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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.
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| Number | Title | Issue Date |
| 7279685 | Radiation detector The invention is a digital radiation detector utilizing the stable timing functions of a microcontroller or plurality of microcontrolling devices to perform three independent functions. A first timer generates a continuous square wave output that is fed through a cl... | 10/09/2007 |
| 6271516 | G.M. tube environment radioactivity meter having a sensitivity degradation monitoring device with a natural radioisotope and means for automatically correcting the measured radioactivity A G.M. tube environment radiameter including a sensitivity degradation monitoring device, comprising: a cyclic counter circuit for counting the pulses coming from the G.M. tube; b) a power operated moveable support for a weak radioactive source, adapted t... | 08/07/2001 |
| 5602441 | Vacuum ionization gauging tube A vacuum ionization gauging tube, particularly a Bayard-Alpert (B-A) type vacuum ionization gauging tube, has a firmly compact construction, and provides the capabilities for minimizing outgassing gases and measuring pressures accurately without affecting... | 02/11/1997 |
| 5416376 | Aerogel-supported filament The present invention is a thin filament embedded in a low density aerogel for use in radiation detection instruments and incandescent lamps. The aerogel provides a supportive matrix that is thermally and electrically nonconductive, mechanically strong, h... | 05/16/1995 |
| 5326977 | Gamma-ray compensated ionization chamber A gamma-ray compensated ionization chamber wherein the state of compensating a gamma-ray is controlled by utilizing the effect that a change in the applied voltage ratio of a high-voltage electrode to a compensating electrode changes the form of an electr... | 07/05/1994 |
| 5180917 | Self-calibrating proportional counter The invention relates to a method and an apparatus for qualifying the operation of a radiation (e.g. neutron) detector containing an ionizable gas (e.g. He3), such as a detector disposed in a logging sonde designed to be lowered in a well, wher... | 01/19/1993 |
| 4870281 | Gas-filled X-ray detector The anode connections in a gas-filled X-ray detector are mounted so as to extend transversely of the anode wire so that a substantial saving as regards space is achieved. In order to reduce field inhomogeneities in the ionization space, there may be provi... | 09/26/1989 |
| 4857740 | Wire chamber A wire chamber or proportional counter device, such as Geiger-Mueller tube or drift chamber, improved with a gas mixture providing a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of e... | 08/15/1989 |
| 4827135 | High speed curved position sensitive detector A high speed curved position sensitive porportional counter detector for use in x-ray diffraction, the detection of 5-20 keV photons and the like. The detector employs a planar anode assembly of a plurality of parallel metallic wires. This anode assembly ... | 05/02/1989 |
| 4684806 | Rhenium lined Geiger-Mueller tube A Geiger-Mueller tube includes a tubular, stainless steel cathode (A) which defines a chamber (B) therein. An anode (C) extends axially through the chamber in a spaced relationship with the cathode. A thin layer of rhenium (20) is plated on an interior su... | 08/04/1987 |
| 4678918 | Integrated radiation detector An integrated radiation detector comprises a number of electrode plates assembled at a mutual distance. The electrode plates comprise slots in which electrically insulating gas-tight strips projecting through all the electrode plates are provided, of whic... | 07/07/1987 |
| 4654556 | Apparatus for examining samples by electron emission The invention relates to the examination of samples which, by thermal or photon excitation, are able to emit electrons. These electrons are detected and located by a counter incorporating a cathode forming a mesh network. Pointed anodes coincide with the ... | 03/31/1987 |
| 4633089 | Hand held radiation detector A hand-held radiation detector for measuring localized radiation at extremely low levels of the order of 1 CPM (counts per minute); an anode is provided in the form of a needle within a sealed chamber defined by a generally cylindrical housing having a me... | 12/30/1986 |
| 4608511 | Energy filter for a Geiger-Muller tube A gamma ray energy filter for a improving the uniformity of response of a Geiger-Muller tube comprises only two spaced filter bodies. To improve the uniformity of the energy response, the two filter bodies consist of a lead/tin alloy containing substantia... | 08/26/1986 |
| 4590401 | Ion chamber with a flat sensitivity response characteristic An ion chamber exhibiting a flat response to a wide range of incident gamma energy is provided by a high-pressure fill gas mixture of a first major constituent, low atomic number gas which exhibits a reduced gamma response at low gamma energy levels, and ... | 05/20/1986 |
| 4583020 | Ionization chamber making it possible to measure high energy gamma radiation Ionization chamber making it possible to measure high energy gamma radiation, wherein it comprises a tight cylindrical enclosure containing an ionizable gas, and several coaxial cylindrical electrodes, which are insulated from one another, and are positio... | 04/15/1986 |
| 4553062 | Curved gas-filled detector with avalanche of electrons, and strip Gas-filled detector for locating the presence in space of particles or radiations. The detector according to the invention comprises a curved body containing a gaseous fluid under pressure, and being provided with a window, and on the inside, an elongated... | 11/12/1985 |
| 4549108 | Multichannel X-ray detector with multiple electrical feedthrough members In devices having several electrical connections passing through a separation wall, feedthrough is realized by means of a flexible printed tape. The printed tape includes a number of electrical conductors, and is enveloped by a polyimide carrier which con... | 10/22/1985 |
| 4527084 | Radiation counter A radiation counter comprises; electrodes made of nickel base super alloy containing the nickel in the weight ratio exceeding 30% and not exceeding 90% and the chrome, the iron, etc. as the balance; and counter gas in which the argon gas is the chief ingr... | 07/02/1985 |
| 4501989 | Radiation detecting arrangement for counting an ionizing radiation A radiation detecting arrangement for measuring or counting an ionizing radiation contains a compensating filter arrangement which safequards a measurement of the radiation dose which is either independent of the energy, or independent of both the energy ... | 02/26/1985 |
| 4501988 | Ethylene quenched multi-cathode Geiger-Mueller tube with sleeve-and-screen cathode A Geiger-Mueller ("GM") tube containing a noble gas mixture of about 98-99.9% Ne and the remainder Ar, and in addition containing from 2-5% ethylene as the quench gas, provides high stability and high count rates in the temperature range from about -100°... | 02/26/1985 |
| 4475043 | Xenon x-ray detector with tapered plates The leading edge of the plates employed in a high pressure gaseous xenon x-ray detector are tapered so as to be narrower along the edge of the plates nearest to the x-ray source. Xenon x-ray detectors produced in accordance with the present invention exhi... | 10/02/1984 |
| 4409485 | Radiation detector and method of opaquing the mica window An improved particle detection tube including a method for applying a radion transparent electrically non-conductive, opaque to ultraviolet light coating to the mica window of the tube. The coating reduces erroneous counts by preventing arcing between th... | 10/11/1983 |
| 4393306 | Radiation detector Apparatus is provided for detecting radiation such as gamma rays and X-rays generated in backscatter Mossbauer effect spectroscopy and X-ray spectrometry, which has a large "window" for detecting radiation emanating over a wide solid angle from a specimen... | 07/12/1983 |
| 4379248 | Ionization chamber having coaxially arranged cylindrical electrodes An ionization chamber comprises a plurality of cylindrical electrodes which are coaxially arranged, and a casing which holds the cylindrical electrodes in it under the condition allowing the axial shifting of the edges of the cylindrical electrodes but pr... | 04/05/1983 |
| 4360755 | Anode mounting for window type Geiger-Mueller tube To prevent the anode wire which runs along the axis of the tube from vibrng at the end adjacent the window, a ceramic cup has a flat surface sealed to the inside of the window, and the end of the anode wire is captured within an opening of the cup.... | 11/23/1982 |
| 4359661 | Geiger-Mueller tube with tungsten liner A highly sensitive Geiger-Mueller radiation detector with improved temperature stability and working life uses a cathode liner made of tungsten. The liner is resistant to attack by the halogen quench gases which are used in the detector. The method of con... | 11/16/1982 |
| 4354135 | Geiger-Mueller tube with nickel copper alloy cathode A highly sensitive Geiger-Mueller radiation detector with improved temperature stability and working life uses a cylindrical cathode made from a nickel copper alloy preferably containing predominantly nickel. This alloy is resistant to attack by halogen q... | 10/12/1982 |
| 4325001 | Inorganic spark chamber frame and method of making the same A spark chamber frame 8 is manufactured using only inorganic materials. Spark chamber frame 8 includes a plurality of beams 10, 12, 14, and 16 formed from inorganic material, such as ceramic or glass, and are connected together at ends 9 with inorganic bo... | 04/13/1982 |
| 4306155 | Gas-filled x-ray detector with improved window A multicell x-ray detector of the gas-filled ionization type includes a metal body in which the front, rear, end and bottom walls together with a sealed cover define a channel in which there is a row of spaced apart electrode plates which define cells in ... | 12/15/1981 |
| 4302696 | Gamma-ray compensated ionization chamber A gamma-ray compensated ionization chamber having cylindrical multiplex electrodes comprises first cylindrical multiplex electrodes and second cylindrical multiplex electrodes being arranged in reverse orders to that of the first cylindrical multiplex ele... | 11/24/1981 |
| 4289967 | Multianode cylindrical proportional counter for high count rates A cylindrical, multiple-anode proportional counter is provided for counting of low-energy photons ( | 09/15/1981 |
| 4280075 | Device for detecting and locating radiations, and in particular electron releasing phenomea A device for detecting and locating radiations, comprising at least one cathode brought to a first potential with respect to a reference potential in a sealed enclosure, a plurality of threadlike anodes insulated from one another and photosensitive means,... | 07/21/1981 |
| 4264816 | Ionization chamber An ionization chamber has separate drift and detection regions electrically isolated from each other by a fine wire grid. A relatively weak electric field can be maintained in the drift region when the grid and another electrode in the chamber are connect... | 04/28/1981 |
| 4180754 | Geiger-Mueller tube with a re-entrant insulator at opposing sealed ends thereof An improved cylindrical Geiger-Mueller tube with a life at least ten times reater than that heretofore obtainable includes a re-entrant insulator at each end of the tube to support the coaxial anode and to shield the tube ends from the Geiger discharge.... | 12/25/1979 |
| 4158774 | Radiation detector with improved performance characteristics A radiation detector of the gas-filled counter tube type which has a reduced count rate drift. An electrically conductive coating is applied to the interior insulating surfaces in proximity to the anode wire of a gas-filled counter tube structure having a... | 06/19/1979 |
| 4149109 | Location-sensitive proportional counter tube A location- or positionally-sensitive proportional counter tube of high resolution having a trough-shaped cathode in a counting chamber. A resiliently elastic wire forming the anode extends longitudinally through the counting chamber. Suitable fastening a... | 04/10/1979 |
| 4075527 | X-ray detector An improved x-ray or other ionizing radiation detector comprises an array of adjacent cells comprised of alternately disposed oppositely polarized electrodes and guard electrodes and insulators between them. Means are provided for maintaining uniform and ... | 02/21/1978 |
| 4071763 | Electroradiographic device Xonics chambers can normally be used only with comparatively low electrode voltages in the Townsend-plateau region of the discharge where no charge carrier multiplication occurs. The sensitivity is then comparatively low. The sensitivity can be increased ... | 01/31/1978 |
| 4047039 | Two-dimensional x-ray detector array A two-dimensional array of ionization chamber x-ray detector cells comprises a plurality of planar anode assemblies disposed equi-distant between parallel cathode plates in a gas of high atomic number. Each anode assembly comprises a plurality of conducti... | 09/06/1977 |
