Michael P Griffin

US Patent:

20100307811, Dec 9, 2010

Filed:

Jun 9, 2009

Appl. No.:

12/480819

Inventors:

Michael D. Griffin - Rochester Hills MI, US

Assignee:

ESSENTIAL SOUND PRODUCTS, INC. - Rochester Hills MI

International Classification:

H05K 9/00
H01B 7/00

US Classification:

174350, 174113 R

Abstract:

An electrical power cable includes a central support or a ground conductor surrounded by an insulating material layer. An inner grounded shield is disposed on the support or on the ground conductor. A plurality of insulated line conductors and a plurality of insulated neutral conductors are circumferentially disposed in an annular arrangement about an insulation layer on the inner shield. The plurality of line and neutral conductors are disposed in various alternating single, double or triple conductor groups. The total cross-sectional area of all of the line conductors or all of the neutral conductors is substantially equal to the total cross-sectional area of a single large conductor of equivalent ampere rating. An outer shield is disposed about the line and neutral conductors and covered by an outer insulating layer.

US Patent:

58640940, Jan 26, 1999

Filed:

Dec 19, 1996

Appl. No.:

8/769816

Inventors:

Michael D. Griffin - Rochester Hills MI

International Classification:

H01B 718

US Classification:

174105R

Abstract:

An electrical power cable includes a central ground conductor surrounded by an insulating material layer. An inner grounded shield is formed on the surface of the ground conductor or between the ground conductor and line and neutral conductors. A plurality of insulated line conductors and a plurality of insulated neutral conductors are circumferentially disposed in an annular arrangement about an insulation layer on the inner shield. The plurality of line and neutral conductors are each disposed circumferentially side-by-side in separate groups of line and neutral conductors. The total cross-sectional area of each group of line conductors and neutral conductors is substantially equal to the total cross-sectional area of a single large conductor of equivalent ampere rating. An outer shield is disposed about the line and neutral conductors and covered by an outer insulating layer. PVC insulation surrounds all of the conductors and is used to form the shields and other insulating layers to minimize movement of the individual conductors within the cable.

US Patent:

59450665, Aug 31, 1999

Filed:

Dec 30, 1997

Appl. No.:

9/000753

Inventors:

James D. Griffin - Oakland MI
David A. Griffin - Sterling Heights MI
Michael H. Griffin - Dryden MI

International Classification:

C22C 1802

US Classification:

420516

Abstract:

A Zn--Cu based alloy is disclosed including from about 11 to about 50 wt. % of Cu, from about 0. 1 to about 10 wt. % of Al, from about 0. 01 to about 1. 0 wt. % of Mg, and from about 0. 001 to about 0. 1 wt. % of at least one member of the group consisting of Ti, Pb, Sn, Cd, Ni, Mn, Cr, Fe and mixtures thereof; and the balance being Zn. The Ti component may be added via an Al--Ti alloy. This alloy yields high-part-number castings especially useful in the automotive parts field.