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:
Jun. 28, 2005
Filed:
Oct. 09, 2002
Tapani Niemelä, Mariefred, SE;
Bruno Slettenmark, Järfälla, SE;
Thomas Valeij, Huddinge, SE;
Maquet Critical Care AB, Solna, SE;
Abstract
A valve in a breathing device has a housing with an inlet and an outlet, a valve housing having an inlet and an outlet, a valve seat arranged in the housing, a valve body arranged in the housing to be freely moveable with respect to the valve seat between a closed position where the valve body completely covers the valve seat and an open position where the valve body is distanced from the valve seat. The valve body comprising a rigid central portion and a circumferential wrinkled and flexible portion devised for friction-free movement of the rigid central portion, and an actuator for controlling a force applied on the valve body in response to a control signal. The actuator includes an actuator body, a shaft having an end contactable with the valve body, and an electromagnetic displacement coil.