baber/WOPTO huggingface dataset:
Patent CA-1295417-C (CA)
Title: Phase control reflector element
Inventor: APSLEY NORMAN
IPC: H01Q3/46
Filed: 1985-02-26
Granted: 1992-02-04
Abstract: ABSTRACT            PHASE CONTROL REFLECTOR ELEMENT    A microwave phase control reflector element comprises a planar dipole adjacent to a dielectric substrate.  The phase of radiation reflected from the dipole is controlled by a variable impedance load connected between the two dipole limbs.  The dielectric constant of the sub-strate material is such that the dipole couples only to radiation incident from the substrate side.  The variable impedance is either comparable to the dipole impedance and reactive, or equivalent to an open or short circuit, to provide efficient reflection.  A pair of crossed dipoles may be utilised to achieve independent control of both the phase and the polarisation of the reflected radiation.  Many dipoles may be combined, using a common substrate, to provide a phased array.  The dipoles may be used with a transmitter and arranged for phase modulation, beam direction control or duplex functions.
Patent CA-1264327-C (CA)
IPC: C07C309/42
Filed: 1985-06-13
Granted: 1990-01-09
Abstract: Per-acids and per-acid precursor compounds of the general type RXAOOH and RXAL, wherein R is a hydrocarbyl group, X is a hetero-atom, A is a carbonyl bridging group and L is a leaving group, especially oxybenzenesulfonate, are useful bleaching compounds for fabrics. Laundry products containing same are disclosed.
Patent CA-1341021-C (CA)
Title: Hepatitis surface antigen particle vaccine
Inventor: VALENZUELA PABLO D T
IPC: C12P21/00
Filed: 1985-06-18
Granted: 2000-06-13
Abstract: Vaccines are provided produced by hybrid DNA technology for Hepatitis B virus comprising Hepatitis B 5 surface antigen particles containing a human polyalbumin binding site receptor. Constructs are provided for expression of the vaccine protein, which upon transformation, in an appropriate host results in the production of particles useful as vaccines.      The yeast strain S. carlsbergensis strain 2150-2-3 (pHBpreS-347/33T) was deposited at the A.T.C.C. on 14 June 1984 and given Accession No. 20716.
Patent CA-1275510-C (CA)
Inventor: YING WEI-CHI
IPC: C02F3/12
Filed: 1985-12-19
Granted: 1990-10-23
Abstract: ABSTRACT      This invention relates to the treatment of chemical process wastewaters and chemical waste landfill leachates containing obnoxious and hazardous halogenated organic chemicals by the use of a combination of physical, chemical and biological processes to produce a liquid discharge acceptable to the environment in an efficient and economical manner.
Patent CA-1275024-C (CA)
Title: Industrial textile fabric
Inventor: BOUTWELL DAVID G
IPC: D03D15/00
Filed: 1986-07-07
Granted: 1990-10-09
Abstract: ABSTRACT OF THE DISCLOSURE A textile fabric employs a corrugated synthetic flat yarn having a plurality of filaments arranged in side-by-side relationship and being integral with adjacent filament. The tape is corrugated tape woven or knitted with other yarns in a flat, substantially untwisted attitude. The tape is fabricated without fibrillation but controlled splitting may occur during subsequent fabric sewing or stitching operations. The fabric is particularly suited for use as geotextiles, woven intermediate bulk containers woven explosive bags, and strapping (webbing).
Patent CA-1292687-C (CA)
Title: Substrat dont la surface presente une activite antithrombogenique
Inventor: BICHON DANIEL
IPC: A61L33/00
Filed: 1986-07-07
Granted: 1991-12-03
Abstract: Film copolymère déposé sur un substrat comportant, fixés de manière covalente, des fragments d'héparine aux propriétés antithrombogéniques. Ce polymère comporte encore des groupes carboxyliques libres destinés à neutraliser des fonctions amine libres éventuellement présentes et à améliorer l'hémocompatibilité du film.
Patent CA-1281545-C (CA)
Inventor: YOUNG PETER A
IPC: F27B9/16
Filed: 1986-11-18
Granted: 1991-03-19
Abstract: ABSTRACT            TREATMENT OF EXPANSIBLE MATERIALS TO FORM LIGHTWEIGHT          AGGREGATE      Expansion of granular or particulate material is effected by supplying such material, for instance slate chips, at a charging zone CZ of a kiln 10, to the upper surface of a rotating annular hearth 12 so as to lie thereon in a uniform layer up to about three chips in thickness.  The hearth 12 is rotating in the direction of the arrow 96, and the chips face thereon just after a preheating zone PHZ.  The chips are carried successively through a treatment zone TZ wherein they are subjected to heat from regenerative burner arrangements 68, 70 and 64, 66 beneath hood 44, to a discharge zone DZ whereat they are loosened by a reciprocating rake 80, 82 and are blown off the hearth 12 and into a receiver 88 by air jets from radially directed nozzles 78 supplied by way of a manifold 76.     The kiln, and its manner of use, enables expansible material, such as date chips, to be substantially fully expanded and thereby achieve a product, suitable for use as a lightweight aggregate, of minimum possible density.
Patent CA-1287909-C (CA)
Title: Portable light beacon
Inventor: BRAIN JOHN E
IPC: B63C9/20
Filed: 1986-12-03
Granted: 1991-08-20
Abstract: ABSTRACT OF THE DISCLOSURE       A portable light beacon for use on life rafts and the like that has a long life due to a flashing light allowing the battery to recharge and a water sensing switch that once  wet remains on.  The light beacon comprises a portable battery power source in a water proof container, a flashing light with watertight electrical connections between the flashing light and the power source, and a fluid sensing switch comprising a fluid absorbent composition positioned between two terminals with circuitry to activate the flashing light when an electrical conductive fluid has been absorbed by the fluid absorbent composition to provide an electrical path between the two terminals.
Patent CA-1276726-C (CA)
Title: Error correcting coder/decoder
Inventor: KUBOTA SHUJI
IPC: H03M13/41
Filed: 1986-12-23
Granted: 1990-11-20
Abstract: ABSTRACT      This invention relates to a convolutional encoder which encodes original data into convolutional codes by using a multinomial from which predetermined terms of the generation multinomial for generating the original convolutional codes are eliminated to thereby achieve high transmission efficiency as well as high error correcting capacity.  The maximum likelihood decoder which is provided on the receiver side to correspond to the encoder can decode in maximum likelihood by calculating the branch metrics of received encoded data and decode the original data in correspondence to the coding rate of the original data with those branch metrics.
Patent CA-1276387-C (CA)
Title: Flexible polyurethane foams prepared from poly(alkylene carbonate) polyols
Inventor: WEBB DANIEL D
IPC: C08G18/42
Filed: 1986-12-29
Granted: 1990-11-13
Abstract: ABSTRACT     In one aspect, this invention relates to a polyurethane foam which is the reaction product of a reaction mixture comprising a poly(alkylene carbonate) polyol, a silicone surfactant, a blowing agent, and a polyisocyanate.  This foam exhibits improved solvent resistance as compared to a similar foam prepared from a polyether polyol or a polyester polyol.  In addition, this foam has been found to exhibit better flame resistance than similar foams prepared from polyether polyols, and also exhibits inherent antistatic properties.       In another aspect, this invention relates to an active hydrogen-containing composition comprising a poly(alkylene carbonate) polyol having an equivalent
Patent CA-1293909-C (CA)
Inventor: YAMAMOTO SOICHIRO
IPC: B08B3/02
Filed: 1987-07-16
Granted: 1992-01-07
Abstract: A cleaning apparatus for paint spray gun assemblies includes a cleaning cabinet, a paint cleaning fluid flow-line system and a pneumatic system for circulation of the cleaning fluid through the flow-line system; fluid outlets in the flow-line system eject cleaning fluid under pressure within the cabinet; paint spray guns are supported in the cabinet with paint passage interiors of the guns in direct fluid flow communication with fluid outlets; typically there is a plurality of fluid outlets for cleaning a plurality of spray gun assemblies simultaneously, a time control in the pneumatic system interrupts the circulation of cleaning fluid with a predetermined period, usually less than 60 seconds.
Patent CA-1275335-C (CA)
Title: Echo suppressor
Inventor: MIYAMOTO TAKANORI
IPC: H04B3/20
Filed: 1987-08-11
Granted: 1990-10-16
Abstract: Abstract:    An echo suppressor for a communication system wherein a signal sent to a transmitting line is returned partly to a receiving line with some delay, comprises an attenuator for attenuating an amplitude of a receiving speech signal.  The amplitude of a transmitting speech signal is compared with the amplitude of a receiving speech signal to generate a signal for controlling the attenuator according to the result of such comparison.  The circuit controls the delay time until the attenuation control signal operates on the attenuator according to a change in the amplitude level of the receiving speech signal.  This arrangement operates to hold the delay time normally at a predetermined maximum value and also to minimize the delay time when a change in amplitude of the receiving speech signal indicates the beginning of speech.  Thus, an echo of speech uttered by a near end user can be suppressed without impairing the beginning of a speech signal uttered by a far end user.
Patent CA-1286403-C (CA)
Title: Method of measuring the refractive index profile of optical fibers
Inventor: BUCKLAND ERIC L
IPC: G01N21/41
Filed: 1987-09-08
Granted: 1991-07-16
Abstract: Abstract:     The present invention is directed to a method for determining the refractive index profile of an optical fiber wherein light from an intense optical source is focused at the bare fiber end portion of the test fiber.  A small amount of light will be coupled into the optical fiber where for the short length of uncoated fiber only cladding modes are excited.  The index of refraction is determined directly by analyzing the intensity distribution emitted from the optical fiber with a lens system having a limited numerical aperture.
Patent CA-1309032-C (CA)
Title: Potable water filter
Inventor: SOLOMON DONALD F
IPC: B01D29/54
Filed: 1987-09-30
Granted: 1992-10-20
Abstract: ABSTRACT                  POTABLE WATER FILTER       A potable water filter comprising a housing having an inlet and first and second outlets, a tube in the housing having a peripheral wall, a passage extending through the tube, and an opening in the peripheral wall leading to the passage, a tubular pleated filter element surrounding the tube and a carbon filter element within the tube.  Some of the water from the inlet flows through the tubular filter element and the carbon filter element to the second outlet. Another portion of the water from the inlet flows along the tubular filter element to flush the tubular filter element and then f lows out the first outlet.
Patent CA-1306479-C (CA)
Title: Feed-through element for application in a vacuum apparatus
Inventor: LIEVENS HUGO
IPC: C23C14/56
Filed: 1987-10-19
Granted: 1992-08-18
Abstract: ABSTRACT            The invention relates to a feed-through element for applica-tion in a vacuum apparatus for the continuous feeding through of material with wire character to be treated at least made up of a casing and a sealing element set up therein that is in  contact  with  the  surface  of  the  material  with  wire character during feeding through, whereby the sealing element is formed by a split drawing die (20), whereby the casing is formed by a holder (21;22)  for the split drawing die (20), whereby the split drawing die (20) being set up with play inside the holder (21;22) and at least a resilient means (28) being inserted in the space between the drawing die (20) and the holder (21;22) and whereby a part of the holder (21;22) being connected in a gastight way to a partition wall of the vacuum apparatus (1).
Patent CA-1316254-C (CA)
Title: Apparatus for rectifying a slant of image for image reading apparatus
Inventor: KITA SUMIO
IPC: G06K9/32
Filed: 1987-10-26
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed   is   an   image  reading   apparatus comprising a storage portion for storing image information, slant  indicating portion for  inputting information for rectifying a slant of the image information stored in the storage portion, and image processor for dividing the image information stored in said storage means into multiple areas according to the information inputted by the slant indicating  portion,  so  that  the  slant  of  the  image information is rectified area-by-area.
Patent CA-1327709-C (CA)
Inventor: DALLIMER DAVID S
IPC: E02D23/14
Filed: 1987-11-20
Granted: 1994-03-15
Abstract: ABSTRACT            SILOS AND METHODS OF BURYING SAME   This  invention  relates to a silo or like structure (16) adapted   to   be   driven  end  first  into  the  ground comprising   an   elongate  body,  wherein the  body  is enlarged   at  one  end  thereof,  wherein  the  enlarged portion  carries a cutter (28) directed axially away from the  body so as to form an outsize hole for the body when the  structure  (16)  is driven  in,  wherein duct means (210,  211,  212) are provided for conveying a fluid from a fluid  source  to  the  outside of the body behind the enlarged   portion,   and   wherein  the  structure  (16) includes   a   flexible  sleeve  (214)  attached  to  the enlarged  portion and adapted to cover the body in spaced relationship  therefrom,  the  duct means (210, 211, 212) opening  into  the annular space defined between the body and  the  sleeve  (214)  when  the sleeve (214) is in its covering position.
Patent CA-1292818-C (CA)
Title: Polylactide compositions
Inventor: MURDOCH JOSEPH R
IPC: A61L31/06
Filed: 1987-12-15
Granted: 1991-12-03
Abstract: Title Polylactide Compositions Abstract Novel polylactide composition containing segments of poly(R-lactide) interlocked with segments of poly(S-lactide).  The compositions can be employed to prepare absorbable stitching threads used in vivo, bone plates, artificial tendons, artificial ligaments, artificial blood vessels, time release carriers for medication, films used in cultivation in agriculture, fibers, ropes, time release carriers of agrichemicals, and separatory films for industrial use, and the like.
Patent CA-1277200-C (CA)
Title: Anaesthetic mask
Inventor: SCHMOEGNER JOHN C
IPC: A61M16/01
Filed: 1988-02-12
Granted: 1990-12-04
Abstract: ANAESTHETIC MASK     Abstract of the Disclosure The present invention provides an improved anaesthetic scavenging face mask having a scavenging channel running along the perimeter of the mask.  The mask is provided with an anaesthetic gas inlet and a vacuum outlet.      The scavenging channel is connected to the vacuum outlet.
Patent CA-1289781-C (CA)
Title: Ratchet wrench with manual disassembly capability
Inventor: CHOW KIRK K
IPC: B25B13/46
Filed: 1988-02-19
Granted: 1991-10-01
Abstract: Abstract of the Disclosure A ratchet wrench including a handle-carried drive ring and driven core in which the core can be simply and readily removed, intact, for cleaning, repair and replacement without the use of tools. Additionally, the wrench includes a low-friction ratchet drive-reversing mechanism for simple, one-finger operation.  The disassembly-facilitating structure includes a resilient ring-like band seated in a channel defined by radially communicating annular grooves in the drive ring and in the wrench core.  A band displacing element serves to shift the band to effect a bridging of the band across the grooves defining the channel to effect a mechanical intercoupling between the core and the drive ring of the ratchet wrench.  For disassembly, the band is repositioned to assume a configuration in which the band occupies a single one only or the communicating grooves in the drive ring and in the opposed core, thereby uncoupling the core and the drive ring, to permit withdrawal of the core, as an intact unit, axially from the wrench.  The drive direction of the wrench is controlled by an arcuate, wire spring which. intercouples a finger-manipulable pivotal drive-reversing control plate of the tool with a shiftable pawl housed in the core of the wrench to provide a low-friction mechanism by which the pawl is positioned to establish a selectable drive direction of the wrench through simple, one-finger displacement of the reversing plate of the tool.
Patent CA-1287491-C (CA)
Title: Spinning top and driving device for actuating the same
Inventor: BEAUDRY NORMAND A
IPC: A63H1/00
Filed: 1988-03-09
Granted: 1991-08-13
Abstract: A driving device for initiating and maintaining a spinning top in a continuous movement of rotation and precession. The driving device is made of a shaft adapted to axially rotate in a tube on which is concentrically fixed a rim. A top is hingely connected by its central post to the end of the shaft adjacent the rim. The post is able to rotate around the rim through a ball-bearing joint and the friction between the post and the rim causes the top to spin around the rim. By momentarily braking or changing the direction of the shaft with a manual contact on the shaft, it is possible to create a precession movement to the spinning top which will raise above the rim.
Patent CA-1303971-C (CA)
Title: Perforating gun firing tool
Inventor: GEORGE FLINT R
IPC: E21B34/10
Filed: 1988-04-20
Granted: 1992-06-23
Abstract: ABSTRACT    A tool for activating the firing head of a perfo-rating gun located below a packer by applying pressure to the upper well annulus while maintaining an unimpeded bore between the perforating gun and the pipe string.  The tool is provided with a flow valve to prevent flow through the flow bore when closed, and a circulation valve which permits fluid flow from the upper annulus into the flow bore when open and a means of switching the valves so that when one is open the other is closed.  A method of using the tool to complete a well is also disclosed.
Patent CA-1303188-C (CA)
Title: Transportation apparatus
Inventor: CAPUTO WILLIAM R
IPC: F16D65/14
Filed: 1988-05-06
Granted: 1992-06-09
Abstract: 22                  53,828 ABSTRACT OF THE DISCLOSURE Transportation apparatus, such as escalators and moving walks, having an electrically released, magnetically set brake,  and a servo loop for regulating the brake coil current.  Brake voltage and brake current feedback are both used in the  regulation of the brake current,  with the values of the voltage and current feedback being selected to cause electromagnetic flux produced by the brake coil current to substantially cancel the magnetic flux produced by permanent magnets over the operating temperature range of the brake.  In a preferred embodiment of the invention, the brake current is pulsed continuously while the trans-portation  apparatus is  operated,  to  prevent  transient excursions of the brake current from initiating and main-taining partial setting of the brake.
Patent CA-1288847-C (CA)
Title: Call control of a distributed processing communications switching system
Inventor: WARTY PRAMOD
IPC: H04Q3/545
Filed: 1988-05-17
Granted: 1991-09-10
Abstract: Abstract:          A method and apparatus for controlling calls in a distributed processing communications switching system.  A call is assigned to any one of a plurality of call control processors.  The assigned processor thereafter directs the establishment of communications connections for that call.  In the exemplary embodiment, the control of a cellular mobile communications switching system, a high speed data ring is used to communicate among a switching network, the call control processors, and call assignment processors of the system.  Advantageously, each of the call control processors can be fully utilized since each may be flexibly assigned to any set of communications ports or terminals.  New calls to a terminal which is already on an existing call are assigned to the call control processor assigned to control the existing call.  Advantageously, call data for all calls to that terminal are therefore under the control of a single processor.
Patent CA-1331094-C (CA)
Title: Ori-inhibited and deposit-resistant motor fuel composition
Inventor: SUNG RODNEY L
IPC: C10L1/22
Filed: 1988-06-06
Granted: 1994-08-02
Abstract: ORI-INHIBITED AND DEPOSIT-RESISTANT MOTOR FUEL COMPOSITION                       (D#78,839-F) ABSTRACT         An  ORI-inhibited  and  deposit-resistant  motor  fuel composition comprises a mixture of hydrocarbons boiling in the range of 90°F-450°F and (I) the reaction product of a dibasic acid anhydride, a polyoxyalkylene diamine, and a hydrocarbyl polyamine;  and  (II)  a  mixture  comprising  polyisobutylene ethylene diamine and polyisobutylene in a hydrocarbon solvent. Motor fuel compositions of the instant invention show improved ORI  control  and  valve  deposit  control  in  comparison  with typical commercial fuel compositions.
Patent CA-1325245-C (CA)
Inventor: SAGARA SHINJI
IPC: A61H23/02
Filed: 1988-07-06
Granted: 1993-12-14
Abstract: Abstract of the Disclosure Disclosed is a novel vibrator system which comprises an ultrasonic motor; a driver circuit which supplies a forward-ly-rotatory and reversely-rotatory signals to the ultrasonic motor; and a switching control circuit which alternately switch the signals.  The vibrator system attains a high energy effi-ciency even when miniaturized,  as well  as normally working without  causing  a  large  operation noise when  loaded.   The vibrotherapeutic device wherein the vibrator system is assembl-ed can be advantageously used to massage human body.
Patent CA-1332452-C (CA)
Inventor: HIROSAKI BOTARO
IPC: H04L25/49
Filed: 1988-08-19
Granted: 1994-10-11
Abstract: ABSTRACT OF THE DISCLOSURE A digital communication system comprises a transmitter including a (1,0,-1) precoder for precoding a unipolar input digital data stream and a bipolar converter for converting the output signal of the (1,0,-1) precoder into a bipolar signal.  The bipolar signal is transmitted through a metallic transmission line to a receiver.  The receiver comprises a digitizer for digitizing the transmitted signal, and a line egualization filter for equalizing losses encountered during propagation through the transmission line.  A (1, 1) converter is provided for converting the output signal of the line equalization filter in a manner opposite to the bipolar converter.  A clock recovery circuit derives sample timing pulses from the output of the line equalization filter.  A decoder responds to the sample timing pulses to detect symbols from the output signal of the (1, 1) converter to generate a replica of the original digital data stream.
Patent CA-1280654-C (CA)
Title: Implantable device
Inventor: JOHNSTON JIMMIE T
IPC: A61M5/00
Filed: 1988-08-24
Granted: 1991-02-26
Abstract: - P.C. 7288/A IMPLANTABLE DEVICE                         ABSTRACT            A device that is implantable to provide access to multiple body sites for the administration or withdrawal of fluids. A hollow port has a self-sealing septum (12) on one end and an outlet (14) at an opposite end.  A catheter (20) is connected to the outlet.  The septum and outlet are positioned to be substantially in-line.