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:
Mar. 03, 1998
Filed:
Jun. 03, 1997
Erkki Heinonen, Helsinki, FI;
Markku Paloheimo, Helsinki, FI;
Instrumentarium Oy, Helsinki, FI;
Abstract
An arrangement in connection with a gas mixer, which is arranged to form a mixed gas of oxygen and another gas to be mixed with it. To provide a simple and reliable arrangement, before the mixed gas is formed the oxygen is arranged to be supplied through both a mechanical adjusting means, and a mechanical and electronic flow-measuring means. The other gas to be mixed with oxygen is arranged to flow through an electronic flow-measuring device. The flow of the other gas is arranged to be regulated by means of an electronically controlled regulating valve, whereupon the electronic flow-measuring means, the electronic flow-measuring device, and the electronically controlled regulating valve are arranged to be operated by means of a control unit.