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. 16, 1982
Filed:
Feb. 04, 1980
Applicant:
Inventor:
Harvey G Van Fossen, Mishawaka, IN (US);
Assignee:
Wheelabrator-Frye, Inc., Mishawaka, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24C / ; B24C / ;
U.S. Cl.
CPC ...
51424 ; 51429 ; 51430 ;
Abstract
A portable blasting device in which the space between the blast head and the surface being treated is provided with a magnetic seal formed of the particulate material with apparatus for maintaining the magnet supports for relative movement to maintain the sealed spaced relation notwithstanding unevenness of the surface.