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. 19, 2004
Filed:
Jul. 26, 2002
Applicant:
Inventors:
Roger Scott Loving, Boulder, CO (US);
Anthony William Pankratz, Arvada, CO (US);
Assignee:
Micro Motion, Inc., Boulder, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/78 ;
U.S. Cl.
CPC ...
G01F 1/78 ;
Abstract
The present invention relates to a linear actuator that maximizes the flux density in the air gap where work is to be done by increasing the lines of flux that are captured while keeping the cost of production and mass relatively low. This is achieved by an improved linear actuator, which is characterized by a keeper comprised of a cross-shaped piece of ferromagnetic material bent such that the four ends of the cross are located perpendicular to the longitudinal axis of the magnet.