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. 09, 2001
Filed:
Mar. 07, 1996
Noribumi Koitabashi, Yokohama, JP;
Masami Ikeda, Yokohama, JP;
Sadayuki Sugama, Tsukuba, JP;
Naohito Asai, Yokohama, JP;
Hiromitsu Hirabayashi, Yokohama, JP;
Tsutomu Abe, Isehara, JP;
Hiroshi Sato, Yokohama, JP;
Shigeyasu Nagoshi, Kawasaki, JP;
Eiichiro Shimizu, Urawa, JP;
Masahiko Higuma, Tohgane, JP;
Yuji Akiyama, Yokohama, JP;
Hitoshi Sugimoto, Kawasaki, JP;
Miyuki Matsubara, Tokyo, JP;
Shinichi Sato, Kawasaki, JP;
Fumihiro Gotoh, Yokohama, JP;
Masaya Uetsuki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid container including a first chamber for containing a reservoir of liquid, a second chamber containing a negative pressure producing material, an air vent for fluid communication with ambient air, a liquid supply port for supplying liquid out of the second chamber, a communication path for fluid communication between the first and second chambers where the first chamber is generally sealed by the ambient air except through the communication path, and a wall extending from the communication port. The communication path has a first region for permitting movement of air from the second chamber to the first chamber and a second region for permitting movement of the liquid from the first chamber to the second chamber.