Earth working – Lawn aerator or perforator – or plug remover – Earth removing
Reexamination Certificate
2000-10-24
2001-12-18
Will, Thomas B. (Department: 3671)
Earth working
Lawn aerator or perforator, or plug remover
Earth removing
C172S371000
Reexamination Certificate
active
06330921
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to lawn aerating and weeding tools and, more particularly, to tools of the type intended to be used for forming downwardly extending holes in lawns.
2. Description of the Related Art
As is well known to gardeners and others concerned with lawn care, the appearance and health of lawns can be maintained and, in some cases, substantially improved by forming a plurality of downwardly extending holes in the lawn for the purpose of draining and aerating the lawn.
It is also well known that lawns are often invaded by obnoxious weeds, which need to be removed. The removal of these weeds usually involves digging sufficiently deeply into the lawn to enable the roots of the weeds to be removed. If this digging is not effected very carefully, then the lawn may become unduly damaged.
BRIEF SUMMARY OF THE INVENTION
It is accordingly an object of the present invention to provide a novel and improved lawn aerating and weeding tool which facilitates the carefully controlled provision of holes in lawns and, if required, the removal of weeds from lawns.
According to the present invention, there is provided a lawn aerating and weeding tool which comprises an elongate handle and an elongate metal attachment secured to one end of the handle. The metal attachment comprises an annular cutting blade at one end of the metal attachment, a retainer at an opposite end of the metal attachment and a connection between the annular cutting blade and the retainer. The retainer is secured to the one end of the handle and the connection provides a gap between the annular cutting blade and the retainer, in axial alignment with the annular cutting blade and the handle. This gap is open towards opposite sides of the metal attachment to facilitate removal of plugs cut by the annular cutting blade.
In use of this tool, the handle is moved downwardly so as to drive the annular cutting blade downwardly into a lawn. This causes the annular blade to cut a plug of sod or grass and earth, which passes upwardly through the annular blade into the gap. The handle is then drawn upwardly to remove the annular blade and, therewith, the thus-cut plug from the lawn. The plug can then readily be removed through one or the other of the open sides of the metal attachment.
Preferably, the retainer is provided with a footrest, for example in the form of a laterally projecting metal rod, to facilitate driving of the annular cutting blade into the ground.
REFERENCES:
patent: D. 235504 (1975-06-01), Kramer
patent: D. 251698 (1979-05-01), Bartholomew, Jr.
patent: D. 253390 (1979-11-01), Bartholomew
patent: D. 342651 (1993-12-01), Manos
patent: D. 371493 (1996-07-01), Beaulieu
patent: D. 411944 (1999-07-01), Lanz
patent: 826452 (1906-08-01), Barry
patent: 1939897 (1933-12-01), Hill
patent: 2210440 (1940-08-01), Avary
patent: 2439524 (1948-04-01), Moore
patent: 3011563 (1961-12-01), Ceretti et al.
patent: 3865055 (1975-02-01), Gilbaugh
patent: 4556114 (1985-12-01), Ryan
patent: 4848484 (1989-07-01), Clements
patent: 4932339 (1990-06-01), List
patent: 4966238 (1990-10-01), Shields
patent: 5709273 (1998-01-01), Roth
Markovich Kristine
Will Thomas B.
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