Retractable knife device

Details Retractable knife device Retractable knife device

1998-02-20

1999-07-20

Watts, Douglas D.

Cutlery

Combined cutlery or combined with ancillary feature

Cutlery

30123, 30162, 30299, B26B 108, B26B 500

Patent

active

059242035

ABSTRACT:
A retractable knife device includes a first and a second blade respectively and retractably received in two ends of a casing of the tool. A connecting device is connected between the two blades and has a knob slidably disposed to a side of the casing. The first blade is moved to extend from the casing by a trigger device and the second blade is moved to extending from the casing by moving a pin member connected thereto which slidably extends from the casing. A spring has one end thereof fixedly connected to the casing and the other end thereof connected to the first blade. The connecting device ensures that only one of the first blade and the second blade can be moved to extend from the casing when in use.

REFERENCES:
patent: 736741 (1903-08-01), Klemm
patent: 4570342 (1986-02-01), Baum
patent: 4713885 (1987-12-01), Keklan et al.
patent: 4955138 (1990-09-01), Henke et al.
patent: 5093994 (1992-03-01), Karas
patent: 5617635 (1997-04-01), Berns
patent: 5778536 (1998-07-01), West

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