Hand tool having a variable torque-limiting in-line drive

Details Hand tool having a variable torque-limiting in-line drive Hand tool having a variable torque-limiting in-line drive

1999-01-11

2000-08-01

Meislin, D. S.

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

81DIG5, B25B 23157

Patent

active

06095020&

ABSTRACT:
A hand tool of the type having a variable torque-limiting in-line drive with a handle having a cavity and a drive bit disposed in the cavity. Over-ride drive members are disposed in the cavity and a spring exerts a force on the drive members for transmitting only a maximum force to a bit in the tool. A variable control adjustment is on the tool and is used to apply a varying force to the spring and thus control the amount of maximum torque to be transmitted.

REFERENCES:
patent: 2733622 (1956-02-01), Evans
patent: 3292678 (1966-12-01), Noga
patent: 4063474 (1977-12-01), Klopping
patent: 4272973 (1981-06-01), Fu-Tsai
patent: 4517865 (1985-05-01), Huang
patent: 4653359 (1987-03-01), Liao
patent: 4901610 (1990-02-01), Larson et al.

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