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. 24, 2005
Filed:
Nov. 06, 2003
Applicant:
Matthew David Fletcher, Royston Herts, GB;
Inventor:
Matthew David Fletcher, Royston Herts, GB;
Assignee:
Ling Dynamic Systems, Ltd., Royston Herts, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K001/00 ;
U.S. Cl.
CPC ...
Abstract
An armature for an actuator for applying vibration to a body along an axis, the armature having at least two parallel wound helical windings on the axis, and a terminal arrangement connected to the ends of the windings for selective connection of the windings to two external A.C. drivelines, the terminal arrangement being switchable between a relatively low impedance mode, with at least two of the windings connected electrically in parallel, and a relatively high impedance mode, with two of the windings or two groups of parallel-connected windings connected in series.