Patents Examined by Betsy Morrison Hoey
  • Patent number: 7029589
    Abstract: A method or process of treating a contaminated fluid (10) having at least one contaminant having a property selected from the group consisting of being volatile, hazardous, tacky and a combination thereof is provided. The method comprises contacting the contaminated fluid with an effective amount of an agent (12) selected from oxidizing agents, free radical producing agents and a combination thereof for an effective amount of time to convert a substantial amount of the at least one contaminant to at least one corresponding modified contaminant having a property selected from the group consisting of being non-volatile, less volatile than the converted contaminant non-hazardous, less hazardous than the converted contaminant, non-tacky and a combination thereof; and generating a treated fluid (14) having a level of the at least one contaminant and of the at least one corresponding modified contaminant to allow the treated fluid to at least meet requirements for release, reuse or further treatment.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: April 18, 2006
    Inventor: Michael P. McGinness
  • Patent number: 6824695
    Abstract: A self-contained, portable water purification system, including (a) an ozone supply, (b) an ozone contact chamber mixing a contaminated or potentially contaminated water stream with ozone generated by such ozone supply, (c) an ozone destruction unit for destructing ozone contained in the water stream and converting said water stream into an oxygen-rich and ozone-depleted water stream, and (d) a downstream biologically active carbon filter, for receiving such oxygen-rich and ozone-depleted water stream and biologically destructing at least a portion of contaminants contained therein.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 30, 2004
    Inventor: Gerard F. Tempest, Jr.
  • Patent number: 6814875
    Abstract: A solvent separator includes an introduction member which introduces a mixture including chlorine containing organic solvent and water; a separation unit including a separation member made of a water-repellent and/or lipophilic porous material, which carries out the separation of the mixture; a water drainage member through which water separated by the separation unit is discharged; and a solvent drainage member through which the chlorine containing organic solvent separated by the separation unit is discharged. Also, a method and a device for treating waste liquid are provided by which chlorine containing organic solvent present in waste liquid is selectively separated, decomposed by a photocatalyst, and converted into a harmless substrate.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: November 9, 2004
    Assignee: Yamaha Corporation
    Inventors: Kunimasa Muroi, Yoichi Nagasaki, Akira Ohsawa, Go Ito, Jun Yamamoto
  • Patent number: 6406509
    Abstract: A framed filter media comprising a filter media having a fluid inlet face and a fluid outlet face with peripheral sidewalls. The peripheral sidewalls are attached to a strip frame by an adhesive-potting compound. The continuous strip frame is formed into three or more (up to an infinite number if the sidewall sections(s) is formed into a circular filter frame) sidewall sections having a substantially flat sidewall and at least two projecting filter retaining tabs which form a channel on a first face of the sidewall section for containing the adhesive potting compound. The sidewall sections are separated by corner notches extending through the retaining tabs at least to the substantially flat sidewalls. Two terminal sidewall sections meet to form a seam such that the sidewall sections circumscribe the filter media peripheral sidewalls.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: June 18, 2002
    Assignee: 3M Innovative Properties Company
    Inventor: Dean Duffy
  • Patent number: 6346201
    Abstract: The invention provides an ozonated form of the compound tetrasilver tetroxide, a water disinfection method employing the ozonated tetrasilver tetroxide and compositions comprising the ozonated tetrasilver tetroxide. Examples of compositions of the invention include beverages, sterilants and disinfectants. In addition, the invention provides a method for increasing a half-life of ozone in water, where the method includes providing tetrasilver tetroxide in the water along with the ozone.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: February 12, 2002
    Assignee: ICF Technologies, Inc.
    Inventor: I. Cecil Felkner