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:
Apr. 28, 1998
Filed:
Mar. 27, 1996
Applicant:
Inventors:
Assignee:
Bitzer Kuehlmaschinenbau GmbH & Co. KG, Sindelfingen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22D / ;
U.S. Cl.
CPC ...
164 44 ; 164 47 ; 164137 ;
Abstract
A casting mold member is produced from a master which has a section with a spirally symmetrical outer contour such that the casting mold member surrounds the section in an azimuthally closed manner with respect to the axis of symmetry. The casting mold member is used to provide a casting mold. The casting mold member is filled by feeding a cast iron melt, and solidifying the melt by using a graphitization pressure to prevent cavities and pores in the casting and by chilling the melt to obtain shell hardening.
Quick Actions:
Joern, Friedrich-W. (1998). Process for the production of parts with a spirally symmetrical outer (U.S. Patent No. 5743321). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5743321
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile