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:
Aug. 10, 1976
Filed:
Apr. 28, 1975
Applicant:
Inventor:
Murray Berkowitz, Woodcliff Lake, NJ (US);
Assignee:
Curtiss-Wright Corporation, Wood-Ridge, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164113 ; 164 72 ; 164121 ; 164348 ; 165 80 ;
Abstract
Molding apparatus and method for producing die castings having high, closely spaced projections extending therefrom formed by mold portions which are re-entrant or interleaved between the projections of the casting. Such re-entrant mold portions do not cool rapidly between casting shots and their tips are liable to stick to the casting, making it difficult or impossible to release. The invention provides a die mold having such re-entrant portions and a method of rapidly cooling such portions between casting shots in order to provide acceptable production rates.