Lightweight single tube crutch

Tent – canopy – umbrella – or cane – Canes – sticks – crutches – and walking aids – Crutches

Reexamination Certificate

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Details

C135S072000

Reexamination Certificate

active

07735500

ABSTRACT:
A height adjustable crutch includes a single tube member, a foot grip, an underarm support, and a handle. The single tube member has a central axis along which a main member, a telescoping top member, and a telescoping foot member are aligned. The top member is adjustable relative to a top end of the main member. The foot member is adjustable relative to bottom end of the main member. The foot grip is fixedly attached to the foot member, and the underarm support is fixedly attached to a top end of the top member. The underarm support is generally perpendicular to the central axis of the single tube member. The handle is fixedly attached to the main member and is offset from the central axis of the single tube such that a gap separates a central area of the handle and the main member.

REFERENCES:
patent: 1192290 (1916-07-01), Engstrom
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patent: 2116730 (1938-05-01), Menton
patent: 2429409 (1947-10-01), Eidman
patent: 3304946 (1967-02-01), Lutes
patent: 3416546 (1968-12-01), Carpenter
patent: 3417765 (1968-12-01), Slater et al.
patent: 4252138 (1981-02-01), Fowler
patent: 4509741 (1985-04-01), Smith
patent: 4846203 (1989-07-01), Tappel
patent: 4979533 (1990-12-01), Hansen et al.
patent: 5025820 (1991-06-01), Gamper
patent: 5139040 (1992-08-01), Kelly
patent: 5282486 (1994-02-01), Hoover
patent: 5845664 (1998-12-01), Ryder et al.
patent: 5954074 (1999-09-01), Mattson
patent: 6851438 (2005-02-01), Battiston
patent: 7104271 (2006-09-01), Larson et al.
Rehabilitation Research and Development Center, DVA Health Care System brochure entitled “The design of a complaint composite crutch” Palo Alto, California 94304 (18 pages) (Date estimated at least as early as May 16, 2007).
Millennial Medical—design by asi brochure entitled “Understanding Crutch Ergonomics” (10 pages) (Date estimated, based on document copyright date, at least as early as Dec. 31, 2004).

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