baber/WOPTO huggingface dataset:
Patent CA-1302139-C (CA)
Inventor: SAWYER WILLIAM D JR
IPC: D21F3/10
Filed: 1987-11-06
Granted: 1992-06-02
Abstract: ABSTRACT         Sealing strips mounted on an internal vacuum box and engaged with the internal surface of a perforated rotatable shell forming a suction roll in a conventional paper making machine are constructed from a body portion of organic material having an outer surface forming an interface with an inner surface of the shell, and a PTFE inlay strip exposed at the outer surface of the sealing strip for rubbing against the interior surface of the shell and smearing across the outer surface of the sealing strip to reduce friction and improve lubrication at the interface.
Patent CA-1301399-C (CA)
Title: Process for partially curing polyarylene sulfides
Inventor: KATO TOSHIKAZU
IPC: C08K3/34
Filed: 1987-11-26
Granted: 1992-05-19
Abstract: Abstract:       In a process for partially curing a powdery poly arylene sulfide resin which comprises heating the powdery resin either in the absence or presence of oxygen while agitating so as to attain an increased melt viscosity in a range suitable for further processing or molding of the resin, an improvement comprising that the resin together with an added specific inorganic additive undergoes the partial curing treatment at temperatures in the range of from a temperature just below the melting point of the starting resin down to a temperature lower by 80°C than said melting point.  The additive is selected from the group consisting of silica, hydrophobic silica, talc and calcium carbonate and mixtures thereof.  By use of the additive the powder characteristics or fluidity properties of the start-ing resin are substantially retained during and after the partial curing treatment, the static electricity generated by agitation of the resin during the treatment is signifi-cantly reduced, and the resin is effectively prevented from forming scaling on the interior walls of the reactor vessel used for the process.  Therefore, the agitation of the powdery resin can be uniformly and efficiently effected so that a desired control of the melt viscosity is easily achieved.
Patent CA-1301409-C (CA)
Title: Cardiac valve prosthesis
Inventor: KNOCH MARTIN
IPC: A61F2/24
Filed: 1988-01-20
Granted: 1992-05-26
Abstract: ABSTRACT                      Cardiac Valve Prosthesis It is a disadvantage of the known biscuspid valve prostheses that, in completely open position, the flow separates either at the leading edge of the closing body or within the range of a nozzle confined by the closing  body  surfaces.  The  resultant  jet  randomly reattaches again to one of the closing bodies, while, behind the other closing body, an extensive wake-flow is formed together with strongly fluctuating vortices. Said condition may change with each beating cycle. The opening  behaviour  of  both  closing  bodies  becomes unequal due to the different pressure distribution. As a result, extensive deadwater areas and damage of the blood may be observed.            Said disadvantages are avoided by the invention in that each closing body (12) has a skeleton line which is  circularly  curved  in  the  area  of  the  swivel axis   (13).  The  curved  area  is  followed  by  a rectilinear area thus causing a linear cross sectional enlargement in the outlet region of the passage formed by  the  closing bodies.  The  opening  and  closing behaviour of the cardiac valve becomes more stable, deadwater areas and vortex formation are avoided to a far  extent  and the  natural  blood  flow  is  hardly deviated.            (Fig. 1).
Patent CA-1330721-C (CA)
Inventor: JANSCH MANFRED
IPC: G01M3/32
Filed: 1988-03-30
Granted: 1994-07-19
Abstract: ABSTRACT OF THE DISCLOSURE          METHOD AND APPARATUS FOR DETECTING LEAKS         In  a method of testing the gas-tightness of walls defining  a  closed chamber a hollow member of resiliently flexible  material  is inserted into the chamber. A liquid is  introduced  into  the  hollow  member until the hollow member  substantially  fills  the  chamber.  A test gas is then  introduced into the space defined between the hollow member  and the chamber walls. Escape of any test gas from the  chamber is then sensed by loss of gas pressure in the chamber  or  the presence of test gas outside the chamber. The  presence  of  the liquid-filled hollow member reduces the  amount  of  test  gas needed and the associated risks and  cost.  The chamber may be defined between segments of oil  well  pipe casing connected by threaded sockets or it may be the space within a tank.
Patent CA-1294634-C (CA)
Title: Titanium diboride/boron carbide composites with high hardness and toughness
Inventor: KNUDSEN ARNE K
IPC: C04B35/58
Filed: 1988-04-26
Granted: 1992-01-21
Abstract: ABSTRACT         A powder composition of boron carbide and titanium diboride, having an average particle size of less than 0.5 micrometers, uniformly dispersed such that all discrete concentrations of boron carbide and titanium diboride are less than or equal to 0.5 micrometers in diameter when the powder is densified, a ceramic composition results comprising titanium diboride grains, having an average grain size of less than or equal to 3 micrometers in diameter, uniformly dispersed with boron carbide grains, having an average grain size of less than 5 micrometers in diameter and improved hardness and toughness.  The powder is prepared by subjecting reactant gaseous compounds of boron, titanium, carbon, and hydrogen to laser radiation and at a pressure effective to produce an intimate mixture of boron carbide and titanium diboride.
Patent CA-1288166-C (CA)
Title: Universal query analysis system
Inventor: KUECHLER WILLIAM L
IPC: G06F17/30
Filed: 1988-04-29
Granted: 1991-08-27
Abstract: UNIVERSAL QUERY ANALYSIS SYSTEM   Abstract of the Disclosure The present invention provides a system for the input, retrieval, manipulation and analysis of stored information in an information base.  The system comprises an input device, a storage device, and an output device each capable of handling information elements.  Each of the attributes of the information elements is processed to produce a compact symbol or code corresponding to predefined ranges of values of an attribute.  These codes are then stored in correspondence with the information elements which gave rise to them.  The result of this processing is a topological map of the attributes of the information elements.  These topological maps may be retrieved and later processed to efficiently retrieve stored information elements, given any general unpreprogrammed query as input to the system.  These topological maps may also be utilized in a process to determine correlations among the various attributes of the information elements.
Patent CA-1304800-C (CA)
Title: Broken conductor guard system for power distribution systems
Inventor: REEDY IRVING
IPC: H02G7/18
Filed: 1988-05-04
Granted: 1992-07-07
Abstract: ABSTRACT OF THE DISCLOSURE     A broken conductor guard system for a single neutral power distribution system in which at least one high voltage power conductor is suspended between power poles with a neutral conductor being similarly suspended between the poles vertically below the high voltage conductor includes a broken conductor guard comprising an elongated rod with hook-shaped ends clamped with a clamping mechanism to a single neutral conductor in a horizontal plane and  transverse  to the neutral  conductor.        Apparatus is coupled to the clamping mechanism for preventing rotation of the broken conductor guard about the neutral conductor so as to maintain the guard in the horizontal plane.
Patent CA-1301603-C (CA)
Title: Method of annealing an aperture shadow mask for a color cathode ray tube
Inventor: GRAY THOMAS H
IPC: H01J9/14
Filed: 1988-06-01
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE         An aperture mask comprised of a nickel-iron alloy having a low thermal expansion for a color CRT is produced by combining a first annealing to produce a low coercive force and mechanical properties desirable for a warm forming operation during which a desired profile of the mask is produced with minimized springback and a second annealing after forming to provide a stress free low coercive force mask also having an oxidized high thermal emissivity surface.          Wherein the process requires control of the atmospheres and oxidizing potentials in the two annealing steps.
Patent CA-1289593-C (CA)
Inventor: LORENCE BRIAN S
IPC: B60N3/02
Filed: 1988-06-23
Granted: 1991-09-24
Abstract: ASSIST STRAP TERMINATION STRUCTURE                 ABSTRACT OF THE DISCLOSURE A termination structure for an assist strap includes a rectangular, ring-like mounting bracket used to secure an end of the assist strap and a generally U-shaped assist strap termination piece to a vehicle. The termination piece, which has first and second legs, and assist strap extend from opposite open ends of the bracket.  The first leg, the end of the assist strap and the base of the bracket are fastened to each other and to the vehicle by a screw.  The distal end of the second leg is positioned within the bracket so that the assist strap appears to have a loop at its end.  The second leg has an L-shaped first fastener element secured to its interior surface which engages the upstanding head of the screw, which serves as a second fastener element.  The fastener elements are positioned and sized so that the distal end of second leg, which is resilient, is compressed within the bracket to keep the fastener elements engaged to prevent removal of the distal end of the second leg.
Patent CA-1336751-C (CA)
Inventor: HOOGSTAD BRUIN
IPC: A23F3/22
Filed: 1988-06-24
Granted: 1995-08-22
Abstract: A particulate instant tea product comprising:            (a) from 2 to 25% by weight of fat, (b) from 5 to 25% by weight of an edible emulsifying proteinaceous material, (c) from 10 to 40% by weight of a hydrolyzed starch, (d) from 10 to 40% by weight of tea solids, (e) from  0 to 10% by weight of water and (f) from  0 to 30% by weight of milk sugar.            Upon reconstitution with water this product gives a beverage which in taste and appearance is similar to tea with milk.
Patent CA-1339616-C (CA)
Title: Method for producing fine art replicas
Inventor: KHADEM FEREYDOON
IPC: G03C11/12
Filed: 1988-06-28
Granted: 1998-01-06
Abstract: Photographs  have  been  reproduced  on  canvas  or canvas-like  paper  to  produce  a   product   resembling   a painting.   A product more closely resembling a painting or original artwork can be produced according to the invention by gluing a plastic sheet to the outer or emulsion surface of a print or photograph or line drawing,  removing  the  paper backing  from  the  emulsion  using  a  solvent or water,  and gluing the plastic sheet with the picture thereon to a canvas or linen backing sheet, the emulsion appearing on the outer surface of the plastic sheet.  Paint can be readily applied to  the  emulsion  to  repair defects  or  to  enhance  the end product.
Patent CA-1340413-C (CA)
Inventor: LAW SAY-JONG
IPC: G01N33/544
Filed: 1988-07-07
Granted: 1999-03-02
Abstract: A method for producing a phosphodiester-ligand-analyte conjugate, which comprises (a) reacting a polar phospholipid with a ligand to produce a polar phospholipid-ligand composite and (b) reacting the polar phospholipid-ligand composite with an analyte capable of coupling to the ligand of the polar composite, to produce the phosphodiester-ligand-analyte conjugate.  The conjugate is subsequently purified, preferably using preparative chromatography, and then incorporated into immunoactive liposomes.
Patent CA-1329265-C (CA)
Inventor: DAVIS RICHARD B
IPC: G01B11/00
Filed: 1988-07-28
Granted: 1994-05-03
Abstract: ABSTRACT OF THE DISCLOSURE      There is described an improved apparatus for measuring the length of individual items in a group of items, so arranged together in bundles, that access to or vision of said individual items is limited to the viewing of their ends, said apparatus including two sets of stereocameras for photographing each visible end of the individual items thus capturing two film images of each such visible end, and an analyzer for analysing the film images so as to make accurate length determinations.
Patent CA-1297562-C (CA)
Title: Radar intrusion detection system
Inventor: SEED WILLIAM R
IPC: G01S13/36
Filed: 1988-08-08
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE     A  bistatic  Doppler  radar  intrusion  detection  system which  utilizes  a high  duty-cycle  phase-coded  pulse  compression signal to provide a range-gated detection zone is described.  The combined  transmit  and  receive antenna beam patterns  define the shape  of  the  detection  zone  in  azimuth  and  elevation.   The distance from the antennas to the detection zone and depth of the detection  zone  are determined  by  the  pulse  compression  code sequence selections.  The system consists of a transmitter having a code sequence generator for generating one of a selected number of codes and a code sequence.  An antenna transmits the modulated signal through the detection zone.  A programmable digital delay circuit is used to provide a delayed replica of the code sequence and  thereby  specify  the  detection  zone  range.   A  receiver  is provided having an antenna for receiving signals scattered from the detection zone.  The received signal is split into two paths, in-phase  and  quadrature-phase  and  reference  signals  from  the delayed replica used to synchronously detect the received signal.          Processing circuitry computes the Doppler frequency spectra of the received  signal  and  performs  automatic  detection  of  targets traversing the detection zone.
Patent CA-1321302-C (CA)
Title: Journal for a hollow roll body, specifically for a drying cylinder of a paper machine
Inventor: KADE WERNER
IPC: F16C19/52
Filed: 1988-09-09
Granted: 1993-08-17
Abstract: ABSTRACT OF THE INVENTION    A hollow shaft bearing for a drying cylinder of a paper machine.  The hollow shaft bearing is provided with thermal insulation between the interior of the hollow shaft and the surface of the journal on which a bearing is supported.  The insulation is formed by a coaxial annular space formed between the inside wall of the hollow shaft and the outside wall of the hollow shaft which supports the bearing.
Patent CA-1333197-C (CA)
Inventor: SAGEY WILLIAM E
IPC: G01S5/06
Filed: 1988-10-17
Granted: 1994-11-22
Abstract: A vehicle location system incorporating a plurality of ground  enhancement  stations  (10)  and  at  least  one satellite  (8)  to  receive  encoded transmissions  from a radio transmitter aboard a user vehicle (2).  The satel-lite (8) transmits the signals received directly from the user and those relayed by the ground enhancement stations (10) to a base station (14) where a computer (88) calcu-lates the position of the user on the basis of the time difference between the time of arrival of the signals. The use of the ground enhancement stations (10), located throughout the area in which the user is to be located provides lower geometric dilution of precision than purely satellite or purely ground base system, and in combination with the relatively simple transmitter  (44)  aboard the vehicle  (2)  and transponders at the ground enhancement stations (10) and satellite (8), substantially reduces the cost of deployment of such a system.
Patent CA-1306560-C (CA)
Title: Polyamide resin composition and a shaped article of it
Inventor: TERASHIMA TAKESHI
IPC: C08L77/00
Filed: 1989-03-13
Granted: 1992-08-18
Abstract: Abstract of the Disclosure A polyamide resin composition comprising:         (a)  5 to 65% by weight of at least one polyamide resin selected from the group consisting of a polyamide having caproamide units, a polyamide having hexamethylene adipamide units and a polyamide having aromatic rings as a main molecular unit in the polymer, (b)  65 to 30% by weight of a polyamide resin which is obtained by melt polymerization of at least one compound selected from the group consisting of an aliphatic aminoacid and lactum having 11 or 12 carbon atoms and an equivalent molar salt having 13 to 24 carbon atoms of an aliphatic diamine having 6 to 12 carbon atoms and an aliphatic dicarboxylic acid having 6 to 12 carbon atoms, and (c)  30 to 5% by weight of a polyphenylene oxide.  This polyamide resin composition is excellent in properties of a thermal resistance, a heating-cooling repeat resistance, a rigidity, a toughness and a road antifreezing agent resistance, and a shaped article of it is useful for an exterior part of automobile.
Patent CA-1323263-C (CA)
Title: Pressure controller
Inventor: SCHILD ROLF
IPC: A61G7/057
Filed: 1989-03-14
Granted: 1993-10-19
Abstract: ABSTRACT                Pressure Controller A pressure controller for controlling fluid pressure in an alternating pressure pad which comprises means (4) sensitive to the fluid pressure and adapted to open a valve (15) when the pressure exceeds a predetermined value, fluid supply means (8) connected at one end to said valve (15) and at the other end being adapted for connection to a pump (6) for inflating the pad, the fluid supply means (8) being arranged, in use, to receive pressure exerted by a patient on the pad and to be compressible in dependence upon the pressure exerted by the patient to reduce the escape of fluid from the valve (15) when the valve (15) is open.  Thereby, causing a proportion of fluid to continue to inflate the pad.
Patent CA-1308287-C (CA)
Title: Slat fence with retainer wire construction
Inventor: SCHOENHEIT JOSEPH W
IPC: E04H17/06
Filed: 1989-03-17
Granted: 1992-10-06
Abstract: The Abstract of the Disclosure A slat assembly for insertion in a chain link fence includes a plurality of elongate, first slat members which are interwoven between vertically consecutive links of the fence.         The first slat members rest on a second slat member which is interwoven between horizontally consecutive lower links in the fence.  A flexible retainer is constructed and arranged to be received in apertures formed in the first slat members.  The retainer has terminating means located at the ends thereof for securing the retainer to the slats.
Patent CA-1315363-C (CA)
Title: Frequency synthesizer with spur compensation
Inventor: MARTIN FREDERICK LEE
IPC: H03L7/18
Filed: 1989-03-28
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE:      A synthesizer circuit with spur compensation utilizes fractional division in the synthesizer loop. Two accumulators are utilized for determining the divisor value N. The capacity of the two accumulators is selectable. An offset value is selectively introduced into the accumulators in order to produce a waveform having an acceptable spurious content.
Patent CA-1319891-C (CA)
Title: Electro-acoustical system
Inventor: BERKHOUT AUGUSTINUS J
IPC: H04S1/00
Filed: 1989-03-28
Granted: 1993-07-06
Abstract: ABSTRACT         A method for processing the sound emitted by one or more sound sources in a listening room.  The method comprises recording said sound by means of a number of microphones.  Processing the signals based on the processed signals supplied from the processor to a number of loudspeakers distributed across the listening room, the number of microphone signals and loudspeaker signals.  The microphone array is arranged to pick up the wave field of the direct sound originating from all of the sources on the stage.          Following the processing the loudspeaker array will, with a correct loudspeaker spacing, generate a wave field, that approaches a natural sound field in an acoustically ideal hall.
Patent CA-1326436-C (CA)
Inventor: FOCKE HEINZ
IPC: B65D85/10
Filed: 1989-05-03
Granted: 1994-01-25
Abstract: A B S T R A C T      Packaging for a plurality of small packs, especially cigarette packs.  Several small packs may be combined to form small bundles, so-called sticks.  The group of cigarette packs is held together by means of a wrapping consisting of paper, cardboard or film material.  The known wrappings make it difficult to make markings at a later stage on free surfaces, for example on a bottom wall of the cigarette packs.  So that at least the bottom walls of the cigarette packs are exposed or are accessible, the wrapping is open on at least one side.  The cigarette packs are connected to one another and to the wrapping by means of an adhesively bonded film strip or by means of individual strips.  Markings can be made on the film strip.  The packaging is simple to produce mechanically and is easy to handle.
Patent CA-1338018-C (CA)
Title: 6-phenoxymethyl-4-hydroxytetrahydropyran-2-ones and 6- thiophenoxymethyl-4-hydroxytetrahydropyran-2-ones and the corresponding dihydroxycarboxylic acid derivatives, salts and esters, processes for the preparation of these compounds, their use as pharmaceuticals, pharmaceutical preparations and novel phenols and thiophenols
Inventor: JENDRALLA HEINER
IPC: A61K31/185
Filed: 1989-05-12
Granted: 1996-01-30
Abstract: Novel 6-phenoxymethyl-4-hydroxytetrahydropyran-2-ones and 6-thiophenoxymethyl-4-hydroxytetrahydropyran-2-ones  and the corresponding dihydroxycarboxylic acid derivatives, salts and esters, processes for the preparation of these compounds, their use as pharmaceuticals, pharmaceutical preparations and novel phenols and thiophenols Novel compounds of the general formula I                                        I     and  the  corresponding  open-chain  dihydroxycarboxylic acids of the formula II       II     in which X,  Y and  Z  have  the meanings  given,  and pharmacologically tolerated salts thereof with bases and pharmacologically tolerated esters thereof, processes for the  preparation  of  these  compounds,  their  use as pharmaceuticals  and  pharmaceutical  preparations  are described. Novel phenols and thiophenols of the formula III                            III     in which X, Y and Z have the meanings given, are also described.
Patent CA-1315833-C (CA)
Title: Impulse sprinkler with deflector
Inventor: WHITEHEAD STEPHEN P
IPC: B05B3/16
Filed: 1989-05-29
Granted: 1993-04-06
Abstract: IMPULSE SPRINKLER WITH DEFLECTOR                 Abstract of the Disclosure An impulse sprinkler.  The sprinkler includes a base and a main body having a nozzle for dispensing water. The main body also includes a frame defining a window. The main body is pivotably mounted on the base so that the main body can rotate about a vertical axis.  The sprinkler further includes an impulse arm for deflection by water dispensed by the nozzle with the impulse arm being pivotably mounted on the main body so that the arm extends through the window and is also rotatable about a vertical axis.  A spring is positioned in the window for biasing the impulse arm to a position where it will be deflected by water from the nozzle.  The sprinkler also includes an elognate deflector pivotably carried by the main body so that the deflector can rotate about a horizontal axis.  This deflector is of one-piece molded construction and has a deflector head overlying the nozzle, a tail for grasping by the user, and an intermediate portion supported by the main body.