Variable resistance exercising device

Details Variable resistance exercising device Variable resistance exercising device

1980-04-21

1983-03-08

Shapiro, Paul E.

Undertaking

A63B 2106, A63B 2120

Patent

active

RE0311707

ABSTRACT:
Disclosed is an exercising device in which stacked weights are manipulated by the user through a lever arm. A selected quantity of weights is raised and lowered on vertical guide rods by a lift rod. The lever arm is pivoted to the frame of the device and passes through a yoke in the upper end of the lift rod. A roller mounted in the yoke is carried on the upper surface of the lever arm. The lever arm is substantially horizontal when the device is at rest and as the lever arm is raised, the roller on the lift rod moves on the lever arm to reduce the user's mechanical advantage and increase his effective load. Also, as the lever arm is raised through its pivotal arc, a vectoring of the lifting force occurs, varying the portion of that force which is devoted to lifting of the weights, and thereby further increasing the effective load on the user. Further variations in resistance are possible by contouring the upper surface of the lever arm or the roller.

REFERENCES:
patent: 564860 (1896-07-01), Wilson
patent: 684688 (1901-10-01), Herz
patent: 867511 (1907-10-01), Karns
patent: 2932509 (1960-04-01), Zinkin
patent: 2992048 (1961-07-01), Longhurst
patent: 3306611 (1967-02-01), Gaul
patent: 3612523 (1971-10-01), Glynn
patent: 3638941 (1972-02-01), Kulkens
patent: 3734495 (1973-05-01), Nist et al.
Here's Power for You, David Manners, .COPYRGT.1972, pp. 10, 11, 104, 110 & 122.
Notice of Motion and Motion, Points and Authorities with Exhibits 1-7 of Plaintiff in Civil Action No. 79-4868-AAH, U.S.D.C. for C.D. of Ca.
Defendents Response to Plaintiff's Motion, Statement of Genuine Issues, Mazman Affidavit in Civil Action 79-4868-AAH, U.S.D.C. for C.D. of Ca.
Plaintiff's Reply with Exhibits 1-7, Civil Action No. 79-4868-AAH, U.S.D.C. for C.D. of Ca.

Affiliated with

Also associated with

Rating

Variable resistance exercising device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable resistance exercising device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable resistance exercising device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1731815