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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 |
| 8141573 | Microfluidic valve having free-floating member and method of fabrication Micro check valves having a free-floating member for controlling flow of fluid in microfluidic and biomedical applications and methods of fabrication. A micro check valve includes a valve seat, a valve cap that contacts the valve seat and an untethered floating memb... | 03/27/2012 |
| 8141572 | High pressure isolation valve system An isolation valve system includes a main body (32), an actuator body (34) and a sealing membrane (307) arranged at a high pressure portion (36) of the isolation valve system. The sealing membrane mechanically attaches the actuator body t... | 03/27/2012 |
| 7942160 | Valves and pumps for microfluidic systems and method for making microfluidic systems The present invention relates to microfluidic systems, including valves and pumps for microfluidic systems. The valves of the invention include check valves such as diaphragm valves and flap valves. Other valves of the invention include one-use valves. The pumps of ... | 05/17/2011 |
| 7766028 | Pressure regulator A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaph... | 08/03/2010 |
| 7418973 | Device to reduce noise in pressure regulators A pressure regulator comprising a body portion having an inlet port, an outlet port, and a flow passage positioned therebetween is provided. A valve member and a valve seat are positioned in the flow passage. A spring is coupled to the valve member to urge the valve... | 09/02/2008 |
| 7410608 | Methods for manufacturing a diaphragm for an air admittance valve In some embodiments, a process for manufacturing a diaphragm for an air admittance valve includes disposing a first center disk into a first cavity of a first mold, the first center disk includes a hollow stem. A material is provided into the first mold, through the... | 08/12/2008 |
| 7392819 | Method of setting the ball travel of a valve-lash-adjusting element The invention relates to a method of setting the ball travel of a valve-closing body, designed as valve ball, of a control valve of a hydraulic valve-lash-adjusting element which has a plunger with a plunger head and a central bore, a valve seat being provided at th... | 07/01/2008 |
| 7337796 | Safety relief valve having a low blow-down value and spring therefore A safety relief valve is provided that comprises a body comprising a chamber therein and an inlet and an outlet, the inlet comprising an inlet valve seat; a disk member closeable on the inlet valve seat; and a mechanism in the body biasing the disk member to rest on... | 03/04/2008 |
| 7287739 | Fast closing well choke A well choke has a quick closure device quickly moving the choke element to a closed position. The closure device mounts between an actuator and a choke. The actuator has a stepper motor and gear train for incrementally moving an actuator rod and a choke element lin... | 10/30/2007 |
| 7278442 | Vented port-cap for fire hydrant The vented port-cap includes a check-valve, which admits air into the barrel of the hydrant when the pressure inside is lower than the pressure outside. After an inspection of the hydrant, the hydrant can be left to drain by itself, even though the port-cap has been... | 10/09/2007 |
| 7210669 | Deformable fastener A deformable fastener is provided. The fastener includes a first member having a cavity and a second member sized to be rotatably attached within the cavity. The fastener further includes a protrusion disposed on either the first or second member for locking engagem... | 05/01/2007 |
| 7207352 | Bushing for thermally independent bypass air metering valve A bypass air metering valve is provided with a stationary case flange having a plurality of slots, a bushing positioned within each of the slots, and a metering ring positioned so as to ride on a surface of each respective bushing. Each bushing creates a gap between... | 04/24/2007 |
| 7182443 | Ink delivery system An ink delivery system comprises a first container. A second container, at least a portion of which is flexible, contains a supply of ink to be supplied to a print head of a printer. The second container is received within the first container and the second containe... | 02/27/2007 |
| 7128088 | Backflow preventer A backflow assembly including a housing with a passage having at least one check valve positioned therein to permit fluid flow in one direction while preventing fluid flow in the reverse direction. The check valve includes a valve head connected to a stem having an ... | 10/31/2006 |
| 7121522 | Device for the regulation of flow applied to flow valves working under pressure differential A device for regulating flow comprises a main valve operating under differential pressure wherein the main valve has a main flow inlet and a main flow outlet. The main flow inlet is equipped with a valve seat over which a main shutter is adjusted in a perpendicular ... | 10/17/2006 |
| 7117880 | Apparatus and method of changing printed circuit boards in a fuel vapor pressure management apparatus An apparatus and a method for managing fuel vapor pressure in a fuel system that supplies fuel to an internal combustion engine. The fuel vapor pressure management apparatus performs leak detection on a headspace of the fuel system, performs excess negative pressure... | 10/10/2006 |
| 7044150 | Combination vent/check valve assembly A bidirectional valve comprising a flexible member with an aperture formed therein. The flexible member reacts to differential pressure thereacross by deforming, thereby causing the inside surfaces of the aperture to separate and create a vent path. The bidirectiona... | 05/16/2006 |
| 7040338 | Microfabricated elastomeric valve and pump systems A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the fir... | 05/09/2006 |
| 7037303 | Urinary flow control valve A flow control valve (22) such as for a catheter (10) allows discharge of urine from a bladder (12) by manual actuation. The valve (22) may be a double-duckbill valve (22) with a single slit (62) at one apex (60a | 05/02/2006 |
| 6964304 | Technique for maintaining pressure integrity in a submersible system A technique for maintaining pressure integrity within a submersible system. The system utilizes a pressure housing with an internal component, such as a valve. The internal component is actuated by an external actuator via an actuator stem. A seal region is position... | 11/15/2005 |
| 6886578 | Valve cartridge with multiple part actuation means A device that can be applied to cartridges for water equipment, intended to receive a rotary operating member (9) for the purpose of promoting the structural unification of the largest possible number of parts making up the cartridges, where the rotary fittin... | 05/03/2005 |
| 6837442 | Expansion valve An expansion valve 1 comprises a square-column-shaped valve body 10, and a spherical valve means 30 housed within a valve chamber 20 opposing against a valve seat 22. A working shaft 50 coming into contact with said valves m... | 01/04/2005 |
| 6834663 | Small scale actuators and methods for their formation and use An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second region. An actuator is disposed in the actuator channel and is movable wh... | 12/28/2004 |
| 6810862 | Fuel tank vapor relief valve and method of making same A diaphragm operated pressure responsive valve has its inlet connected to a fuel tank vapor line and the valving chamber openly connected to the storage canister and to the engine air intake manifold vapor purge control valve. The diaphragm is operable to vary the s... | 11/02/2004 |
| 6802331 | Particle-based check valve A check valve for a fluidic system includes a fluidic conduit having an inlet with a first particle barrier, an outlet with a second particle barrier and a fluid chamber between the inlet and the outlet; and at least one particle disposed in the fluid chamber, the p... | 10/12/2004 |
| 6722385 | Hydraulic valve repair kit and method of use A hydraulic spool valve repair kit comprising a cylindrical valve cap and a replacement spring retainer plate and a method of use of these components for increasing the service longevity of such a hydraulic spool valve within the valve body of an automatic transmiss... | 04/20/2004 |
| 6708712 | Pressure regulator utilizing a disc spring A pressure regulator having a disc spring. The pressure regulator comprises a valve having a movable device that is positioned to control fluid flow through the pressure regulator. Downstream fluid pressure produces a first force acting on the movable device to clos... | 03/23/2004 |
| 6688321 | Method and apparatus for a flow regulator having an integral hinge A device for regulating the flow of gas from an environment. The device includes a shell forming a path through which fluid flows. A fixed grate is disposed in the path so that as fluid flows in the path the fixed grate does not move. A movable grate asse... | 02/10/2004 |
| 6688322 | Apparatus and method for sealing a fuel component in a fuel communication passage A fuel component assembly having a fuel component disposed between a base and a cover, which prevent fluid communication to an exterior thereof. The fuel component defines at least one aperture, the base supports the fuel component and defines a passage i... | 02/10/2004 |
| 6684897 | Valve actuator and method A subsea actuator and method is disclosed that includes all moving components mounted in a compact, concentric configuration. The subsea actuator is highly reliable and will operate at depth even with zero valve body cavity pressure. A preferably cup-shap... | 02/03/2004 |
| 6672325 | Small scale actuators and methods for their formation and use An actuator assembly and method for making and using an actuator assembly. In one embodiment, the assembly includes an actuator body having an actuator channel with a first region and a second region. An actuator is disposed in the actuator channel and is... | 01/06/2004 |
| 6609533 | Valve actuator and method A subsea actuator and method is disclosed that includes all moving components mounted in a compact, concentric configuration. The subsea actuator is highly reliable and will operate at depth even with zero valve body cavity pressure. A preferably cup-shap... | 08/26/2003 |
| 6502598 | Backflow prevention assembly A backflow prevention assembly has a unitary housing with a passage therethrough, two threaded regions formed in an inner surface of the unitary housing, and two valve assemblies positioned in the passage to prevent fluid flow in a direction. Each valve a... | 01/07/2003 |
| 6349736 | Backflow preventer apparatus and method with integration of shut-off valves Backflow prevention is provided in connection with a device having one or more shut-off valves integrated with a double-check-valve backflow prevention device and/or housing. Preferably, a single housing encompasses two backflow preventer check valves, an... | 02/26/2002 |
| 6318397 | Side port floor drain An improved floor drain for buildings, basements, exterior paved areas, and the like. The invention provides floor drain assemblies and floor drains providing improved drainage performance, particularly where drainage is an irregular occurrence, and havin... | 11/20/2001 |
| 6270055 | Hydraulic shut-off valve In a hose coupling with a coupling sleeve and a coupling nipple and a valve insert (9) provided therein, the valve spring, the holding element and the valve seat of the valve insert are designed as a one-piece component, and the valve spring (11) has a ca... | 08/07/2001 |
| 6227825 | Two part reed valve and method of manufacturing Improved membrane valve for transferring fluids or gases in hermetic or semi-hermetic compressors, including a method and system for manufacturing a membrane valve and a membrane valve with applications for use in several motors, particularly in hermetic ... | 05/08/2001 |
| 6192912 | Low profile pneumatically activated valve assembly A low profile pneumatically actuated valve assembly including a pneumatic actuator, a bonnet, and an elongated hollow member disposed within the valve actuator, the member having a threaded portion extending from within the actuator, the threaded portion ... | 02/27/2001 |
| 6044859 | Valve apparatus and method A valve includes an inlet and outlet housing, a flexible one-way valve, and a collar. The flexible valve is locked between the housings. The collar is attached to the inlet housing and extends into the flexible valve. As fluid flows through the valve, the... | 04/04/2000 |
| 6029685 | Cage assembly for ball check valves An improved cage assembly for ball check valves includes an insert comprising a unitary structure formed from STELLITE.RTM. having a passageway therethrough. A ball is positioned in the passageway of the insert for movement between two positions one of wh... | 02/29/2000 |
