baber/WOPTO huggingface dataset:
Patent CA-1276358-C (CA)
Title: Epoxy resin for preparing electric laminates
Inventor: KLEIN DIETER H
IPC: H01B3/40
Filed: 1985-01-29
Granted: 1990-11-13
Abstract: Abstract The disclosure relates to an epoxy resin composi-tion and to a process for preparing electric laminates therefrom.       The epoxy resin composition contains an epoxy resin, a solvent and a curing agent which is the reaction product of a hexaalkyl ether of a methylolmelamine of the general formula   in which each R is independently an alkyl radical of 1 to 4 carbon atoms, with a polyhydric phenol and if desired a monohydric phenol, the phenol compound(s) being used in an amount such as to produce a ratio of at least one reactive phenolic hydroxyl group for every alkoxy group.
Patent CA-1275952-C (CA)
Title: Monoclonal antibodies against metal chelates
Inventor: MEARES CLAUDE F
IPC: C12P21/08
Filed: 1985-08-30
Granted: 1990-11-06
Abstract: ABSTRACT           Monoclonal antibodies are described which exhibit specificity for the complex of a chelating agent and a specific metal as compared to the chelating agent itself or a complex of the agent with another metal.  A monoclonal antibody is considered to exhibit specificity for a complex of a specific metal and chelating agent when the binding constant (KA) between the antibody and complex is an order of magnitude (ten times) greater than the KA of the antibody for the chelating agent alone or for a complex of the chelating agent with another metal.  These monoclonal antibodies are useful for the conjugation of radionuclides to antibodies and for the purification of trace metals.
Patent CA-1291207-C (CA)
Title: Auto-reset circuit breaker
Inventor: AHUJA OM
IPC: H02H3/08
Filed: 1985-10-24
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE     An auto-reset circuit breaker for interrupting an electrical current in a line to be protected, when the current exceeds a predetermined value.  The circuit breaker comprises: at least once solid state silicon switch series mounted in a line to be protected, said silicon switch responsive to a first control signal to open said switch and interrupt the current flowing therethrough;  a first means for measuring a variable voltage drop across at least one element series mounted in said line to be protected, said first means generating a trip signal when said voltage drop and said electrical current exceed predetermined values;  a second means responsive to at least one trip signal for providing said first control signal to said solid state switch, said control signal effective to open said switch when said electrical current exceeds said predetermined value;  and delay means responsive to said trip signal for enabl-ing said second means for a delay period, whereby said electrical current is periodically sampled at said delay intervals until the electrical current drops below its predetermined values.
Patent CA-1279308-C (CA)
Title: Process for polymerizing butene-1
Inventor: NIELSEN ROBERT P
IPC: C08F4/16
Filed: 1986-07-02
Granted: 1991-01-22
Abstract: ABSTRACT OF THE INVENTION A catalyst system for polymerizing butene-l comprising:  a compo-nent (A) consisting of one or more dialkylaluminum hydride compounds having a total molar amount greater than 75 moles of said dialkylaluminum compound per mole of titanium; a component (B) consisting of an alkylaluminum halide having a total molar amount greater than 25 moles of said alkylaluminum halide per mole of titanium, and which, at least in part, has been premixed with component (D); a component (C) consisting of a selectivity control agent consisting of one or more aromatic esters in a total molar amount greater than 50 moles of ester per mole of titanium; and a component (D) consisting of a titanium halide and an electron donor on a support comprised of a magnesium halide.
Patent CA-1296859-C (CA)
Title: Vented exterior building wall and roof structures
Inventor: MULFORD CASS E
IPC: E04B2/00
Filed: 1987-01-26
Granted: 1992-03-10
Abstract: Application Of:  Cass E. Mulford For:  Vented Exterior Building Wall and Roof Structures Abstract Of The Disclosure The invention relates to exterior wall and roof constructions wherein a space is provided between an outer sheathing layer and the underlying structure for passage of air to assist in heating, cooling and ventilation functions.  Perforated channel members are installed in the area at which air enters and/or leaves the vented space, permitting free flow of air while preventing entry of insects, rodents, or other foreign materials into the space.          Means may be optionally provided for blocking off air flow through the vent space when desired to assist in heating and cooling functions.  Plenums and ductwork may be provided for recirculation of air from the vented spaces to other portions of the structure.          In one embodiment, a vented roof structure is provided which may advantageously be employed in conjunction with an interior, cathedral-type ceiling.  An angle bracket useful in both marking roof raftermembers for cutting and in assembly thereof is also disclosed.
Patent CA-1290996-C (CA)
Title: Single-blow pneumatic percussive tool
Inventor: SUDNISHNIKOV VADIM B
IPC: B25D9/00
Filed: 1987-02-25
Granted: 1991-10-22
Abstract: SINGLE-BLOW PNEUMATIC PERCUSSIVE TOOL            Abstract A single-blow pneumatic percussive tool comprises a hollow cylindrical casing accommodating a reciprocatable hammer piston which divides the interior space of the cas-ing into an upper chamber and a lower chamber. A spring-biased valve is mounted on the side of the lower chamber and a working member is secured to the valve. An air dis-tribution device is mounted on the side of the upper cham-ber and has passages and a control lever. The hammer pis-ton has an axial passage in which a tube is mounted which has a shoulder on the outer surface and a continuous inner partition wall. The tube has upper and lower ports dispos-ed on either side of the partition wall. An air distribu-tion sleeve biased by spring on the side of the air dis-tribution device is mounted on the tube and has an inner recess. The air distribution sleeve is movable under the action of the hammer piston to the upper position in which it covers the lower ports and the air distribution sleeve is movable under the action of a spring means to the lower position defined by the shoulder, in which it establishes communication between the upper and lower ports through the inner recess.
Patent CA-1339696-C (CA)
Title: Boron-containing compositions, and lubricants and fuels containing same
Inventor: KOCH FREDERICK W
IPC: C07F5/04
Filed: 1987-03-11
Granted: 1998-03-03
Abstract: A  method of preparing boron-containing compositions is described which comprises reacting at least one hydroxy-substituted  ester,  amide  or imide with a boron compound.   Such boron-containing compositions are useful in  lubricating  oils  and  provide  the lubricating oils with  anti-wear and/or friction-reducing properties.  The boron-containing  compositions  also  are  useful in fuel compositions.
Patent CA-1287149-C (CA)
Title: Range finder and method for range finding by using light pulses
Inventor: GAECHTER BERNHARD F
IPC: G01S17/10
Filed: 1987-03-18
Granted: 1991-07-30
Abstract: ABSTRACT A method for range  determination  between  a  transmitter receiver  and  a  target  using  optical  pulse  signals   is described, which only  requires  extremely  low  transmission pulse energy, but still has  a  much  higher  sensitivity  or interference suppression than conventional methods.  For this purpose, optical pulse groups with a pulse rate in the  range approximately 10 to approximately 150 kHz are  directed  onto the target.  The reflected and received  signal  sequence  is scanned  with  a  scanning   frequency  dependent   on   the transmission pulse  rate  and  digitized.   The  scan  values obtained are then continuously  added  to  the  corresponding value for each individual transmission pulse with  the  clock of  the  scanning  frequency. The  ranging  information  is derived from the resulting signal.  Preferably  the  scanning of the  incoming  signal  sequence  is  carried  out  with  a scanning frequency in the  nanosecond  range.   For  example, signal processing takes place in a parallel adder     and for each  transmission  pulse  there  is  a  continuous  parallel addition of the digitized  received  signals  to  the  addend signal of the adder.  In particular, the output of adder can be connected across a shift register     to the input for the  second  addend.   Alternatively  the  processor  can  be constituted by a microprocessor operating in  the  nanosecond range  and  in  which  is  contained  the  function  of   the transmission pulse-related parallel adder
Patent CA-1295616-C (CA)
Title: Antiarrhythmic agents
Inventor: CROSS PETER E
IPC: C07D237/14
Filed: 1987-04-14
Granted: 1992-02-11
Abstract: Abstract Title:     Antiarrhyehmic Agents Antiarrhythmic agents of the formula:-  --- (I) and their pharmaceutically acceptable salts, wherein      R is a C1-C4 alkyl group;            R1 is a C1-C4 alkyl group; X is -CH2-, -CO- or -CH(OH)-; n is 2, 3 or 4; and     "Het" is a 5- or 6-membered nitrogen-containing heterocyclic group which is attached to the adjacent carbon atom by a carbon or nitrogen atom and optionally contains a further heteroatom selected from O and N, said 5- or 6-membered nitrogen-containing heterocyclic group being either (i) substituted by a phenyl or benzyl group or (ii) fused at two adjacent carbon atoms to a benzene ring, said benzene ring being optionally substituted by 1 or 2 substituents each independently selected from halo and C1-C4 alkyl, and said 5- or 6-membered nitrogen-containing heterocyclic group being optionally substituted by up to 2 substituents each independently selected from oxo, halo and C1-C4 alkyl with the proviso that only one oxo substituent can be present.
Patent CA-1287042-C (CA)
Title: Method and apparatus for lateral drilling in oil and gas wells
Inventor: BURTON MICHAEL B
IPC: E21B7/10
Filed: 1987-07-31
Granted: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE       A method and associated apparatus for lateral drill-ing in an oil and/or gas well involving either stopping the drilling or temporarily cementing in a plug in the exist-ing well bore at the desired location for deviation.  A tight radius of curvature is then rotary drilled by use of a flexible drilling collar made up of a series of short drill string sections interconnected by universal joints that terminate within an eccentric collar on the final drill string section.  The eccentric collar is equipped with a sidewall engaging means to hold the eccentric collar from rotating during rotary drilling.  A flexible collar (e.g., ball and socket) extending outwardly and downwardly from the far end of the final drill string section passing through the eccentric collar connects to a drill bit collar and rotary drill bit.  A stabilizer/reamer of essentially the same size or slightly larger diameter than the drill bit surrounds the drill bit collar, thus producing a ful-crum for tilting the drill bit perpendicular to the well bore.  The eccentric collar on the last drill string section that engages the well bore forces the deflection of the drill bit about the fulcrum and holds this orientation as the rotating drill proceeds forward.  Such a technique can achieve a twelve foot radius of curvature in an exist-ing oil or gas well bore for establishing lateral drain holes essentially horizontal to the otherwise vertical well bore.
Patent CA-1292464-C (CA)
Title: Radially stabilized drill bit
Inventor: RANEY RICHARD C
IPC: E21B10/62
Filed: 1987-08-20
Granted: 1991-11-26
Abstract: RADIALLY STABILIZED DRILL BIT                   ABSTRACT OF THE DISCLOSURE         A stabilized drill bit has a cylindrical main body, a formation cutting face at the lower end of the body, and means by which the upper end of the bit can be connected into a drill string.  A drilling fluid flow passageway extends axially through the main body and provides flow of drilling fluid to the drilling face.  A plurality of hydraulic actuated stabilizing members are arranged circumferentially about the throat and within the main body.  Stabilizing members have a borehole wall engaging face thereon which can be retracted flush with the outer surface of the main body, and extended away from the main body face and into con-tact with the borehole wall, thereby stabilizing the drill bit as the bit is rotated while making hole.  Hydraulic means is con-nected to the stabilizing members by which the members are pro-gressively extended toward the borehole wall as the members become worn, and which normally prevents retraction of the stabilizing members so long as drilling fluid pressure is effected within the passageway.  The stabilizing members are retracted when the drilling fluid is reduced to a predetermined value.
Patent CA-1289887-C (CA)
Title: Composition containing gamma-linolenic acid and calcium
Inventor: HORROBIN DAVID F
IPC: A61K36/00
Filed: 1987-09-09
Granted: 1991-10-01
Abstract: THERAPEUTIC COMPOSITION AND METHOD                            ABSTRACT        Combinations of gamma-linolenic acid (GLA) and calcium, presented for administration in assimilable dosage unit form in doses of 1mg to 100g GLA and 1mg to 20g calcium daily, for example, for the treatment of osteoporosis and other bone disorders involving calcium loss from the bones, of premenstrual syndrome, or of hypertension.
Patent CA-1308747-C (CA)
Title: Scale assembly
Inventor: DILLON BENNY N
IPC: G01G19/02
Filed: 1988-01-12
Granted: 1992-10-13
Abstract: Abstract There is described a scale assembly for use in weighing a load.  The scale assembly includes load sensors for providing an output indicative of the magnitude of a load and a platform for receiving a load to be weighed and supported at locations longitudinally spaced along the platform by the load sensors.  The platform comprises an upper portion which includes a body of concrete, a lower portion disposed below the upper portion and formed of metal, the lower portion includes a plurality of spaced apart longitudinally extending metal beams.          Connectors are provided for preventing relative movement between the body of concrete and the lower portion of the platform upon the application of a load to the platform.  The body of concrete is stressed only in compression and the longitudinally extending beams are stressed in tension when the platform receives a load to be weighed.  The platform has only one neutral plane which separates the portion of the platform stressed in compression from the portion of the platform stressed in tension.  The neutral plane is disposed in the lower portion of the platform below the body of concrete.
Patent CA-1308387-C (CA)
Inventor: GILBERT SERGE
IPC: B65F1/00
Filed: 1988-01-15
Granted: 1992-10-06
Abstract: ABSTRACT OF THE DISCLOSURE         A  frame  adapted  for  the  separation  and  temporary disposal of  recoverable  and  non-recyclable waste  material is disclosed.   The frame  has a flat base and a first box structure upwardly frontwardly tilted above and secured to the base, A  second  identical  box  structure  is   partly  overlappingly, tiltedly  mounted  at  the  upper  front portion of the first box structure,  Both box  structures are  adapted to  contain a rigid rectilinear can  openably sealable  by a  lid,  The frame defines two  closed  compartments  and  four  open  compartments  for the storage of waste.
Patent CA-1305154-C (CA)
Title: Substituted dioxolan and dioxan derivatives
Inventor: KARRER FRIEDRICH
IPC: C07D317/54
Filed: 1988-01-15
Granted: 1992-07-14
Abstract: 5-16287/1+2 Substituted dioxolan and dioxan derivatives Abstract Novel substituted 1,3-dloxolan and 1,4-dioxnn derivatives of formula I                                                        (I) in which Rl, R2, R3, R4, Rs and R6 each independently of the others repre-sents hydrogen or C1-C4-alkyl or, if n=1, R2 and R4 together represent one of the radicals (CH2)3 or (CH2)4; R7 represent hydrogen, halogen, methyl, ethyl, Cl-C2-alkyl sub-stltuted by 1 to 5 halogen atoms, methoxy, ethoxy or C1-Cz-alkoxy substituted by 1 to 5 halogen atoms; R8 represents halogen, C1-C3-alkyl, Cl-C3-alkyl substituted by 1 to 7 halogsn atoms, C1 C3-alkoxy, Cl-C3-alkoxy substituted by 1 to 7 halogen atoms, or cyano U represents a grouping -CH- or -N-; X represents -O-, -S- or -N(R9)-; Y represents -O-, -S-, -S(O)-, -S(02)-, -CH2-, -CO- or -N(R9)-, wherein R9 represents hydrogen, C1-C4-alkyl or alkylcarbonyl having a total of from 2 to 4 carbon atoms; n is a number 0 or l; m is a number 0, 1 or 2; p is a number 1, 2 or 3; and Z represents one of the radicals         or              wherein R10 represents hydrogen, methyl or ethyl; R11 represents hydrogen, Cl-C6-alkyl, C3-C6-cycloalkyl, C2-C4-alkenyl, C2-C4-alkynyl, alkoxyalkyl having a total of 2 to 6 carbon atoms, Cl-Ch-alkyl substituted by 1 to 7 halogen atoms, benzyl or benzyl substituted in the nucleus by a halogen atom, by a Cl-C3-slkyl radlzal or by a Cl-C3-alkoxy radical, cyanomethyl, (Cl-C2-alkoxy)-carbonyl or the radical -CH2-NH-COO-(C1-C2-alkyl); R12 represents hydrogen, C1-C6-alkyl, phenyl, phenyl substituted by 1 to 3 substituents from the group consiting of halogen, C1-C4-alkyl, Cl-C3-alkyl substituted by 1 to 7 halogen atoms, C2-C4-alkenyl, C2-C4-alkynyl, C1-C3-alkoxy, Cl-C3-alkoxy aubstituted by from 1 to 7 halogen atoms, alkoxyalkyl having a total of from 2 to 5 carbon atoms, C3-C4-alkenyloxy, C3-C4-alkynyloxy and Cl-C3-alkyl-thio, or represents pyridyl, furan-2-yl, thien-2-yl or the radical        ;  or R13 and R14 together represent one of the groups (CH2)3, (CH2)4  or (CH2)5; and R13 and R14 each independently of the other represents hydrogen, halogen or C2-C3-alkyl; or R13 and R14 together represent the group (CH2)4.            Processes for the preparation of these compounds and their use in pest control, especially for controlling insects and representatives of the order Acarina, are described.
Patent CA-1292043-C (CA)
Inventor: ZDUNEK KENNETH J
IPC: H04B7/15
Filed: 1988-02-02
Granted: 1991-11-12
Abstract: METHOD FOR DYNAMICALLY ALLOCATING DATA CHANNELS ON A             TRUNKED COMMUNICATION SYSTEM          Abstract Disclosed is a method to dynamically allocate a number of data channel  on a trunked radio system (100). The data activity is monitored during a predetermined time interval.  If activity is above a predetermined maximum, an additional channel may be reserved for data use.  Conversely, if data traffic is low, a data channel may be  reallocated for voice message use.  Moreover, should the amount of data traffic among the available data channels be unbalanced, the present method contemplates reassigning subscriber units (114 or 116) to the available data channels to balance the data traffic load, thereby providing superior access time and system performance.
Patent CA-1324270-C (CA)
Inventor: WERT DAVID E
IPC: C22C38/22
Filed: 1988-02-04
Granted: 1993-11-16
Abstract: Abstract of the Disclosure A hot work tool steel has high hardness capability and improved toughness when air cooled in section sizes of 6 inches (15.24 cm) or larger.  The alloy steel which is deep air hardenable, has good dimensional stability and exception-al wear resistance, in its broad scope consists essentially of about 0.35-0.6 w/o carbon, 1.0 w/o max. manganese, 2.0 w/o max. silicon, 5.7-7.0 w/o chromium, 1.65-2.2 w/o molybdenum, 0.6-1.1 w/o vanadium, and the balance is iron except for the usual impurities found in commercial grades of such alloy steels.
Patent CA-1319327-C (CA)
Inventor: KUNIN ROBERT
IPC: B01D39/04
Filed: 1988-02-09
Granted: 1993-06-22
Abstract: A method for removing impurities from a liquid utilizing a filter bed having polyester fibers which have been treated with a hot caustic solution to increase the hydrophilicity of the polyester fibers. The caustic solution preferably contains a surfactant to increase the initial wetting of the polyester fibers.
Patent CA-1279091-C (CA)
Title: Single connection gas discharge display and driver
Inventor: IANNINI ROBERT E
IPC: H01J17/38
Filed: 1988-03-30
Granted: 1991-01-15
Abstract: ABSTRACT OF THE DISCLOSURE An elongate cold cathode gas discharge tube comprises a gas discharge tube containing an ionizable gas having a cathode element disposed to cause ionization of the gas and a power source connected to provide an alternating voltage, referenced to ground potential, to the cathode element and of sufficient magnitude and frequency to cause the gas to ionize through the natural surrounding capacitance between the ionized gas and ground potential, the power source being adjustable to provide a variable voltage thereby to vary the extent of ionization of the gas, along the tube in a direction away from the cathode element.     An improved method of causing illumination of an elongated cold cathode gas discharge tube containing an ionizable gas and having a cathode element disposed to cause ionization of the gas comprises the steps of:     (a)  connecting an alternating voltage referenced to ground potential and of sufficient frequency to cause the gas to ionize through the natural surrounding capacitance between the ionized gas and ground potential to the cathode element; and (b)  varying the voltage between first and second levels whereby the extent of ionization of the gas along the tube in a direction away from the cathode element will vary with and be determined by the voltage.
Patent CA-1338615-C (CA)
Inventor: JIN SUNGHO
IPC: H01L39/24
Filed: 1988-04-21
Granted: 1996-10-01
Abstract: Disclosed are normal metal-clad superconductive bodies (e.g., wires, ribbons) having a normal metal cladding that is porous during at least a part of the manufacture of the body. The porous cladding permits access of an ambient atmosphere to the superconductive material. Exemplarily, the superconductive material is an oxide such as a (Ba, Y) cuprate, the normal metal cladding comprises Ag particles (or Ag-coated particles), and the body is heat treated in an oxygen-containing atmosphere. Techniques for producing such a body are also disclosed.
Patent CA-1284811-C (CA)
Title: Heater mechanism with thermoelectric power generator
Inventor: DAMMERS DIETER
IPC: F24H9/00
Filed: 1988-05-11
Granted: 1991-06-11
Abstract: Abstract of the Disclosure A heater mechanism that includes a combustion chamber that is heated up by open flames of a combustion gas generated from solid,  liquid,  or gaseous fuel, with heat being transferred from the combustion chamber to a heat-carrier that,  for indirect or direct transfer of heat to a room that is to be heated, is conveyed via at least one flow-producing mechanism, which is driven by an electric motor that is supplied with power that is obtained via  at  least  one  thermoelectrical  generator directly from the heat generated by the flame in the combustion chamber.  This generator is embodied as a plate-like semiconductor element having a cold side and a side that is to be heated up.  The cold side is disposed in the inlet region for still-cool heat-carrier,  or in  the vicinity of  the ambient air.  The side that is to be heated up is disposed either in the convection range of the flame of the combustion chamber,  or in the exhaust gas stream from the latter.