The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 1989
Filed:
Aug. 28, 1987
Applicant:
Inventor:
Hiroaki Okinaga, Tokyo, JP;
Assignees:
Nikken Tool Co., Ltd., both of, JP;
Yoshino Seiki Inc., both of, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ;
U.S. Cl.
CPC ...
408 59 ; 175329 ; 175404 ; 279 99 ; 408 57 ; 408144 ; 408145 ; 408204 ; 408226 ;
Abstract
A drill comprising a drill shank having a taper portion adjacent to a threaded portion provided on the rear or basal portion of the shank. When the drill is screwed into an axial hole in a drill holder of a drilling machine, the opening edge or inner tapered wall of the axial hole of the drill holder bites into the taper portion of the drill shank, consequently to bring the drill into firm connection with the drill holder of the drilling machine.
Quick Actions:
Okinaga, Hiroaki. (1989). Drill (U.S. Patent No. 4854788). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4854788
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile