William R Louise

US Patent:

20080303610, Dec 11, 2008

Filed:

Jun 7, 2007

Appl. No.:

11/759423

Inventors:

Bradford R. Spoor - Weedsport NY, US
William Louise - North Syracuse NY, US
Gary J. Clark - Constantia NY, US

Assignee:

Eagle Comtronics, Inc. - Liverpool NY

International Classification:

H03H 7/01

US Classification:

333175, 333185

Abstract:

A tuned filter having enhanced high frequency response includes a circuit board having first and second opposed major surfaces and first and second opposing sides. The opposed major surfaces are substantially parallel to a single plane and are bisected by a longitudinal axis. The first and second opposing sides are substantially parallel to the longitudinal axis. An input terminal and an output terminal are connected to the single circuit board. A filter section is associated with the first major surface. At least two ground paths are associated with the second major surface. One of the ground paths extends along a portion of the first side, and another one of the ground paths extends along a portion of the second opposing side. An isolation region separates the at least two ground paths, and extends along the longitudinal axis.

US Patent:

6560087, May 6, 2003

Filed:

Sep 1, 2000

Appl. No.:

09/654593

Inventors:

Joseph N. Maguire - Syracuse NY
William Louise - North Syracuse NY
Dale W. Marland - Erieville NY

Assignee:

Eagle Comtronics, Inc. - Clay NY

International Classification:

H01C 712

US Classification:

361118, 361119, 361117, 361 911, 361 88, 333185, 174 2

Abstract:

An electronic signal filter is provided that includes a metal housing which has been adapted to be electrically grounded, and a circuit board positioned within the housing. The circuit board includes a first area and a second area, and has an electrically conductive trace formed on a portion of a top surface of the circuit board that provides electrical communication between the first and second areas of the circuit board. The filter further includes a metal shield connected to the housing, located between the first and second areas of the circuit board. The metal shield extends in a direction substantially perpendicular to the plane of the circuit board and has a slot formed therein for receiving the portion of the circuit board on which the electrically conductive trace is formed. The slot is dimensioned to provide a space between the metal shield and the conductive trace. The dimension of the space is selected to shunt current passing through the conductive trace to ground in the event of a voltage surge passing through the filter.