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:
May. 05, 1987
Filed:
Jul. 19, 1985
Yoshio Okabe, Chiryu, JP;
Eiji Shirai, Okazaki, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A self-container hydraulic valve lifter includes a lifter body slidably mounted in a lifter case, a free piston slidably mounted between the lifter body and the lifter case, a plunger slidably mounted in the lifter body and dividing an interior portion of the lifter body into a reservoir chamber and a pressure chamber, a check valve for allowing fluid flow from the reservoir chamber to the pressure chamber, and an operating chamber formed between the free piston and the lifter case and communicated with the reservoir chamber in order to decrease the diameter of the pressure chamber in comparison with that of the free piston.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile