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. 04, 2025
Filed:
Feb. 09, 2021
Applicant:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Inventor:
Kosuke Kadokura, Hitachinaka, JP;
Assignee:
HITACHI ASTEMO, LTD., Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/46 (2006.01); F16F 9/348 (2006.01);
U.S. Cl.
CPC ...
F16F 9/465 (2013.01); F16F 9/348 (2013.01);
Abstract
A pin portion in which an introduction orifice leading to a back-pressure chamber is formed is disposed along inner peripheries of a main body, a main valve, and a pilot casing. A nut disposed on the pin portion is rotated relative to the pin portion to fasten the main body, the main valve, and the pilot casing together. This eliminates the necessity of machining a tool engagement portion in the pin portion and represses an increase in man-hours.