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. 05, 2013
Filed:
May. 20, 2008
Akihiro Munakata, Hitachinaka, JP;
Hideki Machimura, Tokai, JP;
Hideaki Yamauchi, Hitachinaka, JP;
Daisuke Kitajima, Hitachinaka, JP;
Masashi Nemoto, Hitachinaka, JP;
Akihiro Munakata, Hitachinaka, JP;
Hideki Machimura, Tokai, JP;
Hideaki Yamauchi, Hitachinaka, JP;
Daisuke Kitajima, Hitachinaka, JP;
Masashi Nemoto, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A fluid pressure pulsation damper mechanism includes: a metal damper having two metal diaphragms joined together with a hermetic seal for forming a sealed spacing filled with a gas between the two metal diaphragms, an edge part overlapping along outer peripheries thereof, a main body having a damper housing in which the metal damper is accommodated, and a cover attached to the main body to cover the damper housing and isolate the damper housing from outside air.