Land vehicles – Wheeled – Articulated vehicle
Reexamination Certificate
2001-08-28
2004-04-27
DePumpo, Daniel G. (Department: 3611)
Land vehicles
Wheeled
Articulated vehicle
C280S249000
Reexamination Certificate
active
06726235
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the field of multi-purpose trailer accessories, and more particularly, to a device for moving and maneuvering multi-purpose trailers designed to be towed behind a passenger vehicle.
2. Description of Related Art
As can be seen by reference to the following U.S. Pat. Nos. 3,783,960; 4,266,796; 4,779,889 and 5,325,934, the prior art is replete with myriad and diverse trailer dollies and drivers.
While all of the aforementioned prior art constructions are more than adequate for the basic purpose and function for which they have been specifically designed, they are uniformly deficient with respect to their failure to provide a simple, efficient, and practical trailer mover.
As a consequence of the foregoing situation, there has existed a longstanding need for a new and improved trailer mover and the provision of such a construction is a stated objective of the present invention.
BRIEF SUMMARY OF THE INVENTION
Briefly stated, the present invention provides a trailer mover secured to the forwardly extending tongue of a recreational or multi-purpose trailer. The trailer mover includes a bracket pivotally attached to the trailer tongue and a gearbox rotatably attached to the bracket. The gearbox is pivotally movable between a lowered vertical working position and a raised horizontal storage position. Further, the gearbox is selectively rotatable with respect to the bracket to allow steering when in the working position. A rubber-tired groundwheel extends from the distal end of the gearbox and is powered by a hand crank, which drives a set of gears, which provide a mechanical advantage.
REFERENCES:
patent: 3356172 (1967-12-01), Peckham
patent: 3380546 (1968-04-01), Rabjohn
patent: 3705638 (1972-12-01), Shock
patent: 3783960 (1974-01-01), Feliz
patent: 3841663 (1974-10-01), Proffit
patent: 3861482 (1975-01-01), Stephens
patent: 3944259 (1976-03-01), Miller
patent: 4266796 (1981-05-01), Riggs et al.
patent: 4307894 (1981-12-01), Habeshian
patent: 4779889 (1988-10-01), Morrison
patent: 5016900 (1991-05-01), McCully
patent: 5325934 (1994-07-01), Larson
patent: 5338047 (1994-08-01), Knisley
patent: 5725233 (1998-03-01), Gee et al.
patent: 563650 (1958-09-01), None
patent: 896592 (1945-02-01), None
DePumpo Daniel G.
Sturm & Fix LLP
LandOfFree
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