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.:

US 7014586 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 21, 2006

Filed:

Oct. 23, 2003
Applicant:

Steven Paul Randall, Leeds, GB;

Inventor:

Steven Paul Randall, Leeds, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/72 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electro-mechanical transmission system, driven by a prime mover, includes two epicyclic gearsets connected between input and output shafts, and two electrical machines having their rotors connected to respective elements of the two gearsets. The torque on the output shaft is boosted by a controller, which dumps energy from the system when one of the machines is acting as a generator and the other as a motor.


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