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. 13, 2007
Filed:
Mar. 01, 2004
Philip Corbin, Iii, Tacoma, WA (US);
Robert L. Dahlin, Sumner, WA (US);
John A. Molnar, Bellevue, WA (US);
John B. Rusconi, Dublin, CA (US);
Walter F. Strong, Sudbury, MA (US);
Philip Corbin, III, Tacoma, WA (US);
Robert L. Dahlin, Sumner, WA (US);
John A. Molnar, Bellevue, WA (US);
John B. Rusconi, Dublin, CA (US);
Walter F. Strong, Sudbury, MA (US);
Flux Drive, Inc., Sumner, WA (US);
Abstract
An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member. The primary rotary member has permanent magnets, the secondary rotary member with electro-conductive materials. The secondary rotary member also having magnetically permeable material. The secondary rotary member is placed partially or totally inside the primary rotating member. This causes the two rotary members to axially overlap one another more or less as desired. Rotation of the primary rotary member causes rotation of the secondary rotary member, since magnetic flux lines emanating from the permanent magnets mounted on the primary rotating member, cut through all, or part of, the electro-conductive material placed on the secondary rotary member. This can vary the torque transmitted between the two rotary members, thereby enabling the varying of the rotational speed of the secondary rotary member relative to the primary rotary member.