Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-4,873,474 |
Winch with shut-off load limiter A winch powered by an electric motor. A steel torroid determines the magnetic field generated by the current demand of the motor. A voltage sensitive hall effect... |
| US-4,873,473 |
Modular motor controller An apparatus for controlling a motor comprises an oscillator for providing a source of periodic signals, and a divider for converting the oscillator output into... |
| US-4,873,472 |
Flat cathode ray tube display apparatus In a flat cathode ray tube display apparatus a line scanning, low energy, electron beam (18) is directed substantially parallel to a faceplate (12) carrying a... |
| US-4,873,471 |
High frequency ballast for gaseous discharge lamps An electronic frequency inverter circuit receives input electrical power at a lower frequency and energizes a load circuit including gaseous discharge lamps in a... |
| US-4,873,470 |
Programmable ultraviolet lamp control system A variable intensity, ultraviolet lamp is used in a drying process. The ultraviolet lamp provides a low level intensity for use during a low intensity portion of... |
| US-4,873,469 |
Infrared actuated control switch assembly A switch assembly actuated by passive infrared radiation for operating a light in a space, the switch assembly including an optical system which senses infrared... |
| US-4,873,468 |
Multiple sheet beam gridded electron gun A gun for generating a multiple sheet beams 50 of electrons has a flat surfaced cathode 10 with parallel protruding ridges 12 of non-emitting material forming... |
| US-4,873,467 |
Ion source with particular grid assembly An ion source has the typical chamber wherein ions are produced and caused to be propelled outwardly through at least a pair of grids which have a ... |
| US-4,873,466 |
Igniter plug An igniter plug comprising: a metallic shell having a diameter-reduced seat at one open end, the seat being tapered to progressively decrease its diameter as... |
| US-4,873,465 |
2T-cut piezoelectric resonator using coupled contour modes The piezoelectric resonator (1) comprises two plates (5,6) and at least two parallel bars (2 to 4) connecting the plates (5,6) to each other. The orientation of... |
| US-4,873,464 |
Terminal in an electric motor A terminal in an electric motor comprises a generally flat portion in a shallow recess in an outer wall of the motor housing for forming a touch contact with a... |
| US-4,873,463 |
D.C. electric motor In a d.c. motor, the stator may form the armature and has its windings inserted in slots in its cylindrical surface and the rotor may comprise a permanent magnet... |
| US-4,873,462 |
Stepping motor with low detent torque A synchronous motor having peripheral teeth on the rotor magnetized by a permanent magnet and radially inwardly projecting, electromagnetically energized stator... |
| US-4,873,461 |
Electric motor sterilizable surgical power tool An electric motor suitable for use in a steam sterilizable surgical tool comprising a casing with a peripheral wall, plural magnets, an armature and structure... |
| US-4,873,460 |
Monolithic transistor gate energy recovery system Energy is recovered from an insulated gate semiconductor switch, such as a MOSFET, that is otherwise lost in the gate capacitance by producing a notch in the... |
| US-4,873,459 |
Programmable interconnect architecture A user-programmable interconnect architecture, which may be used for logic arrays for digital and analog system design, is disclosed. In one embodiment, a... |
| US-4,873,458 |
Voltage level detecting circuit having a level converter A voltage level detecting circuit includes a resistance voltage divider, a level converter and an MOS driver arranged such that the detection characteristics are... |
| US-4,873,457 |
Integrated sample and hold circuit A sample and hold circuit made entirely of NPN transistors, capacitors and resistors uses double emitter-follower transistors for gating an input signal onto a... |
| US-4,873,456 |
High speed state machine A state element having a pair of parallel-connected, inversely-enabled latches forms the basic state-machine building block. A flip-latch is formed by combining... |
| US-4,873,455 |
Programmable ferroelectric polymer neural network The network comprises several memory elements made of ferroelectric polymer, arranged in a matrix organization at the intersections of row and column electrodes.... |
| US-4,873,454 |
Power source switching circuit A new type of power source switching circuit is disclosed. In the device of the present invention, a relay is used instead of semiconductor elements which are... |
| US-4,873,453 |
DC motor speed controller having protection A controller for a batter-drive DC motor controls the average motor current by switching a series-connected FET on and off with a pulse-width-modulated gate... |
| US-4,873,452 |
Collision detector for a vehicle It is an object of the present invention to provide a collision detector for a vehicle, capable of avoiding the adverse effect of the diagnostic pulses on the... |
| US-4,873,451 |
Electrical system for a motor vehicle The object of the present invention is an electrical system for distributing electrical power to the user devices installed on board of a motor vehicle, and, in... |
| US-4,873,450 |
Electrical generating apparatus and method Apparatus and method for generating electricity cheaply, efficiently, and with no resulting air or water pollutants. The device is pressurized so that water is... |
| US-4,873,449 |
Process and apparatus for three-dimensional surveying The invention relates to process and apparatus for three-dimensional surveying by triangulation with a laser beam source. Pursuant to known practice, a laser... |
| US-4,873,448 |
Input circuit having a photo-coupler with bi-directional indicator Disclosed is an input circuit using a photo-coupler for circuit isolation which comprises a photo-coupler and an indicator for indicating the presence of an... |
| US-4,873,447 |
Wafer transport apparatus for ion implantation apparatus A wafer transport apparatus for an ion implantation apparatus includes means for successively transferring wafers from a wafer cassette, inserting the wafers... |
| US-4,873,446 |
Device for irradiating denture parts An irradiation device for the radiation polymerization of synthetic materials in denture parts is described, having an electric lamp as source for radiation in... |
| US-4,873,445 |
Source of ions of the triode type with a single high frequency exitation
ionization chamber and magnetic... An ion source of the triode type is provided having a single ionization chamber, high frequency excitation and magnetic confinement of the multipole type,... |
| US-4,873,444 |
Detection of surface impurity phases in high T.sub.C superconductors
using thermally stimulated luminescence Detection of surface impurity phases in high-temperature superconducting materials. Thermally stimulated luminescence has been found to occur in insulating... |
| US-4,873,443 |
Magnetic superconducting detector A photon detector which uses a superconducting material to detect photons of a specific frequency. The superconducting material is kept in its superconducting... |
| US-4,873,442 |
Method and apparatus for scanning thermal images An imaging sensor for scanning an image in an object space is disclosed. The imaging sensor comprises a first and second plurality of infrared detectors. Also... |
| US-4,873,441 |
Method of and apparatus for recording and reading out radiation image
information An apparatus for recording and reading out radiation image information including a circulatory feed system for feeding stimulable phosphor sheets. Prior to... |
| US-4,873,440 |
Electron microscope image output method and apparatus In a system for outputting an electron microscope image, a two-dimensional sensor for storing electron beam energy thereon is exposed to an electron beam passing... |
| US-4,873,439 |
X-ray detector X-ray detection systems based upon the nonlinear optical properties of multiple quantum well (MQW) semiconductor structures is described. X-rays generate... |
| US-4,873,438 |
Radiation image read-out apparatus using a fluorescent light guide A radiation image read-out apparatus comprises a stimulating ray source for producing stimulating rays which excite a stimulable phosphor, a device for scanning... |
| US-4,873,437 |
Radiation image read-out method and apparatus In a radiation image read-out method and apparatus, a stimulable phosphor sheet carrying a radiation image stored thereon is exposed to stimulating rays which... |
| US-4,873,436 |
Nondestructive readout of a latent electrostatic image formed on an
insulating material A method and apparatus are described for the nondestructive readout of a latent electrostatic image formed on a sheet or layer of insulating material. A sheet or... |
| US-4,873,435 |
Laser beam scanning system A laser beam emitted from a laser source is deflected by a light deflector such as a rotational polygonal mirror or a galvanometer mirror to scan a ... |
| US-4,873,434 |
Scanning optical microscope using single laser beam A scanning optical microscope which comprises a source of optical radiation and means for focussing radiation from the source into an interrogating spot on a... |
| US-4,873,433 |
Electromagnetic radiation detecting device with hollow semicylindrical
chopper An electromagnetic radiation detecting device comprises at least one radion detector for detecting electromagnetic radiation from a hemisphere, a... |
| US-4,873,432 |
Compound application detector A detector for a can making apparatus applying a compound to a seaming flange of a can end, the detector for detecting the presence of said compound on said... |
| US-4,873,431 |
Recording apparatus with optical fiber cable interconnecting
microcomputers A control system for controlling a recording apparatus having a plurality of microcomputers, each microcomputer being formed in a single package. Each package... |
| US-4,873,430 |
Method and apparatus for optically measuring characteristics of a thin
film by directing a P-polarized beam... A method for optically measuring at least one characteristic of a thin film on a reflecting substrate. A p-polarized beam of collimated light of known intensity... |
| US-4,873,429 |
Optical pick-up head without pick-up of stray light An optical pickup head comprising a substrate on which a optical sensor is formed, and an optical member adhered on said optical sensor on said substrate by an... |
| US-4,873,428 |
Image processing apparatus using conversion means An image processing apparatus comprises an image data generator and a characteristic converter for converting a characteristic of the image data generated by the... |
| US-4,873,427 |
Card or pass in plastic material incorporating an integrated memory
circuit A card or pass comprising at least two layers, suitably mated, of shock-resistant plastic film transparent to infrared light. Inside these layers, identification... |
| US-4,873,426 |
Technique for reading bar codes A technique for reading a bar code representative of message information is stored electronically in bit-map form. The bit map is obtained by optically scanning... |
| US-4,873,425 |
Vandal resistant read/write device for electronic memory cards A device for reading and/or writing electronic memory cards, said device providing protection against acts of vandalism. The card is guided by slideways. The... |
Copyright 2008−2012 Patents.com
