David P Gross

US Patent:

7134441, Nov 14, 2006

Filed:

Jul 29, 2003

Appl. No.:

10/628559

Inventors:

David Gross - Bethesda MD, US
David Arguelles - Washington DC, US
Brian Lipford - Bel Air MD, US

Assignee:

Dominion Engineering, Inc. - Reston VA

International Classification:

B08B 3/00
B08B 3/12

US Classification:

134169R, 134110, 134111

Abstract:

A passive assembly for operating two cleaning chambers using a single filtration system having a flow diverter assembly is disclosed. The flow diverter assembly is actuated by a fuel assembly when a fuel assembly is inserted into the cleaning chamber. The flow diverter assembly acts so that each cleaning chamber is supplied with suction flow whenever there is a fuel assembly in the cleaning chamber. When a cleaning chamber is empty, the flow diverter acts to block the suction flow from the filtration system, forcing suction flow through the opposite cleaning chamber. The flow diverter only provides suction head to a cleaning chamber when there is a fuel assembly in the cleaning chamber. When both cleaning chambers are empty, suction pressure from the pump increases to the point that the flow diverters in both chambers open sufficiently to maintain flow through the pumps and prevent the pumps from cavitating.

US Patent:

7738377, Jun 15, 2010

Filed:

May 22, 2006

Appl. No.:

11/438630

Inventors:

Myra E. Agostino - Jefferson MD, US
Willa K. Ehrlich - Highland Park NJ, US
David R. Gross - South River NJ, US
Daniel F. Hurley - Marlboro NJ, US
Jeanette LaRosa - Kingston NJ, US
Carl B. Rexroad - Oak Ridge NJ, US

Assignee:

AT&T Intellectual Property II, L.P. - Reno NV

International Classification:

G01R 31/08

US Classification:

370233, 370234

Abstract:

A method and apparatus for analyzing traffic arriving at and/or departing from a traffic aggregate defined as a given IP-related protocol, a given port associated with a given protocol, an IP address or subset of IP addresses, or by other traffic aggregation, during a given time interval, to determine whether there is a significant increase or decrease in traffic aggregate's traffic volume as compared to the traffic aggregate's expected traffic volume are disclosed. In one embodiment, the present method defines a traffic share ratio threshold associated with a given protocol or a given protocol port or a given IP address or a given subset of IP addresses or other traffic aggregation using said collected volumetric traffic data. The present method also defines a current traffic share, a baseline traffic share and a traffic share ratio to be evaluated for the said traffic aggregate. In turn, the present method raises an alarm if the traffic aggregate's traffic share ratio to be evaluated exceeds or falls below the traffic share ratio threshold defined for the traffic aggregate.

US Patent:

8052879, Nov 8, 2011

Filed:

May 30, 2008

Appl. No.:

12/130866

Inventors:

David J. Gross - Bethesda MD, US
David Arguelles - Herndon VA, US

Assignee:

Dominion Engineering, Inc. - Reston VA

International Classification:

B01D 37/04
B01D 29/66
B01D 29/72

US Classification:

210791, 210798, 210741, 210108

Abstract:

A filter system and associated methods of filtering utilize a combination of ultrasonically enhanced backwashing and a modified filter media configurations for increasing the specific loading on a portion of the filter media, thereby tending to increase the total particulate holding capacity of the improved filter. Depending on factors such as the filter configuration, the particulate size distribution and the differential pressure that can be maintained across the filter, it is expected that the particulate holding capacity can be more than doubled relative to a conventional filter having similarly configured filter media.

US Patent:

8372206, Feb 12, 2013

Filed:

Jan 14, 2009

Appl. No.:

12/353950

Inventors:

David J. Gross - Bethesda MD, US
David Arguelles - Herndon VA, US

Assignee:

Dominion Engineering, Inc. - Reston VA

International Classification:

B08B 3/12

US Classification:

134 1, 134184, 367165

Abstract:

Provided are a range of ultrasonic cleaning assemblies that include radiating surfaces activated by corresponding arrays of planar transducers configured to increase the power applied to a reduced volume of fluid associated with a fuel assembly, thereby increasing that applied power density for improved cleaning. The individual ultrasonic cleaning assemblies may be arranged in a variety of modules that, in turn, may be combined to increase the length of the cleaning zone and provide variations in the power density applied to improve the cleaning uniformity.

US Patent:

20060107975, May 25, 2006

Filed:

Sep 20, 2005

Appl. No.:

11/229617

Inventors:

David Arguelles - Washington DC, US
David Gross - Bethesda MD, US
Joshua Luszcz - Falls Church VA, US

International Classification:

B08B 3/10

US Classification:

13405600R, 134184000

Abstract:

The present invention relates to an improved ultrasonic cleaning system incorporating one or more improvements including, for example, permanently-attached flexible cables, waterproof bulkhead connectors provided on the transducers, submersible breakout assemblies, rigid cable guides and retainers, and at least one electronic switching unit whereby multiple ultrasonic transducers can be selectively driven by a single ultrasonic generator. The improved ultrasonic cleaning system may be configured with various transducer arrangements including, for example, elongated transducers provided on a carrying frame or structure and a more planar array configuration that may be assembled from a plurality of transducer subassemblies.

US Patent:

20110217976, Sep 8, 2011

Filed:

Mar 15, 2011

Appl. No.:

13/048550

Inventors:

Ilan Kaplan - North Bethesda MD, US
Daniel Francis DiFonzo - Vienna VA, US
Kevin Arthur Bruestle - Falls Church VA, US
David Gross - Saddle River NJ, US
Victor Boyanov - Sofia, BG
Stanimir Kamenopolski - Sofia, BG

Assignee:

RAYSAT ANTENNA SYSTEMS, L.L.C. - Vienna VA

International Classification:

H01Q 1/24
H04W 4/00

US Classification:

455427, 343702, 455 133

Abstract:

A multi-band low-profile, low-volume two-way mobile panel array antenna system is described. Operation of the antenna may automatically switch between bands based on various user-entered parameters.

US Patent:

20160023252, Jan 28, 2016

Filed:

Mar 14, 2014

Appl. No.:

14/776590

Inventors:

- Reston VA, US
Jean E. COLLIN - Chantilly VA, US
Joshua M. LUSZCZ - Falls Church VA, US
Christopher R. CASAREZ - Arlington VA, US
Marc A. KREIDER - Herndon VA, US
David J. GROSS - Bethesda MD, US

International Classification:

B08B 3/12
B08B 9/08

Abstract:

A method of cleaning a vessel having deposits on an interior surface includes removably bonding an ultrasonic transducer to an external wall of the vessel and using the ultrasonic transducer to produce ultrasonic energy coupled into the vessel wall such that at least a portion of the ultrasonic energy is transmitted to the interior surface.

US Patent:

20150311587, Oct 29, 2015

Filed:

May 20, 2014

Appl. No.:

14/282209

Inventors:

- Petah Tikva, IL
Daniel Francis Difonzo - Vienna VA, US
Kevin Arthur Bruestle - Falls Church VA, US
David Gross - Saddle River NJ, US
Victor Boyanov - Sofia, BG
Stanimir Kamenopolski - Sofia, BG

Assignee:

GILAT SATELLITE NETWORKS LTD. - Petah Tikva

International Classification:

H01Q 3/04
H01Q 1/42

Abstract:

A multi-band low-profile, low-volume two-way mobile panel array antenna system is described. Operation of the antenna may automatically switch between bands based on various user-entered parameters.