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:
Oct. 08, 2019
Filed:
May. 12, 2015
Fancom B.v., Panningen, NL;
Wouter Bernardus Lambertus Hoolboom, Panningen, NL;
Marcel Leonardus Hubertus Kurstjens, Panningen, NL;
FANCOM B.V., Panningen, NL;
Abstract
A ventilation valve () for ventilation of a space for keeping animals or plants includes an opening-defining circumferential framework () for mounting in a wall of that space, and a movable panel (). The panel () is movably attached to the framework () for relative movement between a fully closed position, in which substantially no air can pass between the framework and the panel, and a fully open position, in which substantially the complete opening is available for passage of air. A profiled edge on the framework provides a non-linear relation between a passage opening and an opening position of the panel (). Also provided is a system for ventilating the space, having at least a single ventilation valve, and for periodically determining parameters of inside air in the space, and adjusting the opening position of the valve based on the parameters.