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 |
| 5142372 | Three-dimensional optical imaging of semi-transparent and opaque objects using ultrashort light pulses, a streak camera and a coherent fiber bundle An apparatus for producing a 3-dimensional image of semi-transparent object or of a opaque object in a semi-transparent media includes a picosecond or a femtosecond laser, a streak camera, a coherent fiber bundle, a video camera and a computer. The appara... | 08/25/1992 |
| 5095404 | Arrangement for mounting and cooling high density tab IC chips A printed circuit board assembly includes a printed circuit board having a top side, a bottom side and a hole. A heat spreader which comprises a plate made of a material having high thermal conductivity is mounted on the bottom side of the printed circuit... | 03/10/1992 |
| 5091691 | Apparatus for making surface photovoltage measurements of a semiconductor An apparatus for making ac surface photovoltage (SPV) measurements of a specimen of semiconductor material under dc bias voltage conditions includes a light source whose output beam is intensity modulated, an adjustable dc bias voltage source, a conductiv... | 02/25/1992 |
| 5046747 | Recreational and sporting device A board type recreational and sporting device for use in riding down an inclined surface includes an elongated platform for supporting a rider in a generally upright position. The platform has a front portion, a central portion and a rear portion. A front... | 09/10/1991 |
| 5042494 | Method and apparatus for detecting cancerous tissue using luminescence excitation spectra A method and apparatus for detecting the presence of cancerous tissue using native visible luminescence. The tissue to be examined is excited with a beam of monochromatic light that causes the tissue to fluoresce over a spectrum of wavelengths. The intens... | 08/27/1991 |
| 5034903 | Apparatus and method for measuring the time evolution of carriers propogating within submicron and micron electronic devices An apparatus for determining and displaying the time evolution profile of electron carriers present within a submicron or micron device comprises a laser for generating a beam of ultrafast pulses of ultraviolet light. A first beam splitter splits each pul... | 07/23/1991 |
| 5011364 | Portable article handling/supporting apparatus An article handling/supporting apparatus having a frame, a resolvable base attached to the frame, a turntable assembly mounted to the base, a main boom pivotally connected to the turntable assembly and a main article supporting arm pivotally connected to ... | 04/30/1991 |
| 5003168 | Trigger circuit for a streak camera sweep drive circuit A trigger circuit for use in providing a trigger pulse to a sweep drive circuit in a streak camera. The trigger circuit comprises a low voltage DC power supply, a resistor, a charge line and a photodetector switch all connected in series. The photodetecto... | 03/26/1991 |
| 4986264 | Knee brace A knee brace having an anterior tibial shell and an anterior femoral shell which are closely configured to the shape of the lower leg and thigh respectively and which are joined by a frame in the form of a pair of polycentric hinge joints. Each one of the... | 01/22/1991 |
| 4987575 | Tetravalent chromium (Cr4+) as a laser-active ion for tunabale solid-state lasers A laser-medium in the form of a dielectric crystal or glass doped with tetravalent chromium. The dielectric crystals are of olivine-like structure such as germanates of formula (A) (RE)GeO4 where (A=Na or Li, RE=Y, Lu or Gd), crystals of willem... | 01/22/1991 |
| 4973160 | SHG autocorrelator An SHG autocorrelator for use in measuring the duration of an ultrashort pulse of light includes in one embodiment a thin pellicle beamsplitter for splitting the pulse of light into first and second beams, a stationary optical delay disposed along the pat... | 11/27/1990 |
| 4972423 | Method and apparatus for generating ultrashort light pulses A method and apparatus for generating a light pulse having a duration as short as about 3 picoseconds is disclosed. A 5 mJ 25 picosecond second harmonic light pulse from a Nd:YAG laser system is focused into a 5 cm cell filled with D2 O so as t... | 11/20/1990 |
| 4969156 | Laser cavity having an adjustable optical path length extender A laser is disclosed which includes an optical path length extender for increasing the optical path length of the laser cavity. The path length extender, which is disposed inside the laser cavity itself, includes a set of three curved mirrors each having ... | 11/06/1990 |
| 4961569 | Arm levers for total exercise stationary cycles An arm lever for use on exercise equipment. The arm lever includes a handle, a support member and a connecting mechanism for connecting the handle to the support member. The connecting mechanism enables the handle to be oriented at any one of a number of ... | 10/09/1990 |
| 4958386 | Aerobic pants Athletic legwear designed especially for use by a person while engaged in aerobic exercise includes a pair of pants of approximately knee-length. A plurality of pocket assemblies are removably attached to the pants between the waist and knee of the wearer... | 09/25/1990 |
| 4956548 | Ultrafast oscilloscope An oscilloscope constructed for use in real time resolving an ultrafast voltage signal includes a streak camera having a transmission line photocarthode, a constant light source for illuminating the photocathode, an input coupled to the transmission line ... | 09/11/1990 |
| 4931704 | Ultrafast sampling oscilloscope A femtosecond sampling oscilloscope includes a femtosecond laser for generating a pulse of light in the femtosecond range and a beam splitter for splitting the pulse of light into pulses traveling along first and second beam paths. A photoconductive switc... | 06/05/1990 |
| 4930516 | Method for detecting cancerous tissue using visible native luminescence A method and apparatus for detecting the presence of cancerous tissue using visible luminescence. The tissue to be examined is excited with a beam of monochromatic light that causes the tissue to fluoresce over a spectrum of wavelengths. The intensity at ... | 06/05/1990 |
| 4932031 | Chromium-doped foresterite laser system A laser system in which the laser medium is a single crystal of Cr3+ :Mg2 SiO4 is disclosed. In one embodiment, the system comprises a single crystal of chromium doped forsterite and a cavity which includes a pair of 30 cm... | 06/05/1990 |
| 4917740 | Braiding machine A braiding machine for use in applying a tubular shaped braid around a product includes a closed loop induction heater for applying heat to the product as it is being fed through the braiding machine before it is wound on a take-up reel for use or further... | 04/17/1990 |
| 4918635 | Ultrafast digital photonic signal processing using optical noncollinear second harmonic generation A technique for performing multiplication oriented optical digital computations in which a pair of identical primary frequency coherent beams of light are directed off-axis through a second harmonic generating crystal to produce an on-axis frequency doubl... | 04/17/1990 |
| 4916584 | Display for use in combination with a brake light in the rear window of an automobile A display which is in the form of a sheet of transparent material having imprinted on one side thereof the upper portion of a head of an animal and having on the other side a layer of a non-permanent adhesive. The display is mounted on the rear window of ... | 04/10/1990 |
| 4895446 | Particle detection method and apparatus An apparatus and method are disclosed for detecting the presence of particles on the surface of an object such as the front side of a patterned semiconductor wafer. A collimated beam of light is directed onto an area on the surface of the object at a graz... | 01/23/1990 |
| 4891584 | Apparatus for making surface photovoltage measurements of a semiconductor An apparatus for making ac surface photovoltage (SPV) measurements of a specimen of semiconductor material under dc bias voltage conditions includes a light source whose output beam is intensity modulated, an adjustable dc bias voltage source, a conductiv... | 01/02/1990 |
| 4884614 | Safety gate A safety gate which is adapted to be mounted on the sidewalls at the top or bottom of a stairway to prevent unwanted access thereto by a toddler or on the sidewalls of a door frame or other structure to prevent unwanted passage therethrough from either di... | 12/05/1989 |
| 4878554 | Motorized mail cart A motorized cart for the transportation of at least one mail bag includes a box-like frame having a plurality of hooks spaced along its top surface to which may be attached one or more mail bags. A pair of wheels are fixedly mounted to an axle disposed al... | 11/07/1989 |
| 4873436 | 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 layer of semiconductor material is disposed in relatively close proximity to the insulating m... | 10/10/1989 |
| 4857012 | Multipurpose boot for round-to-flat electrical cable A multipurpose boot for use with a jacketed round-to-flat multiconductor electrical cable comprises in one embodiment a sheet of adhesive coated non-conductive flexible plastic material appropriately cut and scored to define a center panel, a pair of fold... | 08/15/1989 |
| 4853595 | Photomultiplier tube having a transmission strip line photocathode and system for use therewith A photomultiplier tube which may be used in time resolving a luminiscence profile emitted from a sample with picosecond resolution using short (picosecond) electrical pulses as a probe and in time resolving an electrical pulse profile produced by fast ele... | 08/01/1989 |
| 4847496 | Nondestructive readout of a latent electrostatic image formed on an insulated 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 layer of semiconductor material is disposed in relatively close proximity to the insulating m... | 07/11/1989 |
| 4843626 | Multiband limiter with automatic limiting threshold (ALT) compensation A multiband audio frequency signal limiting apparatus suitable for use in a wide range of applications is disclosed. An input signal is divided into discrete frequency bands (any practical number is suitable) which are each passed through a separate limit... | 06/27/1989 |
| 4838151 | Combination window and floor fan A fan which can be mounted in a window opening without using any tools, mounting hardware or special brackets or used as a floor fan includes a pair of panel sections which are interconnected by a pair of hinge joints for pivotal movement relative to each... | 06/13/1989 |
| 4833324 | 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 layer of semiconductor material is disposed in relatively close proximity to the insulating m... | 05/23/1989 |
| 4826100 | Device for use in unwinding or rewinding coiled electrical wire A device for use in assisting a person in unwinding or re-winding coil wire includes a base adapted to rest on a horizontal surface and a coil holder rotatably mounted on the base and sized to accommodate the coil wire. The coil holder has a disc having a... | 05/02/1989 |
| 4827212 | Noninvasive method and apparatus for characterization of semiconductors A method and apparatus are described for characterizing a semiconductor using the surface photovoltage (SPV) effect. A region of the surface of the semiconductor is illuminated with an intensity modulated beam of light, the wavelength of the light being s... | 05/02/1989 |
| 4811531 | Method and device for plugging a hole A device for inserting a cork plug into a hole to a pre-determined depth, the hole having a diameter d and having been made in the concrete foundation of a building for termite control purposes, the device including in one embodiment a rod for partial ins... | 03/14/1989 |
| 4805918 | Frangible target game A game for use in alleviating stress includes a stand. The stand, which is in the shape of a rectangular parallelipiped, has a groove, also rectangular in shape, extending longitudinally across its entire length. A plate, made up of transparent plastic, i... | 02/21/1989 |
| 4799858 | Clip-on electric fan A portable electric fan having a base in the form of a large clip, a yoke assembly which is mounted on said base for tilting movement back and forth about a horizontal axis and rotational movement about a vertical axis and a fan unit mounted on the yoke a... | 01/24/1989 |
| 4772126 | Particle detection method and apparatus An apparatus and method are disclosed for detecting the presence of particles on the surface of an object such as the front side of a patterned semiconductor wafer. A vertically expanded, horizontally scanning, beam of light is directed onto an area on th... | 09/20/1988 |
| 4760950 | Pita bread sandwich holder A holder for a pita bread sandwich or other similar article of food is disclosed. The holder is constructed from a cardboard blank which is cut and scored to define a pair of bottom panels, a pair of side panels hingedly connected to the bottom panels, a ... | 08/02/1988 |
