Waterproof prosthetic foot and method of making same

Details Waterproof prosthetic foot and method of making same Waterproof prosthetic foot and method of making same

1977-11-28

1980-01-01

Crowder, Clifford D.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

12142EV, 36 4, 36 73, 156280, A61F 108

Patent

active

041808720

ABSTRACT:
An improvement for waterproofing a prosthetic foot of the type having a foot body surrounding a keel includes a layer of water repellent resilient material cemented to a bottom surface and front, rear and side edges of a lower portion of the foot body extending from the toe to the heel and a coating of water repellent material covering the top portion of the foot body and the interface of the edges of the layer of water repellent resilient material with the lower portion of the foot body such that the prosthetic foot can be immersed in water while the water is prevented from reaching the keel. A method of waterproofing a prosthetic foot includes the steps of cementing a substantially flat sole made of water repellent resilient material to the bottom surface of the foot body with a waterproof sealing adhesive, cementing a band of water repellent resilient material to the sole extending substantially transversely therefrom and to the front, rear and side edges of the lower portion of the foot body and coating the foot body with the water repellent material to cover the upper portion of the foot body and the interface of the edges of the band with the lower portion of the foot body.

REFERENCES:
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patent: 1972976 (1934-09-01), Bunham et al.
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patent: 2426211 (1947-08-01), Heckman
patent: 2789933 (1957-04-01), Bargmeyer
patent: 3400408 (1968-09-01), Garcia

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