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:
Nov. 05, 1991
Filed:
Jan. 10, 1990
Ming-Tang Chen, Dali, Taichung, TW;
Other;
Abstract
A jig-boring device, comprising an axle barrel which connects with bottom plate and is sheathed with lower gear, fixed support, upper gear and cover plate; a circular bottom plate connected to the bottom of the axle barrel; a lower gear placed on bottom plate sheathing the axle barrel; a fixed mount placed on lower gear sheathing the axle barrel; an upper gear placed on fixed support sheathing the axle barrel; a cover plate placed on upper gear sheathing the axle barrel; a lock nut which screws to the top outer periphery of the axle barrel; two pairs of measuring staffs which connect to two pairs of measuring staff brackets respectively; and two pairs of measuring staff brackets, placed symmetrizing each other on the bottom plate and fixed support respectively, which can measure out the abscissa and vertical coordinate of a desired bore center position about a work object.