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US 5,857,224 AGranted
Pressure flush tank for use in a toilet enclosure
AssigneeSloan Valve Company
InventorsErik J. Oberg, Ming Ge, Danny G. Orlowski, Jr.
Life of this patent
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AssigneeSloan Valve Company
InventorsErik J. Oberg, Ming Ge, Danny G. Orlowski, Jr.
Estimating the term…
A pressure flush tank for toilets is formed and adapted to be located within a toilet enclosure and is preferably formed of a non-metallic material such as plastic. The pressure flush tank has an essentially rectangular vertical cross section and an essentially rectangular horizontal cross section, with the tank including an upper housing portion and a lower housing portion. There is a peripheral projection on the lower surface of the upper housing portion and a peripheral recess along a facing surface of the lower housing portion, with the projection being positioned within and ultrasonically welded to the recess. Each of the housing portions has side walls and end walls, with each housing portion having reinforcing interior walls extending between opposing side walls to provide strength and rigidity for the pressure flush tank.
A pressure flush tank for toilets, which tank is for location within a toilet enclosure, said pressure flush tank being formed of a non-metallic material and having an essentially rectangular vertical cross section and an essentially rectangular horizontal cross section, said tank including an upper housing portion and a lower housing portion, one of said upper and lower housing portions having a peripheral projection along a surface facing the other housing portion and the other housing portion having a peripheral recess within which said peripheral projection is located,
Dependencies are inferred from the claim text.