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US 5,768,785 AGranted
Versatile impact-type hand tool
AssigneeMarlin Products & Manufacturing, Inc.
InventorRay H. Pessin
Life of this patent
Estimating the term…
Abstract
An improved spade-type hand tool incorporates an easily operated impact member which is slidably received on the upper end of the tool handle for acceleration by gravity to generate an impactive force for increasing the efficiency of the tool for chopping ice, roots, hard soil, etc. Attached to the tool's spade-type blade is an inclined-ramp component that serves (a) to lift, separate, and break up material into which the blade is driven, and (b) to increase the effectiveness of the spade tool when it is used for prying or as a lifting wedge.
Claims9
An impact-operated hand tool comprising:
- an elongated handle having a length of a preselected first dimension and having a lower end and an upper end;
- an elongated impact member having a length of a preselected second dimension that is shorter than said preselected first dimension and having its own respective lower and upper ends, said upper end of said impact member being integrated with a mass component and said lower end of said impact member being formed to be slidably received in mating relationship over the upper end of said handle;
- said impact member, when received over said handle, being slidably movable between (a) a first location in which said mass component is in contact with said upper end of said handle and (b) a second location in which said mass component is not in contact with said upper end of said handle so that said impact member may be moved from said second location to said first location to cause said mass component to strike said upper end of said handle;
- and
- a spade-like blade fixed to the lower end of said handle, said spade-like blade having:
- respective front and rear faces with respective top and bottom edges, and
- an inclined-ramp component (a) having a low end and a high end and (b) being fixed relative to said front face of said spade-like blade so that said low end of said inclined-ramp component is in proximity to said bottom edge of said front face and said high end of said inclined-ramp component is in proximity to said top edge of said front face.
4 more elements
Dependencies are inferred from the claim text.