baber/WOPTO huggingface dataset:
Patent CA-2139709-A1 (CA)
Title: Method of processing an epitaxial wafer of inp
Inventor: IWASAKI TAKASHI
IPC: H01L33/00
Filed: 1995-01-06
Abstract: A method is provided herein for the fine processing of InP epitaxial wafers including As, In and P for producing laser diodes, light-emitting diodes or photodiodes. The InP epitaxial wafer is selectively covered with striped protection mask films. The parts of the wafer which are uncovered by the protection mask films are first etched by an etchant which forms normal-mesas or mountain-shaped stripes under the masks, to provide a first-etched wafer. Then, the first-etched wafer is again etched by a gas of thermally-dissolved AsCl3 until the stripes have rectangle sections with erect surfaces.      Buried layers of InP then are grown on the eliminated parts of the wafer.
Patent CA-2141149-A1 (CA)
Title: Clutch Ball Ramp Actuator with Coast Lock
Inventor: ORGANEK GREGORY J
IPC: F16D27/112
Filed: 1995-01-26
Abstract: A ball ramp actuator having a control ring acting with an activation ring to supply an axial driveline clutch clamping force in a vehicle driving mode and a one-way clutch acting on the activation ring to maintain the clamping force when in a vehicle coast mode where one side of a one-way clutch is attached to the control ring and another side is attached to a support bracket that is frictionally coupled to a transmission input shaft to maintain an energized rotational relationship with the activation ring when in the coast mode.
Patent CA-2143109-A1 (CA)
Title: Excavating and Pipe Laying Machines
Inventor: GEELHOED JACK
IPC: F16L1/036
Filed: 1993-08-25
Abstract: A pipe laying machine comprises a vehicle carrying a trench excavator followed by a pipe laying box (10) running in the trench. Pipe lengths are stored in the pipe laying box one above another and the lowermost pipe length is periodically released by movement of bars (48, 50) into the bottom of the pipe laying box and is pressed by a ram (6) into the mouth of the last laid pipe length.
Patent CA-2143267-A1 (CA)
Title: Bucket
Inventor: BERTRAND VICTOR J
IPC: B65D25/28
Filed: 1995-02-23
Abstract: A bucket that children cannot put over their head, having a bottom wall, side walls, a removable lid and a non-pivoting U-shaped handle. The side walls project upwardly from the bottom wall and form an opening having circumscribing edges. The removable lid fits in the circumscribing edges for closing the bucket. The non-pivoting U-shaped handle has opposite side legs slidably mounted onto the side walls. The U-shaped handle also has stopping means for limiting sliding of the handle between a first position where the U-shaped handle bears against the lid when the same is fitted in the circumscribing edges and a second position where the U-shaped handle extends away from the lid and thus makes it possible to remove the lid from the circumscribing edges. Thus, the U-shaped handle, both in first and second positions, divides the opening into two smaller openings which are smaller than a child's head, thus children cannot put the bucket over their head.
Patent CA-2145612-A1 (CA)
Inventor: BUCCIONI ALDO
IPC: B62B1/12
Filed: 1995-03-27
Abstract: A carrier for hockey equipment includes a generally box-shaped container body which is moulded in a high-impact plastic material, and has a pair of wheels at its bottom rear edge. Clamps are provided on the back face of the container for frictionally retaining a pair of hockey sticks that can be used to manipulate the carrier on its wheels. The container has doors at the front, a lower one of which can be folded down to form a platform on which a hockey player can stand while changing. An upper door opens laterally. The two doors provide access to a number of wire baskets within the container body, for accommodating hockey equipment.
Patent CA-2146484-A1 (CA)
Inventor: VESTOLA JUHANI
IPC: F16C13/00
Filed: 1995-04-06
Abstract: A method and device for conditioning a ceramic or metal-ceramic coating of a paper machine roll at its operating site.  The roll is ground periodically by a grinding member mounted on a doctor of the roll.  The grain size of the grinding particles in the grinding member, i.e., the average diameter of the particles, is in the range of from about 15 to about 200 µm.  In the grinding situation, the roll is rotated in its site of operation, and the grinding member is pressed with a force into contact with the face to be ground, whereby, if the face to be ground is excessively rough, it is smoothed to the desired value of surface roughness and,  in a corresponding manner,  an excessively smooth face is roughened to the desired surface roughness value determined by the grinding member.
Patent CA-2147201-A1 (CA)
Inventor: MENDENHALL JESSE W
IPC: G05B19/401
Filed: 1995-04-18
Abstract: The invention relates to improvements in the multiple spindle rotary indexing machine tool systems of the prior art. Traditionally, such machine tool systems include a base and an upstanding vertical column which houses a plurality of machining stations each equipped with two-axis tool slides. In addition, the base supports a rotatable worktable, which carries a number of work-holding spindles. As the worktable rotates, these spindles are indexed through successive machining stations where a variety of operations are performed. In accordance with the invention, a spindle position measurement unit is provided to dynamically measure the exact location of each spindle indexed to position at a modified machining station. A computerized numerical control system calculates spindle position errors based on the position information provided by the measurement unit and offsets tool slide position commands to compensate for those errors. As a result, the control unit compensates for both fixed and variable spindle position variations, thus improving the machining tolerances of the machine tool apparatus. In accordance with another aspect of the invention, a high accuracy finishing station is provided which includes spindle position variation measurement and compensation in combination with an independent X and Y axis tool slide positioning system. The tool slide positioning system is responsive to CNC commands for speed control and position offset due to spindle errors.
Patent CA-2147296-A1 (CA)
Title: Method of reducing rock damage to a trailer having fenders
Inventor: DIXON JOSEPH STEPHEN
IPC: B62D25/16
Filed: 1995-04-19
Abstract: A method of reducing rock damage to a trailer having fenders is described.   The method involves a single step of securing deflector shields to opposed sides of a trailer.   Each deflector shield is angled outwardly and rearwardly from one of the opposed sides of the trailer to a peripheral edge of a fender.   Each deflector shield extends to a height substantially equal to a top of the fender.
Patent CA-2149517-A1 (CA)
Title: Network termination unit
Inventor: CHARLAND CLAUDE
IPC: H04M3/32
Filed: 1993-07-30
Abstract: A network termination unit (20) for connection to a telephone line (12,14) at a predetermined demarcation point thereof for sequentially simulating a plurality of fault conditions to allow a diagnostic routine to be performed on the telephone line at a remote location from the demarcation point. The network termination unit (20) comprises a plurality of semiconductor switches (34, 36, 38, 40, 42, 43) electrically connected to conductors of the telephone line to establish a network of electrical paths capable of altering the electrical condition of the telephone line when caused to assume a state of conduction. A logic module (32) causes the switches to assume either a closed or an open condition in accordance with a predetermined sequence established by a hard-wired program.
Patent CA-2152387-A1 (CA)
Inventor: SUMNER-SMITH MARTIN
IPC: A61K38/08
Filed: 1993-12-22
Abstract: An anti-viral composition includes a synergistic combination of an anti-viral neucleoside analogue, which may inhibit a virus-specific enzyme, such as viral thymidine kinase and reverse transcriptase, an anti-viral oligopeptide compound having from 6 to 12 amino acid residues substantially all of which are D-arginine residues, and a pharmaceutically acceptable carrier. A method for treating a viral infection is also described.
Patent CA-2153112-A1 (CA)
Title: Apparatus for sealing shutoff devices located in pipelines for transporting liquids or gases
Inventor: HOFFMANN MICHAEL
IPC: F16K5/20
Filed: 1995-06-30
Abstract: An apparatus is proposed for sealing shutoff devices located in gas or liquid transporting pipelines having a sealing arrangement, which seals the shutoff device against a casing, the sealing arrangement having a gasket engageable against the circumferential surface of the shutoff device and a seating ring supporting the gasket, and with two chambers which can be supplied in controlled manner with a pressure medium and by means of which the gasket can be raised from the circumferential surface and pressed against the latter. The sealing arrangement has a driving member (7) positively connected to the seating ring and a displaceable intermediate piston (8) located on the driving member, the first chamber (17) being located between the driving member and the intermediate piston and when subject to the action of the controlled pressure brings about a movement of the driving member in the gasket raising direction and the second chamber (16) is located between the intermediate piston and the casing (1) and when subject to the action of the controlled pressure brings about a movement of the intermediate piston in the pressing direction.  Between the seating ring and the intermediate piston are located spring elements, which are biased on the pressing direction.
Patent CA-2157894-A1 (CA)
Title: Intrusion detection apparatus
Inventor: KERR REGINALD J
IPC: G08B13/16
Filed: 1993-03-10
Abstract: Intrusion detection apparatus for use in perimeter security systems and the like is provided with multiple channel signal processing. Each signal processor includes a bandpass filter whose passband is selectable. Each is respectively responsive to sensed movement including vibrations within the associated selected passband. An output affirmative signal is generated if the amplitude of the input signal constituent within the associated frequency range exceeds a threshold level for a predetermined period of time.  A logic circuit receives the outputs of all of the signal processors and provides an output alarm signal when a predetermined combination of affirmative signals is received from the signal processors.  Such logic circuit preferably works with digital signals obtained by analog-to-digital conversion.  A threshold bias adjustment may be provided for adjusting the threshold amplitude of at least one input signal so that ambient noise may be taken into consideration by the logic circuit.
Patent CA-2158335-A1 (CA)
Title: Portable transit data information system and apparatus
Inventor: BURGENER EDWARD CARL
IPC: G08G1/123
Filed: 1995-09-13
Abstract: Provides users with an accessible continuously updated arrival time estimate of the next vehicle arriving at vehicle stops such as bus stops.  Three discrete data streams are collected at a central computer and radio-beamed to portable receivers, each of which places some of the data in memory and uses some for real-time display, when the unit has been activated by the user.  One stream allows time estimate to be computed; a second updates route changes; a third places messages such as cross-street data into unit memory, or displays storm warnings or the like.  Users can enter specific stops and routes, can program audible pre-alert arrival warnings, can choose to be alerted to specific vehicle types (such as handicap accessible), and can see two arrival time estimates simultaneously, either for two different stops of different routes (to compute transfers) or of two sequential vehicles arriving at the same stop.  The user's pre-paid fare status can be displayed for drivers, and users can enter an ad-hoc stop on an unfamiliar trip and read the distance and arrival information of the return stop on the other side of the street.
Patent CA-2162292-A1 (CA)
Title: Improvements in coal and rock picks
Inventor: DENZ KIERON
IPC: E02F9/28
Filed: 1994-04-13
Abstract: The invention relates to a coal or rock pick which consists of a pick body with a cone shaped head having a shank extending therefrom and a securing clip housed in a circumferential groove adjacent the end of the shank remote from the head. An open ended longitudinal axial bore extends into the pick body from the head which constitutes a magazine for an array of pick points housed therein.   Preferably the securing clip comprises a sleeve formed of plastic elastomeric material having a smooth internal bore and an external circumferential flange intermediate its ends. The inner diameter and length of the sleeve being such that it can be force fitted over the shank and accommodated in the circumferential groove.
Patent CA-2164970-A1 (CA)
Inventor: FALCK JOHN BELLEW
IPC: G06K19/067
Filed: 1994-06-24
Abstract: On code un dispositif (50) pouvant être codé, et dont le code est déterminé par les liaisons fusibles (11) qui ont été fondues, en appliquant une tension de fusion, à partir d'une bobine d'entrée (21), tour à tour à chaque liaison. Le dispositif comprend un circuit de surveillance (18, 20, 5) qui fournit une indication à une unité de programmation externe qu'une liaison (11) a été fondue, après quoi un sélecteur de données (9) effectue une recherche afin de détecter la prochaine liaison devant être fondue. Après que le codage ait été achevé, une autre liaison fusible (111) est fondue afin de protéger le code mémorisé.
Patent CA-2166845-A1 (CA)
Inventor: GERBER ARTHUR HARRY
IPC: C08L61/28
Filed: 1996-01-09
Abstract: A binder solution of a phenolic novolak resin in solvent, preferably furfuryl alcohol containing at least one chemical agent such as amines containing one to five, preferably two to four, nitrogen atoms, glycerine or mixtures thereof. Preferably, the binder solution contains about 0.2 to about 1.5 weight percent water. The binder solution is for binding refractory objects, preferably those containing doloma (calcined dolomite) aggregate. Methods of mixing these ingredients and using the mixture are also disclosed. Bricks made from the doloma aggregate mixed with the binder solution show good ambient temperature green strength and enhanced modulus of rupture after curing and coking.
Patent CA-2167046-A1 (CA)
Title: A security device using an ultrasensitive microtrace for protecting materials, articles and items
Inventor: SLATER JAMES HOWARD
IPC: C12Q1/6816
Filed: 1994-07-12
Abstract: A method of marking a solid article or item comprises applying thereto beads having nucleic acids attached thereto. A method of monitoring an interaction between any material, article or item and a person or animal comprises providing a device capable of producing an aerosol containing a nucleic acid label and means to activate the aerosol on interference by a person or animal with the material, article or item. Methods of marking a material comprise adding to the material a plurality of beads having attached thereto a plurality of nucleic acid molecules. At least two distinct primer sequences are associated with different nucleic acid molecules.
Patent CA-2171190-A1 (CA)
Title: Matrice a motifs de microbilles metalliques uniformes
Inventor: KOSKENMAKI DAVID C
IPC: H05K3/32
Filed: 1994-08-24
Abstract: L'invention se rapporte à un procédé permettant d'obtenir une matrice de microbilles métalliques sur un substrat, de préférence suivant une disposition régulière des microsphères ou des microbilles de dimension uniforme et très fines, avec un espacement ou à une échelle qu'il était impossible auparavant d'obtenir. Le procédé de l'invention comprend les étapes consistant à déposer une couche métallique (14) sur un substrat (12) divisé en régions métalliques (20), et à chauffer la couche métallique à une température suffisante pour faire fondre le métal et permettre la formation de microbilles discrètes (22) dans la couche.
Patent CA-2171345-A1 (CA)
Inventor: BRADY PATRICK SHAUN
IPC: G06F21/44
Filed: 1994-10-14
Abstract: In personal identification systems which compare passwords in a verification computer to identify a user, successive passwords are generated, or retrieved from a stored list in the verification computer in response to each entry of a public username into the verification computer. A user device carried by the user retrieves the next successive password from a stored list in response to a command from the user and displays the password. The user then reads this password and offers it to the verification computer via a keyboard entry to be compared with the password already generated or retrieved in response to the username (the expected password).
Patent CA-2171738-A1 (CA)
Title: Parenteral busulfan for treatment of malignant disease
Inventor: BHAGWATWAR HARSHAL P
IPC: A61K31/255
Filed: 1994-08-30
Abstract: Stable parenteral formulations of busulfan safe for parenteral administra-tion. An HPLC assay for busulfan sensitive enough to dependably quantitate concentrations in plasma as low as approximately 100 ng/ml was developed. The stability of these formulations was investigated to select preparations providing desirable plasma pharmacokinetic parameters with parenteral versus oral adminis-tration. In addition, quantitative extraction technology was established for reliable quantification of bulsulfan in plasma samples after both oral and parenteral drug administration. When administered to experimental animals, the parenteral busul-fan formulation yielded significantly higher plasma drug concentrations and higher area under the plasma concentration vs. time curve than did the oral (standard) tablet preparation. The improved bioavailability of the parenteral formulation op_ timizes high dose busulfan thepary against malignant disease and improves the safety of such therapy.
Patent CA-2173170-A1 (CA)
Title: Illuminating Brick
Inventor: KERR GLENN HARVEY
IPC: F21V33/00
Filed: 1996-04-01
Abstract: A brick device which has a hollow simulated brick portion with a light-emitting upper surface portion,  and an electric bulb unit supported within the simulated brick portion whereby, in use, light is transmitted through said upper surface.  The upper surface portion may be a sheet of   transparent   material   supported   on   ledges   and snugly-fitting within the brick portion.  The base of the brick portion is open over a substantial part of its area to   facilitate   drainage   and   substantially   reduce condensation.
Patent CA-2173824-A1 (CA)
Title: Ethylenediaminetriacetic acid and salts thereof as chelating agents in pulp bleaching
Inventor: PARKER BRIAN A
IPC: D21C9/10
Filed: 1996-04-10
Abstract: A process for metal ion chelation in pulps. Extraction and removal of detrimental metal ions, preferentially manganese, iron and copper, prior to delignification and bleaching is carried out on pulp, preferably kraft pulp, using ethylenediaminetriacetic acid or ethylenediaminetriacetic acid salts as the chelating agent. Suitable salts include alkaline earth metal, alkali metal, ammonium and amine.
Patent CA-2175017-A1 (CA)
Inventor: SCHLAUCH FREDERICK C
IPC: B44C3/00
Filed: 1996-04-25
Abstract: Collector-targeted memorabilia articles, and a method of producing a collector-targeted memorabilia article by affixing one or more integral collectible attractiveness attributes to a selected base article.  An item selectable for use as a base article is, for example, a sports-related item, a non-collector-targeted utilitarian item, a pre-existing memorabilia item. an item intentionally manufactured for use as a base article, or a like item. Each memorabilia article is a unified body of tangible material comprising a base article and a requisite integral collectible attractiveness attribute affixed to the base article in the form of a genuine fingerprint of a preferred personality, a genuine autograph of a preferred personality, or a facsimile fingerprint of a preferred personality.  A facsimile autograph of a preferred personality, limited edition markings, a witness-signed authentication statement, notarial confirmation text, and/or other integral collectible attractiveness attributes may be affixed to the base article.
Patent CA-2177118-A1 (CA)
Inventor: DEVOLPI DEAN
IPC: G05G9/047
Filed: 1996-05-22
Abstract: A low-cost joy stick or pad with improved performance, reliability and durability which can be used as a cursor pointing device for computers, remote controls, video games, consumer electronics, industrial controllers, automotive and other applications. A conductive spring or sheath connects to a conductive curved rubber transducer which can be deflected to make contact with conductors on a printed circuit board, providing electrical outputs to a microprocessor or other device.
Patent CA-2178232-A1 (CA)
Title: Lcd with bus lines overlapped by pixel electrodes and photo-imageable insulating layer therebetween
Inventor: DEN BOER WILLEM
IPC: G02F1/1362
Filed: 1996-06-05
Abstract: This invention is related to an active matrix liquid crystal display (AMLCD) having a high pixel aperture ratio. The display has an increased pixel aperture ratio because the pixel electrodes are formed over the insulating layer so as to overlap portions of the array address lines. Both the manufacturability and capacitive cross-talk of the TFT-based device are improved due to the use of a photo-imageable insulating layer between the pixel electrodes and the address lines. Both the manufacturability and capacitive cross-talk of the TFT-based device are improved due to the use of a photo-imageable insulating layer between the pixel electrodes and the address lines. According to certain other embodiments, the insulating layer may be BCB (either photo-imageable or not) and/or have a dielectric constant less than about 3Ø
Patent CA-2180640-A1 (CA)
Inventor: FULLER MARK W
IPC: B05B7/04
Filed: 1995-01-09
Abstract: An air powered water display nozzle unit (20) which has an adjustable nozzle (22) coupled to a housing (24) by a support plate (60) and a plurality of springs (64).
Patent CA-2181164-A1 (CA)
Title: Anti-gram-positive bacterial methods and materials
Inventor: HOROWITZ ARNOLD
IPC: A61K45/06
Filed: 1995-01-13
Abstract: The present invention relates to methods of treating gram-positive bacterial infections by administration of a BPI protein  product alone, or in combination with an antibiotic.  BPI protein product alone has a bactericidal or growth inhibitory effect on selected gram-positive organisms.  BPI protein product also increases the susceptibility of gram-positive organisms to antibiotics and can even reverse resistance of gram-positive organisms to antibiotic.