Boots – shoes – and leggings – Boots and shoes – Convertible from one style or color to another
Patent
1980-05-20
1982-03-02
Lawson, Patrick D.
Boots, shoes, and leggings
Boots and shoes
Convertible from one style or color to another
36 36B, A43B 324, A43B 2136
Patent
active
043172946
ABSTRACT:
A replaceable shoe sole is comprised of a mid-sole, which is securely attached to the upper portion of the shoe, and an out-sole removeably attached to the mid-sole. The upper surface of the out-sole is provided with a continuous ridge which is snapped into a matching, deformably resilient groove recessed into the bottom surface of the mid-sole. The configuration of the ridge and the resiliency of the out-sole and the mid-sole material, which is preferably a polyurethane resin or foam, permits the out-sole to be easily and selectively removed and replaced by an out-sole having a new or distinctive tread pattern, the replaced out-sole being reusable if desired. The ridge on the out-sole is provided with an undercut portion to provide secure retention of the out-sole in the mid-sole, although the specific cross sectional shape of the ridge may vary depending upon the retentiveness required by a particular activity.
REFERENCES:
patent: 2183277 (1939-12-01), Heilhecker
patent: 2368314 (1945-01-01), Mary
patent: 2760279 (1956-08-01), Jones et al.
patent: 3019534 (1962-02-01), Kauffman et al.
patent: 4267650 (1981-05-01), Bauer
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