Patent · US Expired

Shock absorbing sole layer

US4535553A · kind A · utility

239Cited by

24References

41Claims

0Family size

Assignee

NIKE, Inc. · US

Inventors

Thomas Derderian · Exeter, US
Edward C. Frederick · Brentwood, US
Alexander Gross · Babenhausen, DE

Key dates

Filing date	Sep 12, 1983
Grant date	Aug 20, 1985
Priority date	—
Expiry date	Sep 12, 2003

Classification

Technology area (CPC A)Human Necessities
CPC primaryA43B13/181
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A shock absorbing sole member used in an athletic shoe having an upper and a sole is disclosed. The shock absorbing sole member is comprised of an insert member and elastomeric foam encasing the insert member. The insert member is formed of resilient plastic material and includes a plurality of transversely and longitudinally spaced discrete shock absorbing projections. The elastomeric foam has a low hardness, less than 70 on the Asker C scale.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.