...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 |
| 8118056 | Mixing device with valve disks The invention relates to a mixing device for mixing substances with a valve control disk and a fixed valve seat disk having at least two groups of openings each of which consists of at least three through openings. A first opening is an inlet for a substance, a seco... | 02/21/2012 |
| 7487797 | 4 port fluid cartridge A control disk insert for a one lever mixer valve (20) contains two preferably, planar disks, whereof one fixed control disk (24) has at least one opening zone for hot water and at least one opening zone for cold water. The movable control disk (22 | 02/10/2009 |
| 7337869 | Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof A vehicle includes an integrated drive module coupled to an axle thereof. The module includes a hydraulic motor configured to provide motive power at an output shaft, and a differential for distributing the motive power to right and left portions of the axle. The hy... | 03/04/2008 |
| 7311882 | Capillary interconnect device A manifold for connecting external capillaries to the inlet and/or outlet ports of a microfluidic device for high pressure applications is provided. The fluid connector for coupling at least one fluid conduit to a corresponding port of a substrate that includes: (i)... | 12/25/2007 |
| 7270142 | Inflation device with automatic disconnect An apparatus that injects fluid into an inflatable device, dynamically monitors the pressure inside the device, and automatically terminates the inflation and disconnects from the inflatable device when the pressure inside the device reaches a predetermined value pr... | 09/18/2007 |
| 7190893 | Fluid heater with low porosity thermal mass A fluid heater apparatus and method of making same includes a low porosity material, thermally conductive mass. A heat source is disposed in the thermally conductive mass for imparting heat to the mass. Fluid in a flow path through the mass absorbs heat from the mas... | 03/13/2007 |
| 7169228 | Extrusion applicator having linear motion operability An applicator for application of a substance onto a material. The applicator has a housing, a valve and a nozzle. The applicator may also have a journal that is connected to the valve which together translate in a linear motion to provide shuttering functionality. T... | 01/30/2007 |
| 7152271 | Apparatus for adjusting a vacuum selector A vacuum selector is provided. The vacuum selector includes a housing having first and second faces, the first face including first and second openings, the second face including a primary opening that communicates with the first and second openings along a flow pat... | 12/26/2006 |
| 7051761 | Fill and bleed valve for liquid cooling system A fill and bleed valve for filling a liquid cooling system has a single axially movable plunger, slidable within a central block bore, from a normal operating position to a filling position that opens the cooling system to a supply of coolant. The filling operation ... | 05/30/2006 |
| 7037087 | Capacity control valve and control method therefor An object of the capacity control valve is to provide a constant, stable control of the pressure load without fluctuations. Also another object is to improve an energy efficiency of the drive torque of the rotary shaft by means of a control of the pressure load. In ... | 05/02/2006 |
| 7036521 | Air conserving slide valve A slide type valve (V) for regulating a gas generating system (10) that has at least a first and a second gas concentrating bed unit (12, 14) includes an outer body (120) with a slide face (106) having at least three open ports (130, 1... | 05/02/2006 |
| 6998727 | Methods of operating a parallel hybrid vehicle having an internal combustion engine and a secondary power source The invention is directed toward methods for operating a parallel hybrid vehicle in a manner that responds to the operator's demand for power output, while maximizing engine efficiency and minimizing disruptions in vehicle drivability. According to principles of the... | 02/14/2006 |
| 6973936 | Fluid injection system A fluid injection system controls the distribution of fluid from a supply line to a selected well at an adjustable rate. A fluid barrier divides a cylinder into first and second chambers. A multi-position valve comprises a first position for passing fluid from the s... | 12/13/2005 |
| 6966336 | Fluid injection microvalve A microvalve for extracting small volume samples into analytical devices, e.g., high pressure liquid chromatography (HPLC) column, includes: a first body having a first interior surface and two or more outlet ports at the first interior surface that are in fluid com... | 11/22/2005 |
| 6957655 | Apparatus for dosage control The invention is directed to a dose control apparatus for manipulating the dosage of one or more pharmaceutical solutions emanating from an implantable drug infusion pump. The dose control apparatus has a movable core that is held in a desired position by a magnet. ... | 10/25/2005 |
| 6952524 | Fluid heater temperature balancing apparatus A fluid heater apparatus supplies heat to wash fluid via a flow path in a thermally conductive body. A heat source is disposed in the thermally conductive body for imparting heat to the body. Fluid flowing through the thermally conductive body in a flow path envelop... | 10/04/2005 |
| 6925730 | Apparatus for removing paint A paint removal apparatus includes a canister partially filled with a pressurized coolant. The apparatus includes a housing having a body portion mounted atop the canister with a handle portion extending from the body portion. The handle includes an inlet port while... | 08/09/2005 |
| 6912357 | Fluid heater A fluid heater apparatus supplies heat to wash fluid via a continuous, labyrinthian flow path in a thermally conductive body. A heat source is disposed in the thermally conductive body for imparting heat to the body. Fluid flowing through the thermally conductive bo... | 06/28/2005 |
| 6857448 | Air bleed apparatus for a burner unit A control apparatus simultaneously controls flow rates of a first fluid and a second fluid. The apparatus comprises a control valve for controlling the flow rate of the first fluid and a bleed device for bleeding the second fluid. The control valve is operatively co... | 02/22/2005 |
| 6818068 | Conveyor for treating hollow bodies comprising an advanced pressure distribution circuit Aconveyer for treating hollow bodies, comprising several identical treatment stations (12, 13) that process at least one hollow body, whereby the respective treatment station for a given treatment stage communicates with a pressure source via distribution mea... | 11/16/2004 |
| 6647965 | Pump assembly and method A pump assembly and method for an internal combustion engine includes a high-pressure pump for pressurizing oil used to actuate fuel injectors or other devices, a hydraulic inlet throttle valve, a three-way valve for alternatively connecting the inlet thr... | 11/18/2003 |
| 6543480 | Laundry faucet valve and timer control A valve for controlling a flow of water to an appliance comprises a valve assembly having a pair of inlets for coupling to a water supply and a pair of outlets for supplying water to the appliance. A valve mechanism is coupled to the valve assembly to con... | 04/08/2003 |
| 6526974 | Pressure control in CPAP treatment or assisted respiration The pressure of breathable gas exiting a flow generator is controlled by adjusting the efficiency of the flow generator. In one embodiment, a baffle plate of a control element can restrict the open entry area of a motor driven turbine of the flow generato... | 03/04/2003 |
| 6412513 | Valve having an easily sealing configuration A valve includes a housing having a chamber and two inlets communicating with each other, two casings received in the chamber of the housing and each having a bottom orifice and an upper port and a side aperture communicating with each other. A valve seat... | 07/02/2002 |
| 6170524 | Fast valve and actuator A fast-acting valve includes a valve body and a spool slidably mounted within the valve body between first and second limit positions. Both the spool and the valve body have a flow passage which come into alignment with the valve spool at a position inter... | 01/09/2001 |
| 6152176 | Air valve structure for alternately aerated three-pipe style air bed An air valve structure for an alternately aerated three-pipe style air bed, being comprised of an upper rotation seat and a lower rotation seat, three air pipes on the air valve structure can be supplied with air through relative rotation between and by t... | 11/28/2000 |
| 6067864 | Multiport valve system through which sample gas continuously flows in selected and non selected ports A multiport valve system is disclosed in which sample gas continuously flows through all ports. More specifically, gas flowing to a specific port is selected for analysis, and gas continuously flows through the valve at this port during the analysis. In a... | 05/30/2000 |
| 5954092 | Pulsed flow generator There is provided a high frequency pulse generator having inlet ports for receiving a fluid mass flow rate and output ports that produce a pulse flow rate therefrom by being opened and closed by a chopper wheel. The duty cycle of the generator is controll... | 09/21/1999 |
| 5938098 | Servo valve A positive pressure operated servo apparatus for lateral alignment of a continuous web of paper, plastic, textiles and other materials which are being processed at windup, unwind, printing, coating, folding and slitting stations, or other intermediate poi... | 08/17/1999 |
| 5925023 | Multi stage type flow rate switching device A multi stage type flow rate switching device is provided which simplifies switching of flow paths and which rarely causes erroneous operation. The multi stage type flow rate switching device includes a liquid medicine flow inlet port 1 having branch path... | 07/20/1999 |
| 5839471 | Sealing member for a valve A valve includes a base having a chamber and two inlets communicating with the chamber, and a cover engaged on the base. The base includes a peripheral groove formed around the chamber for engaging with a sealing member and includes six notches communicat... | 11/24/1998 |
| 5595218 | Valve construction A solid valve spool is split in two, by cutting through its center land diameter. A drill rod spacer is machined to length and inserted between the spool pieces to establish a spool assembly having a precise land width. The spool pieces and spacer are bia... | 01/21/1997 |
| 5577637 | Cutting-off device for stock materials packed in can-like containers, more particularly filler materials and putties and hardener pastes Cutting-off device for viscous stock materials packed in can-like containers, more particularly filler materials and putties and hardener pastes. A device in the form of a disposable article for the simultaneous cutting-off of filler materials and hardene... | 11/26/1996 |
| 5571002 | Plunger pump system with shuttle valve A plunger pump system including a plunger pump, and a shuttle valve connected to the plunger pump having a valve body reciprocally fitted in a hollow portion formed in a valve casing to divide the hollow portion into a liquid supply side chamber and a liq... | 11/05/1996 |
| 5454698 | Plunger pump system with shuttle valve A plunger pump system including a plunger pump, and a shuttle valve connected to the plunger pump having a valve body reciprocally fitted in a hollow portion formed in a valve casing to divide the hollow portion into a liquid supply side chamber and a liq... | 10/03/1995 |
| 5437304 | Device for alternate admission of a liquid or a pressurized gas to one or more moulds used in plastics processing A device is provided that permits admission of air or water to one or more molds. It includes at least two three-way valves that move together between a position admitting and exhausting air, a position admitting and exhausting water, and a position block... | 08/01/1995 |
| 5398737 | Connecting mechanism The invention relates to a connecting mechanism for connecting a vessel (5) through the intermediary of a connecting element (3) to a liquid container (6) of an anaesthetic liquid vaporizing apparatus (1), the connecting element including two ducts (23, 2... | 03/21/1995 |
| 5360321 | Feeding reservoir for two-cylinders thick-matter pumps A feeding reservoir for a two-cylinder pump is provided for the pressurized delivery of thick matter. The feeding reservoir includes a material supply port, a front wall having two pump-side ports therein, and a back wall opposite the front wall having tw... | 11/01/1994 |
| 5288323 | Apparatus with a shunt system for processing printed circuit board substrates Apparatus for contacting a circuit board substrate with etching fluid or some other chemical includes a conveyor system comprised of upper and lower rotating disks for receiving and transporting the circuit board substrate while the substrate is contacted... | 02/22/1994 |
| 5236015 | Position-controlled proportional directional valve A position controlled proportional directional control valve has a main control piston for controlling flow between passages to a pump, a tank, and to passages which may be connected to an operative device, such as a hydraulic motor. The main control pist... | 08/17/1993 |