Implements or apparatus for applying pushing or pulling force – Single throw lever – Special engaging feature
Reexamination Certificate
2003-01-23
2004-07-06
Watson, Robert C. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Single throw lever
Special engaging feature
Reexamination Certificate
active
06758459
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a simple and inexpensive Weed Puller that requires no moving parts.
2. Description of the Prior Art
U.S. Pat. Nos. 3,976,282; 4,135,700; 4,243,206; 5,383,523; and 5,477,667 disclose weed pullers that are difficult or expensive to produce or require moving parts.
SUMMARY OF THE INVENTION
It is an object of the invention to provide a simple and inexpensive weed puller that requires no moving parts.
The weed puller comprises foot block molded out of plastic material with tines molded into a forward end and with an aperture formed in its upper surface for receiving a handle.
In the embodiment disclosed, the foot block comprises two opposite facing sides and six edge surfaces which comprises a front surface, an upper surface, a fulcrum transverse to the upper surface and which comprises a rear surface, a bottom surface, and a forward fulcrum surface. A surface also extends from the forward fulcrum surface to the first end. The tines are molded into the block and extend out of the front surface.
REFERENCES:
patent: 1494557 (1924-05-01), Lumry et al.
patent: 3976282 (1976-08-01), Baker
patent: 4135700 (1979-01-01), Arzoian
patent: 4243206 (1981-01-01), Heikkinen et al.
patent: 4815778 (1989-03-01), Hoch
patent: 4901801 (1990-02-01), Popivalo
patent: 5383523 (1995-01-01), Stamp
patent: 5477667 (1995-12-01), Bryant
patent: 5868447 (1999-02-01), Clark et al.
Heikkinen Doris A.
Heikkinen Edward A.
Mantooth Geoffrey A.
Watson Robert C.
Zobal Arthur F.
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