baber/WOPTO huggingface dataset:
Patent CA-1278118-C (CA)
Title: Multicolor liquid crystal display system
Inventor: PIDSOSNY RICHARD A
IPC: G02F1/1335
Filed: 1986-12-02
Granted: 1990-12-18
Abstract: Abstract of the Invention A liquid crystal display system with energizable cell areas distinguishable from deenergized areas by contrasting color illumination from either a wideband back light or ambient front light source.  At least one color polarizer is disposed behind the liquid crystal cell and a linear analyzer polarizer is disposed in front of the liquid crystal cell so that the light simulta-neously emanating from the energized and deenergized areas of the display is in contrasting colors and of the same polarity.
Patent CA-1341197-C (CA)
Inventor: MULLNER HUBERT
IPC: C12P21/02
Filed: 1986-12-19
Granted: 2001-03-06
Abstract: Expression of a gene coding for human granulocyte macrophage colony-stimulating factor (CSF) in bacteria results in CSF proteins which are biologically active.      Modification of the natural or of a synthetic gene structure results in biologically active derivatives with a modified amino acid sequence.
Patent CA-1286093-C (CA)
Inventor: OETIKER HANS
IPC: F16L33/02
Filed: 1987-04-14
Granted: 1991-07-16
Abstract: Abstract An open clamp structure adapted to be tightened about an object to be fastened includes a mechanical connection between two mutually overlapping band portions.  Two outwardly extending hook devices are provided in the inner band portion operable to form-lockingly engage in an aperture provided in the outer band portion.  One hook device is a cold-deformed support hook having a force-engaging surface and another hook device is a combined guide and support hook having a force-engaging surface operable to initially guide the inner and outer band portions towards one another and to absorb circum-ferentially directed forces until assisted in such force absorption by the first hook device.
Patent CA-1279045-C (CA)
Title: Machine for filling receptacles with flowable materials
Inventor: GRUENE HELMUT
IPC: B65B3/32
Filed: 1987-04-16
Granted: 1991-01-15
Abstract: ABSTRACT           A machine for transferring metered quantities of flowable materials, such as yoghurt, between a source and successive receptacles on a conveyor has a housing with an inlet in register with the source and an outlet in register with successive empty receptacles on the conveyor, and a metering device which is rotatably mounted in the housing and has an internal chamber as well as an opening which communicates with the chamber and registers with the inlet in a first angular position of the metering device and with the outlet in a second angular position of the metering device.  The opening is provided in or close to one end portion of the metering device and the other end portion of the metering device extends from the housing and can be indexed between the first and second positions by a mechanism including a driving unit and a torque transmitting sleeve between the driving unit and the other end portion of the metering device.  The sleeve is fastened to the metering device, either directly by way of screws or similar fasteners, or indirectly by way of a tubular insert which surrounds a bearing for the piston rod of a piston reciprocable in the chamber of the metering device to draw flowable material into the chamber in the first position and to expel flowable material from the chamber in the second position of the metering device.
Patent CA-1311073-C (CA)
Title: Fluoropolymer compositions
Inventor: JOHNSON RODGER G
IPC: B32B15/08
Filed: 1987-04-21
Granted: 1992-12-01
Abstract: ABSTRACT               FLUOROPOLYMER COMPOSITIONS     A composition comprising (a) a vinylidene fluoride-hexafluoropropylene thermoplastic copolymer and (b) a a fluoroelastomer, such as vinylidene fluoride-hexafluoropropylene elastomeric copolymer, at least one of (a) and (b) being cross-linked, exhibits excellent physical properties.  The composition is particularly useful in the form of a heat recoverable article or  as wire and cable insulation.
Patent CA-1297803-C (CA)
Title: Catalitic converter and substrate support
Inventor: DRYER LEONARD J
IPC: B01D53/94
Filed: 1987-07-31
Granted: 1992-03-24
Abstract: Abstract of the Disclosure A  catalytic  converter  of  the  automotive  type  comprises  a converter substrate with a reduced central  section that compresses  a support mat around a substrate, the ends of the body being spherical for attachment to spherical flanges on end bushings or being an integral part of the body.  The method of manufacturing the converter substrate and converter is also disclosed.
Patent CA-1314464-C (CA)
Title: Method of determining a biological substance involving labelling with a metal chelate
Inventor: DAKUBU SALIFU
IPC: G01N33/533
Filed: 1987-09-23
Granted: 1993-03-16
Abstract: ABSTRACT      A biological  substance  is  determined with  the  use of  a marker comprising a  lanthanide or other metal ion coupled to the biological substance by means of a chelate-forming  compound.    The chelate  complex  is  dissociated by reduction of the ambient pH to a sufficiently low level to liberate the metal ion and the metal ion is then che-lated with  a  separate  chelating chromophore   with   an increase in the pH to a value closer to the optimum for determination of the metal-chelated chromophore by fluor-escence  spectroscopy,  luminometry,  colourometry  or  the like.
Patent CA-1314410-C (CA)
Title: Wiring structure of semiconductor pressure sensor
Inventor: NISHIGUCHI MASANORI
IPC: G01L9/00
Filed: 1987-12-07
Granted: 1993-03-16
Abstract: ABSTRACT OF THE  DISCLOSURE    A semiconductor pressure sensor comprises a sensor chip including an etching stop layer of high concentration impurity ions formed by ion implantation of impurity ions into  a  substrate  of  silicon  single  crystal  or  by deposition and diffusion and an epitaxial growth layer of silicon single crystal on the etching stop layer, a recess formed in the back of the sensor chip by etching, circuit elements formed on the sensor chip, diffusion leads for connecting the circuit elements, connecting regions, each formed between the etching stop layer and a predetermined position on the surface of the sensor chip, and diffusion regions,  each formed between the predetermined position and one of terminals of the circuit elements.
Patent CA-1291891-C (CA)
Inventor: INSTANCE DAVID J
IPC: B31D1/02
Filed: 1987-12-17
Granted: 1991-11-12
Abstract: ABSTRACT         Method and Apparatus for Producing Labels A method of producing a succession of self-adhesive labels on a length of release material, which method comprises the steps of:-(a)  applying a layer of pressure-sensitive adhesive to a surface of a length of release material;      (b)  applying a succession of individual labels to the layer of pressure-sensitive adhesive so as to adhere the labels to the release material; (c)  cutting through each of the labels and the layer of pressure-sensitive adhesive as far as the release material thereby to form the required self-adhesive labels; and (d)  removing the waste portions of the applied labels and the waste portions of the pressure-sensitive adhesive which surround the self-adhesive labels from the release material.  The present invention also provides apparatus for producing such self-adhesive labels.
Patent CA-1297172-C (CA)
Inventor: VIG JOHN R
IPC: B05D1/20
Filed: 1988-01-29
Granted: 1992-03-10
Abstract: ABSTRACT        The frequency of a piezoelectric resonator is precisely adjusted using monomolecular layer(s) of a thermally stable, low stress, uniform insulating film deposited on the active area of the resonator.  The method is particularly suitable for precisely adjusting the frequencies of high frequency (i.e., very thin) resonators, and the frequencies of lateral field resonators, without degrading stability.
Patent CA-1312852-C (CA)
Title: Low temperature synthesis of condensation polymers
Inventor: OGATA NAOYA
IPC: C08G63/87
Filed: 1988-02-04
Granted: 1993-01-19
Abstract: Abstract of the Disclosure LOW TEMPERATURE SYNTHESIS OF      CONDENSATION POLYMERS     Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200°C or greater. However, by utilizing the catalyst systems of the present invention, condensation polymers can be synthesized at much lower temperatures.  The polycondensation catalyst systems of the present invention are particularly useful for synthesizing aliphatic polyesters, such as polyethylene terephthalate, from dicarboxylic acids and aliphatic glycols.  The present invention more specifically discloses a process for the synthesis of an aliphatic polyester comprising polymerizing at least one dicarboxylic acid with at least one aliphatic glycol in the presence of (1) at least one phosphorus containing compound which contains at least one trivalent or pentavalent phosphorus atom which is bonded directly to at least one phenyl group, (2) an acid acceptor, and (3) at least one halogenated organic compound.  It is preferred to utilize a polymeric agent having bound acid acceptor groups as the acid acceptor in the process of the present invention.
Patent CA-1328060-C (CA)
Inventor: EGASHIRA NORITAKA
IPC: B41M5/382
Filed: 1988-03-21
Granted: 1994-03-29
Abstract: ABSTRACT OF THE DISCLOSURE       An image-receiving sheet comprising a base sheet and a receiving layer, provided on one surface of said base sheet, for receiving a dye or a pigment migrating from a heat transfer sheet,  said base sheet comprising one or two or more layers, at least one layer of said base sheet having a porous structure or a foamed structure.
Patent CA-1333565-C (CA)
Inventor: ZAMBO ISTVAN
IPC: A61K36/8962
Filed: 1988-04-18
Granted: 1994-12-20
Abstract: The  invention  relates  to  a  process  for  the preparation of therapeutically useful, highly stable soft gelatine  capsules  containing  naturally  occurring  oils obtained  by  the  cold  pressing  of  mainly  plant parts (seeds),  which comprises adjusting the free fatty acid content of the oil to a value according to an acid number of 0.3 to 4.5 by mixing oils of identical or different natural source with a different composition (acid number) characterized by an acid number of at most 4.5 and then filling the oil in a manner known in se into soft gelatine capsules optionally aromatized by 1 to 10% by mass of a synthetic flavouring agent.   The capsules thus obtained have a resistant double wall consisting of gelatine as an outer layer and of a complex as inner layer which is formed from the free fatty acid content of the plant oils and the gelatine.
Patent CA-1326319-C (CA)
Title: Thermosetting resin composition
Inventor: YAMAYA NORIMASA
IPC: C08K3/14
Filed: 1988-04-29
Granted: 1994-01-18
Abstract: Abstract A thermosetting resin composition formed of a polyaminobismaleimide resin, which is prepared from a bismaleimide compound and a diamine compound, and a powdery inorganic filler.  The composition has excellent heat resistance as well as superb mechanical properties at high temperature not to mention room temperature, and is expected to find wide-spread commercial utility in electric and electronic components, e.g., as a sealing material in sockets and connectors and for other applications.
Patent CA-1321415-C (CA)
Title: Non-linear squelch circuit for ieee-802.3 protocol
Inventor: HUANG FRED G
IPC: H04B1/10
Filed: 1988-06-24
Granted: 1993-08-17
Abstract: ABSTRACT OF THE DISCLOSURE    Method and apparatus for non-linearly filtering impulse and low frequency noise received over a network so as to avoid false activation of equipment is disclosed.  A squelch circuit assures that only multiple transitions of at least three half-cycles in the received waveform of a proper frequency and amplitude will activate the receive while a single half-cycle, although of a proper frequency and exceeding the threshold, will not falsely activate the receiver.  RC circuits provide a variable delay in the squelch portion of the filter to suppress impulses.  In an alternative embodiment, double half-cycles will not falsely activate the receiver.  Emitter-coupled logic (ECL) circuitry is preferably employed to provide speed adequate for ten-million bit per second transmissions.
Patent CA-1332512-C (CA)
Inventor: NEUSY HUBERT
IPC: C03B19/10
Filed: 1988-07-06
Granted: 1994-10-18
Abstract: The  invention  is  concerned  with  a spherulizing furnace and process of manufacturing vitreous  beads.   A  particulate   feedstock  is delivered to a heated chamber and passed along it so that the feedstock is heated and converted to vitreous beads whereafter the beads are collected. The chamber is shaped to provide a flow path for the  particulate  feedstock  which  comprises an elongate cross-section and which is arranged so that the particulate feedstock passes downwardly through the heated chamber under gravity from an upper end thereof to a lower end thereof.  The particulate feedstock passing through the chamber is  heated  by  radiant  heating  elements  which provide heat which emanates from the walls of the heated chamber. The process and apparatus of the invention enable vitreous beads to be produced at a reduced cost.
Patent CA-1305549-C (CA)
Title: Insulating barrier system for switchgear
Inventor: KALVAITIS ARVYDAS J
IPC: H02B1/14
Filed: 1988-07-20
Granted: 1992-07-21
Abstract: ABSTRACT A barrier system is provided for electrical switchgear having an enclosure and one or more access openings. The barrier system com-prises a plurality of barriers, each of which is a generally planar member. The barrier system further includes manually operable provisions for releasably securing each barrier in respective predetermined posi-tions, and a guide and support member carried by the enclosure and engaged by the lower edge of the rear portion of each barrier during insertion and also when the barriers are in a predetermined inserted operating position. The guide and support member directs the barrier into the appropriate position when the barrier is within a predetermined range of position with respect to the guide and support member. In a specific embodiment, the manually operable provisions include a fastening device which is retained by the barrier and a cooperating receptacle retained by the enclosure. The fastening device is preferably a fractional-turn wing-head stud. Additionally, the guide and support member in a specific embodiment includes a tapered guide surface narrowing to a receiving slot for each of the removable barriers.
Patent CA-1320049-C (CA)
Title: Energy saving method of melting glass
Inventor: PIEPER HELMUT
IPC: C03B5/027
Filed: 1988-07-26
Granted: 1993-07-13
Abstract: Abstract of the Disclosure Disclosed are an energy saving method for melting glass in and a glass melting furnace for the practice of the method.    A charge is melted in a melting section, clarified in a clarifying section adjoining the melting section, and then homogenized in an adjoining homogenizing section of increased bath depth and drawn therefrom.  The charge is fed in at the beginning of the melting section and energy is supplied underneath the charging end through electrodes.          The melting energy input is generated by combustion by fossil fuel burners in the clarifying section.  The burner flue gases flow over the melting section countercurrently to the charge and are exhausted close to the charge end. The surface of the melting section is swept by a flow coming from the clarifying section countercurrently to the charge.    The invention is also in a glass melting furnace for the practice of this method, in which, for the formation of the hot surface flow is a counterflow to the charge movement, the melting section bottom slopes downwardly from the clarifying section to the charging end.  The roof of the furnace between the burner section and the charging section has at least one radiation barrier extending to just above the bath surface.
Patent CA-1326147-C (CA)
Inventor: ANDERSON CARL
IPC: B21H5/02
Filed: 1988-08-19
Granted: 1994-01-18
Abstract: ROLL FORMING NOTCHES IN A THIN-WALL      POWER TRANSMISSION MEMBER                      ABSTRACT           An apparatus and method for forming a power transmission member from a thin-walled blank, the apparatus including a pair of dies (84) having opposed work surfaces, and a mandrel (50) positioned between the work surfaces of the dies (84) for receiving a blank (52) to be formed and rotated upon movement of the work surfaces of the dies in opposite directions during a forming operation.  The mandrel (50) includes a work surface for cooperating with the work surface of the dies (84).  Notch forming projections (70) on the work surfaces of the dies (84) cooperate with the work surfaces of the mandrel (50) for roll punching notches (72) through the blank (52) as the blank (52) is rotated between the moving dies (84).
Patent CA-1302745-C (CA)
Inventor: SALVO CHRISTOPHER A
IPC: A61C13/30
Filed: 1988-09-19
Granted: 1992-06-09
Abstract: ABSTRACT      A stressless pin or post for dental preparations to seat in a predrilled hole or root canal without subjecting the tooth substance to lateral stress.  The pin or post has a head, neck and shank and is an elongated member formed by crimping the midpoint of a bar, folding the bar in a predetermined configuration about the rings so that the pin or post consists of side-by-side sections joined only at the top of the head portion.
Patent CA-1302537-C (CA)
Inventor: BRANDES HENNING F
IPC: H01R13/639
Filed: 1988-10-05
Granted: 1992-06-02
Abstract: Electrical Connector Retaining Ratchet Abstract of the Disclosure A ratchet apparatus is disclosed for preventing inadvertent decoupling of two couplable members, such as plug (12) and receptacle (13) parts of an electrical connection apparatus.  The plug has a coupling nut (14) mounted on it, the coupling nut having threads for engaging the receptacle member and drawing the plug and receptacle together in response to relative rotation between the coupling nut and receptacle.  An elongated ratchet strip (18) bearing ratchet teeth (20) is disposed about the outer circumference of the plug member.  The coupling nut carries ratchet pins (30) distributed generally about its inside diameter for engagement against the ratchet strip teeth.  The coupling nut also carries a spiral wound ratchet retaining ring (36) about the outside of the ratchet pins for exerting and maintaining radially inward force on the ratchet pins to maintain resilient engagement of the pins with the teeth of the ratchet strip.
Patent CA-1327528-C (CA)
Inventor: MITCHELL ROBERT L
IPC: A61K8/34
Filed: 1988-10-07
Granted: 1994-03-08
Abstract: PACKAGED DENTAL CREAM            ABSTRACT     Dental cream in contact with a polyolefin resin surface of a package such as a laminate tube, a mechanical dispenser or a flexible sachet. The dental cream contains a dentally acceptable water-insoluble alkaline earth metal salt, a liquid vehicle, a gelling agent and an additive which prevents syneresis.  The liquid vehicle contains water, glycerine and sorbitol.  The additive which prevents syneresis due to contact between the dental cream and the polyolefin resin is a nonionic block copolymer containing moieties of polyoxyethylene and polyoxypropylene.
Patent CA-1303612-C (CA)
Title: Derivatives of quinolinecarboxylic acid
Inventor: KISE MASAHIRO
IPC: C07D513/04
Filed: 1988-11-07
Granted: 1992-06-16
Abstract: ABSTRACT     Quinolinecarboxylic acid derivatives of the formula (I)                 (I) and pharmaceutically acceptable salts thereof wherein R1 is hydrogen,  straight or branch chain lower alkyl or phenyl unsubstituted or substituted by one or more halo moieties; R2 is hydrogen or straight or branch chain lower alkyl; and   is a 5- or 6- membered ring wherein the nitrogen atom is the only heteroatom or where there is a second heteroatom selected from the group consisting of nitrogen, oxygen and sulfur, said 5- or 6- membered ring being unsubstituted or substituted by lower alkyl, amino or mono- or di- lower alkyl amino are useful for treating bacterial infections in humans and animals.
Patent CA-1299627-C (CA)
Title: Cooking oven
Inventor: SWANSON DAVID L
IPC: A21B2/00
Filed: 1988-11-24
Granted: 1992-04-28
Abstract: ABSTRACT     An  oven  that  cooks  foodstuffs  containing  water  at temperatures up to 600 degrees Fahrenheit with longwave radiation generated  by  masking  a  cooking  volume  from  radiant  heating elements by blackened rigid inserts, which absorb shortwave and longwave  radiation  from  the  heating  elements  and  uniformly reradiate  the  energy  into  the  cooking  volume  as  longwave radiation; non-condensing steam is injected into the oven until the  vapor pressure  of  the water  in the  foodstuff attains a pressure at. which water will migrate  to the  surface  of;; the foodstuff to be evaporated; air is then passed through the oven to remove water from the foodstuff, while cooking with longwave radiation continues.
Patent CA-1323643-C (CA)
Title: Method of forming zigzag-shaped piles from a continuous band of a flexible material and machine for carrying out this method
Inventor: MARTIAL GASTON M
IPC: B65H35/10
Filed: 1988-12-08
Granted: 1993-10-26
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a method and a machine for forming zigzag-shaped piles from an endless band of paper wherein the band is deposited and folded on an appropriate support and, at the end of the formation of a pile, a rupture of the band is provoked along a predetermined folding line, the first folding flap of the following pile to be formed is brought into a predetermined position, the forward movement of the band is stopped and the pile which has just been completed is removed, the traction force for rupturing the band being exerted during the forward motion of the same, by applying the band by one of its surfaces advantageously at the predetermined rupture line, against stationary means, by deviating the band downstream and upstream of its part under application, from its normal path, advantageously in a perpendicular direction with respect to the plane of the band, while guiding the band.
Patent CA-1303796-C (CA)
Title: Diaper
Inventor: LANNIGAN EVELYN
IPC: A61F13/62
Filed: 1989-02-24
Granted: 1992-06-23
Abstract: TITLE               DIAPER                         APPLICANT                      Evelyn Lannigan INVENTOR                      Evelyn LANNIGAN     ABSTRACT           The re-usable diaper consists of a pair of identically sized panels in the modified form of the letter "T" with opposite wings or tips that are integral and transverse to a longitudinal crotch portion terminating at a distal end.  The wings are provided with a pair of loop and hook fasteners on one panel, and the other panel carries a longitudinal fastener on one of the wings as well as at least one longitudinal fasteners oriented laterally to the longitudinal axis but near the distal end of the diaper. Preferably, the central crotchregion is a multi-ply material stitched between the two panels and central yet marginal elastic margins gather the crotch region tightly around the leg of an infant.
Patent CA-1301967-C (CA)
Title: Multi-task state machine signalling translator
Inventor: TYRRELL RAYMOND E
IPC: H04J3/12
Filed: 1989-03-02
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE      Real-time conversion between two different A/B signal coding schemes based on the DS1 time division multiplex format is achieved by time sharing a programmable state machine.  The time sharing is accomplished synchronously with the DS1 superframe such that each of the 24 DS1 channels have signalling translated once every superframe.  Programmability of the state machine is facilitated by the use of an EPROM.  A RAM is used for real-time storage of signal states, machine states and processor provisioning for each channel, thereby facilitating time sharing of the state machines.  Flexibility is provided through the unique use of an EPROM, which can be modified to directly change the signalling-translation response depending on the type of telephony service being provided and the coding scheme used for the signalling.  Processor provisioning of the RAM selects a service type translation for each of the 24 DS1 channels.