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:
Feb. 11, 1992
Filed:
Sep. 26, 1990
Jules O Legal, Manitoba, CA;
Abstract
A ventilator for providing low pressure air for assisting the breathing of an imfirm patient includes a pump with a cylindrical chamber having a vane mounted within the chamber for sweeping the inside surface of the chamber in a pumping action. The pump is double-acting. Ports to the pump are located in a wedge-shaped divider member permanently mounted within the chamber and extending from the chamber to a shaft driving the vane. Valves for the ducts extending from the ports to respective inlets and outlets are mounted exteriorly of the wedge-shaped dividing member. The pump can therefore have lower volume and the shaft is directly driven providing high efficiency and simple adjustment of the volume supplied to the patient.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile