ApplicationNo. 310637 filed on 05/12/1999
US Classes:4/255.11, Force cup (e.g., a plunger)4/255.01, OBSTRUCTION REMOVER4/255.05, With force cup (e.g., a plunger)4/255.08With head structure that grips drain opening or pipe
ExaminersPrimary: Recla, Henry J.
Assistant: Nguyen, Tan T.
Attorney, Agent or Firm
International ClassE03D 009/00
AbstractA toilet bowl plunger for use with a new narrow throat 1.6 gallon toilet that can be used equally well with older toilets. The head portion of the plunger is a pleated bellows consisting of two sections, a conically tapering section and a constant average diameter section. The conically tapering section has larger diameter at the rear end of the head and tapers down to a narrower diameter in a direction away from the rear end of the head. The bellows then continues into the constant diameter section in a direction away from the rear end and towards the front end of the head. The constant diameter section resembles an elephant-like trunk or nose. When inserted into the toilet bowl, the constant diameter section of the bellows head penetrates into the throat, while a forward end of the tapered section seats over the outer perimeter of the mouth of the throat. The constant diameter section or nose of the head curves to follow the path of the throat. The stiffer forward portion of the nose follows the throat without compressing or jamming. As pressure is applied downward on the handle, the tapered section of the bellows compresses against the mouth of the throat forming a seal. As a result, pressure is generated in the throat by the compression of the bellows and/or water/air is directed through the nose section that is curved to follow the path of the throat and thus directed in a direction towards any obstruction in the throat for effectively dislodging the obstruction.