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:
Nov. 05, 1985
Filed:
Dec. 22, 1983
Robert A Horton, Chesterland, OH (US);
Gowri S Jayaraman, Cleveland Heights, OH (US);
TRW Inc., Cleveland, OH (US);
Abstract
An apparatus for casting doubly-oriented single crystal airfoils and similar articles includes a mold having an orientation selector which selects crystals having desired vertical and horizontal orientations. The orientation selector includes an upright primary growth passage having a lower end exposed to the upper side surface of a chill plate. A horizontal secondary growth passage is connected with the upper end of the primary growth passage and with the mold cavity. A gradient inducing passage is connected with the upper end of the primary growth passage and has a lower end exposed to the chill plate to promote the transmission of heat from the upper end of the primary growth passage to the chill plate after metal crystals have solidified in the gradient inducing growth passage.