baber/WOPTO huggingface dataset:
Patent CA-2013368-A1 (CA)
Title: Method and apparatus for implementing electronic cash
IPC: G06Q20/00
Filed: 1990-03-29
Abstract: ABSTRACT OF THE DISCLOSURE        In an electronic cash implementing method, a user makes a bank apply a blind signature to user information Vi produced, by a one-way function, from secret information Si containing identification information, thereby obtaining signed user information.  Further, the user makes the bank apply a blind signature to information containing authentication information Xi produced, by a one-way function, from random information Ri, thereby obtaining signed authentication information.  The user uses an information group containing the signed user information, the signed authentication information, the user information and the authentication information, as electronic cash for payment to a shop.  The shop verifies the validity of the signed user information and the signed authentication information, and produces and sends to the user an inquiry.  In response to the inquiry the user produces a response Yi by using secret information and random information and sends it to the shop.  Having verified the validity of the response the shop accepts the electronic cash.
Patent CA-2014072-A1 (CA)
Title: Dual stereomicroscope
Inventor: HOPPL JOSEF K
IPC: A61B19/00
Filed: 1990-04-06
Abstract: ABSTRACT                DUAL STEREOMICROSCOPE       A dual stereoviewing operating microscope includes a single objective lens, which provides a single collimated beam of light, and first and second means for intercepting the collimated beam. The first and second means include first and second pairs of zoom tubes, each pair independent of the other.  The microscope further includes means for intercepting the collimated beam to cause a fifth observing light path which also includes a zoom tube.
Patent CA-2014419-A1 (CA)
Inventor: MORGAN PAUL W
IPC: H02G3/18
Filed: 1990-04-11
Abstract: Apparatus for use in providing an electrical connector having a plug receptacle with protection from intrusion therein of foreign matter comprises a resilient membrane adapted for disposition in contiguous overlying relation to the connector.          The membrane has a flat undersurface and extends therefrom to a preselected maximum thickness and therewith defines at least one recess extending from the undersurface for receipt of the connector plug receptacle. The membrane defines a pad distal from the undersurface by the extent of the recess.  The pad includes a portion of thickness greatly reduced from the membrane maximum thickness and positioned for registry with a prong of the plug and readily penetrable thereby to sealingly seat the prong in the receptacle.  The membrane may include a further pad penetrable for sealed passage of a communication cable therethrough.  The membrane is comprised of a material adapted to self-close the membrane portion upon withdrawal of the prong and communication cable therefrom.
Patent CA-2014906-A1 (CA)
Inventor: LEVINSON LIONEL M
IPC: H01M10/44
Filed: 1990-04-19
Abstract: ELECTRICAL-ENERGY-SUPPLYING  DEVICE  HAVING          AN EXTENDED  STORAGE  LIFE               Abstract of the Disclosure An electrical-energy-supplying device having an ex-tended storage life includes a thermoelectric (TE) working module which has a hot junction and a cold junction.  A storage battery for supplying electrical energy is thermally connected to the cold junction to transfer heat from the battery to the hot junction of the TE module when a voltage of proper polarity  and magnitude is applied to the TE mod-ule.  A thermal sensor is thermally connected to the battery and electrically connected to a cooling control circuit to cause application of the voltage to the TE module when the battery temperature exceeds a selected temperature level. The storage life of the battery may be extended by maintain-ing the battery temperature below the selected temperature level.
Patent CA-2015127-A1 (CA)
Title: Novel dna sequences which encode ancrod-like polypeptides and compositions comprising the expression products thereof
Inventor: GRAY JOHN G JR
IPC: A61K35/58
Filed: 1990-04-23
Abstract: ABSTRACT        The present invention relates to novel DNA sequences which encode polypeptides displaying the activity of ancrod and to recombinant DNA molecules which comprise them.  The invention also relates to hosts transformed with these DNA molecules as well as to the recombinant polypeptides expressed by them. This invention further relates to pharmaceutically effective compositions and methods which employ these recombinant polypeptides.
Patent CA-2015455-A1 (CA)
Title: Package for flowable contents and with an integrally handle, a method of and an apparatus for integrally moulding the same
Inventor: REIL WILHELM
IPC: B31B50/86
Filed: 1990-04-27
Abstract: Abstract Package for flowable contents and with an integrally moulded handle, a method of and an apparatus for integrally moulding the handle A  liquids  package  is described which has, formed by  a  longitudinal  sealing  seam,  a  tube at the ends of which  bottom  and  top  (4) are provided, of which the top (4)   consists   partially   of   thermoplastics  synthetic material  with  no  carrier  material, is injection moulded along  the  top  edge  of  the  tube and comprises a pourer device  (3),  the  tube  consisting  of  synthetic plastics coated  carrier  material,  the  integrally moulded top (4) comprising  at least three corners and, enclosing an angle, two  planes of which the first plane of the top is parallel with  the  plane of the bottom while the second plane is at least  partially  formed  from  the  tube material  and is connected  to  a  handle (5) having an upper horizontal (9) and  a  rear  vertical  web (10) diametrically opposite the pourer   edge  (7)  and  which  engage  around  the  handle aperture  and  which  is connected to the top (4) and which together  therewith  is  integrally  moulded  on the second plane  within  the  parallelepiped  outer  contours  of the package.          In  order  to  improve  such  a  package  so that a higher  quantity  of  integrally moulded units per unit of time  can  be  produced  without  damage to the handle upon removal  from  the mould, the package comprises the feature that  the  vertical  web (10) is provided with at least one holding cut-out (13) on its rear face (11).
Patent CA-2015481-A1 (CA)
Title: Devices featuring silicone elastomers
Inventor: FILAS ROBERT W
IPC: C08L83/07
Filed: 1990-04-26
Abstract: Devices are described in which certain crosslinked silicone polymers are incorporated. These polymers have various functions such as encapsulating agents, surface protective agents or agents to index match optical components (e.g. optical fiber, optical waveguide, etc.) to other optical devices or articles. The polymer is a vinyl-terminated dimethyldiphenylsiloxane copolymer crosslinked with tri-or tetrafunctional silanes in the presence of a platinum catalyst. The phenyl groupcontent of the crosslinked silicone copolymer is adjusted to change the index ofrefraction of the polymer to the optimum for the particular application contemplated. Polymer preparation procedures are described which yield good optical quality for the polymer as well as optimum physical and chemical properties.
Patent CA-2016345-A1 (CA)
Inventor: POPA JEAN-MICHEL
IPC: C01G25/02
Filed: 1990-05-09
Abstract: A microporous zirconia whose characteristic is that it has pores with a mean diameter of less than 2 nm. The invention also relates to a process for its preparation, characterised in that it consists in performing a thermohydrolysis of a zirconium salt, separating off the precipitate obtained and calcining it and in that it consists in using at least one anion which is more covalent than the hydroxyl anion before the calcination stage. The zirconia of the invention exhibits a thermal stability of its porosity, and this is particularly advantageous for catalytic applications.
Patent CA-2020698-A1 (CA)
IPC: G08B29/14
Filed: 1990-07-09
Abstract: A monitoring or control system includes a plurality of senders or sensors which are coupled to a central control unit by separate cables.  The control unit includes a microprocessor which executes an intermittent fault detection algorithm while an operator manually flexes each cable in turn.  When a cable with a fault is manipulated the algorithm responds by energizing a horn.
Patent CA-2020710-A1 (CA)
Title: Fishing tackle
Inventor: VLAHEK JOSIP
IPC: A01K91/06
Filed: 1990-07-09
Abstract: ABSTRACT     An article of fishing tackle comprising an open compartment, preferably in the form of a cone having an aperture through which a fishing line can pass and being adapted to be mounted on a fishing line above a hook, the density of the article being little different from water so that during casting and retrieval it moves to a position adjacent the hook to protect the bait on the hook and the hook but when the hook is in the water it moves away from the hook to enable fish to strike the hook.
Patent CA-2022033-A1 (CA)
Title: Method for combining a mixture of heterogeneous substances with liposomes
Inventor: MILLET-GENIN ISABELLE
IPC: A61K9/127
Filed: 1990-07-26
Abstract: A B S T R A C T            A method for combining a mixture of heterogeneous substances with liposomes.            In the method for combining with liposomes heterogeneous substances contained in a mixture, in particular, allergenic substances such as allergens and/or allergenic extracts, contained in an allergenic preparation, by adsorption on the surface of, and/or incorporation in, liposomes which comprise cholesterol, a phospholipid and/or at least one ionic lipid which gives the liposome a positive or negative charge, the liposome or its constituents are combined with the mixture of heterogeneous substances, the pH of the entire combination being higher or lower than the isoelectric point ip of the substances contained in the mixture, depending on whether the ionic lipid is charged positively or negatively respectively.
Patent CA-2023355-A1 (CA)
Title: Epidural oxygen sensor
Inventor: TAN JOSEF K S
IPC: A61B5/00
Filed: 1990-08-15
Abstract: EPIDURAL OXYGEN SENSOR           Abstract of the Disclosure:               A sensor for measuring the oxygen saturation of blood flow within the skull is described.  In a first embodiment the sensor comprises a photodetector and a pair of light emitting diodes surface mounted near the end of a length of flexible printed wiring.  The sensor is hermetically sealed by a coating of rubber or polymeric material which has an optical window over the photodetector and light emitting diodes.  The sensor is inserted through a burr hole drilled in the skull and slides between the skull and the dura of the brain.  The light emitting diodes are pulsed to illuminate blood within the dura and brain with light, and light reflected by the blood is received by the photodetector and converted to electrical signals.  The signals are processed by a pulse oximeter to provide an indication of blood saturation.  In a second embodiment the photodetector and light emitting diodes are mounted at the end of a core of compressible foam extending from the end of a hollow bone screw.  As the bone screw is screwed into a burr hole in the skull the photodetector and light emitting diodes will contact the dura and the foam will compress to maintain optical contact between the electrical components and the dura.  Light from the diodes is reflected by blood in the dura and brain, received by the photodetector, and the resultant electrical signals are processed by the pulse oximeter.
Patent CA-2025184-A1 (CA)
Inventor: FULTON STEVEN J
IPC: B05D3/00
Filed: 1990-09-12
Abstract: In the embodiment described in the specification, a hot melt ink image on a substrate (11) is treated in a continuous manner by moving it along a platen (27) having a heating zone to melt drops (38) of hot melt ink and cause them to spread on the substrate.  The platen has a flat central portion (34) and curved portions (33,35) at each end with curvatures suffi-cient to prevent formation of cockle.  At the output end of the heating zone, the substrate (11) is moved continuously into a quenching zone (36) where a cool-ing platen (16) cools the substrate (11) by thermal contact at a rapid rate to prevent crystallization or frosting of the hot melt ink image.  After the quench-ing zone, the substrate is moved along a surface hav-ing a reverse curvature with respect to the curved portions (33, 35) of the heating platen (27) to elim-inate residual curvature of the substrate resulting from the curved portions of the heating platen.
Patent CA-2026692-A1 (CA)
Title: Heart assist pump
Inventor: SUMMERS DAVID P
IPC: A61M1/10
Filed: 1990-10-02
Abstract: HEART ASSIST PUMP     ABSTRACT OF THE DISCLOSURE           A temporary circulatory assist pump is disclosed for implantation in the heart of a patient through the femoral artery.  The pump is driven by a flexible drive shaft extending through a catheter and being connected to a power source outside the body of the patient.  The pump utilizes the moineau pumping principal to pump blood at a rate of approximately three to four liters per minute through the circulatory system of the patient.
Patent CA-2027735-A1 (CA)
Title: Apparatus for erecting and filling a box
Inventor: LEUCHTENBERG GERD
IPC: B65B1/04
Filed: 1990-10-16
Abstract: ABSTRACT OF THE DISCLOSURE        A box is erected and filled with a flowable product by pressing a flat blank of the box through an opening in an erection frame utilizing as a forming ram an upwardly and downwardly open sleeve which is simultaneously filled with the flowable product through its upper open end, preferably through a filling tube with respect to which the sleeve is slidable.
Patent CA-2030934-A1 (CA)
Title: Oil sands separator and separation method
Inventor: STRAND WILLIAM L
IPC: B01D11/02
Filed: 1990-11-27
Abstract: Oil Sands Separator and Separation Method William L. Strand ABSTRACT      An oil sands separator includes a drum having a solids discharge end and a liquid discharge end and a spiral ribbon having a plurality of flights wound inside the interior of the drum. The spiral ribbon extends from the solids discharge end to adjacent the liquid discharge end. A first plate partially closes the solids discharge end and has a first opening disposed within it. A second plate partially closes the liquid discharge end and has a  second opening  disposed within  it.  A conveyor  is provided at the liquid discharge end for conveying feed into the drum through the second opening into at least one flight of the spiral ribbon. A pipe at the solids discharge end conveys hot water into the drum through the first opening. Pockets at the solids discharge end remove solids from the drum. A drive means rotates the drum with the spiral ribbon. A process of separating oil from oil sand comprises conveying oil sand to a feed end of a separator, providing hot water to a solids discharge end, opposed to the feed end, of the separator in an amount sufficient to cover  the oil  sand  in the  separator, flowing the hot water to the feed end of the separator, moving the oil sand to the solids discharge end of the separator while gently agitating the oil sand in the presence of the hot water to release oil into the hot water, removing solids from the solids discharge end of the separator; and removing the hot water and oil mixture from the feed end of the separator.
Patent CA-2031367-A1 (CA)
Inventor: BAYER CRAIG E
IPC: F23G7/06
Filed: 1990-12-03
Abstract: A regenerative bed incinerator 10 is provided with a gas recirculation duct 80 through which a controlled amount of gaseous fuel is injected in the contaminated process exhaust gases 3 prior to admission to the regenerative bed incinerator 10 to increase the heating valve of the process exhaust gases 3 so as to improve overall contaminated destruction efficiency for process exhaust gases which have a low level of combustible contaminants therein.
Patent CA-2033888-A1 (CA)
Title: Sag resistant, unfilled, low viscosity urethane structural adhesive
Inventor: BOERNER PETER W
IPC: C09J175/12
Filed: 1991-01-09
Abstract: A two component urethane structural adhesive formulation was developed containing a multi-functional aromatic amine terminated polyether as part of the curative component. The adhesive of the present invention is prepared by mixing and reacting the following low viscosity components:        Component A, a curative comprising a polyol and an aromatic amine terminated polyether containing two or more primary amine groups and having a molecular weight of from 250 to about 10,000 and Component B, comprising a polyisocyanate.      The adhesive of the invention is characterized by its improved sag resistance, its heavy body which is obtained without resort to included fillers or to prepolymerization of the components and by the relatively low viscosity (under about 15,000 cps) of its components which permits easy bulk handling.
Patent CA-2039411-A1 (CA)
Title: Thienopyrimidine derivatives
Inventor: EDIE RONNIE G
IPC: A01N43/90
Filed: 1991-03-28
Abstract: Abstract 4-Substituted-thieno[2,3-d],  [3,2-d], and [3,4-d]pyrimidines having fungicidal, insecticidal, and miticidal utility are disclosed.  Related 3-substituted-thieno[2,3-d],  [3,2-d], and [3,4-d]pyrimidin-4-(3H)-imines are useful as fungicides, insecticides, and miticides, and also as intermediates in preparing N-substituted-thienopyrimidin-4-amines.  Related o-cyano-amidines are useful as intermediates in preparing the 3-substituted-thieno[2,3-d],  [3,2-d], and [3,4-d]pyrimidin-4-(3H)-imines.
Patent CA-2039468-A1 (CA)
Title: Flame retardants for polymers
Inventor: GAINER JAMES
IPC: C07F9/38
Filed: 1991-03-28
Abstract: Flame Retardants for Polymers ABSTRACT OF THE DISCLOSURE A reaction of alumina trihydrate, dimethyl methylphosphonate and a phosphonic acid of formula            I where R1 denotes an alkyl group of 1 to 4 carbon atoms, optionally substituted by at least one group selected from a hydroxyl group, a carboxyl group or a phosphonic acid group -P(O)(OH)2, or a C6 to C12 aryl group and R2 denotes a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, is useful as a flame retardant for polymers.
Patent CA-2039493-A1 (CA)
Inventor: PARANT PIERRE-LOUIS
IPC: B63H16/18
Filed: 1991-03-28
Abstract: Cette invention est un vaisseau composé d'un flotteur sur leqel est installé un siège et un guidon .Le vaisseau est propulsé par la puissance humaine par un mécanisme de pédalier qui actionne une hélice Le systheme de guidon est relié a deux flotteurs qui offrent une stabilitée permettant a l' opérateur de débarquer et d embarquér en eau profonde . les flotteurs ayant une forme qui permet a l'appareil de glisser sur l'eau tel un surf et l'orsque l'appareil atteint une certain vitesse les deux flotteurs stabilisateur se dégage hors de l'eau . donc offrant beaucoup moin de résistance , l'appareil pourra grâce a la transmission de la puissance humaine efficace se déplacer a grand vitesse.
Patent CA-2039586-A1 (CA)
Title: Crosslinked pressure-sensitive adhesives tolerant of alcohol-based excipients used in transdermal delivery devices and method of preparing same
Inventor: APPELT MARIAN R
IPC: C09J133/08
Filed: 1991-04-02
Abstract: Docket No. 43885CAN1A                  ABSTRACT           A crosslinked, acrylate-based pressure-sensitive adhesive is provided to obtain a creep compliance value of the pressure-sensitive adhesive of between 1.1 x 10-5 cm2/dyne to about 2.3 x 105 cm2 /dyne in the presence of alcohol-based excipients, such as ethanol serving as a solvent or a penetration enchancing agent used with transdermal delivery devices.  The method of preparing such crosslinked pressure-sensitive adhesive by using electron beam radiation of from 5 kGy to 200 kGy, and medical articles using the crosslinked pressure-sensitive adhesive as a layer therein to contact skin are also provided.
Patent CA-2041892-A1 (CA)
Title: Formation of conversion coatings on surfaces of zinc or zinc alloys
Inventor: KOLBERG THOMAS
IPC: C23C22/60
Filed: 1991-05-06
Abstract: In a process of forming conversion coatings on surfaces of zinc and zinc alloys, in which the surfaces are contacted in a first stage with a solution which contains at least two different polyvalent metal ions and also contains such an amount of complexing agent that the polyvalent metal ions are kept in solution, and which has a pI3 value of,at least 11, and the surfaces are treated in a succeeding stage with a post rinsing solution, a succeeding stage comprises a treatment with a post rinsing solution which contains aluminum, zirconium and fluoride and has been adjusted to a pH value not in excess of five.      According to desirable features of the process the total concentration of Al + Zr + F is adjusted to a value between 0.1 and 8.0 g/l, preferably between 0.2 and 5.0 g/l, and the Al : Zr : F mole ratio is adjusted to (0.15 to 8.0) : 1 : (5 to 52) or to (0.15 to 0.67) : 1 : (5 to 7).      The treatment is suitably carried out for 1 to 120 seconds preferably 1 to 30 seconds, and at a temperature of 20 to 80°C, preferably 20 to 50°C.      The process can desirably be used for a pretreatment before a succeeding painting, film laminating or adhesive coating operation.
Patent CA-2042291-A1 (CA)
Title: Dynamic hierarchical associative memory
Inventor: FRANK STEVEN J
IPC: G06F12/00
Filed: 1991-05-10
Abstract: An associative memory having an associativity of 2q, where (q) is an integer greater than or equal to one, is provided for storing information relating to data. The memory includes (n) tables, each having a plurality of entries for storing signals associated with data descriptors having a common set portion and common other portions. The entries of table (k), where (k) represents successive integers between (1) and (n-1), store pointers to respective entries of table (k+1).      The entries of table (1) are arranged for access as a function of the common set portion and the common portion (1) with which they are respectively associated. The entries of the other tables are arranged for access as a function of (i) a value of the common set portion, (ii) a value of a pointer-representative signal of the respective table (m-1) entry means, and (iii) the value of the common portion(m) with which such table(m) entry means is respectively associated. The entries of table(n) store information relating to one or more data having a common portion(n).
Patent CA-2051490-A1 (CA)
Inventor: HESKEY GEORGE T
IPC: B25B27/14
Filed: 1991-09-16
Abstract: ABSTRACT A cam roller brake for a crimping tool for electrical con-nectors having a cam actuated toggle mechanism for operating crimping jaws in which the roller brake regulates movement of the cam in precise crimping cycles.