Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Reexamination Certificate
2006-12-19
2006-12-19
Donnelly, Jerome (Department: 3764)
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
C482S139000, C482S098000
Reexamination Certificate
active
07150701
ABSTRACT:
Cable-and-pulley devices having intermediate tension isolators for exercise machines. In one embodiment, a cable-and-pulley device includes a cable attached to a load and to a user interface, and operatively engaged with a main pulley positioned over the load, a floating pulley, and an end pulley proximate the user interface. A second user interface is attached to the floating pulley. A tension isolator is positioned on the cable at an intermediate position between the end pulley and the floating pulley so that a training force applied on a second user interface draws the tension isolator into contact with the an isolator stop. In one embodiment, the isolator stop is an intermediate pulley. Alternately, the isolator stop is a catch projecting from a frame of the exercise machine. The tension isolator effectively divides the cable into a tensioned portion and an isolated portion, thereby reducing the amount of cable that is stretched during use of the second user interface. In alternate embodiments, the tension isolator may include a stop mechanically secured to the cable, or a coupling member coupled between the tensioned portion and the isolated portion. Alternately, the tension isolator may be integrally formed with the cable. In other alternate embodiments, a cable-and-pulley device may include a plurality of tension isolators positioned on one or more of the cables.
REFERENCES:
patent: 931699 (1909-08-01), Medart
patent: 4721301 (1988-01-01), Drake
patent: 5054773 (1991-10-01), Parviainen
patent: 5267930 (1993-12-01), Henes
patent: 5518477 (1996-05-01), Simonson
patent: 5624362 (1997-04-01), Wilson
Ish, III A. Buell
Lines L. Kent
Donnelly Jerome
Lee & Hayes PLLC
Vectra Fitness, Inc.
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