Dental instrument

Details Dental instrument Dental instrument

2007-01-23

2007-01-23

O'Connor, Cary E. (Department: 3732)

Dentistry

Apparatus

Hand manipulatable implement

C433S138000, C433S155000

Reexamination Certificate

active

11068367

ABSTRACT:
A dental instrument includes a first arm, a second arm, which is pivotally coupled to the first arm about a pivot axis, and a spring. The first and second arms are pivotal with respect to each other in a plane generally orthogonal to the pivot axis. Each of the arms has a proximal portion, a medial portion, and a distal portion, with the proximal portions defining hand grip portions, and with the arms being pivotally connected at their medial portions. The spring biases the distal portions of the arms toward each other. Each of the distal portions comprises a first portion and a prong portion depending from the first portion. The prong portions comprise back-to-back generally C-shaped portions and spaced apart tines. The C-shaped portions define a pair of seats, with the tines depending from the seats and having spaced apart distal ends adapted for engaging a rubber-dam clamp, and the seats providing contacts for a dental retaining ring.

REFERENCES:
patent: 315706 (1885-04-01), Brewer et al.
patent: 1336746 (1920-04-01), Ivory
patent: 1349767 (1920-08-01), Ivory
patent: 1438975 (1922-12-01), Wiggins
patent: 6345983 (2002-02-01), Godfrey

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