GEORGE JOSEPH HUDAK
Engineers in Kennett Sq, PA
License number
Pennsylvania PE052106E
Category
Engineers
Type
Professional Engineer
Address
Address
Kennett Sq, PA 19348
Professional information
Method And Apparatus For Atomic Emission Spectroscopy
US Patent:
6774993, Aug 10, 2004
Filed:
Apr 3, 2001
Appl. No.:
09/825048
Inventors:
George J. Hudak - Kennett Square PA
Assignee:
Agilent Technologies, Inc. - Palo Alto CA
International Classification:
G01J 330
US Classification:
356316
Abstract:
A gas plasma emission source includes a solid state signal power source coupled to a resonant cavity. In an alternative embodiment of the invention, an atomic emission detector includes a solid state signal power source coupled to a resonant cavity and a spectrographic detector to sense atomic emissions from a gas within the resonant cavity. In yet another embodiment of the invention, a method of sustaining a plasma includes passing a gas through a resonant cavity and exciting the resonant cavity with signal power from a solid state power source to sustain the plasma in the gas. In another embodiment of the invention, a method of using a solid state power source includes passing a gas through a resonant cavity and coupling sufficient signal power from an output of the solid state power source to sustain a plasma in the gas where the sufficient power is less than 300 watts.
Air Cooled Gas Discharge Detector
US Patent:
6836060, Dec 28, 2004
Filed:
Mar 26, 2001
Appl. No.:
09/817669
Inventors:
George J. Hudak - Kennett Square PA
Assignee:
Agilent Technologies, Inc. - Palo Alto CA
International Classification:
H01J 1726
US Classification:
31323131, 21912149
Abstract:
A method for cooling the discharge tube in a gas discharge or atomic emission detector is described. An air cooled discharge detector is also disclosed. In the method and the detector, air is passed over the outer surface of the discharge tube thereby cooling the outer and inner surface of the discharge tube. Air cooling is utilized in any gas discharge detector including radio frequency powered atomic emission detectors.
System For Monitoring The Progress Of A Chemical Reaction In A Microwave-Assisted Heating System
US Patent:
6034361, Mar 7, 2000
Filed:
Apr 28, 1999
Appl. No.:
9/300492
Inventors:
George J. Hudak - Kennett Square PA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
H05B 666
US Classification:
219702
Abstract:
A system for monitoring the progress of a chemical reaction in a microwave-assisted preparation of a sample, having a microwave energy source, a waveguide coupled to the microwave energy source and having a waveguide cavity, and a resistive load coupled to the waveguide, wherein the sample that is to be subject to microwave-assisted heating is situated in a reaction vessel. The reaction vessel is located in the path of the forward microwave radiation between the microwave energy source and the resistive load. An energy monitoring device is interposed between the reaction vessel and the resistive load so as to monitor the energy not absorbed by the reaction vessel. The energy absorbed by the sample may be calculated in accordance with the level of energy measured by the energy monitoring device to provide a value that indicates the status of the chemical reaction. Alternatively, the reaction vessel may be located in the path of the forward microwave radiation between the microwave energy source and a terminal end of the waveguide. An isolator provided in the form of a circulator coupled to the resistive load is located in the path of the forward microwave radiation between the microwave energy source and the reaction vessel so as to allow the forward energy to proceed to the sample, and to divert reverse energy to the resistive load.