said housing and cover to create a rotary position of minimum torque and when misaligned, a rotary position of maximum torque. The oscillating torque value creates a nominal torque associated with the damper, but can be selectively installed to present a minimum torque at a particular rotational position. The invention is particularly adapted to rotary devices where rotational position can effect the available torque for driving the shaft, such as an exercise bicycle.
Pukalo Walter P.
Warchocki Mark
Cassan Maclean
Vibratech Inc.
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