Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 6220168 | Underwater intelligence gathering weapon system An underwater intelligence gathering weapon system accurately places a weapon underwater and then communicates therewith from other platform(s). The weapon is equipped to maneuver through the air to a destination at the water's surface. A first transceive... | 04/24/2001 |
| 6213021 | Electromagnetic sea mine detonation system A vehicle is towed underwater by an air traveling helicopter through a towing cable to induce powered rotation of impellers on the vehicle during its underwater travel at a preselected seawater depth. An electrical generator driven by such impeller suppli... | 04/10/2001 |
| 6112668 | Magneto-inductively controlled limpet A limpet and method for control thereof have a receiver section responsive o magneto-inductive signals in the ELF to VLF range that arm and fire a main charge. A swimmer places the limpet and enables it for control by remotely transmitted magneto-inductive... | 09/05/2000 |
| 5886283 | Desensitized firing circuit A desensitized firing circuit has a pair of diodes, a resistor, and a sevble wire loop used in combination with an existing firing circuit. With the severable wire loop intact, current flow through the resistor is shunted to ground, and the circuit opera... | 03/23/1999 |
| 5450805 | Warhead influence An active electromagnetic influence firing system has transmitter coils and eceiver coils mounted on a single warhead section. One set of receiver coils has vertical look capability for detecting surface ships and another set has 360° look capability for ... | 09/19/1995 |
| 5189368 | Magnetometer A magnetometer is desclosed in which a gas cell containing atomic vapor is pulse pumped at one of the transitions of the gas in the cell. After the pulse has passed through the gas cell, thereby causing alignment of all the individual atomic moments along... | 02/23/1993 |
| 4970958 | Marine mine fire control mechanism A control system for a magentic submarine mine adapted to be fired automaally upon the approach of a vessel and in which the possibility of premature detonation of the mine by a minesweeper is substantially reduced. For example, some of the magnetic mine... | 11/20/1990 |
| 4956612 | Magnetic mine firing circuit A firing circuit for a magnetic mine including an oscillator and magnetomr bridge is arranged to produce an alternating signal representative of the strength of the ambient magnetic field in the neighborhood of the mine. This signal after rectification a... | 09/11/1990 |
| 4949643 | Anti-tilt buoy mooring system A buoy mooring device and system adapted to maintain a buoy in an upright untilted position. A rigid bail having a center of curvature essentially coincident with the buoy center of buoyancy is connected to the bottom of the buoy. A mooring line having a... | 08/21/1990 |
| 4697519 | Smart mine A smart mine includes a pair of He3 magnetic sensors exteriorly connected to a head compartment of a mine housing. A torpedo compartment for housing a torpedo completes the mine housing. The head compartment contains the sensor support electron... | 10/06/1987 |
| 4535696 | Device for underwater missiles for use against submerged submarines A device for underwater missiles for use against submerged submarines, said missiles including a housing (1) having a front portion, intended to contact the outside surface of a submarine. According to the invention, a tubular ring member (6) is rotatably... | 08/20/1985 |
| 4433626 | Underwater missile for use against submerged submarines An underwater missile for use against submerged submarines has a missile housing with a magnetic contact surface (2) at a foremost end portion intended to contact a submerged submarine. The magnetic contact surface is provided by two magnets (2',2") locat... | 02/28/1984 |
| 4308501 | Digital peak sensor A digital circuit for sensing peaks exceeding a predetermined threshold in nalog signals employs clock and control oscillators arranged such that their frequencies vary in opposite senses in response to changes in the sensed signal. The clock oscillator fr... | 12/29/1981 |
| 4229697 | Magnetometer instrumentation with digitally controlled range changing Magnetometer instrumentation which processes the signals from an array of magnetometer assemblies wherein the need for multiple sets of motor driven resistors to change the gain of the signal processing channels is eliminated by the provision of an arrang... | 10/21/1980 |
| 4220108 | Minesweeping method and apparatus A device employing a permanent magnet is used to provide a sweep for magnetically activated marine mines.... | 09/02/1980 |
| 4218975 | Underwater electric current and alternating magnetic field detector 1. An underwater eddy current detector comprising a hollow elongated conding member, said conducting member having a plurality of longitudinal conducting paths forming portions of the exterior surface of said conducting member, a portion of said conducti... | 08/26/1980 |
| 4210083 | Underwater electric current and alternating magnetic field detector 1. A device for detecting underwater electrical currents comprising a mem having a cylindrical body portion and electrical conducting end caps secured thereto, an elongated electrical conducting member electrically joining said end caps, toroidal detecto... | 07/01/1980 |
| 4187779 | Marine mine 1. In a pressure responsive mine having a casing and an arming and firing rcuit therein, a pressure responsive device mounted in the casing and exposed to the pressure of the sea water, a second pressure responsive device mounted in the casing, a fluid co... | 02/12/1980 |
| 4185552 | Mine firing control system 1. In a mine firing control system of the character disclosed, the combination of a mine firing control circuit including a plurality of electron discharge devices each of which is adapted to be rendered conducting when the bias voltage thereon is elevate... | 01/29/1980 |
| 4068164 | Harmoic flux gate magnetometers and gradimeters and windings An improved ring core second harmonic flux gate magnetometer is constructed as a module for use as a ferrous metal detector. Pairs of modules may also be used as gradiometers. Various uses and winding arrangements on the ring cores are disclosed.... | 01/10/1978 |
| 4044682 | Ignition current generator for an electrical projectile fuze An ignition current generator for an electrical projectile fuze comprising a soft iron ring which, viewed in the direction of the projectile, is secured at the rear end face of a substantially ring-shaped permanent magnet which is axially displaceable. Th... | 08/30/1977 |
| 3965751 | Integrated magneto-seismic sensor To detect and discriminate by magnetic and seismic means any metallic intruding object, sensors are emplaced in areas into which the object to be detected and identified is expected to enter. In prior like sensors, separate magnetic and seismic sensors we... | 06/29/1976 |
