US2007227048A1PendingUtilityA1

Snow shovel

Individually held — no corporate assignee on recordPriority: Apr 3, 2006Filed: Apr 3, 2007Published: Oct 4, 2007
Est. expiryApr 3, 2026(expired)· nominal 20-yr term from priority
E01H 5/02
34
PatentIndex Score
0
Cited by
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References
0
Claims

Abstract

The manually powered wheeled-levered shovel/launcher device for the purpose of snow removal, which permits user to stand relatively upright; while, engaged in shoveling with minimal effort and limited bending posture resulting in safer operation. The shoveling device has a handle at one end to a tool head, such as a snow shovel head. A collapsibly foldable wheel assembly acts as a fulcrum is attached to the device for easy handling a snow load. Shovel head is able to tilt downward coupled with spring-loaded mechanism for the purpose of altering the launch direction from upward direction due to centrifugal force around the wheel resting on the ground to forward direction when a sudden force downward is applied on the handle.

Claims

exact text as granted — not AI-modified
1 . A device for removing and disposing of snow comprising:
 a handle having upper and lower ends;   a foldable wheel assembly connected adjacent to said lower end of said handle;   shovel head on said lower end of said handle that tilts to launch a snow load when a sudden force downward is applied on the handle; and,   spring means connected between said handle and said shovel operable to urge said shovel to bounce back to its original position when the snow load is launched off.   
   
   
       2 . The device of  claim 1 , wherein the handle is detachable quickly for compact space-saving storage. 
   
   
       3 . The device of  claim 1 , wherein the handle is adjustable quickly to suit different height operator by means of telescoping. 
   
   
       4 . The device of  claim 3 , wherein the height of handle is adjustable quickly between 36 to 48 inches. 
   
   
       5 . The device of  claim 1 , wherein the device uses one wheel for smaller/narrower shovel head. 
   
   
       6 . The device of  claim 5 , wherein the diameter of the wheel is between 2 to 12 inches. 
   
   
       7 . The device of  claim 1 , wherein the device uses two wheels for a larger/wider shovel head to provide additional stability, thus preventing the device from tipping side to side while launching. 
   
   
       8 . The device of  claim 7 , wherein the diameter of the wheels are between 2 to 12 inches. 
   
   
       9 . The device of  claim 1 , wherein the wheel assembly is collapsibly foldable quickly for compact space-saving storage. 
   
   
       10 . The device of  claim 1 , wherein the shovel head is pivotably mounted on said handle whereby to tilt downward due to a pivot proximate at the back of the shovel head to within 24 inch from the back of shovel head 
   
   
       11 . The device of  claim 10 , wherein the downward tilting of the shovel head is controlled by the weight in the shovel head against pre-design springs. 
   
   
       12 . The device of  claim 1 , wherein the shovel head is formed of bendable plastic/rubber like material which offer elasticity proximate at the back of the shovel head whereby to enable it to tilt downward due to an alternate to within 24 inch from the back of shovel head. 
   
   
       13 . The device of  claim 12 , wherein the downward tilting of the shovel head is controlled by the weight in the shovel head against said bendable plastic/rubber like material. 
   
   
       14 . The device of  claim 1 , wherein the launching of snow in the shovel head is possible by operator creating a sudden force downward movement on the handle by using both arms/upper body motion, which cause the entire device then to rotate toward the operator around the wheel resting on the ground. 
   
   
       15 . The device of  claim 14  wherein said sudden jerk movement will also simultaneously/automatically lift and induce an additional artificial weight to the shovel head on the other end of the device, to overcome the biassing of the springs, causing the springs to extend and the shovel head assembly then to tilt downward toward the opposite side of the operator in which the launch direction is diverted from the upward direction due to centrifugal force which pivotal around the wheel resting on the ground to a forward launching direction. 
   
   
       16 . The device of  claim 1 , wherein the launching of snow in the shovel head is possible by operator creating a sudden force downward movement on the handle by using both arms/upper body motion, which cause the entire device then to rotate toward the operator around the wheel resting on the ground. 
   
   
       17 . The device of  claim 16  and wherein said sudden movement will also simultaneously/automatically lift and induce an additional artificial weight to the shovel head on the other end of the device, to overcome the elasticity of the plastic/rubber like material, causing the elastic material to bend and the shovel head assembly then to tilt downward toward the opposite side of the operator in which the launch direction is diverted from the upward direction due to centrifugal force which pivotal around the wheel resting on the ground to a forward launching direction. 
   
   
       18 . The device of  claim 1 , wherein once the snow is launched-off the shovel head, the springs will retract to its original length in a sudden manner which soon bottom-out, hence create an abrupt stop, which prevent any snow to stick to the shovel head. 
   
   
       19 . The device of  claim 1 , wherein once the snow is launched-off the shovel head, the alternate elastic material bounces back to its original straight position in a sudden manner which soon bottom-out, hence create an abrupt stop, which prevent any snow to stick on the shovel head. 
   
   
       20 . The device of  claim 1 , wherein the tilting shovel head alone causes the operator not require to induce an additional forward force by means of running, hence prevent slipping on ice and injury minimized because of it, in order to counter the upward force due to centrifugal force pivotal around the wheel; Therefore, the launch is altered from upward direction to forward direction, which launch the snow to a substantial distance away from the device.

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