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. 23, 2012
Filed:
Mar. 17, 2008
Ichiro Sakai, Ishioka, JP;
Sachio Satoh, Hitachinaka, JP;
Hiroaki Sakai, Kasama, JP;
Junichi Oizumi, Kasumigaura, JP;
Nobuo Suzuki, Hitachinaka, JP;
Ichiro Sakai, Ishioka, JP;
Sachio Satoh, Hitachinaka, JP;
Hiroaki Sakai, Kasama, JP;
Junichi Oizumi, Kasumigaura, JP;
Nobuo Suzuki, Hitachinaka, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
An upper endof a nozzle tipis adapted to have an inside diameter dimension smaller than an outside diameter of a lower portion of a barrel, so that nozzle tipsare not piled up. An upper curved surface, which is curved in an outer direction of the nozzle tipstarting with a boundary portion between the barreland a leading end openingof the nozzle tipand the leading end opening, is formed. A lower curved surfaceis formed continuously from the upper curved surfaceto be curved in an inner direction. An angle formed between a line tangent to a boundary portionbetween the upper curved surfaceand the lower curved surfaceand a center axis of the nozzle tipis adapted to fall within a range between 45° and 20°.