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:
Jul. 13, 2021
Filed:
Oct. 27, 2017
Fujitsu General Limited, Kanagawa, JP;
Naoya Morozumi, Kanagawa, JP;
FUJITSU GENERAL LIMITED, Kanagawa, JP;
Abstract
A suction passage includes: a first passage that is cylindrical and connected to a suction unit; and a second passage whose one end is connected to the first passage and other end has an opening on the inner circumference of a cylinder. The second passage is formed, from its one end to the other end, in a slit-like shape penetrating the upper side and the lower side of the cylinder, and satisfies L≥W, W≤D×0.7, W≤Dwhere the width of the second passage at the other end in a circumferential direction of the cylinder is W, the width of the second passage at the one end is W, the length of the second passage from the one end to the other end is L, and the inner diameter of the first passage at an area connected to the second passage is D