baber/WOPTO huggingface dataset:
Patent CA-2211837-A1 (CA)
Title: An improved solar energy concentrating system having replaceable reflectors
Inventor: GERICS LOUIS J
IPC: F24S23/74
Filed: 1996-01-25
Abstract: The present invention relates to an improved solar concentrating system incorporating replaceable solar energy concentrating reflectors. Prior systems typically required a structurally stable solar energy concentrating panel. The present invention uses a combination of structurally stable backing panels (10) and flexible solar energy concentrating reflectors (20), mounted on a collector support means (42, 44, 46, 48), to significantly reduce the ease and cost of replacing reflectors.
Patent CA-2213124-A1 (CA)
Inventor: MISSLITZ ULF
IPC: C07D261/04
Filed: 1996-02-13
Abstract: The invention concerns benzoyl derivatives of formula (I) in which the substituents have the following meanings:      L and M represent hydrogen, C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkinyl, C1-C4 alkoxy (these groups being optionally substituted by one to five halogen atoms or C1-C4 alkoxy), halogen, cyano, nitro, a -(Y)n-S(O)m R7 or -(Y)n-CO-R8 group;      Z represents a five to six-membered heterocyclic saturated or unsaturated group containing one to three heteroatoms selected from the group comprising oxygen, sulphur and nitrogen and which can optionally be substituted by halogen, cyano, nitro, a -CO-R8 group, C1-C4 alkyl, C1-C4 alkyl halide, C3-C8 cycloalkyl, C1-C4 alkoxy, C1-C4 alkoxy halide, C1-C4 alkyl thio, C1-C4 alkyl thio halide, di-C1-C4 alkyl amino, phenyl optionally substituted by halogen, cyano, nitro, C1-C4 alkyl or C1-C4 alkyl halide, or an oxo group which can be present in the tautomeric form as a hydroxy group, is substituted or, together with a condensation-bound phenyl ring which is optionally substituted by halogen or, cyano, nitro, C1-C4 alkyl or C1-C4 alkyl halide, with a condensation-bound carbocycle or with a condensation-bound second heterocycle which can optionally be substituted by halogen, cyano, nitro, C1-C4 alkyl, di-C1-C4 alkyl amino, C1-C4 alkoxy, C1-C4 alkoxy halide or a C1-C4 alkyl halide, forms a bicyclic system; Y represents O or NR9; n is 0 or 1; m is 0, 1 or 2; R7 represents C1-C4 alkyl, C1-C4 alkyl halide or NR9R10; R8 represents C1-C4 alkyl, C1-C4 alkyl halide, C1-C4 alkoxy or NR9R10; R9 represents hydrogen or C1-C4 alkyl; R10 represents C1-C4 alkyl; Q represents a cyclohexane-1,2-dione ring connected at position 2 and of formula (II) in which R1, R2, R4 and R6 represent hydrogen or C1-C4 alkyl, R5 represents hydrogen, C1-C4 alkyl or a -COOR10 group, R3 represents hydrogen, C1-C4 alkyl, C3-C6 cycloalkyl, these groups optionally including one to three of the following substituents: halogen, C1-C4 alkyl thio, C1-C4 alkoxy, or R3 represents tetrahydropropanyl-3, tetrahydropropanyl-4 or tetrahydrothiopyranyl-3, or R3 and R5 together form a bond or a three to six-membered carbocyclic ring. The invention also concerns standard agricultural salts of compounds of formula (I) usually utilized in agriculture.
Patent CA-2215466-A1 (CA)
Title: Latch and lock system
Inventor: MCFARLAND DONALD J
IPC: E05B65/19
Filed: 1997-09-15
Abstract: A latch and lock system employing a rotary trip pawl/latch assembly actuated by impingement of a disconnected pushbutton trip arm upon a cam attached to the trip pawl mounting pin. Cross rod connection of the cams of laterally opposed latch assemblies provides dual latch and lock points for a single compartment lid operable through either latch assembly. The lack of a permanent mechanical connection between the pushbutton trip arm and the cam of the latch assembly insulates the latch assembly from forceful attack upon the pushbutton.
Patent CA-2216831-A1 (CA)
Title: Bucket for a mechanical excavator
Inventor: RUFF THOMAS
IPC: E02F3/40
Filed: 1996-03-28
Abstract: A bucket (1) for detachable mounting on the jib head of a mechanical excavator comprises three shells (2, 31, 32) which can be displaced relative to one another and are guided one against the other. The width of the bucket (1) can be steplessly varied between a minimum value and a maximum value. To actuate the side shells (31, 32) and guide them in parallel at each distance, at least two double scissor systems (5, 6; 7, 8) are provided for each shell.
Patent CA-2217372-A1 (CA)
Title: Method and device for processing arbitrary 3d shaped surfaces by means of a laser, in particular for polishing and texturing workpieces, and for producing sealing surfaces on dies
Inventor: BESTENLEHRER ALEXANDER
IPC: B23K26/06
Filed: 1996-04-09
Abstract: The aim of the present invention is to provide a method and a device for processing and, in particular, for polishing and texturing workpieces, by means of which arbitrary 2D and/or 3D shaped surfaces, can be processed. The processing is performed by means of a laser beam. The actual surface shape and surface texture are determined before processing by means of a 3D contour-measuring device. Processing parameters are calculated from the desired surface shape and the surface shape actually measured, and the processing is carried out subsequently as appropriate.
Patent CA-2217721-A1 (CA)
Inventor: MANNING JAMES E
IPC: A61M60/833
Filed: 1996-04-12
Abstract: Ce procédé de traitement d'un sujet subissant un arrêt cardiaque consiste à bloquer l'aorte descendante (11) du sujet et à introduire par perfusion, dans la crosse (20) de cette aorte, une solution protectrice en une quantité efficace pour amener de l'oxygène au coeur dudit sujet. La perfusion se déroule de façon que la solution protectrice s'écoule dans l'aorte selon un rythme pulsatif. L'appareil (40), qui permet ce traitement, comprend un réservoir (41) de solution protectrice, un dispositif de libération (52) qui libère la solution protectrice dans l'aorte du sujet et qui est en liaison fluidique avec le réservoir (41), et un dispositif pulsant (65), connecté à ce dispositif de libération (52), qui permet à la solution protectrice d'être libérée dans l'aorte selon un rythme pulsatif.
Patent CA-2218675-A1 (CA)
Title: Objective lens having a doublet lens with high numerical aperture
Inventor: YAMAMOTO KENJI
IPC: G11B7/1374
Filed: 1997-10-21
Abstract: An objective lens having a doublet structure and a number of apertures of 0.7 or more and an optical pickup apparatus having  the  objective  lens  to  be  adaptable  to  a  optical recording medium having a high information recording density, the objective lens being structured such that at least one side is formed into a aspheric surface and the lens elements are made of low-diffusion glass having an Abbe's number of 40 or greater.
Patent CA-2219406-A1 (CA)
Title: Device for transdermal electrotransport delivery of fentanyl and sufentanil
Inventor: PHIPPS JOSEPH B
IPC: A61P25/04
Filed: 1996-06-05
Abstract: The invention provides an improved electrotransport drug delivery system for analgesic drugs, namely fentanyl and sufentanil. The fentanyl/sufentanil is provided as a water soluble salt (e.g., fentanyl hydrochloride) dispersed in a hydrogel formulation for use in an electrotransport device (10). In accordance with the invention, the concentration of fentanyl/sufentanil in the donor reservoir (26) solution is maintained above a predetermined minimum concentration, whereby the transdermal electrotransport flux of fentanyl/sufentanil is maintained independent of the concentration of fentanyl/sufentanil in solution.
Patent CA-2221312-A1 (CA)
Inventor: WATSON WILLIAM G A
IPC: G09D3/12
Filed: 1997-11-17
Abstract: The Perpetual Cyclic Combination Digital Calendar and Clock of the present invention includes a planar, visible, liquid crystal display screen having a width dimension and a height dimension, wherein the width dimension of the display screen is at least 4 inches and the height dimension of the display screen is at least 4 inches, and wherein the display screen is divided into first and second viewing fields for selective display of alphanumeric characters having a character height substantially corresponding to an available visible screen height for each of the fields, and wherein collectively the available visible screen height for the first and second viewing field substantially corresponds to the width and height dimensions of the display screen, a processor and screen driver for processing day, date and time information and for displaying the information on the display screen, the processor and screen driver selectively perpetually cycling the display screen between a first alphanumeric screen display and a second alphanumeric screen display.
Patent CA-2222015-A1 (CA)
Title: Method for post-mold attachment of a handle to a strain-oriented plastic container
Inventor: PICCIOLI DAVID
IPC: B29C65/66
Filed: 1996-05-21
Abstract: A method for post-mold attachment of a handle (71) to a strain-oriented plastic container body (52). The method utilizes thermal shrinkage of the oriented container body to engage the handle: for example, a highly-oriented recess (56, 58) is molded in the container body (52) and then shrunk to engage a complimentary-shaped lug on the handle (71). The method is useful for both hot-fillable and pasteurizable containers, and is particularly useful for making larger-sized containers, wherein the weight of the product and size of the container make handling and pouring difficult.
Patent CA-2224363-A1 (CA)
Inventor: PARSONS LLEWELLYN BERTRAM
IPC: B63B21/08
Filed: 1997-12-08
Abstract: A rope clamp is provided which is suitable either for use to hang adjustably an article suspended by a rope, or to act as an adjustable tie down.  The clamp has a clamping rope channel between a pair of parallel plates.  Clamping ribs are located in the rope channel to grip the rope frictionally and to narrow the channel towards its base. One plate of the pair narrows towards one end to leave exposed parts of an inner face on the other plate.  Guide to maintain the rope in the rope channel are located on the exposed parts.
Patent CA-2224991-A1 (CA)
Inventor: SYMCOX ROBERT OWEN
IPC: D04H1/00
Filed: 1996-06-13
Abstract: La présente invention se rapporte à un matériau amortissant le bruit, utilisé pour l'amortissement du bruit à l'intérieur des panneaux d'une automobile. Le matériau comporte un non-tissé avec une composition moulable d'imprégnation. Le matériau amortissant le bruit peut être moulé pratiquement à la forme du panneau associé. La composition d'imprégnation comprend des copolymères de styrène-butadiène carboxylés avec une substance minérale de remplissage, ainsi que d'autres constituants dotés de propriétés spécifiques tels que des ignifugeurs. Le non-tissé comporte au moins 10 % de fibres fusibles de polyester. On produit la composition d'imprégnation le plus facilement en combinant au moins 15 % de copolymère de styrène-butadiène carboxylé comportant plus de 55 % de styrène avec au moins 5 % de copolymère de styrène-butadiène carboxylé ne comportant pas plus de 50 % de styrène, ainsi qu'avec au moins 50 % d'une substance d'imprégnation, c'est-à-dire une substance minérale de remplissage telle que l'argile.
Patent CA-2226700-A1 (CA)
Title: Toner replenishing device and toner cartridge for use therein
Inventor: OKADA MITSUHARU
IPC: G03G15/08
Filed: 1998-01-13
Abstract: A toner replenishing device including a mounting base having a toner replenishment opening formed for replenishing a hopper with a toner, and a toner cartridge to be mountable on the mounting base at a replenishing position at which the toner can be replenished through the toner replenishment opening. the mounting base is provided with a replenishment opening shutter member, and locking means for inhibiting the turning of the replenishment opening shutter member.  When the toner cartridge is mounted at the replenishing position, locking of the locking means is released, and when the container is turned, a through-hole of the toner cartridge and the toner replenishment opening open.
Patent CA-2227567-A1 (CA)
Inventor: NEPPLE BRUCE C
IPC: H03K19/0175
Filed: 1996-09-06
Abstract: Integrated circuit design incorporates devices, e.g., a gatable pull-down FET  resistor (32), responsive to signal activity at an integrated circuit pin (22). Signal activity dictates integrated circuit functions including level-pulling functions and bus configuration functions.
Patent CA-2228501-A1 (CA)
Title: A pumping apparatus including a quick connect interface
Inventor: GUY THOMAS L III
IPC: F04B53/00
Filed: 1995-08-09
Abstract: A pump includes a quick connect interface (10) that attaches to any drink dispenser to allow the mounting of the pump without the necessity of connection devices such as threaded fittings and/or clamps. The quick connect interface includes a housing (11) having an inlet port (12) and an outlet port (13). Both the inlet and the outlet ports include a flow regulator that prevents the flow of product from the quick connect interface when the pump is removed. The housing also has a gas port (14) that connects to a gas source to deliver gas into the pump. The gas port includes a flow regulator that prevents the escape of gas from the source when the pump is removed.  Additionally, the pump includes a counter that measures the volume of fluid pumped by the pump.
Patent CA-2230396-A1 (CA)
Title: High-toughness, high-tensile-strength steel and method of manufacturing the same
Inventor: OKAGUCHI SHUJI
IPC: C22C38/00
Filed: 1998-02-24
Abstract: High-tensile-strength steel having excellent arrestability and a TS of not less than 900 MPa, as well as a method of manufacturing the same.     The steel of the invention has the following composition (% by weight): C: 0.02% to 0.1%; Si: not greater than 0.6%; Mn: 0.2% to 2.5%; Ni: greater than 1.2% but not greater than 2.5%; Nb: 0.01% to 0.1%; Ti: 0.005% to 0.03%; N: 0.001% to 0.006%; Al: not greater than 0.1%; and optional elements. Ceq of the B-free steel is 0.53-0.7%, and Ceq of the B-bearing steel is 0.4-0.58%. The microstructure of the steel may be a mixed structure of martensite (M) and lower bainite (LB) occupying at least 90 vol.% in the microstructure, LB occupying at least 2 vol.% in the mixed structure, and the aspect ratio of prior austenite grains is not less than 3.
Patent CA-2233793-A1 (CA)
Title: Feed-forward amplifier
Inventor: SAKAI KAZUHIKO
IPC: H03F1/32
Filed: 1998-04-01
Abstract: The present invention provides a feed-forward amplifier having a predistortion circuit to provide a sufficient compensation for a variation in temperature. When a predistortion circuit 3 is used to minimize distortion in a main amplifier 6, the circuit 3, a variable attenuator 4, a variable phase shifter 5, and a main amplifier 6 are located in this order and a control circuit 19 controls the variable attenuator 4 and variable phase shifter 5 so that a carrier component, that is, an input signal, in a detected distortion component decreases to a minimum. In this manner, when the gain of the main amplifier 6 varies due to a variation in temperature, the preceding variable attenuator 4 and variable phase shifter 5 compensate for the variation of the gain. The input level of the predistortion circuit 3, however, is not affected, so the relationship between output levels of the predistortion circuit 3 and main amplifier 6 remain unchanged compared to the amount prior to the temperature variation, thereby providing the same compensation effect.
Patent CA-2236399-A1 (CA)
Title: Protective suit with groin protector
Inventor: L ABBE RICHARD J
IPC: F41H1/02
Filed: 1998-04-30
Abstract: A protective suit for covering the limbs and body of an operative to shield them from the effects of explosive devices such as anti-personnel mines includes on the front thereof an upper reinforced breast plate and a lower reinforced groin plate to provide added protection to the vital organs of the wearer. In the deployed position the groin plate at its upper end overlaps the lower end of the breast plate, and the lower end of the groin plate extends in front of and below the crotch region of the wearer. The groin plate is movable upwardly to a retracted position within a pouch in front of the breast plate, and in this retracted position does not interfere with the freedom of movement of the wearer's legs.
Patent CA-2238597-A1 (CA)
Title: Method and apparatus for control of an integrated cryogenic air separation unit/gas turbine system
Inventor: DRNEVICH RAYMOND FRANCIS
IPC: F25J3/04
Filed: 1998-05-26
Abstract: A method for controlling an integrated cryogenic air separation unit (ASU)/gas turbine system which maintains peak power output in spite of ambient temperature variations.  The ratio of air flow to the ASU from a source of supplemental air and a turbine compressor is adjusted to compensate for changes in ambient air temperature and to maintain air flow to the ASU at a level which enables production of the product, a fuel stream is controlled to maintain gaseous output from a combustor at a maximum practical temperature and a flow ratio of waste nitrogen and fuel fed to the combustor is maintained substantially constant.
Patent CA-2238820-A1 (CA)
Inventor: LINDQUIST NIELS L
IPC: C07C333/00
Filed: 1996-11-25
Abstract: The invention relates to novel UVB/UVA-absorbing chromophores that are present in the natural products of a marine hydroid, and derivatives thereof, useful as sunscreening agents. Furthermore, the present invention relates to methods for protecting skin from the damaging effects of solar ultraviolet radiation.  This method comprises topically applying to the skin an effective coating of a sunscreen composition of the present invention. Additional embodiments of the invention use these natural UV-absorbing compounds, or derivatives thereof, as additives as a means of providing UV-protective plastics, paints, and waxes.
Patent CA-2239095-A1 (CA)
Inventor: O'HARA HELEN
IPC: C06B47/14
Filed: 1996-12-24
Abstract: The present invention provides a gasser solution for sensitising an emulsion to form a gassed emulsion explosive composition having a discontinuous aqueous phase comprising inorganic oxygen releasing salts, a continuous water immiscible organic phase and an emulsifier, the emulsifier comprising a headgroup having a functional moiety which is vulnerable to attack by a nitroso species and wherein the gasser solution comprises a solution of an inorganic nitrite, an ammonium species and optionally an accelerator.
Patent CA-2240022-A1 (CA)
Title: Mobile communications from computer aided dispatch system via a customer premises gateway for satellite communication system
Inventor: FARRAR SAMUEL A JR
IPC: H04B7/185
Filed: 1996-12-06
Abstract: A mobile satellite system (10) includes a satellite communication switching office (14) having a satellite antenna (22) for providing communication of satellite messages via a satellite. The mobile satellite system (10) also includes a mobile communication system (18) transmitting to and receiving messages from the mobile satellite system, and a computer aided dispatch (CAD) system sending to and receiving customer messages from the mobile communication system via the mobile satellite system. A central controller controls communication in the mobile satellite system. A customer premises gateway (CPG) system (26) provides an interface between the CAD system (28) and the central controller (12), enabling the mobile communication system (18) to transmit messages to the CAD system and enabling the CAD system to transmit the customer messages to the mobile communications system.
Patent CA-2241769-A1 (CA)
Title: Acrylic latex binders prepared with saccharide stabilizers
Inventor: FARWAHA RAJEEV
IPC: C08F20/12
Filed: 1998-06-29
Abstract: The present invention is directed to the use of nonpolymerizable, hydrophobically-modified saccharides as emulsion stabilizers during the synthesis of acrylic latexes, and coating compositions prepared with the acrylic latexes which has been prepared using the saccharide stabilizers.
Patent CA-2242920-A1 (CA)
Title: Improvements in or relating to smart cards
Inventor: FOWERS STANLEY WILLIAM
IPC: G06K19/07
Filed: 1997-01-08
Abstract: A pouch system for smart cards, wherein said pouch system is provided with electrical contacts for connection with electrical contacts of an inserted smart card, thereby changing in use the capacity of the inserted card to receive and/or transmit external signals. A smart card comprising semiconductor circuitry including a memory section is also disclosed. The semiconductor circuitry is connected to contact pads formed on the surface of the card.
Patent CA-2243105-A1 (CA)
Title: Vapour extraction of hydrocarbon deposits
Inventor: MOKRYS IGOR J
IPC: E21B43/16
Filed: 1998-07-10
Abstract: A non-thermal vapour extraction method for the recovery of hydrocarbons from deep, high pressure hydrocarbon deposits, either previously exploited by cold flow or virgin deposits that may be underlain by active aquifers is described.  The method, termed RASD-Vapex, utilizes a light hydrocarbon solvent vapour in a tailor-made mixture with reservoir natural gas so that the solvent dew point is adjusted to the reservoir conditions of temperature and pressure. The solvent is selected typically from the group of ethane, propane and butane and may be used by itself or combined in a solvent mixture. The surface facilities in which the dewpoint is adjusted to downhole conditions consist of a solvent stripper, separator, solvent injector, dew point controller, pumps and a control unit. The spent tail gas is analysed in-line for the active solvent component, enriched with the required amount of recycled solvent and reintroduced into the reservoir as an injection gas with solvent at its dew point. Both the recovered solvent and free gas are being continuously circulated through the reservoir. The extraction is a continuous process and is accomplished by either employing pairs of parallel horizontal injection/production wells that are spaced laterally apart and alternate or by converting existing vertical or inclined cold production wells into injectors and adding horizontal production wells. The horizontal producers are in communication with the reservoir fluids through slotted liners. The initial injectivity and a large solvent-oil mass transfer area required for an economically viable operation are accomplished by utilizing high permeability zones of the reservoir, such as fractures, channels left behind after cold flow production or aquifers. The horizontal producer may be located at the bottom of the pay zone just above the aquifer and the active aquifer between injection wells may also be receded deeper into the reservoir to control water production. The concept of reservoir adjusted solvent dew point makes this environmentally friendly extraction method amenable to a wide range of watered out reservoirs that have been abandoned, although only about 10% of the original oil in place had been recovered.
Patent CA-2244666-A1 (CA)
Title: Sieve construction for a combine harvester
Inventor: LOEWEN WARREN D
IPC: A01F12/44
Filed: 1998-08-11
Abstract: A sieve for use in a combine harvester includes a plurality of longitudinal parallel rails lying in a common plane of the sieve including two spaced side rails and at least one intermediate rail. Each rail has a row of holes supporting a plurality of parallel cross wires of square cross-section extending generally at right angles to the rails with each wire passing through a respective one of the holes. Each wire carries a plurality of separate louver sections thereon, each louver section spanning a distance between a respective pair of the rails. A common adjustment member for the wires causes common rotation of each of the wires about a longitudinal axis to cause rotation of the louver sections to adjust the louver openings. Each louver section has formed a square sleeve through which the wire passes without welding to the wire so that the wire can be pulled longitudinally relative to the louver sections for removal of individual louver sections for repair.