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:
Jul. 05, 1994
Filed:
Aug. 16, 1993
Metal Industries Research & Development Centre, Kaohsiung, TW;
Abstract
The device includes a clamping assembly which has a stationary upright post with upper and lower casings coaxially mounted to the upright post, a threaded shaft to adjust a vertical height of the upper and lower casings, a drilling assembly which is adjacent to the clamping assembly and which has first and second drilling bits that respectively extends toward an axis of the upright post in a parallel manner and a worm mechanism for adjusting a vertical height between the two drilling bits and an index apparatus which can rotate the clamping assembly to a predetermined angle relative to the drilling assembly. The upper and lower casings have radially movable pieces with clamping members thereon. A synchronous moving unit moves the movable pieces relative to the upright post to define a distance which is equal to a radius of curvature of a curved plate that is to be clamped and drilled by the device.