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. 21, 2002
Filed:
Aug. 14, 2000
Daniel M. Nosenchuck, Mercerville, NJ (US);
Other;
Abstract
A pump or compressor for transporting a fluid comprises an impeller includes a plurality of impeller elements disposed for rotation to impart kinetic energy to the fluid. The impeller, which in one embodiment is an axial flow compressor, has an electrically conductive ring or other conductive members disposed along a rotary path of the impeller. An impeller driver includes a ring of magnetically permeable material extending in an arc proximate to the rotary path of the conductive portion of the impeller. The impeller driver acts as a motor stator with two core portions wound with electrically conductive coils for inducing a magnetic field in the ring and two electrically conductive pole portions spaced from the core portions. Alternating electrical current introduced to the coils imparts a rotary force to the electrically conductive ring of the impeller, causing it to transport the compressor working fluid.