Boris Davidovich Deceased4336 Robinson St, Flushing, NY 11355
Boris Davidovich Phones & Addresses
4336 Robinson St, Flushing, NY 11355 (718) 539-0342
4628 Burling St, Flushing, NY 11355 (718) 886-0317
2662 2Nd St, Brooklyn, NY 11223
Astoria, NY
Mentions for Boris Davidovich
Publications & IP owners
Us Patents
Model Die Ejector
US Patent:
6050817, Apr 18, 2000
Filed:
Jul 26, 1999
Appl. No.:
9/360986
Inventors:
Boris Davidovich - Flushing NY
Assignee:
S. Lekhovitser - Flushing NY
International Classification:
A61C 1900
US Classification:
433 74
Abstract:
A dental model die ejector tool is designed to loosen the individual model dies mounted on a model base with a tapered dowel pin extending through the base, but at the same time not to lift them for any substantial distance. In turn, that loosening step allows for further easy separation of all the model dies with a wax cast as a single unit from the model base for further individual removal of the model dies. At one end, the model die ejector contains a pushing rod equipped with an ejector shank having a length of less than 1 mm and preferably about 0. 1 mm for pushing the dowel pin upwardly in the corresponding sleeve for a short distance equal to the length of the shank so that the wax cast is not disturbed but the dowel pin is loosened. On the other end, the die ejector contains another pushing rod with an ejector cavity for loosening another commonly used type of a dowel pin extending from its sleeve after the removal of a protective cap. The depth of the cavity is sufficient to loosen the dowel pin while using the die ejector but not to lift it thus preventing any potential distortion of the wax cast.
Isbn (Books And Publications)
Serbian Diaries
Author:
Boris L. Davidovich
ISBN #:
0854492224
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