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:
Aug. 27, 1996
Filed:
Sep. 30, 1993
Applicant:
Inventor:
William E Bryant, Everett, WA (US);
Assignee:
M+IND (Model + Instrument Development), Seattle, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
623 53 ; 623 55 ;
Abstract
A prosthetic foot having a keel formed by a flexible sole plate connected to the lower end of an ankle portion that is attachable to a user's leg or leg prosthesis. A plurality of resilient bending ribs extend from the angle portion to spaced apart locations on the upper surface of the sole plate to resiliently bias the sole plate to a neutral configuration. As the forward portion of the sole plate is progressively loaded, the sole plate flexes causing the bending ribs to deflect until they successively stack up against each other, thereby progressively stiffening the keel.