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. 26, 1981
Filed:
Nov. 06, 1978
Charles J Gudas, Lockport, IL (US);
Scholl, Inc., Chicago, IL (US);
Abstract
A shock absorbing, relatively rigid but resilient slab for insertion in footwear as an insole or for being built integrally into the sole of footwear, extends across the shoe width and lengthwise from the outer rear border of the heel to the metatarsal heads of the foot of the wearer, has a smooth top surface with a heel concavity and a varus heel ridge extending transversely from the lateral to the medial side and inclined upward to a high level at the medial side and then continuing medially to the rear end of the heel cup and with a bottom having a solid lateral edge mitigating shock at the initial heel contact and from which radiate circumferentially in a clockwise direction around the heel for an arc of about 30.degree. and then along the medial edge, a plurality of longitudinally spaced ribs increasing in width along their length toward the medial side providing rotors which develop an external rotational force on the heel and tibiofibular leg unit of the wearer to detorque the internal rotation of the leg unit and pronation of the sub-talar joints and cause supination of the foot.