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:
Aug. 23, 1988
Filed:
Dec. 19, 1986
Norman Shim, Glenview, IL (US);
Respiratory Care, Inc., Arlington Heights, IL (US);
Abstract
The present invention comprises a cartridge humidifier assembly having a heating means for humidifying a gas supplied from a source and delivered to a patient. The cartridge humidifier has a cap which defines a chamber with a column. The cap includes a port which receives the gas from a ventilator and a port which permits the discharge of heated humidified gas to the patient. The cap also has a single air-vent port for the venting of air with the water supply from the chamber of cartridge assembly. Water is supplied to the bottom of the cartridge assembly from a one-way conduit in communication with the bottom of the water supply container. A float rises to close off the air-vent when the cartridge assembly is full. The float lowers itself, unblocking the vent to the water bottle supply from the cartridge assembly, as the water level in the cartridge is used up in the humidification process. The float air-vent control is thus automatic, preventing possible overflow or lack of flow of water in the system.