One Fluid Discharges Into Other In Concentric Conical Portion Of Outer Conduit Patents (Class 239/434.5)
  • Patent number: 6338444
    Abstract: A spray nozzle has a pre-chamber and a mixing region. A first inlet defines a first fluid flow path for admittance of a first fluid to the pre-chamber. A second inlet defines a second fluid flow path which is crossed by the first fluid flow path for admittance of a second fluid to the pre-chamber. A wall is positioned between the pre-chamber and the mixing region and has an aperture therethrough coaxial with the first fluid flow path. Fluid can pass from the mixing region out of the spray nozzle through an outlet, the outlet not lying on the first and second fluid flow paths. A first fluid entering through the first inlet mixes with a second fluid entering through the second inlet in the mixing region prior to the mixed first and second fluids passing out through the outlet.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 15, 2002
    Assignee: Lurmark Limited
    Inventor: Trevor William Bartlett Swan
  • Patent number: 6322000
    Abstract: A shut-off system that is semi-automatic or fully automatic shuts off the mechanism for flowing resin, air and filler to a miniaturized convergent spray gun so as to stop the flow of the ingredients of being sprayed and purging the spray gun so that the residue ingredients do not cure and destroy the gun.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: November 27, 2001
    Assignee: United Technologies Corporation
    Inventors: Jack G. Scarpa, John D. Marlin, Terry Hall, Steven A. Cosby, Jack D. Snyder
  • Publication number: 20010026784
    Abstract: This invention is directed to a method and apparatus of delaying the reaction between a first reactive gas and a second reactive gas as the first reactive gas flows into the second reactive gas. The method comprises the steps of surrounding the first reactive gas with a non-reactive gas to form an insulated first reactive gas; and flowing the insulated first reactive gas into the second reactive gas. A sweep gas is used to impart momentum to the insulated first reactive gas. The apparatus comprises three coaxial tubular members which are used to introduce the first reaction gas, the non-reactive gas, and the sweep gas. The apparatus may be installed in a semiconductor device fabrication process either just upstream of the house exhaust line or upstream of an ODC or air pollution abatement device.
    Type: Application
    Filed: February 25, 1999
    Publication date: October 4, 2001
    Inventor: JOHN C. SCHUMACHER
  • Patent number: 6283386
    Abstract: An apparatus is disclosed for kinetic spray coating of substrate surfaces by impingement of air or gas entrained powders of small particles in a range up to at least 106 microns accelerated to supersonic velocity in a spray nozzle. Preferably powders of metals, alloys, polymers and mixtures thereof or with semiconductors or ceramics are entrained in unheated air and passed through an injection tube into a larger flow of heated air for mixing and acceleration through a supersonic nozzle for coating of an article by impingement of the yieldable particles. A preferred apparatus includes a high pressure air supply carrying entrained particles exceeding 50 microns through an injection tube into heated air in a mixing chamber for mixing and acceleration in the nozzle. The mixing chamber is supplied with high pressure heated air through a main air passage having an area ratio relative to the injection tube of at least 80/1.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: September 4, 2001
    Assignee: National Center for Manufacturing Sciences
    Inventors: Thomas H. Van Steenkiste, John R. Smith, Richard E. Teets, Jerome J. Moleski, Daniel W. Gorkiewicz
  • Publication number: 20010007648
    Abstract: This invention is directed to a method and apparatus of delaying the reaction between a first reactive gas and a second reactive gas as the first reactive gas flows into the second reactive gas. The method comprises the steps of surrounding the first reactive gas with a non-reactive gas to form an insulated first reactive gas; and flowing the insulated first reactive gas into the second reactive gas. A sweep gas is used to impart momentum to the insulated first reactive gas. The apparatus comprises three coaxial tubular members which are used to introduce the first reaction gas, the non-reactive gas, and the sweep gas. The apparatus may be installed in a semiconductor device fabrication process either just upstream of the house exhaust line or upstream of an ODC or air pollution abatement device.
    Type: Application
    Filed: February 15, 2001
    Publication date: July 12, 2001
    Inventor: John C. Schumacher
  • Patent number: 6174161
    Abstract: Method and apparatus for combusting and/or gasifying a generally viscous liquid or a slurry wherein the liquid or slurry are atomized in a central atomization device within a burner housing the central atomization device using a portion of a gaseous oxidant introduced into the burner to atomize the liquid or slurry as it exits the atomization device.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: January 16, 2001
    Assignee: Air Products and Chemical, Inc.
    Inventors: Aleksandar G. Slavejkov, Bryan C. Hoke, Jr., Thomas M. Gosling, John J. Lewnard, David R. Ruprecht