ASHOK U CHATWANI
Broker in Burlington, MA
License number
Massachusetts 117352
Issued Date
Jul 20, 1989
Expiration Date
Dec 25, 1993
Type
Salesperson
Address
Address
Burlington, MA 01803
Personal information
See more information about ASHOK U CHATWANI at radaris.comName
Address
Phone
388 Great Rd #A12, Acton, MA 01720
47 Cambridge St, Burlington, MA 01803
97 Cambridge St, Burlington, MA 01803
8 Mccarthy Dr, Burlington, MA 01803
5 Everett Cir, Hopkinton, MA 01748
Professional information
Annular Batch Feed Furnace And Process
US Patent:
5447547, Sep 5, 1995
Filed:
Jan 31, 1994
Appl. No.:
8/189196
Inventors:
Victor Goldfarb - Swampscott MA
Andrew W. McClaine - Lexington MA
Jaime A. Woodroffe - North Reading MA
Ashok Chatwani - Burlington MA
David Stickler - Carisle MA
Joseph Stancato - Wilmington MA
Andrew W. McClaine - Lexington MA
Jaime A. Woodroffe - North Reading MA
Ashok Chatwani - Burlington MA
David Stickler - Carisle MA
Joseph Stancato - Wilmington MA
Assignee:
Gas Research, Inc. - Chicago IL
International Classification:
C03B 516, C03B 300, C03B 500
US Classification:
651341
Abstract:
A particle suspension furnace having an upper injector section, an intermediate combustion section and a lower separation section. The injector section comprises a central fuel conduit for supplying a rich fuel/air mixture to a burner at the base of the injector section, and a concentric annular mixing chamber for supplying a mixture of reactive or meltable batch particles and oxygen to the burner. The fuel-rich burner flame diffuses radially-outwardly to consume the peripherally-supplied oxygen and form an oxygen/fuel combustion mixture having a predetermined selected stoichiometry which is variable above and below 1:1 stoichiometry depending upon whether a reducing or oxidizing atmosphere is desired. The suspended particles absorb heat to quench the burner temperature and reduce the NO. sub. x pollutant formation.
Cement Shaft Suspension Furnace And Process
US Patent:
5044942, Sep 3, 1991
Filed:
Aug 23, 1990
Appl. No.:
7/571742
Inventors:
Ashok U. Chatwani - Burlington MA
Rajiv Tiwary - Glenshaw PA
Jaime A. Woodroffe - Andover MA
Oswald L. Zappa - Stoneham MA
Rajiv Tiwary - Glenshaw PA
Jaime A. Woodroffe - Andover MA
Oswald L. Zappa - Stoneham MA
Assignee:
Gas Research Institute - Chicago IL
International Classification:
F27D 108
US Classification:
432 99
Abstract:
Process and furnace for producing clinkered cement pellets from pellets of cement-forming batch materials without melting, fusion and agglomeration of said pellets. The furnace comprises an elongate vertical suspension shaft having top, intermediate and bottom portions. Pellets are fed at the top and heated to calcining temperatures before exiting the shaft into a pre-clinkering zone beyond the bottom. The pellets are heated to pre-clinkering temperatures and deposited on a porous pellet bed through which cooling air is forced to control the exothermic clinkering reaction and to regulate the speed at which the pellets migrate through the shaft.