baber/WOPTO huggingface dataset:
Patent CA-1314629-C (CA)
Title: High performance sigma delta based analog modem front end
Inventor: HALIM RAOUF Y
IPC: H03M3/02
Filed: 1988-12-20
Granted: 1993-03-16
Abstract: "IMPROVED HIGH PERFORMANCE SIGMA DELTA    BASED ANALOG MODEM FRONT END"                   Abstract An improved analog front end circuit for a high performance modem comprising an oversampling sigma delta modulator analog-to-digital converter which employs a novel four phase clocked MOSFET switched capacitor integrator. The integrator is switched in a manner as to eliminate signal dependent charges in the MOSFET switches. The sigma delta modulator shifts quantization noise of the analog-to-digital conversion process out of baseband of the analog signal. A novel integrated decimating FIR low pass filter filters the quantization noise from the digital output signals, and reduces the number of digital signals to obtain a sufficient number of signal samples in order to provide operation at high speeds, for example 9600 bps. The improved four phase switched capacitor integrator is also suitable for use in sigma delta modulator circuits, analog-to-digital converter circuits, integrating circuits, and the like. A novel return-to-zero circuit eliminates distortion in a sigma delta modulator based analog-to-digital conversion process which can result from unequal rise and fall times of the digital output, by insuring that the energies in signals represented by a "one" and signals represented by a "zero" are equal, even during portions of the bit stream wherein there is a consecutive sequence of "ones".
Patent CA-1310558-C (CA)
Title: Anastomosis coupling assembly compression
Inventor: CUMMINGS JOEL W
IPC: A61B17/11
Filed: 1989-03-28
Granted: 1992-11-24
Abstract: COMPRESSION ANASTOMOSIS COUPLING ASSEMBLY                       Abstract A compression anastomosis assembly of interlocking coupling members, particularly suitable for use in achieving anastomosis of tubular organs, having an improved locking feature to prevent inadvertent disassembly of installed coupled members.  The design and configuration of the members also provide for ease in placement of the assembly in a living body wherein preferably one assembly member includes a cutting guide and a cutting ring which facilitate use of a cutting implement commonly associated with a device suitable for use during assembly implantation.
Patent CA-1313257-C (CA)
Title: Circuit for identifying when a reproduced color video signal has been recorded in a high-band or low-band mode
Inventor: GANSE SHIGERU
IPC: H04N9/898
Filed: 1989-03-31
Granted: 1993-01-26
Abstract: PATENT 39-0100.2140 ABSTRACT OF THE DISCLOSURE         A recording mode identifying circuit is provided for use in a magnetic recording and/or reproducing apparatus capable of recording a color video signal in a first or low-band mode in which a luminance signal is recorded as a frequency modulation of a first carrier frequency and a second or high-band mode in which the luminance signal is recorded as a frequency modulation of a second carrier frequency.  For avoiding erroneous ideniification of the mode with which the color video signal was recorded, a predetermined frequency component of a reproduced FM luminance signal which corresponds to the frequency of the carrier of one of the modes when modulated by a predetermined luminance signal level, for example, the frequency component of the lower sideband corresponding to the sync tip level in the low-band mode, is phase inverted, and an amplitude component of the resulting signal with phase inversion is eliminated and the mode with which the reproduced color video signal was recorded is determined by detecting,the level of the predetermined frequency component, for example, corresponding to the sync tip level in the low band mode.   AS20?04mk
Patent CA-1327516-C (CA)
Inventor: BORDINI GIORGIO
IPC: B65B55/02
Filed: 1989-04-25
Granted: 1994-03-08
Abstract: Abstract The present invention relates to a sterilization method that uses liquid disinfectant for sterilizing intended parts in a sterile liquid content packing machine. These parts include a filler pipe and piping in free communication therewith.  The method consists of first preheating heat storage piping which has a high heat capacity by passing super-heated air therethrough.  Liquid disinfectant is spray-charged for a given time into the super-heated air passing through the heat storage piping, thereby vapourizing the disinfectant.  Any drop in temperature of the resulting mixture is inhibited by the heat stored within the heat storage piping.  The mixture is then passed and brought into contact with the intended parts to be sterilized and the mixture condenses evenly as a film of liquid disinfectant.  Heated air, having a lower temperature than the aforementioned heated air, is then passed and brought into contact with the condensed film, vaporizing the film so that it can be removed.
Patent CA-1333209-C (CA)
Title: Artificial spinal fusion implants
Inventor: MICHELSON GARY K
IPC: A61F2/00
Filed: 1989-06-27
Granted: 1994-11-29
Abstract: The present invention comprises an artificial implant, the purpose of which is to participate in, and directly cause bone fusion across an intervertebral space following the excision of a damaged disc.  Said implants are structurally load bearing devices, stronger than bone, capable of withstanding the substantial forces generated within the spinal interspace.  Such devices have a plurality of macro sized cells and openings of 1-3mm, which can be loaded with fusion promoting materials, such as autogenous bone, for the purpose of materially influencing the adjacent vertebrae to perform a bony bond to the implants and to each other.  The implants casing may be surface textured or otherwise treated by any of a number of known technologies to achieve a "bone ingrowth surface" to further enhance the stability of the implant and to expedite the fusion.  Further, said devices are so configured and designed so as to promote their own stability within the vertebral interspace to resist dislodgement, and furthermore, to stabilize the adjacent vertebrae.
Patent CA-1334774-C (CA)
Inventor: OHTA MASAHIRO
IPC: C08G73/14
Filed: 1989-07-04
Granted: 1995-03-14
Abstract: This invention relates to a process for preparing polyimide having good heat-stability and excellent flowability in a molten state.       The polyimide is prepared by reacting 3,3'-diaminobenzophnone or bis(3-aminophenyl)sulfone, tetracarboxylic dianhydrides such as pyromellitic dianhydride, 3,3',4,4'-benzophenonetetracarboxylic dianhydride and bis(3,4-dicarboxyphenyl) ether dianhydride; and dicarboxylic anhydrides such as glutaric anhydride, 1,2-hexanedicarboxylic anhydride, phthalic anhydride and 3,4-benzophenonedicarboxylic anhydride.  The molar ratio of aromatic diamine : tetracarboxylic dianhydride : dicarboxylic anhydride is 1 :(0.9 to 1.0) : (0.001 to 1.0).
Patent CA-1324629-C (CA)
Title: Clamp connector
Inventor: LAWSON JOHN E
IPC: F16L37/62
Filed: 1989-07-21
Granted: 1993-11-23
Abstract: Abstract An improved clamp connector for securing ends of tubular members together in tight sealed relationship and including a pair of semicircular segments having lips to engage the opposite sides of abutting projections on the tubular members, a pressure responsive actuator to preload the segments on the projections, connecting studs between the segments which are loaded by the actuator and blocks of a preselected size to be positioned  in supporting relationship to the actuator in its preload position to maintain such preload on the segments and studs after the fluid pressure on the actuator is released.   A pressure responsive portion of the blocks allows their quick and positive release when desired.
Patent CA-1319764-C (CA)
Title: Manipulable three-dimensional projection imaging method
Inventor: WAGGENER ROBERT G
IPC: A61B5/055
Filed: 1989-07-31
Granted: 1993-06-29
Abstract: PATENT               MANIPULABLE THREE-DIMENSIONAL       PROJECTION IMAGING METHOD            Abstract of the Disclosure A method of developing a foreground image from two views of an object, such as orthogonal x-ray views, for the making of a protectable three-dimension image on a computer display monitor superimposed on a background image.  The foreground image can be included on the original view of the object or can be separate therefrom or can be represented by digital mathematical ex-pression.  The method finds particular application in medical applications such as branchytherapy dosimetry, breast biopsy localizing, and external dosimetry compu-tation for radiotherapy.  When used with a dosimetry application, isodose lines can be computed and imaged for various simulated positioning and orientation of the radiation sources and simulated dose sizes.
Patent CA-1335188-C (CA)
Title: Method for production of human tissue type plasminogen activator
Inventor: MIYAHARA SHOICHIRO
IPC: C12N5/00
Filed: 1989-09-28
Granted: 1995-04-11
Abstract: Human tissue type plasminogen activator (tPA) which is effective as a therapeutic agent is obtained at a high concentration by increasing the osmotic pressure of the cell culture medium or tPA producing medium using bicarbonate ion up to at least 350 milliosmole/liter optionally also supplementing the medium with an antiplasmin agent.  Single-chain tPA is produced at a high concentration accordingly.
Patent FI-76123-C (FI)
Inventor: MCKELVEY HAROLD E
IPC: C23C14/34
Filed: 1984-03-20
Granted: 1988-09-09
Abstract: Described is a cylindrical magnetron cathode sputtering apparatus for the simultaneous coating of a large number of articles or substrates, comprising an evacuable coating chamber (10), a central cylindrical cathode (14) mounted in said coating chamber and a plurality of auxiliary cylindrical cathodes (15) also mounted in said coating chamber circumferentially of said central cathode, magnet assemblies mounted in said central cathode (39) and in each of said auxiliary cathodes (61), with means (27, 85) being provided for rotating each of said cathodes while maintaining the magnet assemblies therein stationery. A carrier (70, 72) for holding the articles to be coated is located between the central cathode auxiliary cathodes and includes a plurality of article supports arranged circumferentially of the central cathode, said article supports being rotatable as well as being caused to revolve around the central cathode in planetary fashion. Also described is method of sputter coating utilizing the apparatus.
Patent FI-82413-C (FI)
Inventor: BOERGER K
IPC: B29C48/395
Filed: 1984-12-21
Granted: 1991-03-11
Abstract: A pipe of thermoplastic polymer, e.g. polyvinylchloride is extruded.The wall thickness of the pipe is controlled in order to obtain a pipe of a substantially even wall thickness. For said control the wall thickness of the extruded pipe is measured at 360 points equally distributed over the circumference and moreover the average is determined in eight measuring sectors comprising 45 measuring points per sector. The average of the measuring values of one measuring sector is compared with the circumferential average of the 360 points, the deviation of the desired wall thickness in said one sector being counter balanced by the action of the heating elements.The apparatus of the invention for executing the method of extrusion of a pipe of thermoplastic polymer comprises an extruder with an extrusion die 2 having a moulding end part 2a and heating elements 11, 11' located about said end part 2a, and a wall thickness measuring device 7 being rotatably about the circumference of the pipe. The wall thickness measuring device 7 is transmitting measurement data to a signal processing unit 9. A comparator element 10 is provided for comparing two values of measurement values averaging operations and said comparator element 10 acts upon the temperature control device 8 controlling the temperature of the heating element 11 in a temperature control sector located in the axial extension of a measuring sector as compared with the average of the total circumference of the pipe.
Patent FI-71532-C (FI)
Inventor: RANTANEN KEIJO
IPC: B65D30/24
Filed: 1985-10-17
Granted: 1987-01-19
Abstract: The invention concerns a stitched valve bag and a procedure for manufacturing stitched valve bags from a material web run in tubular form. The valve bag (30) is provided at both ends with a stitched seam (38), and the bag (30) has in one corner a valve member (34') constituting a valve opening. In the longitudinal direction of the mantle part (31) of the bag (30) has at one end (32) at a distance from the corner of the bag been made an incision (36) longitudinal to the mantle (31). The portion between the incision (36) and the corner has been folded to become a valve member (34'), along a folding line (35) extending substantially from the bottom of the incision (36) obliquely to the margin of the mantle part (31). On the side beyond the incision (36) the bag end (32) has for improved strength been folded double before stitching said end of the bag.
Patent FI-81839-C (FI)
Inventor: GINATTA MARCO VINCENZO
IPC: C25C7/00
Filed: 1986-07-21
Granted: 1990-12-10
Abstract: The plant for the electrolytic production of a metal in a molten salt bath by deposition at the cathode in the solid state includes an outer casing (2), means (16a, 20a) for maintaining an atmosphere inert to the metal to be produced in the casing, a container (6) within the casing and arranged to contain the molten salt bath and having a movable cover (48), a plurality of electrodes (52) suspended in the molten salt bath each bearing on means (54a, 54b) for supporting it and connecting it electrically, the means comprising for each of the electrodes a pair of electrically conductive elements (56) facing each other and supported respectively by two opposite walls of the container and handling means (8) associated with the outer casing for removing any one of the electrodes from the container after raising of the movable cover.
Patent FI-92982-C (FI)
Inventor: BEUROTTE MICHEL
IPC: B22D41/08
Filed: 1990-11-15
Granted: 1995-02-10
Abstract: The subject of the invention is a ladle for treating metal, comprising a metal casing (1) which is equipped, on its inner surface, with a refractory wall coating (3) and with a refractory base coating (4) carrying a taphole (5), characterised in that the surface of the refractory base coating (4) in contact with the metal under treatment is a concave surface having, at any point, a slope directed towards the taphole (5). A further subject of the invention is a process for producing such a refractory base coating.
Patent FI-94949-C (FI)
Inventor: KARNER FRANZ JOSEF
IPC: B66B5/00
Filed: 1994-01-05
Granted: 1995-11-27
Abstract: In this overspeed governor, an overspeed condition causes, by means of coupling elements (15,15'), a brake (5) comprised in the overspeed governor to engage a rope pulley (3) which, due to friction, brakes the rope driving the rope pulley itself and thus triggers the safety gear of the elevator. In the invention, the rotation of at least one coupling element (15,15') provided in the overspeed governor and rotating with it is braked by a frictional force which is applied to a braking point (31,32) on the coupling element (15,15'). The combined effect of the braking action and the rotation of the overspeed governor turns the coupling element (15,15') into a position in which the brake (5) is activated so as to engage the rope pulley (3). <IMAGE>
Patent NO-160841-C (NO)
Inventor: JESCHKE WILLI
IPC: B65H5/22
Filed: 1985-11-15
Abstract: A method of aligning sheets during stream feeding of a multiplicity of sheets over a feed table to a first steadily rotating cylinder of a sheet-processing medium includes in a first feeding stage, conveying the sheets in an imbricated arrangement thereof via the feed table and in a given direction to an alignment region; in a second feeding stage, aligning a lateral and a leading edge of the sheets in the alignment region while the sheets remain in the imbricated arrangement thereof and without interrupting movement of the sheets in the given direction and, in a third feeding stage, accelerating the speed at which the sheets are stream fed to a peripheral speed of a rotating cylinder and feeding the sheets to the first steadily rotating cylinder, while finally aligning the sheets at front markers.
Patent NO-168262-C (NO)
Inventor: ROCHE JOSEPH R
IPC: E21B21/10
Filed: 1986-08-22
Abstract: A system adapted for alternative use as a diverter or a blowout preventer for a bottom supported rig and adapted for positioning beneath a rotary table of the drilling rig is disclosed. The system comprises a fluid flow controller and at least two bases adapted for being alternatively removably secured to the controller. When the first base is in combination with the fluid flow controller, the system may be used only as a diverter and when the second base is used in combination with the fluid flow controller the system may be used only as a blowout preventer. A method according to the invention includes steps for installing the system adapted for alternative connection as a diverter or a blowout preventer for a bottom supported drilling rig after structural casing has been set in a borehole.
Patent NO-171145-C (NO)
Inventor: DESAI NARENDRA RAGHUNATHJI
IPC: A61K9/107
Filed: 1986-09-10
Abstract: Lipid emulsion form compositions have been formulated and presented to eliminate adverse injection site reactions associated with the intravenous administration of certain sparingly water soluble, hydrophobic, ionizable drugs in mammals and to provide a solubilized drug form for oral, parenteral or intraarticular administration which enhances drug absorption and the therapeutic efficacy of the drug.
Patent NO-166279-C (NO)
Inventor: PESCAROLLO ERMANNO
IPC: C07B61/00
Filed: 1988-01-27
Abstract: In the processes for the synthesis of alkyl-tert-butyl ethers by reacting the isobutene contained in a C4 charge with a high butadiene content with aliphatic alcohols, to the purpose of preventing polymerization phenomena in the step of separation of alkyl-tert-butyl ether product from the other unreacted components, the initial C4 charge and/or the aliphatic alcohol are submitted to an oxygen removal step, to the purpose of removing all of dissolved free oxygen, down to a maximum residual content of 1-2 ppm.
Patent AU-692240-C (AU)
Title: Aryl-N-alkylacridanthiocarboxylate derivatives useful for chemiluminescent detection
Inventor: AKHAVAN-TAFTI HASHEM
IPC: C07D219/06
Filed: 1995-03-08
Granted: 2003-10-02
Abstract: Aryl N-alkylacridanthiocarboxylate compounds which produce chemiluminescence. The compounds produce light with peroxide and peroxidase. The compounds are used as a substrate in assays for various analytes.
Patent CA-2004563-C (CA)
Inventor: REEVES MALCOLM ROBIN
IPC: G01R31/50
Filed: 1989-11-27
Granted: 1998-04-21
Abstract: A circuit arrangement includes a lamp filament (1) as a load and a resistor (2) in series with the filament. For detecting the current through the load, the source of a MOSFET (6) is connected with the end of the resistor remote from the filament, the drain of the MOSFET being connected with the other end of the resistor via the primary winding of a step-up transformer (7) and a further resistor (8), a diode (9) being connected between the source and the drain of the MOSFET.  If the MOSFET is turned on by an appropriate voltage at an input (11) connected to its gate, the voltage across the secondary winding of the transformer is substantially proportional to the value of the current through the filament.
Patent CA-2006014-C (CA)
Inventor: CHAREST EMILIEN
IPC: A45F4/02
Filed: 1989-12-19
Granted: 1996-11-12
Abstract: The convertible chair and load carrier device includes a dorsal member, a load support member pivotally mounted on the dorsal member, and a harness for attaching the dorsal member on the back of a user person.  The load support member can be pivoted between first and second positions and locked in either one of these two positions. In its first position, the load support member is capable of supporting a load to thereby allow the user person to carry it on his back. In the second position of the load support member, this member forms the seat of a chair and the dorsal member the back of the same chair.
Patent CA-2009635-C (CA)
Title: Segmented vectoring cruise nozzles
Inventor: GARLAND DOUGLAS
IPC: F02K1/00
Filed: 1990-02-08
Granted: 1995-12-19
Abstract: A thrust vectoring structure is provided for VSTOL aircraft having a pressurized gas generator and at least one rearward  facing  outlet  with  an  opening  for  discharging pressurized gas  from the pressurized gas  generator.  The thrust vectoring structure has a plurality of  horizontal dividers extending between the sides of the opening.   A front flap is rotatably mounted adjacent the front edge of the dividers and a rear flap is rotatably mounted adjacent the rear edge of the dividers.  The flaps are rotatable from a horizontal position to  a  vertical  position.    In  the horizontal  position  the  pressurized  gas  is  directed rearwardly.  In the vertical position the pressurized gas is directed downwardly in a number of discrete segmented jets.       The  flaps  are  further  rotatable  so  that  they  diverge outwardly  in  either  the  horizontal  or  the  vertical positions.  In one embodiment, the top of the outlet is also rotatable toward or away from the bottom to vary the cross sectional area of the outlet.
Patent CA-2012158-C (CA)
Title: Shaft synchronous balancing apparatus
Inventor: BRADSHAW CHARLES
IPC: G01M1/22
Filed: 1990-03-14
Granted: 1995-05-16
Abstract: A shaft synchronous balancing apparatus wherein a rotor to be balanced is rotated in conjunction with appropriate balance plane located transducers and a non-contacting shaft monitoring pick-up, for example of an optical variety. The latter pick-up derives a one times per revolution reference signal which is treated by a software driven process control system including dual timer-counters to evaluate the period of revolution, T, and to develop N incremental sampling pulses having a duration or time constant of T/N. Preferably, N is an even integer power of 2. Periodic updating of the duration of a time constant is developed utilizing only one software interrupt in conjunction with the two counter timers. A nulling technique for canceling offset at the signal treatment stages is provided which accommodates for the high amplification levels necessary at the front end of the system. Additionally, a gain adjust feature achieves optimum precision and reliability for the system by performing within three discrete ranges.
Patent CA-2019000-C (CA)
Title: Cellular telephone responsive to service availability for operating on different cellular telephone systems
Inventor: PIREH ALI
IPC: H04W88/06
Filed: 1990-06-14
Granted: 1993-06-22
Abstract: CELLULAR TELEPHONE RESPONSIVE TO SERVICE AVAILABILITY FOR OPERATING ON DIFFERENT CELLULAR TELEPHONE SYSTEMS Abstract of the Disclosure A unique dual-system cellular telephone includes a transceiver (100) having a dual bandwidth receiver, an audio/logic unit (200) having dual control programs, and a handset unit (300). The dual bandwidth receiver of the transceiver (100) has different filters (408 and 410) in the intermediate frequency section thereof which are switchably selected depending on which cellular telephone system is available. When service is not available in one of the cellular telephone systems, the unique cellular telephone automatically switches the receiver bandwidth and control program for operating on the other cellular telephone system.