baber/WOPTO huggingface dataset:
Patent CA-1316702-C (CA)
Title: Apparatus for the generation of pressure pulses in drilling mud compositions
Inventor: FELD DAGOBERT
IPC: E21B47/18
Filed: 1988-05-06
Granted: 1993-04-27
Abstract: ABSTRACT OF THE INVENTION      The apparatus for the generation of pressure pulses in a drilling mud composition which flows downward in a drill string (1) is composed of a valve (V) inside the drill string (1), with a stationary, braced, pipe-shaped exterior part (3), pipe-shaped primary valve (4) which can be translated from a lower starting position against the flow direction (2) of the drilling mud composition into an upper operational end position, a stationary, pipe-shaped support (5) in a coaxial position inside primary valve (4), an auxiliary valve (13) and (14) actuated by motor means (15).  Exterior part (30) and primary valve (4) delimit a constricted segment (29) whose flow cross section can be modified by the position of primary valve (4), and primary valve (4) and the support (5) surround an interior flow channel (21), (12) and (10), and outlet orifice (13) of auxiliary valve (14) can be opened and closed.  The sum of the downward hydraulic forces and the gravitational forces in the drilling mud composition acting on the primary valve in its starting position when auxiliary valve (13) and (14) is open exceeds the upward hydraulic forces, and these force relations can be reversed by closing auxiliary valve (13) and (14).  In the operational end position of primary valve (4), the sum of all forces acting on primary valve (4) is equal to zero, and primary valve (4) is suspended without contact in the drilling mud composition (Figure 4).     EASD:032/C4
Patent CA-1288815-C (CA)
Title: System for detecting and processing abnormality in electromagnetic shielding
Inventor: TAKAHASHI TAKESHI
IPC: G01R23/00
Filed: 1988-05-18
Granted: 1991-09-10
Abstract: ABSTRACT Disclosed is a system for detecting and processing an abnormality in electromagnetic shielding for use in an intelligent building which is constructed using an electromagnetic shielding material for the skeleton and openings such as windows and doorways so that the whole of the building is formed into an electromagnetic shielding structure in order to carry out radio communication inside the building.  The system has radio wave detecting means for detecting an external radio wave inside the building, level judging means for judging the level of an external radio wave detected by the radio wave detecting means, and processing means for detecting and processing an abnormality on the basis of an output from the level judging means, whereby an abnormality in the electromagnetic shielding performance is detected on the basis of the intensity level of a detected radio wave intruding into the building from the outside. When the electromagnetic shielding performance has deteriorated, external radio waves such as broadcast waves, telecast waves, etc. intrude into the building. Therefore, any of these radio waves is constantly monitored by the radio wave detecting means inside the building. Thus, when the electromagnetic shielding performance has considerably deteriorated, the abnormality can be detected by judging the level of the detected radio wave with the level judging means.  Accordingly, it is possible to conduct an appropriate processing by the processing means on the basis of the result of the detection.
Patent CA-1339136-C (CA)
Title: Amorphous form of aztreonam
Inventor: VARIA SAILESH AMILAL
IPC: C07D417/12
Filed: 1988-06-28
Granted: 1997-07-29
Abstract: The non-crystalline, amorphous form of [3S-[3.alpha.(Z),4.beta.]]-3[[2-amino-4-thiazolyl [1-carboxy-1-methylethoxy)imino]acetyl] amino]-4-methyl-2-oxo-1-azetidinesulfonic acid and its pharmaceutically acceptable salts is prepared.
Patent CA-1292282-C (CA)
Title: Optical communication systems using fabry-perot cavities
Inventor: STONE JULIAN
IPC: G01J3/26
Filed: 1988-07-14
Granted: 1991-11-19
Abstract: OPTICAL COMMUNICATION SYSTEMS    USING FABRY-PEROT CAVITIES            Abstract This invention is a new type of Fabry-Perot cavity, and an optical communication system using such a cavity. The inventive Fabry-Perot cavity comprises both a waveguiding portion and a nonwaveguiding portion. In this manner, tunable cavities of desirable mid-range length, necessary to obtain required free spectral ranges, may be fabricated with minimal diffraction lossesotherwise associated with cavities of such length. The cavity length may be varied using, for example, piezoelectric elements, and the various cavity elements may be aligned and connected, using fiber connector technology.
Patent CA-1305513-C (CA)
Title: Procede de fabrication d'un parafoudre et parafoudre obtenu par ce procede
Inventor: THUILLIER DENIS
IPC: H01T1/16
Filed: 1988-08-05
Granted: 1992-07-21
Abstract: Procédé de fabrication d'un parafoudre et parafoudre obtenu par ce procédé. Le parafoudre comprend un empilement de pastilles en oxyde de zinc et d'entretoises tubulaires entre deux ferrures extrêmes. Cet ensemble est enveloppé d'un enroulement filamentaire assurant un frettage radial sans compression axiale, avec une adhérence sur les surfaces latérales de tous les éléments de l'empilement.
Patent CA-1341255-C (CA)
Title: Therapeutic compositions against sterptococcal infections, transformed hosts, methods of immunization and genetically engineered products
Inventor: KEHOE MICHAEL A
IPC: A61K39/09
Filed: 1988-08-22
Granted: 2001-06-19
Abstract: Non-virulent bacteria are disclosed into which have been cloned heterologous nucleotide sequences encoded for the expression of Streptococcal M protein antigens, which are effective to elicit opsonic antibodies against Streptococcal infections. These bacteria are useful for vaccination against Streptococcus pyogenes bacteria.
Patent CA-1337217-C (CA)
Inventor: FREEMAN DANIEL KENNETH
IPC: G10L19/107
Filed: 1988-08-25
Granted: 1995-10-03
Abstract: Speech is analysed to derive the parameters of a synthesis  filter  and  the  parameters  of  a  suitable excitation, selected from a codebook of excitation frames.          The  selection of  the codebook entry  is  facilitated by determining  a  single-pulse  excitation  and  (eg.  using conventional "multipulse" excitation techniques) and using the position of this pulse to narrow the codebook search.          The codebook entries can be subject to the limitation that some entries are rotationally shifted versions of other entries.
Patent CA-1322145-C (CA)
Title: Non-return valve for supply cocks
Inventor: GIACOMINI MARCO
IPC: F16K15/14
Filed: 1988-09-02
Granted: 1993-09-14
Abstract: Abstract A non-return valve for supply cocks, comprising an integral cup-shaped valve body     accommodating a substantially rigid washer      forming a seal with res-pect to the supply cock     and having flow apertures , as well as a flexible membrane      located under-neath and self-positioning, during closure, against the said substantially rigid washer      so as to close the said flow apertures      of the same (14) and move away from the said flow apertures      under the pressure of the water supplied.  The substantially rigid washer and the flexible membrane      may advantageously be joined together so as to form a composite washer The valve     proposed has a small number of components and can be very easily assembled.  The sub-stantially rigid washer     , or the composite washer , has an external thread       so that the said washer           can be screwed into the thread of the cup-shaped portion    of the valve body     .
Patent CA-1318547-C (CA)
Title: Platen arrangement for hot melt ink jet apparatus
Inventor: SPEHRLEY CHARLES W JR
IPC: B41J2/01
Filed: 1988-09-06
Granted: 1993-06-01
Abstract: Platen Arrangement for Hot Melt Ink Jet Apparatus Abstract In the particular embodiment described in the specification, a hot melt ink jet system includes a temperature-controlled platen (16) provided with a heater (25) and a thermoelectric cooler (28) electri-cally connected to a heat pump (26) and a temperature control unit (22) for controlling the operation of the heater and the heat pump to maintain the platen tem-perature at a desired level.  The apparatus also in-cludes a second thermoelectric cooler (35) to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied.  An airtight enclosure (17) surrounding the platen is connected to a vacuum pump (21) and has slits (18, 19) adjacent to the platen to hold the substrate in thermal contact with the platen.          (Fig. 2)
Patent CA-1313722-C (CA)
Title: Polymeric hydridochlorosilazanes and processes for their preparation
Inventor: GERDAU THOMAS
IPC: C08G77/62
Filed: 1988-10-05
Granted: 1993-02-16
Abstract: Abstract of the disclosure:              HOE 87/F 302 Polymeric hydridochlorosilazanes and processes for their preparation The invention relates to novel polymeric hydridochloro-silLazanes and a process for their preparation.  The com-pounds according to the invention can be converted into polyhydridosilazanes by reaction with ammonia, and these can in turn be pyrolyzed to ceramic material containing silicon nitride.  To prepare the polymeric hydridochloro-silazanes, oligohydridoalkylsilazanes (R1SiHNH)n are reacted with a dichlorohydridoalkylsilane R2SiHCl2.
Patent CA-1304516-C (CA)
Inventor: NATARAJAN BHARATH
IPC: G06Q10/08
Filed: 1988-10-05
Granted: 1992-06-30
Abstract: AUTOMATED PRODUCTION RELEASE SYSTEM            ABSTRACT OF THE DISCLOSURE    A  conceptual  decision  analysis  tool  for production  release planning displays management parameters and objectives and prompts the user to define priorities.  This encourages the user to plan based on management criteria.  The user keys in  the  priorities and  the  system automatically analyzes  the  impact  of planned  release on  the manufacturing process using a simulation process and re-evaluates the order release priorities and sequence.  This capability is used before any order is actually released to manufacturing.  The system also  provides  the  capability of analyzing  the impact of the orders even after the-user pre-sets priorities to release-certain orders.  The system calculates-the revised sequence and-produces impact statements  on  such  management  criteria  as manufacturing throughput, work-in-process inventory and cycle time.
Patent CA-1317832-C (CA)
Inventor: CHOE SANG H
IPC: F01N5/04
Filed: 1988-10-19
Granted: 1993-05-18
Abstract: MUFFLER ASPIRATOR FOR CLEANING ROTARY AIR FILTER SCREEN Abstract of the Disclosure An agricultural harvester has an aspirator embodied in the engine exhaust system and a pair of aspirator tubes have respective first ends respectively coupled to a vacuum duct, associated with a rotary screen cooling air filter, and to a combustion air pre-cleaner and have respective second ends coupled to the aspirator whereby exhaust gases flowing through the aspirator cause a suction at the aspirator tubes for sucking collected material away from the air filter and pre-cleaner and entraining such material in the exhaust gas flow for discharge into the atmosphere.
Patent CA-1311670-C (CA)
Title: Rust removal and composition therefor
Inventor: WALLER JOHN E
IPC: C23F11/10
Filed: 1988-10-20
Granted: 1992-12-22
Abstract: Abstract of the Disclosure Iron oxide deposits are removed from substrates by use of aqueous solution at approximately neutral pH containing a phosphonate (e.g., hydroxyethylidene diphosphonic acid), a reducing agent (e.g., sodium sulfite), and a corrosion inhibitor (e.g., benzotriazole).  Optionally, a surfactant and dispersant may be included.
Patent CA-1294005-C (CA)
Title: Apparatus and method for phase noise and post tuning drift cancellation
Inventor: SHAHRIARY IRADJ
IPC: H03B21/02
Filed: 1988-11-08
Granted: 1992-01-07
Abstract: APPARATUS AND METHOD FOR PHASE NOISE  AND POST TUNING DRIFT CANCELLATION                 ABSTRACT OF THE DISCLOSURE    The tuner section of a communications receiver 10 includes   a   gallium   arsenide   voltage   controlled oscillator 48 for upconverting the received signal in mixer 18.  Phase noise and post tuning drift associated with  oscillator  48  is  impressed  onto  the  signal supplied by a second oscillator network 46.  Thus, the outputs of mixers 18 and 78 both contain noise and post tuning  drift  associated  with  the  gallium  arsenide oscillator 48.  Mixer 28 is used to subtract the noise and drift component on line 30 from that on line 32 to thereby provide an output 14 which  is substantially free  of  the  noise  and  drift  associated  with  the efficient, but noisy gallium arsenide VCO 48.
Patent CA-1290409-C (CA)
Title: Waveguide h-plane junctions
Inventor: DE RONDE FRANS C
IPC: H01P5/12
Filed: 1988-11-29
Granted: 1991-10-08
Abstract: ABSTRACT WAVEGUIDE H-PLANE JUNCTIONS     An  H-plane  waveguide  'T'  junction  is  described  in  which matching is achieved over a full  wavguide  band  at the waveguide which forms the stem of the 'T'.  Reflection from the wall facing the stem is reduced by using a probe as a monopole located about a quarter  of  a  wavelength  from  the  said  wall.   Variations  with frequency in the reflection coefficient at the stem are reduced by a disc, at the foot of the probe, which acts as a radial reduced quarter wave transformer.
Patent CA-1338943-C (CA)
Title: Curable composition of oxyalkylene polymer
Inventor: YUKIMOTO SADAO
IPC: C08L71/02
Filed: 1988-12-23
Granted: 1997-02-25
Abstract: A  curable  composition  which provides  a  cured product  which  imparts  improved  drying  properties  to alkyd paints.   An oxyalkylene polymer having  reactive silicon  group  is  combined  with  at  least  one  other oxyalkylene  polymer  which  is  either  one  containing hydroxyl  group  and  having  a  number  average molecular weight of not less than 4,000 or one having essentially no hydroxyl group.
Patent CA-1303140-C (CA)
Title: Method for recovering a control signal for controlling the phase of a local carrier signal
Inventor: HOFFMANN MICHAEL
IPC: H04L27/38
Filed: 1989-01-20
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE      Reliable phase synchronicity between a local carrier signal and the carrier signal of an amplitude and/or phase shift keyed received signal is produced as quickly as possible by employing a phase detector characteristic whose root mean square outside of the synchronization point is as large as possible and whose synchronization point, i.e., zero passage, is situated such that it also considers a phase deviation of the received signal component from its quadra-ture position.
Patent CA-1313480-C (CA)
Inventor: BROSELOW JAMES B
IPC: A61B5/107
Filed: 1989-05-17
Granted: 1993-02-09
Abstract: THERAPEUTIC APPARATUS                 ABSTRACT OF THE DISCLOSURE      An apparatus for therapeutic treatment of a patient.  A measuring tape is used to measure the heel-to-crown height of a patient.  The tape has coded zones along its effective length.   A dispenser is provided with correspondingly coded zones whereby a treatment administered using the coding of the dispenser is correlated to the heel-to-crown height of a patient as measured by the tape.
Patent CA-1314707-C (CA)
Title: Aquatic boot
Inventor: SOLLOWAY DANIEL S
IPC: A63B21/008
Filed: 1989-06-12
Granted: 1993-03-23
Abstract: ABSTRACT OF THE DISCLOSURE An aquatic exercise boot is provided for interchangeable and comfortable use by men, women and children alike.  The aquatic exercise boot permits a large range of movement and increased resistive forces, torque and torsion.  The aquatic exercise boot serves as fluid resistors to water flow as the aquatic boot is moved through the water.  The aquatic exercise boot can have internally padded aquatic foot, ankle, and leg assemblies with symmetrical Z-shaped fins.  The aquatic foot, ankle, and leg assemblies can be pivotally connected to each other by vertical hinges and can be strapped, sewn, fastened, glued, or otherwise connected to a zippered elastomeric aquatic sock with an open toe portion.
Patent CA-1334848-C (CA)
Title: Process for the production of polyisocyanates which contain isocyanurate groups
Inventor: SLACK WILLIAM E
IPC: C07D251/34
Filed: 1989-07-27
Granted: 1995-03-21
Abstract: The present invention is directed to a process for the preparation of a polyisocyanate having isocyanurate structure which comprises heating an organic diisocyanate to a temperature of from 100 to 275°C in the presence of a catalytic amount of an organic compound containing at least one aliphatic tertiary amine group and at least one aliphatic hydroxy group and having a molecular weight of no more than about 500 for a period of from about 0.1 minute to about 360 minutes.
Patent CA-1337057-C (CA)
Title: Low reflectance, highly saturated color coating for monolithic glazing
Inventor: GILLERY FRANK HOWARD
IPC: C03C17/245
Filed: 1989-08-15
Granted: 1995-09-19
Abstract: A transparent article for reflecting solar energy comprising a zinc/tin oxide film which exhibits color by interference effects and a reflective metal film preferably comprising chromium is disclosed along with a sputtering method for its production.
Patent CA-1335747-C (CA)
Inventor: BENHAM ELIZABETH A
IPC: C08F210/16
Filed: 1989-08-25
Granted: 1995-05-30
Abstract: A copolymer of ethylene and a higher alpha-olefin, preferably 1-hexene and/or 4-methyl-1-pentene, can be produced using an activated and subsequently carbon monoxide reduced chromium containing catalyst and a  trialkyl boran cocatalyst.   The polymerization process must be carefully controlled to produce a copolymer resin that can be made into a tough, impact resistant film.
Patent CA-1316980-C (CA)
Title: Power supply
Inventor: HUGHEY DANIEL C
IPC: B05B5/025
Filed: 1989-09-25
Granted: 1993-04-27
Abstract: Abstract Of The Disclosure A high magnitude electrostatic potential supply is coupled to a utilization device.  The electrostatic potential supply comprises an operating potential source (+Vcc), a transformer (122) having primary (156) and secondary (172) windings, and a resonant frequency, and a high potential rectifier and multiplier (124).  The` operating potential source (+Vcc) is coupled to the primary winding (156) and the high voltage rectifier and multiplier (124) is coupled to the secondary winding (172).  The electrostatic potential supply also includes a phase comparator (110) having first and second inputs, and a voltage controlled oscillator (114) having a free running frequency of substantially the transformer (122) resonant frequency.  The secondary winding (172) is coupled (126) to the first input of the phase comparator (110) and a stage (114) in the primary (156) circuit (110, 112, 114, 116, 118, 120-1, 2) is coupled to the second input of the phase comparator (110).  The phase comparator (110) generates a control signal related to the frequency difference between the signal from the secondary winding (172) and the signal from the primary circuit (110, 112, 114, 116, 118, 102-1, 2).  The output of the phase comparator (110) is coupled (112) to the input of the voltage controlled oscillator (114) to synchronize the voltage controlled oscillator (114) output frequency substantially with the frequency of the signal from the secondary winding (172).  The voltage controlled oscillator (114) is coupled (116, 118, 120-1, 2) through the primary circuit (110, 112, 114, 116, 118, 120-1, 2) to the primary winding (156) to maintain the operating frequency of the transformer (122) substantially at its resonant frequency.
Patent DK-149727-C (DK)
Inventor: REDLICH HORST
IPC: G11B3/44
Filed: 1982-04-01
Granted: 1987-07-13
Abstract: Apparatus for recording an information signal on a metallic record carrier. The information is impressed on the carrier by cutting a groove therein by means of a stylus, the groove being characterized at each point by a slope or modulation pitch angle. The stylus has a longitudinal axis, a leading edge substantially parallel to this axis and a trailing edge. The angle between the longitudinal axis of the stylus and a normal to the surface of the record carrier is greater than 10 DEG  and not more than a value which would make the angle between the trailing edge of the stylus and the surface of the record carrier less than the maximum modulation pitch angle. The stylus is movably attached to a fixed structure by a mounting member and is electromagnetically excited by a driving member to shape the grooves in the record carrier in accordance with the information signal. The record carrier, stylus, mounting and driving members are dimensioned to generate an oscillation at a frequency which is higher than that of the information signal and superimpose this oscillation on the information signal.
Patent DK-155599-C (DK)
Inventor: LOHRI BRUNO
IPC: B01J31/04
Filed: 1983-07-12
Granted: 1989-12-18
Abstract: 1. A process for the manufacture of 4-oxo-beta-ionone of the formula see diagramm : EP0101811,P5,F2  characterized by oxidizing retroionone of the formula  see diagramm : EP0101811,P5,F3  with oxygen or an oxygen-containing gas.
Patent DK-163661-C (DK)
Inventor: DESAI BIPINCHANDRE NANUBHAI
IPC: C07D207/40
Filed: 1985-08-02
Granted: 1992-08-24
Abstract: This invention encompasses compounds of the formulaand pharmaceutically acceptable acid addition salts thereof wherein n is 2 or 3 and R and R, are n-propyl, isopropyl, or R, and R, together with N form a 2,6-dimethyl-1-piperidinyl group. The compounds of this invention are useful as antiarrhythmic agents.
Patent FI-67932-C (FI)
Inventor: HERLITZE GERHARD
IPC: F16K11/08
Filed: 1979-09-25
Granted: 1985-06-10
Abstract: A valve for simultaneously closing the outlets of a plurality of containers in communication with the valve, and an outlet from the valve, comprising a valve housing having a plurality of inlet openings corresponding to the number of container outlets to be sealed, and at least one outlet; a sealing element adjustably positioned in the valve housing for simultaneously sealing the valve housing inlets and outlet so as to seal off liquid communication between the containers, and between the containers and the exterior; and an arm connected to the sealing element for actuation of the sealing element exterior of the valve housing.
Patent FI-79400-C (FI)
Inventor: TAYLOR WILLIAM
IPC: F16D3/84
Filed: 1983-02-04
Granted: 1989-12-11
Abstract: A guard for a power transmission shaft such as a tractor pto shaft 18,20 comprises a flexible convoluted tubing 24 with end couplings 26 which together totally enclose the rotating parts. The tubing 24 can extend and retract axially to suit a variety of shaft lengths, and can flex transversely to accommodate turning of the tractor/implement combination. A tube 34 journalled on bearings 36, or equivalent bearing means, prevents damage to the tubing 24 by the shaft 18,20.
Patent FI-80211-C (FI)
Inventor: PRINCE ALFRED MAYER
IPC: A61K35/16
Filed: 1983-04-05
Granted: 1990-05-10
Abstract: A mammalian blood plasma or plasma derivative substantially free of active hepatitis B or non-A, non-B viruses is disclosed, the plasma being characterized by the presence of factor VIII, the percent by weight of denatured factor VIII to the sum of undenatured factor VIII and denatured factor VIII being less than 50%. The plasma is sterilized by contact with a detergent, alcohol or ether, preferably a mixture of detergent and ether, usually followed by removal of the viral sterilizing agent.