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:
Oct. 22, 2024
Filed:
Jan. 26, 2024
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A plasticizing device includes: a flat screw having a groove formation surface in which a spiral groove is formed and configured to rotate about a rotation axis by a motor; a barrel having a facing surface facing the groove formation surface in a direction of the rotation axis; a heater configured to heat the material supplied between the groove formation surface and the facing surface; and a screw case accommodating the flat screw and having a supply port through which the material is supplied to the groove. The flat screw includes a first side surface in which an introduction port for introducing the material from the supply port into the groove is partially formed, and a second side surface provided on a side farther away from the barrel than the first side surface. A first distance which is a shortest distance between the first side surface and the screw case is larger than a second distance which is a shortest distance between the second side surface and the screw case, and a recessed portion is formed in the second side surface.