1
John McHardy, Carl W Townsend, Lin R Higley, Frank A Ludwig: Electrochemical synapses for artificial neural networks. Hughes Aircraft Company, M E Lachman, M W Sales, W K Denson Low, May 24, 1994: US05315162 (24 worldwide citation)

An electrochemical synapse adapted for use in a neural network which includes an input terminal and an output terminal located at a distance of less than 100 microns from the input terminal. A permanent interconnect having controllable conductivity is located between the two inputs. The conductivity ...


2
Frank A Ludwig, John McHardy: Non-destructive method for evaluation of printed wiring boards. Hughes Aircraft Company, M E Lachman, W K Denson Low, July 3, 1990: US04939469 (12 worldwide citation)

A method for evaluating characteristics of a printed wiring board by measuring the alternating current impedance spectra of the printed wiring board conductor pattern. The method is useful in evaluating a number of different characteristics, such as moisture content, delamination, interlayer thickne ...


3
John McHardy, Frank A Ludwig, Lin R Higley, Andrew Kindler, Carl W Townsend: Electrochemical capacitor. Hughes Aircraft Company, M E Lachman, A W Karambelas, August 23, 1988: US04766522 (12 worldwide citation)

An electrochemical capacitor (battery-capacitor) which provides high power density and rapid charging and discharging times ranging from a few milliseconds to a few seconds. The capacitor device includes at least one electrochemical cell having two electrodes and an electrolyte therebetween. The ele ...


4
J Brian Murphy, John M Brauninger, John McHardy, Clifford A Megerle, Carl W Townsend: Dielectric mixture composition linear sensor with compensation for mixture electrical conductivity. HE Holdings, Gordon R Lindeen III, Michael W Sales, Wanda K Denson Low, February 10, 1998: US05717339 (12 worldwide citation)

The composition of an electrically conductive mixture, preferably a mixture of gasoline and alcohol, is measured using a single measurement cell having a first electrode and a second electrode with a measurement space therebetween for receiving a specimen of the mixture. With a specimen of the mixtu ...


5
J Brian Murphy, John M Brauninger, John McHardy, Clifford A Megerle, Carl W Townsend: Dielectric mixture composition sensor with compensation for mixture electrical conductivity. Raytheon Company, Colin M Raufer, Leonard A Alkov, Glenn H Lenzen Jr, May 2, 2000: US06057693 (11 worldwide citation)

The composition of an electrically conductive mixture, such as a mixture of gasoline and alcohol, is measured using a single measurement cell having a first electrode and a second electrode with a measurement space therebetween for receiving a specimen of the mixture. With a specimen of the mixture ...


6
John McHardy, Thomas P Moser: Method and apparatus for detecting the position of liquid-liquid interfaces. Hughes Aircraft Company, M E Lachman, M W Sales, W K Denson Low, June 27, 1995: US05426976 (3 worldwide citation)

Precise information about the position of a liquid-liquid interface (28, 32) is often important for the control and automation of molten metal refining processes. For example, in an electrolytic process for removing magnesium from molten aluminum, knowledge of the vertical position of an interface ( ...


7
Carl W Townsend, John McHardy, Clifford A Megerle: Time averaged toxic metals monitoring method. Hughes Aircraft Company, M E Lachman, M W Sales, W K Denson Low, May 7, 1996: US05514593 (2 worldwide citation)

An improved device for monitoring the presence of toxic metals in workplace air comprises a base and a removable top assembly. The top assembly includes a test substrate, such as filter paper, having a first surface and a second surface. The first surface is supported by the top assembly and the sec ...


8
Stephen A Gabelich, John McHardy: Measuring magnesium concentrations in molten metal alloys. Hughes Aircraft Company, M E Lachman, M W Sales, W K Denson Low, May 27, 1997: US05632881 (2 worldwide citation)

A simple robust sensor probe for determining the magnesium concentration in molten metal alloys in real-time. The probe provides needed process control information in molten metal technologies and has particular application to processes for removing magnesium impurities from scrap aluminum. The prob ...


9
Mccracken Douglas William, Brand John Mchardy: Controlling access to a secure computer system. Desktop Guardian, November 17, 2004: GB2401745-A (2 worldwide citation)

An access device such as a personal computer (PC) or personal digital assistant (PDA) is used by a requester, for example a person, to access a computer system, typically via the World Wide Web (WWW). Upon requesting access, the access device provides an authentication service with a unique device i ...


10
John McHardy, Paul Nicholas Chait, Kurt Salloux, Stanley Chait: Identifying and amerliorating a deteriorating condition for battery networks in-situ. Global Energy Innovations, Peters Verny, May 12, 2015: US09030173 (1 worldwide citation)

A temperature is measured for each terminal of the battery unit. The magnitude and sign of a temperature differential is calculated from the temperatures. The temperature differential is then correlated to a deteriorating condition of the battery unit.