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:
May. 28, 1996
Filed:
Sep. 09, 1994
Muh-Wang Laing, Miao-Li Hsien, TW;
Lang-Fu Tsay, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
An interchangeable injection screw for use in an injection molding machine is disclosed. It comprises: (a) an interchangeable feeding section, an interchangeable compression-and-melting section, an interchangeable metering-and-mixing section, and an interchangeable screw head, wherein the interchangeable feeding section, the interchangeable compression-and-melting section, the interchangeable metering-and-mixing section and the interchangeable screw head can severed from each other; (b) a splined shalt integrally formed with the interchangeable feeding section and extending in front thereof so as to sleevedly receive, in order from the feeding section, the compression-and-melting section and the interchangeable metering-and-mixing section; and (c) a screw means for affixing the interchangeable screw head to the splined shalt so as to form a complete injection screw. In a preferred embodiment, the splined shalt contains a female screw stub at its front to threadably receive a male screw bolt provided in middle of the internal portion of the interchangeable metering-and-mixing section, so as to provide adjustable length of the injection screw.