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:
Feb. 03, 1976
Filed:
May. 14, 1974
Hisamine Kobayashi, Nagoya, JA;
Shikishima Tipton Mfg. Co., Ltd., Nagaoya, JA;
Abstract
A method for finishing workpieces which are caused to flow in a helical motion together with abrasive media within a circular vibratory finishing tub in the form of a hollow annulus closed at both ends, and more particularly for vibratory finishing of workpieces together with abrasive media in a heavily compressed condition and for separating the mass (a mixture of workpieces and abrasive media) into workpieces and abrasive media. The apparatus for carrying out the method has a downwardly inclined or horizontal circular vibratory finishing tub having an opening at the top which is closed in operation, in the form of a hollow annulus, having the radially greatest sectional area at the central portion thereof and the sectional area being gradually smaller toward both ends thereof, so that the mass is caused to flow during vibration with an increased density resulting in a substantially compressed condition of the mass so that workpieces and abrasive media are caused to move in a closely spaced relation which would otherwise be eliminated at every vibration. By this arrangement the vibrating pressure and action between workpieces and abrasive media are improved and the mass separating efficiency as well as the smoothness of the finished surfaces are also improved considerably.