Patents by Inventor Benny S. Yam

Benny S. Yam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Blast media containing MGO
    Patent number: 5338323
    Abstract: A blast media for stripping coatings or other contaminants from a solid surface comprises water soluble abrasive particles and a rinse aid which reduces the amount of water soluble residues of blast media remaining on the targeted surface and which enables any residues which remain to be readily removed by fresh water. The rinse aid can include magnesium oxide or a mixture thereof with one or more surfactants.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: August 16, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Benny S. Yam, Anthony E. Winston
  • Blast media containing surfactant-clathrate compound
    Patent number: 5336281
    Abstract: A blast media for stripping contaminants from a solid surface comprises abrasive particles and a surfactant in the form of a granular surfactant-clathrate compound formed of a surfactant and a water soluble compound having clathration capability such as urea. The surfactant reduces the amount of water soluble residues which remain on the targeted surface and enhances the removal of dirt, grease and oil from the targeted surface.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: August 9, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Anthony E. Winston, Benny S. Yam, Keith A. Jones
  • Method of cleaning using a blast media containing a surfactant-clathrate compound
    Patent number: 5332447
    Abstract: A blast media for stripping contaminants from a solid surface comprises abrasive particles and a surfactant in the form of a granular surfactant-clathrate compound formed of a surfactant and a water soluble compound having clathration capability such as urea. The surfactant reduces the amount of water soluble residues which remain on the targeted surface and enhances the removal of dirt, grease and oil from the targeted surface.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: July 26, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Anthony E. Winston, Benny S. Yam, Keith A. Jones
  • Water soluble blast media containing surfactant
    Patent number: 5316587
    Abstract: A blast media for stripping contaminants from a solid surface comprises water soluble abrasive particles and a surfactant which reduces the amount of water soluble residues of blast media remaining on the targeted surface and which enables any residues which remain to be readily removed by fresh water.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: May 31, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Benny S. Yam, Amy L. Joseph, Anthony E. Winston, Keith A. Jones
  • Less aggressive blast media formed from compacted particles
    Patent number: 5308404
    Abstract: A blast media for stripping contaminants from very soft and sensitive substrates comprises compacted abrasive particles which are formed by compacting very fine particles of the abrasive into larger particles which are friable and which will break apart into fine particles upon contacting the substrate surface.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: May 3, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Benny S. Yam, Amy L. Joseph, Keith A. Jones
  • Blast media containing magnesium oxide
    Patent number: 5308403
    Abstract: A blast media for stripping coatings or other contaminants from a solid surface comprises water soluble abrasive particles and a rinse aid which reduces the amount of water soluble residues of blast media remaining on the targeted surface and which enables any residues which remain to be readily removed by fresh water. The rinse aid can include magnesium oxide or a mixture thereof with one or more surfactants.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: May 3, 1994
    Assignee: Church & Dwight Co., Inc.
    Inventors: Benny S. Yam, Anthony E. Winston
  • Nozzle
    Patent number: 4462543
    Abstract: A spray mixing nozzle and a method for reacting an acidic fluid and a basic fluid by using the spray mixing nozzle. The nozzle includes a central channel, at least one intermediate annular channel surrounding said central channel, an outer annular channel and a mixing chamber having a generally cylindrical upper section, a generally conically-shaped lower section and an axially aligned discharge orifice. The acidic fluid and the basic fluid are directed through the central channel and the intermediate annular channel into the upper section of the mixing chamber at relatively low velocities and a pressurized gas is simultaneously directed through the outer annular channel into the upper section of the mixing channel at a relatively high velocity. The high velocity gas acts to strip apart and at least partially atomize the acidic fluid stream and the basic fluid stream in the upper section of the mixing chamber.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: July 31, 1984
    Assignee: The Procter & Gamble Company
    Inventor: Benny S. Yam