Cable driven ring blade knife

Details Cable driven ring blade knife Cable driven ring blade knife

1987-02-11

1990-01-23

Yost, Frank T.

Cutlery

Cutting tools

With blade moving means

17 1G, B26B 2500

Patent

active

048949159

ABSTRACT:
A rotary hand knife that includes a handpiece 12, 12', 220 a ring-like housing 14 on the handpiece, and a rotary ring blade 16 supported and guided by the housing. The blade is driven by a pinion 18, 18', 18" rotated by a motor-driven flexible cable assembly 24, 24', 24". A removable body 58, 58', 128, 258 in the handpiece is movable manually within the handpiece to control whether or not the cable drive rotates the pinion. A spring 94, 94', 94" within the handpiece yieldably biases the body to a position where the pinion is not driven and a hand-engageable member 120, 120', 120" retains the body in a position where the pinion is driven against the force of the spring when the handpiece and hand-engageable member are gripped.

REFERENCES:
patent: Re25947 (1965-12-01), Bettcher
patent: 2139272 (1988-12-01), Jaworski
patent: 2827657 (1958-03-01), Bettcher
patent: 3269010 (1966-08-01), Bettcher
patent: 3688403 (1972-09-01), Bettcher
patent: 3852882 (1974-12-01), Bettcher
patent: 4142291 (1979-03-01), Bettcher
patent: 4166317 (1979-09-01), Bettcher
patent: 4170063 (1979-10-01), Bettcher
patent: 4175321 (1979-11-01), Bettcher
patent: 4178683 (1979-12-01), Bettcher
patent: 4198750 (1980-04-01), Bettcher
patent: 4236531 (1980-12-01), McCullough
patent: 4324043 (1982-04-01), McCullough
patent: 4363170 (1982-12-01), McCullough
patent: 4494311 (1985-01-01), McCullough
patent: 4516323 (1985-05-01), Bettcher et al.
patent: 4575937 (1986-03-01), McCullough
patent: 4575938 (1986-03-01), McCullough

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