baber/WOPTO huggingface dataset:
Patent CA-1294806-C (CA)
Title: Technique for reducing fibre joint loss
Inventor: MORTIMORE DAVID B
IPC: G02B6/26
Filed: 1987-02-13
Granted: 1992-01-28
Abstract: A TECHNIQUE FOR REDUCING fIBRE JOINT LOSS                        ABSTRACT   A technique for reducing splice loss between similar or dissimilar optical fibres.  Two fibres 10,11 are joined by fusion splicing and the joint region is tapered until the cladding assumes a guiding function. This produces a mode transformer which converts  the  fundamental  mode of one fibre to that of the other with little or negligible loss.
Patent CA-1333381-C (CA)
Inventor: NYBERG ERIC D
IPC: G01N27/30
Filed: 1987-02-20
Granted: 1994-12-06
Abstract: An electrode, preferably of a conductive polymer, has on its surface, preferably over all of its surface, an ion exchange material, preferably of significant thickness.  Such a coated electrode may be used for sensing the presence or measuring the concentration of an ionic species, or for removal from or release of an ionic species into an electrode.
Patent CA-1298782-C (CA)
Title: Saliva test for feline leukemia virus
Inventor: VODIAN MORTON A
IPC: G01N33/569
Filed: 1987-04-08
Granted: 1992-04-14
Abstract: Abstract of the Disclosure The saliva test for feline leukemia virus (FeLV) employs a probe having an immunochemically sensitive member for collecting saliva from the oral cavity of a cat and employs ELISA reagents for the incubation of the probe and the development of color reactions to indicate the presence or absence of FeLV within the saliva sample collected onto the probe.
Patent CA-1283998-C (CA)
Inventor: CHOW SAN-LAUNG
IPC: A61K9/18
Filed: 1987-04-24
Granted: 1991-05-07
Abstract: ABSTRACT     Sulfonic acid cationic exchange resin particles which have been treated to improve their coatability with up to about 20% by weight of a compound selected from hydroxypropylmethyl cellulose, hydroxypropyl cellulose, hydroxypropyl sorbitol, sorbitol, and polyvinylpyrrolidone.
Patent CA-1293530-C (CA)
Inventor: SCOTTI GIORGIO
IPC: H01M2/30
Filed: 1987-06-08
Granted: 1991-12-24
Abstract: ABSTRACT          An  electrical battery pole or terminal      is cold-produced by  means of a  process comprising axial  compression at room temperature  of an essentially cylindrical metal element between a  first and  a second  portion of  die      and travelling one  in respect to the other, of  which the first forms that  which will  be the  protruding part      of battery  pole or terminal and the  second     portion of die, by subjecting lower  part  of  metal  black  to  compression, achieves   the electrical battery pole's lower part, which is provided with shaped portions        achieving  a  number  of ribs.
Patent CA-1339830-C (CA)
Title: Human monoclonal antibody to lymphadenopathy associated virus
Inventor: MCCLURE JANELA
IPC: G01N33/569
Filed: 1987-06-22
Granted: 1998-04-21
Abstract: Human monoclonal antibodies capable of specifically reacting with an antigenic determinant of LAV/HTLV-III and cell lines producing those monoclonal antibodies are disclosed.  The human monoclonal antibodies may be utilized in a method for determining the presence of LAV/HTLV-III in biological samples, or in a method for separating specific antigenic determinants of LAV/HTLV-III from a mixture.  Pharmaceutical compositions containing such a human monoclonal antibody, and a method for significantly reducing the infectivity of LAV/HTLV-III in animals using the composition are also disclosed.
Patent CA-1306404-C (CA)
Title: Cutting chain
Inventor: SCOTT LEWIS A
IPC: B27B33/14
Filed: 1987-08-07
Granted: 1992-08-18
Abstract: IMPROVED CUTTING CHAIN                     ABSTRACT OF THE DISCLOSURE             A lightweight disposable cutting chain for use with small, compact power supplies comprises in one embodiment a series of links formed of wire. On certain links an end of the wire loop forming the link is cut to form a sharp edge capable o shaving material, such as wood, being cut.  The links are arranged so that a narrow kerf is first cut by the links, other links being formed with cutting edges to shave material and widen the kerf.  In other embodiments some or all of the links comprise metal plates formed by stamping from sheet metal.
Patent CA-1276272-C (CA)
Title: Electronically controlled fluid pressure braking system
Inventor: SINGLETON WILLIAM A
IPC: B60T13/66
Filed: 1987-09-09
Granted: 1990-11-13
Abstract: Abstract of the Disclosure An electronically controlled fluid pressure braking system for a heavy duty vehicle includes an operator controlled mechanism which generates independent brake pressure command signals, each of which are transmitted to separate auxiliary controllers.  Each of the controllers transmits its command signal to the other auxiliary controllers and also to a master control unit. The master control unit sorts between the command signals and generates a preliminary brake pressure request signal which is transmitted back to each of the auxiliary controllers.  Each of the auxiliary controllers then examines the brake pressure request signal received from the master controller and actuates the corresponding vehicle brakes if the pressure request signal is within normal limits.  If the signal is not within normal limits, each of the auxiliary controllers is capable of generating a brake pressure request signal independently of the master control unit.
Patent CA-1330009-C (CA)
Title: Apparatus and method for making center-filled chewing  gum
Inventor: HAGER WALTER J
IPC: A23G4/20
Filed: 1987-11-24
Granted: 1994-06-07
Abstract: Apparatus and Method for Making Center-Filled Chewing Gum Abstract An apparatus and method for making center-filled chewing gum, in which product having up to at least 35-40% by weight of center fill can be produced.   The apparatus comprises a novel extruder barrel and nozzle arrangement (11) which extrudes a tubular rope of gum (G) through an annular orifice (30), and at the same time supplies a center-fill material (F) to the hollow interior  (V)  of  the  tubular  rope  through  a  central nozzle  (20,21)  concentric  with  the  orifice.    The center-fill material is fed into the hollow interior of the gum rope at a rate sufficient to just fill the void produced in the gum rope as it is extruded through the nozzle,  and without  exerting  a  compressive  pressure thereon.    With  this  apparatus  and  method,  center-filled chewing gum can be produced with up to at least 35-40% by weight of center-fill material and at the same time  uniform wall  thickness  and consistency for the center-filled product can be maintained.
Patent CA-1303381-C (CA)
Title: Precast concrete board fixing metal fitting
Inventor: NOBORISAKA MITSUO
IPC: E04B2/88
Filed: 1987-11-26
Granted: 1992-06-16
Abstract: ABSTRACT OF THE DISCLOSURE A metal  fitting  for  fixing  a  precast  concrete board comprises: a supporting metal member with one end portion  secured  to  the  board  and  with  the  other  end portion provided with a first screw to move the board upward and downward through the supporting metal member and a second screw to move the board backward and forward through  the  supporting  metal member;  and  an adjusting metal member including a base board which is secured to a building's  structure,  and  a pair  of  third screws  for moving  the  board  rightward  and  leftward  through  the supporting metal member, so that the position adjustments of the  board  in  the three  directions  can be  achieved independently of one another.
Patent CA-1308558-C (CA)
Title: Device for holding roadways or railtracks for toy vehicles
Inventor: HESSE KURT
IPC: A63H18/02
Filed: 1987-12-08
Granted: 1992-10-13
Abstract: ABSTRACT OF THE DISCLOSURE:           A device for mounting the roadway or railtrack of a  toy vehicle onto a  smooth,  vertical  wall-surface, especially to a glass wall.  The device which can be easily adjusted onto the wall-surface at any desired height and distance,  comprises a carrying arm for supporting the roadway or railtrack.  This arm is adapted to be detachably connected to a support plate secured to the wall-surface by a suction-cup in such a manner that it extends at right angle with respect  to this wall surface.
Patent CA-1301426-C (CA)
Title: Process for the separation and recovery of boron compounds from a geothermal brine
Inventor: BRUZZI VITTORIO
IPC: B01D61/00
Filed: 1987-12-17
Granted: 1992-05-26
Abstract: "PROCESS   FOR  THE  SEPARATION  AND  RECOVERY  OF  BORON COMPOUNDS FROM A GEOTHERMAL BRINE"                         Abstract Boron  compounds are separated and recovered from  a geothermal  brine,  which additionally contains inorganic salts, such  as  sodium  and  potassium  chlorides  and sulphates, by means of a process comprising the following process steps: a) pre-concentration of the geothermal brine by expansion up to room pressure,  to to a pressure lower than room pressure; b) concentration  of the pre-concentrated  brine,  coming from  the (a) step,  by means of an osmotic  treatment against  a  concentrated aqueos solution  of  recycled inorganic salts; c) treatment  of  crystallization  of  the  concentrated brine,  coming from the (b) step,  with the separation of  the solid inorganic salts from an aqueous solution of boron compounds; d) recycle  of the inorganic salts separated in  the  (c) step,  to  the (b) step of osmosis,  in the form of  a concentrated aqueous solution; and e) recovery  of boron compounds from the relevant aqueous solution obtained in the (c) step.
Patent CA-1326882-C (CA)
Inventor: ASAOKA TERUO
IPC: B23H3/02
Filed: 1987-12-29
Granted: 1994-02-08
Abstract: ABSTRACT OF THE DISCLOSURE    A power supply system for an electrolytic processing apparatus of the type having an electrtode which is positioned to oppose a work within an electrolyte such that the work is processed and finished by discharge of pulses between the work and the electrode.  The power supply system has a discharge section including a plurality of capacitors connected in parallel and adapted for discharging charges to the gap between the work and the electrode which face each other across the electrolyte, rectifiers connected to the capacitors such as to prevent reversing of current to the power supply side, and discharge switches connected to the capacitors and adapted to be opened and closed so as to selectively enable the capacitors to discharge the charges.          The system also has a power supply section for supplying predetermined electric power to the capacitors; a charging section for selectively transferring the power from the power supply section so as to charge the capacitors in a desired manner.   The system further has a control section for opening and closing the discharge switches thereby controlling the discharge of charges from the capacitors.
Patent CA-1292198-C (CA)
Title: Fermentation of microorganisms having ice nucleation activity using a temperature change
Inventor: LAWLESS RICHARD J JR
IPC: C12N1/20
Filed: 1988-01-06
Granted: 1991-11-19
Abstract: FERMENTATION OF MICROORGANISMS HAVING       ICE NUCLEATION ACTIVITY USING A TEMPERATURE CHANGE                  Abstract A method for the fermentaion of micro-organisms having a high level of ice nucleating activity is disclosed.  A high productivity in the fermentation is achieved by using a certain amount of nitrogen source during the growth phase and low temperature during the stationary phase of the fermentation.
Patent CA-1309519-C (CA)
Inventor: CANTONI ANTONIO
IPC: H04L12/931
Filed: 1988-03-16
Granted: 1992-10-27
Abstract: ABSTRACT            A method of transmitting variable messages on a network in fixed length slots the method including the steps of providing a source identifier field in the header of each slot, the source identifier field including a code which is uniquely associated with the message to be transmitted. The fixed length slots are then transmitted on the network and reassembly of the slots by a reassembly machine is controlled in accordance with the identifier codes in the slot.
Patent CA-1292194-C (CA)
Title: Compression type truck/trailer brake slack adjuster
Inventor: SCHMITT EUGENE W
IPC: F16D65/56
Filed: 1988-04-06
Granted: 1991-11-19
Abstract: COMPRESSION TYPE TRUCK/TRAILER       BRAKE SLACK ADJUSTER     Abstract of the Disclosure A combination in-line brake slack adjuster and air cham-ber for connection to a vehicle brake shaft lever arm includes an air chamber and a piston movable in said air chamber.  The slack adjuster is of the compression type and is coaxially attached at one end to the piston and at the opposite end is adapted for con-nection to a vehicle brake shaft lever arm.  The slack adjuster reacts to a coaxially applied brake application force by the pis-ton to apply a force to the brake shaft lever arm and automatical-ly takes up and lets out slack as determined by movement to a full brake application position to maintain a generally uniform travel of the piston during brake application.
Patent CA-1339051-C (CA)
Title: Process for inhibiting the spontaneous oxidation of low rank coal
Inventor: SIDDOWAY MARK ALAN
IPC: C10L9/12
Filed: 1988-05-31
Granted: 1997-07-29
Abstract: The tendency toward spontaneous ignition of low rank coal is reduced by spraying coal with an aqueous solution of an oxidant which contains combined oxygen, drying the treated coal and cooling the dried coal.
Patent CA-1330088-C (CA)
Title: N-phenylpyrazole derivatives
Inventor: BUNTAIN IAN G
IPC: C07D231/16
Filed: 1988-06-10
Granted: 1994-06-07
Abstract: ABSTRACT   4-Nitro-N-phenylpyrazole derivatives of the formula:                               I     wherein R1 represents fluorine, chlorine or bromine, R2 represents chlorine or bromine, or alkyl or alkoxy group optionally substituted by halogen, R3 is as defined for or represents hydrogen, R  represents halogen, cyano or nitro, R5 represents hydrogen, an amino group -NR6R7 wherein R6 and R7, each represents hydrogen, alkyl, formyl, alkanoyl (or R6 and R7 together form a cyclic imide) which may be unsubstituted or substituted by halogen, alkoxycarbonyl which may be unsubstituted or substituted by halogen, or R5 represents alkoxymethyleneamino which may be unsubstituted or substituted on methylene by alkyl, or represents fluorine, chlorine, bromine or iodine possess pesticidal properties; their preparation and use, and compositions containing them are described.
Patent CA-1303056-C (CA)
Title: Process for the fabrication of dialkylaminoalkyl (meth)acrylate
Inventor: HURTEL PATRICE
IPC: C07D295/15
Filed: 1988-07-07
Granted: 1992-06-09
Abstract: Process for the manufacture of dialkylaminoalkyl (meth)acrylates (I) of formula: H2C=C(R1)-C(O)-O-A-N(R2)(R3) R1 being a hydrogen atom or a methyl radical, A being a linear or branched alkyl radical containing 1 to 5 carbon atoms, and R2 and R3, which are identical or different from each other, are an alkyl radical containing 1 to 5 carbon atoms, or an aryl group, or R2 and R3 form a cyclic alkyl radical, in which ethyl (meth)acrylate is reacted with an aminoalcohol (II) of formula (R3)(R2)N-A-OH, A being a linear or branched alkyl radical containing 1 to 5 carbon atoms, in the presence of a polymerization inhibitor, at a temperature of between 20 DEG  and 120 DEG  C. and at a pressure equal to or lower than atmospheric pressure, in a molar ratio of ethyl (meth)acrylate to aminoalcohol (II) of between 1.5 and 5, in the presence of tetraethyl titanate, the azeotropic mixture of ethyl (meth)acrylate and ethanol is removed during the reaction, and the dialkylaminoalkyl (meth)acrylate (I) obtained is isolated at the end of reaction.
Patent CA-1328570-C (CA)
Inventor: BERKEY GEORGE E
IPC: G02B6/28
Filed: 1988-07-25
Granted: 1994-04-19
Abstract: Abstract Of The Invention A  method  of  making  an economical  fiber  coupler comprising providing a glass tube having first and second end portions and a midregion, and a longitudinal aperture extending  therethrough.   Two  suitably  prepared  glass optical  fibers,  each  having  a  core  and cladding,  are disposed  within  the  longitudinal  aperture,  the  fibers extending beyond each end thereof.  The fibers are held taut to effect a tension therein, and they are glued to each end portion.  The midregion of the member is heated, collapsed  about  the  fibers,  and  drawn  to reduce  the diameter thereof.
Patent CA-1316055-C (CA)
Title: Combination of antistasis devices
Inventor: RANGASWAMY AVVARI
IPC: A63B23/04
Filed: 1988-08-29
Granted: 1993-04-13
Abstract: Abstract Of The Disclosure An exercise device for the feet and legs has:       (a)  foot plates for exercising a supine person's feet;               (b)  calf squeezers for compressing the calf muscles when the feet are exercized; and (c)  a support structure holding the foot plates in a vertical position and the calf squeezers in a horizontal position.      Persons in a supine position exert a rocking movement of the foot plates and this rocking movement makes the calf muscles squeeze against the calf squeezer.  This squeezing pump  blood out of the deep veins of the calf and prevents stasis of blood and clot formation in the deep veins of the calf.
Patent CA-1322287-C (CA)
Title: Optical distributor
Inventor: HEALEY PETER
IPC: G02B6/28
Filed: 1988-09-12
Granted: 1993-09-21
Abstract: ABSTRACT                OPTICAL DISTRIBUTOR    An optical distributor comprises an optical input (II), and 2n optical outputs (01-08), where n is an integer greater than 1, one or more plane mirror surfaces (5) and transflective means (2, 3, 4).  The plane mirror surface or surfaces (5) and the transflective means (2, 3, 4) are arranged to provide one optical path between the input (II) and each of the outputs (01-08), each path making n transitions only at the transflective means.      In a preferred embodiment the transflective means comprise n separate beam splitter stages, the effective lengths of the n separate splitter stages 3, 4) being substantially in the ratio 1:2:...2n.  The beam splitters may be formed by transflective coatings on glass substrates.     Figure 1.
Patent CA-1328512-C (CA)
Inventor: KLIMPEL RICHARD R
IPC: B03D1/02
Filed: 1988-11-04
Granted: 1994-04-12
Abstract: ABSTRACT     The flotation of desired mineral ores is selectively depressed by the use of an effective amount of a polyoarboxylic acid or salt thereof in a reverse flotation process.  As an example, the flotation of iron-containing minerals, such as iron oxides or iron powder, is selectively depressed when compared to the flotation of silicate gangue thus facilitating the recovery of the desired mineral by the use of an effective amount of a polycarboxylic acid or salt thereof such as sodium polyacrylate.
Patent CA-1313197-C (CA)
Title: Process for the preparation of insaturated alcohols
Inventor: GROSSELIN JEAN-MICHEL
IPC: C07C29/136
Filed: 1988-11-30
Granted: 1993-01-26
Abstract: Process for preparing unsaturated alcohols by hydrogenation in a homogeneous medium of the corresponding unsaturated carbonyl compounds in the presence of a catalyst chosen from among ruthenium hydrides and derivatives complexed with a ligand or associated with a ligand.
Patent CA-1307936-C (CA)
Title: Gas lighter
Inventor: NITTA TOMIO
IPC: F23Q2/16
Filed: 1988-12-22
Granted: 1992-09-29
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed is an improvement of gas lighter of the type which comprises a main body having a gas well, a gas-ejection nozzle fixed to the ceiling of the gas well, a cap operatively connected to the gas-ejection nozzle, and a fire-striking unit having a rotatable file and an associated flint.  Such a gas lighter in improved in that the fire-striking unit has a connecting pipe un-der  its bottom surface, the pipe communicating with the gas-ejection nozzle at its rear end and being open at its top end in the vicinity of the rotatable file.  The building-in of the con-necting pipe on the lower sufrace of the fire-striking unit per-mits reduction of the number of parts to be handled in the assem-bling line.
Patent CA-1306376-C (CA)
Title: Tunable splice for fiber optics
Inventor: LEE NICHOLAS A
IPC: G02B6/26
Filed: 1989-01-09
Granted: 1992-08-18
Abstract: ABSTRACT OF THE DISCLOSURE           A fiber optic splice includes two cylindrical ferrules of different diameters and having bores parallel to, but offset from, the major axes of the ferrules.  The ferrules are inserted into a deformable housing where they rest in a V-groove.  When external pressure is applied to the housing it is deformed in a predetermined manner, allowing the ferrules to rotate and when the pressure is removed, the ferrules are held in place.
Patent CA-1338932-C (CA)
Inventor: BERNARD CLAY II
IPC: B65G1/04
Filed: 1989-02-21
Granted: 1997-02-25
Abstract: An automated work center for use in materials handling operations  is  disclosed.    The  work  center  includes  a randomly  accessible  vertically  moving  temporary  storage queue (11) for receiving containers (25) that hold material goods.   A fixed loading ramp (20) is arranged to receive containers (20) from  an  external  system and to  load  the received containers onto the storage queue (11)  A work area (5) having a plurality of rotatable work tables (7)provides an gives the operator access to the containers.   A delivery system (14) transfers containers between the storage queue (11) and the work tables (7) and a takeaway system (16) transfers containers between the work area and the conveyor network. An automated control system (17) coordinates the delivery of containers between the temporary storage queue (11) and the work  area (5.)    A  consolidation  queue (18) having  a multiplicity of vertically spaced shelfs may be disposed opposite the work tables (7) to facilitate the consolidation of ordered goods.
Patent CA-1301219-C (CA)
Title: Pole climbing spurs
Inventor: GREENWAY PETER
IPC: A63B27/04
Filed: 1989-03-31
Granted: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE         There has been very little improvement in pole climbing devices over the past one hundred years.  A relatively simple, electrically insulating pole climbing device includes a solid, one-piece sole plate for attachment to the bottom of a boot or shoe, a side bar pivotally connected to one side of the sole plate for extending upwardly therefrom and carrying a top strap for connecting the device to the calf of a user, a metal gaff mounted on the side bar for engaging a pole, and an arm extending upwardly from the other side of the sole plate and carrying straps for connecting the sole plate to the foot and ankle of the wearer.          The combination electrically insulates the gaff from the wearer, so that the possibility of an electrical shock is substantially reduced.
Patent CA-1332466-C (CA)
Inventor: HAMADA EMIKO
IPC: G11B7/24
Filed: 1989-05-11
Granted: 1994-10-11
Abstract: ABSTRACT    An optical information recording medium comprising:  a light transmitting substrate; a light absorptive layer overlaying the substrate to absorb a laser beam; and a light reflective layer overlaying the light absorptive layer, wherein said substrate has a surface layer, adjacent to the light absorptive layer, which is deformable by energy generated upon absorption of the laser beam by the light absorptive layer, to form optically readable pits.