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:
May. 18, 2010
Filed:
Feb. 28, 2008
Applicant:
André Graffin, Winfield, IL (US);
Inventor:
André Graffin, Winfield, IL (US);
Assignee:
Serac Group, La Ferte Bernard, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The magnetic actuator device of the invention comprises a magnetic field generator external to the duct and a permanent magnetic field generator internal to the duct, separated from the magnetic field generator external to the duct by a non-magnetic separator wall, and connected to a moving member, the permanent magnetic field generator internal to the duct being dimensioned to have a face spaced apart from the separator wall so as to define a space that can receive particles of metal without the actuator device jamming.