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. 30, 2003
Filed:
Dec. 21, 2001
Toshikazu Hirayama, Osaka, JP;
Daisuke Ueno, Osaka, JP;
Nipro Corporation, Osaka-fu, JP;
Abstract
An air trap comprises an air reservoir to be arranged in a liquid circulation line, and a hydrophilic filter which permits a liquid to permeate but does not permit gas bubbles to permeate, and which is arranged in the air reservoir to separate an upstream side of the liquid circulation line from the downstream side of the liquid circulation line. The filter has pores which meet conditions defined by equation: P<4h/d, where P represents a gas pressure, d is a diameter of the pores of the filter, and h is a surface tension of the liquid.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile