Patents by Inventor Alan Dunn

Alan Dunn 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).

  • Publication number: 20110027060
    Abstract: Loading apparatus 10 for loading material 20 into a container 22 includes a charging receptacle 12. The charging receptacle 12 defines a materials receiving space 14 in which material 20 is receivable in use. The apparatus 10 includes material moving means 24, 26 for moving the material 20 out of the material receiving space 14.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 3, 2011
    Applicant: DUNN BROS. (1995) LIMITED
    Inventors: David Richard Dunn, Karl Stephen Andrew Dunn, Alan Dunn
  • Patent number: 7163630
    Abstract: In a vessel containing a filter bed and containing a mixed liquor containing suspended solids, a system disturbs/dislodges a sludge mat that settles on the filter bed. Thus, the system controls the sludge mat on the filter bed that otherwise may blind the filter bed and significantly reduce or stop process liquid flow into and through the filter bed. The system helps maintain effective vessel effluent flowrates with reduced requirements for filter bed backwashing or other filter bed maintenance. The system includes a sludge mat dislodging member that moves along the filter bed surface, preferably on but substantially not inside the filter bed, to disrupt/dislodge the sludge mat and/or prevent formation of the sludge mat. Preferably, the dislodging member is carried inside the vessel on a moving arm or arms that rotate in a plane parallel to the filter bed surface. The preferred sludge mat dislodging member(s) hang from the rotating arm(s) to slide along the top of the filter bed through the sludge mat.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: January 16, 2007
    Inventors: Dennis Chilcote, Michael S. Gratz, Robert Clifford, John Mills, Gregory Vineretsky, Daniel Mc Graw, Alan Dunn, Bobby Dabbs, Karie Mars
  • Publication number: 20050211628
    Abstract: In a vessel containing a filter bed and containing a mixed liquor containing suspended solids, a system disturbs/dislodges a sludge mat that settles on the filter bed. Thus, the system controls the sludge mat on the filter bed that otherwise may blind the filter bed and significantly reduce or stop process liquid flow into and through the filter bed. The system helps maintain effective vessel effluent flowrates with reduced requirements for filter bed backwashing or other filter bed maintenance. The system includes a sludge mat dislodging member that moves along the filter bed surface, preferably on but substantially not inside the filter bed, to disrupt/dislodge the sludge mat and/or prevent formation of the sludge mat. Preferably, the dislodging member is carried inside the vessel on a moving arm or arms that rotate in a plane parallel to the filter bed surface. The preferred sludge mat dislodging member(s) hang from the rotating arm(s) to slide along the top of the filter bed through the sludge mat.
    Type: Application
    Filed: May 10, 2005
    Publication date: September 29, 2005
    Inventors: Dennis Chilcote, Michael Gratz, Robert Clifford, John Mills, Gregory Vineretsky, Daniel McGraw, Alan Dunn, Bobby Dabbs, Karie Mars
  • Patent number: 6890440
    Abstract: In a vessel containing a filter bed and containing a mixed liquor containing suspended solids, a system disturbs/dislodges a sludge mat that settles on the filter bed. Thus, the system controls the sludge mat on the filter bed that otherwise may blind the filter bed and significantly reduce or stop process liquid flow into and through the filter bed. The system helps maintain effective vessel effluent flowrates with reduced requirements for filter bed backwashing or other filter bed maintenance. The system includes a sludge mat dislodging member that moves along the filter bed surface, preferably on but substantially not inside the filter bed, to disrupt/dislodge the sludge mat and/or prevent formation of the sludge mat. Preferably, the dislodging member is carried inside the vessel on a moving arm or arms that rotate in a plane parallel to the filter bed surface. The preferred sludge mat dislodging member(s) hang from the rotating arm(s) to slide along the top of the filter bed through the sludge mat.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: May 10, 2005
    Assignee: NBE, LLC
    Inventors: Dennis Chilcote, Mike S. Gratz, Robert Clifford, John Mills, Gregory Vineretsky, Daniel McGraw, Alan Dunn, Bobby Dabbs, Karie Mars
  • Publication number: 20040104167
    Abstract: In a vessel containing a filter bed and containing a mixed liquor containing suspended solids, a system disturbs/dislodges a sludge mat that settles on the filter bed. Thus, the system controls the sludge mat on the filter bed that otherwise may blind the filter bed and significantly reduce or stop process liquid flow into and through the filter bed. The system helps maintain effective vessel effluent flowrates with reduced requirements for filter bed backwashing or other filter bed maintenance. The system includes a sludge mat dislodging member that moves along the filter bed surface, preferably on but substantially not inside the filter bed, to disrupt/dislodge the sludge mat and/or prevent formation of the sludge mat. Preferably, the dislodging member is carried inside the vessel on a moving arm or arms that rotate in a plane parallel to the filter bed surface. The preferred sludge mat dislodging member(s) hang from the rotating arm(s) to slide along the top of the filter bed through the sludge mat.
    Type: Application
    Filed: August 1, 2003
    Publication date: June 3, 2004
    Inventors: Dennis Chilcote, Michael S. Gratz, Robert Clifford, John Mills, Gregory Vineretsky, Daniel McGraw, Alan Dunn, Bobby Dabbs, Karie Mars