Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1992-01-21
1992-10-20
Rachuba, M.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51326, 51328, 51227H, 51 62, 51 63, 163 5, B24B 100
Patent
active
051559439
ABSTRACT:
There are disclosed a method of and apparatus for grinding an elongated material for a suture needle. An elongated grinding tape is reciprocally moved in its longitudinal direction, and simultaneously the material is pressed against the grinding tape in such a manner that the material is disposed substantially perpendicular to the longitudinal direction of the grinding tape and is inclined relative to one face of the grinding tape, thereby grinding the material to form a cutting edge on at least one side edge of a grounded surface of the material. The grinding apparatus includes a mechanism for reciprocally moving the grinding tape in opposite directions along the longitudinal direction of the grinding tape, a mechanism for transferring the grinding tape in a predetermined one of the opposite directions along the longitudinal direction of the grinding tape, a tape support member, and a mechanism for supporting the material and for pressing the material against that portion of the grinding tape positioned at a support surface of the tape support member. A suture needle includes at least one ground surface, and a pair of cutting edges formed respectively on opposite side edges of the ground surface. The ground surface has grinding traces which extend perpendicular to an axis of the suture needle, and the pair of cutting edges are in generally the same condition from a microscopic point of view.
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Matsutani Kanji
Otsuka Tadashi
Tochimura Yoshimasa
Matsutani Seisakusho Co., Ltd.
Rachuba M.
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