Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 6872058 | Travelling volume pump chamber surface arrangement A surface arrangement (30) adapted for use in a travelling volume pump. The pump (50) has a pumping chamber defined between first and second opposed pumping chamber surfaces (52, 54), which extend from an inlet to an outlet of the pump in a pump... | 03/29/2005 |
| 6270326 | Transfusion device and liquid supply tube The structural complexity of conventional transfusing devices is eliminated, and it is made possible to supply a minute amount of liquid medicine with high accuracy with a simple structure, whereby a portable transfusion pump is realized. A cylindrical ro... | 08/07/2001 |
| 6102678 | Peristaltic pump The invention is a peristaltic pump having a particularly simple construction and a low axial bulk. The pump (1) includes a rotor (20) having rollers (21,22,23) which roll against a tube (14) containing the liquid to be pumped. The compression of the tube... | 08/15/2000 |
| 5620313 | Worm pump for flowable media A worm pump has an eccentric worm rotor rotatable in a stator to compress tubes which thus carry respective flowable media so that these media are forced through the tubes. The tubes are received in recesses in the stator wall which preferably is composed... | 04/15/1997 |
| 4558991 | Wave pump assembly A positive displacement wave pump assembly for pumping liquid or gaseous or plastic fluids or mixtures thereof with solids or the like, including an elongated cylindrical tube or barrel having an upstream end and a downstream or discharge end, a drive sha... | 12/17/1985 |
| 4544329 | Peristaltic pump having a spiral cam and straight peristaltic tube An improved peristaltic pump is disclosed which comprises a plurality of peristaltic tubes which extend from a central suction port to a common discharge chamber. A spiral cam engages the tubes and closes the lumens defined thereby. The spiral cam is rota... | 10/01/1985 |
| 4407436 | Metering and/or feeding device for materials A metering and/or feeding device for materials is disclosed. A plurality of vertically oriented, elastic-walled tubes are arranged at equal distances from the axis of a rotatable helical rod which, as it rotates, sequentially engages and constricts each o... | 10/04/1983 |
