baber/WOPTO huggingface dataset:
Patent CA-2127645-A1 (CA)
Title: Semiconductor device with an most provided with an extended drain region for high voltages
Inventor: LUDIKHUIZE ADRIANUS W
IPC: H01L29/78
Filed: 1994-07-08
Abstract: Abstract: Semiconductor device with an MOST provided with an extended drain region for high voltages.     The invention relates to a semiconductor device with a semiconductor body (1) comprising a surface region (3) of a first conductivity type which adjoins a surface and in which a field effect transistor is provided which comprises a channel region (7) with a gate electrode (8) above it, and a source region (4), a drain region (5) and a drain extension region (6). The drain extension region (6) serves to improve the drain breakdown voltage of the field effect transistor. In practice, a high breakdown voltage is accompanied by a comparatively high on-resistance of the transistor. According to the invention, the drain extension region (6) has a geometry different from that in known transistors, i.e. the drain extension region (6) comprises a number of zones (25) of the second conductivity type which extend from the channel region (7) to the drain region (5) and which have a width (26) and doping concentration such that, when the voltage difference across the blocked pn junction (28) between the surface region (3) and the drain extension region (6) is increased, the drain extension region (6) is fully depleted at least locally before drain breakdown occurs. The measure according to the invention renders it possible to choose the number and the width (26) of the zones (25) as an additional parameter of the device. It is a surprise to find that devices according to the invention have comparatively high drain breakdown voltages and comparatively low on-resistances which cannot be realised with a continuous drain extension region (6).
Patent CA-2128805-A1 (CA)
Title: Decolorization of waste paper with selected amines
Inventor: HAMILTON GLYNN A
IPC: D21C9/10
Filed: 1994-07-26
Abstract: ABSTRACT    A method for bleaching pulp containing pulp from colored waste paper, wherein the method comprises bleaching the pulp with a bleaching chemical, especially sodium hydrosulfite, in the presence of a selected ethoxylated amine.
Patent CA-2130870-A1 (CA)
Inventor: MENARD HUGUES
IPC: B01J23/755
Filed: 1994-08-25
Abstract: Disclosed herein is a process of treating a particulate material, in which the particles are subjected to motion inside a chamber maintained under vacuum and wherein the vapour of a catalytic metal destined to coat the particles is present, the process comprising the steps of: a) effecting a high vacuum in the chamber; b) evaporating the catalytic metal by heating the catalytic metal; c) fluidizing the particles to be coated by placing the particles in an open container and shaking the container by connecting the container to a source of low frequency vibrations; wherein the particles are fluidized in the chamber and are contacted with the catalytic metal vapour which condenses onto the particles to coat the particles.      Further disclosed herein is an apparatus useful for carrying out the process of the present invention.
Patent CA-2131557-A1 (CA)
Title: Separator device
Inventor: POTTER MICHAEL S
IPC: B01D33/11
Filed: 1993-02-15
Abstract: ABSTRACT OF THE DISCLOSURE      A separator device for separating solid material from liquid, particularly in sewage, has an outer casing with respective solid material and liquid outlets, a drum rotatable within the casing and formed of mesh panels for flow of liquid therethrough, spirals within the drum for moving the solid material within the drug, upon rotation, towards an outlet therefrom positioned above the solid material outlet of the casing, the spirals being each supported at their outer periphery by the periphery of the drum and at their inner periphery by an inlet feed tube and/or a central driven shaft of the drum, and in-line bearings around the shaft and a journal outside respective opposite ends of the casing.
Patent CA-2133709-A1 (CA)
Inventor: WIEDENHOEFER KURT
IPC: D04B35/04
Filed: 1994-10-05
Abstract: A latch needle for a textile machine includes a needle shank having a sawslot defined in the needle shank by two facing cheeks forming part of the needle shank; a pivot pin supported by the cheeks and extending transversely to the length dimension of the needle shank; and a latch accommodated in the sawslot.  The latch includes a latch shank having an upper side and an opposite lower side.  There is further provided a bearing bore in the latch shank.  The bearing bore is traversed by the pivot pin to provide for a pivotal movement of the latch relative to the needle shank.           The bearing bore is spaced from the upper side at a first distance and from the lower side at a second distance; the first and second distances have unlike lengths.
Patent CA-2135133-A1 (CA)
Inventor: LACHAPELLE LUC
IPC: A63C17/20
Filed: 1994-11-04
Abstract: An accessory device for a roller skate is disclosed, for use to block the wheels of this roller skate. This device comprises a plurality of elongated members that are made of non-slippery material  and sized to  snugly fit transversely between two of the wheels. These members are linked together, preferably by an elastic rope which is forming a closed loop. The device can be secured to the frame of the roller skate whenever required by placing each member between two of the wheels to prevent the same from rotating.  This device is very advantageous because it is inexpensive and very simple to install on a roller skate. It is also very light in weight and compact, thereby making it easy to carry.
Patent CA-2135432-A1 (CA)
Inventor: STEEBY JON A
IPC: F16H61/32
Filed: 1994-11-09
Abstract: A shifting mechanism (25) is disclosed for shifting a shift rail (11) in a transverse (Y-Y) direction. The mechanism includes a shift finger (23) movable in both the transverse and axial (X-X) directions. The shift rail (11) defines afirst blocker surface (59), and axially adjacent thereto a recess (63) in which is disposed a compression spring (71). When the shift finger (23) is positioned in a first axial position (FIG. 6), the shift finger engages the spring (71), and movement of the shift finger in the first transverse direction preloads the spring before the shift rail moves in the first transverse direction. In a second axialposition (FIG. 9), the shift finger engages the first blocker surface (59), whereby movement of the shift finger in the first transverse direction results in corresponding movement of the shift rail in the first transverse direction.
Patent CA-2137100-A1 (CA)
Title: Pumper system for in-situ pigging applications
Inventor: DELORME RONALD WILLIAM
IPC: B08B9/04
Filed: 1994-12-01
Abstract: A pumper system is adapted to enable pumps to be switched between parallel operation, for the high flow conditions normally desired for in-situ pigging operations within a line to be cleaned, and series operation, for the high pressure conditions needed in the event the pigging device becomes obstructed in the line.
Patent CA-2138997-A1 (CA)
Title: Vaccine composition containing adjuvants
Inventor: PRIEELS JEAN-PAUL
IPC: C12N15/00
Filed: 1993-06-15
Abstract: The present invention provides vaccine compositions comprising 3 De-O-acylated monophosphoryl lipid A and QS21. The vaccines compositions are potent inducers of CTL and .gamma. IFN responses.
Patent CA-2140242-A1 (CA)
Title: A water distillation system
Inventor: TAJER-ARDEBILI DAVOUD
IPC: C02F1/04
Filed: 1993-07-23
Abstract: A water distillation system (10) is disclosed. The system (10) includes a boiling chamber (11) and a condensation chamber (12). Water is fed via an inlet pipe (13) to a degassing chamber (15) where volatile gases are removed from the water. The water is evaporated in the boiling chamber (11) and the vapour is in turn condensed in the condensing chamber (12). The distilled water is collected in a water storage tank (30) and is used with a pump (28) and entrainment device (27) to provide a substantial vacuum within the system (10).
Patent CA-2144573-A1 (CA)
Inventor: HUENNIGER EDWARD A
IPC: F04C29/00
Filed: 1995-03-14
Abstract: An oil management system for a refrigeration system having a screw compressor for pressurizing and circulating refrigerant through the system and an evaporator having a shell enclosing a chamber for allowing phase change of the refrigerant.   A suction line is provided to fluidly connect the evaporator chamber to the inlet side of the compressor.  The suction line is sealed about an opening in the shell and has a distal end projecting into the chamber below the seal.  A reservoir is positioned within the chamber, below the suction line.   The reservoir is employed for collecting lubrication oil migrating down the suction line during low load operation of the compressor so that when the level of oil in the reservoir reaches a predetermined level, the opening in the distal end of the line  will  be  restricted  thereby  increasing  the  flow velocity proximate thereto causing reintroduction of the oil into the compressor.
Patent CA-2147638-A1 (CA)
Title: Platinum-rhodium-iron catalyst
Inventor: DELUCA KAREN ESPINOSA
IPC: B01J32/00
Filed: 1993-10-20
Abstract: A platinum-rhodium-iron catalyst composed of about 40 atom % to about 60 atom % platinum, about 10 atom % to about 20 atom % rhodium, and about 20 atom % to about 50 atom % iron maintains a mass activity of at least about 40 mA/mg plati-num for at least 10,000 hours of fuel cell operation.
Patent CA-2148341-A1 (CA)
Inventor: YE SHEN
IPC: H01P7/08
Filed: 1995-05-01
Abstract: Microstrip/stripline transmission lines have a plurality of strips on a substrate where strips are separated by a gap.  This arrangement results in a reduced maximum current density compared to previous transmission lines with the same power handling capability.  The strips can have the same width or different widths.  The gaps can have the same width or different widths.  The transmission lines can be used in filters and resonators and can be made of high temperature superconductive materials.
Patent CA-2149011-A1 (CA)
Inventor: SERRE JEAN-CLAUDE
IPC: B65B41/02
Filed: 1994-05-06
Abstract: 2149011 9426616 La présente invention concerne un flan ou découpe en feuille de carton ou carton ondulé pour la réalisation d'un emballage de nappes superposées de récipients, un tel emballage ainsi qu'un procédé et un dispositif d'emballage avec un tel flan. L'emballage (35) comprend deux faces latérales (41, 42) en forme de T de hauteur sensiblement égale à la hauteur des nappes, les bords latéraux des jambes (11, 12) des deux faces latérales en vis à vis étant reliées entre elles par deux parois (52, 53) transversales perpendiculaires au plan desdits jambes centrales.
Patent CA-2152967-A1 (CA)
Title: High Frequency Drop-On-Demand Ink Jet System
Inventor: HOISINGTON PAUL A
IPC: B41J2/055
Filed: 1995-06-29
Abstract: In the high-frequency drop-on-demand ink jet system described in the specification, a variable impedance characteristic of an ink jet orifice is utilized to provide maximum drop ejection rates exceeding the maximum rates possible with constant orifice impedance characteristics. In one embodiment, successive negative, positive and negative pulses are applied to eject each drop in order to utilize a nonlinear orifice impedance characteristic, permitting maximum ink drop ejection rates exceeding 10-20 kHz and up to 150-200 kHz, and, in another embodiment, the ink jet orifice is designed with a bellmouth shape arranged to enhance the variable impedance characteristic.\!
Patent CA-2153190-A1 (CA)
Inventor: CASTEL YVON
IPC: F04F5/10
Filed: 1995-07-04
Abstract: Méthode de pompage par échange direct d'énergie au cours de laquelle un fluide moteur est envoyé sous forme d'un ou plusieurs jets par intermittence,vers un fluide primaire. Dispositif de pompage comprenant une pièce creuse et une pièce de distribution munie chacune d'orifices (Oi) et (Ei). Une pièce mobile en rotation est interposée entre les deux pièces creuses et de distribution, elle est munie d'un moyen d'obturation de façon à générer des jets de fluide moteur de manière intermittente vers un fluide à transporter.
Patent CA-2154088-A1 (CA)
Inventor: ROTHSCHILD WAYNE H
IPC: G07D9/00
Filed: 1995-07-18
Abstract: The improved coin escalator of the invention includes a smoothly curved coin transport channel positioned on the outside circumference of an arcuate back plate.  The channel is defined by spacer plates which are attached to the outer curved surface of the back plate and edge plates integral with the spacer plates.  Downtime of the gaming device is minimized because the smoothly curved shape of the transport channel prevents coins from becoming jammed therein.
Patent CA-2157117-A1 (CA)
Inventor: DESAI MANOI C
IPC: A61K31/435
Filed: 1993-12-10
Abstract: The present invention relates to novel spirocyclic piperidine derivatives and related compounds and, specially, to compounds of formula (I) wherein X, Z, Y, R1, R2, R3, R4 and m are as defined in the specification ,and to intermediates used in the synthesis of such compounds. The novel compounds of formula (I) are useful in the treatment of inflammatory and central nervous system disorders, as well as other disorders.
Patent CA-2158248-A1 (CA)
Title: Acidic liquid detergent compositions for bathrooms
Inventor: CILLEY WILLIAM AJALON
IPC: C11D1/72
Filed: 1994-03-07
Abstract: Detergent compositions comprising a surfactant system that is either (1) a mixture nonionic and zwitterionic detergent surfactants; (2) a mixture of nonionic and amphoteric (non-zwitterionic) detergent surfactants; or (3) short chain nonionic detergent surfactant, the nonionic detergent surfactants preferably being short chain and/or having peaked distribution; optional hydrophobic cleaning solvent; and polycarboxylate, especially dicarboxylate, detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5, preferably from about 2 to about 4 when the dicarboxylate builder is used. The compositions are in the form of aqueous liquids. Short chain peaked distribution nonionic detergent surfactants provide surprisingly superior sudsing characteristics.
Patent CA-2158356-A1 (CA)
Title: Method and apparatus for utilizing multiple spreading codes in a communication system
Inventor: KOTZIN MICHAEL DALE
IPC: H04B1/707
Filed: 1995-01-09
Abstract: A communication system utilizes multiple spreading codes to transmit high data rate information. The system codes high data rate user information (201) and partitions the coded information (202) into blocks comprised of two bits, B1 and B2. Based on the representation of bits B1 and B2, the system chooses one of a possible four spreading codes (W1 and W2 and their phase reversals W1' and W2') to be utilized for transmission. Once received, the transmitted signal is input into correlators (306, 309) specific to each spreading code W1 and W2, and the maximum absolute value output from the correlators (306, 309) is determined. From this determination, the transmitted spreading code W1, W2, W1' or W2' is determined. The use of multiple spreading codes allows for the transmission of high data rate information without altering the wireless air interface of the communication system.
Patent CA-2160489-A1 (CA)
Inventor: CAMPANELLA DAVID A
IPC: C08L75/06
Filed: 1995-03-21
Abstract: A vacuum-assisted transfer molding process for preparing a fiber-reinforced thermosetting polyester composite, the said composite comprising reinforcing fiber in excess of 30 wt %, based upon the weight of the composite, in a thermoset polyester matrix. The said thermoset polyester matrix is prepared from a one-phase matrix precursor comprising, in weight percent based upon the weight of the matrix precursor, from: (a) 20 to 60 % of an unsaturated polyester resin with a molecular weight/double bond factor between 150 and 190; (b) 30 to 70 % of a reactive monomer; (c) 1 to 25% of a thermoplastic polymer which is miscible in a blend of the polyester resin and the reactive monomer; and (d) an initiating amount of a free radical initiator. Application to the manufacture of molded articles, such as boat hulls or truck body panels, comprising a composite made according to the above process, a gel coat and a skin laminate.
Patent CA-2161334-A1 (CA)
Title: Hiv protease inhibitors useful in the treatment of aids
Inventor: VACCA JOSEPH P
IPC: C07D417/12
Filed: 1994-04-26
Abstract: Compounds of formula (I), where R1 and R2 are in-dependently hydrogen or optionally-substituted C1-4alkyl or aryl, and R1 also forms a heterocycle or heterocycle-C1-4alkyl, are HIV protease inhibitors. These compounds are useful in the prevention or treatment of infection by HIV and in the treatment of AIDS, either as compounds, phar-maceutically acceptable salts. pharmaceutical composition ingredients, whether or not in combination with other an-tivirals, immunomodulators, antibiotics or vaccines. Meth-ods of treating AIDS and methods of preventing or treating infection by HIV are also described.
Patent CA-2161890-A1 (CA)
Inventor: DUCHARME CHRISTOPHER A
IPC: G06F17/50
Filed: 1994-04-11
Abstract: A contact lens (30) having a smooth surface (55, 65) is made through the use of a computer implementing a spline approxima-tion of corneal topography (145). Piecewise polynomials approximating the corneal to-pography (145) have equal first and second derivatives where they join. A curve (50) representing the central optical portion of the lens and the piecewise polynomial (70) adjacent to the central optical portion curve (50) have an equal first derivative where they join. A contact lens (30) is cut cor-responding to the smooth surface (55, 65) defined by the piecewise polynomials.
Patent CA-2163700-A1 (CA)
Inventor: IMAI SHINJIROU
IPC: C07K14/605
Filed: 1995-11-24
Abstract: In the method for the extraction of glicentin or a glicentin analogous substance from the cells of a transformed microorganism having incorporated therein an expressible gene encoding\glicentin or a glicentin analogous substance, the extraction is carried out using an aqueous solution of an inorganic acid and/or an organic acid.
Patent CA-2165124-A1 (CA)
Title: Enhanced efficiency nozzle for use in fluidized catalytic cracking
Inventor: HARUCH JAMES
IPC: B05B1/26
Filed: 1995-12-13
Abstract: In fluidized catalytic cracking, enhanced efficiency is produced through the use of a spray nozzle having two transversely elongated discharge orifices for effecting fine atomization of liquid hydrocarbon feed as the latter is sprayed from the nozzle. The orifices preferably are inclined so as to produce a converging spray but can be inclined to produce a diverging spray or a substantially flat spray. Alternative forms of pressurized air atomizing heads are disclosed.
Patent CA-2165893-A1 (CA)
Title: Visual application partitioning for creating distributed object oriented applications
Inventor: MCDONALD RICHARD DENISON
IPC: G06F9/44
Filed: 1995-12-21
Abstract: A software partitioning tool is disclosed. Based on a visual display of an application that shows program objects and the connections or interactions between the objects, an internal representation of the application is defined. As the user interacts with the visual display of the application, creating new partitions and relocating program objects in the new partitions, the internal representation of the display is constantly updated. Once a connection between program objects crossespartition boundaries, it is redefined in the internal representation as a distributed interaction (a connection), and representative server and client stubs are defined. At a number of points, the user also has the opportunity to set middleware protocols. Once the user commits to a distribution design, a code generator in the tool generates the actual server and client stubs for all distributed connections based on the definitions in the internal representation of the application.
Patent CA-2167121-A1 (CA)
Title: Reduced size apparatus for the centrifugal separation
Inventor: VADO GIOVANNI ANTONIO
IPC: B04B5/00
Filed: 1996-01-12
Abstract: The present invention relates to a reduced size apparatus (1) for the centrifugal separation, comprising a housing (2), motor means (3) coupled to said housing (2) and provided with a rotary shaft (6), cartridge means (9; 13), provided within said housing (2) and coupled with said rotary shaft (6), at least a first feeding channel (12) for the liquid to be undergo to the centrifugal treatment from outdoor within said cartridge means, at least a second channel (7) through said rotary shaft (6), communicating with said cartridge means (9; 13), and at least a third channel (8) for the ejection of the liquid, communicating with said second channel (7).
Patent CA-2168382-A1 (CA)
Title: Method for the extraction of periplasmic proteins from prokaryotic microorganisms in the presence of arginine
Inventor: LEGOUX RICHARD
IPC: C07K14/61
Filed: 1996-01-30
Abstract: The invention relates to the use of arginine as an agent  for the extraction of recombinant periplasmic proteins. The invention further relates to a method for the extraction of a periplasmic protein of interest, which consists in:   (1) suspending the pellet of cells or cell debris from  cells  originating  from  the  culture  of  a prokaryotic microorganism,  transformed by means of an expression vector containing a gene coding for the said protein and means for its expression in the periplasm of the said microorganism,  in a buffer solution containing arginine; and (ii)  recovering  the  protein  of  interest  in  the supernatant  of  the  bacterial  suspension  thereby obtained.
Patent CA-2168679-A1 (CA)
Title: Box car lock
Inventor: KHALSA EKONGKAR S
IPC: E05B65/14
Filed: 1996-02-02
Abstract: A removably securable locking device especially suitable for use with the loading door of a railroad freight car whereby the rotatable door handle which latches the door in a closed position is secured against unauthorized movement by a two-piece locking device wherein a handle securing portion of an insertion piece encircles a part of the door handle, and then telescopes into a receiving piece which engages a portion of the door gear box such that upon securing the two pieces of the locking device in telescoped engagement, the door handle is locked against movement until the two pieces are moved out from each other a distance sufficient to release the door handle from engagement.
Patent CA-2169231-A1 (CA)
Title: Bis(biaryl) compounds as inhibitors of leukotriene biosynthesis
Inventor: FRIESEN RICHARD
IPC: C07D311/16
Filed: 1996-02-09
Abstract: Compounds having the Formula I:          Ar1Ar2-X-Ar3Ar4 are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, glomerular nephritis, hepatitis, endotoxemia, uveitis, and allograft rejection and in preventing the formation of atherosclerotic plaques.
Patent CA-2170238-A1 (CA)
Inventor: OUZOUNIS DIMITRIOS
IPC: G01N21/91
Filed: 1994-08-16
Abstract: Un procédé permet de différencier selon leur type des résidus de matières alimentaires organiques sur des surfaces dures par application sur ladite surface dure d'une solution qui contient une combinaison d'au moins deux colorants dont au moins un a un caractère hydrophile et au moins un a un caractère hydrophobe. Le type des résidus est ensuite optiquement déterminé grâce à leur coloration spécifique. L'invention concerne en outre des compositions liquides de mélanges de colorants et leur utilisation.