Analog dental wrench

Details Analog dental wrench Analog dental wrench

1999-11-01

2000-12-19

Lewis, Ralph A.

Dentistry

Apparatus

Hand manipulatable implement

81481, 81483, A61C 300

Patent

active

06162053&

ABSTRACT:
There is provided an analog dental torque wrench in which, at a given level of torque imparted to a dental work object, force communicated by a compression spring through an interface impart against a ball bearing will cause rotation of a handle and medial hollow cylindrical segment of the wrench off of the bearing to an off-axis position relative to a longitudinal work axis, disabling a wrench head, precluding further application of a torque to the work object, and causing shear of the wrench to occur either to the left or right of the longitudinal axis, and external to the mouth of the patient.

REFERENCES:
patent: 2512032 (1950-06-01), Mellert
patent: 2972271 (1961-02-01), Gill
patent: 3018677 (1962-01-01), Mutolo et al.
patent: 3633445 (1972-01-01), Aijala
patent: 5129823 (1992-07-01), Hughes
patent: 5152200 (1992-10-01), Kaplan
patent: 5337638 (1994-08-01), Coss et al.
patent: 5366412 (1994-11-01), Beaty et al.
patent: 5503042 (1996-04-01), Larson et al.
patent: 6007336 (1999-12-01), Sapkos
patent: 6021694 (2000-02-01), Beger

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