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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 4731881 | Narrow spectral bandwidth, UV solar blind detector Detection of 253.7 nm radiation in the solar blind UV spectrum is enhanced y using an energy wavelength shifter with a photomultiplier tube which senses fluorescent emissions. A ruby block wavelength shifter has a coating that passes energy including the 2... | 03/15/1988 |
| 4721836 | Apparatus for transient annealing of semiconductor samples in a controlled ambient An improved apparatus for annealing an ion-implanted semiconductor sample duces the deleterious side effects otherwise associated with the process. A semiconductor sample, fabricated, for example, from indium phosphide or gallium arsenide, is set upon the... | 01/26/1988 |
| 4691209 | Wideband antenna A wideband antenna with reduced diameter and volume compared to prior art tennas and having non-critical dimensions resulting in ease of manufacture and tolerance to damage in portable applications and during installation. In one embodiment the antenna is... | 09/01/1987 |
| 4597631 | Printed circuit card hybrid A hybrid connector is presented whereby both electrical and fiber optic cables are connected to a printed circuit card. The connector consists of a female half which contains a plurality of fiber optic contact inserts molded into the connector, and also f... | 07/01/1986 |
| 4592004 | Electrooptical matrix multiplication using the twos complement arithmetic for improved accuracy The improved electrooptic signal processing relies upon matrix-matrix multiplication using twos complement arithmetic. A source of pulse collimated light illuminates two two-dimension spatial light modulators that operate in a reflective mode through a po... | 05/27/1986 |
| 4563331 | System for measuring bioluminescence flash kinetics A test chamber is disclosed for determining the bioluminescent signatures of planktonic organisms in which a light tight chamber has at least one light port, and preferably two light ports, where photomultiplier tubes are connected to the test chamber for... | 01/07/1986 |
| 4555273 | Furnace transient anneal process A method for annealing semiconductor samples, especially following ion-implantation of semiconductor samples is disclosed. A furnace on a set of rails is passed over the semiconductor sample which is supported on a stationary wire basket made of low therm... | 11/26/1985 |
| 4533333 | Helicopter extractable cold weather/water liferaft An inflatable liferaft improves disaster victims' chances of survival, pacularly in cold waters. Three inflatable ribs support a layered canopy from the sides of the raft to assure protection from the elements. A highly reflective coating or an equivalen... | 08/06/1985 |
| 4533215 | Real-time ultra-high resolution image projection display using laser-addressed liquid crystal light valve A more clearly defined image is projected onto a distant screen in real-time at video rates to allow for collective analysis of rapidly changing updated data. A laser has its coherent beam modulated in accordance with the images to be viewed. The modulate... | 08/06/1985 |
| 4523185 | Zoned intrusion display with series-connected sensors A visual display system detects and continuously displays the location of a breach in a protected building or secure area. Each of a plurality of exclusive OR gates is connected to a separate reed-type sensor switch. Each exclusive OR gate output is conne... | 06/11/1985 |
| 4520273 | Fluid responsive rotor generator The rotor generator includes an elongated generally cylindrically shaped mework. An elongated rotor is longitudinally aligned within the framework and is rotatably mounted therein. The rotor has a plurality of curved blades which are capable of causing r... | 05/28/1985 |
| 4514834 | Expendable underwater acoustic projector An expendable sound source provides a cost effective projection of acoustic nergies in the ocean. A tubular housing contains a d.c. motor that locates its shaft coaxial with the housing. Cylindrically-shaped camming blocks engage spurs in a pair of rigid p... | 04/30/1985 |
| 4513542 | Portable surfacing machine for boiler manhole A portable machine is provided for in-place grinding of an inside ellipti face of an elliptical boiler manhole access with a grinder which has a flat grinding surface. The boiler manhole access also has an outside elliptical face and a conforming ellipti... | 04/30/1985 |
| 4456086 | Integrated wheelchair and ambulator An ambulator which can be mated to a wheeled frame to form a wheelchair is rovided to enable a paraplegic to stand on the ambulator and be separated from the frame for maneuvering in confined spaces. The ambulator has power operated articulated linkage for... | 06/26/1984 |
| 4453426 | Pivotal mono wing cruise missile with wing deployment and fastener mechanism A moveable wing aircraft including a quick release, attachment mechanism carrying the aircraft on a bomb rack or other carrier and a mechanism for deploying the moveable wing from its captive carry position to its extended free flight position are discl... | 06/12/1984 |
| 4450041 | Chemical etching of transformed structures A maskless technique is disclosed for shaping semiconductor materials by ming areas that are selectively etchable with respect to the rest of the structure. In one embodiment of this invention, a body of amorphous material is subjected to radiation by a ... | 05/22/1984 |
| 4448569 | Lift sling emplacement device An apparatus is disclosed which is employable by a remotely controlled unwater work system to emplace a lift sling beneath an object resting on mud, sand or the like. The apparatus includes a hollow tube and a guide having rollers through which the tube ... | 05/15/1984 |
| 4410903 | Heterojunction-diode transistor EBS amplifier An improved apparatus modulates greater currents at higher frequencies over extended bandwidths. In addition to conventional biasing and modulation a beam of electrons is directed onto a heterojunction-diode device disposed to receive the modulating elect... | 10/18/1983 |
| 4323025 | Torpedo steering control system 1. In a homing torpedo, in combination: means for providing a target search hase of torpedo operation wherein said torpedo is controlled to change depth between predetermined search floor and search ceiling depths and simultaneously controlled to circle in... | 04/06/1982 |
| 4315609 | Target locating and missile guidance system A target locating and missile guidance system comprising reconnaissance araft equipped with laser or radar range-measuring apparatus in conjunction with a plurality of selectively predetermined ground stations. Range and altitude of the aircraft relative... | 02/16/1982 |
| 4314873 | Method for depositing heteroepitaxially InP on GaAs semi-insulating substrates A method for depositing high quality indium phosphide layers heteroepitaxly on GaAs substrates by controlling the growth between them of an interfacial quaternary alloy of Iny Ga1-y Asx P1-x.... | 02/09/1982 |
| 4306301 | Wide band frequency shifter in variable amounts 2. A sonar decoy system for receiving and retransmitting any interrogating signal throughout a wide band of frequencies, said system comprising; a sonar receiver with a receiving hydrophone; a sonar transmitter with a radiating transducer; a resolver with two ortho... | 12/15/1981 |
| 4245321 | Rotating raster generator A raster generator for producing a raster-type display on a random scan dlay terminal where the raster can be oriented at any selected angle of rotation. The rotating raster generator responds to a digital input signal representing the desired angle of r... | 01/13/1981 |
| 4219885 | Sonar target simulator 1. A system for simulating wave reflections from an irregular-shaped moving bject which has been illuminated with energy of frequency F, said system comprising; a receiver (10) for said frequency F; a generator (14) of white noise voltage; means (13) for amplit... | 08/26/1980 |
| 4213198 | Method for classification of sonar echoes 1. A method for distinguishing between submarine and non-submarine sonar gets comprising the steps of producing a series of permanent displays of sonar target echoes having fixed electrical characteristics by projecting a beam of energy pulses of more th... | 07/15/1980 |
| 3943515 | Counter-countermeasure guidance system 4. A method of avoiding countermeasure jamming techniques comprising the ps of: Transmitting a signal over at least a pair of carrier waves which differ in frequency by a predetermined amount and Receiving and beating the carrier waves one against the other t... | 03/09/1976 |
