Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
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| Number | Title | Issue Date |
| 6540924 | Method and a device for treating liquids The invention concerns a method and a device for treating liquids, such as wastewater. According to the invention the liquid is transported by help of a pump (10) from the lower area of a tank (1) through a vertically directed pipe (3) up to a 180 degree ... | 04/01/2003 |
| 6305692 | Seal device A seal device for a submersible machine, such as a pump or a mixer, the seal device being designed as an easily replaceable unit having two mechanical face seals parted by a room for a barrier liquid in which a pump impeller is located. The impeller circu... | 10/23/2001 |
| 6158959 | Pump impeller A pump impeller of a centrifugal or a half axial type meant to pump liquids, mainly sewage water. The pump impeller has a hub (4) provided with one or several vanes (5) the leading edges (6) of which being strongly swept backwards. The periphery (8) of th... | 12/12/2000 |
| 6142736 | Pump impeller A pump impeller of a centrifugal- or a half axial type meant to pump liquids, mainly sewage water, the pump impeller including a hub provided with one or several vanes, the leading edges of which being strongly swept backwards. The size of the sweep angle... | 11/07/2000 |
| 6139260 | Pump having a pump housing with one or more feeding grooves A pump of a centrifugal- or a half axial type meant for pumping liquids, mainly sewage water, the pump having a pump housing and a pump impeller. The pump impeller includes a hub provided with one or several vanes, the leading edges of which being strongl... | 10/31/2000 |
| 5577886 | Sealing device for pump impeller The inlet part of the pump housing includes a collar which concentrically surrounds a corresponding opposite collar formed part of the pump impeller inlet, thus permitting any possible leakage flow to be in parallel with the main flow into the impeller an... | 11/26/1996 |
| 5352088 | Pump housing device The invention concerns a device for pump housings for centrifugal pumps for pumping of polluted liquids. In order to decrease the influence of radial force acting upon the impeller during operation, a partition wall (5) is arranged along a part of the tur... | 10/04/1994 |
| 5310316 | Impeller for a propeller pump The hub is conically formed, and the vanes attached thereto are given a substantially radial direction; consequently, the turning axes of the vanes are situated in the center of the vanes, substantially bisecting the center of the vane chords. The turning... | 05/10/1994 |
| 5221182 | Vane apparatus for clog resistant pump The vanes (6) of a pump housing (5) are designed with strongly back swept leading edges (7) as seen in the direction of the flow, the vanes (6) being given a bulb form in the outward direction.... | 06/22/1993 |
| 4981417 | Closed type impeller An impeller for pumps, turbines, fans, etc., of the closed type, having a number of vanes arranged between cover discs. In order to reduce the secondary flows within the impeller, the secants between the suction side of the vane and the cover discs are di... | 01/01/1991 |
