Hole punch for raceway

Details Hole punch for raceway Hole punch for raceway

1994-05-23

1996-10-01

Jones, Eugenia

Cutlery

Perforating or indenting implements

Pivoted handles

30358, B26F 102

Patent

active

055601103

ABSTRACT:
A punch for punching rectangular holes in clamshell-shaped raceways for the mounting of receptacles allowing connection to appropriate cables running through the raceway. The punch includes a reciprocable punch having four generally triangular-shaped teeth projecting toward a die mounted in a die block. Each tooth is located at a corner of a rectangular-shaped cutting punch. The open raceway slides into the punching apparatus between the punch and the die to a stop pre-adjusted for hole location and the four teeth penetrate the wall of the raceway and the sloping cutting edges of the teeth cut the rectangular shape of the desired size.

REFERENCES:
patent: 1418474 (1992-06-01), Rosenberg
patent: 1785215 (1930-12-01), Sponable
patent: 1890955 (1932-12-01), Spengler
patent: 3296905 (1967-01-01), Killaly
patent: 3350781 (1967-11-01), Bender
patent: 3381376 (1968-05-01), Ames
patent: 3721144 (1973-03-01), Yamamori
patent: 5377415 (1995-01-01), Gibson

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