Land vehicles – Wheeled – Extensible
Patent
1994-07-29
1995-04-04
Johnson, Brian L.
Land vehicles
Wheeled
Extensible
280651, 280 4734, 280 7911, 280 47371, B62B 302
Patent
active
054030234
ABSTRACT:
A luggage truck, including a base equipped with wheels in the corners at the bottom thereof and having a track and a slide moved along the track, a pull arm extended upward from the front end of the base, a handle coupled to the pull arm, an extension member connected between the handle and the slide, and two wheel holders pivotally mounted on the base at the bottom and bilaterally engaged with the slide to hold a respective wheel, wherein when the extension member is pulled out of the pull arm after the handle has been released from the pull arm, the slide is pulled forward causing the movable wheel holders to turn outwards and to extend out of two opposite sides of the base; when the extension member is pushed back inside the pull arm, the slide is moved back causing the movable wheel holders to turn inward and to be received inside the base at the bottom.
REFERENCES:
patent: 3329442 (1967-07-01), Di Vietri
patent: 3842953 (1974-10-01), Royet
patent: 3960252 (1976-06-01), Cassimally
patent: 4060252 (1977-11-01), Mowery
patent: 4087102 (1978-05-01), Sprague
patent: 4273222 (1981-06-01), Cassimally et al.
patent: 4761012 (1988-08-01), Dames et al.
patent: 4771871 (1988-09-01), Lambracht
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