...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7000628 | Electronic air separation system A liquid flow metering system is disclosed which includes a pump disposed between a liquid supply and a reservoir. The reservoir includes an inlet connected to the pump, an air/liquid outlet and a liquid outlet. The air/liquid outlet is connected to an air separatio... | 02/21/2006 |
| 6758964 | Device for separating phases of a diphasic mixture and its application to the determination of the physical and/or chemical parameters of this mixture A device for separating and renewing phases of a diphasic liquid—liquid mixture, in which a first liquid phase and a second liquid phase are circulated in counter current in a liquid—liquid extraction device. The device is in the form of a straight hollow cylind... | 07/06/2004 |
| 6632073 | Air-operated pump with bladder-controlled inlet structure useful in floating-layer separation applications An air-operated, submersible pump features a bladder-controlled inlet applicable to water pumping or fluid separation, including the recovery of viscous hydrocarbon products. The inlet area fluidly penetrates through a portion of the wall of the pump, and... | 10/14/2003 |
| 6481455 | Bubble trap for blood A bubble trap for an extracorporeal blood handling or other fluid handling system has a chamber (10) constructed from a top section (20) and bottom section (30). There is a fluid inlet (50), gas vent port (70) for purging gas that has separated from the f... | 11/19/2002 |
| 6453925 | Solution feeding apparatus and solution feeding method The invention is directed to a solution feeding apparatus and a solution feeding method that are capable of feeding solution from a container until the container is completely empty while maintaining a precise feeding rate to the end of the feeding proces... | 09/24/2002 |
| 6209567 | Foam trap for beer or other gas propelled liquid dispensing systems A foam trap or FOB for a gas propelled or mechanically pumped liquid dispensing system, having an upper ball stopper valve seat and gas vent port at the top and a lower ball stopper valve seat and liquid outlet port at the bottom, with two floating ball s... | 04/03/2001 |
| 6164308 | System and method for handling multiphase flow A method and device for transferring a multiphase flow to a predetermined location through a pipe. The multiphase flow is comprised of at least a liquid phase and a gas phase. The multiphase flow is provided to a flow divider that diverts a gas portion fr... | 12/26/2000 |
| 5524665 | Level control system for gas-liquid separators A gas-liquid separator system having a control system for controlling and maintaining a "normal" liquid level in the separator vessel. The system is capable of operating without the need for external power (e.g. electric, etc.) or the need for process gas... | 06/11/1996 |
| 5422003 | Gas-liquid separation flow rate regulator in sewage disposal tank This invention is directed to a gas/liquid separation flow rate regulator, which effectively carries out gas/liquid separation by preventing an uncontrolled flow of sewage and facilitates control of liquid flow. To accomplish this objective, the outer she... | 06/06/1995 |
| 5377714 | Device and method for transferring a multiphase type effluent in a single pipe The present invention relates to a method for transferring a multiphase effluent whatever the value of its gas phase/liquid phase volumetric ratio GLR may be. The value of the GLR is determined by means of a measuring device D, before it reaches a separat... | 01/03/1995 |
| 5195587 | Vapor recovery system In an oilfield production system, a water driven jet pump is used to evacuate vapors from storage tanks to thereby recover the vapors and prevent emissions from passing to the atmosphere. The jet pump entrains the vapors in process water which is passed t... | 03/23/1993 |
| 4730634 | Method and apparatus for controlling production of fluids from a well Method and apparatus for controlling production of fluids from a well. A transfer vessel receives fluids produced from an oil and gas well which separate into liquid and gas phases in the vessel. A gas pipeline and a liquid pipeline are provided for trans... | 03/15/1988 |
| 4700870 | Movable fluid dispenser with air bubble detectors for controlling dispenser movement An apparatus for dispending a fluid free of included air bubbles, such as for example, an adhesive bead, includes sensing devices for detecting the presence of an included air bubble in the conduit leading from a source of the fluid to a discharge of a mo... | 10/20/1987 |
| 4625744 | Process and device for performing a series of hydrodynamic functions on a flow comprised of at least two phases A process for performing a series of hydrodynamic functions or operation on a flow of fluids comprised of at least two phases includes the following steps: separating the fluid phases that comprise the initial flow; reducing the turbulence of the flows of... | 12/02/1986 |
| 4223695 | Novel valve employing hydrophobic and hydrophilic membranes A novel valve employing hydrophobic and hydrophilic membranes and providing a combined air barrier and liquid sequencing valve. The novel valve is useful in gravitational flow systems and equipment sets for the sequential administration of medical liquids... | 09/23/1980 |
| 4039458 | Apparatus for separation by decantation A decantation separation apparatus in which the material to be separated flows upwardly through an annular weir, and overflows to a decantation zone defined between the weir and a surrounding jacket. The separated liquid is withdrawn from the bottom of th... | 08/02/1977 |
| 4015621 | Pressure control and fluid venting system for a pressurized container A system to maintain the pressure within a pressurized container within dgn limits and to vent undesirable fluids to the ambient atmosphere. A float floats near the top of the container on the surface of oil supplied to the container by a pressure compen... | 04/05/1977 |