baber/WOPTO huggingface dataset:
Patent CA-1282667-C (CA)
Title: Process for retarding and controlling the formation of gels or precipitates derived from aluminum and corresponding compositions, plus the corresponding applications - in particular regarding oil wells
Inventor: PARKER ALLEN
IPC: C01F7/00
Filed: 1986-06-30
Granted: 1991-04-09
Abstract: ABSTRACT OF THE INVENTION        The invention concerns the plugging of underground formations.      The plugging agent used is aluminum hydroxychloride with hexamethylene tetramine, or a weak-base activator such as urea.      The invention has applications in the treatment of oil wells and the traversed formations.
Patent CA-1280175-C (CA)
Title: Medical electrode with reusable conductor and method of manufacture
Inventor: CARTMELL JAMES V
IPC: A61B5/0408
Filed: 1986-07-15
Granted: 1991-02-12
Abstract: ABSTRACT A medical electrode intended for short term use has a disposable electrode pad provided with a socket and a reusable electrode conductor which is attached to a lead wire and which has a ridged body adapted to enter and be retained by the socket.  The pad includes a pair of spaced foam sheets with patient-contacting adhesive layers on their lower surfaces.  An electrolyte gel matrix, preferably formed from conductive adhesive urethane hydrogel, is located between the foam sheets.  The socket is formed in a relatively stiff socket plate that overlies the gel matrix and the foam sheets.  The socket includes a bore located over the gel matrix shaped to receive the electrode conductor, which is slightly larger than the bore, and may optionally include outwardly extending slits projecting from the bore.  A method of manufacturing a strip of the electrode pads on a release liner on a continuous basis is disclosed.  In a modification for longer term monitoring uses, the electrode pads are constructed to confine the gel matrix to avoid gel dry out and the socket and the conductor are provided with a cooperating key and keyway for restraining relative movements therebetween.
Patent CA-1276202-C (CA)
Title: Liftable axle with load control
Inventor: CHERRY HERBERT J
IPC: B62D61/12
Filed: 1986-10-24
Granted: 1990-11-13
Abstract: LIFTABLE AXLE WITH LOAD CONTROL              ABSTRACT A load control (24) for a vehicle (10) having a frame (14), a load-bearing body (12) mounted on the frame (14) and rear wheel-bearing axles.  The rear wheel-bearing axles support the frame (14) through suspension systems.  The load control (24) selectively renders one of the rear axles non-load-bearing or load-bearing  and includes a sensor for sensing a load between the load-bearing body (12) and frame (14) and an actuator for rendering one of the rear axles load-bearing when the load sensed by the sensor is above a predetermined level and for rendering the rear axle non-load-bearing when the load sensed by the sensor is below a predetermined level.
Patent CA-1289582-C (CA)
Title: Front air knife top vacuum corrugation feeder
Inventor: ROLLER GEORGE J
IPC: B65H3/12
Filed: 1986-11-05
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE A top vacuum corrugation feeder employs a vacuum feedhead working in conjunction with an air knife to feed sheets from the top of a stack. The vacuum feedhead includes a vacuum plenum with a plurality of perforated feed belts entrained around it. The feed belts have a diamond shaped knurl pattern on their sheet engaging surfaces in order to obtain a higher pressure differential across the sheet material during sheet acquisition.
Patent CA-1292887-C (CA)
Title: Method in the bleaching of cellulose pulp
Inventor: GIDLUND CLAES-GORAN
IPC: D21C9/10
Filed: 1986-11-24
Granted: 1991-12-10
Abstract: Method in the bleaching of cellulose pulp ABSTRACT     When  bleaching  cellulose  pulp with  strongly oxidative bleaching agents there is the need for an analysis method which  is  capable  of  quickly providing a  correct  analysis result  without  complicated  manipulation  of  the  bleaching liquor sample. The present invention satisfies this need and relates to a method for measuring the chemical content of bleaching  liquor  within  the  cellulose  pulp  industry,  in which a sample of the bleaching liquor is brought together with one or more reagents, of which at least one is chemi-luminescent so as to result in the emission of light, and the intensity of the light is determined as a measurement of the chemical content. The method is characterized in that a constant flow of reagent is advanced continuously through a conduit system and in that a small quantity of sample liquor is introduced sporadically or intermittently into said rea-gent flow so as to produce a chemiluminescent reaction, and in that the reaction, and therewith the emission of light, is caused to continue for a given period of time such that the light  intensity falls within the measuring range of a light responsive device, and in that, with repeated measure-ments the light intensity is constantly measured after said time interval, and in that measured values of the light in-tensity are converted to the content of bleaching chemical.    The invention also relates to apparatus for carrying out the aforedescribed method.
Patent CA-1283024-C (CA)
Title: Solid block chemical dispenser for cleaning systems
Inventor: COPELAND JAMES L
IPC: A47L15/44
Filed: 1986-12-10
Granted: 1991-04-16
Abstract: Abstract A solid block chemical dispenser for cleaning systems.  The dispenser housing retainably supports a three-dimensional screen comprising: (i) a lower, substantially horizontal, circumferential support and extension portion in supportable contact with the housing and extending towards the central axis of the housing, (ii) a substantially vertical circumferential wall integrally coupled with the lower support and extension portion, the wall extending into the storage portion of the housing and defining a generally longi-tudinal elongated torroidal cavity between the housing and the wall, and (iii) a substantially flat, horizontal top portion integrally coupled with the wall for sup-porting the block of chemical thereabove.  A spray-forming nozzle is mounted within the collector portion below the top portion of the support screen for direct-ing a spray of water at substantially the entire down-wardly facing surface of the chemical block supportably retained above the top portion of the support screen.          The dissolved wash chemical passes through the support screen, is collected by the collector portion of the housing, and directed to its utilization point.  The top portion of the support screen contacts the solid chemi-cal only such that the container is allowed to fall unimpaired by force of gravity into the generally torroidal cavity as the chemical is used.  Spray control means, either manual or electronic, control the spray of water through the nozzle in response to a control signal.  The dispenser is configured for mounting to a vertical surface and is loaded through an upper access port normally closed by a door.  A safety switch pre-vents the spray of water from the nozzle whenever the door is open.
Patent CA-1275856-C (CA)
Title: Non-electric blasting initiation signal control system, method and transmission device therefor
Inventor: THURESON GARY R
IPC: F42D1/06
Filed: 1986-12-19
Granted: 1990-11-06
Abstract: ABSTRACT           A nonelectric blasting system, method and device is disclosed for use in establishing a time sequential firing of blasting elements, the device comprised of an elongated tube which contains a low velocity deflagration mixture adhered to the inner walls of said tube.  The device, by itself, controls a desired initiation pattern of a plurality of blasting elements by transmitting an initiation signal at a much reduced velocity than conventional shock tube or explosive cord by use of preselected material mixtures.
Patent CA-1296981-C (CA)
Title: Block pattern tire
Inventor: IUCHI MUNENORI
IPC: B60C11/13
Filed: 1986-12-23
Granted: 1992-03-10
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to a block pattern tire and in particular to an all-weather steel radial tire for truck and bus. The block pattern tire comprises circumferential grooves and extending circumferentially of the tire; lateral grooves, each extending between the circumferential grooves to form blocks therebetween, and having the depth decreasing toward the middle portion of the lateral groove from the circumferential grooves to have the bottom of the lateral groove reached to the surface of the blocks at the middle portion of the lateral groove; and nar-row grooves, each passing through the lateral groove to connect the adjacent circumferential grooves and having the depth as deep as the circumferential grooves and the width enough to close at the time of ground contacting.
Patent CA-1328527-C (CA)
Inventor: KANEMURA YOSHINOBU
IPC: C08G18/38
Filed: 1987-02-26
Granted: 1994-04-12
Abstract: ABSTRACT      Disclosed herein are a high-refractivity plastic lens resin obtained by polymerizing under heat at least one polyisocyanate (I):       (I) wherein X means a hydrogen, chlorine or bromine atom or a methyl or ethyl group, Z is a hydrogen atom or a methyl group, a stands for an integer of 1 - 4, b is an integer of 2 - 4, and a + b is not greater than 6 (a + b ? 6), with at least one polythiol (II):                      (II) wherein R means a methyl, ethyl, chloromethyl or bromo-methyl group, m stands for an integer of 0 - 2 and n is 4 - m and/or at least one polythiol (III):                         (III) wherein X means a hydrogen, chlorine or bromine atom or a methyl or ethyl group, Y denotes an oxygen or sulfur atom, r stands for 0 or 1, s is an integer of 0 - 2, p is an integer of 2 - 4, q is an integer of 1 - 4 and p + q is not greater than 6 (p + q ? 6), in such amounts that the -NCO/-SH molar ratio falls within 0.5 - 3.0, as well as a lens made of the above resin.
Patent CA-1300514-C (CA)
Title: Solid antitartar mouth deodorant composition
Inventor: BARTH JORDAN
IPC: A61K8/365
Filed: 1987-03-09
Granted: 1992-05-12
Abstract: SOLID ANTITARTAR MOUTH DEODERANT COMPOSITION               Abstract A non-cariogenic, long acting, slow dissolving solid antitartar and mouth deodorant having improved taste, and a method of providing extended mouth odor reduction and control tartar formation comprising a zinc compound, which provides zinc, an ionone  ketone terpene derivative and flavor, preferably mint, as the essential active ingredients in a sugar-free carrier.
Patent CA-1283905-C (CA)
Title: Cephalosporin derivatives, processes for their preparation and antibacterial agents
Inventor: NAKAGAWA SUSUMU
IPC: A61P31/04
Filed: 1987-03-19
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE            A compound having the formula:                                                  (I) wherein R is a vinyl, phenyl or aralkyl group which may be substituted by at least one substituent selected from the group consisting of an alkyl group having from 1 to 4 carbon atoms, a hydroxyl group, an alkoxy group having from 1 to 4 carbon atoms, an acetoxy group, a carboxyl group, a halogen atom and a phenyl group which may be substituted by one or two substituents selected from the group consisting of a hydroxyl group, an acetoxy group, a carboxyl group and a halogen atom; or a pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.  The compounds are useful as anti-bacterial agents.
Patent CA-1287812-C (CA)
Title: Method of suppressing sodium poisoning of cracking catalysts during fluid catalytic cracking
Inventor: ENGLISH ALAN R
IPC: C10G11/02
Filed: 1987-03-23
Granted: 1991-08-20
Abstract: ABSTRACT OF THE DISCLOSURE A process is disclosed for passivating sodium contaminants in FCC feed using tin or tin compounds.
Patent CA-1292699-C (CA)
Title: Agent for the oxidative dyeing of hair
Inventor: KONRAD EUGEN
IPC: A61K8/46
Filed: 1987-03-26
Granted: 1991-12-03
Abstract: ABSTRACT OF THE DISCLOSURE           An agent and a process for the oxidative dyeing of hair based on a combination of coupling substance and develop-ing substances  a) 5-amino-2-methyl-phenol being used as cou-pling substance;  b) 4-amino-3-methyl-phenol; and  c) 1,4-diamino-benzene and/or 2,5-diamino-toluene as developing sub-stances, also in the form of the physiologically compatible salts.  The agent allows the production of neutral colour tones which are free from yellow components and almost-free from blue components and apart from the high colour intensity and luminosity; they have an excellent colour evenness at very good absorption capacity.
Patent CA-1271412-C (CA)
Title: Enhanced oil recovery process utilizing in situ steam generation
Inventor: FLEMING GRAHAM C
IPC: E21B43/243
Filed: 1987-03-27
Granted: 1990-07-10
Abstract: ABSTRACT OF THE INVENTION A process for recovering hydrocarbons from a porous hydrocarbon-bearing formation comprising: (a) injecting water and oxygen into the formation through an injection means and causing at least a portion of the oxygen to combust with a portion of the hydrocarbons in the formation, provided that the oxygen in the formation effectively remains a distance away from the production means, e.g., production well or wells; (b) injecting water, oxygen and hydrocarbons into the formation and causing at least a portion of the oxygen to combust with at least a portion of the injected hydrocarbons; and (c) recovering hydrocarbons from the formation through the production means.
Patent CA-1293054-C (CA)
Title: Interactive image recording method and means
Inventor: KUEHNLE MANFRED R
IPC: H04N5/30
Filed: 1987-06-10
Granted: 1991-12-10
Abstract: Abstract of the Disclosure An electronic read/write or microscope-camera system which can receive and store very low energy optical and equivalent electronic signals on a special opto-electronic tape or medium as varying charge density distributions over the imaged frame.  Images are retrieved from the tape or medium by scanning the tape or medium with a focused electron beam which causes the tape or medium to emit secondary electrons as a charge density modulated return beam current.  The electrons in the return beam are collected and amplified to develop an electrical signal representative of the image stored on the tape or medium.  A method of applying images to and retrieving them from the tape or medium is also disclosed.
Patent CA-1338365-C (CA)
Title: Synthetic antigens of sialic acid and derivatives thereof
Inventor: ROY RENE
IPC: C07H15/04
Filed: 1987-08-07
Granted: 1996-05-28
Abstract: A compound X-Y wherein X comprises sialic acid, a sialic acid derivative or and oligosaccharide terminating in a sialic acid or sialic acid derivative if multibranched at the end of at least the largest branch, and, Y represents coupling means which allows an antibody to be raised to X when the compound is coupled to a carrier through the coupling near  Y and the coupled compound used to raise said antibody.  These compounds show utility in that they, and antibodies raised against these, can be used in detecting and diagnosing cancers.
Patent CA-1283060-C (CA)
Inventor: TAIG ALISTAIR G
IPC: F16D65/28
Filed: 1987-09-03
Granted: 1991-04-16
Abstract: ELECTRICALLY OPERATED DISC BRAKE The electrically operated disc brake (10, 110, 310, (10) may be operated by either hydraulic pressure and an electric motor or operated solely by means of an electric motor. The electric motor (90, 340, 490) drives a sun gear (52, 352, 452) of a planetary gear assembly (50, 150, 350, 450). The planetary gear assembly (50, 150, 350, 450) includes a fixed ring gear (70, 370, 470) and a rotatable ring gear (80, 180, 380, 480), the rotatable ring gear (80, 180, 380, 480) having fewer teeth than the fixed ring gear (70, 370, 470) so that rotation of the planetary gears (54, 56, 58) effects a slower rate of rotation of the rotatable ring gear (80, 180, 380, 480). The rotatable ring gear (80, 180, 380, 480) engages a screw (88, 188, 388, 488) which is connected with the piston (30, 130, 330, 430). The piston (30, 330, 430) may be displaced by hydraulic fluid for a service application and the electric motor (40, 340, 440) utilized for a parking application. Alternatively, the piston (130) may be displaced by the electric motor (40) for both service and parking brake applications.
Patent CA-1304350-C (CA)
Title: Scissor jack stand
Inventor: LIEGEL REINALD D
IPC: B66F3/22
Filed: 1987-11-04
Granted: 1992-06-30
Abstract: ABSTRACT OF THE INVENTION     An adjustable support device comprising a first elongated member having an upper end, a second elongated member having an upper end, a mechanism for connecting the first member to the second member such that the upper ends of the first and second members are vertically, adjustably movable in response to movement of the first elongated member with respect to the second elongated member, and a ratch connected between a first point located on the first member and a second point located on the second member for releasably securing the first and second points in spaced relationship and for selectively varying the spacing between the first and second points.
Patent CA-1289410-C (CA)
Title: Braille printing plate
Inventor: OKADA CHOZO
IPC: B41J3/32
Filed: 1987-12-02
Granted: 1991-09-24
Abstract: ABTRACT A braille printing plate comprising a male part having braille characters formed by balls and a female part to be used in combination with the male part and having dot receptacle holes formed by copying the braille characters of the male part. The male part comprises a braille printed sheet having dot holes loaded with the balls which are thereafter secured thereto.  The female part is formed with dot receptacle holes by copying the braille characters of the male part.
Patent CA-1285339-C (CA)
Title: Method and apparatus for transmitting and receiving a digital signal
Inventor: ROEMPP CLAUS
IPC: H04J3/16
Filed: 1987-12-17
Granted: 1991-06-25
Abstract: Abstract A method and arrangement for transmitting a digital signal with a low bit rate in a time section, provided for higher bit rates, of a time division multiplexed signal.  At a transmitting end the first digital signal with a low bit rate is over-sampled with a first clock signal assigned to this time section.  A second digital signal which results is transmitted in the time division multiplexed signal to a receiving end.  Following the demultiplexing of the time division multiplexed signal, this second digital signal is sampled with a second clock signal, corresponding to its bit rate, omitting forbidden phase position zones, and results in a fifth digital signal.  The forbidden phase position zones are defined by a shift register, an exclusive-NOR-gate, an upwards/downwards counter and a logic unit.  Double samplings are prevented in that the phase of the second clock signal is shifted via the resetting of a frequency divider.  The method in accordance with the invention permits for example, the occasional transmission of a digital signal with a lower bit rate in a digital signal multiplex device designed for the grouping of thirty-two 64 kbit/s-signals.
Patent CA-1309833-C (CA)
Title: Telescopic pole
Inventor: BAILEY ROBERT A
IPC: E04H12/18
Filed: 1987-12-30
Granted: 1992-11-10
Abstract: ABSTRACT           A telescopic pole system for supporting a bird feeder, light system or the like comprises an elongated lower tubular pole component of circular cross-section, means for supporting said lower pole component, an upper tubular pole component of circular cross-section having an inner diameter greater than the outer diameter of the lower pole component, said lower pole component having an upper end of expanded cross-section for a snug, sliding fit within the upper pole component, and a collar secured to the lower end of the upper pole component having centering means for providing a snug, sliding fit over the lower pole component as the upper component is axially extended and retracted relative to the lower component, said collar having locking means for locking the upper component on said lower component.
Patent CA-1304413-C (CA)
Inventor: SIEGL WALTER O
IPC: C08G14/00
Filed: 1988-01-14
Granted: 1992-06-30
Abstract: Abstract of the Disclosure This invention relates to an water-soluble or water-dispersible diphenolamine oligomeric metal-chelating compound, method for making same, aqueous composition comprising the compound useful to deposit a corrosion preventive and adhesion promoting coating on a metal substrate and a method for doing same.  The composition has a pH of between about 2 and about 10.
Patent CA-1316542-C (CA)
Title: Treatment of alkoxysilanes
Inventor: MOORHEAD KENNETH W
IPC: C07F7/20
Filed: 1988-01-18
Granted: 1993-04-20
Abstract: TREATMENT OF ALKOXYSILANES                          ABSTRACT           A process in which the residual chloride impurities in crude alkoxysilanes with atmospheric boiling points below 130°C. are reduced in order to render the resultant alkoxysilanes more suitable as a starting intermediate for the preparation of other chemical compounds and for use in electronics applications is described. The essence of the process is contacting the alkoxysilane with an alkaline metal compound using superatmospheric pressure to achieve a treatment temperature of greater than 130°C.
Patent CA-1310395-C (CA)
Title: Electromagnetic shielding panel
Inventor: CLARKE LESLIE T
IPC: H05K9/00
Filed: 1988-01-29
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE                   ELECTROMAGNETIC SHIELDING PANEL      The invention concerns an electromagnetic shielding panel for attenuating electromagnetic radiation typically in the frequency range 20 MHz to 10,000 MHz.  In one embodiment of the invention, the panel comprises a laminate of two panes of glass one of which includes an electroconductive coating sandwiched between the two sheets of glass is a plastics interlayer (i) into which is embedded four strips of fine electroconductive mesh which lie along the edge of the laminate and which are in electrical contact with the coating.  In another embodiment of the invention, the coated glass includes peripheral bus bars which are in electrical contact with the coating.  The mesh and bus bars are arranged to make electrical contact with a metal frame which may be earthed.  Alternatively, no direct mechanical contact is made between the frame and the coating and a capacitive coupling (cc) suffices.
Patent CA-1307170-C (CA)
Title: Single leg tension leg platform
Inventor: WHITE CHARLES N
IPC: B63B35/44
Filed: 1988-04-14
Granted: 1992-09-08
Abstract: SINGLE LEG TENSION LEG PLATFORM               Abstract of the Disclosure A single leg tension leg platform is a semi-submersible structure moored at a deep water site by hybrid mooring consisting of a single tension leg or cluster of tendons attached to a central column and, optionally, a conventional spread mooring system.  The central column is surrounded by peripheral stability buoyant columns symmetrically arranged and typically in number from about 3 to 8.  All the vertical tendons are located in a tight cluster at the center of the platform.  This means that the tendons no longer effectively restrain pitch/roll or yaw motion.  The role of the tendon cluster is essentially the direct, stiff elastic restraint of  heave  and  compliant  restraint  of  horizontal offset. Pitch/roll  response  is  controlled  primarily  by  careful distribution of peripheral buoyancy and detuning.
Patent CA-1329943-C (CA)
Inventor: ISOBE AKIRA
IPC: H01H9/54
Filed: 1988-04-28
Granted: 1994-05-31
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a change-over switch suitable for use in the case of connecting, e.g., a camera integrated type VTR  to  a television receiver.          A first input terminal and an output terminal are closely arranged.  The first input terminal, the output terminal, and switching means are connected by a parallel line consisting of first and second signal lines.  The first input terminal and the output terminal are connected by the first switching operation.  The second input terminal and the output terminal are connected by the second switching operation.  Thus, the camera integrated type VTR, TV antenna, and TV receiver can be attached without complicatedly connecting the cables and without extending the cable from the antenna.