baber/WOPTO huggingface dataset:
Patent CA-2008597-A1 (CA)
Title: Apparatus for reducing the content of toxic gases expelled from internal combustion engines
Inventor: CAPRIULO BARTOLOME
IPC: F02M31/14
Filed: 1990-01-25
Abstract: ABSTRACT An apparatus for reducing the content of toxic gases expelled from internal combustion engines; comprising a liquid fuel evaporator containing fuel-level controlling means and air intake tubes bubbling air into the fuel, said evaporator being surrounded by a jacket through which the engine hot exhaust gases flow; liquid fuel being carried from said evaporator to the carburetor, the outlet of which is connected to another conduit coming from the evaporator, the resulting flow being directed to the inlet manifold of the engine.
Patent CA-2010030-A1 (CA)
Inventor: ADACHI HIROSHI
IPC: C09K13/06
Filed: 1990-02-14
Abstract: A method for transferring patterns on a silicone ladder type resin, which comprises: applying onto a substrate a silicone ladder type resin to be represented by the following general formula (I)           (I) (where: R1 denotes a phenyl group or a lower alkyl group, and two R1's may be the same or different kinds; R2 denotes hydrogen atom or a lower alkyl group, and four R2's may be the same or different kinds; and n represents an integer of from 5 to 1,000); drying the thus applied resin layer; thereafter applying onto the resin layer a cresol novolac type positive photo-resist; forming a predetermined pattern in the photo-resist layer; subjecting the photo-resist layer to pretreatment; and finally etching the silicone ladder type resin.    An etching liquid for etching a silicone ladder type resin, which comprises an aromatic type solvent.
Patent CA-2011073-A1 (CA)
Title: Directly paintable thermoplastic polyolefin blend
Inventor: BENEFIELD ROBERT E
IPC: C08L23/12
Filed: 1990-02-28
Abstract: DIRECTLY PAINTABLE THERMOPLASTIC POLYOLEFIN BLEND           ABSTRACT OF THE DISCLOSURE           A polyolefin-EPDM or EPM thermoplastic blend in which the bonded relation of applied organic coatings is improved by the inclusion of an oxidized or carboxylated polyolefin.
Patent CA-2012870-A1 (CA)
Inventor: HEGNER GUNTER
IPC: H05K1/02
Filed: 1990-03-22
Abstract: A protective plug for connector banks is used in telecommunication  and  data  systems,  and  includes  a housing for receiving protective elements connected to establish an electrical connection to an earth rail with a disconnecter contact to a bifurcated contact provided on a plug tongue, respectively.  The disconnecter contact is provided with terminal contacts for incoming and outgoing  cable  conductors.    In  order to provide  a protective plug which protects against overvoltages and also serves as a fuse against overcurrents and for which the outside dimensions allow a close-fit construction of several protective plugs, the plug tongue is a printed-circuit board extending into the housing such that two housing compartments  are  formed  inside the housing. Inside the housing compartments on either side of the printed-circuit board protective elements are disposed, which are connected to one another by means of circuit traces and through-plated terminal positions.
Patent CA-2012963-A1 (CA)
Title: Pneumatic tire
Inventor: TOYOHARA KIYOSHI
IPC: B60C11/00
Filed: 1990-03-23
Abstract: Abstract of the Disclosure A pneumactic tire having a  contact  shape  of  its tread surface, which has a maximum contact length  L  in  the circumferential direction of the tire  on  the  center  of  a maximum contact width and a contact  length  ?  in  the  tire circumferential direction at a location at a distance of 90 % of one half of the maximum contact width from the  center  of the maximum contact width, on each side of  this  center, in which the ratio of  the  contact  length  ?  to  the  maximum contact length L is smaller than 0.65, and which has toe  end and heel end contours comprising a curve  gradually  reducing the contact length  in  the  tire  circumferential  direction towards each side  end  from  the  location  of  the  maximum contact length L.
Patent CA-2016281-A1 (CA)
IPC: B60C27/10
Filed: 1990-05-08
Abstract: CONNECTOR FOR LATERAL CABLE OF TIRE CHAINS                         ABSTRACT         Traction-enhancing tire chains with a lateral cable having a tension-applying connector for inter-connecting the opposite ends of the lateral cable for attaching the tire chains to a tire.  A clasp is attached to a pin slidably disposed in a cam slot defined in a tensioning lever attached to one end of the lateral cable.  The clasp hooks about a selected anchor on the opposite end portion of the lateral cable and applies tension to the lateral cable as the lever is rotated to a tensioning position.  The clasp slides along the cam slot and is pivotable with respect to the lever.  A hook on the movable end of the lever extends over the lateral cable to hold the lever in the ten-sioning position.  The lever and a hook which is also slidably disposed in the cam slot cooperatively hold excess cable against the side wall of the tire to keep it from flapping about during use of chains incorporating the fastener.
Patent CA-2017195-A1 (CA)
Title: Apparatus for changing disposable bedding on a mattress
Inventor: OATS EDWIN O
IPC: A47C21/02
Filed: 1990-05-18
Abstract: APPARATUS FOR CHANGING DISPOSABLE BEDDING ON A MATTRESS                          ABSTRACT    In storage and utilization of disposable bedding materials as for example for institutional usage, non-woven bedding materials dispensably secured to a portable bed, and including tensioning therefor, whereby the two or more bedding materials such as sheets are held in superposed and stretched relation to the mattress of a bed, the system to include means for longitudinally shifting used portions of bedding materials, for cutting same, while simultaneously replacing same in bedding relation to a bed mattress.  Sheets may either be pulled, hand-cranked or motorized on a bed.
Patent CA-2019418-A1 (CA)
Title: Method for producing white electrically conductive zinc oxide
Inventor: HAYASHI TAKAO
IPC: H01B1/08
Filed: 1990-06-20
Abstract: ABSTRACT OF THE DISCLOSURE:          A method  for producing white electrically conductive zinc oxide comprising reacting an aqueous alkali solution with a solution which contains a water-soluble zinc compound and at least one water-soluble metal compound selected from the group consisting of tin, gallium, indium and aluminum compounds to form co-precipitates so that the amount of at least one member selected from the group consisting of tin oxide, gallium oxide, indium oxide and aluminum oxide determined after calcination of the co-presipitates ranges from 0.005 to 5.0 parts by weight to 100 parts by weight of zinc oxide, while simultaneously feeding these two solutions to a reaction zone so that pH value of the reaction solution is maintained at a desired value falling within the range of from 6 to 12.5;   and then calcining the resultant co-precipitates in a reducing atmosphere.
Patent CA-2019980-A1 (CA)
Title: Analytical assay method
IPC: G01N31/22
Filed: 1990-06-27
Abstract: A method for determining the amount of an analyte in a sample fluid utilizes a multilayer assay element which comprises at least one reagent layer and a light-blocking layer.  The assay method includes the steps of optically reading a signal producing species, e.g. a fluorescent label, a first time before the sample fluid is applied to the assay element and a second time, at the same wavelength and in the same location within the assay element, after the sample fluid has been applied to the assay element and the sample analyte has interacted with the reagent(s) present in the assay element.  The ratio of the two signals is taken and compared with that for known amounts of the analyte to determine the amount of analyte in the sample fluid.
Patent CA-2021477-A1 (CA)
Title: Well apparatus
Inventor: WATKINS BRUCE J
IPC: E21B19/08
Filed: 1990-07-18
Abstract: WELL APPARATUS                          ABSTRACT     There is disclosed an offshore well  installation wherein a shoulder of a casing hanger body supported within a casing head on a platform at the water surface has been lowered onto a seat in the head so as to support a casing string anchored at its lower end to a mudline hanger in tension, the lower end of the hanger body being connected to the upper end of the string by an adjustable sub which is manipulated by a tool lowered through the hanger body and into the sub so as to adjust it from an extended position in which its shoulder is above the seat in the head to a retracted position in which the shoulder is seated on the head and the casing string is placed in tension.
Patent CA-2023873-A1 (CA)
Title: Belt weatherstrip for automotive vehicle
Inventor: VAUGHAN ROBERT A
IPC: B60J10/04
Filed: 1990-08-23
Abstract: A flange finisher strip has a reinforcement member and elastomeric cover. The reinforcement member is chapel shaped in cross section with a member extending inwardly into the channel. A retaining mechanism is associated with the extending member to secure the strip onto a flange.
Patent CA-2024921-A1 (CA)
Title: Method and apparatus for the optimization of thyristor power supply transport time delay
Inventor: PETERSON ROBERT S
IPC: H02P7/285
Filed: 1990-09-07
Abstract: 54,955 ABSTRACT OF THE DISCLOSURE A digital   current  control  arrangement  for optimizing the transport time  delay of a thyristor power supply used as a source of armature current for a DC motor utilizes  a  coarse  gate  angle  interrupt  subroutine to perform a preliminary calculation of the gate firing angle for the next thyristor to be fired.  The coarse gate angle calculation is performed at a predetermined time following the firing of a previous thyristor.   A  finite gate angle interrupt  subroutine  is  also provided for recalculating the gate firing angle at a second predetermined  time just prior  to  the  firing  of  the thyristor.  The finite and coarse gate angle interrupt subroutines both perform their respective  calculations  using  the common parameters.  A flag passing arrangement is  also included  in the current control arrangement  and is  effective to  insure that the finite gate firing angle is the preferred calculation used in the firing of the next thyristor.
Patent CA-2025212-A1 (CA)
Title: (2-imidazolin-2-ylamino) tetrahydroquinoxalines and methods for using same
Inventor: GLUCHOWSKI CHARLES
IPC: A61P27/02
Filed: 1990-09-12
Abstract: A compound selected from the group consisting of those having the formula: <CHEM> and pharmaceutically acceptable acid addition salts thereof, wherein R1 wherein R1 and R4 are independently selected from the group consisting of H and alkyl radicals containing 1 to 4 carbon atoms, R2 and R3 are independently selected from the group consisting of H, O, and alkyl radicals containing 1 to 4 carbon atoms, the 2-imidazolin-2-ylamino group may be in any of the 5-, 6-, 7- or 8- positions of the quinoxaline nucleus, and R5, R6 and R7 each is located in one of the remaining 5-, 6-, 7- or 8- positions of the quinoxaline nucleus and is selected from the group consisting of Cl, Br, H and alkyl radicals containing 1 to 3 carbon atoms. Such compounds, when administered to a mammal, provide desired therapeutic effects, such as alteration in the rate of fluid transport in the gastrointestinal tract, reduction in intraocular pressure, and increase in renal fluid flow.
Patent CA-2026656-A1 (CA)
Title: Ink circuit, namely for pressurizing pigmented ink in an ink-jet printer
Inventor: PERRIN MAX
IPC: B41J2/045
Filed: 1990-10-01
Abstract: PCT No. PCT/FR90/00696 Sec. 371 Date Jul. 24, 1991 Sec. 102(e) Date Jul. 24, 1991 PCT Filed Sep. 28, 1990 PCT Pub. No. WO91/04862 PCT Pub. Date Apr. 18, 1991.An ink circuit particularly intended for pressurizing a pigment ink, for an ink jet printer, is disclosed. The main pressurization line (40) is connected to a first head (9) of a compressor (7), and the depressurization line (45) is connected to a second head (15) of the same compressor (7). Both pressurization and depressurization lines are totally independent from the ink circuits. Magnetic agitators means (3, 4) are provided at the base of the reservoirs (1 and 2) in order to avoid pigment settling. The ink circuit applies to the marking of media or supports, requiring an opaque white ink.
Patent CA-2026746-A1 (CA)
Title: Detergent compositions
Inventor: FALOU MOHAMED S
IPC: C11D1/14
Filed: 1990-10-02
Abstract: ABSTRACT    A detergent composition including a surfactant system the major proportion of which consists of:   i)   an anionic surfactant material which is a)   an internal olefin sulphonate derived from an internal olefine having the general formula:                      R1 - CH = CH - R2        (I) of   b)   a vinylidene sulphonate derived from a vinylidene having the general formula:     C = CH2        (II) or   c)   a mixture thereof, R1 and R2 being alkyl groups which are the same or different and have 10 to 16 carbon atoms in total; and ii)  a nonionic surfactant material having an HLB value of not more than 10.5, the weight ratio of (i) to (ii) lying between 9:1 and 1:9.
Patent CA-2032870-A1 (CA)
Title: Method of manufacturing ceramic insulated wire
Inventor: SAWADA KAZUO
IPC: H01B3/10
Filed: 1990-12-20
Abstract: ABSTRACT OF THE DISCLOSURE      A method of manufacturing a ceramic insulated wire comprises a step of preparing a gel compound formed by dissolving a metal-organic compound in a solvent and adding at least one thermoplastic polymer or a monomer thereof to the dissolved metal-organic compound and a step of extruding the gel compound around the outer periphery of a conductor for coating the conductor.  The conductor and gel compound coating are subsequently heated to sinter the gel compound to form a ceramic insulation on the conductor.
Patent CA-2035138-A1 (CA)
Inventor: CLERMONT CHRISTIAN
IPC: B29C65/48
Filed: 1991-01-29
Abstract: Hollow fibre apparatus comprising: an elongate vessel (41) at the two ends of which there is a partition (48) supporting the open ends of a bundle of hollow fibres (47), the vessel (41) being closed at each of its ends by a lid (50). 
<??>This apparatus is characterised in that it comprises a resin-based circular seal (55) arranged at the periphery of the partition (48) and in the proximity of the hollow fibres (47), this seal (55) forming, on the inner side of the vessel, a concave connecting surface (56) joining, without appreciable break in the continuity, the inner surface (52) of the lid (50) to the partition (48) or to the end surface (49) of the vessel. 
<??>This apparatus can be employed especially as an artificial kidney. 
<IMAGE>
Patent CA-2039318-A1 (CA)
Title: Method of reducing a carbonyl containing acridine
Inventor: LEE THOMAS BIN KIN
IPC: C07B61/00
Filed: 1991-03-28
Abstract: ABSTRACT            A method of reducing a carbonyl containing acridine of the formula   (I) where n is 1,2 or 3; X is hydrogen, loweralkyl, loweralkoxy, halogen, hydroxy, trifluoromethyl, or NR3R4 where R3 and R4 are independently hydrogen or loweralkyl; R is hydrogen or loweralkyl and R1 is hydrogen, loweralkyl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, furylloweralkyl, thienylloweralkyl, oxygen-bridged arylloweralkyl, oxygen-bridged diarylloweralkyl, oxygen-bridged furylloweralkyl or oxygen-bridged thienylloweralkyl, is disclosed.
Patent CA-2041469-A1 (CA)
Title: Co-planar seal arrangement
Inventor: BEAR CLAYTON
IPC: F04D29/04
Filed: 1991-04-30
Abstract: CO-PLANAR SEAL ARRANGEMENT Abstract of the Disclosure The axial forces imposed on a rotor of a fluid machine such as a compressor are controlled by modulating the pressure supplied to a fluid motor.  The motor includes a pair of radially spaced seal assemblies extending between the end walls of the motor to define an annular cylinder.  The nested seal assemblies provide a compact fluid motor.
Patent CA-2043178-A1 (CA)
Title: Cleaning devices and methods
Inventor: YOUNG RONALD A
IPC: A47L13/254
Filed: 1991-05-24
Abstract: A B S T R A C T              "CLEANING DEVICES AND METHODS"            A device or method provides, or utilises, a sheet 5 of material which when used with a damp backing 4 for wiping of a surface to be cleaned collects dust and grit from that surface in a smear-free fashion.  The material of the sheet 5 is non-absorbent, at least over a portion of its thickness providing the wiping surface 5b, and is porous with the property that dampness from the backing 4 permeates the material only so as to provide a vapour state at the surface being wiped.  As a result of the vapour state the wiped surface is not damped or wetted in a manner which leaves smears - so far as the surface is concerned the effect is as with a dry wipe whereas so far as the dirt collection is concerned dust and grit adheres to the sheet more in the manner of a wet wipe material.
Patent CA-2043290-A1 (CA)
Title: Wireless telephone service access method
Inventor: KERIHUEL JEAN-BERNARD
IPC: H04L9/14
Filed: 1991-05-27
Abstract: It consists in: - storing and updating, in the databases of operating points (14, 15, 16), words identifying each subscription and the corresponding telephone, and a secret key; - transmitting from the telephone (T1) of the requester, to a network service operating point (14), words identifying the subscription of the requester and his telephone; - determining in the telephone (T1) of the requester a first signature dependent on a random number and on the secret key; - transmitting it to the said network service operating point (14) via the user-to-user signalling channel (D); - determining in the said network service operating point (14) a second signature depending on the same random number and on the secret key; - verifying in the said network service operating point (14) that: the first and the second signatures are identical; that the word identifying the subscription corresponds to a valid subscription; that the word identifying the subscription corresponds to the word identifying the telephone of the requester. Application to cordless telephone networks. <IMAGE>
Patent CA-2046434-A1 (CA)
Title: Method for underground storage of gas
Inventor: TEK MEHMET R
IPC: B65G5/00
Filed: 1991-07-08
Abstract: ABSTRACT OF THE INVENTION           A  method  for  underground  storage  of  a  gas  is disclosed in which the stored gas or top gas is physically separated from the cushion gas to avoid undesired intermixing of the two gases.  This enables a less expensive cushion gas to be  used  resulting  in a significant cost  savings  in  the development and use of an underground storage cavern.  The gas separation can be accomplished by dividing the cavern into two portions using a flexible membrane attached at its periphery to the walls of the cavern,  installing a plurality of balloons inflated with the cushion gas in the cavern or inflating a single large bladder in the cavern with the cushion gas.  With additional separation of the cavern into multiple portions, a plurality of gases can be  simultaneously stored in a single cavern.
Patent CA-2047422-A1 (CA)
Title: Device for the automatic handling of objects
Inventor: KREMER NORBERT
IPC: B25J15/00
Filed: 1991-07-19
Abstract: ABSTRACT       Device for the automatic handling of objects The device mounted at the end of an operating arm comprises one or more suckers for supporting objects, for example  refractory bricks  for the brick-lining of  a metallurgical converter, means for linear and angular displacement of the suckers, sensors for monitoring and controlling automatically the means of displacement in order to grip and position the objects in a predetermined location, after immobilisation of the operating arm. The suckers (26) are provided on a sucker-carrying plate (28) which in its turn is supported by a pair of blocks (30, 32) which can slide in transverse slide bars (36, 38) of a carriage (40) which comprises a pair of longitudinal slide bars  (46,  48),  perpendicular to the transverse slide bars (36, 38) and housed in sliding fashion in a central support (50) attached to the end of the operating arm (20) with a degree of angular freedom and a degree of linear freedom orthogonal to the axes of the longitudinal and transverse slide bars.        Figure 1.
Patent CA-2049733-A1 (CA)
Title: 6,7-dihydro-3-phenyl-1,2-benzisoxazol-4(5h)-ones and -ols, a process for their preparation and their use as medicaments
Inventor: WETTLAUFER DAVID G
IPC: A61K31/425
Filed: 1991-08-22
Abstract: This invention relates to 6,7-dihydro-3-phenyl-1,2-benzisoxazol-4(5H)-ones and -ols of the formula (see Formula I) wherein X is (see Formula II) or loweralkyl; Y is hydrogen, halogen, loweralkyl, loweralkoxy, trifluoromethyl, nitro or amino; R is H when the bond between the oxygen atom and the carbon atom in question is a single bond; otherwise the dotted line signifies part of a double bond to the oxygen atom; R1 is hydrogen, loweralkyl or arylloweralkyl; R2 and R3 are independently hydrogen, loweralkyl or arylloweralkyl, or R2 and R3 taken together with the nitrogen atom form an optionally substituted heterocycle selected from the group consisting of piperidinyl, pyrrolidinyl, morpholinyl, imidazol-1-yl, 1-piperazinyl, said substituents being hydrogen or loweralkyl; 4-substituted-1-piperazinyl of the formula (see Formula III) 9 where R6 is loweralkyl, aryl, arylloweralkyl, (see Formula IV, V) 2-pyrimidyl,  , 2-pyridinyl of the formula   or 4-pyridinyl of the formula  ; 4-substituted-1-piperidinyl of the formula  , wherein R7 is hydrogen, loweralkyl, aryl, arylloweralkyl, 2-pyridinyl of the formula  , 4-pyridinyl of the formula  , 2-pyimidinyl of the formula   arylcarbonyl,  ; R8 is hydrogen or -OH; R4 is hydrogen, loweralkoxycarbonyl or aryloxycarbonyl; Z is chlorine, bromine or fluorine; m is an integer of 1 to 4; n is an integer of 1 to 4 or a pharmaceutically acceptable acid addition salt thereof and where applicable the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention display utility as antipsychotic agents and analgesic agents.
Patent CA-2050206-A1 (CA)
Title: Door lock security device
Inventor: KAM HING K
IPC: E05B13/00
Filed: 1991-08-29
Abstract: RBP File No. 6303-003\PE          ABSTRACT OF THE DISCLOSURE           A door lock security device is disclosed for locking over the shaft of a door lock rotary knob or a door knob.  The device comprises an inner cover which is further comprised of  first and second shell  portions having an opening between them for closing around the shaft of the door lock rotary knob or door knob, an outer cover which substantially encompasses and overlaps the inner cover to sufficiently shield the inner cover to prevent tampering, and a lock for releasably securing the outer cover to the inner cover.  When the inner and outer covers are engaged together around the shaft they prevent the door lock rotary knob or the door knob from being manipulated from a closed to an open position.   In one embodiment the first and second shell portions of the inner cover are hingedly attached along one edge while in a further embodiment the first and second shell portions are releasably secured together in a closed position at an opposite edge by a clasp.  In yet a further embodiment the device has a lip around the opening in the inner cover to provide limited contact between the door lock security device and the door knob or door lock rotary knob to reduce frictional contact.