Patents Represented by Law Firm Antonelli, Terry & Wands
-
Patent number: 4925600Abstract: Particulate ammonium nitrate for use as an oxidizer in solid propellants or xplosives is, according to a first alternative, produced in that a solid mixture of ammonium nitrate with phase stabilizers, e.g. metal oxides is melted in several small batches housed in spatially separate manner and reactively reacted, the melts of the individual batches are successively atomized by drawing off and the mixture is supplied cyclically to all the batches, the melt particles being solidified in a cooling gas sinking stream. According to another alternative, initially a phase-stabilizing additive in the form of a metalamine complex is reacted in the aqueous phase from metal nitrate and ammonia, dried and mixed with solid ammonium nitrate, the mixture is melted and then atomized by drawing off. In addition, both processes can be combined.Type: GrantFiled: December 14, 1987Date of Patent: May 15, 1990Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.Inventors: Horst Hommel, Hiltmar Schubert
-
Patent number: 4925012Abstract: The present invention describes a device consisting of an endless flat conveyor belt arrangement for the positionally accurate transport of containers wherein the flat conveyor belt arrangement comprises two parallel convex load-bearing surfaces (3). In the conveyance of ferromagnetic containers, such as cans (2), for example, magnets (21, 22) are utilized which pull the cans (2) onto the conveyor belts (1).Type: GrantFiled: May 9, 1988Date of Patent: May 15, 1990Assignee: Prazisions-Werkzeuge AGInventor: August Guntensperger
-
Patent number: 4924699Abstract: A method position measurement in which position about satellite orbits and information about time are received from satellites to determine a position of a point. The method includes a step to calculate a direction in which an error occurs based on positional information of a satellite and a step to determine the position of the point by use of road map information in the direction of the error.Type: GrantFiled: October 13, 1987Date of Patent: May 15, 1990Assignee: Hitachi, Ltd.Inventors: Hiroshi Kuroda, Nobuo Kurihara, Shinichi Sakamoto
-
Patent number: 4925318Abstract: A packing comprising first and second opposed surfaces in a closure area of the packing has profiled portions secured to and extending over each of the opposed surfaces, which profiled portions are adapted to be releasably interengaged to permit connection and disconnection of the opposed surfaces. The profiled portions are each formed integrally with an outer layer of a strip material secured to the associated one of the opposed surfaces. The outer layer of the strip material is formed of a material well suited for forming a peel seal weld with the other opposed surface of the packing, such as a portion of the outer layer of the opposing strip material. The outer layer of each strip material is secured to the one of the first and second opposed surfaces via a base layer of the strip material to which the outer layer is secured by means of a non-peel seal type connection. As a result, the sheet material of the packing, a bag for example, need not be formed of a peel seal weldable material.Type: GrantFiled: November 4, 1988Date of Patent: May 15, 1990Assignee: Schurpack, Inc.Inventor: Leif B. Sorensen
-
Patent number: 4924329Abstract: The present invention relates to a magnetic recording and reproducing device wherein reproduction monitoring can be made directly after recording, and more particularly to a construction of a rotary drum for the same. The magnetic recording and reproducing device includes a single recording channel for n recording magnetic heads, and n reproducing channels for n reproducing magnetic heads. The recording channel is provided either on an innermost circumference side or on an outermost circumference side of a rotary transformer. Since the device has such a reduced number of recording channels, the distance between adjacent channels can be increased and the transmission loss of a reproduction signal can be reduced.Type: GrantFiled: October 18, 1988Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Kenmei Masuda, Kenji Ogiro, Yoshinori Okada, Akihiro Nakajima, Mashanori Kochi, Kazutoshi Konno
-
Patent number: 4924293Abstract: A semiconductor integrated circuit device in which a wiring layer which supplies a predetermined operation voltage to an electronic circuit has a decreased parasitic impedance. The wiring layer is constituted by a first path and a second path that are connected in parallel between a connection pad and the electronic circuit, or a second wiring layer that constitutes an AC loop is formed close to the first wiring layer which supplies the operation voltage, or the above-mentioned two structures are employed in combination.Type: GrantFiled: May 4, 1989Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Yoshikazu Saito, Yoshiaki Yazawa
-
Patent number: 4923658Abstract: A process for the production of homogeneous flat articles of thermoplastic synthetic resins wherein a starting mixture based on thermoplastic synthetic resins is processed into agglomerate or granulated material by a thermal pretreatment above the softening temperature and subsequently, optionally after additional intermediate steps, is mechanically comminuted to a mixture of particles having a random grain size distribution. The mixture of particles is piled continuously onto a conveyor belt to form a uniform layer and is sintered, under the action of heat up to the plasticization of the thermoplastic synthetic resin, into a coherent flat articles and is then press-molded under the effect of pressure and heat.Type: GrantFiled: September 28, 1988Date of Patent: May 8, 1990Assignee: Huels Troisdorf AGInventors: Alexander Hover, Manfred Simon, Richard Weiss
-
Patent number: 4924377Abstract: Address calculation adders and a buffer storages are each independently provided for each operand of an instruction requiring two or more operands. In the translation instruction processing, the address calculations and operand fetch operations on the first and second operands are substantially asynchronously conducted. Consequently, the overhead that takes place one every n second operand fetch operations can be removed by independently and asynchronously performing the address calculations and operand fetch operations by use of a plurality of address adders. Moreover, the circuit for separating and obtaining a byte from the operand buffer can be dispensed with by adopting an operation procedure in which a byte of the first operand is fetched and is stored in temporary store means that supplies the address adder the data stored therein.Type: GrantFiled: December 28, 1984Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Kazunori Kuriyama, Kenichi Wada, Akira Yamaoka
-
Patent number: 4923765Abstract: A magneto-optical recording medium made of a rare-earth-transition metal amorphous film provides a compensation temperature Tcomp of 50.degree.-200.degree. C. or 0.degree. C. or less. This compensation temperature decreases a saturation magnetization Ms during recording, thereby preventing the provision of inverted magnetic domains at the centers of recording domains resulting from the demagnetizing field generated by the strength distribution of laser light, and so improving a carrier-to-noise ratio during reading. In the case of using a Tb-Fe-Co system amorphous film, Tcomp of 50.degree.-200.degree. C. may be give by the composition comprising Tb of 24-30 atomic %, Co of 7-20 atomic % and Fe of the rest, and Tcomp of 0.degree. C. or less may be given by the composition comprising Tb of 18-21.5 atomic %, Co of 8-10 atomic % and Fe of the rest.Type: GrantFiled: January 6, 1989Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Shinji Takayama, Toshio Niihara, Katsuhiro Kaneko, Yutaka Sugita
-
Patent number: 4922869Abstract: A torque controlling apparatus for an internal combustion engine comprises an electric machinery for absorbing torque from the internal combustion engine and/or for imparting torque to the internal combustion engine; a memory unit for storing, in advance, waveform characteristics of torque deviation generated by the engine in the respective operative conditions of the engine; a detector for detecting an operative condition of the engine; and a control unit. The control unit reads out the waveform characteristics of torque deviation, from the memory unit, corresponding to the detected operative conditions of the engine detected by the detector. The control unit controls the electric machinery to generate countertorque on the basis of the read-out waveform characteristics to cancel the torque deviation.Type: GrantFiled: April 17, 1989Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Yuzo Kadomukai, Makoto Yamakado, Yozo Nakamura
-
Patent number: 4923305Abstract: A water bath shaker apparatus including a drive mechanism for producing a shaking motion and equipped with a tube for accommodating water, and a shelf having secured thereto a container of liquid to be shaken such as, for example, Erlenmeyer flasks. The tub has a filling zone for the water bath in the form of a closed ring with a central passage for the drive shaft of the drive mechanism, with the shelf being essentially constructed as a circular ring and being mounted at the upper end of the drive shaft so as to be driven by the drive shaft.Type: GrantFiled: August 15, 1988Date of Patent: May 8, 1990Assignee: Infors GmbHInventor: Alexander Hawrylenko
-
Patent number: 4923829Abstract: Composite ceramic materials and a method of the same are disclosed, in which a ceramic material mainly containing silicon nitride, and at least one compound selected from a group consisting of nitrides, carbides, borides, silicides, oxides and oxynitrides of elements belonging to IIIa, IIIb, IVa, IBb, Va, VIa and VIII are combined to form a sintered body, and particles and whiskers of the ceramic material and compound are interlocked with each other and fixed so that the sintered body has a porosity of 5 to 30%. In the above composite ceramics, the particle of the compound are coupled with each other through the whisker or particle of the ceramic material. Accordingly, the composite ceramics are small in charge rate of size due to sintering, and are excellent in tenacity, heat resisting property and thermal shock resisting property. Further, the resistivity of the sintered body can be varied by changing the mixture ratio of ceramic material and compound.Type: GrantFiled: February 17, 1989Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Yoshiyuki Yasutomi, Yasuo Matsushita, Kousuke Nakamura
-
Patent number: 4924373Abstract: Disclosed is an apparatus and method for controlling switching elements (51-56) of a PWM-controlled value type inverter by a software program using a microcomputer (10). The control apparatus of the present invention produces a switching element control signal (an on/off signal) according to the following steps. When a control command value commanding the output of the inverter is determined, a control mode corresponding to the commanded output value is selected from among a plurality of control modes (M1-M6) previously contained in a table to determine the switching elements to which the control signal is applied and the order of controlling the switching elements. Further, on the basis of the control command value, the difference between a modulation signal and a predetermined reference value is computed for each phase to determine the timing of controlling the switching elements.Type: GrantFiled: January 19, 1989Date of Patent: May 8, 1990Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Hiromi Inaba, Kiyoshi Nakamura, Akira Kimura, Sadao Hokari, Naoyuki Oouchi
-
Patent number: 4923962Abstract: A resin material for optical instruments comprising a polycarbonate having the repeating units represented by the following general formula: ##STR1## wherein X represents ##STR2## has an extremely small birefringence particularly to oblique-incident lights.Type: GrantFiled: October 12, 1988Date of Patent: May 8, 1990Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuyoshi Shigematsu, Shigenori Shirouzu, Shuji Sakamoto, Toshiyasu Suzuki
-
Patent number: 4924432Abstract: The dot data to be displayed is divided and stored in an even address graphic memory and an odd address graphic memory. When data to be revised (refreshed) bridges over adjacent word units having different addresses, the CPU generates the word address of the odd address graphic memory and new dot data to be displayed. A peripheral control circuit generates the word address signal and an address signal of the adjacent address of the even address graphic memory so as to revise the dot data which bridges over two word addresses. In this way, the dot data which bridges over two addresses can be revised by only one access operation to the memory.Type: GrantFiled: March 27, 1987Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Nobuteru Asai, Yasuo Sakai, Kazuo Miyazaki
-
Patent number: 4924224Abstract: An A/D converter comprises a D/A conversion circuit, a sample-holding circuit which samples and holds the output signal of the D/A conversion circuit, a substraction circuit which performs subtraction for the output signal of the D/A conversion circuit and the output signal of the sample-holding circuit, a subtracting-amplifying circuit which performs subtraction for the output signal of the substraction circuit and the input analog signal and amplifies the result of subtraction, a switch circuit which blocks the input analog signal to the subtracting-amplifying circuit, and an A/D conversion circuit which performs A/D conversion selectively for the input analog signal or the output signal of the subtracting-amplifying circuit.Type: GrantFiled: October 5, 1988Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Kenichiro Takahasi, Yukichi Ueno
-
Patent number: 4924479Abstract: A communication control system arranged between a plurality of terminal apparatuses and a host processing unit in order to transmit and receive signals based on an NRZI coding system between them by way of a half duplex communication system, a "0" bit detecting circuit for detecting the "0" bit of a one-bit length is provided in the communication control system and the sending and receiving modes are automatically switched in accordance with the output of this detecting circuit.Type: GrantFiled: August 10, 1987Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Hideki Iwao, Michio Kato, Shuichi Yamano
-
Patent number: 4922857Abstract: Dry feeding of minks if usually effected by means of self feeding dispensers, from which the animals may eat freely and as desired. In connection with the invention it has been found that the animals thrive considerably better if they are feeded by measured small fodder portions some 6-8 times per 24 hours and noticeably mostly during the evening and night hours. For avoiding costs of manual attendence during these hours an associated automatic feeding system is used, comprising automatically operated dispensers in the single cages.Type: GrantFiled: October 27, 1988Date of Patent: May 8, 1990Inventor: Mogens Arentoft
-
Patent number: 4922559Abstract: A public sanitary cubicle comprises a sanitary room with a water closet accessible through an outer door and a cleaning room separated therefrom by a partition and which contains the means necessary for the supply, disposal and cleaning of the sanitary room, particularly a cleaning appliance which can be brought up to the water closet after moving away the partition or part thereof and a drain connected to the water closet. For improving and facilitating cleaning work, the water closet has a substantially flat base with a rear drainage edge and which is inclined from the sanitary room to the partition, as well as a rear wall formed by the partition or its movable part, the drain being located in the cleaning room in the vicinity of the partition below the drainage edge of the base of the water closet and is exposed by moving away the partition or its movable part.Type: GrantFiled: October 11, 1988Date of Patent: May 8, 1990Inventor: Hans Wall
-
Patent number: D307740Type: GrantFiled: August 22, 1986Date of Patent: May 8, 1990Assignee: Hitachi, Ltd.Inventors: Masato Shibayama, Kazuyuki Tsuburaya, Michiaki Kotsuka, Takayuki Oshiga, Katsuhiro Fujiwara