Hole trimmer

Details Hole trimmer Hole trimmer

2007-05-01

2007-05-01

Batson, Victor (Department: 3671)

Earth working

Guided by walking attendant; supported, propelled, or held...

Hand tool

Reexamination Certificate

active

10486172

ABSTRACT:
A hole trimmer (10) for removing peripheral material projecting inside a hole (1), including a severing mechanism (11) with first (14) and second (15) opposing cutting surfaces, configured such that the first cutting surface (14) is incapable (whilst the second cutting surface (15) is capable) of passing through the hole (1). The hole trimmer also includes an actuation mechanism (12) for reversibly moving the first (14) and second cutting surfaces (15) towards and away from each other. The first cutting surface has a lower surface intersected by the actuation mechanism. In use, the second cutting surface (15) is inserted into the hole (1) the actuation mechanism (12) is then activated to move the second cutting surface (15) into abutting contact with the lower surface of the first cutting surface (14) severing any material interposed therebetween.

REFERENCES:
patent: 1340927 (1920-05-01), Whitman
patent: 3565179 (1971-02-01), Paliani
patent: 4846286 (1989-07-01), McNeely et al.
patent: 4884638 (1989-12-01), Hoffman
patent: 4947938 (1990-08-01), Fricke et al.
patent: 4958688 (1990-09-01), Marrow et al.
patent: 5337831 (1994-08-01), Chopp
patent: 5865258 (1999-02-01), McGrew, II
patent: 165547 (1921-07-01), None
patent: 2182532 (1987-05-01), None
patent: WO 94/27687 (1994-12-01), None
patent: WO 9427687 (1994-12-01), None

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