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:
May. 11, 1982
Filed:
Jun. 20, 1980
Applicant:
Inventor:
David W Hanson, Minneapolis, MN (US);
Assignee:
Fabcon, Inc., Savage, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134 18 ; 134 251 ; 134 68 ; 1341 / ; 134131 ; 264 37 ; 264228 ; 425215 ;
Abstract
A process and system for recovery and recycling of hard rock core forming aggregate used in the slip forming of elongated hollow-cored concrete planks using wash water to remove slurry and a rotating screen to remove the water from the aggregate with collection and conveying means for the aggregate.