Boots – shoes – and leggings – Boots and shoes – Convertible from one style or color to another
Patent
1996-10-03
1997-12-02
Kavanaugh, Ted
Boots, shoes, and leggings
Boots and shoes
Convertible from one style or color to another
36 36A, 36 36B, 36 42, 482 79, A43B 324, A43B 2140, A43B 2310
Patent
active
056923228
ABSTRACT:
Combination athletic shoes and plyometric training devices are disclosed. The said shoes having removable heels that include a snap-lock track slide retainer fixedly disposed in the sole at the instep of the athletic shoe, a heel track slide retainer fixedly disposed in the sole at the heel of the athletic shoe and having a lower surface with a female portion of a dovetail joint therein, and a heel track slide with integral forward snap-lock insert fixedly attached to the heel of the athletic shoe and having a male portion of a dovetail joint on the top thereof that slidably engages the female portion of the dovetail joint in the lower surface of the heel track slide retainer and which is releasibly retained thereto by a release disposed on the bottom of the athletic shoe. This arrangement allows for the athletic shoe to function in a combination use in that without the heel in place the shoe can be used as plyometric type strength training device for the lower leg muscles. With the heel attached, this arrangement allows for a means of preventing any movement or inadvertent detachment of the heel, thus allowing the shoe to function as a regular use athletic shoe.
REFERENCES:
patent: 1888617 (1932-11-01), Bridi
patent: 2466611 (1949-04-01), Nicoletti
patent: 2582551 (1952-01-01), Malherbe
patent: 4214384 (1980-07-01), Gonzalez
patent: 5373649 (1994-12-01), Choi
patent: 5419060 (1995-05-01), Choi
patent: 5519950 (1996-05-01), Wang
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