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. 19, 1992
Filed:
Jun. 06, 1989
Sumio Okuno, Kudamatsu, JP;
Michifumi Takeichi, Kudamatsu, JP;
Keiji Ohmura, Kudamatsu, JP;
Msato Okazaki, Kudamatsu, JP;
Hitoshi Tsuruda, Kudamatsu, JP;
Hiroyuki Yamada, Kudamatsu, JP;
Morishige Hattori, Kudamatsu, JP;
Kenji Kimura, Kudamatsu, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A car body for high speed railway rolling stock and a method of fabricating the same wherein, in order to prevent a variation of external pressures produced when the rolling stock travels at high speeds from being propagated into the interior of the car body, the car body is of an air-type construction. The car body has a reduced weight and is capable of withstanding a variation of the external pressures by the provision of a construction in which the underframe of the car body includes a curved surface having at least one radius of curvature extending across a width of the car body.