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Spring-supported shoe appliance
申请号	US44476274	申请日	1974-02-22	公开(公告)号	US3875688A	公开(公告)日	1975-04-08
申请人	LAWRENCE PESKA ASS INC;			发明人	MCNAUGHTON HENRY;
摘要	A spring-supported shoe appliance comprising a support plate, a helical spring at the underside of the plate and means for securing the plate having the spring attached thereto, to the user''s foot. The appliance may include a flexible curtain or sleeve surrounding the spring.
权利要求	1. A spring-supported shoe appliance, comprising: a. a support plate comprising first and second opposite major surfaces and a rim portion at said first surface; b. a single helical spring having one end disposed at said first major surface and connected to said support plate said spring being disposed partially within said rim portion; and c. means for removably securing said support plate to said shoe, said shoe engaging said support plate at said second surface. 2. A spring-supported shoe appliance as defined in claim 1, wherein said support plate comprises plural apertures and said securing means comprises a flexible strand laced through said apertures. 3. A spring-supported shoe appliance as defined in claim 1, further comprising a flexible sleeve element suspended from said support plate and surrounding said spring. 4. A spring-supported shoe appliance as defined in claim 1, wherein the lateral portions of said spring extend beyond those of said shoe of the person utilizing said appliance. 5. A spring-supported shoe appliance as defined in claim 1, wherein said support plate comprises plural apertures and said securing means comprises a flexible strand laced through said apertures, and wherein an end portion of said spring is disposed between said support plate and a portion of said flexible strand.
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