Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8147215 | Reciprocating-piston compressor having non-contact gap seal A reciprocating-piston compressor having at least two working cylinders arranged in series, along a cylinder axis is described. The compressor includes a piston in each of the cylinders, guided in an axially movable manner, and a common axially actuated piston rod o... | 04/03/2012 |
| 7566206 | Linear compressor for multi-stage compression A linear compressor for multi-compression includes a stationary cylinder, a moving piston, and a stationary piston. The stationary cylinder has a first compression chamber formed therein. The stationary cylinder is provided at one side thereof with an outlet part. T... | 07/28/2009 |
| 6702556 | Multi-cylinder compression pump The invention concerns a pump for compression of gases, such as air, of the type comprising a first cylinder and a second cylinder, a piston dividing said first cylinder into a first chamber located ahead of the piston and a second chamber located behind ... | 03/09/2004 |
| 6145311 | Pneumo-hydraulic converter for energy storage In order to maintain high efficiency close, to isothermy despite high frequencies in a pneumo-hydraulic converter with reciprocating pistons, pipe cluster-heat exchange pipes (38) are provided in the gas working chambers of the converter and the exchange ... | 11/14/2000 |
| 5885061 | Pneumatic pump A pump for compression of air includes a first inner stationary cylinder (1) arranged a second displaceable cylinder (2). A piston (3) arranged for reciprocating motion together with the first cylinder (1) divides the interior space of the first cylinder ... | 03/23/1999 |
| 5507626 | Telescopic pump A telescopic manual pump has a first cylinder, a second cylinder received in the first cylinder, a third cylinder received in the second cylinder, a piston slidably received in the third cylinder and a stem linked to the piston. The first cylinder defines... | 04/16/1996 |
| 5437542 | Positive displacement pump system An improved positive displacement pumping system uses a pair of pumps operating in opposition to one another to provide continuous and constant volumetric flow at a constant predetermined pressure.... | 08/01/1995 |
| 4334833 | Four-stage gas compressor A four-stage gas compressor including: a double-acting piston operable by pressurized oil and provided with first and second hollow opposed piston rods the first of which is connected to a first-stage piston and the second of which is connected to a secon... | 06/15/1982 |
| 4239460 | Cryogenic pump for liquid gases The invention relates to a cryogenic pump for liquid gases which comprises, within a housing, a cylinder connected to the supply of liquified gas through a non return valve and to an overflow duct. A movable piston is displaceble within this cylinder defi... | 12/16/1980 |
| 4047845 | Cyclic pump The output from the pump chamber of a higher volume piston pump is divided between a return bypass and the pump chamber of a smaller volume piston pump; the piston of the high volume piston pump is periodically raised by a cam to draw fluid into the pump ... | 09/13/1977 |
| 4038961 | Pneumatic rifle and hand gun A pneumatic rifle and hand gun for discharging a projectile under the influence of a source of compressed gas such as air. The pressurization of the source is achieved by with pressure increasing mechanisms which compress atmospheric air in two separate s... | 08/02/1977 |
