Resilient lock for a hand tool

Cutlery – Cutting tools – Plural cooperating blades

Patent

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Details

30268, B26B 1328, B26B 1300

Patent

active

053677749

ABSTRACT:
The present invention relates to tools such as scissors, shears, pruners, and the like, which are resiliently biased to an open position, and which have a locking mechanism to keep these tools in a closed configuration. More particularly, this invention is concerned with tools having a pair of cooperatively engaging members provided with a resilient lock slidable within slots formed in these members. The lock includes a button having a yieldable head merging into a shank extending through the slots, the shank being joined to a cap. The head and cap have concavely shaped faces so that they are effectively in contact with the tool in respective annular regions of the tool, the area of these regions being proportional to the degree of compressive force applied to the lock.

REFERENCES:
patent: 975515 (1910-11-01), Davies
patent: 1785141 (1930-04-01), Woythal
patent: 2041336 (1936-05-01), Hall
patent: 2504447 (1950-04-01), Polincovsky
patent: 2574354 (1951-11-01), Smith
patent: 2929141 (1960-03-01), Vosbikian et al.
patent: 3233502 (1966-02-01), Fernberg
patent: 3235297 (1966-02-01), Fernberg
patent: 3357287 (1967-12-01), Wertepny
patent: 3672053 (1972-06-01), Wiss
patent: 4156311 (1979-05-01), Wallace
patent: 4268963 (1981-05-01), Harrison
patent: 4341016 (1982-07-01), Harrison
patent: 4490083 (1984-12-01), Rebish
patent: 4761860 (1988-08-01), Krauss
patent: 4947553 (1990-08-01), Bendickson
patent: 5005450 (1991-04-01), Ford
patent: 5033338 (1991-07-01), Ford, Jr.
Drawings for Craftsman 71 86458 Land tool, said purchased by Examiner before Mar. 1993.

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