Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 8123490 | Apparatus and method for controlling electric compressor There is provided an apparatus for controlling an electric compressor, which can actuate the electric compressor rapidly through a simpler and lower-cost configuration while achieving reduction in weight, cost, and assembling time of the electric compressor. In the ... | 02/28/2012 |
| 8011895 | No water / dead head detection pump protection algorithm A method and apparatus are provided for controlling the operation of a pump in a pumping system, featuring sensing a no water or dead head condition of the flow of a medium in the pumping system operating at a set point pressure; and dynamically reducing the set-poi... | 09/06/2011 |
| 7988425 | Pump and alarm control A pump and alarm control promotes water safety and prevents entrapment in swimming pools, spas, and water features, such as fountains and waterfalls. The pump and alarm control monitors the vacuum on the influent side of a pump for the pool, spa and/or water feature... | 08/02/2011 |
| 7922457 | System and method for controlling a variable speed compressor during stopping A compressor system operable to shutdown in response to a shutdown signal. The compressor system includes a compression device operable between a first speed and a second speed to produce a flow of compressed fluid at a pressure. A blowdown valve is movable between ... | 04/12/2011 |
| 7878765 | System and method for monitoring operation of a pump Systems and methods for monitoring operation of a pump, including verifying operation or actions of a pump, are disclosed. A baseline profile for one or more parameters of a pump may be established. An operating profile may then be created by recording one or more v... | 02/01/2011 |
| 7878766 | Pump and pump control circuit apparatus and method A method and apparatus for a pump and a pump control system. The apparatus includes pistons integrally formed in a diaphragm and coupled to the diaphragm by convolutes. The convolutes have a bottom surface angled with respect to a top surface of the pistons. The app... | 02/01/2011 |
| 7850431 | System and method for control of fluid pressure Embodiments of the present invention are related to a pumping system that accurately dispenses fluid using a multiple stage (“multi-stage”) pump. More particularly, embodiments of the present invention provide for control of a feed stage pump to regulate fluid p... | 12/14/2010 |
| 7717680 | Charging system A charging system used for supplying compressed air to a destination includes a compressor for generating the compressed air and a reservoir capable of being alternately discharged and recharged with the compressed air. A supply line fluidly connects the compressor,... | 05/18/2010 |
| 7704052 | Air compressor and method for controlling the same An air compressor includes: a tank portion for reserving compressed air used in a pneumatic tool; a compressed air generation portion for generating compressed air and supplying the compressed air to the tank portion; a drive portion including a motor for driving th... | 04/27/2010 |
| 7686590 | Vacuum control system A vacuum control system allows the degree of vacuum in a vacuum vessel to be kept constant while removing vaporized components degassed into the vacuum vessel through a gas permeation diaphragm by stably introducing a very small amount of air into a vacuum exhaust p... | 03/30/2010 |
| 7645124 | Estimation and control of a resonant plant prone to stick-slip behavior A method and apparatus are provided for estimating and/or precluding stick-slip, or other oscillatory or resonant behavior, through use of a virtual transducer, which precludes the need for having sensors located adjacent to a driven element of the system, or adjace... | 01/12/2010 |
| 7635253 | Digital pressure controller for pump assembly A digital pressure controller that utilizes a microprocessor provides for control of the speed of a fluid pump engine for the purpose of maintaining specified pressures at both the inlet and outlet of the pump. Based upon pressure sensor output, and computations bas... | 12/22/2009 |
| 7556478 | Compressor control apparatus A control device is provided for use with a pneumatic pump for generating output pressure, a pressure sensor for indicating the level of the output pressure, and an input device for receiving a target pressure level input by a user. The control device is configured ... | 07/07/2009 |
| 7476088 | Air compressor A control circuit portion in an air compressor finds the rate of decrease of pressure inside a tank portion when a motor is at rest relative to the time based on a detection signal from a pressure sensor. Where the rate of decrease of pressure is greater than a give... | 01/13/2009 |
| 7476087 | Pump controller for precision pumping apparatus A pump controller and pump controlling method for dispensing a precise amount of low viscosity fluid are provided in which the problems of double dispenses and stuttered dispenses are avoided. In particular, the timing of the valves and motors in the pumping apparat... | 01/13/2009 |
| 7399165 | Pump unit with multiple operation modes A first pump of small capacity and a second pump of large capacity are connected directly with each other and are driven by a variable-speed motor. The rotational speed of the variable-speed motor is controlled by a control device. In a first mode, a first discharge... | 07/15/2008 |
| 7393185 | Fuel pump with automatic shutoff A pressure sensor subsystem measures the pressure within a fuel pump and outputs an under-pressure signal when the measured pressure is below a predetermined threshold pressure value. A temperature sensor subsystem measures the temperature within the fuel pump and o... | 07/01/2008 |
| RE40400 | Capacity modulated scroll machine A scroll-type machine is disclosed which is particularly well suited for use as a compressor in refrigeration and air conditioning systems and incorporates a unique arrangement for modulating the capacity thereof. In one group of embodiments the capacity of the scro... | 06/24/2008 |
| 7373946 | Vacuum tank assembly A vacuum tank assembly is provided for use on an RV or a boat and includes a two-piece vacuum tank. The two-piece vacuum tank includes a body and a removable top with a gasket located between the body and removable top. A dip tube is integrated into the removable to... | 05/20/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7350399 | Leakage detecting device for evaporating fuel processing apparatus A leakage detecting device is connected to an evaporating fuel processing apparatus to detect leakage of evaporating fuel in a ventilation apparatus that includes an electric pump, a fuel tank, and a filter. The electric pump includes a pump portion and a motor port... | 04/01/2008 |
| 7347301 | Lubricant supply system and operating method of multisystem lubrication screw compressor An oil refrigeration screw compressor being applied to a refrigeration system etc., in which the problem of strength reduction of a bearing material under high temperatures and that of lifetime reduction of the bearing material due to viscosity lowering of lubricant... | 03/25/2008 |
| 7338260 | System and method for controlling current provided to a stepping motor A system and method is disclosed for controlling the input electrical current to an infusion pump stepper motor based on predetermined torque requirements. The system can include a motor controller and a non-volatile memory containing expected load torque values thr... | 03/04/2008 |
| 7328626 | Apparatus for generating and conducting a fluid flow, and method of monitoring said apparatus The apparatus comprises a displacement pump with at least one flow vessel, with a pump drive, and with a support means for holding the flow vessel. Furthermore, the apparatus comprises a measuring arrangement responsive to the displacement motions performed by the f... | 02/12/2008 |
| 7326038 | Pressure switch mechanism and air compressor using the same mechanism An air compressor comprises a tank portion for reserving a compressed air, a compressed air generating portion for generating the compressed air to be supplied to the tank portion, a motor for driving the compressed air generating portion, and a pressure switch mech... | 02/05/2008 |
| 7320370 | Automatic downlink system A downlink system that includes at least one mud pump for pumping drilling fluid from a drilling fluid storage tank to a drilling system, a standpipe in fluid communication with the mud pump and in fluid communication with the drilling system, and a return line in f... | 01/22/2008 |
| 7316336 | Quantitative dosing of small amounts of liquids The invention relates to quantitative dosing of small amounts of liquids having a volume of microliter or nanoliter order. Such a dosing technique is useful for instance for productive serial dosing in applications of clinical chemistry. In dosing device of the inve... | 01/08/2008 |
| 7313497 | Valve monitoring method and arrangement A method and apparatus or arrangement, for monitoring the operating characteristics of valves, principally to monitor for failure of a valve. The method including measuring a pressure differential across a valve 1 and comparing the measured differential with ... | 12/25/2007 |
| 7296978 | Compressed air system utilizing a motor slip parameter A compressed air system and method of operating the system wherein the slip between the compressor motor and its powering alternator is used as an indication of whether the compressor is running in a loaded or unloaded mode. A slip parameter such as % Slip is determ... | 11/20/2007 |
| 7290993 | Piezoelectric devices and methods and circuits for driving same A drive circuit (18) produces a drive signal having a waveform of a predetermined waveform shape for a device (10) having a piezoelectric actuator (14). The drive circuit (14) includes a memory (140) which stores waveform shape dat... | 11/06/2007 |
| 7287965 | Piezoelectric devices and methods and circuits for driving same A drive circuit (18) produces a drive signal for a pump (10) having a piezoelectric actuator (14), with the piezoelectric actuator (14) forming a part of the drive circuit (18) and serving to shape a waveform of the drive signal. T... | 10/30/2007 |
| 7281903 | Device for varying the pressure of the fluid delivered by a jet washer Device for varying the delivery pressure of a jet washer comprising a positive-displacement pump operated by a single-phase electric motor powered by alternating current and having a delivery nozzle of predetermined cross-section, and electronic means for controllin... | 10/16/2007 |
| 7273359 | Peristaltic irrigation pump system A peristaltic pump tubing system for use with a peristaltic pump roller assembly in a surgical procedure. The system comprises a uniquely shaped disposable cassette for retaining tubing to be used during the procedure and a uniquely shaped cassette receiving station... | 09/25/2007 |
| 7263978 | Dual pressure on demand automotive fuel pump An internal combustion engine (14) has an associated controller (18) controlling operation of the engine. A fuel pump (10) delivers fuel to the engine at more than one pressure (300 kPa, 800 kPa). The fuel pump includes a fuel inlet (34) ... | 09/04/2007 |
| 7260499 | Fuel delivery system with enhanced functionality and diagnostic capability A control system for a fuel delivery system provides enhanced functionality and diagnostic capabilities relative to known systems. In accordance with one aspect of the invention, enhanced functionality and diagnostic capability is provided by integrating the pump co... | 08/21/2007 |
| 7255133 | Fluid pressure system including free floating bladder A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction o... | 08/14/2007 |
| 7252009 | System and method for pressure measurement A system and method for pressure measurement may include the ability to readily produce a pressure measurement system. In one general aspect, a process for producing a pressure measurement system includes providing an assembly including a stem, a pressure detector, ... | 08/07/2007 |
| 7234922 | Pump pressure limiting engine speed control and related engine and sprinkler system A sprinkler system for building includes an internal combustion engine which operates a water pump. The water pump in turn forces water through pipes to sprinkler heads. The engine is at least in part controlled by a throttle control mechanism which is responsive to... | 06/26/2007 |
| 7234310 | Very low temperature refrigeration system having a scroll compressor with liquid injection Disclosed is a very low temperature or cryogenic refrigeration system with a scroll compressor and utilizing a mixed refrigerant that decreases refrigerant discharge temperature by refrigerant injection into the compressor. ... | 06/26/2007 |
| 7225959 | Portable, battery-powered air compressor for a pneumatic tool system A portable pneumatic fastening tool has an onboard compressor assembly to alleviate the need for an external air compressor. The onboard compressor assembly includes a motor and a compressor mounted to the tool body. The motor can be powered by a detachable battery ... | 06/05/2007 |
