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:
Feb. 27, 2018
Filed:
Dec. 25, 2012
Sanwa Techno Co., Ltd., Kobe-shi, Hyogo, JP;
Susumu Shoji, Kobe-shi, Hyogo, JP;
Susumu Shoji, Kobe, JP;
Kazuro Fukui, Kobe, JP;
Other;
SANWA TECHNO CO., LTD., Kobe-shi, Hyogo, JP;
Abstract
A rotational shaft seal member which does not cause leakage of powder and which has a slit capable of being enlarged as a result of occurrence of springback. Cylindrical shaft seal memberat powder containerincludes pileincluding woven/knit pile fabrichaving cut pileat the inside of cylindrical shaft seal memberand pile cylindrical support member; the outside diameterbeing capable of shrinkage as a result of external pressure, and being capable of enlargement as a result of pressure on the inside diameter. When cylindrical shaft seal memberis inserted in attachment holeof support frameat the rotating body, attachment is achieved because slitcauses shrinkage of outside diameterof cylindrical shaft seal member, enlargement due to springback of slitcausing intimate contact with attachment hole