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:
Dec. 04, 1990
Filed:
Apr. 12, 1989
Toshimitsu Araki, Musashino, JP;
Fumihiko Kawamata, Chiba, JP;
Masayuki Ogino, Toyko, JP;
Hitoshi Miyagawa, Kanagawa, JP;
Toshio Kamata, Tokyo, JP;
Mitsuo Watanabe, Funabashi, JP;
Kunihiro Miyashita, Tokyo, JP;
Ishikzwajima-Harima Heavy Industries Co., Ltd., Tokyo, JP;
Abstract
A screen forming apparatus and method comprises a long pipe of predetermined length floatable in the water, a pump for conveying the water through the pipe, a pipe connecting the pipe with the pump, an air-water device provided with the pipe for mixing the water with air, a number of nozzles disposed along the longitudinal direction of the pipe at predetermined intervals for injecting the water in the form of screen, and a device for producing air curtains flowing along the front and the rear surfaces of the screen in order to maintain the screen substantially uniform in thickness.