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:
Jun. 29, 1982
Filed:
Apr. 25, 1980
Robert T Nelson, Oklahoma City, OK (US);
Other;
Abstract
A surface cleaning apparatus utilizing abrasive projected at high velocity against the surface being treated. The apparatus defines an opening in an enclosure through which abrasive is propelled in a high velocity stream or blast to impact against the surface. A pathway in communication with the opening receives and directs rebounded, spent abrasive to a collection bin. A rotating brush within the boundary of the opening of the enclosure and the kinetic energy of the abrasive are used to direct the spent abrasive in the pathway. A recycling apparatus is integrated within other elements in the enclosure to collect spent abrasive rebounded in pathway for return to the high velocity blast stream.