Patents Represented by Law Firm Lowe, King, Price and Becker
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Patent number: 4555717Abstract: An ink jet printing head comprises a laminar airflow chamber having a front channel through a combined stream of air and ink droplets is discharged toward a writing surface, and a rear channel provided through an insulative plate and axially aligned with the front channel connected to a source of liquid. The chamber is further provided with an air intake connected to a pressurized air supply source for directing an airstream to a point between the front and rear channels so that the airstream makes a sharp turn at the entry into the front channel with the result that a sharp pressure gradient is produced in the liquid discharge path. A first electrode is provided around said front channel and second electrode is provided on a rear side wall of said insulative plate around said rear channel.Type: GrantFiled: June 16, 1983Date of Patent: November 26, 1985Assignee: Matsushita Electric Industrial Company, LimitedInventors: Masayoshi Miura, Hiroshi Naito
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Patent number: 4554425Abstract: A contact of a vacuum interrupter and a manufacturing process therefor are disclosed. The contact can greatly reduce the chopping current of the interrupter, can greatly increase the dielectric strength thereof and can improve the large- and small-current interrupting capabilities thereof. The contact is made of a material containing 29 to 74 weight % copper, 15 to 60 weight % chromium, 10 to 35 weight % iron, 0.5 to 15 weight % carbon and 0.5 to 15 weight % silicon. The process contains the steps of producing a porous matrix by sintering a mixture of all of the elements except copper under a nonoxidizing atmosphere, impregnating the matrix with copper and machining the resultant material.Type: GrantFiled: September 7, 1984Date of Patent: November 19, 1985Assignee: Kabushiki Kaisha MeidenshaInventors: Yoshiyuki Kashiwagi, Yasushi Noda, Kaoru Kitakizaki
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Patent number: 4554488Abstract: In a deflecting yoke of an in-line type color picture tube, a pair of saturable reactors responsive to vertical deflection is connected to the horizontal deflecting coils so that horizontal deflection currents respectively flowing two horizontal deflecting coils are controlled differentially in accordance with the degree of the vertical deflection, thereby minimizing raster distortion. Each of the saturable reactors may comprise a series connection of two coils connected to the vertical deflecting coils, and another series connection of two coils connected to the horizontal deflecting coils. The first-mentioned series connection may be omitted by positioning the second-mentioned series connection so that leakage flux from the vertical deflecting coils can be picked up. The core or cores of each of the saturable reactors is magnetically biased by means of a permanent magnet.Type: GrantFiled: June 11, 1982Date of Patent: November 19, 1985Assignee: Victor Company of Japan, LimitedInventors: Toshio Kobayashi, Hideo Hishiki
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Patent number: 4554087Abstract: The present invention relates to a metal processing lubricant comprising a cationic compound obtained by neutralizing a condensation product between a specific aliphatic dicarboxylic acid and a specific aliphatic basic nitrogen compound with a phosphorus oxy acid or a derivative thereof.The lubricant of the present invention is water-soluble and excellent in lubricating property, and the change of the lubricating property is slight and degradation of the oiling component is reduced. Accordingly, the industrial value of the lubricant of the present invention is very high.Type: GrantFiled: January 25, 1985Date of Patent: November 19, 1985Assignees: Nippon Kokan Kabushiki Kaisha, Yushiro Chemical Industry Co., Ltd.Inventors: Iwane Chiba, Junji Fujiwara, Hiroshi Kuwamoto, Tomoya izushi, Toshimi Muto, Haruji Toyama
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Patent number: 4553988Abstract: A high-temperature furnace comprising a gas burner (2) for burning a mixture of air and fuel in a combustion chamber (1), and an oxygen enricher (4). The enricher comprises a plurality of cells (13a) each comprising a pair of spaced apart oxygen permeable membranes (14), and a suction fan (12) for drawing air through the spaces between the cells (13a). The cells (13a) are coupled by a manifold (13b) to a vacuum pump (18) which causes the oxygen molecules of the air to pass through the membranes to increase the oxygen content of the air in the cells (13a), the oxygen-enriched air being drawn by the suction pump (18) to the burner (2). Preferably, a heat exchanger (31) is provided for transferring thermal energy of the emissions from the combustion chamber (1) to the air drawn by the suction fan (12) to maintain the oxygen concentration constant for a given operating condition of the combustion chamber.Type: GrantFiled: November 22, 1982Date of Patent: November 19, 1985Assignees: Matsushita Electric Industrial Company, Limited, Osaka Gas Co., Ltd.Inventors: Shoji Shimizu, Shirow Asakawa, Yukihiro Saito, Yoshimasa Ito
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Patent number: 4554498Abstract: The present invention relates to an apparatus for controlling a moving object and particularly for automatically stopping the moving object in a predetermined position and direction. The apparatus comprises a pair of photoelectric sensors having a light emitting element and a light receiving element for the moving object, and a pair of reflectors at predetermined positions opposing the photoelectic sensors. The moving object is stopped when the received light outputs of the photoelectric sensors are balanced with each other preferably in a vehicle in an automated factory.Type: GrantFiled: October 20, 1982Date of Patent: November 19, 1985Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kunio Fujiwara, Hisashi Katoo, Fumihide Satoo, Hirokazu Taki
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Patent number: 4553630Abstract: A speaker with a tweeter angle adjusting device, including a woofer; a horizontal shaft supported on the woofer horizontally and rotatably; a horizontal adjusting knob disposed in parallel with and in the same rotating direction as the horizontal shaft, the horizontal adjusting knob being connected to the horizontal shaft through an interlocking mechanism; a tweeter; a tweeter housing which is secured to the horizontal shaft and which supports the tweeter through a vertical shaft rotatably in a direction perpendicular to the horizontal shaft; and a vertical adjusting knob connected to the tweeter through an interlocking mechanism to rotate in the same direction as the tweeter and journalled in a direction perpendicular to the horizontal shaft. The tweeter direction changing operation can be done easily and accurately because the tweeter shifts in the same directions as the turning directions of the horizontal and vertical adjusting knobs.Type: GrantFiled: January 17, 1985Date of Patent: November 19, 1985Assignee: Pioneer Electronic CorporationInventor: Tomiaki Ando
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Patent number: 4554646Abstract: A memory matrix is segmented in the direction of columns into a plurality of groups of memory cells. The memory cells are accessible through respective preceding word lines each of which is provided for each of the rows of the matrix and commonly to all of the groups of the memory cells and group word lines each of which is provided per group and per row, so that a path for column current is set up during access time only in the column which belongs to a particular group including a particular memory to be accessed.Type: GrantFiled: October 17, 1983Date of Patent: November 19, 1985Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masahiko Yoshimoto, Tsutomu Yoshihara, Kenji Anami, Hirofumi Shinohara
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Patent number: 4552803Abstract: Fire retardant compositions in the form of a powder are produced from the following components:______________________________________ Component Parts by Weight ______________________________________ Aldehyde 70-140 Ammonium phosphate 50-250 Ammonium, alkali metal or 50-250 alkaline earth metal compound or salt Urea reactant 70-190 Hydroxy reactant 20-60 Phosphoric acid 150-250 ______________________________________Also provided are retardant compositions containing the powder and methods for treating substrates, such as paper or wood, as well as cotton, wool, and synthetic textiles to impart fire retardant properties thereto.Type: GrantFiled: August 21, 1984Date of Patent: November 12, 1985Inventor: Glenn A. Pearson
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Patent number: 4553264Abstract: In a double superheterodyne tuner, the first local oscillator frequency is set to a value higher than the first intermediate frequency, which is set to a value between three and five times the upper limit of the receiving frequency range. With this arrangement spurious signals of at least third or less order can be prevented from occuring in the first intermediate frequency range. The tuner comprises an input filter which attenuates interference signals whose harmonics equal a desired frequency. The second intermediate frequency may be selected such that it is obtained by subtracting the second local oscillator frequency from the first intermediate frequency which is higher than the second local oscillator frequency. As a bandpass filter for passing the first intermediate frequency may be used a coaxial dielectric filter so as to reduce interferences by undesired channel signals.Type: GrantFiled: September 19, 1983Date of Patent: November 12, 1985Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Makoto Hasegawa, Hiroshi Ohnishi, Sadahiko Yamashita
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Patent number: 4551966Abstract: Information storage mediums such as video discs are picked up by a pickup device and transferred one at a time to a storage position in which the video disc is placed on a disc rest. Casings stocked in a stocker are pushed one at a time by a casing pusher to the storage position. The casing is supported by a casing holder mechanism, retracted away from the storage position to allow the disc to be supported on the rest, and then displaced toward the storage position to let the disc be inserted into the casing supported on the holder mechanism. A completed assembly of the disc and casing is temporarily stocked, and a predetermined number of such stocked assemblies are discharged onto a discharge conveyor.Type: GrantFiled: June 8, 1982Date of Patent: November 12, 1985Assignee: Victor Company of Japan, LimitedInventors: Shigeyuki Aoyagi, Mamoru Watanabe
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Patent number: 4552543Abstract: A torsionally elastic coupling includes a pair of load first and second coupling plates capable of twisting relative to each other by means of a motion-changing link connected to one of the plates, a coupling link connected to the motion-changing link and a spring link coupled to the coupling link. The coupling link is connected to a bearing plate which, when the first and second coupling plates are twisted with respect to one another, is pulled radially inward to act upon the spring link so that a high degree of softness in twisting is achieved by the bearing plate acting as a centrifugal weight.Type: GrantFiled: September 11, 1984Date of Patent: November 12, 1985Assignee: WOCO Franz-Josef Wolf & Co.Inventors: Franz J. Wolf, Hubert Pletsch
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Patent number: 4553139Abstract: A vacuum monitor for a vacuum interrupter which can detect poor vacuum pressure at high detection sensitivity from the outside of the interrupter, on the basis of the impulsive electromagnetic wave signals generated when vacuum pressure increases within the vacuum interrupter. The vacuum monitor according to the present invention comprises, in particular, a detector terminal of capacitor coupler type or inductor coupler type disposed near a high voltage conductor for receiving impulsive electromagnetic wave signals, a signal level discriminating section, and a diagnosis section for improving the reliability of the monitor, particularly when the detected signal level of the electromagnetic wave signals is low.Type: GrantFiled: June 22, 1983Date of Patent: November 12, 1985Assignee: Kabushiki Kaisha MeidenshaInventors: Shuzo Tanigaki, Masayuki Sakaki
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Patent number: 4550695Abstract: A fan device is provided with a brake which uses a temperature responsive coil made of a shape memory alloy. The brake anchors the rotation of a fan blade when the temperature responsive coil assumes an extended shape where it urges a brake element into a brake apply position.Type: GrantFiled: April 27, 1984Date of Patent: November 5, 1985Assignee: Nissan Motor Company, LimitedInventors: Yasuyuki Kikuchi, Eiichi Matsumoto, Yoshimasa Tanaka
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Patent number: 4550797Abstract: A loudspeaker diaphragm comprising a molded, sintered ceramic body is described. The body is made of ceramic crystalline particles whose maximum size is below 1/5 time a thickness of the body which is in the form of a dome or cone. The dome- or cone-shaped diaphragm may have a flange along an opening side thereof in order to prevent deformation as may occur during firing.Type: GrantFiled: January 17, 1984Date of Patent: November 5, 1985Assignees: Victor Company of Japan, Mitsubishi Mining & Cement Co., Ltd.Inventors: Kiyoaki Suzuki, Hidetsugu Suzuki, Katsuhiro Onuki, Isami Nomoto, Yoshiaki Fukuda, Takeshi Sato
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Patent number: 4550465Abstract: An apparatus for picking up surface litter on the ground includes a movable main frame towed by a lightweight vehicle. A roller carriage pivotally attached to the main frame supports identical front and rear oppositely rotating tandem rollers each having ground engaging rows of resilient fingers. The rollers are driven by a ground engaging drive wheel and sprocket gear arrangement. The resilient fingers spread apart to entrap litter and mesh between the rollers to transfer litter downstream, to a main frame conveyor for containment within a trash drum. A pair of wiper blades completely dislodge litter entrapped between the roller fingers and cooperate with upper portions of each roller to define a transfer path towards the conveyor. In a second embodiment, the trash drum is pivotally secured to the main frame to control the height of the drum discharge opening. In a third embodiment, a rectangular, box-like main frame is supported by a rear panel door of a dump truck.Type: GrantFiled: March 8, 1983Date of Patent: November 5, 1985Inventor: Barney D. Chrisley
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Patent number: 4551213Abstract: Gold values are recovered from mixtures thereof contained with sulfur, especially mixtures obtained from the hydrometallurgical processing of copper. The process comprises the following steps:(a) forming an aqueous suspension of the mixture containing the gold and sulfur values;(b) adjusting the chloride concentration of the suspension so that the suspension contains at least about 12 weight percent of chloride;(c) maintaining the oxidation reduction potential of the mixture in the range of about 650-750 millivolts;(d) adding cupric chloride or ferric chloride, if not already present in the mixture, in sufficient amounts to cause the gold contained in the mixture to dissolve into the solution; and(e) recovering the gold from the solution in an electrolytic cell, or by reaction with carbon.Type: GrantFiled: May 7, 1984Date of Patent: November 5, 1985Assignee: Duval CorporationInventor: Alex T. Wilson
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Patent number: 4550223Abstract: A test device for remotely locating faults in a two-lead line, such as a telephone subscriber loop, comprises a first dipole having terminals connected between the two line leads. The dipole comprises a capacitor series connected with a resistor for locating cut-offs in the line. A second dipole is series connected to one of the line leads, or two dipoles are series connected to the two lines for locating short-circuits in the line. The second dipole has a predetermined relatively high resistance in a low-current region and a lower resistance in a higher current region and may include a negative temperature-coefficient thermistor, or two oppositely poled diodes, or one diode, or a relay having a coil connected in series with a resistor shunted by a make contact of the relay.Type: GrantFiled: March 8, 1982Date of Patent: October 29, 1985Inventor: Jean-Pierre R. Poitevin
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Patent number: 4550403Abstract: A signal in HDBn code is transmitted with an auxiliary binary signal having a lower bit-rate on a digital transmission line. The HDBn code signal comprises predetermined sequences each including n+1 elements, n-1 central elements being zeros and a last element being a bipolarity violation mark. In each sequence of the HDBn code signal transmitted during each of binary elements of the auxiliary signal having a predetermined binary state, a bipolar mark in the sequence is permutated with a zero element having a predetermined rank in the sequence to derive an encoded sequence. The HDBn code signal is an information signal in the transmission line and the auxiliary signal can be a signal for remotely locating the repeater in the line from a monitoring end equipment of a monitoring system or for indicating performance factors of the repeaters, such as error rates, to the monitoring equipment.Type: GrantFiled: March 29, 1983Date of Patent: October 29, 1985Assignee: Societe Anonyme de TelecommunicationsInventor: Claude P. Beynie
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Patent number: 4550338Abstract: A detecting circuit comprises a synchronous detecting circuit (11, 12, 15 to 19, 22 and 27 to 29) and a switching transistor (35). The collector and the emitter of the transistor (35) are connected to junctions (A) and (B), respectively, of the synchronous detecting circuit. The input portion (11) of the synchronous detecting circuit is connected to receive a signal to be detected and the input portion (12) of the same is connected to receive a carrier wave. The base of the transistor (35) is connected to receive a switching signal. The synchronous detecting circuit performs a detecting operation when the switching signal assumes the low level; however, the transistor (35) is turned on when the switching signal assumes the high level so that the junctions (A) and (B) are short-circuited, whereby the synchronous detecting circuit does not perform a detecting operation. Accordingly, the detecting circuit can be switched with a simple circuit configuration.Type: GrantFiled: February 23, 1983Date of Patent: October 29, 1985Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Kenji Kojima