William J Hooper

US Patent:

48041475, Feb 14, 1989

Filed:

Dec 28, 1987

Appl. No.:

7/138304

Inventors:

William F. Hooper - Brandon FL

Assignee:

Waste Management Energy Systems, Inc. - Tampa FL

International Classification:

B02C 1912

US Classification:

241 24

Abstract:

A process for manufacturing aggregate from the ash residues resulting from incineration of municipal solid waste. Fly ash residue is added to bottom ash residue and oversized material is removed. The combined ash residue is mixed and ferrous metal is magnetically removed. The combined ash residue is comminuted and heavy metal immobilizing and volumetric stabilizing agents are added. Water is added to and mixed with the combined ash residue and stabilizing agents. The resulting mixture is retained for sufficient time to allow the immobilizing and stabilizing reactions to occur and weak agglomerations to form. The agglomerations are broken into individual particles before a solid mass is formed.

US Patent:

46850228, Aug 4, 1987

Filed:

May 10, 1985

Appl. No.:

6/733008

Inventors:

E. Lane Nichols - Clearwater FL
William P. Hooper - Largo FL
Kenneth J. Leynse - St. Pete FL

Assignee:

Square D Company - St. Petersburg IL

International Classification:

H02H 316

US Classification:

361 44

Abstract:

A ground-fault circuit interrupter is provided with an additional current-sensing element that responds to a net value of current through the power wires in an ac circuit. The winding may be wound on a ferromagnetic core of its own or it may be placed as a separate winding on a core that is used to sense imbalance in a GFCI. In the latter case the extra winding must be insulated electrically from the main sense winding. The additional coil is connected to a rectifying diode and a capacitor, so that an imbalance of current in the power wires charges the capacitor. The voltage thus developed across the capacitor is used to operate the tripping mechanism of the ground-fault circuit interrupter. The fault-powered signal thus attained in the added winding will enable the GFCI to operate despite the existence of heavy fault currents that reduce the operating voltage to the rest of the GFCI to a level that would otherwise prevent its operation.

US Patent:

47556650, Jul 5, 1988

Filed:

Jul 22, 1987

Appl. No.:

7/076524

Inventors:

Edward A. Ulmer - Clearwater FL
William P. Hooper - Largo FL

Assignee:

Square D Company - Palatine IL

International Classification:

G01R 3100
G01J 400

US Classification:

250214R

Abstract:

A light detector measures the intensity of two different light beams, computes a ratio of an AC to a DC component for each light beam, and computes a quotient by dividing a first of the above ratios by a second of the above ratios. A light detector has a first photodetector, means, responsive to the first photodetector, for computing a first ratio of an AC component to a DC component of the intensity of a first light detected by the first photodetector, means for producing a first average value of the first ratio, a second photodetector, means, responsive to the second photodetector, for computing a second ratio of an AC component to a DC component of the intensity of the second light detected by the second photodetector, means for producing a second average value of the second ratio, and means for computing a quotient by dividing the first average value of the first ratio by the second average value of the second ratio.