baber/WOPTO huggingface dataset:
Patent CA-2040423-A1 (CA)
Title: Fluorobenzene derivatives and liquid-crystalline medium
Inventor: REIFFENRATH VOLKER
IPC: C09K19/34
Filed: 1990-09-03
Abstract: Fluorobenzene derivatives of the formula I,   in which R is H, an alkyl or alkenyl radical of 1 to 15 carbon atoms which is unsubstituted or monosubstituted by CN or CF3 or at least monosubstituted by halogen, it being pos-sible for one or more CH2 groups in these radicals also to be replaced, in each case independently of one another, by -O-, -S-,  , -CO-, -CO-O-, -O-CO- or -O-CO-O- in such a manner that O atoms are not linked directly to one another, A1 and A2, in each case independently of one another, are a (a) trans-1,4-cyclohexylene radical, in which one or more non-adjacent CH2 groups can also be replaced by -O- and/or -S-, (b) 1,4-phenylene radical, in which one or two CH groups can also be replaced by N, (c) radical from the group comprising 1,4-cyclo-hexenylene, 1,4-bicyclo(2.2.2)octylene, piperidine-1,4-diyl, naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl and 1,2,3,4-tetrahydronaphthalene-2,6-diyl, it being possible for the radicals (a) and (b) to be substituted by CN or fluorine, Z1 and Z2, in each case independently of one another, are -CO-O-, -O-CO-, -CH2O-, -OCH2-, -CH2CH2-, -CH=CH-, -CC- (sic) or a single bond, one of the radicals Z1 and Z2 is also -(CH2)4- or -CH=CH-CH2CH2-, L is H or F, m is 0, 1 or 2, X is F or Cl, and Q is a single bond, -CF2-, -OCF2- or -OCHF-, with the proviso that L is F, if Q is a single bond, are suitable as components of liquid-crystalline media.
Patent CA-2044379-A1 (CA)
Title: Engine air shutdown valve
Inventor: KREPELA JOSEPH
IPC: F01L3/00
Filed: 1991-06-12
Abstract: ENGINE AIR SHUTDOWN VALVE    ABSTRACT OF THE DISCLOSURE              An engine air shutdown valve comprising a gate which is movable from a first position wherein the air flow passage of an engine is relatively unimpeded to a second position where the air flow passage is closed thereby terminating operation of the engine. A trip spindle maintains the gate in its open position with a ball release. Upon activation of the ball release, the gate moves parallel to the direction of air flow through the passage to terminate the air flow.     SPEBS/BAR8928. 1&2
Patent CA-2045432-A1 (CA)
Title: 2-phenanthrenyl-carbapenem antibacterial agents
Inventor: DININNO FRANK P
IPC: A61K31/535
Filed: 1991-06-25
Abstract: TITLE OF THE  INVENTION     ABSTRACT OF THE DISCLOSURE          Carbapenems of the formula   are useful antibacterial agents.
Patent CA-2046504-A1 (CA)
Title: Laser beam control for a ring-laser gyro
Inventor: KILLPATRICK JOSEPH
IPC: G01C19/66
Filed: 1991-07-09
Abstract: An RLG has a laser beam current control system which controls the current so as to produce a constant beam intensity, allowing the RLG to operate at a current level continuously matched to the operating conditions, thus extending the operating life of the RLG.
Patent CA-2047196-A1 (CA)
Inventor: WHITEHEAD MARK
IPC: G02F1/21
Filed: 1990-02-22
Abstract: An asymmetric Fabry-Perot modulator comprises a multiple quantum well (MQW) p-i-n diode (8, 10, 12) defined by a front surface of reflectivity 0.3 and back surface of reflectiv-ity 0.95. The cavity length L is such that reson-ance occurs close to the long wavelength side of the unbiased MQW absorption edge so that application of a bias signal to the MQW (12) causes the reflectivity of the cavity to become close to zero. This arrangement provides a high contrast modulator less sensitive to tem-perature variations and deviations from ideal reflectivities of the front and back surfaces than high-finesse Fabry-Perot modulators.
Patent CA-2049135-A1 (CA)
Inventor: FRANCIK CHARLES A
IPC: E04B1/28
Filed: 1991-08-13
Abstract: A translucent block includes a pair of parallel upper and lower surfaces each having a generally pentagonal shape.  There are a pair of generally rectangular, nonparallel side faces whose planes intersect to form a dihedral angle at 45°.  A generally rectangular first opposing end wall is joined to the upper and lower surfaces and is perpendicular therewith, and is joined to the side faces proximal to the vertex of the 45° dihedral angle.  A second opposing end wall is formed of two equal sections joined at an obtuse angle to each other.   The vertex of the obtuse angle points away from the first end wall, and the sections of the second end wall are parallel to and are joined to the upper and lower surfaces of the block and are joined to the nonparallel side surfaces of the block distal from the 45° dihedral angle.  The translucent block can be  joined  to  similar  translucent blocks  and/or different translucent blocks to form a wide variety of wall structures of 45° angles or combinations thereof, and into a column structure.  There is included methods of forming the wall structures and a method of forming a column structure.
Patent CA-2050276-A1 (CA)
Title: Improved primer extension reactions
Inventor: RICHARDSON CHARLES C
IPC: C12Q1/68
Filed: 1990-04-10
Abstract: A kit or solution for use in extension of an oligonucleotide primer having a first.single-stranded region on a template mole-cule having a second single-stranded region homologous to the first single-stranded region; comprising a first agent able to cause extension of the first single-stranded region of the primer on the second single-stranded region of the template in a reaction mix-ture, and a second agent able to reduce the amount of pyrophosphate in the reaction mixture below the amount produced during the extension in the absence of the second agent.
Patent CA-2050330-A1 (CA)
Title: Electro-therapy apparatus
Inventor: MATTHEWS TONY
IPC: A61N1/05
Filed: 1990-03-02
Abstract: There is disclosed electro-therapy apparatus comprising at least two electrodes (22, 23) adapted to feed oscillating current to selected sites on or beneath the epidermal or mucous surface remote from a treatment site, A common return electrode (24) is provided at the treatment site which is subjected to the sum of the currents from the two feed electrodes. The feed electrodes may be contact feed electrodes or, as shown, capacitative feed electrodes. The feed electrodes may operate at different frequencies so that the treatment site is stimulated by the beat frequency. This may be at or about 80 or 130 Hz, if an anaesthetising effect is required.
Patent CA-2050739-A1 (CA)
Title: Squalene synthetase inhibitors
Inventor: BERGSTROM JAMES D
IPC: C12P17/18
Filed: 1991-09-05
Abstract: TITLE OF THE INVENTION NOVEL SQUALENE SYNTHETASE INHIBITORS            ABSTRACT OF THE INVENTION         This invention relates to compounds of structural formula (I):       (I) which are squalene synthetase inhibitors and thus useful as cholesterol lowering agents.
Patent CA-2053845-A1 (CA)
Title: Mixing apparatus
Inventor: RICHARD BENNETT M
IPC: E21B43/04
Filed: 1991-10-23
Abstract: ABSTRACT OF THE DISCLOSURE    The apparatus allows mixing of a solid and a fluid con-tinuously to facilitate downhole operations, especially gravel packing.  The apparatus comprises a solids hopper, with pref-erably an internal auger, to meter the solids flowrate.  The solids drop into a second feeder which empties into a mixing chamber.  Liquid can be directed into an annular space formed in the mixing chamber around the periphery of the second auger, or could be piped into the second auger itself.   A triplex pump is connected to the mixing chamber and draws the mixed solid and fluid and pumps it to sufficient pressures for use in a wellbore.
Patent CA-2054273-A1 (CA)
Title: Proportional valve and pressure control system
Inventor: STUART JOHN M
IPC: G05D16/20
Filed: 1991-10-25
Abstract: PROPORTIONAL VALVE AND PRESSURE CONTROL SYSTEM                  Abstract of the Invention A pressure control system is disclosed for closely regulating the pressure level of a controlled volume.   The system comprises first and second sources, a throttled valve for controlling the flow rate of the fluid between each of the first and second pressure sources and the controlled volume, and a feedback control.          The throttled valve comprises a rotationally mounted cam, a housing for receiving the cam and including a chamber, a first port coupled to the  first pressure  source,  a  second port coupled to the controlled volume, and a third port coupled to the second pressure source.   The cam has first and second cam surface portions for defining corresponding first and second transfer functions of fluid flow through the first and second ports, respectively.  First and second metering needles are associated with the first and third ports respectively for throttling the fluid flows therethrough.          The  first and second metering needles are disposed to engage respectively  the  first  and  second  cam  surface portions.    A transducer is associated with the controlled volume for providing an output signal indicative of the pressure level therein.  A set point  indicative  of  the  desired  pressure  level  within  the controlled volume is entered into the feedback control,  which compares the entered set point with the measured pressure level to determine that desired angular position of the cam with respect to the housing which will provide a corresponding desired rate of fluid flow through the first and second ports.
Patent CA-2054311-A1 (CA)
Inventor: PATTON RICHARD A
IPC: C01B6/21
Filed: 1991-10-28
Abstract: Improved sodium borohydride powder compositions have a silica-based anticaking agent.  In a method wherein a mixture of sodium borohydride and an anti-caking agent are compacted under pressure, the process is improved, particularly in speed, by the use of a silica-based anti-caking agent.
Patent CA-2055107-A1 (CA)
Title: Process for the preparation of branched olefins
Inventor: BARRI SAMI A I
IPC: C07C11/02
Filed: 1991-11-07
Abstract: ABSTRACT OF THE DISCLOSURE          PROCESS FOR THE PREPARATION OF BRANCHED OLEFINS      A process for the production of olefins which comprises passing an oxygenate- containing feedstock over a zeo type catalyst at a temperature greater than 200°C, characterised in that the feedstock comprising an olefin and, as oxygenate, methanol, formaldehyde and/or dimethylether, the zeo type catalyst is of TON-type structure, and the feedstock includes added water.
Patent CA-2056228-A1 (CA)
Inventor: YOSHIOKA NARUO
IPC: H01H37/76
Filed: 1991-11-26
Abstract: A protective structure for a surge absorber which is composed of the surge absorber, connecting means for connecting the surge absorber to an electronic device and means for protecting the surge absorber as well as the electronic device from fire caused by a continuous over-voltage.  The surge absorber protecting means is composed of a first electroconductive spring member which does not deteriorate from heat generated by repeated transient surge voltages to which it might be subjected.  This spring member may be connected to a communication line and is movable between a first spring-loaded position wherein it connects the electronic device and the surge absorber to the communication line and a second non-spring loaded condition wherein the connection is broken.  Also included are release means for releasing the first member from its first spring-loaded position which release means is acti-vated by heat generated from a continuous overvoltage.
Patent CA-2057583-A1 (CA)
Title: Telescoping, extending guide rails for use with boat trailers
Inventor: DES ROCHES RONALD J
IPC: B62D63/08
Filed: 1991-12-13
Abstract: ABSTRACT OF THE DISCLOSURE    An adjustable boat trailerr guide rail assembly includes a pair of transverse slide assemblies,  a pair of upright slide assemblies and a longitudinal slide assembly.  A pair of guide rail assemblies are mounted to a boat support chassis to simplify the loading and unloading of boats to and from boat trailers.   The guide rail assemblies are adjustable in generally transverse, upright and longitudinal directions relative to the boat trailer chassis to ease the frequently difficult task of loading a boat onto  a trailer while  standing  on  slippery  surfaces,  a task frequently complicated by wind and turbulent waters.
Patent CA-2057844-A1 (CA)
Inventor: HEIFETZ MILTON
IPC: E06C1/26
Filed: 1991-12-17
Abstract: An effective riser reducer step device is provided, which consists of a mechanism placed upon a tread of a step of a staircase for reducing the height of a riser of the step.  Another mechanism is for moving the riser height reducing mechanism to the tread of each successive step of the staircase, so that a physically impaired person suffering from atrophy, back and leg problems can ascend and descend the steps of the staircase.
Patent CA-2058136-A1 (CA)
Title: Heat shielded exhaust system component
Inventor: KELLER MARTIN T
IPC: F01N13/14
Filed: 1991-12-19
Abstract: An exhaust muffler and heat shield assembly and a method for producing the assembly are provided.  The muffler includes a pair of stamp formed external shells.  At least one external shell is stamped to include a plurality of tabs extending outwardly from the peripheral flange of the external shell.  The tabs preferably are disposed at locations that otherwise would have defined wastage to be trimmed from the stamp formed external shell.   The heat shield is configured to be mounted to the muffler by crimping the tabs.  In particular, peripheral regions of the heat shield may be engaged between the peripheral flange of the muffler and the crimped tabs.   Alternatively, the heat shield may include slots through which the tabs extend for mechanical engagement with the heat shield.
Patent CA-2058900-A1 (CA)
Title: Plasmids for controlling expression in plants
Inventor: GATZ CHRISTIANE
IPC: C12N15/79
Filed: 1992-01-07
Abstract: Abstract Plasmids that comprise DNA sequences that permit the expression, controlled in respect of time and location. of a heterologous product in plants are described. The expression is not achieved until an inducer has been added.            The DNA sequences include a functional combination of plant expression sequences and bacterial control sequences.            Plants that comprise the DNA sequences of those plasmids are also described. Tetracycline is used as an inducer.
Patent CA-2061743-A1 (CA)
Inventor: STRICKLAND PETER C
IPC: H01Q11/08
Filed: 1992-02-24
Abstract: A device is provided for use in a helical antenna having an antenna element wound about the periphery of a dielectric support post, the post being in the form of a tube or cylinder. The device has an electrically conductive member electrically connected to one end of said antenna element. The conductive member is of any appropriate shape or configuration and is operable to increase the loading on the antenna whereby standing waves on the antenna element are reduced and a more uniform electrical current is produced along the antenna element.
Patent CA-2064126-A1 (CA)
Title: Compounds, named the "leustroducins", their preparation and their therapeutic uses
Inventor: KOHAMA TAKAFUMI
IPC: C07F9/655
Filed: 1992-03-26
Abstract: ABSTRACT OF THE DISCLOSURE     New compounds, which we have named the "Leustroducsins" have the formula (I):       (I) in which R represents a 5-methylhexanoyloxy group, a 6-methyloctanoyloxy group or a 7-methyloctanoyloxy group, and salts thereof, and may be prepared by fermentation using a microorganism of the genus Streptomyces, especially a strain of the species Streptomyces platensis. such as strain SANK 60191 (FERM BP-3288).  These compounds may be used for the treatment or prophylaxis of: adverse reactions resulting from cancer chemotherapy or radiotherapy; infections; cancer; cerebral dysfunction; and fungal infections.
Patent CA-2069596-A1 (CA)
Title: Microbiological process for the production of 5-hydroxypyrazinecarboxylic acid
Inventor: KIENER ANDREAS
IPC: C12P7/40
Filed: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE           A microbiological process is disclosed for the production of 5-hydroxypyrazinecarboxylic acid and/or its salts with microorganisms using nicotinic acid and/or its salts.
Patent CA-2069792-A1 (CA)
Title: A device for the automatic examination of blood samples
Inventor: KRATZER MICHAEL
IPC: G01N35/00
Filed: 1992-05-28
Abstract: The invention relates to an apparatus for the automatic analysis of blood samples, comprising a test station (1) in which blood is removed from a supply vessel (5) and is passed through an aperture (19) in a part (18) retained in an aperture holder (3). At least one testing head (7) is provided, and this is supplied in successive order with supply vessels (5) containing blood from a first magazine device (8) and with aperture holders (3) from another magazine device (2; 2'). After at least one measurement on each aperture holder (3) the used aperture holder (3) and the used supply vessel (5) are removed from the testing head (7) and the testing head (7) is cleaned by a cleaning device (26, 27). <IMAGE>
Patent CA-2069839-A1 (CA)
Title: Nonwoven, coated substrates and method of applying a coating at high bath concentration and low wet pick-up
Inventor: COLMAN CHARLES W
IPC: D04H1/64
Filed: 1992-05-28
Abstract: ABSTRACT OF THE DISCLOSURE        Nonwoven,  hydrophobic  fibrous  substrates  uniformly coated with a wetting agent are disclosed which have improved tensile strength properties over conventional coated, nonwoven substrates.  Also disclosed is a process for applying a high solids content wetting agent to a substrate in a manner which results in low wet pick-up and eliminates drying requirements. The  low wet pick-up  reduces  degradation  of  the tensile strength of the material normally resulting from with the wetting and drying of nonwoven substrates.  In one embodiment the untreated side remains hydrophobic producing a "one-way valve" effect.
Patent CA-2071084-A1 (CA)
Inventor: WRIGHT ROBERT D
IPC: A41B17/00
Filed: 1992-06-11
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed is a composite elastic material adapted to provide  improved  tenacity  in  one  direction  and  which includes (1) an anisotropic elastic fibrous web having at least one layer of elastomeric meltblown fibers and at least  one  layer  of  substantially  parallel  rows  of elastomeric filaments autogenously bonded to at least a portion of the elastomeric meltblown fibers, and (2) at least one gatherable layer joined at spaced apart locations to  the  anisotropic  elastic  fibrous  web  so  that  the gatherable  layer  is  gathered  between  the  spaced-apart locations.   The anisotropic elastic fibrous web has a strength index of at least about 2 or less than 0.5.  The substantially parallel rows of elastomeric filaments in the elastic fibrous web may have an average diameter ranging from about 40 to about 750 microns and constitute at least about 20 percent, by weight, of the anisotropic elastic fibrous web.
Patent CA-2071843-A1 (CA)
Inventor: PASSARELLI FRANK
IPC: G01G9/00
Filed: 1990-10-29
Abstract: Procédé et appareil de détermination de poids sur une structure, utilisant un transducteur (30) de transmission d'ondes acoustiques ainsi qu'un transducteur (32) de réception d'ondes acoustiques. Le temps écoulé de transmission des ondes acoustiques entre le transducteur de transmission et le transducteur de réception, varie selon la quantité de poids se trouvant sur l'élément porteur de charge, dans la structure sur laquelle les transducteurs sont montés de manière fixe. On peut déterminer le poids effectif de la structure par détermination du temps écoulé et par comparaison de celui-ci dans un ordinateur (58) à un poids connu par rapport à une courbe de temps écoulé.
Patent CA-2073163-A1 (CA)
Title: Original winnipeg or canadian backyard mosquito trap
Inventor: BIELA PAUL F
IPC: A01M1/08
Filed: 1992-07-06
Abstract: ABSTRACT In the world of multitudinous insect trapping devices, " The Original Winnipeg Backyard Mosquito Trap " or, " The Original Canadian Backyard Mosquito Trap " as it is also called, stands out amongst competition by offering an alternative means of trapping insects. By its unique principle of VACUUMING Mosquitoes, (and other-flying insects inclusive of Black Flies, Mushroom Flies, Canker Worm Moths, Cut Worm Moths -ad infinitum) the Trap will 'render harmless' untold numbers. Not a poison of any kind, and not a 'Zapper' either, the trap quietly dehydratesat the bottom of a fabric bag, many flying insects lured to the vicinity of the Trap by the light bulb/heat signature.
Patent CA-2076550-A1 (CA)
Title: Electrically neutral flow measurement system
Inventor: LUNZER LAWRENCE J
IPC: G01F3/10
Filed: 1991-12-17
Abstract: An electrical isolation system for monitoring liquid flow rate from pumping equipment (50) housed within a confined enclosure (40), wherein the flow rate signals (10) are developed into optical signals which are conveyed via fiber optic cables (24, 25) from within the enclosure to control modules outside the enclosure. The control for operating the system may thereby be wholly electrically isolated from the pumping equipment.
Patent CA-2081203-A1 (CA)
Title: Method for enriching fetal cells from maternal blood
Inventor: BERENSON RONALD J
IPC: C12Q1/24
Filed: 1991-04-23
Abstract: A method is provided for enriching fetal nucleated, erythroid cells from maternal blood comprising the steps of: (a) incubating a sample of maternal blood with an immobilized ligand capable of specifically binding to fetal nucleated, erythroid cells under conditions and for a time sufficient to allow specific binding of the ligand to the cells; (b) removing unbound blood products; and (c) incubating the bound cells in the presence of erythropoietin such that fetal cells are preferentially enriched.
Patent CA-2082600-A1 (CA)
Title: Invasive line separator
Inventor: CLARK DEBORAH K
IPC: A61M25/02
Filed: 1992-11-10
Abstract: INVASIVE LINE SEPARATOR                  ABSTRACT OF THE DISCLOSURE     An invasive line separator comprises first and second plates of translucent plastic, which are hinged together so that they fold against one another in a face-to-face configuration. The first plate has a plurality of spaced apart, parallel channels that are sized and configured to receive and engage respective sections of invasive line, so that when the lines are placed within the channels they lie beneath the planar surface of the plate. This allows the hinged second plate to be folded into abutment with and provide a cover for channels of the first plate,  without  constricting  invasive  lines  placed  in  the channels.  The  first plate also contains  one  or more  slots alongside  an  edge,  to  accommodate  straps  for securing  the separator to an adjacent structure, such as a bed rail. With the hinged plates folded together, any sections of invasive line that have been arranged within the grooves are securely retained in the first plate by second plate. On the side of the second plate opposite the side facing the channels in the first plate one or more surface regions may be configured to receive adhesive strips of labelling material for identifying each line. The labelling surface regions are arranged to be parallel with and overlie the channels in the first plate when the first and second plates are folded together.
Patent CA-2082680-A1 (CA)
Title: Cemented carbide body with increased wear resistance
Inventor: HARTZELL E TORBJOERN
IPC: E21B10/567
Filed: 1992-11-12
Abstract: Summary According to the invention there is now provided a cemented carbide button for rock drilling comprising a core and a sur-face zone surrounding the core whereby both the surface zone and the core contains WC (alpha-phase) and a binder phase based on at least one of cobalt, nickel or iron and that the core in addition contains eta-phase.  The invention is characterized in that the eta phase core extends to the very top working surface of the button and as result longer life and higher drilling rate are obtained particularly for rotary crushing drilling, cutting drilling and percussive drilling in soft rocks.         Fig. 2