baber/WOPTO huggingface dataset:
Patent CA-2027010-C (CA)
Title: 3-substituted 2-hydroxy-3-formylpropionic esters, the preparation thereof and the use thereof for preparing 3-substituted 3-formylacrylic esters
Inventor: MERGER FRANZ
IPC: C07C67/317
Filed: 1990-10-05
Granted: 2000-07-18
Abstract: Abstract of the Disclosure: A 3-substituted 2-hydroxy-3-formylpropionic ester of the formula I    where R1 is lower alkyl, and R2 is straight-chain or branched alkyl of 1 to 10 carbon atoms, is obtained by adding an alkanal of the formula II    and an alkyl glyoxylate of the formula III    simultaneously to a catalyst system composed of a salt or a mixture of a secondary amine and a carboxylic acid in such a way that the temperature does not exceed 90°C, preferably 80°C, or else aiding one of the reactants of the formula II or III to a mixture of the catalyst system described above and the other reactant in such a way that the temperature does not exceed 90°C. The 2-hydroxy-3-formylpropionic ester of the formula I can be converted by treatment with dehydrating agents, especially acetic anhydride, into good yields of the corresponding 3-substituted 3-formylacrylic ester.
Patent CA-2031905-C (CA)
Inventor: SATO OSAMU
IPC: H04N5/238
Filed: 1990-12-10
Granted: 1996-04-30
Abstract: A light quantity adjusting device adjusts the quantity of light by moving a light quantity adjusting member by means of an electromagnetic driving part.  The device includes a circuit arranged to drive the electro-magnetic driving part by producing a pulse output at a period which is shorter than the time constant of the electromagnetic driving part.
Patent CA-2039125-C (CA)
Title: Porous electrode with enhanced reactive surface
Inventor: DAHL ROGER W
IPC: A61B5/296
Filed: 1991-03-26
Granted: 1998-08-25
Abstract: A body implantable electrode includes a platinum wire or filament compressed and bundled into a serpentine configuration and retained within a platinum screen, thus to form a highly porous electrode.  The electrode body is then surface treated by vapor deposition or vapor deposition in combination with electroplating, to provide an adhesion layer, a texturizing layer, and one or more catalytic cover layers.  The texturizing layer, which can be titanium, carbon black or aluminium, is formed with multiple nodules, and depressions which substantially increase the reactive surface area of the electrode.  The catalytic layer can be platinum, platinum-black or platinum followed by a layer of carbon.  The combination of macro porosity and micro texture provides an electrode that promotes tissue ingrowth after implant and maintains a low chronic stimulation threshold due to its large reactive surface area in proportion to its geometric size.
Patent CA-2039197-C (CA)
Title: Pharmaceutic formulation for the treatment of alcoholism
Inventor: OPITZ KLAUS
IPC: A61P25/30
Filed: 1991-03-27
Granted: 1995-09-12
Abstract: Galanthamine and the pharmaceutically suitable acid addition salts thereof can be used for the treatment of alcoholism; these compounds are released from ade-quate pharmaceutic formulations which are administer-ed, e.g., orally, transdermally, or otherwise paren-terally, in a continuous and controlled manner.
Patent CA-2041847-C (CA)
Title: Tandem brake roller system
Inventor: AGNOFF CHARLES
IPC: B65G13/075
Filed: 1991-05-06
Granted: 1996-09-24
Abstract: A tandem braking system for use in gravity conveyors to control the speed of loaded pallets travelling thereon, especially pallets which have non-continuous support surfaces or support surfaces which are aligned perpendicular to the direc-tion of travel.  A brake roller is mounted below the conveyor support plane.  Two floating rollers with pliable surfaces are rotatably mounted above the brake roller and rise above the conveyor support plane.  Engagement of the tandem brake roller causes downward movement and compression of the floating rollers and causes a braking force to be exerted on the pallet base.
Patent CA-2045759-C (CA)
Inventor: CLARKIN WILLIAM J
IPC: B01J4/00
Filed: 1991-06-26
Granted: 2000-10-17
Abstract: The invention is directed to a device and a method for the application of any adhesive. The device comprise a hydraulically actuated mixhead which contains means to controllably deliver the components of a polyurethane based adhesive to the point of application of the adhesive and the means to separate between the components until the reaction between them is desired. Typically the components are in the form of streams and comprise an isocyanate stream and a polyol stream, the volume and flow velocity of each of which are in accordance with the invention hydraulically controlled.
Patent CA-2047885-C (CA)
Title: Method and apparatus for automated meeting agenda generation in a data processing system
Inventor: HAGER DEAN JOSEPH
IPC: G06Q10/10
Filed: 1991-07-25
Granted: 1996-01-16
Abstract: The method and apparatus of the present invention permit the automatic generation of a meeting agenda for a requested meeting concerning a document stored within a data processing system.  A document, such as an invention disclosure document, is stored within a data processing system  and  identified  as  the  subject  of  a  desired meeting.   Evaluation comments by a plurality of users within  the  data  processing  system  regarding  the identified document are tabulated and utilized to create a meeting agenda automatically in response to a request for  a  meeting.   In  one  preferred  embodiment  of  the present invention, desired meeting parameters including at least:  a desired meeting duration;  a desired date span; and a list of desired attendees are selected by a meeting requester and copies of the automatically created meeting  agenda  are  automatically  transmitted  to  each desired attendee in conjunction with a notice of the scheduled meeting. Printed copies of the meeting agenda may  also  be  automatically  created  in  response  to  a scheduled meeting.
Patent CA-2048583-C (CA)
Title: Magnetic recording and reproducing apparatus
Inventor: OHTA KENJI
IPC: G11B11/105
Filed: 1991-08-07
Granted: 1995-05-23
Abstract: A magnetic recording and reproducing apparatus using a recording medium made of a ferrimagnetic material, comprises a magnetic head having a width larger than that of an information recording track of the recording medium. For recording, light beams are radiated from a light source onto a selected information recording track to raise the temperature of the irradiated area to approximately a Curie temperature so as to allow recording only on that area. For reproduction,  light beams are radiated from another light  source  onto  areas on both  sides  of  a  selected information recording track to raise the temperature of the irradiated areas to approximately a magnetic compensation temperature so as to allow reproduction only from the desired track,  thus preventing crosstalk from the side tracks.
Patent CA-2049985-C (CA)
Inventor: CATALLO FRANK
IPC: D06C21/00
Filed: 1991-03-12
Granted: 2000-06-20
Abstract: L'invention concerne un appareil amélioré permettant d'effectuer le rétrécissement compressif des matières fibreuses (12). L'appareil utilise un système de surfaces mobiles (18, 15) allant à des vitesses différentes, associé à un système d'obturation (22) espacé de ladite surface mobile (15) ou des surfaces mobiles (18, 15) pour former ensemble une chambre de bourrage (21) destinée à comprimer la matière fibreuse (12). Une lame d'impact améliorée (50) est prévue pour faciliter la compression de la matière fibreuse (12), ladite lame (50) comprenant entre autres un appareil (110) permettant de maintenir la lame (50) de la manière la plus droite possible pour qu'elle soit totalement efficace.
Patent CA-2052616-C (CA)
Title: Grease loaded grapple dampener
Inventor: SHEPHERD LEONARD LAVERNE
IPC: F16F7/04
Filed: 1991-10-02
Granted: 1996-01-16
Abstract: A grease loaded dampener for the swivel link of a grapple skidder is mounted to the pivot pin of the swivel link.  The dampener is provided with a two sets of friction plates.  The friction plates are compressed by an annular piston that is slidably mounted to a bushing that is secured to the pivot pin.  A grease zerk supplies grease to the cylinder formed between the bushing and the annular piston.  A pressure relief valve is in fluid communication with the cylinder and prevents the cylinder from becoming over pressurized unduly compressing the friction plates.
Patent CA-2054729-C (CA)
Title: Flow generating apparatus and method of manufacturing the apparatus
Inventor: NEGISHI MASATAKA
IPC: F04D17/16
Filed: 1991-03-02
Granted: 1998-04-28
Abstract: Movement of a fluid such as air is produced by rotating about a rotational axis (O-O) a plurality of flow generating plates (P, P1, P1a, P1b, P2, P3) arranged parallelly with clearances (CL) therebetween. The clearances (CL) between adjacent two flow generating plates for producing the movement of the fluid most effectively only by adhesion of the fluid to the flow generating plates, is set as follows. That is, the clearances (CL) are set to be twice a value (c) of a distance of an intermediate portion between the surface of the flow generating plate contacting a portion of the fluid in a close boundary layer which is rotated and moved substantially together with the flow generating plate and a remote fluid boundary layer which is substantially not influenced by centrifugal force due to the rotation of the flow generating plate. In the case of air, the clearances are about 0.5 mm. It is preferred to form the flow generating plate so as to have a waved surface for improving the flow generating efficiency.
Patent CA-2058073-C (CA)
Inventor: JAEGER PHILIPPE
IPC: C07C47/22
Filed: 1991-12-19
Granted: 1996-06-18
Abstract: La présente invention a pour objet un procédé de préparation de catalyseurs enrobés à base de molybdates de bismuth et de fer dopés par du phosphore et du potassium.   Le procédé comprend  la préparation de catalyseurs enrobés du type molybdates de bismuth et de fer, dopés notamment avec du phosphore et du potassium, comprenant la préparation d'une composition   intermédiaire  catalytiquement  active,   sa calcination suivie de son broyage, l'enrobage de particules d'un support solide et inerte dont la surface externe est rugueuse par ladite composition broyée ou un mélange la renfermant suivi de la calcination des particules ainsi enrobées et il est caractérisé en ce que: a) la composition intermédiaire  catalytiquement  active  est  exempte  de potassium et de phosphore, et en ce que b) l'introduction du potassium et du phosphore est réalisée lors de l'étape d'enrobage.
Patent CA-2061699-C (CA)
Title: Pyranyl cyanoguanidine derivatives
Inventor: ATWAL KARNAIL
IPC: C07D405/04
Filed: 1992-02-24
Granted: 2002-05-21
Abstract: Novel compounds having the formula (See formula I) wherein R1-R9 are as described herein, are useful as antiischemic agents.
Patent CA-2063807-C (CA)
Title: Ultra-high multi-story building and construction thereof
Inventor: KOBORI TAKUJI
IPC: E04B1/34
Filed: 1991-03-13
Granted: 1998-10-27
Abstract: An extra super multi-story building having one piece of extra super multi-story of about 200 story construction, two pieces of extra super multi-stories of about 150 story construction and one piece of extra super multi-story of about 100 story construction.  Each extra super multi-story includes two through four pieces of tower-like super multi-stories of about 50 story construction and of about 50 m in diameter (floor area:  about 200m2/story). A sky lobby is provided about every 50 stories connecting the extra super multi-stories.          Four shuttle elevators lead from the ground to the sky lobbies, and a sightseeing tower and high-rise garden (sky dome) are provided at the rooftop of the extra super multi-story building.  Main facilities such as offices, hotels and residences are arranged in each extra multi-story.  In addition, in order to be able to construct the extra super multi-story building, the individual extra super multi-story buildings are monolithically connected with one another by girders every several ten stories, and a space truss is constructed on the outside of each extra super multi-story building.
Patent CA-2071782-C (CA)
Title: Tire removal tool
Inventor: TRAN LOI BAN
IPC: B60C25/02
Filed: 1992-06-22
Granted: 1999-01-05
Abstract: A tool for removing a tire from a wheel rim includes an elongated body member with a handle at one end and a tool head at the other end.   The tool head includes a tire engaging member having at least one tire bead support and terminating in at least two laterally spaced apart tire contact parts.   The tool head further includes  a rigid,  L-shaped wheel rim engaging member terminating in a wheel rim contact part.  The wheel rim contact part is sufficiently spaced from the tire engaging member to accept a wheel rim flange therebetween.  In a preferred embodiment, each of the at least two tire contact parts and the wheel rim contact part has a rotatable roller.
Patent CA-2076587-C (CA)
Inventor: SASAKI TOHRU
IPC: A61F13/496
Filed: 1992-08-21
Granted: 1997-09-23
Abstract: Disposable   training   pants    improved    for effectively making babies wearing the training pants aware of their own excretions.  There are provided on a topsheet of the pants  a moistness holding sheet having  floating zones serving as moistness sensor means.
Patent CA-2079383-C (CA)
Inventor: MARKUS DAVID ROBERT
IPC: H02P9/30
Filed: 1992-09-29
Granted: 2001-10-23
Abstract: An automatic voltage regulator senses and controls the terminal voltage of a separately excited generator by controlling the field current applied to the field winding. In order to improve the response time of the circuit, the circuitry relies on the phasor relationships between the generator phase voltages to obviate the need for a rectification and filtering circuit, used in known AVR's. More specifically, each of the sinusoidal phase voltages is sampled and squared. The squared phase voltages are then summed together. The square root of the sum is used to provide a DC voltage signal, proportional to the terminal phase voltages VA, Vg and VC. The DC voltage signal may then be compared with a reference signal to generate an error signal for use in regulating the generator terminal voltage by controlling the field current applied to the generator field winding.
Patent CA-2080318-C (CA)
Title: Method and apparatus for manufacturing one-piece water jacket cores
Inventor: KELLEY PATRICK M
IPC: F02F1/24
Filed: 1992-10-09
Granted: 2004-08-03
Abstract: A one-piece water jacket core for an internal combustion engine is formed by providing a first core box portion and a second core box portion adapted for assembly and formation of the one-piece water jacket core. The first core box portion includes a first cavity adapted to form a lower portion of the one-piece water jacket core and the second core box portion includes a second cavity adapted to form an upper portion of the one-piece water jacket core. A plurality of movable members are pivotally carried adjacent to, and preferably by, one of the core box portions. each of the pivotal movable members includes a portion adapted to form a water jacket port and to be pivoted, after assembly of the first and second core box portions, to a position forming one of the water jacket ports in the one-piece water jacket core. The invention is particularly adapted for the formation of one-piece water jacket cores with a cold-cure process.
Patent CA-2080368-C (CA)
Inventor: EIDENSCHINK RUDOLF
IPC: C07C69/753
Filed: 1991-04-10
Granted: 1998-06-23
Abstract: Nouveaux dérivés de méthane avec tétrasubstitution, de formule générale C¢-Sp-M-R!4, où les radicaux -Sp-M-R- sont les mêmes ou différents; le symbole Sp est un groupe séparateur représentant indépendamment un halogène, -CN ou un radical alkylène ou alcénylène avec substitution -CN ou -CF3, de 1 à 12 atomes de carbone, où un ou deux groupes CH~ non voisins peuvent être remplacés par -O-, -CO-, -COO-, -OOC-, -CONH- ou -OCOO-, ou une liaison simple; R est un hydrogène, un halogène, -CN, -CF3, -OCF3, -NO2, -N(CH3)2, un alkyle à chaîne droite ou ramifiée, sans substitution ou avec substitution par un ou plusieurs -CN, -NH2, -CF3 ou halogènes, ou un alcényle de 1 à 12 atomes de carbone, radicaux dans lesquels un ou plusieurs groupes CH2 non voisins peuvent être remplacés par des radicaux -O-, -CO-, -OOC-, -COO- ou OCOO-; M représente un groupe de type mésogène.  Du fait de leurs propriétés de cristaux liquides, les nouveaux composés sont tout à fait appropriés pour les milieux à cristaux liquides.
Patent CA-2085248-C (CA)
Title: Peripheral seal for floating tank cover
Inventor: WAGONER ROBERT BOYD
IPC: B65D88/42
Filed: 1991-05-10
Granted: 2002-05-07
Abstract: A rim space (20) sealing device comprising a peripheral sealing ring of over-lapped shoe segments (36) attached to a floating cover within a storage tank (22). Spring loaded hanger-pushers (68) and horizontal springs (74) keep the peripheral sealing ring of shoe segments (36) pressed against the tank wall (22) and also keep the floating cover (24) centered within the tank (22). The space (20) between the peripheral seal-ing ring of shoe segments (36) and the floating cover (24) is covered by a flexible fabric (94) that prevents products loss. Vertical movement of the individual shoe segments (36) over each other is prevented by a series of circumferentially arranged rods (82). The over-lap of the shoe segments (36) is restricted by a series of bars (44) forming expansion-contraction spaces (48).
Patent CA-2085753-C (CA)
Title: Time division multiplexer chip and process thereof
Inventor: DALY DANIEL F
IPC: H04M3/533
Filed: 1992-12-18
Granted: 1998-09-29
Abstract: A time division multiplexer (TDM) chip having particular application in a digital voice processing system wherein voice processing functions are run in software.  The TDM chip has a pair of RAMs which are in communication with a bus and at least one interface that provides communication with other devices.  An bank switch controls the RAMs so that their communication with the bus and the interface alternates, i.e. while the first RAM is in communication with  the interface the other RAM is in communication with the bus.  After a determined period the communications are reversed.  This scheme provides faster processing and more efficient use of the components.  Including is a provision for allowing multiple interfaces to communicate with the RAM alternatively in a time shared manner.
Patent CA-2090718-C (CA)
Title: Miniaturized low power x-ray source
Inventor: NOMIKOS PETER M
IPC: H01J35/32
Filed: 1991-08-30
Granted: 2000-05-30
Abstract: A low-level, electron beam (16) activated source (10) of preselected or programmable duration and intensity x-rays. The source may be fully or partially implanted into, or surface-mounted onto a desired area to effect a preselected irradiated region. In medical applications, a method of treating malignant cells, such as tumors, in vivo, utilizing the apparatus described above.
Patent CA-2091524-C (CA)
Title: Scramble codec and a television receiver incorporating same
Inventor: HIRASHIMA MASAYOSHI
IPC: H04N7/167
Filed: 1993-03-11
Granted: 1999-06-15
Abstract: Having been made to overcome the disadvantages of the prior art, the invention has for its object to make it easy to build a scramble encoder and decoder into a television receiver which is to serve both as a data transmitter and as a data receiver and provide is with both the function to receive secured communication data and record them as secured information.    The invention thus relates to a scramble codec comprising a latch means for holding an ID number for securing television or other communication data, a pair of memories which can be alternately loaded with input communication data signals in a predetermined cycle, a shift register which is initialized with the ID number held by the latch means to output dissimilar pseudo-random pulse signals in a predetermined cycle, an address setting circuit which sets, as the initial value, a value corresponding to the output of the shift register in scrambling and a value obtainable by subtracting the output of the shift register from the maximum address value of the memories in descrambling, and an address counter which reads communication data from the address designated by the address setting circuit.  The above scramble codec has both the function of a decoder for scrambled communication data and the function of an encoder for scrambling communication data, is simple in construction and compact and features improved security.     The scramble codec, as such, can be easily built into a receiver such as a television receiver to provide, for example, a television receiver which does not only function as an information receiver but can be used in combination with a VTR or other recording device for the mutual transmission and reception of communication data with security fully retained.     Further improvement in security is obtained when the above scramble codec further comprises a nonvolatile key data memory for holding a specified key data and an EOR circuit which takes the exclusive logical sum of the ID number data held by the latch means and the output of the key data memory, with the output of the EOR circuit being set as the initial value in the shift register which outputs dissimilar pseudorandom pulse signals in a predetermined cycle.
Patent CA-2095560-C (CA)
Inventor: PLICHTA EDWARD J
IPC: H01M10/0566
Filed: 1993-05-05
Granted: 2000-07-04
Abstract: A highly conductive electrolyte is provided for use in an ambient temperature rechargeable lithium battery including a lithium intercalating anode and a more positive lithium intercalating cathode. The electrolyte includes a solution of a lithium salt in acetonitrile.
Patent CA-2101184-C (CA)
Title: Ink, ink jet recording method using the same, and ink jet recording apparatus using the same
Inventor: KOIKE SHOJI
IPC: C09D11/00
Filed: 1993-07-23
Granted: 1997-09-09
Abstract: Provided is an ink which contains a recording agent and a liquid medium for dissolving or dispersing said recording agent, said ink being characterized in that said ink contains 0.01 to 50 ppm of a chelating agent based on the total weight of said ink.
Patent CA-2111861-C (CA)
Inventor: CARR IAN R
IPC: A61M37/00
Filed: 1992-06-19
Granted: 1995-10-10
Abstract: In combination, a tracheostomy tube (100) including a curved cannula (20) lying substantially within a given plane and formed with a non-constant radius, and an obturator means (10) insertable into the cannula for guiding intubation of the trache-ostomy tube into the cannula. The obturator comprises a single piece member formed of a resilient and flexible material and cur-vable upon insertion within the cannula with a non-constant radius lying within the given plane, the member having proximal (12) and distal (11) ends and a shaft (13) extending therebetween, the shaft over a substantial portion of its length being dimen-sioned such as to impart sufficient rigidity both in the direction substantially perpendicular and also substantially parallel to the given plane. The shaft also includes a first flexible portion being of substantially rectangular cross-section having a width and a thickness.