Dolly assembly

Details Dolly assembly Dolly assembly

2008-04-03

2010-10-19

Phan, Hau V (Department: 3618)

Land vehicles

Wheeled

Body with bracketed-type or nonsuspended axles

C280S043210, C414S428000

Reexamination Certificate

active

07815201

ABSTRACT:
A dolly assembly for use in towing a disabled vehicle, preferably including a main tube with a dolly wheel mounted at each end, and a method of using same. In one preferred embodiment, the main tube is capable of selective expansion or contraction along its longitudinal axis, to facilitate adjustment and placement of dolly axle assemblies connecting opposed, generally parallel dolly assemblies. Force leveraging mechanisms may be used to aid the selective expansion or contraction of the main tube, such as ratchet or rack and pinion mechanisms. In an alternative embodiment, and for ease in transport, the dolly assembly may be pivotably collapsed along its main tube about either a vertical or horizontal axis.

REFERENCES:
patent: 1275716 (1918-08-01), Maurer, Jr.
patent: 2380415 (1945-07-01), Carruthers
patent: 4690605 (1987-09-01), Coccaro
patent: 4692082 (1987-09-01), Smith
patent: 4854803 (1989-08-01), Coccaro
patent: 5505578 (1996-04-01), Fuller
patent: 5941675 (1999-08-01), Orr
patent: 6789994 (2004-09-01), Tortellier
patent: 7097406 (2006-08-01), Gang
patent: 7232138 (2007-06-01), Shubert
patent: 7275753 (2007-10-01), Ceccarelli et al.
patent: 7597524 (2009-10-01), Hernandez
The Speed Dolly Operations Manual; In the Ditch Towing Products; www.InTheDitch.com.
The Speed Dolly; Speed Dolly Brochure; http://www.intheditch.com/speeddollyL3.htm.
Zendex Tool Corporation, American Tool Builders; GoJak; 2007 Zendex Tool Corporation; http://www.zendextool.com/gojak/How-GoJak-Works.html.
Rack and pinion; From Wikipedia, the free encyclopedia; http://en.wikipedia.org/wiki/Rack—and—pinion.
Ratchet (device); From Wikipedia, the free encyclopedia; http://en.wikipedia.org/wiki/Ratchet—%28device%29.

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