David Scott Snyder

Address:

2939 Monocacy Btm Rd, Adamstown, MD 21710

VIN:

4S4BP61C076333074

Make:

SUBARU

Model:

OUTBACK

Year:

2007

US Patent:

6509697, Jan 21, 2003

Filed:

Jan 30, 2001

Appl. No.:

09/771671

Inventors:

Robert Ervin - Gaithersburg MD
Gregory Walter - Frederick MD
David Snyder - Frederick MD

Assignee:

Fusion UV Systems, Inc. - Gaithersburg MD

International Classification:

H05B 4124

US Classification:

315248, 315 3951, 315112, 315344, 347100, 313 35

Abstract:

A compact, electrodeless, microwave-powered lamp (e. g. , ultraviolet light emitting lamp) is provided, as well as methods of using this lamp. The lamp includes a microwave generator, waveguide and RF cavity. The RF slot between the waveguide and RF cavity, for introducing microwaves from the waveguide into the RF cavity, extends through an end member forming the RF cavity rather than through the elliptical-shaped reflector; and the RF slot is aligned with the bulb. Cooling air for cooling the bulb passes through the RF slot, and preferably this cooling air passes by both the bulb and microwave generator for cooling both. The bulb is rotated during use. The compact size of the lamp facilitates its use in small devices, such as inkjet printers for office use to cure ultraviolet light curable inkjet inks, among other uses.

US Patent:

7057183, Jun 6, 2006

Filed:

Apr 30, 2004

Appl. No.:

10/834877

Inventors:

Joe T. May - Leesburg VA, US
David C. Snyder - Frederick MD, US
James M. Raymont - Sterling VA, US
Matthew J. McConnell - Ashburn VA, US
Edward A. Casacia - Sterling VA, US
Kyle L. Bostian - Frederick MD, US

Assignee:

Electronic Instrumentation and Technology, Inc. - Sterling VA

International Classification:

G01J 1/42

US Classification:

250372

Abstract:

A radiometer that incorporates multiple UV bandwidth sensors, defined in nanometers, and includes connectors for inserting a cable that is used to connect to another sensor, or to a data collection module (DCM) in a multidrop, or daisy-chain arrangement. Each sensor can be positioned at any point on a three-dimensional work piece, and will receive UV energy at the aperture having an optical component. The collected energy is directed to a detector in the sensor. A processor in the body of the sensor then computes the amount of UV radiation based on signals from the detector. This information is transferred to and stored in a data collection module to which the sensor string is connected. Data stored in the DCM can then be transferred to a computer for display purposes. The sensors and DCM can be tethered to the computer for real-time measurement readings when adjusting the UV lamps.

US Patent:

7183558, Feb 27, 2007

Filed:

Feb 16, 2006

Appl. No.:

11/354973

Inventors:

Joe T. May - Leesburg VA, US
David C. Snyder - Frederick MD, US
James M. Raymont - Sterling VA, US
Matthew J. McConnell - Ashburn VA, US
Edward A. Casacia - Sterling VA, US
Kyle L. Bostian - Frederick MD, US

Assignee:

Electronic Instrumentation and Technology, Inc. - Sterling VA

International Classification:

G01J 1/42

US Classification:

250372

Abstract:

A radiometer that incorporates multiple UV bandwidth sensors, defined in nanometers, and includes connectors for inserting a cable that is used to connect to another sensor, or to a data collection module (DCM) in a multidrop, or daisy-chain arrangement. Each sensor can be positioned at any point on a three-dimensional work piece, and will receive UV energy at the aperture having an optical component. The collected energy is directed to a detector in the sensor. A processor in the body of the sensor then computes the amount of UV radiation based on signals from the detector. This information is transferred to and stored in a data collection module to which the sensor string is connected. Data stored in the DCM can then be transferred to a computer for display purposes. The sensors and DCM can be tethered to the computer for real-time measurement readings when adjusting the UV lamps.

US Patent:

7601964, Oct 13, 2009

Filed:

Apr 10, 2007

Appl. No.:

11/733516

Inventors:

Joe T. May - Leesburg VA, US
Matthew J. McConnell - Ashburn VA, US
David C. Snyder - Frederick MD, US

Assignee:

Electronic Instrumentation & Technology, Inc. - Sterling VA

International Classification:

G01J 1/42

US Classification:

250372, 250365, 25037001

Abstract:

A detector receives energy pulses and a lossy integration circuit generates a lossy integration that, for each pulse, increases over the pulse duration to a maximum value and then decays. The lossy integration is sampled, with a sampling rate and decay rate such that the sample is within a given acceptable error of the maximum value. The sample represents the pulse total energy, within the given acceptable error. An optional circuit and processing function calculates a total accumulated energy over a plurality of pulses.