Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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 |
| 4167671 | Rotary anode X-ray tube Tubular electromagnetic components are mounted on the drive shaft of the ary anode of an X-ray tube and external magnet windings are provided both for maintaining the drive shaft in an axial position corresponding to a working position of the anode and f... | 09/11/1979 |
| 4167256 | Tape recorder/reproducer for selectably operating in reel-to-reel and cassette modes The supply and take up reels for reel-to-reel operations are mounted on a base plate, one higher than the other, the base surface having a step. The equipment accepts the loading in of a cassette having its spools located one above the other in an axial d... | 09/11/1979 |
| 4166218 | P-I-N Diode detector of ionizing radiation with electric field straightening The distortion of the electric field in a p-i-n diode detector produced by lectrically active layer build-up on the exposed surface of the i zone is removed by irradiating the exposed i zone surface with a light source having the intensity of a few milliwa... | 08/28/1979 |
| 4159309 | Process for the catalytic reduction of reducible compounds in solution Reducible pollutants can be detoxified by reduction and metals can be recred by reduction of the corresponding metal ions by bringing into contact a catalyst with the solution which is suitable for the electrochemical reduction of the ions in question, a... | 06/26/1979 |
| 4146857 | Ignition coil for engine ignition system The rod-shaped core portion carrying the high-voltage secondary winding is separated from the U-shaped core portion carrying the primary winding by an insulating partition integral with an insulating casing that both provides galvanic separation between t... | 03/27/1979 |
| 4137908 | Apparatus for observing cardiac rhythm free of interfering effects A cardiac rhythm observation apparatus that separates and then provides for correlation of cardiographic and electrocardiographic signals has four electrodes for attachment to the chest of a subject. Two of the electrodes connect a high-frequency current ... | 02/06/1979 |
| 4119698 | Reclamation treatment of red mud The red mud by-product of the Bayer process by which aluminum oxide is reed from bauxite as an aluminate, is digested with concentrated sulfuric acid or with sulfur trioxide gas to produce sulfates that can be leached out to the resulting mass with water... | 10/10/1978 |
| 4110595 | High-frequency plasma-heating apparatus An array of adjacent wave guides feed high-frequency energy into a vacuum chamber in which a toroidal plasma is confined by a magnetic field, the wave guide array being located between two toroidal current windings. Waves are excited in the wave guide at ... | 08/29/1978 |
| 4083634 | Pattern exposure apparatus using polychromatic light source An exposure method for exposing to a pattern a photosensitive material formed over a substrate having a reflective surface uses a light source having beam components of different wavelengths. The beam from the light source is used to project an exposure p... | 04/11/1978 |
| 4082053 | Multirudder steering system for multihull boats In a twin hull boat, a rudder mounted in the space between the hulls and forward of the middle of the boat is connected to the rudder or rudders at or near the stern of the boat for deflection in the direction opposite to that of the stern rudder or rudde... | 04/04/1978 |
| 4080961 | Fetus scalp electrode instrument A cylindrical plug near the end of an insertion tube that is inserted through the mother's cervix to a position near the scalp of the fetus, carries at its forward end a pincers type electrode of fine spring wire which is held open so long as the shoulder... | 03/28/1978 |
| 4071162 | Bottle pack crate and bottle pack therefor A crate for beverage bottles and the like has separators for the bottles in the form of clusters of pillars extending upward from the lattice work bottom of the crate, each cluster being centered on the intersection of four bottle cells of the crate. The ... | 01/31/1978 |
| 4066904 | Method of measurement of the concentration of a substance contained in a gas and devices for carrying out said method In a method for measuring the concentration of a substance contained in a gas, the gas is irradiated with a radiation having a sufficiently short wavelength to photodissociate the substance. A photometric measurement is then carried out on at least one of... | 01/03/1978 |
| 4057069 | Method of nerve stimulation and a stimulator for the application of the method In order to excite living cells, a FM transmitter transmits for a period t at a frequency f such that the difference between f and a reference frequency fO sets the amplitude of a desired nerve stimulation pulse. A receiver implanted in the liv... | 11/08/1977 |
| 4056762 | Stroke energy limited motor-driven screwdriver An energy limiting circuit for the operating stroke of a motor-driven screwdriver energized by alternating current is activated in response to a pulse of current amplitude, which may be the starting current of the motor or the first of a series of current... | 11/01/1977 |
| 4053871 | Method and system for the iterative and simultaneous comparison of data with a group of reference data items In a method and system for the iterative and simultaneous comparison of a flow of data with a group of reference data items, the reference data items are recorded in the form of logical entities in a two dimensional memory table, one entity per column, ea... | 10/11/1977 |
| 4052441 | Separation of acids and esters in the processing of waste salt solution of cyclohexanone manufacture After acidification and separation of a concentrated aqueous solution of sodium sulfate, the water-containing organic phase that remains is first distilled to remove mainly water, then chilled to crystallize out the bulk of the dicarboxy acids, then ester... | 10/04/1977 |
| 4051747 | Method for making a tool electrode for electrical discharge machining An over or undersize abrasive master mould is used to form tool electrodes by abrading a workpiece using a circular reciprocatory motion. The master mould is made by a casting process which starts with a preformed model, positive or negative, of the exact... | 10/04/1977 |
| 4049954 | Device for accurate measurement of the dimensions of an object by ultrasonic waves In a device for accurately measuring the dimensions of metallic tubes and the like by supersonic waves in a liquid medium, typically water, obstructions providing reflecting boundaries that are partially reflecting and partially transparent for acoustic w... | 09/20/1977 |
| 4048385 | Cross-feed fuel cell battery with filter press type structure of cylindrical cross-section The component plates stacked in a filter press type structure in a repeated sequence of cathode, separator, anode and conductive plate are of cylindrical shape with an outer frame carrying the channels for supplying and withdrawing the reagents. Hollowed-... | 09/13/1977 |
| 4044731 | Composite piston with protection of the fastening screws against corrosion by a coolant A threaded cap screwed into the piston head with a sealed joint to a sleeve tube open and flanged at the other end are provided to encase the clamping screws that fasten the piston head and the upper piston body member and lower piston body member togethe... | 08/30/1977 |
| 4043295 | Apparatus for spray-coating internal surfaces of tubular articles A coating liquid is squirted through a needle control nozzle directed into open end of internal threads of a fitting or tube and is deflected radially to form a spray cone by an air jet from a revolving nozzle set slightly in front and off the axis of the... | 08/23/1977 |
| 4039929 | Inductive transducer for rectilinear or rotational displacement The inductance of a coil wound on one end of an elongated rectangular core with an elongated central window is caused to vary by the displacement of a conducting plate or ring arrangement lengthwise of the core. The other end of the core may also be wound... | 08/02/1977 |
| 4039839 | Thorium tetrabromide scintillators and radiation detection and measurement therewith Thorium tetrabromide has been found to exhibit fluorescence and radioluminescence with emission of blue light in the range from 3400 to 4800 A with a maximum around 4000 A in response to electromagnetic waves shorter than 3000 A, whether ultraviolet, X or... | 08/02/1977 |
| 4039963 | Stabilizer for the base level of an amplifier The output of an amplification assembly is coupled with the input of an integrating circuit by means of a first controlled switch. The output of the integrating circuit is coupled with the input of an intermediate stage and subtracted from the amplifier i... | 08/02/1977 |
| 4038677 | Composite semiconductor unit and method To detect defective elements in a composite semiconductor unit, such as a plurality of transistors, diodes, or the like, connected together to provide desired output levels, the elements are arranged in the unit, for example by providing coupling resistor... | 07/26/1977 |
| 4037914 | Electrical connector and connector cable The ignition cable of a motor vehicle engine is permanently connected at each end to the shell component of a connector. Each shell is of the same design and has sawtooth catch ridges. A mating plug connector, for example a apart of an interposed connecto... | 07/26/1977 |
| 4035204 | Method of carburizing the inner surface of a steel valve seat To carburize the inner surface of hollow, narrow work pieces, such as valve seats in blind bores, and avoid the use of salt baths which have residues containing Prussic acid, a mandrel is made fitting with little clearance in the order of 0.1 mm into the ... | 07/12/1977 |
| 4035160 | Method for manufacturing a convex or concave lapping tool A lapping tool for grinding or polishing glass such as optical lens having exact curvature with the lens to be worked is manufactured by pouring a liquid resin into a mold having incompatability with the liquid resin at a portion corresponding to pellets ... | 07/12/1977 |
| 4034362 | Device for automatic processing of signals recorded on an oscilloscope screen In a digital storage system for oscilloscope trace data, in order to obtain precisely the ordinate of an oscilloscope trace at the intersection of a scanning line therewith in a television camera image of the trace, a scan/trace intersection profile signa... | 07/05/1977 |
| 4031948 | Mold-equipped casting oven unit for continuous rod castings While a mold assembly providing an antechamber for the mold is fixed in the operating position, another such mold antechamber assembly is set up, adjusted and preheated in a standby position, and mechanical displacement arrangements make possible a rapid ... | 06/28/1977 |
| 4027213 | Electronic switching arrangement for energizing electric motors An electronic commutation circuit for feeding from a direct-current source an electric motor consisting of a stator with a polyphase winding and a magnetized rotor coupled mechanically with a position and angular speed sensor, comprises for each phase of ... | 05/31/1977 |
| 4024475 | Decoder for frequency-modulated tones of two different lengths A frequency recognition circuit includes a first phase locked loop to detect the carrier tone frequency, which locks to the detected frequency and provides the frequency-modulation frequency to a second PLL for modulation frequency recognition. When the p... | 05/17/1977 |
| 4024577 | Controlled power supply for a television receiver equipped with remote control A single isolation transformer supplies both the remote control receiver and the television receiver. A pulse generator such as a blocking oscillator which energizes the primary winding of the isolation transformer has its pulse width controlled in respon... | 05/17/1977 |
| 4019486 | Motor ignition system with magnetically selectable gas discharge devices A magnetic field, such as produced by a surrounding coil, lowers the breakdown voltage of a gas discharge device in series with a spark plug so that the ignition voltage will preferentially go to that spark plug rather than to others in series with gas di... | 04/26/1977 |
| 4019693 | Fishing reel This invention relates to a fishing reel for mounting on a fishing rod, said reel comprising a foot, a spool for winding the line and a support attached to said foot, an elastic return member and a control device for the spool, the paying out of the line ... | 04/26/1977 |
| 4019176 | System and method for reliable communication of stored messages among stations over a single common channel with a minimization of service message time A characteristic message exchange procedure is performed by a set of contler units at separate stations and of functionally identical design. The combination of a controller unit and a utilization unit that characterizes the application of the station co... | 04/19/1977 |
| 4017812 | Method of processing a signal, and corresponding devices In the synchronous detection signals of frequency Fo immersed in a noise, an auxiliary signal is produced having a period 1/2 Fo and in the form of a rectified symmetrical wave, by rectifying a symmetrical wave of period 1/Fo. The signal to be filtered is... | 04/12/1977 |
| 4016519 | Printed circuit coils The conducting path width of a spiral printed circuit coil is reduced for the inside of the spiral coil to obtain more inductance in the same space without substantial sacrifice in Q. In another form of spiral coil with non-constant path width, the path w... | 04/05/1977 |
| 4014671 | Device for separating drops of liquid contained in a gas stream A device for separating drops of liquid from a stream of gas or steam comprises a closed casing having a horizontal inlet and an outlet respectively having their openings in two compartments separated by a vertical grid, a deflecting nozzle in coaxial rel... | 03/29/1977 |
