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. 23, 1976
Filed:
Nov. 03, 1975
Thurman S Jess, Mundelein, IL (US);
Baxter Laboratories, Inc., Deerfield, IL (US);
Abstract
A hydrophobic valve for use with liquids, such as liquids for intravenous administration comprising a housing provided with inlet and outlet means, both of which communicate with the housing, a resilient, inflatable boot mounted in the housing and positioned to block the flow of liquid through the outlet means when inflated and to permit the flow of liquid through the outlet means when in a deflated position, with the boot including an open portion adjacent to the inlet means which is covered by a hydrophobic filter element capable of repelling liquid but permitting the passage of gases, such as air, therethrough whereby liquid introduced to the housing through the inlet means is passed through the housing for discharge from the outlet means and any air introduced with the liquid is passed through the hydrophobic filter into the boot to stop the flow of liquid from the outlet means when the boot is inflated with the gas.