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:
Oct. 12, 1976
Filed:
May. 13, 1975
Yasumasa Kono, Fujisawa, JA;
Shuji Miyahara, Yokohama, JA;
Susumu Nomura, Yokohama, JA;
Hiroyuki Ohkubo, Yokohama, JA;
Yoshio Fujimori, Tokyo, JA;
Akira Iwawaki, Yokohama, JA;
Hiromasa Hirata, Yokohama, JA;
Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Tokyo, JA;
Abstract
A liquid containing abrasives is projected through nozzles under high pressure upon the surface of an object to be treated such as sheet steel to descale and clean the surface thereof, and the projected abrasive liquid is recovered so that abrasives of suitable particle sizes may be reused. The jet liquid is a mixture of high pressure liquid and slurry abrasives which are substantially uniform in density and granular size. The mixed slurry after projection against the sheet steel workpiece is returned to a vertical style classifier before it settles to the bottom of the collecting tank. The scales which are removed from the sheet steel workpiece are separated out in the classifier while at the same time the density and the granular sizes of the abrasives are made uniform. In addition, the minuscule abrasives are caused to overflow from the classifier while the liquid and the slurry abrasives made uniform in density and granular size are conveyed to the nozzles. The latter are capable of a variety of movements and the workpiece is capable of orientation with respect to the nozzles.