baber/WOPTO huggingface dataset:
Patent CA-1327044-C (CA)
Title: Silylation method
Inventor: RICH JONATHAN D
IPC: C07F7/18
Filed: 1988-06-23
Granted: 1994-02-15
Abstract: SILYLATION METHOD                  ABSTRACT OF THE DISCLOSURE             A method is provided for silylating aromatic acylhalide by effecting reaction between an aromatic acylhalide and halogenated polysilane in the presence of an effective amount of a silicon supported transition methal catalyst.  These supported transition metal complexes have been found to be recyclable and regenerable at the termination of the reaction.
Patent CA-1299316-C (CA)
Inventor: MIYABAYASHI SHIGEAKI
IPC: B08B3/04
Filed: 1988-07-13
Granted: 1992-04-21
Abstract: One-can Heat-curable Resin Compositions and Precoated Metal Abstract of Disclosure A one-can heat-curable resin composition which comprises: (1) a polyester polyol having at least three functional groups; (2) an adduct of an epoxy resin having at least one secondary hydroxyl group with a lactone compound or an alkylene oxide; and (3) a blocked organic polyisocyanate or a product of blocking of a prepolymer having terminal NCO groups obtained by reacting an organic polyisocyanate and an active hydrogen-containing compound, gives a tough and durable coat film showing no yellowing or thermal degradation due to heating at all.     Furthermore, said film has a high hardness and is excellent in processability and staining resistance, particularly in mustard staining resistance.  In particular, the composition, when used in the production of precoated metal, gives good coated steel sheets, which can be advantageously used in manufacturing household electric appliances and so on.
Patent CA-1283822-C (CA)
Title: Portable stove
Inventor: ROBINSON KEN
IPC: F24B1/02
Filed: 1988-07-28
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE             A pack stove comprises a rectangular stove body formed by upper and lower stove portions each having a flat rectangular  base  and  three  upstanding  side  walls.    The sidewalls of the upper stove portion have a plurality of tabs on  the  inner  surface  each defining  a  slot  with  the  inner surface  of  the  sidewall  so  that  the  upper  edges  of  the sidewalls of the lower portion are seated within the slots to hold the stove portions apart.     A front plate carries the loading door and a controlled air inlet and is attached to fill the open fourth side of the stove container by flanges around the periphery of the front portion.  The legs of the stove are seated within sleeve members welded into the interior of the underside.  The stove can be collapsed into one or two seperate containers for transporting equipment.   The stove construction is rugged and resistant to damage in vigorous handling.
Patent CA-1308373-C (CA)
Inventor: TOGNONI ANGELO
IPC: C12N15/55
Filed: 1988-07-29
Granted: 1992-10-06
Abstract: CLONING OF THE GENE CODING THE ISOAMYLASE   ENZYME AND ITS USE IN THE PRODUCTION    OF SAID ENZYME OR THE LIKE               Abstract of the Disclosure A fragment of DNA obtained from a bacterium of the genus Pseudomonas containing the coding gene for the isoamylase enzyme is novel.   Also novel are replicable recombinant DNA molecules for expression in host micro-organisms containing the aforementioned DNA fragment or coding regions thereof for mature isoamylase or for a polypeptide having biological activity equivalent to that of isoamylase.  Also novel are host micro-organisms trans-formed by the aforementioned molecules of recombinant DNA capable  of  expressing  and/or  secreting  the  mature isoamylase enzyme or a polypeptide having a biological activity equivalent to that of isoamylase.  The resulting isoamylase is specified in terms of amino acid sequence, structure and biological activity.
Patent CA-1302754-C (CA)
Title: Kit for converting a standard microscope into, and design for, a single aperture confocal scanning epi-illumination microscope
Inventor: LICHTMAN JEFFREY W
IPC: G02B21/00
Filed: 1988-09-22
Granted: 1992-06-09
Abstract: KIT FOR CONVERTING A STANDARD MICROSCOPE INTO, AND DESIGN FOR, A SINGLE APERTURE CONFOCAL   SCANNING EPI-ILLUMINATION MICROSCOPE          Abstract of the Disclosure A microscope design for, and a kit to con-vert a standard epi-illumination microscope into a single aperture confocal scanning epi-illumination microscope comprises an assembly including, in one embodiment, a pair of intermediate lenses to create a second field plane conjugate to the specimen plane in both the incident and reflected light paths, with a single aperture positioned at this second conjugate field plane and controllably scanned through the plane to create the incident light beam as well as to mask the returning light before viewing.  In a second embodiment, only a single lens is included in the assembly and the objective lens may be positioned at its correct tube length, or a non-standard objective lens may be used to prevent undesired degradation of the image.  This assembly conveniently mounts to the nosepiece of the standard microscope in place of the objective lens, and the objective lens mounts to the assembly.
Patent CA-1340716-C (CA)
Inventor: JEFFERS GALE
IPC: A01N63/02
Filed: 1988-09-28
Granted: 1999-08-24
Abstract: Inhibition of eucaryotic pathogens and neoplasms and stimulation of lymphocytes and fibroblasts with lytic peptides such as cecropins and sarcotoxins. Eucaryotic cells are contacted with cecropin or sarcotoxin, or a synergistic combination of cecropins or sarcotoxin with lysozyme, in an amount effective to lyse or inhibit the cells. Target cells include eucaryotic microorganisms such as protozoa, e.g. T. cruzi and P. falciparum, mammalian lymphomas and leukemias, and cells infected with intracellular pathogens such as viruses, bacteria and protozoa. Also disclosed is a method for stimulating proliferation of lymphocytes and fibroblasts by contacting such cells with an effective amount of cecropin or sarcotoxin. The methods may be in vitro or in vivo.
Patent CA-1338758-C (CA)
Inventor: MAYR ANTON
IPC: C12N7/06
Filed: 1988-10-14
Granted: 1996-12-03
Abstract: Inducers of non-specific immunity are obtained by increasing the pH of a virus suspension of viruses which elicit non-specific immunity and then heating the pH-increased virus suspension.  The pH value can be increased to between about 8 and 11 and heating is carried at temperature between about 50-60°C.
Patent CA-1278884-C (CA)
Title: Semiconductor device based on charge emission from a quantum well
Inventor: KASTALSKY ALEXANDER
IPC: H01L29/45
Filed: 1988-10-18
Granted: 1991-01-08
Abstract: Abstract of the Disclosure A semiconductor device implemented on a substrate which includes a first layer of semiconductor material of a first conductivity type composed of a semiconductor material and forming a first active region of said device; and a second layer of semiconductor material of a first conductivity type composed of a relatively wide energy bandgap material disposed on the first layer and forming a second active region of the device. A third layer of semiconductor material is provided composed of a relatively narrow energy bandgap material disposed on the second layer and having an energy band step such that carriers are confined in that layer. A fourth layer of semiconductor material of a first conductivity type is further provided composed of a relatively wide energy bandgap material disposed on the third layer and forming a third active region of the device. The resulting structure provides a new type of transistor action that combines the properties of both bipolar and field effect transistors is a three terminal electronic device.
Patent CA-1330677-C (CA)
Title: Storable adhesive containing post-chlorinated pvc
Inventor: DIERDORF HANS-ROLF
IPC: C08K13/02
Filed: 1988-11-09
Granted: 1994-07-12
Abstract: ABSTRACT    A storage stable adhesive for PVC plastics, particularly post-chlorinated PVC plastics, containing a basic mixture of 5 to 30% by weight post-chlorinated PVC and 95 to 70% by weight of an organic solvent, a stabilizer combination of effective quantities of organotin compounds and alkali metal carbonates from the group consisting of ammonium, lithium, sodium and potassium carbonates and also standard additives, such as impact modifiers, antioxidants and W stabilizers can be included  in the basic mixture.   The composition has improved stability when sotred in tin plated steel containers.
Patent CA-1328318-C (CA)
Title: Apparatus and method for providing a gray scale capability in a liquid crystal display unit
Inventor: BERNOT ANTHONY J
IPC: G09G3/18
Filed: 1988-11-10
Granted: 1994-04-05
Abstract: ABSTRACT    A  liquid  crystal  display  is  described  that includes gray scale capability.   Each pixel of the display is subdivided into a plurality of subpixels.          Each subpixel includes an effective capacitor, with the  liquid  crystal  material  contained  between  the effective capacitor  plates,  and  includes a control capacitor  coupled  in  series  with  the  effective capacitor.   By  controlling  the  capacitance  of  the control  capacitors  of  the  subpixels,  selected subpixels  can  be  activated  as  a  function  of  the voltage applied across the capacitor.  By controlling the number of  subpixels that are activated by  the applied  voltage,  a  gray  scale  capability  can  be provided for a liquid crystal display.
Patent CA-1327960-C (CA)
Inventor: RABL ARI
IPC: F24C15/22
Filed: 1988-11-22
Granted: 1994-03-22
Abstract: An infrared radiation emitter apparatus comprises a plane source (2) of infrared rays and a reflector (3a, 3b). 
<??>In order to avoid the problem due to captive rays and to multiple reflections, the cross-section of each half-reflector (3a, 3b) located to one side of the plane of symmetry P has the shape of an elliptical arc (E) whose two foci are respectively formed by the first end (2a) of the plane source (2) and the first end (4a) of the target (4) which are both situated on the other side of the plane of symmetry, this elliptical arc (E) extending between the second end (2b) of the plane source (2) and the point of intersection of the ellipse (E) with the direct ray (R1) going from the first end (2a) of the plane source to the second end (4b) of the target. 
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Patent CA-1330876-C (CA)
Inventor: WIGGLESWORTH PAUL
IPC: B01F5/10
Filed: 1988-12-09
Granted: 1994-07-26
Abstract: APPARATUS FOR MAKING  A POST-FOAMING GEL               ABSTRACT OF THE DISCLOSURE          An apparatus for making a post-foaming gel comprising, a device for pumping a gel base, a device for measuring the flow rate of the pumped gel base, a device responsive to the measuring device for pumping a foaming agent at a flow rate in a predetermined ratio to the flow rate of the gel base, a device for introducing the foaming agent to the gel base, and a device for forming the gel or emulsion from the introducing device.
Patent CA-1294707-C (CA)
Title: Wind shear detection system
Inventor: MULLER HANS R
IPC: B64D45/00
Filed: 1989-01-06
Granted: 1992-01-21
Abstract: WIND SHEAR DETECTION SYSTEM Abstract of the Disclosure A wind shear detection system compares air-speed with a composite signal derived from signals representative of longitudinal acceleration, normal acceleration, angle of attack and flight path angle to generate a shear signal.  An enhanced version of the system is also compensated for roll angle, radio altitude and flap position.  In a modified system, the accelerations are calculated along the velocity vector of the aircraft rather than along the horizontal axis to compensate for inaccuracies that could occur under extreme flight conditions such as high bank angle turns and dynamic maneuvers.
Patent CA-1328356-C (CA)
Title: Method and arrangement for pumping preferably refrigerants
Inventor: HMAN JAN-OLAV L
IPC: F25B/
Filed: 1989-01-27
Granted: 1994-04-12
Abstract: ABSTRACT        The invention relates to a method and to an arrangement for enabling refrigerants, preferably freons, to be emptied from refrigeration systems or heat pump systems with the aid of piston compressor pumps     when repairing or scrapping such systems. According to the invention, the compressor suction line     nearest the compressor is connected to one chamber of a heat exchanger and a pressure reduction value     is connected in the suction line upstream of the heat exchanger. The pressure line extending from the compressor pump     passes to an oil separator     and from there to the other chamber of the heat exchanger    . The fall in pressure in the re-duction valve     and heating of the refrigerant in the heat exchanger     means that the refrigerant will be in a gaseous state when reaching the compressor, which is a prerequisite for safe action of the compressor. The pressure increase achieved in the compressor pump     and cooling of the refrigerant in the heat exchanger     en-ables the refrigerant to be delivered to a container in preferably a liquid state.
Patent CA-1322301-C (CA)
Inventor: SPENCER CHARLES P
IPC: B61F5/12
Filed: 1989-02-03
Granted: 1993-09-21
Abstract: ABSTRACT     A friction shoe for use in a railway freight car truck.  The friction shoe consists of a cast metal body having a generally flat vertical surface adapted to abut a column on the truck side frame and sloped surfaces adapted to abut a corresponding sloped surface of the truck bolster.          Resilient, elastomeric pads are adapted to be received on each sloped surface of the friction shoe.  The sloped surface of the friction shoe has either a slot or a protrusion running lengthwise parallel to an outer edge of the sloped surface, and the elastomeric pad has either a corresponding protrusion or slot adapted to fit in the complementary sloped surface.  The elastomeric pad may be wedge shaped tapering in reduced thickness from its bottom edge toward its top edge, or the pad may comprise two components each of which tapers from its top edge toward its bottom edge with a complementary adapted sloped surface on the friction shoe.
Patent CA-1308732-C (CA)
Inventor: SEAGER JOHN F
IPC: C07C323/27
Filed: 1989-02-07
Granted: 1992-10-13
Abstract: A B S T R A C T            This invention relates to a process for the preparation of a compound containing an -NHC(=CHNO2)NHCH3.  The process comprises reacting an N-methyl derviative of the general formula (II):                                        (II) wherein R1 is a C1-4 alkyl group, with a suitable amine.         The resulting compounds are useful histamine H2-antagonists.
Patent CA-1330589-C (CA)
Inventor: GALUMBECK ALAN D
IPC: H04N7/08
Filed: 1989-02-15
Granted: 1994-07-05
Abstract: ABSTRACT         A communications system having programmable, addressable receivers that receive, store, process and send digital and conventional video, audio and control signals for use in, among other things, a cable video network.  Receivers in this system may receive conventional audio and composite video and digital data signals from sources such as a satellite transponder and video and audio from local sources.  The digital data may be processed into textual video data by character generation techniques, as may be other digital data received from a local keyboard, local weather sensors or other digital data communications interfaces.  The receivers may be addressed in units or groups for purposes of receiving individually, locally or regionally tailored text information and are typically controlled simultaneously from one control source.  The receivers may also be addressed and controlled in classes that do not correspond to such hierarchical structure.  The system of the preferred embodiment is particularly well adapted for a weather cable network, since it fulfills the needs of data consumers throughout a large geographic area to have continual, current local and national weather information.
Patent CA-1337485-C (CA)
Title: Removing haze from dewaxed hydrocarbon oil mixture boiling in the lubricating oil range
Inventor: RYAN DOUGLAS GILES
IPC: C10G73/02
Filed: 1989-02-21
Granted: 1995-10-31
Abstract: For removing  haze from  dewaxed  hydrocarbon oil mixture boiling in the lubricating oil range  which is hazy,  the  hazy  oil mixture  is  filtered  in  the filtration stage  (201) of  a dewaxing  plant which  is concurrently  filtering   undewaxed   hydrocarbon   oil mixture boiling in the lubricating oil range.  Prior to filtering, the hazy dewaxed oil mixture is subjected to pretreatment (in  pretreatment stage  204) such  as  to promote removal of  haze from the  dewaxed oil  mixture during filtering.   This  pretreatment is  carried  out independently of  the  undewaxed oil  mixture  and  can involve dilution/chilling  with  an oil  solvent  (e.g. liquid propane)  and/or  introduction of  free  excess electric charge, for example  by charge injection.   As an alternative  to  the pretreatment,  the  temperature conditions under which  filtration takes  place may  be low enough to promote wax crystallization.  The filtra-tion stage may comprise a  rotary drum filter (213)  in which the undewaxed oil mixture is introduced into  the filter vat  (10), whereas  the pretreated  dewaxed  oil mixture is  sprayed onto  the wax  cake formed  on  the rotary filter drum.
Patent CA-1338212-C (CA)
Title: Detachable cargo carrier
Inventor: WILEY MICHAEL D
IPC: B60R9/06
Filed: 1989-03-21
Granted: 1996-04-02
Abstract: A  cargo  carrier  is  detachably  engageable  with  a standard trailer hitch.  The carrier is connected solely to the hitch, rather than to any portion of a vehicle body or bumper. A hitch tongue engaging portion is insertably engageable with the trailer hitch tongue,  and a platform is attached to the engaging portion.   The carrier is retained on the vehicle by the passage of a lockable clevis pin through registering holes in the tongue portion and the engaging portion.   The carrier has the advantages of straightforward construction and tool-free attachment to the vehicle.
Patent CA-1310738-C (CA)
Title: Dispositif anti-rebond pour eviter les chocs multiples d'une masse mobile apres un premier choc contre un autre element
Inventor: MEYNIER PATRICK
IPC: G01V1/02
Filed: 1989-05-11
Granted: 1992-11-24
Abstract: Dispositif anti-rebond pour éviter les chocs multiples d'une masse en mouvement après un premier choc contre un autre élément. Des moyens magnétiques sont associés à l'élément afin d'exercer sur la masse une force d'attraction suffisante pour empêcher un éventuel rebond. Ces moyens comportent par exemple des électro-aimants et des circuits pour les connecter à une source de courant par l'interemédiaire d'un commutateur. On peut leur combiner aussi des aimants permanents. Le sens du courant électrique est choisi alors pour que les forces électro-magnétiques développées s'ajoutent aux forces d'attraction des aimants permanents ou bien pour annuler celles-ci, ce qui permet un dégagement de la masse. L'invention trouve une application dans la prospection sismique utilisant les sources à percussion.
Patent CA-1329162-C (CA)
Title: Process for inducing cytochrome p-450 enzymes in streptomyces bacteria and determining the mutagenicity of chemicals
Inventor: BUCHHOLZ STEVEN E
IPC: C12Q1/10
Filed: 1989-06-16
Granted: 1994-05-03
Abstract: TITLE Process for Inducing Cytochrome P-450 Enzymes in Streptomyces Bacteria and Determining the Mutagenicity of Chemicals ABSTRACT          A process for inducing cytochrome P-450 enzyme production in bacteria of the genus Streptomyces using inducers such as soybean flour, genistein or genistin is described.  Uses for the cytochrome P-450 enzymes produced are also discussed as is a process for using genetically engineered Streptomyces to determine the mutagenicity of chemicals.
Patent CA-1339567-C (CA)
Inventor: HILDERS HENDRICUS GERARDUS
IPC: B32B5/12
Filed: 1989-08-14
Granted: 1997-12-02
Abstract: Flat sandwich-shaped body having two skin layers and at least one core layer, whereby the skin layers are each provided with at least two, substantially parallel layers of substantially parallel fibres, whereby the fibres of the one layer cross those of the other layer at an angle between 25° - 155°, and whereby the fibres of the one layer are jointed with the fibres of the other layer, by means of a jointing material, at the location of the crossing points, whilst each layer of substantially parallel fibres is provided with an impregnating medium.
Patent CA-1319261-C (CA)
Inventor: CURT VALERIAN
IPC: E02D5/20
Filed: 1989-08-21
Granted: 1993-06-22
Abstract: Une structure cellulaire de soutien d'un remblai comprenant une structure de parement verticale incluant généralement un treillis relié à une structure d'encastrement. La structure d'encastrement se prolonge à partir de la structure de parement dans le remblai. Sous une première forme, la structure d'encastrement prend la forme de deux sections de treillis montées de façon verticale aux rebords verticaux de la structure de parement et se prolongeant généralement de façon parallèle dans le remblai. La structure d'encastrement peut également être constituée d'au moins un étrier en forme de "U" connecté à chacune de ses extrémités libres à un rebord vertical respectif de la structure de parement. Dans ce cas, l'étrier se prolonge de façon généralement horizontale dans le remblai. La structure de parement peut être maçonnée de plusieurs façons afin de réaliser des finitions différentes. La structure cellulaire peut également comprendre un coffrage perdu entre le remblai et la structure de parement. La stucture cellulaire peut donc être remblayée à l'aide de pierres de plus ou moins grandes dimensions ainsi qu'à l'aide de terre. L'utilisation d'une géotextile permet à la végétation de croître au travers de la structure de parement.
Patent CA-1339648-C (CA)
Inventor: IWAMOTO MUNE
IPC: C08F279/04
Filed: 1989-08-23
Granted: 1998-01-27
Abstract: The present invention relates to rubber-modified styrene copolymer prepared by polymerizing a styrene monomer and an acrylonitrile monomer in the presence of a rubbery polymer which contains about 2 - 30 wt % of styrene monomer, and contains a copolymer of styrene and acrylonitrile in a grafted or occluded form having an occlusion and graft index of 25 - 150%, that exhibits excellent rigidity, impact strength, external appearance and fluidity, while retaining rigidity, impact properties and external appearance, and when prepared by copolymerizing a maleimide monomer, has high heat resistance and therefore is suitable for materials for components of electric equipments, electronic equipments, automobiles and business machines.
Patent CA-1314453-C (CA)
Title: Interspace irrigator
Inventor: MICHELSON GARY K
IPC: A61M1/00
Filed: 1989-09-12
Granted: 1993-03-16
Abstract: Abstract A suction irrigation device for use in the lumbar interspace following conventional discectomy is disclosed. The device has an inflatable cuff to seal the interspace opening and permit the evacuation of residual disc fragments through a closed system so as to assure that such debris does not find its way into the spinal canal.