B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/57
B29C 43/02 (2006.01) A61C 5/02 (2006.01) A61C 5/04 (2006.01) B29C 67/00 (2006.01) B30B 11/18 (2006.01)
Patent
CA 1318094
ABSTRACT OF THE DISCLOSURE A method for making a dental root canal filling point is provided, wherein provision is made of a rotary member having its outer processing surface in the form of a curved plane in parallel with its axial direction and adapted to be rotated at a predetermined speed and a moving member in which at least its processing surface is located in parallel with the processing surface of the rotary member and adapted to move at a speed substantially identical with a peripheral speed of the rotary member in the same direction as the rotational direction of the rotary member in a gap portion in which a minimum distance is defined between the processing surfaces of the rotary member and moving member . While at least the rotary member is rocked in its axial direction and the gap portion lies on a substantially identical plane, a rod-like material for the dental root canal filling point is fed in the gap portion between the processing surfaces of the rotary member and moving member to bring the leading end of the material in the gap portion in a direction normal to the axial direction of the rotary member , and a ratio of a moving speed of the leading end of the material brought in with respect to a moving speed at which the processing surfaces of the rotary member and moving member are spaced away from each other being continuously varied such that it conforms to a taper of the dental root canal filling point thereby making the dental root canal filling point , which has the desired taper
595634
Iizuka Hisao
Ubukata Noboru
G-C Dental Industrial Corp.
Marks & Clerk
Nimikagakukogyo Co. Ltd.
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