Walkers

Details Walkers Walkers

1995-10-20

1997-02-18

Boehler, Anne Marie

Land vehicles

Step or abutment ascending type vehicle

With spider-type engaging means

280641, 280 87021, 135 67, 188 112, 188 29, 297 5, 301 43, A61H 304

Patent

active

056035179

ABSTRACT:
A rollable walker for traversing stairs and substantially level surfaces, comprising a frame which includes a left and a right upright members, the left and right upright members including front legs, and an upper segment. The frame further includes a crossbar which is pivotaly connected to the left and a right upright members, the crossbar including a generally U-shaped transverse element and vertically disposed segments acting as rear legs. The crossbar is supported by supporting means. The supporting means is attached or integrally formed with the left and right upright members. A pair of rear wheels and a pair of front wheels engaged by wheel mounts, each wheel having two vertical planar surfaces. The rear wheels are connected to the rear legs, whereas the front wheels are connected to the front legs. The vertical planar surfaces of the wheels are surrounded by protrusions; and, two pairs of braking devices connected to the rear and front legs, each of the braking devices is slidably supported by one of the wheel mounts over one of the wheels in such a way that the application on the frame of a downward force of a magnitude greater than a pre-determined value urges the braking devices against the wheels to brake the walker.

REFERENCES:
patent: D181957 (1958-01-01), Callahan
patent: 1446427 (1923-02-01), Matteson
patent: 1709527 (1929-04-01), Ford
patent: 1917440 (1933-07-01), Finkbeiner et al.
patent: 2077569 (1937-04-01), Kish
patent: 2658587 (1953-11-01), Velazquez
patent: 2708473 (1955-05-01), Gable et al.
patent: 2958537 (1960-11-01), Young
patent: 3090470 (1963-05-01), Abrams
patent: 3174768 (1965-03-01), Sanders et al.
patent: 3176700 (1965-04-01), Drury, Jr.
patent: 3200907 (1965-08-01), Hansen
patent: 3237940 (1966-03-01), Johnson
patent: 3279567 (1966-10-01), Kempel
patent: 3350095 (1967-10-01), Clasen
patent: 3356185 (1967-12-01), Isaacks
patent: 3387617 (1968-06-01), Reiber
patent: 3387618 (1968-06-01), Swann
patent: 3421529 (1969-01-01), Vestal
patent: 3455313 (1969-07-01), King
patent: 3658079 (1972-04-01), Block
patent: 3800815 (1974-04-01), Birk
patent: 3840034 (1974-10-01), Smith
patent: 4018440 (1977-04-01), Deutsch
patent: 4029311 (1977-06-01), Chanslor et al.
patent: 4094331 (1978-06-01), Rozza
patent: 4211309 (1980-07-01), Ruggiero
patent: 4312505 (1982-01-01), Engelhart
patent: 4384713 (1983-05-01), Deutsch et al.
patent: 4385769 (1983-05-01), Molino
patent: 4411283 (1983-11-01), Lucarelli
patent: 4461471 (1984-07-01), Brastow
patent: 4633980 (1987-01-01), Lambertson
patent: 4643211 (1987-02-01), Morris
patent: 4765355 (1988-08-01), Kent
patent: 4777973 (1988-10-01), Nakajima
patent: 4830035 (1989-05-01), Liu
patent: 4869279 (1989-09-01), Hedges
patent: 4883282 (1989-11-01), Wolf et al.
patent: 4922940 (1990-05-01), Lewy
patent: 4941496 (1990-07-01), Berning
patent: 5020560 (1991-06-01), Turbeville
patent: 5046748 (1991-09-01), Oat-Judge
patent: 5058912 (1991-10-01), Harroun
patent: 5263506 (1993-11-01), Norramore
patent: 5271422 (1993-12-01), Sorrell et al.
patent: 5277438 (1994-01-01), Chuang

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