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:
Oct. 23, 1979
Filed:
Jul. 25, 1977
Hitoshi Okayasu, Gyoda, JP;
Sachio Nyui, Konosu, JP;
Showa Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A buffer for a bumper comprising an outer cylinder having its bottom closed and an inner cylinder fitted slidably into the outer cylinder and defined to be attached to the bumper at the tip thereof, a stopper being provided on the inner surface of the outer cylinder at the tip thereof for preventing the inner cylinder from being disconnected therefrom, an orifice and a check valve being provided at the heel of the inner cylinder for permitting exclusively to flow a fluid sealed in the outer cylinder to the inner cylinder therefrom, a free piston being provided in the inner cylinder for partitioning a gas sealed in the inner cylinder from the fluid sealed in the outer cylinder, and the fluid in the outer cylinder maintaining the gas under a compressed condition through the free piston at the heel of the inner cylinder, thereby allowing the free piston to displace in a damped speed to absorb the vibrations of an automobile attached with the bumper and to improve the stability of the automobile.