Patents by Inventor Lorna K. Edmondson

Lorna K. Edmondson 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).

  • Patent number: 8556135
    Abstract: An end piece is adapted for connection and fluid communication with a dip tube for drawing in matter through suction. The end piece includes an upper part and a lower part. The upper part is connected with the bottom end of the tube. The lower part includes an upper base, a lower base and an enclosing wall by which the lower base is joined to the upper base. The enclosing wall defines a hollow space between the upper base and the lower base. The lower base is larger in area than the upper base such that the hollow space is tapered toward the upper base. The lower base provides an opening for matter to enter.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: October 15, 2013
    Assignee: Dometic Corporation
    Inventor: Lorna K. Edmondson
  • Publication number: 20110101038
    Abstract: An end piece is adapted for connection and fluid communication with a dip tube for drawing in matter through suction. The end piece includes an upper part and a lower part. The upper part is connected with the bottom end of the tube. The lower part includes an upper base, a lower base and an enclosing wall by which the lower base is joined to the upper base. The enclosing wall defines a hollow space between the upper base and the lower base. The lower base is larger in area than the upper base such that the hollow space is tapered toward the upper base. The lower base provides an opening for matter to enter.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 5, 2011
    Applicant: DOMETIC CORPORATION
    Inventor: Lorna K. Edmondson
  • Patent number: 7373946
    Abstract: A vacuum tank assembly is provided for use on an RV or a boat and includes a two-piece vacuum tank. The two-piece vacuum tank includes a body and a removable top with a gasket located between the body and removable top. A dip tube is integrated into the removable top, thus, forming an opening in the removable top and thereby reducing maintenance problems associated with mechanically attached dip tube assemblies. A vacuum pump is provided to pump the waste out of the vacuum tank into a holding tank.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: May 20, 2008
    Assignee: Dometic Sanitation Corporation
    Inventors: James A. Sigler, Lorna K. Edmondson, Steven L. Miko
  • Patent number: 6782563
    Abstract: A vacuum tank assembly includes a vacuum tank that has a low profile and will fit in small, and particularly low height, compartments of a boat or RV. The tank is connected to a vacuum toilet and a vacuum pump during use. The tank preferably has a generally rectangular prism configuration, and has a front surface in which openings for receipt of a dip tube assembly, sewage inlet (from the toilet), and vacuum switch are provided. The dip tube assembly includes an adaptor operatively connected to the vacuum pump and an evacuator component which has a generally tubular configuration and a substantially flat open bottom closely overlying the bottom interior of the tank. A locator tab cooperates with a cut out in the tank front surface to properly position the evacuator open bottom adjacent the tank bottom.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: August 31, 2004
    Assignee: Sealand Technology, Inc.
    Inventor: Lorna K. Edmondson
  • Publication number: 20040025237
    Abstract: A vacuum tank assembly includes a vacuum tank that has a low profile and will fit in small, and particularly low height, compartments of a boat or RV. The tank is connected to a vacuum toilet and a vacuum pump during use. The tank preferably has a generally rectangular prism configuration, and has a front surface in which openings for receipt of a dip tube assembly, sewage inlet (from the toilet), and vacuum switch are provided. The dip tube assembly includes an adaptor operatively connected to the vacuum pump and an evacuator component which has a generally tubular configuration and a substantially flat open bottom closely overlying the bottom interior of the tank. A locator tab cooperates with a cut out in the tank front surface to properly position the evacuator open bottom adjacent the tank bottom.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 12, 2004
    Inventor: Lorna K. Edmondson
  • Patent number: 6618866
    Abstract: A vacuum tank assembly includes a vacuum tank that has a low profile and will fit in small, and particularly low height, compartments of a boat or RV. The tank is connected to a vacuum toilet and a vacuum pump during use. The tank preferably has a generally rectangular prism configuration, and has a front surface in which openings for receipt of a dip tube assembly, sewage inlet (from the toilet), and vacuum switch are provided. The dip tube assembly includes an adaptor operatively connected to the vacuum pump and an evacuator component which has a generally tubular configuration and a substantially flat open bottom closely overlying the bottom interior of the tank. A locator tab cooperates with a cut out in the tank front surface to properly position the evacuator open bottom adjacent the tank bottom.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 16, 2003
    Assignee: Sealand Technology, Inc.
    Inventor: Lorna K. Edmondson