Utility knife with opposing blades

Details Utility knife with opposing blades Utility knife with opposing blades

1989-07-05

1991-04-02

Phan, Hien H.

Cutlery

Cutting tools

Plural blade

30294, 30286, B26B 300

Patent

active

050036963

ABSTRACT:
A utility knife consisting of a flat blade holder is capable of being grasped from above. It contains opposing cutting blades mounted in slots in the holder such that each blade is clamped in place and may be laterally adjusted using a leverage system formed by several cuts in the holder itself. The holder has two guide surfaces joined at an obtuse angle so that when one is in contact with the material for cutting the other is elevated above it and vice versa. In use the first guide surface and blade is placed against the material for cutting and the holder is drawn in a first direction thereby cutting the material with the rearward facing blade until reaching a corner, whereby the forward raised blade abuts the corner. The forward guide edge and blade is lowered into contact with the material for cutting thereby raising the rearward blade and the holder is now drawn in the reverse direction thereby completing the cut without the need to turn the knife around or lift it from the cutting surface.

REFERENCES:
patent: 2681506 (1954-06-01), Tipple
patent: 4227306 (1980-10-01), Meshulam
patent: 4805304 (1989-02-01), Knoop

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