Material moving blade

Details Material moving blade Material moving blade

2000-11-22

2001-11-13

Novosad, Christopher J. (Department: 3671)

Excavating

Snow or ice removing or grooming by portable device

Scraper blade

C172S815000, C037S195000

Reexamination Certificate

active

06314666

ABSTRACT:

BACKGROUND OF THE INVENTION
Blades are attached to machines to push various materials from one place to another. These machines can be tractors with tracks, wheeled tractors, skid steer loaders, trucks and other powered vehicles. Materials are generally moved relatively short distances by blades that push. If material is to be moved a substantial distance, it is normally loaded in a vehicle.
Materials that are pushed short distances are generally moved in one direction to a common area. To move material in one direction, the vehicle returns to a starting position with the blade raised. Occasionally material can be moved in two directions to two separate areas. When moving material to two separate areas, the vehicle can be turned around at each end of a pass. However, turning the vehicle around may take more time than returning with the blade raised.
A blade which can move material in two directions could, in some situations, come close to doubling the material moved per hour. Unfortunately the blades that are currently used to push material are not able to move material efficiently when moving backwards. Their blades generally tend to ride up over material when moving to the rear and move less material than they move when moving forward.
There are situations in which blades need to move material on their backsides because the vehicle cannot be turned around to push material. One example of such a need is moving soil from a building wall or foundation. Other examples include moving snow away from garage doors and entry doors.
SUMMARY OF THE INVENTION
The material moving blade includes a moldboard, a lower cutting edge or scraper blade and an upper cutting edge or scraper blade. The moldboard carries a support frame attachment structure for connecting the blade to the support frame mounted on a vehicle. The moldboard includes a lower moldboard section and an upper moldboard section. The lower moldboard section carries the support frame attachment structure. The upper moldboard section is pivotally attached to the lower moldboard section for pivotal movement about a generally horizontal axis. At least one actuator is carried by the moldboard for pivoting the upper moldboard section relative to the lower moldboard section between a forward material pushing position and a back dragging position.
The lower cutting edge tends to force the blade downward when pushing material forward relative to the tractor or other vehicle. The upper blade tends to force the blade downward when moving the vehicle backwards. This ability to move material in two directions can, in some situations, double the quantity of material moved during a fixed period of time. The ability to back drag material also eliminates the need to move some material manually away from buildings, doors, fences and other structures.


REFERENCES:
FFC Snow Push—2 pgs. from Brochure, Date Unknown.
The Snowman Snowplow Brochure, Date Unknown.

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