1
Brad E Clements, Kristina L Mann, Andrew M Cherniski: EMI-attenuating air ventilation panel. Hewlett Packard Company, July 27, 1999: US05928076 (77 worldwide citation)

EMI-attenuating air ventilation panel for electrical and electronic systems. An opening through a metallic panel is realized using an extrusion method in order to obtain a tube leaving the opening at one end. The periphery of the opening at the other side of the extruded tube has a smooth edge in or ...


2
Andrew M Cherniski, Alisa C Sandoval: Suppressing EMI with PCB mounted ferrite attenuator. Hewlett Packard Company, September 26, 2000: US06125044 (66 worldwide citation)

A printed circuit board (PCB) assembly includes a PCB having and a ferrite attenuator. The PCB includes input/output signal paths for carrying signals to and from the PCB, power paths for conducting power to the PCB, and ground paths for connecting the PCB to a ground level. The ferrite attenuator s ...


3
William P Armes, Andrew M Cherniski, Richard W Hanaway, James C Hathaway: Automatic specimen analyzing system. American Hospital Supply, Perman & Green, June 30, 1987: US04676951 (62 worldwide citation)

An automatic system for analyzing specimens which have been selectively treated. The specimens are arranged in a plurality of specimen trays with each tray containing a plurality of specimens. Tray towers support a plurality of specimen trays. A work station selectively moves the trays one at a time ...


4
Andrew M Cherniski, Michael Wortman: High performance EMC vent panel. Hewlett Packard Company, October 2, 2001: US06297446 (24 worldwide citation)

The inventive EM panel comprises multiple layers of perforated metal sheets that are electrically connected with each other. Since multiple sheets are used, the holes can be larger than in a single sheet shield, as attenuation improvements from increased panel thickness can be traded for attenuation ...


5
Andrew M Cherniski, Kevin Smith: Cable extension for reducing EMI emissions. Hewlett Packard Development Company, March 15, 2005: US06867362 (16 worldwide citation)

A cable emission reduction apparatus includes a conductive cable core, a filter, and a cable shield. The conductive cable core extends longitudinally from a first end to a second end. The filter is coupled to and encases the conductive cable core, and extends longitudinally only a portion of the con ...


6
David Dickey, James J DeBlanc, Andrew M Cherniski: Electromagnetic interference gasket. Hewlett Packard Company, November 20, 2001: US06320122 (11 worldwide citation)

An EMI device that provides a low impedance mechanism for conducting noise currents in all orientations back to the source of the noise currents in order to more effectively reduce EMI emissions is herein described. The EMI device is constructed from an elastomer core that is wrapped with a metalliz ...


7
Kirk Yates, Andrew M Cherniski, Rodrigo Bainotti: Electrical circuit for selecting a desired power source. Hewlett Packard Development Company, Tuan V Ngo, May 30, 2006: US07053691 (4 worldwide citation)

A circuit that allows selection of a power source among a plurality of power sources is disclosed. In an embodiment, either one or both voltage sources Vaux and Vapp may be available in a system. If both sources are available, then the circuit enables the system to use source Vaux. However, if only ...


8
James Hensley, Andrew H Dickson, Andrew M Cherniski: Expandable electromagnetic interference (EMI) gasket mechanism. Hewlett Packard Development Company, July 3, 2007: US07238893 (2 worldwide citation)

A resilient, electrically conductive EMI gasket is disposed between two jaws. A cam-lever or other actuator is operably linked to the jaws. The cam-lever can be used to drive the jaws closer together, thereby squeezing the gasket and causing a portion of the gasket to protrude, preferably beyond an ...


9
Andrew M Cherniski: Line filter assembly for minimizing unwanted emissions. Hewlett Packard Company, August 13, 2002: US06433984 (1 worldwide citation)

A line filter assembly for diverting unwanted emissions generated on a power cord between a power sub-system source and a power grid to ground is disclosed. The line filter assembly includes a PC board having first and second sides. A first pad covered with an electrically conducting material is pos ...


10
Andrew M Cherniski, Kevin Smith: Cable extension for reducing EMI emissions. Hewlett Packard Development Company, Hewlett Packard Company, September 9, 2004: US20040173369-A1

A cable emission reduction apparatus comprises a conductive cable core, a filter, and a cable shield. The conductive cable core extends longitudinally from a first end to a second end. The filter is coupled to and encases the conductive cable core, and extends longitudinally only a portion of the co ...