Dentistry – Apparatus – Hand manipulatable implement
Reexamination Certificate
2005-07-26
2005-07-26
Lewis, Ralph A. (Department: 3732)
Dentistry
Apparatus
Hand manipulatable implement
C606S208000, C081S318000, C081S325000
Reexamination Certificate
active
06921263
ABSTRACT:
A dental instrument (10) having a tool (12) with a tip (56) capable of being rapidly adjusted and fixed in a variety of orientations relative to an instrument body (14). The instrument comprises opposing jaws (16, 22) having concave surfaces (18, 24). One jaw (16) is attached to one end of the instrument body, while the other jaw (22) is attached to the end of a lever arm (20). The lever arm is pivotally attached to the instrument body and is pivotal between a first (closed) position (P1), a second (intermediate) position (P2) and a third (open) position (P3). The lever arm includes a latch (26) having first and second catches (34, 36) that each releasably engage a rim (42) of an aperture (40) in the instrument body so as to retain the lever arm in the first (closed) position and the second (intermediate) position, respectively. The tool includes a spherical jaw-engaging end (54) sized to be tightly engaged by the concave surfaces of the jaws when the lever arm is in the first (closed) position, thereby preventing the tool from moving relative to the instrument body.
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Product Information Sheet entitled Detsch® Scalpel Handles-Blade Breaker-Scalpel Blades; G. Hartzell & Son, date: at least as early as Jan. 19, 1998.
Clinician's Choice Dental Products Inc. (p. 21 from catalog) (no date).
Downs Rachlin & Martin PLLC
Lewis Ralph A.
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