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. 31, 2006
Filed:
Mar. 26, 2004
Thomas A. Froeschle, Southborough, MA (US);
Roger Mark, Barrington, RI (US);
Thomas C. Schroeder, Southboro, MA (US);
Richard Tucker Carlmark, Cumberland, RI (US);
David E. Hanson, Upton, MA (US);
Jun MA, Auburn, MA (US);
Benjamin G. K. Peterson, West Boylston, MA (US);
Thomas A. Froeschle, Southborough, MA (US);
Roger Mark, Barrington, RI (US);
Thomas C. Schroeder, Southboro, MA (US);
Richard Tucker Carlmark, Cumberland, RI (US);
David E. Hanson, Upton, MA (US);
Jun Ma, Auburn, MA (US);
Benjamin G. K. Peterson, West Boylston, MA (US);
Bose Corporation, Framingham, MA (US);
Abstract
An electromagnetic actuator includes a stator assembly mounted to a center pole formed of material having high magnetic permeability and functions as a return path for the magnetic field generated when current is passed through coils in the stator assembly. When current is applied to one or more coils within the stator assembly, a magnetic field is generated that interacts with a magnetic field generated by one or more magnets disposed within the armature assembly and causes the armature to move relative to the center pole thus, for example, opening or closing a valve.