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公开(公告)号：US3718065A
公开(公告)日：1973-02-27
申请号：US3718065D
申请日：1970-12-24
Applicant: IIT RES INST
Inventor： LIBER T
Abstract: A bolt having a shank and integral head has a strip of photoelastic material mounted in the head for manifesting in the form of photoelastic fringes linearly related to bolt tension the bending stresses created in the head during loading of the bolt. To determine the tension in the bolt during or after loading, polarized light is directed toward the photoelastic strip and reflected light from the strip is analyzed to measure fringe order. The fringe order is related to the amount of bending stresses in the head of the bolt by a predetermined calibration curve, the bending stresses being linearly related to bolt tension.
Abstract translation: 具有柄和整体头部的螺栓具有安装在头部中的光弹性材料条，以呈现与在螺栓加载期间在头部产生的弯曲应力的螺栓张力线性相关的光弹性条纹的形式。 为了确定在装载期间或装载后螺栓的张力，偏振光被引向光弹性带，并且分析来自条带的反射光以测量条纹顺序。 边缘顺序通过预定的校准曲线与螺栓头部中的弯曲应力的量相关，弯曲应力与螺栓张力线性相关。
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公开(公告)号：US3713212A
公开(公告)日：1973-01-30
申请号：US3713212D
申请日：1970-11-18
Applicant: IIT RES INST
Inventor： CAMRAS M
CPC classification number: G11B5/127 , Y10T29/49034 , Y10T29/49066 , Y10T29/49078
Abstract: A method of making a magnetic transducer head or element thereof from a binary alloy of silicon and iron, preferably containing from about 3 percent to 7 percent of silicon by weight, including provision of a grain-oriented silicon-iron core, annealing the core at a temperature above the Curie point in a dry hydrogen atmosphere and during cooling from that temperature subjecting the core piece to a magnetic field applied in the direction of the working flux at the core. The annealed core piece is formed so as to provide a gap-defining face for coupling to a magnetic record medium, the gap being of the order of about 1 micron.
Abstract translation: 一种从硅和铁的二元合金制造磁性换能器头或其元件的方法，优选地含有约3％至7％的硅，包括提供晶粒取向的硅铁芯，将芯退火 在干燥氢气氛中高于居里点的温度，并且在从该温度冷却的过程中，使芯片沿着在芯处的工作焊剂的方向施加的磁场。 退火的芯片形成为提供用于耦合到磁记录介质的间隙限定面，间隙约为1微米。
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公开(公告)号：US3686436A
公开(公告)日：1972-08-22
申请号：US3686436D
申请日：1969-12-30
Applicant: IIT RES INST
Inventor： CAMRAS MARVIN
CPC classification number: H04N5/9205 , H04N5/84
Abstract: Method and apparatus for transducing a plurality of video signals on a record medium by interlacing recorded fields of different signals along a channel, and using a series of scanners or a scanner with shiftable scanning beam for repeatedly reproducing each recorded field, or using a scanner and a repeater device to reproduce and repeat each recorded signal, and thus provide for display of a continuous sequence of fields, while using much less record medium for a given program.
Abstract translation: 用于通过沿通道交错记录的不同信号的场，以及使用一系列具有可移位的扫描光束的扫描仪或具有可重复地再现每个记录场的扫描仪，或者使用扫描器和/或扫描仪，来在记录介质上传送多个视频信号的方法和装置， 中继器装置，用于再现和重复每个记录的信号，并因此提供连续的字段序列的显示，同时为给定的程序使用少得多的记录介质。
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公开(公告)号：US3681526A
公开(公告)日：1972-08-01
申请号：US3681526D
申请日：1964-02-11
Applicant: IIT RES INST
Inventor： CAMRAS MARVIN
CPC classification number: H04N5/7822 , G11B5/127 , H04N5/775 , H04N5/782 , H04N5/921
Abstract: A video transducer system comprising a magnetic head having a magnetic core with a loop magnetic signal flux path including a scanning gap, and a magnetic record medium coupled to the core at the scanning gap.
Abstract translation: 一种视频传感器系统，包括具有磁芯的磁头，磁芯具有包括扫描间隙的环路磁信号通路，以及在扫描间隙处耦合到磁芯的磁记录介质。
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公开(公告)号：US3676721A
公开(公告)日：1972-07-11
申请号：US3676721D
申请日：1970-08-28
Applicant: IIT RES INST
Inventor： HEUVEL ANTHONY P VAN DEN , RICHTER RONALD W , JOSHI SHRINIVAS G
CPC classification number: H03H9/14502
Abstract: A transducer for generating and detecting surface elastic waves in a piezoelectric material may include a metalic grating on the material forming one electrode of the transducer and a counterelectrode separated from the grating by a dielectric layer.
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Patent Agency Ranking
公开(公告)号：US3596008A
公开(公告)日：1971-07-27
申请号：US3596008D
申请日：1967-06-27
Applicant: IIT RES INST
Inventor： CAMRAS MARVIN
Abstract: Monochrome and color television recording and playback circuitry for coupling with a standard broadcast receiver. Recording signals supplied to the recording head without further amplification, and with circuitry for maintaining a good visual display during recording, and circuitry for phase correction and pulse modification. Playback circuitry for reduced thermal noise, phase correction and improved response. Frequency modulation sound on video track.
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公开(公告)号：US3588623A
公开(公告)日：1971-06-28
申请号：US3588623D
申请日：1968-08-07
Applicant: IIT RES INST
Inventor： CAMRAS MARVIN
CPC classification number: G11B5/0245 , H01F13/006
Abstract: A PORTABLE BULK DEMAGNETIZER HAVING A SHAFT RECEIVING A REEL OF MAGNETIC TAPE WHICH IS ROTATED TO MOVE SUCCESSIVE RADIAL SEGMENTS OF THE TAPE THROUGH AN ALTERNATING POLARITY MAGNETIC FIELD, THE SHAFT BEING PROGRESSIVELY MOVED AXIALLY TO MOVE THE RECORD MEDIUM AWAY FROM THE MAGNETIC FIELD SOURCE WITH SUFFICIENT UNIFORMITY TO EFFECTIVELY DEMAGNETIZE THE TAPE.
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公开(公告)号：US3564154A
公开(公告)日：1971-02-16
申请号：US3564154D
申请日：1964-03-09
Applicant: IIT RES INST
Inventor： CAMRAS MARVIN
IPC: G11B5/49 , G11B11/10 , G11B11/115 , H01J29/10 , H01J31/08 , H04N5/78 , H04N5/782 , G11B5/32 , H01J31/04 , H04N1/24
CPC classification number: G11B5/4907 , G11B11/10 , G11B11/115 , H01J29/10 , H01J31/08 , H04N5/7805 , H04N5/782
Abstract: An electron beam head for reproducing magnetically recorded video signals wherein magnetic fields from the record medium are channeled to the interior of the envelope to deflect the primary electrons transversely to the scanning direction of the beam. In one embodiment, the sensing electrodes are at opposite sides of the magnetic field region at an end wall of the envelope, while in another embodiment the primary electron beam passes through the openings in a grid of magnetic wires so as to interact with the magnetic fields therebetween, electrostatic deflecting means serving to deflect the electron beam through a substantial angle as it leaves the grid so as to impinge on sensing electrodes remote from the grid. In a third embodiment, secondary electrons are conducted into a branch tube extending from the main envelope and a single electrode senses the degree of deflection of the secondary electrons by the magnetic fields permeating the secondary emission region.
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公开(公告)号：US3557293A
公开(公告)日：1971-01-19
申请号：US3557293D
申请日：1969-05-19
Applicant: IIT RES INST
Inventor： KASHIN PHILIP , LINFIELD WARNER M
IPC: A01N9/20
CPC classification number: A61K31/135 , Y10S514/919
Abstract: AN INSECT REPELLENT CONTAINING AN ORGANIC COMPOUND WHICH IS BELIEVED TO OPERATE VIA NEUROINHIBITION AND A LIQUID CARRIER WHICH IS A SOLVENT FOR THE COMPOUND. THE COMPOUND IS AN AMINO-ALDEHYDE HAVING A CARBON CHAIN NOT LONGER THAN 15 CARBON ATOMS, ACYCLIC OR CARBOCYCLIC, SATURATED OR UNSATURATED, SUBSTITUTED OR UNSUBSTITUTED. SPECIFIC EXAMPLES INCLUDE 2-AMINO-BENZALDEHYDE, 4-AMINOBUTYRALDEHYDE, AMINOACETALDEHYDE AND (DIETHYLAMINO) ACETALDEHYDE.
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10.发明授权Signal compression or expansion sysstem using variable azimuth magnetic recording 失效使用可变AZIMUTH磁记录信号压缩或扩展系统
公开(公告)号：US3527898A
公开(公告)日：1970-09-08
申请号：US3527898D
申请日：1965-08-16
Applicant: IIT RES INST
Inventor： CAMRAS MARVIN
CPC classification number: H04B1/662 , G11B20/00007
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