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Actress Jamie Lee Curtis is a patented inventor - she created a diaper equipped with a premoistened baby wipe. And that's no act!
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| Number | Title | Issue Date |
| 7351044 | Multi-stage piston type compressor In order to achieve a high level of impermeability with a low closing force for the sealing elements of a multistage piston compressor, the overflow channel (19) in the valve piston (9) opens into at least two passages (26, 27) and the sealing p... | 04/01/2008 |
| 6846164 | Multi-cylinder compressor having plural intake ports in a bearing plate and a cover member forming a sealed space over the bearing plate The purpose of the present invention is to provide a multi-cylinder compressor permitting to increase a gas inflow into the housing without enlarging the intake ports of the bearing plate. The bearing plate 12 bearing the crankshaft 9 is provided with ... | 01/25/2005 |
| 6206663 | Piston pump The invention relates to a piston pump (1) for delivering a fluid at low pressure and at a higher pressure, a higher delivery volume being provided in one pumping cycle at low pressure than at a higher pressure, having a low-pressure delivery piston (4), ... | 03/27/2001 |
| 5807078 | Hand air pumps A hand air pump includes a cylinder having a relatively small chamber and a relatively large chamber defined therein. A relatively small piston is slidably received in the relatively small chamber, and a relatively large piston is slidably received in the... | 09/15/1998 |
| 5658134 | Compressor with suction valve in piston A compressor which provides for minimum clearance in the compression chamber while substantially reducing the heat normally experienced by the piston during the compression stroke of a compressor of this type. The suction valve(s) of the compressor is con... | 08/19/1997 |
| 5605446 | High viscosity material pump having valved priming piston A reciprocable liquid pump having a priming cylinder affixed beneath the lower valve housing, and a priming piston rod affixed to the lower end of the pump piston valve assembly. A priming piston and priming valve are affixed to the lower end of the primi... | 02/25/1997 |
| 5525044 | High pressure gas compressor There is presented a gas compressor including a housing defining adjacent first and second chambers in axial alignment, a rod extending through the first chamber and into the second chamber, a tubular projection extending from a first end of the housing i... | 06/11/1996 |
| 5503736 | Hydroboost piston pump for reverse osmosis system A booster pump for a reverse osmosis water purification system. The booster pump has a spring return piston that is stroked by the pressure of feedwater. The pump also has a pair of solenoid control valves that control the flow of feedwater into and out o... | 04/02/1996 |
| 5180283 | Manual two-stage air pump A manually operated pump includes a pulley sheave oppositely wound with cord and rotatably mounted on a support element, a two-stage pump, and a reciprocal action shaft. The shaft is mounted eccentrically through the assembled pump, including through a cl... | 01/19/1993 |
| 4413953 | Two-stage hydraulic piston pump A two-stage piston pump has serially arranged pump chambers each having an input passage and a delivery passage. The first stage has a larger displacement than the second stage such that complete filling of the second stage is attained. The piston of the ... | 11/08/1983 |
| 4165205 | Multi-stage pump A multi-stage pumping assembly comprising a plurality of pumping units arranged end to end in an elongate cylindrical housing. Each pumping unit comprises a solenoid which when energized causes a pumping piston to retract downwardly on its intake stroke, ... | 08/21/1979 |
| 4018545 | Mix blending pump A cylinder houses a slidable piston that is separated into two axially spaced portions. A rod interconnects the portions and permits lost motion between the portions when the piston is slid in either direction in the cylinder. By valving and conduits, the... | 04/19/1977 |
