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. 19, 1985
Filed:
Nov. 25, 1983
Applicant:
Inventor:
Jack C Cowan, Lafayette, LA (US);
Assignee:
Venture Chemicals, Inc., Lafayette, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
106 3835 ; 106 3851 ; 106 388 ; 106 389 ;
Abstract
The addition of a hydrophobic, organophilic, water-wettable fibrous material to foundry sands increases the flowability of the sand and enables the production of molds or cores from the foundry sand which retain the sharp edges of the mold, inhibits expansion defects, and provides a cleaner pattern conformity. The hydrophobic, organophilic, water-wettable fibrous material has negligible smoke and/or fumes and does not waterproof clay binders. The preferred hydrophobic, organophilic, water-wettable fibrous material is prepared from raw cotton from which the oils have not been removed.