Patents by Inventor Calla Duvall

Calla Duvall 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).

  • Disposable protector for engaging a clogged toilet and containing splashes in the clogged toilet occurring during unclogging of the clogged toilet by a plunger
    Patent number: 7310831
    Abstract: A disposable protector containing splashes in a clogged toilet during plunging. A frame includes a non-continuous hoop allowing to the hoop to sealingly conform to just below the rim of the clogged and a handle having a pair of arms generally conforming to, and capturing, the rim of the clogged toilet. A portion of each arm criss-cross each other so as to allow the hoop to decrease in size when the handle is squeezed for insertion into the clogged toilet just below the rim of the clogged toilet. The shield removably receives the hoop and includes upper and lower sheets attached to each other at their peripheries, except for a portion thereof that is sufficient in length to allow insertion of the hoop into the shield and removal therefrom when the handle is squeezed and the size of the hoop is reduced.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: December 25, 2007
    Inventors: Chris Duvall, Calla Duvall
  • Disposable protector for engaging a clogged toilet and containing splashes in the clogged toilet occuring during unclogging of the clogged toilet by a plunger
    Publication number: 20070226885
    Abstract: A disposable protector containing splashes in a clogged toilet during plunging. A frame includes a non-continuous hoop allowing the hoop to sealingly conform to just below the rim of the clogged and a handle having a pair of arms generally conforming to, and capturing, the rim of the clogged toilet. A portion of each arm criss-cross each other so as to allow the hoop to decrease in size when the handle is squeezed for insertion into the clogged toilet just below the rim of the clogged toilet. The shield removably receives the hoop and includes upper and lower sheets attached to each other at their peripheries, except for a portion thereof that is sufficient in length to allow insertion of the hoop into the shield and removal therefrom when the handle is squeezed and the size of the hoop is reduced.
    Type: Application
    Filed: February 13, 2004
    Publication date: October 4, 2007
    Inventors: Chris Duvall, Calla Duvall