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. 26, 1994
Filed:
Oct. 13, 1992
Yoshiyuki Hidawa, Tokorozawa, JP;
Toshiya Fujishima, Zushi, JP;
Satoru Takeda, Akashi, JP;
Toshihiro Hayashi, Kobe, JP;
Hiroshige Kohno, Kawasaki, JP;
Asahi Denka Kogyo K.K., Tokyo, JP;
Abstract
A method of providing hollow cast products using a filling unit wherein a non-solid material is filled into elastic molds having open bag shaped interior filling sections by a filling nozzle insertable internally of the filling sections of the elastic molds and a blowing nozzle for blowing air into the filling section, which includes: partly filling the filling sections of the elastic molds with the non-solid material, and blowing air into the partly filled filling sections before the material solidifies to blow the material upward and solidify the material on the inner peripheral surface of the filling sections.