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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7921867 | Elbow plug external sleeve valve An elbow fluid flow valve exhibiting reduced flow loss and including a body having a specified shape and size and defining a short radius associated with an elbow shaped fluid passageway characterized by a first fluid flow inlet and a second fluid flow outlet. A cov... | 04/12/2011 |
| 7314059 | Systems and methods for controlling pressure of fluids Systems and methods for using a dual-path fluid routing system that uses a flow restriction device to enhance temperature and pressure control of fluid are provided. Systems and methods for using a setpoint pressure control system to accurately control the setpoint ... | 01/01/2008 |
| 7263900 | Volumetric flow metering device A metering device for producing a precisely metered volumetric flow is provided. The metering device comprises two displacement devices that are operated in phase opposition. In this case, the shifting speeds of the volumes of the displacement devices are adjusted s... | 09/04/2007 |
| 7168444 | Flow through pressure regulator with pinch valve A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a d... | 01/30/2007 |
| 7108666 | Method and apparatus for performing a forced expiratory maneuver in an infant Disclosed is a method and device for performing forced expiratory maneuver in an infant to assess the infant's pulmonary function. Under this method, the infant's lungs are synchronously inflated to super-atmospheric levels synchronous with the infant's natural tida... | 09/19/2006 |
| 7077376 | Water saver valve The present invention relates to a valve designed to be in series with a toilet water supply line and the inlet of a toilet tank so that water which is flowing into the tank must flow through the valve. The valve includes a shutoff spool that is actuated by an inten... | 07/18/2006 |
| 6926007 | Medical device for overcoming airway obstruction A medical device for overcoming airway obstruction featuring a flat rectangular support base with a support frame attached by a pivoting means. A T-band, so named for its shape and the positioning of its three straps, attaches to the support frame when the T-band is... | 08/09/2005 |
| 6504474 | Method and apparatus for detecting a restricted or bypassed transmission oil filter A method and apparatus for detecting a restricted or bypassed transmission oil filter by providing pressure transducers on both sides of the oil filter whereby the pressure differential will indicate the extent of filter restriction. A first alarm is acti... | 01/07/2003 |
| 6422009 | Pump capacity control device and valve device A fixed throttle 12 is provided in a delivery line 11a of a fixed pump 11 driven by an engine 9 for rotation together with a hydraulic pump 1, and a differential pressure detecting valve 31 is provided in association with the fixed throttle 12 to detect a... | 07/23/2002 |
| 6333689 | Apparatus and method for water flow fire alarm An apparatus and method for a flow-based fire alarm. A bypass system is provided to allow sufficient water flow where a pressure drop, particularly in a residential or multi-purpose piping system such as a water softener is encountered, by providing an al... | 12/25/2001 |
| 5979480 | Semiconductor production device, method of adjusting its internal pressure and method of processing an object of processing An object is to obtain a semiconductor production device, a method of adjusting its internal pressure and a method of processing an object of processing which can prevent adhesion of particles to an object of processing. The amount of gas in a cassette ch... | 11/09/1999 |
| 5732729 | Safety valve A valve includes two outlet ports and two inlets communicating with a chamber and includes two valve seats. A membrane is secured in the chamber. Two plugs are slidably engaged in the inlets for engaging with the valve seats and each includes one end enga... | 03/31/1998 |
| 5727587 | Mixer control valve A mixer control valve comprises a base, a cover covering the base, and a washer, a cylinder and a control shaft disposed between the base and the cover. The mixer control valve couples with a water volume control valve. The water volume control valve has ... | 03/17/1998 |
| 5433237 | Dedrooped bypass valve A differential pressure regulator connected in a fluid system including a bypass line and including a valve body with a high pressure inlet and a compensation inlet connected to the high pressure side of the system, a low pressure inlet, and a bypass outl... | 07/18/1995 |
| 5277215 | Method for supplying and discharging gas to and from semiconductor manufacturing equipment and system for executing the same A plurality of airtight chambers are connected through blocking means, which can communicate or shut off the chambers, and at least one of the airtight chambers is used as a processing chamber. One of the adjacent airtight chambers is replaced by a replac... | 01/11/1994 |
| 5261452 | Critical orifice dilution system and method An apparatus and method are provided for preparing low concentration gas phase calibration standards. The flows of a standard mixture of impurity in a gas and a dilution gas are controlled by regulating the pressure upstream of respective calibrated orifi... | 11/16/1993 |
| 5261437 | Method and apparatus for monitoring and analyzing recirculation control system performance A method and apparatus for monitoring and analyzing the performance of a recirculation control system are disclosed. According to the invention, the pressure of the liquid passing through the control system is measured directly by pressure and differentia... | 11/16/1993 |
| 5259474 | Steering force control apparatus for power steering system A hydraulic pressure acting in a hydraulic reaction chamber of a power steering system is controlled. A spool valve is formed with portions having a greater and a smaller diameter, which portions are partly situated in an annular groove formed in a valve ... | 11/09/1993 |
| 5244358 | Load sensed variable output gear pump A load sensed variable output gear pump having adjustable high pressure compensation, tuneable response, low unloading pressure and variable pressure drop adjustability. It comprises a unitary housing enclosing a pump which pumps through a main inlet-outl... | 09/14/1993 |
| 4955350 | Fuel injection A pressure regulator has a spool valve positioned by a linear motor to control flow through a spill passage from a fuel inlet to a fuel outlet and thereby control the fuel pressure in the inlet as a function of the current in the linear motor, a piston su... | 09/11/1990 |
| 4770094 | Control valve for regulating a pressure ratio between two pressure systems A control valve for regulating and maintaining the pressure ratio between two pressures (p1 and p2) associated, respectively, with two separate pressure systems at a constant value. In particular, the pressure (p2), prevai... | 09/13/1988 |
| 4530371 | Control of fluid pressure circuits A control system for controlling the pressure and pressure balance in two separate fluid pressure circuits. A valve being employed which comprises a balance piston and a regulating piston. Each of the pistons controls a connection of the first and second ... | 07/23/1985 |
| 4431019 | Fluid flow control device A fluid flow control device comprises first, second, and third fluid conduits. The first and second conduits are adapted to communicate with separate sources of pressurized fluid. The third conduit includes an inlet portion in direct flow communication wi... | 02/14/1984 |
| 4321939 | Multi-liquid flow proportioning device This invention concerns a multi-liquid flow proportioning device comprising a vessel adapted to contain a first liquid, a container within said vessel adapted to hold a second liquid separate from said first liquid, separate inlet and outlet means respect... | 03/30/1982 |
| 4319628 | Two liquid heat exchange system and safety valve to prevent contamination A two liquid heat exchange system, and a safety valve to prevent contamination of one liquid (first liquid) by the other. In systems such as hydronic solar systems, it is customary for a first liquid to be heated and run through a heat exchanger where its... | 03/16/1982 |
| 4232699 | Hydro-mechanical failure detection and latching apparatus A failure detection apparatus useful with a hydraulic system for maintaining fluid pressure signals present in the system to detect predetermined disparity therebetween. The apparatus includes a movable sleeve mounted within a housing and defining a centr... | 11/11/1980 |
| 4184505 | Fuel flow rate measuring device A fuel flow rate measuring device comprising a control rod axially movable in proportion to the rate of flow of air flowing through a suction pipe, a ball disposed in a taper bore and adapted to be moved in the taper bore by the control rod, the taper bor... | 01/22/1980 |
| 4078475 | Flow regulator A flow regulation device includes a main regulator connected to the exhaust pipe and delivery pipe of a fluid motor having a valve controlled by the feed pressure to the motor for varying flow permitted from the motor; flow from the valving means passes t... | 03/14/1978 |
| 4071039 | Fluid pressure controlled valve assembly A valve assembly of the type, wherein a first end of a movable plunger is adapted to collapse or compress a first tube length against an opposite tube backing or support structure in order to regulate or vary the flow conditions of a fluid in this first t... | 01/31/1978 |
| 4027923 | Pressure reducer device A pressure reducer device, particularly for hydraulic brake systems in motor vehicles comprises a housing having a chamber, a differential area piston movable within the chamber having a passage through which pressure is transmitted from a high pressure c... | 06/07/1977 |
| 4019525 | Tractor protection valve A tractor protection valve for use in the air brake system of a tractor-trailer vehicle combination to protect and maintain the braking system of the tractor includes a housing having tractor supply and control ports, trailer supply and control ports, and... | 04/26/1977 |
| 3973578 | Tandem control valve A pressure control valve for a braking system having two separate pressure circuits comprises two valves for connection in the respective circuits. Each valve has a valve closure member, the members being axially aligned and coupled together for movement ... | 08/10/1976 |
| 3961640 | Dental handpiece control A dental handpiece control in which a single housing for controlling the flow of air and water to a dental handpiece is combined with a foot pedal. In the housing is a pressure regulator directly operated by the foot pedal and a water valve controlled by ... | 06/08/1976 |
| 3938369 | Arrangement for controlling the viscosity of a fluid A constant output pump delivers a portion of a fluid, the viscosity of which is to be controlled, into a measuring capillary tube to develop a pressure differential across the measuring capillary tube. Means are provided to sense the pressure differential... | 02/17/1976 |
