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:
Dec. 07, 2010
Filed:
Jun. 29, 2004
Shinji Shimada, Tokyo, JP;
Atsushi Ota, Tokyo, JP;
Yasuyuki Imaizumi, Tokyo, JP;
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
Abstract
The technical problem of this invention is to establish a method of processing a synthetic resin tube, in which the shape of a part of the tube wall is changed to form easily an attractively hollowed and/or raised portion in a fairly wide area of the tube wall. The object of this invention is to provide a tubular container having excellent decorativeness, appearance, or functionality that has never been found before. A method of processing a synthetic resin tube comprises utilizing a mandrel having a mold portion, which has at least a shape selected from a hollowed shape, a raised shape, and a hollowed and raised shape formed in a part of outer surface of the mandrel, and which is also provided with small through-holes in this mold portion; inserting a bottomed cylindrical mandrel into a synthetic resin tube, while bringing the inner wall of the tube in contact with the mandrel; heating and softening the tube in the portion facing the mold portion; deaerating the tube via a central opening and the through-holes to mold the softened portion of the tube in a manner similar to vacuum molding; and forming in the tube wall at least one of the portions selected from a hollowed portion, a raised portion, and a hollowed and raised portion.