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. 31, 1989
Filed:
Dec. 01, 1987
James F Airy, Bellevue, WA (US);
Thomas D Kadavy, Bellevue, WA (US);
Soma Dynamics Corporation, Bellevue, WA (US);
Abstract
A portable appliance (10) which is worn by the user to exercise a body joint includes an articulating frame (12) composed of a pair of laterally, spaced-apart pivot arms (14a, 14b) connectible to a first limb of the body joint and pinned to a second pair of spaced-apart pivot arms (16a, 16b) connectible to the second limb of the body joint. A rotatably actuated, fluid cylinder assembly (22) is mounted on the first pivot arms (14a, 14b) on the extendible side of the body joint. The cylinder assembly (22) includes a piston (24) threadably engaged within an elongated piston rod (26). A transmission system transmits the relative rotational movement between the frame arms (14a, 14b) and the frame arms (16a, 16b) to the piston rod (26) thereby to actuate the piston (24). Adjustable flow control devices control the flow of fluid within the cylinder assembly (22) to apply isotonic, isokinetic or dynamic resistance to the flexing or extending of the body joint being exercised.