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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 |
| 7295025 | Probe station with low noise characteristics A cable includes an inner conductor, an inner dielectric, and a guard conductor, where the inner dielectric is between the inner conductor and the guard conductor. The cable also includes an outer dielectric, and a shield conductor, where the outer dielectric is bet... | 11/13/2007 |
| 7275415 | Particulate-based flow sensor A fluid conveyance apparatus having more than one particulate matter sensing probe situated at two or more locations on the apparatus. Signals from the probes from at least two locations may indicate particulate matter flowing within a fluid through the conveyance a... | 10/02/2007 |
| 7259848 | Process measuring point A process for measuring a point comprising at least one spectrometer and a measuring transducer connected thereto for picking up, processing and forwarding measuring signals from the spectrometer, the spectrometer being arranged in an armature for introduction into ... | 08/21/2007 |
| 7106233 | Integrated galvanomagnetic sensor array system Galvanomagnetic sensor array system and method for providing data interface to a basic sensor array are provided. The sensor system includes an array of galvanomagnetic elements, and a processor coupled to receive each output signal from the array of galvanomagnetic... | 09/12/2006 |
| 7100423 | Method and apparatus for monitoring particles in a flowing gas A method and apparatus for monitoring particulate matter in a gas sample and the air quality associated therewith is provided. ... | 09/05/2006 |
| 7063731 | Method and apparatus for detecting particles in a gas flow The application discloses several methods of detecting particles moving in a gas flow, a detection means (70), a method of improving the linearity of the signal produced by a triboelectric particle detector, a method to test a signal path of an emission monit... | 06/20/2006 |
| 6927575 | Surface coil decoupling means for MRI systems A system and method for decoupling coils in a medical imaging system are provided. The coil system includes a first coil of a medical imaging system, a second coil of the medical imaging system, and a balun device connected to the first and second coils. The balun d... | 08/09/2005 |
| 6888356 | Method of detecting plastics articles, and a detector device The method of detecting plastics material, in particular for a postal sorting installation through which articles pass, is intended to distinguish automatically between articles having an outside surface made of plastics material and articles having an outside surfa... | 05/03/2005 |
| 6650959 | Method and apparatus for the detection of foreign materials in moving textile materials A method and an apparatus for detecting foreign fibers in a moving textile material, in particular in moving threads, yarns or slivers, include providing a probe for picking up triboelectric signals from the moving textile material and comparing the outpu... | 11/18/2003 |
| 6518765 | Multi-sensor electrometer An array of triboelectric sensors is used for testing the electrostatic properties of a remote environment. The sensors may be mounted in the heel of a robot arm scoop. To determine the triboelectric properties of a planet surface, the robot arm scoop may... | 02/11/2003 |
| 6489775 | Particle detectors A particle detector for detecting particles flowing in a duct has a first triboelectric probe (5) for detecting the particles and a second triboelectric probe (3) for detecting a signal generated by contaminants on the particle detector. The presence of s... | 12/03/2002 |
| 6367332 | Triboelectric sensor and methods for manufacturing Triboelectric sensors which generate electrical signals in response to mechanical disturbances creating relative motion of conducting and dielectric components of the sensor are fabricated from thin metal foil which is plastic-coated on one side and which... | 04/09/2002 |
| 6192740 | Method and apparatus for detecting particles in a flow An apparatus for detecting particles in a flow comprises a probe 1 positioned so that it projects into the flow and is charged triboelectrically by the particles in the flow. An electric circuit is coupled to the probe 1 and includes evaluating means for ... | 02/27/2001 |
| 6144208 | Method and apparatus to identify asbestos and aramid A method for identifying and/or differentiating between asbestos materials and aramid materials comprises the steps of rubbing an area of a surface of a material (44) to be identified, with an acrylic reference material (28), measuring the polarity of the... | 11/07/2000 |
| 5644241 | Measurement of solid particle concentration in a fluid stream responsive to magnitude and rate of change of a triboelectric probe output signal Apparatus for measuring concentration of solid particles in a fluid stream that includes a probe for disposition in the fluid stream to provide an electrical probe signal as a triboelectric function of concentration of solid particles in the fluid stream.... | 07/01/1997 |
| 5608326 | Plastics identification Triboelectricity, that is the electrostatic charging of materials by rubbing them against one another, is used to identify particular plastics materials which produce a characteristic charge polarity when rubbed against another known material. An apparatu... | 03/04/1997 |
| 5591895 | Detecting particles in a gas flow In a method for detecting particles in a gas flow, a probe 8 is charged triboelectrically by particles 10 in the flow and the quantities of electrical charges transferred to the probe are evaluated to provide an indication of the particle flow in the gas ... | 01/07/1997 |
| 5585730 | Apparatus for measuring surface charge on a sheet or web The present invention is a device for measuring the electric surface charge density on each surface of a sheet. The sheet can either be moving or non-moving. If the sheet is non-moving a pliers-like device having a pair of electrodes aligned opposite with... | 12/17/1996 |
| 5585734 | Method for determining the resistance and carrier profile of a semiconductor element using a scanning proximity microscope A method for measuring the resistance or conductivity between two or more conductors which are placed against a semiconductor element, the conductors are placed either in contact with the top surface or one conductor is placed in contact with the top surf... | 12/17/1996 |
| 5563516 | Apparatus for sensing and measuring flow of dry particulate material An improved apparatus for sensing and measuring the flow of dry particulate materials including a sensing device (20C) connected to a remote measuring device by a coaxial cable (25). The sensing device (20C) has a probe (24) defining an electrode which ma... | 10/08/1996 |
| 5541518 | Apparatus for sensing and measuring flow of dry particulate material An improved apparatus for sensing and measuring the flow of dry particulate materials including a sensing device (20C) connected to a remote measuring device by a coaxial cable (25). The sensing device (20C) has a probe (24) defining an electrode which ma... | 07/30/1996 |
| 5539592 | System and method for monitoring friction between head and disk to predict head disk interaction failure in direct access storage devices A system for predicting the failure of a storage unit, such as a disk drive. In a most general sense, the inventive system includes a first mechanism (20, 22, 24) for moving an element (16) over a surface (12) which is moving relative to the element (16).... | 07/23/1996 |
| 5455514 | Apparatus and method for measuring polar charge on a sheet or moving web The present invention is a device for measuring the electric surface charge density on each surface of a sheet. The sheet can either be moving or non-moving. If the sheet is non-moving a pliers-like device having a pair of electrodes aligned opposite with... | 10/03/1995 |
| 5448172 | Triboelectric instrument with DC drift compensation A microprocessor (48) controlled triboelectric instrument with probe fouling detection, zero offset adjustments and temperature compensation. The system programmability provides for enhanced operator control and operator monitoring wherein the system may ... | 09/05/1995 |
| 5341103 | Apparatus for simultaneously generating and measuring a triboelectric charge Apparatus for simultaneously generating and measuring a triboelectric charge generated on a strip of flexible sample material includes a stationary rod of insulating material, driving motor for the sample material adapted to move the sample material in fr... | 08/23/1994 |
| 5287061 | On line triboelectric probe contamination detector An improved input circuit (9) for accepting a signal from a triboelectric probe (2). The circuitry provides gain, zero and probe contamination information which allows verification of said information without taking the probe and instrument off-line.... | 02/15/1994 |
| 5168412 | Surface interference detector Method and device for detecting interferences between surfaces of cooperating elements, including detecting the impact energy generated by an interference between a first surface and a surface protrusion of a second surface, and detecting a protrusion of ... | 12/01/1992 |
| 5095275 | Long term particle monitoring Monitoring apparatus (10) of particles in a gas stream comprising a probe (12) and circuit (14) for detecting electrical activity of the probe and an actuator (20) for insertion and retraction of the probe into and out of the stream, the circuit providing... | 03/10/1992 |
| 5066918 | Apparatus and method for measuring lateral charge distribution on a moving web Apparatus for measuring lateral charge distribution on a moving web includes a cylindrical roller having at least a pair of charge measuring segments on the cylinder surface which are electrically isolated from each other and aligned end-to-end in the dir... | 11/19/1991 |
| 5054325 | Flow measurement by collision characterization Particle analysis apparatus (10) in combination with a triboelectric probe (P) and including means (18, 20, 22, 24, 26) to analyze individual particle collisions with the probe as a useful measure of flow conditions--of a fluid with suspended solid partic... | 10/08/1991 |
| 5038625 | Tribological head-disk interface testing system A tribological head-disk interface testing system for testing commercial head-disk assemblies in an accelerated fashion to determine wear life, the system comprising an interface stress device disposed on a disk with a wear tester, the interface stress de... | 08/13/1991 |
| 5022274 | High temperature particle velocity meter and associated method The high temperature particle velocity meter is comprised of a pair of spaced apart conducting portions having disposed on each of their upstream edges a first and second non-conducting portion. The bombardment of the particles on the conducting and non-c... | 06/11/1991 |
| 4983923 | Frictional electrostatic voltage measuring equipment Frictional electrostatic voltage measuring equipment for measuring the frictional electrostatic voltage characteristics and the discharge characteristics of a sheet-form sample such as textile and film, the sheet-form sample being held by a sample plate i... | 01/08/1991 |
| 4954772 | Test method of an electrostatic breakdown of a semiconductor device and an apparatus therefor In a test method of an electrostatic breakdown of a semiconductor device in accordance with the present invention, a plurality of semiconductor devices are disposed at random on a member which has been electrostatically charged with a predetermined voltag... | 09/04/1990 |
| 4947468 | Bypass tandem chamber charge density monitor A bypass conduit is connected to a primary conduit and has tandem reservoirs formed therein. Continuous measurements are taken from the respective reservoirs of the electrical current generated by the relaxing fluid therein and flowing to ground. These re... | 08/07/1990 |
| 4935697 | Method and apparatus for detecting a projectiles flight path by sending a magnetic field produced by movement of frictionally imparted electrical change on the projectile A method and an apparatus for measuring a flight path parameter of a projectile (7) or parts thereof during flight possibly into the region of the target, with the electrical charge imparted to the projectile (7) or its part by friction with the air and/o... | 06/19/1990 |
| 4922205 | Apparatus for detecting contamination on probe surface An apparatus for detecting contamination on probe surface which comprises a sweep voltage generator for generating sweep voltage which is applied to a probe or probes in plasma, a probe current detection circuit for detecting probe current which flows in ... | 05/01/1990 |
| 4904944 | Flow measuring apparatus with analog, essentially linear output Flow measuring apparatus comprising a probe (1) coupled via a coaxial cable (2) to control circuitry with a current to voltage convertor (10), absolute value circuit (12), auto zero switch and integration (11, 27) and voltage to current circuit (18) yield... | 02/27/1990 |
| 4888948 | Monitoring of foreign object ingestion in engines The invention described in this specification relates to apparatus for monitoring the intake of foreign bodies and objects into an engine, particularly a gas turbine engine whereby sensors are located at or near the engine intake for detecting any electro... | 12/26/1989 |
| 4885543 | Electrostatic discharge test apparatus Electrostatic discharge properties of materials are quantitatively measured and ranked. Samples (20) are rotated on a turntable (15) beneath selectable, co-available electrostatic chargers (30/40), one being a corona charging element (30) and the other a ... | 12/05/1989 |
