Parallel fences

Details Parallel fences Parallel fences

2005-10-03

2008-11-04

Ashley, Boyer D. (Department: 3724)

Cutting

With means to guide moving work

With movable or yieldable guide element

C083S438000, C083S441000, C083S477200, C083S581000, C144S253100, C144S287000

Reexamination Certificate

active

07444913

ABSTRACT:
A parallel fence includes a fence body, a front guide, a rear guide, and a positioning device. The fence body is adapted to be placed on a worktable. The front guide and the rear guide are disposed on the front end and the rear ends of the fence body. In a first operational position, the front and rear guides are fixed in position relative to the front and rear guides. In a second operational position, the front and rear guides are prevented from being removed from the front and rear rails in a first direction upwardly away from a surface of the worktable, but the front and rear guides are permitted to move in a second direction along the length of the front and rear rails. In a third operational position, the front and rear guides are permitted to be removed from the front and rear rails in the first direction.

REFERENCES:
patent: 2630845 (1953-03-01), Eschennburg
patent: 2806493 (1957-09-01), Gaskell
patent: 3011531 (1961-12-01), Gaskell
patent: 4658687 (1987-04-01), Haas et al.
patent: 4846036 (1989-07-01), Metzger et al.
patent: 6360641 (2002-03-01), Talesky et al.
patent: Y2 07-30324 (1995-07-01), None

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