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:
May. 05, 1998
Filed:
Mar. 13, 1996
David H Littig, Ventura, CA (US);
United States Manufacturing Company, Pasadena, CA (US);
Abstract
A stance phase flexion device for a prosthesis comprises a composite C-shaped spring member formed from a plurality of thermoset synthetic resin-impregnated high strength carbon filament sheets molded together in a compression mold. The spring member includes a standard hole pattern located in an upper leg of the spring and a standard hole pattern on the lower leg of the spring, for connecting the spring between adjacent prosthetic components for simulating normal flexion between the adjacent components. The C-shaped member is normally rigid in a rest position maintaining its C-shaped configuration. The C-shaped member has spaced apart upper and lower legs that elastically flex with energy absorbing compliance under a load tending to move the upper and lower legs together. The C-shaped member essentially resists elastic flexion in lateral directions and resists torsion loads.