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:
Nov. 17, 1998
Filed:
Dec. 09, 1996
Fresenius Aktiengesellschaft, Bad Homburg, DE;
Abstract
A disposable balancing unit designed as a sheet bag includes two sheets (1, 2), which are heat-sealed together, forming a balancing chamber (4) that is divided by a flexible wall (8) into the two chamber halves (9, 10), and forming two equalization chambers (5, 6), as well as the channels (15 through 18) connecting the individual chambers. The flexible wall (8), which separates the first chamber half (9) of the balancing chamber (4) from the second chamber half (10), is formed by an intermediate sheet, which is inserted between the first and second sheet (1, 2) in the area of the balancing volume and is heat-sealed in a pressure-tight manner to the outer sheets, forming the first and second chamber half (9, 10). The fixed volume of the balancing chamber halves (9, 10) is specified by a corresponding system insert unit, into which the disposable unit is fittingly inserted. The system insert unit has two rigid receiving bodies (25, 26) with trough-shaped depressions (27) to grasp above or below the balancing chamber (4) of the disposable unit. The disposable balancing unit can be manufactured cost-effectively in a single heat-sealing operation and is easy to handle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile