Spring-biased nipper

Details Spring-biased nipper Spring-biased nipper

1992-03-30

1993-06-01

Watts, Douglas D.

Cutlery

Cutting tools

Plural cooperating blades

30261, B26B 1700, B26B 1300

Patent

active

052148548

ABSTRACT:
A spring-biased nipper has a pair of handles connected for pivoting movement toward and away from each other. A helical spring has first and second cylindrical ends and a relatively wide central portion which tapers toward each end. One end of the spring is threadably received in a bore formed on an inner side of one of the handles. An unthreaded bore on the opposite handle receives the other end of the spring. The spring biases the nipper handles away from one another when a user's grasp on the handles relaxes. In a second embodiment, one end of the spring is glued into an unthreaded bore formed in one of the handles.

REFERENCES:
patent: 1056084 (1913-03-01), Bates
patent: 1681746 (1928-08-01), Rauh
patent: 1840358 (1932-01-01), Harvey
patent: 2028558 (1936-01-01), Nietzel et al.
patent: 2046642 (1936-07-01), Lynch
patent: 3680212 (1972-08-01), Rozmus
patent: 4779342 (1988-10-01), Kobayashi
patent: 5007313 (1991-04-01), Jeromson, Jr. et al.

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