Patents by Inventor Gary A. Raemhild

Gary A. Raemhild 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).

  • Methods for recycling flush water and waste solids in a wood panel fabrication process
    Patent number: 5942336
    Abstract: A method for recycling contaminated flush water from a wet electrostatic precipitator emission control system in a wood panel fabrication process. The recycled flush water containing solid byproducts from the emission control system is combined with wood products in a wood panel fabrication mix in a predetermined ratio of flush water to wood products, resulting in a finished wood panel having improved internal bond strengths and formaldehyde scavenging capacity without the need for excess binding resins and formaldehyde scavengers.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: August 24, 1999
    Inventors: Blaine F. Sorenson, Gary A. Raemhild
  • Composition for use in the production of fabricated wood panels
    Patent number: 5897697
    Abstract: A method for recycling contaminated flush water from a wet electrostatic precipitator emission control system in a wood panel fabrication process. The recycled flush water containing solid byproducts from the emission control system is combined with wood products in a wood panel fabrication mix in a predetermined ratio of flush water to wood products, resulting in a finished wood panel having improved internal bond strengths and formaldehyde scavenging capacity without the need for excess binding resins and formaldehyde scavengers.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: April 27, 1999
    Inventors: Blaine F. Sorenson, Gary A. Raemhild
  • Methods for recycling flush water and waste solids in a wood panel fabrication process
    Patent number: 5810172
    Abstract: A method for recycling contaminated flush water from a wet electrostatic precipitator emission control system in a wood panel fabrication process. The recycled flush water containing solid byproducts from the emission control system is combined with wood products in a wood panel fabrication mix in a predetermined ratio of flush water to wood products, resulting in a finished wood panel having improved internal bond strengths and formaldehyde scavenging capacity without the need for excess binding resins and formaldehyde scavengers.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: September 22, 1998
    Inventors: Blaine F. Sorenson, Gary A. Raemhild
  • Method for recovering particulate and scavenging formaldehyde in a wood panel fabrication process
    Patent number: 5285903
    Abstract: A thin film membrane filtration system recovers particulate from the waste water stream of a wood panel fabrication process to a desired concentration of approximately 30-50% solid by weight. The high concentration level enables improved transport or disposal. Rather than discard the concentrate, however, the concentrate is added into subsequent wood panel "particle board" batches at a rate of approximately 0.5 to 0.65 gallons per 1000 pounds of wood product. The concentrate reduces press time, serves as a scavenger for tying up formaldehyde and serves as a resin extender for strengthening internal bonds of fabricated panels. The membranes capture the particulate into an accumulated concentrate, while passing permeate output to a recycle water stream.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: February 15, 1994
    Inventors: Blaine F. Sorenson, Gary A. Raemhild