Orthopaedic footwear

Details Orthopaedic footwear Orthopaedic footwear

1976-12-15

1978-10-17

Lawson, Patrick D.

Boots, shoes, and leggings

Boots and shoes

Rubber

36 57, A43B 110, A43B 2300

Patent

active

041201019

ABSTRACT:
An article of orthopaedic footwear comprises an upper of thermosoftening plastics material, e.g. a vinyl polyer, having a lining of resilient expanded thermosoftening plastics material of closed cell construction, e.g. an expanded cross-linked polyethylene. The upper has an autogenously welded seam covered externally by a strip of thermosoftening plastics material, e.g. a vinyl polymer, autogenously welded to the upper on both sides of the seam, e.g. by longitudinal and/or transverse welds. The article can be shaped by forming and/or cutting the upper.

REFERENCES:
patent: 1519009 (1924-12-01), Reina
patent: 1739612 (1924-12-01), Riley
patent: 2433228 (1947-12-01), Hollier
patent: 2599116 (1952-06-01), Margulis
patent: 2724676 (1955-11-01), Randall et al.
patent: 3530489 (1970-09-01), Appleton

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