baber/WOPTO huggingface dataset:
Patent CA-2003882-C (CA)
Inventor: SMITH EDWIN ROGERS
IPC: C08L23/08
Filed: 1989-11-24
Granted: 1997-01-07
Abstract: Biaxially stretched, heat shrinkable monolayer and multilayer films comprising very low density polyethylene terpolymers of monomers (a), (b) and (c), where (a) comprises ethylene, (b) comprises a C6-C8 alpha-olefin and (c) comprises 1-butene or 1-hexene, have a very good combination of physical properties and processability including high shrinkage values and puncture resistance.
Patent CA-2010642-C (CA)
Title: Adaptive wheel slip threshold
Inventor: WALENTY ALLEN J
IPC: B60T8/70
Filed: 1990-02-22
Granted: 1994-07-26
Abstract: ADAPTIVE WHEEL SLIP THRESHOLD            Abstract of the Disclosure A brake control system is described that maximizes vehicle braking efficiency by first determining, and then cycling wheel brake pressure and consequently wheel slip about, the critical slip value for the road surface.  As each road surface has unique tractive characteristics, the amount of brake pressure required to produce critical wheel slip, and hence maximum  brake force, varies for different coefficient of friction road surfaces.  This invention determines the coefficient of friction for the operating surface and adjusts the system slip threshold to accurately mimic the actual critical slip value for the road surface.  The invention then applies and releases wheel brake pressure so as to cycle wheel slip about this critical slip value.
Patent CA-2015181-C (CA)
Title: Method and apparatus for preventing erroneous operation in non-contact push-button switch
Inventor: UMEMURA HEIHACHIRO
IPC: H03K17/95
Filed: 1990-04-23
Granted: 1994-06-07
Abstract: ABSTRACT OF THE DISCLOSURE    A method and an apparatus for preventing erroneous operation in a non-contact push-button switch.    This method is to impress pulse power on a non-contact switch, to discriminate good or bad of the output signal from the switch and to give selectively an operation signal to a driving circuit.  Even if an operation output is given from the switch, while the push-button is in OFF state due to trouble of electronic parts constituting a non-contact push-button, no signal which means operation is given from the discrimination circuit and accordingly the OFF state is maintained and unreasonable working of the apparatus or other trouble does not take place.
Patent CA-2018500-C (CA)
Title: Toner metering apparatus
Inventor: ALDRICH CHARLES S
IPC: G03G15/08
Filed: 1990-06-07
Granted: 1995-12-05
Abstract: A developer apparatus for use in an electrostatic reproduction  apparatus  includes  a  large  reservoir  of toner.  The toner is located in a supply chamber and is metered to a developer roller chamber from which it is carried by a developer roller past a doctor blade to a photoconductor  drum  for  image  development.   A  toner metering roller  rotates with the developer  roller to provide a continuous  supply of toner from the  supply chamber to the developer chamber.  Once an equilibrium level  is  reached,  the  toner metering  roller  acts  to remove toner from the developer chamber to the supply chamber  to  insure  proper  operation  of  the  developer roller.
Patent CA-2019082-C (CA)
Title: Method of forming space section devoid of coupling elements in continuous slide fastener chain
Inventor: SANADA YUKIO
IPC: A44B19/58
Filed: 1990-06-15
Granted: 1996-01-30
Abstract: An improved method of forming space sections devoid of coupling elements disposed, with a predetermined distance, in a slide fastener chain which is composed of a pair of continuous rows of interengaged coupling elements. In the method of forming one space section in a one-cycle, the slide fastener chain is transported intermittently below an element-removing apparatus. According to the preferred embodiment, the element-removing apparatus includes a punch and downstream and upstream locating pins are provided at the both ends of the punch. These pins engage to two elements respectively, which are terminal end elements of a normal portion not to be the space section, for positioning a downstream side part and an upstream side part of a portion to be the space section respectively. The pins and the punch move vertically so as not to interfere with each other. The punch descends to cut the rows of the elements of the both parts of the portion separately. By carrying out this one-cycle repeatedly, the space sections can be formed repeatedly one by one in the slide fastener chain, with the predetermined distance, without forming a faulty element at the opposite adjacent sides of the space section.
Patent CA-2021295-C (CA)
Title: Polarity detector for subscriber lines
Inventor: OHNO KOHICHI
IPC: H04L7/08
Filed: 1990-07-16
Granted: 1994-09-13
Abstract: ABSTRACT      A polarity detector for subscriber lines in a data transmitting system which detects the polarity of 2-wire subscriber lines using 2BlQ codes.  A converter converts a quaternary 2BlQ code into binary code and outputs complementary binary data.  A frame synchronizing signal detector detects a binary code frame synchronizing signal in the complementary binary data and outputs a timing signal.          A pattern detector detects an all "1"s or "O"s state of the complementary binary data and the timing signal.  A selector circuit selects all complementary data having a single polarity in response to all "1"s or "O"s detected by the pattern detector.  Therefore, correct data is received by correctly detecting the polarity of the subscriber line.
Patent CA-2022456-C (CA)
Inventor: CHAGNOT BRUCE
IPC: F24F3/14
Filed: 1990-08-01
Granted: 2001-07-10
Abstract: heat recouperator having a rotary wheel heat exchanger uses a random matrix media comprising a plurality o~ small diameter heat-retentive fibrous material, which provides high thermal efficiency in exchanging heat between inlet and exhaust air streams.
Patent CA-2024181-C (CA)
Title: Method of treating chemical dependencies using sertraline
Inventor: BICK PETER A
IPC: A61P25/30
Filed: 1990-08-28
Granted: 1994-11-08
Abstract: Abstract Disclosed is a medicine for treating a chemical dependency in a mammal in need of such treatment.  The medicine contains an amount of the compound (IS-cis)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-N-methyl-l-naphthalenamine, also known by the generic name sertraline, or a pharmaceutically acceptable salt thereof, effective in reducing or alleviating such dependency, in admixture with a pharmaceutically acceptable carrier.
Patent CA-2025070-C (CA)
Title: Recombinant aprotinin variants genetically engineered process for the microbial preparation of homgeneously processed aprotinin variants and the therapeutic use thereof
Inventor: EBBERS JURGEN
IPC: C12N9/99
Filed: 1990-09-11
Granted: 2001-01-02
Abstract: An aprotinin with a deletion of the amino acid proline in position 2 or an addition of alanine-(-2)-glutamine-(-1). Such aprotinin is useful as an active ingredient in medicaments.
Patent CA-2030578-C (CA)
Title: Restricted intake compensation method for a two stage furnace
Inventor: LYNCH GREGORY A
IPC: F23N1/02
Filed: 1990-11-22
Granted: 1995-07-18
Abstract: The present invention discloses a method of compensating for a restricted intake in a two stage furnace.  The furnace includes low and high pressure switches for determining if sufficient air is present to support low and high combustion.  When the furnace operates at high combustion, the state of the high pressure switch is monitored to determine if the high pressure switch has changed state for a predetermined amount of time such as 15 seconds.  The inducer fan is switched to low when insufficient air for high combustion has been indicated for such a predetermined time.  If the state of the low pressure switch indicates that insufficient air is available for low combustion, then the inducer is turned on high.
Patent CA-2031463-C (CA)
Title: Heterocyclic substituted acylaminothiazoles, their preparation and pharmaceutical compositions containing them
Inventor: BRAS JEAN-PIERRE
IPC: C07D495/04
Filed: 1990-12-04
Granted: 2000-07-25
Abstract: Compounds of formula (see formula I) in which R1 represents H, an alkyl or a substituted alkyl, R2 represents H or alkyl and R3 represents an optionally substituted cycloalkyl or an optionally substituted aromatic group, which can be a phenyl or a heterocyclic group comprising one or more hetero-atoms chosen from O, S and N, or R2 and R3 considered together represent the group (see formula II) which is optionally substituted on the phenyl ring, and Z represents a heterocycle comprising one or more heteroatoms chosen from O, S and N, fused with an aromatic ring which can comprise a hetero-atom and can be substituted, the said heterocycle being optionally substituted on N, when it comprises such an atom, by an alkyl or a substituted alkyl group, and the salts of these compounds with acids or bases.        Use of these compounds as medicaments.
Patent CA-2038557-C (CA)
Inventor: NAKAO TETSUO
IPC: G07D3/02
Filed: 1991-03-19
Granted: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE       An apparatus for separating and counting coins comprising a pair of rail spaced from each other to define a coin slot and a closed-loop chain for stably moving coins of different diameters on the pair of rails. The two rails are inclined with respect to a horizontal plane so that the coins are supported thereon in an inclined manner. The coin slot increases incrementally from an upstream of the coin slot to a downstream of the coin slot. Each coin, which has a diameter larger than a first width of the coin slot at the upstream and smaller than a second width of the coin slot at the downstream and moves along the coin slot, falls from the pair of rails. A counting device is suitably provided near the coin slot so that, upon falling of the coin. a count is registered.
Patent CA-2044005-C (CA)
Title: Intelligent network interface circuit
Inventor: LUCAK MARK A
IPC: H04L29/08
Filed: 1991-06-06
Granted: 2002-03-19
Abstract: An interface circuit couples a host processor in an industrial control system to a local area communications network. It includes a protocol machine for receiving and transmitting messages on the network and an interface controller which is programmed to implement one or more protocols. As a message is received by the protocol machine, the interface controller anticipates a responsive message which it writes to the protocol machine even as the message is being received. If the message is received accurately, the responsive message is transmitted without delay.
Patent CA-2044622-C (CA)
Title: Spark plug with ring shaped ground electrode
Inventor: JOHNSON JAMES E
IPC: H01T13/46
Filed: 1990-10-13
Granted: 2000-12-26
Abstract: Abstract Spark plug for an internal combustion engine having a metal shell (20) enclosing a ceramic insulator (16) containing a conductive centre electrode (18) having a bottom end (58) exiting from the insulator. The bottom end of the centre electrode is spaced apart from a groud electrode ( 12) attached to the metal shell by at least one support member or mounting post (38) . The ground electrode is ring/open-ring shaped and its interior diameter ranges from equal to the exterior diameter of the centre electrode to a multiple of the size of the interior diameter of the centre electrode.            Fig. 1
Patent CA-2048572-C (CA)
Inventor: PRICE JACK E
IPC: F16B7/04
Filed: 1991-08-07
Granted: 1995-05-02
Abstract: A  connector  system  for  store  fixtures  comprising  an elongated connector which is extended through a tubular member in one component of the store fixture and which is yieldably received  by  a  tubular  member  in  a  second  component of  the fixture.
Patent CA-2051993-C (CA)
Title: Method of culturing mammalian respiratory epithelial cells
Inventor: BRIDGES MICHAEL A
IPC: C12M3/04
Filed: 1991-09-20
Granted: 2002-06-25
Abstract: A method of culturing respiratory epithelial cells in vitro on a fluid permeable collagen substrate derived from bovine chorionic membrane tissue. The epi-thelial cells are harvested from the nasal mucosa of a human donor using a minimally-invasive brushing technique.      The culture method includes the step of incubating the plated cells in a relatively undisturbed state such that a substantial amount of the plated cells adhere, flatten and begin to replicate on the substrate surface.
Patent CA-2052154-C (CA)
Title: Liquid purification systems and methods
Inventor: MANESS RONALD C
IPC: C02F1/52
Filed: 1991-09-24
Granted: 1997-04-29
Abstract: New systems for the purification of liquids containing suspended solids and/or dissolved solid materials basically include a conical flocculator unit and a conjoined conical clarifier unit. The flocculator has a cylindrical lower portion, frustum middle portion and large diameter cylindrical top portion while the clarifier is essentially a large diameter cylindrical top portion over a lower frustum portion. Water or other liquid to be purified enters the flocculator lower portion via opposed, unequally sized nozzles to assume a helical flow upward past a series of deflector plates positioned at the top of the lower flocculator portion while a sludge blanket forms therein. A double flume plus slot arrangement located at the junction of the flocculator with the clarifier separates solids from liquid as fluid flow from the flocculator passes into the clarifier where it is subjected to further separation of sludge from clarified liquid with part of the sludge being recycled to the flocculator. New purification methods operated with the new systems are also disclosed.
Patent CA-2053748-C (CA)
Title: Pll frequency synthesizer capable of changing an output frequency at a high speed
Inventor: NORIMATSU HIDEHIKO
IPC: H03L7/183
Filed: 1991-10-18
Granted: 1995-02-07
Abstract: In a frequency synthesizer, a first pulse removing circuit (31) is connected between a reference signal generator (21) and a phase-frequency comparator (24).  A second pulse removing circuit (32) is connected between a variable frequency divider (23) and the phase-frequency comparator.  Responsive to first removing data indicative of a first pulse number, the first pulse removing circuit removes pulses from the reference signal that are equal in number to the first pulse number for a first predetermined cycle to produce a first pulse removed signal.  Responsive to second removing data indicative of a second pulse number, the second pulse removing circuit removes pulses from the divided signal that are equal in number to the second pulse number for a second predetermined cycle to produce a second pulse removed signal.  Responsive to a current command, a current controlling circuit may control current supplied from/to a charge pump circuit (25).  A control circuit may be connected between the phase-frequency comparator and the charge pump circuit.  A switch may be inserted between the loop filter and the voltage controlled oscillator.  When the switch switches off a PLL, a D/A converter supplies a control voltage to the voltage controlled oscillator and a filter capacitor of the loop filter.  The charge pump circuit may comprise a control circuit, a constant current circuit, an integrating circuit, and a sample and hold circuit.
Patent CA-2057206-C (CA)
Title: Microphone mounting for a person's neck
Inventor: FRIELINGSDORF FRANK
IPC: H04R1/00
Filed: 1991-12-06
Granted: 1996-09-17
Abstract: A mounting for a microphone includes a plate with an opening the plate being shaped and arranged so that it holds a microphone secured in said opening with the microphone contacting a person's neck.  In this position the microphone can pick up sounds pro-duced by the person through bone conduction.
Patent CA-2063176-C (CA)
Title: Process for the preparation of glutarylacylase in large quantities
Inventor: KOLLER KLAUS-PETER
IPC: C12N15/09
Filed: 1992-03-17
Granted: 2004-06-01
Abstract: Abstract of the disclosure A process for the preparation of glutarylacylase in large quantities The gene encoding glutarylacylase (GA) contained in the plasmid pCM 145 (DSM 6409) permits the expression of GA in E. coli in high yields.
Patent CA-2077789-C (CA)
Inventor: CUPO ALBERT
IPC: G01N1/30
Filed: 1992-09-09
Granted: 1997-09-09
Abstract: Methods for characterizing and distinguishing reticulocytes and mature red blood cells use reagent compositions which include an organic cationic dye for staining the reticulocytes in the blood sample and a buffer solution for maintaining a pH of about 6 to about 9.  The dyes may be the red excitable fluorescent dye Oxazine 750, or the blue excitable fluorescent dyes Acridine Orange or derivatives of Acridine Orange.  When a zwitterionic surfactant is included in the reagent composition for isovolumetric sphering of the reticulocytes and erythrocytes, and the reagent composition and whole blood sample mixture is passed through the sensing region of a flow cytometer, the light scattered through at least one angular interval and that fluoresced by each cell is measured, the erythrocytes can be distinguished from reticulocytes and the volume, hemoglobin concentration and the hemoglobin content of each reticulocyte or erythrooyte, and the mean cell volume, mean corpuscular hemoglobin concentration, and mean cell hemoglobin of the reticulocytes and/or erythrocytes are calculated from the measured cell-by-call volume and hemoglobin concentration.
Patent CA-2079535-C (CA)
Title: Poly hydroxybutyrate/hydroxy-valerate based hot melt adhesive
Inventor: RAYKOVITZ GARY
IPC: C09J167/00
Filed: 1992-09-30
Granted: 1998-03-31
Abstract: Hot melt adhesive compositions are prepared from 20 to 90% by weight of a linearpolyester of 3-hydroxybutyric and 3-hydroxyvaleric acids containing 9 to 35% of the hydroxyvalerate component; 10 to 80% by weight of a polar tackifier having a Ring and Ball softening point (as described by ASTM E-26) greater than about 60°C; 0 to 50% by weight of a plasticizer; 0 to 30% by weight of a wax diluent and 0-3% by weight of a stabilizer; 0-20% of a compatible polymer.  But utilizing a naturally occurring, thermoplastic, biodegradable copolymer as the base polymer, these adhesives advance the state of the art of hot melt adhesives by alleviating the dependence on petroleum based materials and by allowing for the development of hot melt adhesives which either degrade naturally after coming in contact with the soil or which can be composted.
Patent CA-2084820-C (CA)
Title: Buried heterostructure lasers using mocvd growth over patterned substrates
Inventor: HOBSON WILLIAM SCOTT
IPC: H01S5/227
Filed: 1992-12-08
Granted: 1997-12-09
Abstract: This invention pertains to buried heterostructure lasers which have been fabricated using a single step MOCVD growth of an MQW laser structure over a pattern etched GaAs substrate.  The wet chemical etching of grooves having a dovetailed cross-section and being parallel to the [011] direction in GaAs substrates produced reentrant mesas which resulted in isolated laser active regions buried by the AlGaAs cladding layer.  The 250 µm long uncoated lasers emit at about 1 µm. Lasers with coated facets have threshold currents of 20 mA and emit >100 mW per facet under room temperature operation.  The external differential quantum efficiency for currents of from 30 mA to about 50 mA is found to be nearly independent of temperature in the range of 10°C to 90°C suggesting a low temperature dependence of leakage current.
Patent CA-2087583-C (CA)
Inventor: SPEASE ARTHUR L
IPC: F16L33/28
Filed: 1993-01-19
Granted: 1996-07-09
Abstract: A  motion  transmitting  remote  control assembly (10) of the type for transmitting motion in a curved path by a flexible motion transmitting core element (20).   A conduit (12)  comprises an outer  jacket  (14),  an  inner  sheath  (16),  and support  wires  (18)  disposed  therebetween.    A flexible motion transmitting core element (20) is slidably disposed within the inner sheath (16).  A conduit  anchor device  securely  clamps  opposing surfaces on the support wires (18) between an inner ferrule (26) and an outer ferrule (24) to anchor the conduit (12) against loads placed thereon.
Patent CA-2087676-C (CA)
Title: Display or storage unit
Inventor: DARDASHTI SHAHRIAR
IPC: G11B33/04
Filed: 1993-01-20
Granted: 1996-01-02
Abstract: A display or storage unit used to hold compact or laser disc cases, video or audio tapes or cassettes, or the like. The unit may be made from a number of modular units attached to each other.  Each modular unit has a number of openings used to hold cases, tapes or cassettes.  The openings may be angled to facilitate holding the cases, tapes, or cassettes in place.  Apertures are provided in side portions, back por-tions, and top or bottom plates of the modular units, which allow the modular units to be attached to each other in order to build different configurations for the display or storage unit, or to be hung on a supporting structure such as a wall. Upright units formed by the modular units may be mounted on bases using bolts to fasten bottom plates of the units to the bases.
Patent CA-2089884-C (CA)
Inventor: FRAUGHTON EDWARD J
IPC: G01S5/00
Filed: 1991-08-13
Granted: 1999-12-14
Abstract: Système de poursuite de véhicules et anti-collision. Le système permet de contrôler les positions d'une pluralité de véhicules (3-, 32) sur terre, sur mer, dans les airs ou dans l'espace. Chaque véhicule (30, 32) détermine sa propre position à l'aide d'un système (100) existant de détermination de position tel que LORAN ou GPS. Chaque véhicule (30, 32) émet sa position, des informations d'identification ainsi que d'autres messages sur une base régulière sans aucun signal d'interrogation. Les informations de position et d'identification émises peuvent être reçues par un autre véhicule, et comme chaque véhicule (30, 32) a déterminé sa propre position, on peut utiliser lesdites informations afin de déterminer la proximité et l'identité d'autres véhicules, et si les véhicules se trouvent sur une trajectoire de collision. De préférence, la position de tous les véhicules (30, 32) se trouvant à l'intérieur d'un rayon d'action prédéterminé (36) d'un véhicule (30) est représentée sur un affichage afin de donner au pilote du véhicule une indication visuelle du traffic entourant son propre véhicule (30).
Patent CA-2094489-C (CA)
Inventor: GREGORY JAMES L
IPC: B65D41/04
Filed: 1993-04-20
Granted: 2004-08-03
Abstract: A plastic container closure package with a linerless sealing closure system comprising a plastic container having a threaded finish for receiving a closure having a base wall and an internal skirt with complementary threads on the skirt. The plastic container is made by a process wherein a tube of molten plastic is inflated and blown to form the container and thereafter the tube is trimmed to form the sealing surface of the finish of the container. The closure includes an annular flange that extends downwardly from the underside of the base wall of the closure and radially inwardly of the closure for engagement with the container. The annular flange includes a smooth continuous frustoconical surface that faces the finish of the container and engages the inner edge at the juncture of the top surface and inside surface of the finish of the container. An annular stop extends axially from the underside of the base wall of the closure to limit the flexing of the annular flange.      The width of the flange is such that the free end thereof normally extends beyond the inner edge of the finish into sealing this engagement intermediate the free edge and the end of the flange.