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:
Feb. 22, 1977
Filed:
Oct. 20, 1975
Applicant:
Inventor:
Marius Gunnergaard, Lyngby, DK;
Assignee:
Dansk Industri Syndikat A/S, Herley, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164 30 ; 164137 ; 164340 ;
Abstract
A method of inserting a core in a sand mold wherein the sand mold is provided with a cavity for receiving the core, and, during the insertion of the core in the cavity, the sand around the core is compressed by an element or, if the core print is provided with a retaining projection, a further projection on the core print is provided for compressing the sand around the cavity in the sand mold which receives the retaining projection.