Celebrity Inventors
Penn Jillette of Penn and Teller fame has patented a "Hydro-Therapeutic Stimulator", which uses a hot tub for stimulation.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7355398 | Exciting coil drive circuit of magnetic sensor An exciting coil drive circuit of a magnetic sensor comprises a D/A converter that receives input of digital data for detecting a magnetic field; a first amplifier that outputs a drive signal P applied to one end of an exciting coil of the magnetic sensor based on t... | 04/08/2008 |
| 7304475 | Mechanism for and method of biasing magnetic sensor A magnetic sensor package having a biasing mechanism involving a coil-generated, resistor-controlled magnetic field for providing a desired biasing effect. In a preferred illustrated embodiment, the package broadly comprises a substrate; a magnetic sensor element; a... | 12/04/2007 |
| 7233867 | Eddy current inspection method and system An eddy current inspection system and method for inspecting a component is provided. The system includes an eddy current probe for sensing eddy currents from the component and an analog to digital converter configured for converting eddy currents to digital signals.... | 06/19/2007 |
| 7196514 | Multi-conductive ferromagnetic core, variable permeability field sensor and method A magnetic field sensor relies on variations in permeability of magnetic material to detect an external field. An exemplary magnetic field sensor includes a lengthwise extending sensing element, and a coil wound about the sensing element. The sensing element may be ... | 03/27/2007 |
| 6909368 | Magnetic field detection device The present invention is a magnetic field detection device that makes use of a frequency characteristic affording circuit in order to selectively detect magnetic signals from a frequency domain accurately at a high level of sensitivity. The present invention has a m... | 06/21/2005 |
| 6345228 | Road vehicle sensing apparatus and signal processing apparatus therefor A road vehicle sensor provides an output signal having a magnitude which varies with time through a plurality of values as a vehicle passes the sensor. Signal processing apparatus monitors the timing of sensor signals generated from sensors in adjacent la... | 02/05/2002 |
| 6194897 | Magnetic sensor apparatus The present invention relates to a magnetic sensor apparatus which is capable of detecting a very weak magnetic field even when the DC bias magnetic field is at zero and greatly reducing detection output occurring due to factors such as inconsistency of a... | 02/27/2001 |
| 5793208 | Excited magnetic sensor with latch A magnetic sensor includes a magnetic core, an excitation coil, an oscillator and an excitation circuit, a detection coil, and a latch circuit. The excitation coil is wound on the magnetic core. The oscillator and the excitation circuit repeatedly supply ... | 08/11/1998 |
| 5548279 | Method and apparatus for detecting a power line A method and apparatus for detecting power lines including a pickup coil for detecting the magnetic field generated by the current conducted by a power line and for producing a sense current in response to the detected magnetic field, a gyrator circuit fo... | 08/20/1996 |
| 5235275 | Magnetic inspection apparatus for thin steel strip having magnetizer and detection coil within a hollow roller rotated by the steel strip In a magnetic inspection apparatus for a thin steel strip of the invention, a pole-to-pole distance of a magnetizer, which is housed in a hollow roller contacting a traveling thin steel strip to oppose the thin steel strip, is set between twice and eight ... | 08/10/1993 |
| 4972146 | Saturble core device with DC component elimination for measuring an external magnetic field A device for measuring a magnetic field which is constant or varies over time, includes at least one core (3, 4) consisting of a material having high permeability, a coil (5, 6) for the magnetization of this core via an alternating current source (I) conn... | 11/20/1990 |
| 4748408 | Method and apparatus for providing direction-indicative output signals to the integrating amplifier of a device for detecting magnetic direction A magnetic direction detecting apparatus has a magnetic sensor head composed of a magnetic core, an exciting coil wound around the core and a pair of detection coils diametrically wound around the core perpendicularly to each other; an oscillator for supp... | 05/31/1988 |
| 4447776 | Pulse driver for flux gate magnetometer A driver circuit for a fluxgate magnetometer has a repetition rate controble independent of the magnetometer core winding inductances, and a current-ON interval terminated only by core saturation. In this manner, power consumption is greatly reduced as c... | 05/08/1984 |
| 4305035 | Magnetic field amplitude detection sensor apparatus A magnetic field sensor is illustrated which in one useful application comprised two orthogonally positioned coils each having its own electronics and each wound on separate small strips of core material and positioned in a gimballed fixture for use as an... | 12/08/1981 |
| 4303886 | Magnetic field strength measuring apparatus A rod of magnetic material which has a very small diameter compared to its length is used in combination with a drive and output winding wound around the circumference of the core rod to provide the sensor for measuring magnetic field strength. The rod is... | 12/01/1981 |
| 4300095 | Self excited saturatable core magnetic field detection apparatus A magnetic field sensing device comprising a magnetic rod which is direction sensitive relative to the field being measured. The rod is of such design that the magnitude or the strength of the field being sensed, significantly affects the magnitude of the... | 11/10/1981 |
| 4290018 | Magnetic field strength measuring apparatus with triangular waveform drive means A magnetic field directional magnetic sensor wherein the magnetic material has a large length-to-diameter ratio and comprises two coils wound around the magnetic material which also have a small diameter compared to the length. A first coil is driven with... | 09/15/1981 |
| 4139950 | Direction responsive flux gate unit A flux gate unit for producing an output representing the directional orientation of the unit with respect to the horizontal component of the earth's magnetic field, and in which a saturable flux gate magnetic core structure is mounted for leveling moveme... | 02/20/1979 |
| 3936949 | Static non-swinging course determining device on a vehicle A static non-swinging device for determining the course on board a vehicle comprising a magnetometer having three axes for determining the components of the earth's magnetic field along three axes connected to the vehicle, a vertical gyroscope and a compu... | 02/10/1976 |
