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. 16, 1978
Filed:
Mar. 07, 1977
Applicant:
Inventors:
Manfred Luttinger, Columbus, OH (US);
George E Cremeans, Grove Port, OH (US);
Louis J Nowacki, Columbus, OH (US);
Assignees:
Manley Bros. of Indiana, Inc., Chesterton, IN (US);
Borden, Inc., Columbus, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
260 38 ; 260 / ;
Abstract
Shell cores and molds are prepared more rapidly by the shell process using resin coated sands wherein the resin is a phenol-formaldehyde novalak resin but having a small amount, e.g. about 1 to about 10 percent by weight, of resorcinol incorporated therein whereby a significant reduction in the cycle time required to produce the cores or molds is achieved.