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:
Jan. 31, 1995
Filed:
Oct. 07, 1993
Takashi Hanano, Kobe, JP;
Hanano Corporation, Hyogo, JP;
Abstract
In a spray method for spraying and applying a powdery mold coating agent onto both inside surfaces of a movable metal mold and a stationary metal mold for a permanent mold casting device, a spray method of permanent mold casting powdery mold coating agent in which a spray head provided with an electrostatic spray gun is fit to a feeding port so as to shut it tightly and a suction head connected to a suction pump is fit to a riser port so as to shut it tightly under a state where the movable metal mold and the stationary metal mold are closed. An inside of cavity is sucked by the suction pump through the riser port so as to produce a pressure difference between inside and outside of the cavity, and a powdery mold coating agent supplied from a powdery mold coating agent feeding device to the electrostatic spray gun is discharged from the electrostatic spray gun by means of the above pressure difference so as to be electrostatically adsorbed onto the inside surfaces of the foregoing both metal molds.