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:
Nov. 11, 2014
Filed:
Jun. 01, 2010
Félix Querejeta Andueza, Vitoria-Gasteiz, ES;
Gonzalo José Fernández Llona, Elorrio, ES;
José Ignacio Múgica Odriozola, Bergara, ES;
Francisco Javier Echenausia Saez DE Zaitegui, Aretxabaleta, ES;
Félix Querejeta Andueza, Vitoria-Gasteiz, ES;
Gonzalo José Fernández Llona, Elorrio, ES;
José Ignacio Múgica Odriozola, Bergara, ES;
Francisco Javier Echenausia Saez de Zaitegui, Aretxabaleta, ES;
Coprecitec, S.L., Aretxabaleta (Gipuzkoa), ES;
Abstract
A system or apparatus that in one implementation includes an electromagnetic valve having an actuator rod with a first coil and a second coil positioned at different longitudinal locations on the actuator rod and being situated electrically parallel to one another in an electrical circuit. The electromagnetic valve is constructed to induce a first voltage in the second coil when the electromagnetic valve is in the open position and to induce in the second coil a second voltage lower than the first voltage when the electromagnetic valve is in the closed position. A switch changeable between a first position and a second position is located in the electrical circuit. When the switch is in the first position the electrical circuit is configured to allow current from a power source to be delivered to the second coil. When the switch is in the second position the electrical circuit is configured to not allow current from a power source to be delivered to the second coil. A control device situated in series with the second coil in the electrical circuit is adapted to detect the open or closed position of the first electromagnetic valve based on the induced voltage of the second coil. The control device is adapted to act upon the switch to change it between the first and second positions. In one implementation, upon detecting that the electromagnetic valve is in the closed position, the control device is configured to act upon the switch to cause it to assume the first position.