baber/WOPTO huggingface dataset:
Patent CA-1315460-C (CA)
Title: Preparation of olefin/co copolymers
Inventor: GEUZE MAARTEN M
IPC: C08G67/00
Filed: 1988-08-22
Granted: 1993-03-30
Abstract: A B S T R A C T                 PREPARATION OF OLEFIN/CO COPOLYMERS      Process for the preparation of copolymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is copolymerized by continuously contacting the mixture in steady state with a solution of a palladium-containing catalyst composition in the presence of liquid diluent in which the copolymers are almost or entirely insoluble, the quotient of the quantity of copolymer formed per hour and the quantity of copolymer in the reactor at any moment being less than 0.2.
Patent CA-1309460-C (CA)
Inventor: ADAMS DAVID W
IPC: H01M50/172
Filed: 1988-10-05
Granted: 1992-10-27
Abstract: ABSTRACT OF THE INVENTION           A battery terminal post of the type for use in electrolytic devices contained by resilient electrolyte-resistant walls, wherein an opening in the electrolytic device wall is radially enlarged to form a bushing, into which is inserted a second T-shaped lead alloy bushing, into which in turn there is inserted a complementary third bushing of pure lead, which three bushings are then forced into intimate sealing contact by being radially expanded by the action of a punch and die in a swaging operation.
Patent CA-1298979-C (CA)
Title: Abrasive tool with improved swarf clearance and method of making
Inventor: WIAND RONALD C
IPC: B24D3/06
Filed: 1988-10-24
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE         An abrasive tool utilizes a bed of discrete elements secured to a tool substrate.  The bed of discrete elements provides intersticial spaces between the elements for mounting receipt, for example by brazing, of a monolayer of abrasive particles, such as diamonds.  The abrasive particles extend outwardly of the bed to form the abrading elements of the tool.
Patent CA-1314160-C (CA)
Inventor: MARTIN HOWARD
IPC: A61C13/30
Filed: 1988-11-03
Granted: 1993-03-09
Abstract: ABSTRACT      A  perforated dental post system is provided for anchoring a  crown to the root of a tooth.  This post consists of a shank with  a  spiral  thread running lengthwise thereof.  Serrations are  provided  on the shank.  Flanges are provided at the upper end  of  the post.  A central bore runs lengthwise of the post, and spaced transverse or perpendicular cross bores are provided in  the  post.   When  the bores are filled with cement and the outer  wall  of the post is coated with cement, the post can be anchored  to  the  tooth  root  and  to  the crown.  In a second embodiment  of  the  dental post, a plurality of longitudinally extending  grooves  are  provided  in the  surface of the post together   with  a  plurality  of  shallow  longitudinally  and radially  extending  bores.  When the various bores and grooves are  filled with cement, they can be used to anchor the post in a tooth.
Patent CA-1339935-C (CA)
Inventor: WALDER JOSEPH A
IPC: C12Q1/6848
Filed: 1988-11-04
Granted: 1998-06-30
Abstract: The use of oligodeoxynucleotides modified at the 3'-terminal internucleotide link as therapeutic agents by a method of hybridizing the modified oligonucleotide to a complementary sequence within a targeted mRNA and cleaving the mRNA within the RNA-DNA helix by the enzyme RNaseH to block the expression of the corresponding gene.
Patent CA-1292811-C (CA)
Title: Ion mobility detector having reactor region and drift region formed of insulative tubing having conductive field producing elements on outside of tubing
Inventor: DAVIDSON LYLE A
IPC: H01J49/04
Filed: 1988-11-15
Granted: 1991-12-03
Abstract: ABSTRACT     Disclosed is an ion mobility sensor operable at atmospheric pressure comprising a tube of suitable dielectric material having an inlet for receiving a sample gas and a carrier gas, a reactor region for generating ions from the sample gas, a grid means for separating the reactor region from a drift region, and a plate for collecting ions that traverse the drift region.          The reactor region and the drift region are provided with field elements for accelerating the ions, the field elements comprising electrically conductive material disposed on the exterior of the tube.  The dielectric material may be glass or ceramic material.
Patent CA-1338219-C (CA)
Title: Analog circuit for baseband modem
Inventor: CARRIERE VINCENT
IPC: H03H11/04
Filed: 1988-11-21
Granted: 1996-04-02
Abstract: So as to be directly connected to the predefined logic circuit PLC to form a baseband modem, the analog circuit is mono-lithically integrated in accordance with the CMOS technology, using switched-capacitor filters which are driven by only one clock.  The automatic equalizer is likewise designed from switched-capacitor filters, equalization being obtained by variable and symmetrical clipping of the signals.  In these conditions the modem can operate automatically in a very wide range of data rates.
Patent CA-1298754-C (CA)
Title: Antifoam based on oil-in-water emulsion
Inventor: DE CLERCQ ARNOLD
IPC: B01D19/04
Filed: 1988-12-29
Granted: 1992-04-14
Abstract: Abstract of the Disclosure:  In antifoams based on oil-in-water emulsions, the oil phase of the emulsions con-tains (a) a C12-C26-alcohol, a distillation residue which is obtainable in the preparation of alcohols having a relatively large number of carbon atoms by the oxo process or by the Ziegler process and which may fur-thermore be oxyalkylated and/or (b) a fatty acid ester of a C12-C22-carboxylic acid with a monohydric to trihydric C1-C18-alcohol and, if required, (c) a hydrocarbon having a boiling point above 200°C or a fatty acid of 12 to 22 carbon atoms, accounts for from 5 to 50% by weight of the emulsion and has a mean particle size of less than 25 mm, and from 5 to 50% by weight of components (a) and (b) of the oil phase are replaced by (d) one or more compounds which melt at above 70°C and are selected from the group consisting of the fatty alcohols of not less than 28 carbon atoms, the esters of a c1-c22-carboxylic acid with an alcohol of not less than 28 carbon atoms, the Polyethylene waxes having a molecular weight of not less than 2,000, the carnauba waxes, the montan ester waxes and the montanic acid waxes and their salts.
Patent CA-1307164-C (CA)
Title: Shaping device
Inventor: BINLEY GARY N
IPC: A23G3/28
Filed: 1989-01-13
Granted: 1992-09-08
Abstract: Q 7083 (R) ABSTRACT            Shaping device and method for shaping extrudable material comprising at least one extrusion nozzle having feeding means for extrudable material and being supported in a carrier common to all nozzles, motor means for moving either the carrier or a movable support surface for receiving extruded material directly from the nozzles and a programmable computer for controlling the motor means.                         ******
Patent CA-1312021-C (CA)
Title: Braking device in an arrangement for linear movement
Inventor: GRANBOM BO
IPC: F15B15/08
Filed: 1989-01-17
Granted: 1992-12-29
Abstract: ABSTRACT            There is intended here a braking device in an arrangement for linear movement comprising an elongate part (1) and a part (2) movable in relation thereto. Along substantially the entire stroke of the movable part of piston (2) there is at least one first braking surface (19, 20) movably arranged in relation to the central axis of the cylinder (1) said braking surface being adapted for co-action with a second braking surface arranged in association with the piston (2).            (Figure 2 for publication with the Abstract)
Patent CA-1338865-C (CA)
Inventor: LAUER HENK H
IPC: G01N27/447
Filed: 1989-01-26
Granted: 1997-01-21
Abstract: an  apparatus  is disclosed for providing capillary electrophoresis,  which   includes  an  electronically controlled  valve  system for automatically introducing a  sample  into  the  capillary by means of a vacuum at the  end of  the  capillary  tube.    This approach of sucking   in  the  sample  is  extremely  accurate  and reproducible,   and   results  in  a  minimum  of  band broadening.      Furthermore,  it  enables  the  entire capillary    electrophoresis   sytem   to   be   easily automated.   An automated temperature control system is provided   which   enables   the   temperature  of  the capillary  tube  (and  hence the solventtsolute system) to   be   controlled  during  electrophoresis,  thereby very   directly   controlling  pH  and  electrophoretic mobility.    In  another  embodiment,  the capillary is prewashed  and  equilibrated  to achieve substantially zero  charge on the capillary wall, thereby essentially eliminating   electroosmotic   flow  and  substantially improving resolution.
Patent CA-1334021-C (CA)
Inventor: HUFGARD JOHN W
IPC: B05B7/00
Filed: 1989-02-02
Granted: 1995-01-17
Abstract: An improved spray nozzle for use with air atomizable liquids wherein the spray pattern created by the atomizing nozzle may be adjusted from a circular pattern to a flat pattern or alternatively to an open oval,  the open end facing  in preselected  directions,  the  adjustments  being capable of occurring during the continuous operation of the nozzle.
Patent CA-1337171-C (CA)
Title: Resin laminates and a process for production thereof
Inventor: YAMASAKI KOMEI
IPC: H05K1/00
Filed: 1989-04-12
Granted: 1995-10-03
Abstract: A resin laminate comprising a layer of styrene-based polymer having mainly syndiotactic configuration and a thermoplastic resin layer, a metallized laminate comprising a layer of the styrene-based polymer described above and a metal layer, and process for producing these laminates are disclosed.  In the laminate, the styrene-based polymer layer and the thermoplastic resin layer may be biaxially stretched.    The laminates are expected to be utilized for electrostatic capacitors, hot stamping foils, flexible printed circuit board substrates, food wrapping films, and other functional films including magnetic tapes, and ornament films.
Patent CA-1301049-C (CA)
Inventor: NITTA TOMIO
IPC: F23Q2/16
Filed: 1989-04-26
Granted: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE:     A noncontrolling type valve for use in a gaslighter, a port-able cooking stove and other burners, which valve comprises a valve body push-fitted in a recess formed in the top plate of a gas container: and a filter positioned under the valve body to permit the gas to flow at a controlled rate.  The valve according to the present invention uses a porous concave object as a fil-ter.  The filter is laid on an impermeable resilient membrane.          The gas invades the concave space of the porous object from the outside to flow in the valve opening.  The rise of the surround-ins temperature will cause the membrane to bend yieldingly up-wards to cover the inside of the porous object, thereby prevent-ins the increase of the gas flow Passing through the porous ob-ject over a predetermined flow rate.
Patent CA-1321281-C (CA)
Title: Humoral hypercalcemic factor antagonists
Inventor: ROSENBLATT MICHAEL
IPC: A61P3/00
Filed: 1989-05-09
Granted: 1993-08-10
Abstract: TITLE OF THE INVENTION HUMORAL HYPERCALCEMIC FACTOR ANTAGONISTS          ABSTRACT OF THE INVENTION         The present invention relates to the use of peptide analogues as inhibitors of their respective naturally occurring peptides.  The structure of the peptide analogues is exemplified by an internal region of the N-terminus of humoral hypercalcemic factor hHCF, and truncations thereof: hHCF(14-34)NH2, hHCF(13-34)NH2, hHCF(12-34)NH2, hHCE(11-34)NH2, hHCF(10-34)NH2, hHCF(9-34)NH2, hHCF(8-34)NH2, hHCF(7-34)NH2, hHCF(6-34)NH2, hHCF(5-34)NH2, hHCF(4-34)NH2, hHCF(3-34)NH2, and these peptides containing various amino acid substitutions.
Patent CA-1310719-C (CA)
Title: Leak detection system for storage tanks
Inventor: ELDERTON PETER P
IPC: G01M3/26
Filed: 1989-05-26
Granted: 1992-11-24
Abstract: LEAK DETECTION SYSTEM FOR STORAGE TANKS        ABSTRACT OF THE INVENTION         A leak detection system for detecting the leakage of fluids from storage tanks uses a reference container, such as a standpipe, having its bottom adjacent the level of the bottom of the tank, which is initialized to the same hydrostatic head pres-sure as the tank, and then closed off.  The differential pressure between the hydrostatic head pressures of the standpipe and the tank is monitored over time in an externally mounted differential pressure gauge in order to detect the leakage of fluid from the storage tank.  Shut off of valves are provided in a tank pressure pipe and a reference pressure pipe to isolate both sides of the differential pressure gauge.  The very high sensitivity of avail-able differential pressure gauges allows the detection of very small leaks and very low leakage rates.  A leak detection system of unitary construction may be provided in which the standpipe is provided with an equalizing valve so that the system may be in-stalled through a single hole in the top of a liquid storage tank.  In alternate embodiments the standpipe is mounted inter-nally and external to the tank and in an external extension of the tank.  In another embodiment a vacuum system is used to draw fluid equally through the differential pressure gauge from both the tank and the standpipe to develop equal negative pressures on each side of the gauge.
Patent CA-1314404-C (CA)
Inventor: YOUNG BRIAN W
IPC: F16B7/04
Filed: 1989-06-19
Granted: 1993-03-16
Abstract: ABSTRACT OF DISCLOSURE       A  coupling   fitting   for   making   joints  in reinfocing  bars or wires for structural concrete  aims to  provide  a  mechanical  strength  of  the  coupling virtually  equal  to  the full design  strength  whilst providing the ability to increase the strength upto and beyond  ultimate tensile strength of the rebar  by  the addition of resin. To that end the coupling comprises a sleeve  (1)  for  fitting  in  spaced  relation  around adjacent portions  of  rebars  to  be joined and having positively adjustable engagers (3) threaded through the wall of the  sleeve,  and  profiled  engagers  (17)  to engage said portions.  The engagers serve for  centring the rebars and  the  profiling  serves to provide a key preferably  with both the sleeve and the rebar.  It  is also  preferred  to  have   the  positively  adjustable engagers  configured  to  bite into  the  rebars.   The spaced  relation  affords   provision  for  introducing settable resin.
Patent CA-1316597-C (CA)
Title: Magneto-optical memory apparatus and optical memory apparatus
Inventor: FUJI HIROSHI
IPC: G11B7/0045
Filed: 1989-07-19
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE     The present  invention discloses  a magneto-optical memory apparatus comprising: an optical head; a magneto-optical recording medium relatively mova-ble with respect to the optical head, into which recording marks, each having two ends, are recorded as information; the optical head being arranged such that, (i) at the time of recording into the magneto-opti-cal recording medium,  the recording marks are recorded such that the ends of each recording mark correspond to a second code of digital information composed of two dif-ferent types of codes, (ii) at the time of  reproduction,   a light beam having a condensing spot is projected to the magneto-opti-cal recording medium and,  when a reproduction light con-taining reproduction information is entered to the optical head from the magneto-optical recording medium,  a repro-duction signal is supplied, and (iii) when the light beam is projected to a record-ing mark, an information pulse corresponding to the second code is generated in the reproduction signal,  only when the reproduction light from the recording mark interferes with the reproduction light from the non-marking part; and a signal detector circuit for detecting the informa-tion pulse in the reproduction signal obtained from the optical head and for converting the reproduction signal into a digital reproduction signal.     Each of the recording marks contains a number of information to enhance the recording density of the mag-neto-optical recording medium,   thereby to increase the recording capacity.  Further,  the recording marks may be made in a large size and in a suitable shape. This facili-tates the transfer of the recording marks made by plastic forming and the like.  Futher,  the optical system may be simplified in arrangement.     The optical memory apparatus in accordance with the present invention includes the arrangement above-mentioned and is so arranged as to reproduce the recorded informa-tion by diffraction of the lights reflected from the opti-cal  information recording medium having recording marks formed therein.
Patent CA-1318407-C (CA)
Inventor: KASIRAJ CHANDER
IPC: G06Q10/10
Filed: 1989-08-18
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE           A  method  allows  for  the  communication  of  an electronic message between an enrolled user  linked to a computer network and an unenrolled recipient.  A recipient is designated for delivery of an electronic message from an enrolled user of a computer network.  It is determined if the designated recipient is an enrolled user in the computer network.  Then, in the event the designated recipient is not an enrolled user of the computer network, it is determined automatically  whether  the  designated  recipient  has  a designated intermediary linked to the computer network for receipt of the electronic message.  The electronic message is directed from the enrolled user  through  the computer network  to  the  unenrolled  recipient in  care  of  the designated intermediary.
Patent CA-1295675-C (CA)
Inventor: BUCK ROBERT J
IPC: H02M3/28
Filed: 1989-08-24
Granted: 1992-02-11
Abstract: SINGLE MAG AMP CONTROL SYSTEM FOR REGULATING BIPOLAR VOLTAGE OUTPUT      OF A POWER CONVERTER Abstract A power converter embodying the principles of the invention, and having a positive and negative output utilizes a single magnetic amplifier controller to control two saturable inductor cores utilized to regulate the positive and negative outputs by modulating the positive and negative pulse output of the power converter transformer. The magnetic amplifier controller monitors and sums the two voltageoutputs and derives an offset from average representative output signal. This offset from average representative output signal is compared with a reference signal toderive an error signal. A current responsive to the error signal is generated and utilized to periodically reset the two saturable inductor cores and regulate thepositive and negative output voltages.
Patent CA-1331395-C (CA)
Inventor: KLEISLE JAMES R
IPC: F16L57/06
Filed: 1989-09-18
Granted: 1994-08-09
Abstract: EARLY WARNING SYSTEM FOR INDICATING WEAR IN A SURFACE    Abstract of the Disclosure An early warning system for a material transfer system having an area to be monitored for internal wear caused by erosive flow action between the area and a transfer material.  An inner container or conduit defines the monitored surface area and has an inner surface in contact with the transfer material and an outer surface opposite the inner surface.  An outer layer or container surrounds the inner surface and is associated with the outer surface of the inner container.  The inner container is colored to contrast with the transfer material.  Alternatively, a colored layer and/or a conductor are located between the inner layer and outer layer.  The colored container or colored layer indicates wear by an eroded area which can be visually noticed through the outer translucent layer.  The conductor indicates wear by the discontinuity which is created by the wearing away of the conductor by the transfer material at the wear-through point.
Patent CA-1324025-C (CA)
Title: System and method for producing data bearing cards
Inventor: NUBSON RICHARD C
IPC: B41J13/00
Filed: 1989-09-21
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus and method for printing a graphic design on a hard plastic workpiece such as a credit card blank includes a thermal printing element which is supported by a head assembly that has been designed a single link, to have low mechanical compliance in a horizontal plane and yet to allow the print head to align with a print roller.  A cleaning assembly is further provided which includes a pair of cleaning rollers having an adhesive coating; and a novel arrangement for stripping particulate matter away from the cleaning rollers after a predetermined number of cards have been cleaned.  A number of stepper motors are provided to perform the cleaning and printing functions. The stepper motors are controlled by a local control system which monitors a number of sensors provided on the cleaning and printing stations and is subservient to an overall system controller.  The invention further includes a novel method of operation, a cassette for use with the printing station and a novel thermal printing foil.
Patent CA-1309992-C (CA)
Title: Coffee packing process and product
Inventor: GEIER JEFFREY I
IPC: B65B31/06
Filed: 1989-09-28
Granted: 1992-11-10
Abstract: COFFEE PACKING PROCESS AND PRODUCT ABSTRACT Roasted and ground coffee is packed in less than one hour after grinding by pre-purging freshly ground coffee contained in a can to below 6% oxygen at atmospheric pressure by introducing one or more gas probes through the coffee and utilizing a flow of carbon dioxide through the coffee and thereafter further reducing the oxygen content to below 2% by utilizing a partial vacuum of less than 10 inches of Hg and backflushing with carbon dioxide gas at a pressure within 1 to 5 pounds per square inch gauge and finally sealing the can while maintaining the positive headspace pressure. LPATCASE:83
Patent CA-1296756-C (CA)
Inventor: DAUDI ANWAR R
IPC: B21D53/30
Filed: 1990-08-10
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention provides a vehicle wheel comprising a wheel rim having a head seat region and a wheel-mounting disc affixed internally of said rim, characterized in that said disc comprises a center opening surrounded by a circular flange oriented axially of said disc and having an angularly spaced array of indentations extending radially inwardly of said flange and axially therealong, said indentations having radially inwardly oriented and axially extending wheel-mounting surfaces formed one on each of said indentations on a common cylinder of revolution defining the axis of said center opening.
Patent DK-166099-C (DK)
Inventor: OHLSSON LARS B
IPC: F16L23/032
Filed: 1986-04-01
Granted: 1993-07-19
Abstract: A double flange (1, 2), which is designed to, jointly with another identical double flange (1', 2'), by means of bolts (5), join to each other two pipe ends (3, 3') having two end collars (4, 4'). Said double flange is composed of two identical but also complementary halves (1, 2 and 1', 2' respectively), which each may be brought onto and around its pipe end (3 and 3' respectively) in a radial direction or in a radial as well as an axial direction and in that position preliminarily, already before a complete joining has been accomplished, lock each other, the work with the two double flanges and the joining of the pipe ends being facilitated.
Patent DK-165775-C (DK)
Inventor: KRAEMER OLE
IPC: C22C33/02
Filed: 1985-07-18
Granted: 1993-06-14
Abstract: Method for the production of a wear resistant part of a soil working tool comprising forming a mixture of 67-90% by volume of iron particles consisting of at least 97% Fe and 10-33% by volume of hard particles having a desired particle size distribution, and subsequently pressing the mixture at a pressure of at least 3500 kp/cm<sup>2</sup> to form a compact, sintering the compact at a temperature of 900-1200 °C, and optionally sinter forging the sintered compact.The method makes it possible to produce wear resistant parts consisting of an iron matrix in which hard particles with a predetermined particle size distribution are embedded.