baber/WOPTO huggingface dataset:
Patent CA-2093588-C (CA)
Title: Injection molding torpedo with shaft having ceramic central portion
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/30
Filed: 1993-04-07
Granted: 2001-07-24
Abstract: Injection molding apparatus wherein a torpedo is mounted in the front end of a heated nozzle. The torpedo has spaced blades extending inwardly from an outer collar to an elongated shaft which extends centrally in the melt bore. The torpedo shaft has an elongated central portion which is securely press fitted in a steel outer sleeve from which the blades extend. The elongated central portion of the torpedo shaft extends forwardly into the gate, and is formed of an engineered ceramic such as silicon carbide which is very thermally conductive as well as abrasion and corrosion resistant. In one embodiment, the gate extends through a gate insert which is also formed of a thermally conductive and abrasion and corrosion resistant engineered ceramic material.
Patent CA-2093631-C (CA)
Title: Pyrroloazepine derivative
Inventor: ISHIHARA TAKAFUMI
IPC: C07D487/04
Filed: 1992-08-06
Granted: 2003-09-23
Abstract: This invention provides a pyrroloazepine deriva-tive represented by the following formula (I): (see figure I) wherein, when the bond indicated by the dashed line is present, Z1 represents H but, when the bond indicated by the dashed line is absent, Z1 represents H and Z2 represents OH or Z1 and Z2 are taken together to form O or a group NOR1, R1 representing H, an alkyl group or the like, R represents H, an alkyl group or the like; A represents an alkylene, alkenyl.ene or alkynylene group with one of Hs being optionally substituted by OH: Y represents a group: (see figure II, III) in which R2 and R3 individually represent H, an alkyl group or the like, R4 and R5 individually represent H or an alkyl group; B represents a carbonyl group, a sulfonyl group or the like: m stands for 1 or 2; n stands for 0 or 1; and D represents an alkoxy group, an aromatic heterocyclic ring or the like; a salt thereof; a preparation process thereof; and a therapeutic for circulatory diseases, said therapeutic containing as an active ingredient the pyrroloazepine derivative or the salt thereof.
Patent CA-2100552-C (CA)
Inventor: THORN DAVID LINCOLN
IPC: B01J31/02
Filed: 1992-01-02
Granted: 2004-05-25
Abstract: A process for producing phosphonate esters containing the 2-(pyridyl)ethyl group by reacting a vinylpyridine with a di- or trihydrocarbylphosphite in the presence of a selected silane, protic acid, or Lewis acid is disclosed. Also disclosed are novel silyl-phosphonate esters containing the 2-(pyridyl)ethyl group. All of the compounds produced herein are useful as catalysts for increasing the molecular weight of polyamides.
Patent CA-2101475-C (CA)
Title: On-line battery impedance measurement
Inventor: WURST JOHN W
IPC: G01R31/36
Filed: 1993-07-28
Granted: 1997-12-09
Abstract: Impedance  measurement  of  battery  cells  within  a battery system comprising at least one string of battery cells is accomplished by dividing each of the strings into at least two portions.   A loading current for measurement purposes is only imposed on a portion of one of the strings at any given time and battery cell voltage measurements are made only within this string portion.
Patent CA-2105009-C (CA)
Title: Convertible security enclosure for open deck vehicle
Inventor: SCHLACHTER BRADLEY S
IPC: B60R5/04
Filed: 1993-08-27
Granted: 1997-08-19
Abstract: A security enclosure is mounted on the open load deck of a jeep between the rear seat and the tailgate.  The load deck, deck sidewalls and tailgate provide four sidewalls of the security compartment.  Top and forward enclosure panels of the security enclosure are movably coupled together for pivotal movement by a hinge.   The forward enclosure panel is stabilized by side flanges which are rigidly attached in flush engagement to the load deck side panels.  The top enclosure panel is releasably locked to the load deck side panels by spring loaded lock pins which are concealed within the security compartment.   According to this arrangement, access to the security compartment and to the lock assembly is controlled by normal operation of the tailgate and its lock.  Upon release of the lock pins, the top enclosure panel may be rotated out of the way to provide a top opening access to the load deck for accommodating oversized articles.
Patent CA-2110800-C (CA)
Inventor: BARKER PHILIP ALFRED
IPC: C03C25/10
Filed: 1992-07-01
Granted: 2000-10-24
Abstract: An optical fibre package suitable for installation using a fibre blowing process comprises at least one optical fibre, an inner costing about said fibre, and an outer resin coating about said inner coating, said resin coating including a significant plurality of particulate inclusions at least 10 .mu.m across, wherein the concentration of the particulate inclusions is significantly greater at the outer surface of the resin gating than at the inner limit of the resin coating. The inclusions may be hollow glass microspheres or mica flakes. The relative absence of significant particulate inclusions at the inner limit of the resin coating improves the mechanical performance of the fibre package relative to similar known packages. The presence of significant inclusions at the outer surface of the resin coating tends, during a blowing process, to increase viscous drag effects and to reduce friction between the package and the duct into which the package is blown, thereby enhancing blowability.
Patent CA-2112317-C (CA)
Title: Copolymer useful as a pour point depressant for a lubricating oil
Inventor: GORE ROBERT H
IPC: C10M145/14
Filed: 1994-03-01
Granted: 2005-05-17
Abstract: A copolymer useful as a pour point depressant for hydrocarbon lubricating oils includes from about 15 mole percent to about 67 mole percent comonomeric units derived from a (C8-C15) alkyl (meth)acrylate monomer, from about 3 mole percent to about 40 mole percent comonomeric units derived from a (C16-C24) alkyl (meth)acrylate monomers and from greater than 30 mole percent to about 65 mole percent comonomeric units derived from a (C1-C4)alkyl (meth)acrylate monomer.
Patent CA-2114106-C (CA)
Title: Process for preparing n-alkyl polyhydroxyalkyl amines in aqueous/hydroxy solvents
Inventor: KAO JUNAN
IPC: C11D1/52
Filed: 1992-07-20
Granted: 2002-05-28
Abstract: Amines such as methyl amine are reacted with materials such as reducing sugars in aqueous/hydroxy solvents such as wa-ter and/or methanol to prepare N-alkyl polyhydroxy amines. Accordingly, glucose is reacted with methyl amine and the resulting adduct is hydrogenated to yield N-methylglucamine. The N-alkyl polyhydroxyamines can be subsequently reacted with fatty es-ters to provide polyhydroxy fatty acid amides useful as detersive surfactants.  Thus, detersive surfactants are available from non-petrochemical precursors such as sugars and sugar sources such as corn syrup, and fatty acid esters derivable from various fats and oils.
Patent CA-2114129-C (CA)
Title: Aerofoil with variable geometry expansion surface
Inventor: ASHILL PATRICK RALPH
IPC: B64C3/30
Filed: 1992-07-28
Granted: 2003-09-16
Abstract: A wing, or similar article of aerofoil section, has a variable geomety surface for the active control of shock strength and transonic wave drag. In one embodiment, the wing has a region of distensible skin (4) aft of the line of maximum section, which extends along the span of the wing in those areas that experience drag.  Pressure means (10, 20, 30) within the wing outwardly def-lest the distensible region and produce a local bulge in the expansion surface. This bulge induces pre-shock compression and re-duces the effect of the shock. The bulge is retracted by the natural elasticity of the skin material (which can be a conventional alu-minium alloy) upon removal of the applied pressure. In another embodiment, the wing has a ramp portion (14) which is outwardly deflectable for the same purpose, The invention is applicable to supercritical and natural laminar flow wings.
Patent CA-2126598-C (CA)
Title: Waveform shaping method and equipment
Inventor: URABE YOSHIO
IPC: H04L25/03
Filed: 1994-06-23
Granted: 2001-12-11
Abstract: In the transmitter which carries out burst transmission using information data as a packet, if the status is divided into four modes, namely, burst stop mode, burst rising mode, burst continuous mode, and burst falling mode, a waveform shaping equipment designed to read out shaped waveform data for each mode from outputs of either of the two memory tables, the first memory table which holds waveform data for specific data patterns used in common in burst rising made and burst falling mode and the second memory table which holds waveform data for all data patterns used in the burst continuous mode, or a waveform shaping equipment comprising the third memory table which holds waveform data corresponding to all the data patterns used in the burst rising mode and the fourth memory table which holds waveform data corresponding to all data patterns used in the burst falling mode generating shaped waveform data by synthesizing the two outputs of the third and the fourth memory tables at the time of burst continuous mode.
Patent CA-2127084-C (CA)
Title: 2,3-dihydro-1,4-benzodioxin-5-yl-piperazine derivatives having 5-ht1a-antagonistic activity
Inventor: HARTOG JAN
IPC: C07D295/00
Filed: 1994-06-29
Granted: 2007-04-10
Abstract: The present invention is concerned with compounds having 5-HT1A antagonistic activity useful in treating CNS disorders and having formula 2   wherein - R1 is halogen, lower alkyl or alkoxy, hydroxy, trifluoromethyl or cyano, - m has the value 1 or 2 and n has the value 0 or 1, - A represents an alkylene chain containing 2-6 C-atoms which may be substituted with one or more lower alkyl groups or a monocyclic (hetero)aryl group, and - B is methylene, ethylene, carbonyl, sulfinyl, sulfonyl or sulfur, and salts thereof.
Patent CA-2127502-C (CA)
Title: Air flow control system and method for a dual duct system
Inventor: COOGAN JAMES JOSEPH
IPC: B60B35/00
Filed: 1994-07-06
Granted: 1998-11-24
Abstract: A dual-duct HVAC system for providing a desired comfort level in a room, includes a controller that carries out a simple operation that determines the total open damper positions for dual dampers in a dual duct system to effect a desired air flow. Using the total open damper position information as damper control  information,  the controller also determines a relative damper position difference required between the two dampers to effect a desired temperature level while also meeting the air flow requirement as determined from the total open damper position information.  The combination of the total open damper position information and the relative damper  position  difference  is  used  as  control information to control both dampers.   Preferably, the controller gives priority of air flow control over temperature control by determining a valid damper  position  difference  range  for  use  in conjunction with the total open damper position information.
Patent CA-2130466-C (CA)
Title: Aqueous hard surface detergent compositions containing calcium ions
Inventor: OKABE YUKO
IPC: C11D1/29
Filed: 1993-02-08
Granted: 1998-12-15
Abstract: An aqueous hard surface detergent composition which provides improved solution f eel comprising 3-35 % by weight of a surfactant system selected from the group consisting of anionic, nonionic, ampho teric surfactants, and mixtures thereof and 0.01-0.5 % by weight calcium ion.
Patent CA-2130667-C (CA)
Inventor: TIEDEMANN EDWARD G JR
IPC: H04L12/28
Filed: 1993-03-04
Granted: 2000-02-01
Abstract: Collisions between messages simultaneously transmitted by multiple, spread spectrum transmitters are reduced by distributing the transmissions over the available resources of the receiver. Each mobile station uses one or more randomization methods to distribute its transmissions. Each mobile station includes a microprocessor (100); an encoder (140); a timing generator (136); a PN long code sequence generator (146); and XOR gate (152). The system is used in a CDMA mobile telephone system.
Patent CA-2131923-C (CA)
Inventor: LEWIS JOHN C JR
IPC: A46B5/06
Filed: 1994-08-12
Granted: 2003-09-30
Abstract: There is disclosed therein a method and a tufted construction formed of a thermoplastic sheet which defines a two-dimensional projection of a three-dimensional tufted construction design which has integrally mutually spaced prefused tufts mounted at preselected areas on one surface thereof. The three-dimensional design includes a radial surface having said tufts thereon and a handle portion so that when the projection is assembled and the edges thereof joined, the three-dimensional design will be complete.
Patent CA-2133256-C (CA)
Title: Automatic valve assembly
Inventor: SAADI ROBERT E
IPC: E03D5/10
Filed: 1994-09-29
Granted: 2000-06-27
Abstract: A valve assembly is disclosed which is adapted to fit existing valve bodies. A flexible diaphragm assembly positioned within the valve body seals against a cylindrical barrel of the valve body. A central tube positioned within the central barrel defines a bypass passage extending from an upper chamber above the flexible diaphragm assembly and communicating with a bypass orifice. A sealing mechanism operated by an automatic control mechanism is adapted to selectively seal the bypass orifice. The automatic control mechanism includes a proximity sensor.
Patent CA-2133489-C (CA)
Title: Apparatus and method for continuous high-volume steam cooking
Inventor: LEDET BRENT A
IPC: A23L5/10
Filed: 1994-10-03
Granted: 2004-01-27
Abstract: An improved apparatus and method for uniformly cooking thick layers of food product in a saturated steam environment. A foraminous conveyor belt transports a thick layer of food product into a walled cooking chamber open at its ends. The walls trap pure saturated steam to the exclusion of air in the upper region of the chamber. A  pressurized source of cooking energy supplies steam through a network of steam pipes situated just below the level of the belt along its carryway through the upper region of the cooking chamber. The pipes, which span the width of the conveyor belt, include small, restricted openings uniformly distributed along the pipes. The openings form steam outlets. The pipes are oriented with the steam outlets facing the conveyor belt. Saturated steam is emitted through the outlets directed through the foraminous conveyor belt at a velocity great enough to penetrate the thick product layer to cook even the innermost product within the thick layer, thereby improving the uniformity of the cook. The thick product layer slows the steam as it penetrates the layer to prevent the formation of turbulent flow paths that could draw unwanted air into the 212°F (100°C) saturated steam cooking region. An S-shaped back-flip in the conveying path repositions the product on the belt to further improve cooking uniformity.
Patent CA-2134484-C (CA)
Title: Replaying of messages between hearing impaired callers using keyboards and other callers
Inventor: MILLIOS WILLIAM L
IPC: H04M3/42
Filed: 1994-10-27
Granted: 1998-06-16
Abstract: A call between a caller using a telephone device for the deaf (TDD)  and another including a TDD user is connected by   automatically prompting the TDD caller for calling   information,   parsing   the   received   calling information to determine a forward number, and routing the call to one of a number of communication assistants.  One embodiment  involves  storing  the  forward  number  before routing the call so the communications assistant can press a single button to connect the call.  Another embodiment entails connecting the call automatically routing the call to the communications assistant.
Patent CA-2134611-C (CA)
Inventor: YARWOOD RICHARD JOHN
IPC: A61K9/26
Filed: 1994-10-28
Granted: 2002-12-24
Abstract: A process for the preparation of an oral solid rapidly disintegrating dosage form of a pharmaceutically active substance which has an unacceptable taste which process comprises forming a solution or a suspension in a solvent of a form of the pharmaceutically active substance which is less soluble in water and more palatable than the form with the unacceptable taste together with a water-soluble or water-dispersible carrier material, forming discrete units of the suspension or solution and removing the solvent from the discrete units under conditions whereby a network of the carrier material carrying a dosage of the less soluble and more palatable form of the pharmaceutically active substance is formed.
Patent CA-2135599-C (CA)
Title: Absorbent article having longitudinal side margins with tucks
Inventor: TAYLOR JO ANN LEE
IPC: A61F13/472
Filed: 1993-04-30
Granted: 1993-11-25
Abstract: An absorbent article, such as a sanitary napkin, having longitudinal side margin s with pleats or tucks is provided. The tucks cause the absorbent article to assume a curved, body-conforming shape, and provide the absorbent article with sides that stand up to serve as a barrier to soiling of the wearer's undergarments.
Patent CA-2143070-C (CA)
Inventor: MODI PANKAJ
IPC: A61K47/30
Filed: 1995-02-21
Granted: 2001-12-18
Abstract: A controlled release oral formulation for use with a variety of drugs, e.g. anti-Parkinsonian, cardiovascular and anti-epileptic drugs are formed in liquid suspension form. The ingredients in the suspension are water, an edible oil and a stabilizer for the liquid suspension, at least one pharmaceutically active ingredient, at least two water soluble biodegradable polymers, and optionally with at least one antioxidant to prevent degradation and oxidation of the pharmaceutically active ingredients. Suitable polymers are polysucrose, copolymer of sucrose and epichlorohydrin, hydroxyethyl cellulose hydroxypropyl-ethyl cellulose, hydoxypropyl-methyl cellulose, gelatine, starch, modified crosslinked starch, polyethyleneimine, methoxypolyethylene glycol, polyethylene oxide, cellulose acetate, polyvinyl alcohol, sodium alginate, N,N-diethylaminoacetate, block copolymers of polyoxyethylene, block copolymers of polyoxypropylene, a mixture of hydroxyethyl cellulose and sodium carboxymethyl cellulose, and combinations thereof. Suitable edible oils are mineral oil, soyabean oil, coconut oil, vegetable oil and sunflower oil and combinations thereof. Suitable stabilizers are oleic acid, cholic acid, deoxycholic acid, pharmaceutically acceptable salts thereof and combinations thereof.      Suitable antioxidants are tocopherol, deteroxime mesylate, methyl paraben and ascorbic acid.      A typical teaspoon dose of anti-Parkinson liquid suspension contains 15-150 mg carbidopa, 50-1500 mg levodopa, 100-300 mg of a combination of polyvinyl alcohol and polysucrose, 10-50 mg oil, 5-15 mg antioxidant, e.g. vitamin E, 5-20 mg stabilizer, 10-15 mg colorants, 10-15 mg natural flavouring agents and 5 ml water.
Patent CA-2145311-C (CA)
Title: Low friction solenoid actuator and valve
Inventor: RIEFLER ROGER G
IPC: H01F7/16
Filed: 1993-09-21
Granted: 2002-07-30
Abstract: An actuator (24) for a valve (10) includes a housing tube (26) enclosing an internal cavity (48). A plunger (42) is mounted for movement in the internal cavity. The plung-er includes four slots (50). Rollable spheres (58) are posi-tioned in the slots between staked areas (62). A magnetic field created by electrical current passing through a coil (34) moves the plunger downward to open fluid flow through a control element (20). Flow through the control element enables controlled flow from an inlet (14) to an outlet (16) of the valve. The actuator construction provides for substantial elimination of sliding friction acting on the plunger, reduces hysteresis and the amount of power re-quired to move the plunger, and facilitates accurate control of fluid flow rate through the control element.
Patent CA-2146835-C (CA)
Title: Heating time control apparatus and method thereof for microwave oven
Inventor: CHAI EUN SIK
IPC: H05B6/68
Filed: 1995-04-11
Granted: 1999-09-28
Abstract: An improved heating time control apparatus and method thereof for a microwave oven capable of advantageously computing an optimum cooking time without controlling the amount of food to be cooked. The invention includes: a sensor for detecting a predetermined physical, i.e. parameter, variation of the food being heated and for converting the physical variation into a predetermined electrical signal; a converter for comparing the physical variation outputted from the sensor with an initial value and for converting the physical variation into the varying ratio which is referenced to the initial value; a heating time detecting circuit for setting a first heating time obtained while the varying ratio outputted from the converter becomes a minimum value and for setting a time obtained while the varying ratio varies from the minimum value to a predetermined value as a second heating time; an operator for computing a predetermined value varied as much as a predetermined value in determining the second heating time using the minimum value of the varying ratio outputted from a storing circuit, the first heating time and a first coefficient outputted from the storing circuit and for producing a third heating time using the first and second heating times outputted from the storing circuit and a second coefficient outputted from a coefficient storing circuit; and a counter for counting the first and second heating times outputted from the heating time detecting circuit and a third heating time outputted from the operator.
Patent CA-2148597-C (CA)
Title: Method and apparatus for transporting solid particles from one chamber to another chamber
Inventor: HYPPAENEN TIMO
IPC: B65G53/16
Filed: 1993-11-09
Granted: 2000-10-03
Abstract: Solid particles are transported from a first chamber (e. g. combustion chamber of a fluidized bed reactor) to an adjacent second chamber (e. g. a transporting and/or processing chamber) by providing a solid flow seal, a controllable solid flow valve, or both in a partition between the chambers. Transporting gas is introduced into the first chamber to transport solid particles as multiple solid flows from the first chamber to the second chamber.      A number of narrow passages in the partition wall disposed one on top of the other, and having a height to length ratio less than 0.5, height less than 50 mm, act as the solid flow seal and controllable solid flow valve in the partition. The transporting gas may be introduced through the bottom of the first chamber, a side wall opposite to the partition wall, or both, and the partition wall may be lined with refractory adjacent the first chamber with passages in the refractory lining being made of combustible material which is burned away during heating of the refractory lining. The passages may also slant upwardly slightly from the first chamber to the second chamber, e.g. about 15 degrees.
Patent CA-2170189-C (CA)
Inventor: KUO CHING-CHUAN
IPC: E05C1/14
Filed: 1996-02-23
Granted: 1999-08-03
Abstract: A lock set for a door has a cylindrical spindle integrally coupled with a knob and containing a slide plate which can be actuated to lock and unlock the cylindrical spindle against rotation.  The cylindrical wall of the spindle is provided with two diametrically opposing grooves which extend axially from one end thereof to a predetermined depth and which are opened at the one end so as  to facilitate installation of the slide plate in the spindle.  The slide plate has two opposing lugs for insertion into the grooves.