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:
Mar. 09, 2010
Filed:
Mar. 14, 2005
Applicant:
Leo A. Eger, Murrysville, PA (US);
Inventor:
Leo A. Eger, Murrysville, PA (US);
Assignee:
Fulmer Company, LLC, Export, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Brush spring assemblies for heavy-duty use are addressed. Such assemblies may include constant-force springs used to bias carbon brushes into contact with commutator surfaces. They additionally may include temporary capture mechanisms for the springs, allowing the springs to be retracted—and retained in a retracted position—while brackets containing the springs are inserted into brush holders. Post insertion, the capture mechanisms may be manipulated so as to release the springs, permitting the springs thereafter to bias brushes toward the commutator surfaces.