The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 1991
Filed:
Apr. 03, 1989
Thomas G Lapcevic, Pittsburgh, PA (US);
Other;
Abstract
An exercise apparatus in which the resistance force experienced by the exerciser may be varied is provided. The apparatus includes a support frame within which a weight support carriage having detachable weight members is supported for vertical movement. A shaft is rotatably mounted on the frame and an exercise bearing member which may be engaged by a user is secured to the shaft as well as a cable wheel having a peripheral cable guide track. A length of cable is secured at one end to the weight support carriage, reeved through cable guides and movably attached at its other end to the cable wheel. A supplemental cam member having a varying thickness is received within the guide track and is movable therein along guide members. The position of the supplemental cam member may be fixed at predetermined points along the guide track in order that the cable must ride thereon, thereby providing exercise resistance or force which varies with the thickness of the supplemental cam member. Alternatively, the supplemental cam member may be provided on the cable wheel of an apparatus wherein the exerciser directly engages a cable. Also disclosed are embodiments including variable moment arms as well as gearing to vary resistance patterns by the effect of their ratios.