Excavating – Snow or ice removing or grooming by portable device – Scoop
Reexamination Certificate
1999-03-26
2001-04-24
Lillis, Eileen D. (Department: 3673)
Excavating
Snow or ice removing or grooming by portable device
Scoop
C037S285000, C037S304000, C037S411000
Reexamination Certificate
active
06219944
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a manual dozer for lifting and moving materials such as snow, debris, sand, dirt, mulch and the like.
BACKGROUND OF THE INVENTION
Shoveling materials such as snow can be tiresome as well as dangerous work because the snow must be scooped as well as lifted and frequently thrown. Typically, the load of snow is at the end of a shovel which is unsupported, one hand serving as a fulcrum and the other applying force to lift the load. Since it is also necessary to bend over when shoveling, back injuries are not infrequent and since the snow is frequently thrown by the shoveller, exertion occasionally results in heart attacks.
There are, of course, snow blowers powered by engines which facilitate snow removal; but snow blowers are heavy, expensive devices which require maintenance. In addition, snow blowers cannot be used for other purposes.
In view of these considerations, there is a need for inexpensive devices which help with tasks such as removing snow but can also serve other purposes such as moving dirt and debris.
SUMMARY OF THE INVENTION
A manual dozer is configured to lift heavy objects, shovel dirt piles and the like and to remove snow from sidewalks and side streets. The dozer may have other uses in addition to these initially set forth uses.
The present invention relates to a manual dozer comprising a frame having a front and a rear and wheels for supporting the frame and allowing the frame to roll. The frame includes a handle extending upwardly from the frame for pushing, pulling and steering the frame. A container is mounted on the frame, the container having a closed rear end and an open front end. A scoop is pivoted on the frame adjacent the front end thereof and extends in front of the open front end of the container, the scoop normally assuming a down position wherein a front edge of the scoop is proximate the surface over which the manual dozer rollers. An arrangement is provided for pivoting the scoop from the down position to a raised position in which the front edge of the scoop tilts back toward the opening in the container to move the scooped material into the container.
In a more specific aspect, the arrangement for pivoting the scoop is located at the rear of the frame and is operated by foot.
REFERENCES:
patent: 40850 (1863-12-01), McNabb
patent: 45715 (1865-01-01), Holt
patent: 326016 (1885-09-01), Burt
patent: 631096 (1899-08-01), Smith
patent: 652399 (1900-06-01), Miller
patent: 1079785 (1913-11-01), Mason
patent: 1307568 (1919-06-01), Wenndorf
patent: 5031277 (1991-07-01), Coker
patent: 5048206 (1991-09-01), Jones
patent: 5123187 (1992-06-01), Zamaria
Hartmann Gary S.
Lillis Eileen D.
Millen White Zelano & Branigan P.C.
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