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:
Feb. 11, 1986
Filed:
Nov. 22, 1983
Nobuyoshi Sasaki, Yokohama, JP;
M.C.L. Co., Ltd., Kanagawa, JP;
Abstract
An improved system for the preparation of ceramic shell molds comprises a rotary disk which is mounted for rotating in a substantially horizontal plane. A plurality of wax master mounting bars are pivotally carried by the rotary disk to move around the periphery of the rotary disk. The mounting bars have free ends loaded with the wax masters. The rotary disk is operatively associated with the wax master mounting bars for swinging and rotating the bars on their own axes as the rotary disk rotates continuously. The preferred embodiment comprises a cam of generally twisted undulating cam strips and a roller attached to the base ends of the bars for frictionally engaging the cam face of the cam strip to swing the bars and to rotate them on their own axes. A slurry bath, a drain bath, and a stucco bath are arranged around the exerior side of the periphery of the rotary disk.