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. 12, 2013
Filed:
Feb. 06, 2009
Hiroki Fujii, Aichi, JP;
Kimihiko Todo, Aichi, JP;
Hiroki Fujii, Aichi, JP;
Kimihiko Todo, Aichi, JP;
OTICS Corporation, Aichi, JP;
Abstract
A lash adjuster includes a cylindrical body, a cylindrical plunger, a low pressure chamber defined in the plunger, a high pressure chamber defined in a hollow lower interior of the body and filled with an operating fluid, a check valve allowing the operating fluid to flow into the high pressure chamber when in a valve-opened state and cutting off flow of the operating fluid from the high pressure chamber into the low pressure chamber when in a valve-closed state. A retainer of the check valve includes a base plate and a cylindrical portion extending upward from an outer circumferential edge of the base plate so as to surround the valve element. The base plate includes a central portion on which the valve element is placed and which has an upper surface formed with a swollen portion. The cylindrical portion has a plurality of openings formed through it circumferentially equiangularly.