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:
Mar. 29, 1983
Filed:
Feb. 06, 1976
Applicant:
Inventor:
John C Bergh, Elkhart, IN (US);
Assignee:
Wheelabrator-Frye Inc., Hampton, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24C / ;
U.S. Cl.
CPC ...
51424 ;
Abstract
A portable apparatus for treatment of surfaces, preferably horizontal, comprising a centrifugal wheel for projecting abrasive particles onto the surface of an angle within the range of 30.degree. to 80.degree. with the surface, a feed hopper for supplying abrasive particles to the wheel, a rebound corridor extending angularly upwardly through an angle of at least 180.degree. with the surface and through which the abrasive particles rebound upon striking the surface whereby gravity means take over for returning the rebounding abrasive particles to the hopper.