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:
Mar. 24, 1988
Hiroshi Ishizuka, Tokyo, JP;
Toshio Togano, Hiratsuka, JP;
The Ishizuka Research Institute, Kanagawa, JP;
Abstract
A polishing machine comprising: a rotary abrasive tool having a circular working face which comprises a mass of super abrasive grains, the face driveable by a motor to rotate about an axis, several arbors which, each, have an inversed cup-shaped work holder, detachably mounted at a lower end thereof and a minor gear in an upper portion and which are supported by a stage in a position perpendicular to said working face, the work holders being arranged in such relation that the open end of each of the work holders is opposite, at least partly, to the working face, the minor gears being engaged slidably along- and with a major gear which in turn is driven by a second motor, each arbor being engaged with a pressing device capable of pressing the work to keep in good contact with the tool working face, and a framework on which the abrasive tool and motor, as well as the stage are mounted.