JAMES LAWRENCE DWYER
Pilots at Main St, West Concord, MA
License number
Massachusetts A2163760
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
245 Main St, West Concord, MA 01742
Professional information
Nozzle Arrangement For Collecting Components From A Fluid For Analysis
US Patent:
5772964, Jun 30, 1998
Filed:
Feb 8, 1996
Appl. No.:
8/599020
Inventors:
Thomas H. Prevost - Bergen NY
James L. Dwyer - Concord MA
James L. Dwyer - Concord MA
Assignee:
Lab Connections, Inc. - Marlborough MA
International Classification:
G01N 3002
US Classification:
422 70
Abstract:
A system for processing fluid carrying a component by depositing the component onto a medium and evaporating the fluid. The system includes a collection medium and a nozzle arrangement. The nozzle arrangement includes a long capillary with a first, inlet end for receiving a flow of the fluid carrying the component and a second, outlet end arranged near the collection medium. A heater is provided for heating the capillary. A sheath gas is directed toward the collection medium in a manner that the fluid is exposed to the sheath gas after emerging from the outlet end of the capillary. The long capillary may be bent, e. g. , in a helical configuration, so that, in spite of its length, a nozzle of practical size for an analytical instrument can be provided.
Nozzle For Matrix Deposition
US Patent:
2003022, Dec 11, 2003
Filed:
Jun 10, 2002
Appl. No.:
10/166471
Inventors:
James Dwyer - Concord MA, US
International Classification:
B01L003/02
US Classification:
422/099000, 422/100000
Abstract:
A spray nozzle for spraying a matrix reagent onto a foil carrier, for subsequent chromatographic analysis; the nozzle has an interior chamber for receiving a flow of the material sample into a capillary tube. The capillary tube has an open end concentric with gas flowing through the nozzle interior chamber, for causing the gas flow to atomize the material sample into a conical spray pattern. A pair of air jets are directed at the atomized conical spray pattern downstream from the capillary tube end, to flatten and elongate the atomized spray pattern for depositing on a collection medium.