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:
Jun. 29, 2010
Filed:
Sep. 12, 2005
Applicant:
Slawomir Kielian, Des Plaines, IL (US);
Inventor:
Slawomir Kielian, Des Plaines, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phone line selector module used in telecommunications related equipment for automatically sensing and switching back and forth between first and second input ports. The selector module includes a two-piece inter-fitting housing which receives a miniature printed circuit board therein. The miniature printed circuit board is used to mount phone line selector circuitry thereon. The phone line selector circuitry includes a first ring sensing circuit, a second ring sensing circuit, and a latching relay.