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:
Jul. 10, 2001
Filed:
Jun. 15, 1999
Kazuo Nakayama, Osaka, JP;
Ichiro Maruyama, Osaka, JP;
Hideki Kitada, Osaka, JP;
Takehiro Nishimura, Hyogo, JP;
Other;
Abstract
If the height of a train car is reduced by the regrinding of the tread of each wheel and then reincreased to the original level by simply increasing the height of air springs, the compression stroke of the air springs changes. An arrangement is proposed to maintain a constant compression stroke after height adjustment. A stopper has movement restricting portions arranged circumferentially at predetermined intervals for restricting the downward movement of the outer cylinder. The stopper is rotatably mounted on the inner member. The outer cylinder has surfaces to be supported, and second surfaces to be supported provided circumferentially alternating with the first surfaces at a level lower than the first surfaces such that when the stopper is turned, the restricting protrusions move from the position where they support the first surfaces to the position where they support the second surfaces. The stopper has a lever so that it can be turned by operating the lever from outside.