baber/WOPTO huggingface dataset:
Patent CA-2284299-A1 (CA)
Title: Method and apparatus for a high resolution eye scanner
Inventor: BASU ANUP
IPC: A61B3/032
Filed: 1999-09-28
Abstract: An apparatus and method are described which provide a unique way of creating a very high resolution image of the retina inside an eye. In one aspect, the apparatus uses a very resolution linear CCD array coupled with structured light projectors (or low power eye safe lasers) to illuminate the retina to capture a very high resolution image segment of the retina. In another aspect, a moving light pattern is used which is tracked by an observer whose eye is being scanned, and the image segments of the retina as the eye tracks the moving light pattern is integrated to form a very high resolution image segment of the retina. In yet another aspect, the structured light projectors can be used to project a known pattern on the retina to reconstruct a 3D map of the retinal surface integrating 3D information computed as the eye tracks a moving light. In yet another aspect, innovative methods are used to register the orientation of the eye being scanned with the very high resolution image segment captured at any point of time.
Patent CA-2285840-A1 (CA)
Title: Fold-in-half shipping/display box
Inventor: GREGORY JAMES W
IPC: B65D5/52
Filed: 1999-10-13
Abstract: A fold-in-half shipping/display box has tear-away segments in its front side, and severable perforations in the top and rear walls, whereby once the tear-away segments have been removed and the perforations have been severed, the box can be folded in half to display items contained therein.
Patent CA-2289064-A1 (CA)
Title: Ground anchorage testing system
Inventor: RODGER ALBERT ALEXANDER
IPC: E02D5/80
Filed: 1998-04-28
Abstract: A ground anchorage testing arrangement having an impulse imparting apparatus connectable to a ground anchorage tendon (20) or element thereof to be tested, the impulse imparting apparatus comprising an attachment means (22) for attachment to the ground anchorage tendon (20), a movable mass (31), a guide (28, 34) for guiding movement of the mass in the direction substantially aligned with the axis 0 of the ground anchorage to be tested and a drive means for imparting a driving force to move the mass in said direction (not shown).  A method of assessing the integrity of ground anchorages, the method comprising the steps of (a) imparting a load impulse to a ground anchorage tendon to be tested, (b) monitoring the vibrational response signal of the anchorage to the imparted load impulse, (c) conditioning the vibrational response signal and (d) applying the conditioned vibrational response signal to an artificial neural network.
Patent CA-2289372-A1 (CA)
Title: Intumescent material
Inventor: DUQUETTE DAVID J
IPC: C09K21/14
Filed: 1999-11-12
Abstract: An intumescent material includes a liquid carrier with a corrosion inhibitor, such as a coating forming material, expandable particulate graphite (flake graphite or lump graphite) and if desired a filler. The intumescent material has a pH greater than 7.0, to reduce the corrosive properties of the intumescent material for most metals used in the construction industry and to provide a chemical environment conducive to the forming of a corrosion inhibiting layer by the corrosion inhibitor. The method of making the intumescent material includes combining the liquid carrier, the corrosion inhibitor, the expandable particulate graphite, the filler (if used), and a pH enhancer (if necessary to bring the intumescent material within the desired pH range), to form an intumescent material having a pH greater than 7Ø
Patent CA-2292175-A1 (CA)
Title: Single stage ac/dc converter for high frequency ac distribution systems
Inventor: JAIN PRAVEEN KUMAR
IPC: H02M7/217
Filed: 1999-12-15
Abstract: An AC/DC converter for outputting high current, low voltage output from a high frequency AC source is described. The AC/DC converter includes two resonant components, a resonant circuit having a capacitor and an inductor. Both of the resonant components are connected in series and form a series resonant circuit. The converter further includes a transformer having a primary winding with a center tap to a secondary winding. The resonant circuit and the primary winding are connected in series. The center tap is connected to an output filter and a load, while the other two ends of the secondary winding are connected to two controlled switches, respectively. A drain of each of the two controlled switches is connected to opposite ends of the secondary winding, while each of the sources of the two controlled switches are interconnected. Two anti-parallel diodes are respectively connected across the two controlled switches. Two capacitors are also respectively connected across the two controlled switches. The on-time of the controlled switches is regulated to control the output voltage of the converter. The advantage is an inexpensive converter adapted to output high currents at low voltages with very little ripple and very low slew rate.
Patent CA-2292814-A1 (CA)
Title: Conduite souterraine mixte
Inventor: TURMEL PIERRE
IPC: H02G9/04
Filed: 1999-12-17
Abstract: La présente invention concerne une conduite souterraine mixte comprenant u ne portion ayant une fonction d'égout ou de conduite d'aqueduc, et une portion ayant comme fonction le transport de conducteurs tels que des conducteurs électriques, téléphoniques, de câblodistribution etc. Le matériau de fabrication de la conduite est préférablement un conducteur thermique permettant ainsi la diffusion de la chaleur générée par  les conducteurs et le maintien d'une température suffisamment élevée pour empêch er le gel du liquide dans la première portion de la conduite.
Patent CA-2293809-A1 (CA)
Inventor: LARSSON SVEN-OLOF
IPC: B01D53/26
Filed: 1998-06-17
Abstract: An air drier arrangement comprises an air compressor (1), an air drier (3) and air conduits (2, 4). In order to obtain favourable working conditions for the arrangement under different temperatures there is a switch-over valve (6) in a separate signal air pipe (5) from the air drier to the compressor. This valve is operable between a first position, giving a governor mode for the arrangement, and a second position, giving an unloader mode for the arrangement. The operation of the valve may be governed by a thermostat (9).
Patent CA-2296574-A1 (CA)
Title: Cationic sugar surfactants from ethoxylated ammonium compounds and reducing saccharides
Inventor: SKOELD ROLF
IPC: C07H15/08
Filed: 1998-08-03
Abstract: The present invention relates to cationic sugar surfactants with improved biodegradability that can be used as hydrotropes for surfactants, especially for nonionic alkylene oxide adducts in alkaline solutions, and as cleaners for hard surfaces. The cationic sugar surfactants contain at least one hydrocarbon group with 6-24 carbon atoms and at least one quaternary ammonium group where at least one substituent is an alkyleneoxy containing group which is connected to a saccharide residue by a glycosidic bond. They are obtained from ethoxylated quaternary ammonium compounds and reducing saccharides or alkyl glycosides.
Patent CA-2296786-A1 (CA)
Title: Head bathing system
Inventor: SKIBA BARBARA T
IPC: A45D19/00
Filed: 2000-01-21
Abstract: A head bathing system for haircare. The system is composed of an outer cap having a head-receiving aperture, an inner, absorbent liquid-holding layer, and a flexible gathering for the cap at the aperture. The liquid-holding layer is impregnated with a cleansing solution. To clean a person's hair, the system is applied to the person's head, which is massaged through the cap to cause the cleansing solution to wet the person's hair. After sufficient cleaning, the system is removed from the person's head. Because of the nature of the liquid-holding layer, it reabsorbs much of the cleansing solution before the system is removed from the person's head.
Patent CA-2297201-A1 (CA)
Inventor: JAVARS RUSSEL
IPC: A63H17/25
Filed: 1998-07-09
Abstract: A security alarm device (12, fig. 2) is replicated in a toy vehicle (10). The security alarm device (12) includes a remote control (30) which can also control vehicle functions. The remote control (30) may control alarm arm and disarm, alarm and vehicle sounds, such as arm, disarm, alarm set off, engine reversing and tire (14) screeching; motor drive; and vehicle lights (22). The security alarm device (12) includes an LED (26) which indicates whether the alarm is armed or unarmed, and a motion sensor (50) which sets the arm off (e.g., emitting a siren sound) when the toy vehicle (10) is moved in its armed state.
Patent CA-2297927-A1 (CA)
Title: Electronic article security system for interrogating rfid tags and virtually deactivating and reactivating tags
Inventor: BOWERS JOHN H
IPC: G06K19/07
Filed: 1998-07-15
Abstract: An electronic security system uses a set of predefined RFID tags (10) each associated with and attached to an article or packaging for an article, and each includes unique tag information which is logged into a computerized database (200) as a record. When a tag is detected in a detection zone by an interrogator (22), the database records are compared to the tag information using a comparator (37) and an appropriate database response is output. When legitimate access to the tagged article is obtained, the tag may be deactivated electronically, physically or virtually.
Patent CA-2298069-A1 (CA)
Inventor: JAEGER KARL-ERICH
IPC: C12N9/20
Filed: 1998-07-23
Abstract: The invention relates to a method for producing and identifying hydrolase mutants having improved properties regarding stereoselectivity and site selectivity, catalytic activity or stability during chemical reactions.
Patent CA-2300032-A1 (CA)
Inventor: WEDER DONALD E
IPC: A47G7/08
Filed: 2000-03-06
Abstract: A substantially flexible, shape-sustaining article, such as a flower pot cover, is disclosed wherein the article has a paper-like appearance. The article can be made by forming a flexible, substantially non-shape sustaining polymeric material or a laminated material wherein at least one surface of the material is modified to provide the material with a paper-like texture or appearance. The substantially flexible, shape-sustaining article, which has an appearance of being made of paper, includes a base having a closed lower end, an open upper end with an object opening extending therethrough and a decorative border extending outwardly from the open upper and of the base. The base of the article has a plurality of overlapping folds of which at least a portion are permanently connected so that the article may be substantially flattened and then unflattened to assume the original shape of the article.
Patent CA-2300319-A1 (CA)
Inventor: TSE BRUNO
IPC: A61K31/4406
Filed: 1998-08-18
Abstract: 4-Cyano-4-deformylsordaricin derivatives are antifungal agents useful in the treatment and/or prevention of human and animal fungal infections, as well as in the control of phytopathogenic fungi in crops.
Patent CA-2300878-A1 (CA)
Title: Central nervous system axon regeneration
Inventor: STRITTMATTER STEPHEN M
IPC: C12N5/079
Filed: 1998-08-12
Abstract: Therapies for the treatment of a variety of central nervous system injuries including acute or chronic spinal cord injury, traumatic brain injury, and white matter stroke involve the administration of rho protein inhibitors to promote axon regeneration. Local administration is employed in typical embodiments, and this may include injection of a recombinant virus that expresses an inhibitor. In one embodiment, the inhibitor is C. botulinium C3 exoenzyme or a chimeric C. botulinum C2/C3 construct expressed in a replication-deficient adeno, adeno-associated, or herpes virus.
Patent CA-2304761-A1 (CA)
Title: Universal programmable cardiac stimulation device
Inventor: SCHROEPPEL EDWARD A
IPC: A61N1/368
Filed: 1998-08-13
Abstract: An implantable medical device (100), such as a pacemaker, for electrically stimulating the heart to beat includes two or more node logic units (310, 320, 330) connected by communication paths (321, 322, 323, 324, 325, 326, 327, 328) over which signals between nodes are conducted. Each node can provide pacing energy to an electrode and amplify electrical signals from the electrode. In response to detecting an electrical event from the electrode or pacing an electrode, each node generates a sense signal or a pace signal. The sense and pace signals form each node can be transmitted to all other nodes with or without a time delay. The time delays between nodes are provided by delay modules (312, 314, 316, 318, 332, 334, 336, 338, 352, 354, 356, 358) controlled by a processor (300). As such, the implantable medical device can be configured to provide a variety of pacemaker therapies.
Patent CA-2306000-A1 (CA)
Title: Process for producing phosphineoxide vitamin d precursors
Inventor: KABAT MAREK MICHAL
IPC: C07F9/53
Filed: 2000-04-18
Abstract: A process for producing a compound of the formula:    where Ph is phenyl, X1 and X2 are both hydrogen or X1 and X2 taken together are CH2, R1 is a protecting group, R2 is fluorine, hydrogen, or OR3, where R3 is a protecting group, and the squiggly line represents a bond that results in the adjacent double bond being in either the E or Z configuration, involves: (a) chlorinating a compound of the formula:    where X1, X2, R1, R2, and the squiggly line are as above, using triphosgene in the presence of an organic base to obtain the compound of the formula:    where X1, X2, R1, R2, and the squiggly line are as above; and (b) reacting the compound of formula 3 with a salt of diphenyl phosphine oxide to obtain the compound of formula 1. Each of the above steps (a) and (b) are individually useful.
Patent CA-2306469-A1 (CA)
Title: Cleaning and disinfecting compositions
Inventor: SEVERINI ANTONELLA
IPC: C11D3/48
Filed: 1998-10-12
Abstract: A cleaning end disinfecting composition which provides effective cleaning, disinfecting and shine performance, said composition comprising a surfactant system comprising from 0.01 % to 10 % by weight of the total composition of as amine oxide, from 0.01% to 20 % by weight of a short chain alkyl sulphate surfactant according to the formula: R1SO4M, wherein R1 represents a saturated or unsaturated alkyl group containing from 6 to 8 carbon atoms and M is H or a cation, and from 0.01% to 20% by weight of a long chain alkyl sulphate surfactant according to the formula: R2SO4M, wherein R2 represents a saturated or unsaturated alkyl group containing from 9 to 30 carbon atoms and M is H or a ~. More preferably, the composition further comprises an antimicrobial compound and/or a peroxygen bleach for further enhanced disinfection performance.
Patent CA-2306584-A1 (CA)
Title: Auxiliary lens units for eyeglasses
Inventor: CADIEUX ROBERT
IPC: G02C9/00
Filed: 2000-04-25
Abstract: An eyeglass device comprising a primary lens unit and an auxiliary lens unit. The primary lens unit has a pair of nose pad supports for supporting nose pads and the auxiliary lens unit has a pair of connector arms for engaging the nose pad supports. Magnets or other suitable attachment devices are disposed respectively in the nose pad supports and the connector arms to detachably secure the auxiliary lens unit to the primary lens unit.
Patent CA-2306721-A1 (CA)
Title: Apparatus for reducing the oversized fraction of chips
Inventor: KOKKO PEKKA
IPC: B27L11/02
Filed: 2000-04-27
Abstract: An apparatus for reducing the oversized fraction of chips, especially the overthick fraction, which apparatus comprises a rotatingly fitted disc-like rotor part (1) to which is attached a number of chipping blades (2), and a fixed stator part (3) surrounding the rotor part (1), to which stator part is attached a number of counter blades (4), the blades (2) and counter blades (4) being arranged in a chipping chamber (5), through which the chips to be reduced are arranged to travel outwards with respect to the rotating shaft (6) of the rotor part (1). The counter blades (4) are fitted in a position substantially deviating from the radial direction of the rotating shaft (6), when viewed on the vertical plane with respect to the rotating shaft (6) of the rotor part (1). The chipping chamber (5) is formed by the space between two counter blades (4), the bottom surface (10) of which space is formed by the top surface of the rotor part (1), and the roof surface (11) by the bottom surface of the stator part (3) and counter blade (4) opposite to the top surface of the rotor part (1), whereby, when viewed in the direction of rotation (12) of the rotor part (1), the said roof surface (11) is arranged to converge towards the said bottom surface (10).
Patent CA-2307729-A1 (CA)
Inventor: JONES BARBARA LYNN
IPC: G01M15/05
Filed: 1999-08-27
Abstract: A method and apparatus for automotive testing comprises a base station and at least two handsets adapted to provide a testing function in at least two corresponding technically distinct areas. Embodiments employ Kelvin connectors and/or Hall effect probes and/or induction probes. System operation is effected by the simplest and minimum number of control commands.
Patent CA-2308363-A1 (CA)
Inventor: CUSTER RICHARD G
IPC: B65D33/34
Filed: 2000-05-12
Abstract: Reclosable closure arrangements suitable for use with packages, such as food and non-food packages, include a zipper having closure profiles that are releasably engageable with each other, a slider to open and close the profiles, and a peel seal. The closure profiles include depending fins that are interconnected by the peel seal. The depending fins may be integrally connected to panel sections included in the package. Moreover, the panel sections may be connected to the depending fins at positions that also have the peel seal. In some embodiments, packages including closure arrangements may be hermetically sealed.
Patent CA-2312087-A1 (CA)
Title: Preparation comprising sterically hindered amines for the prevention and treatment of inflammation
Inventor: VACIK JIRI
IPC: C07D207/26
Filed: 1998-12-02
Abstract: A preparation for prevention and healing of inflammation affections comprising in an amount of 0.1 to 99.9 % by weight derivatives of sterically hindered amines selected from the group consisting of: soluble polymers or copolymers prepared by radical polymerization in the presence of 0.01 to 10 % by weight, of initiators prepared in a polymerization mixture comprising individually or in combination an aliphatic amine monomer of general formula (A), soluble polymers or copolymers prepared by radical polymerization in the presence of 0.01 to 10 % by weight of initiators from monomers of cyclic sterically hindered amines of general formula (B), soluble polymers prepared by polycondensation of difunctional sterically hindered amines of general formula (F), soluble polymers or copolymers prepared by polycondensation of difunctional cyclic sterically hindered amines of general formula (G), soluble copolymers prepared by polycondensation of difunctional cyclic, sterically hindered amines of general formula (G) and monofunctional cyclic sterically hindered amines in an amount of 0.1 to 15 % by weight, based on the total polymerization mixture, of general formula (H), derivatives of sterically hindered cyclic amines of general formula (O), polymers, copolymers, or natural compounds comprising free reactive groups -OH, -NH2, -COOH, -CHO, oxiranyl, selected from the group poly(vinyl alcohol), cellulose, (2hydroxyethyl)cellulose, (carboxymethyl)cellulose, agar derivatives, polymers obtained by condensation, using alkanediol derivatives, oligomers and polymers of ethylene glycol or propylene glycol, natural or synthetic polymers, comprising a free carboxyl group, amino group or aldehyde group, prepared by additional functionalization of polymers or natural compounds by polymeranalogous reaction with a suitable sterically hindered amine.
Patent CA-2312113-A1 (CA)
Inventor: CHEADLE BRIAN EDWARD
IPC: F28D9/00
Filed: 2000-06-23
Abstract: A heat exchanger is disclosed using a plurality of stacked plate pairs consisting of face-to-face mating plates with each plate having a peripheral flange and annular inner and outer primary bosses. Each boss has a portion thereof located in a common first plane with the peripheral flange. An annular secondary boss has a portion thereof located in a second plane spaced from the first plane. Intermediate areas between the inner and outer primary bosses have spaced-apart portions to form inner flow passages. Both the primary and secondary bosses have openings formed therein for the passage of heat exchanging fluids: In back-to-back plate pairs, the secondary bosses are joined and the openings therein communicate to define a manifold for a second of these fluids. The inner and outer primary bosses include radially extending ribs formed about the circumference of each boss and extending substantially across the boss. These ribs are located between the openings formed in the boss and form cross-over passages that permit the second fluid to flow across the primary bosses and through the inner flow passage. There are also rectangular versions of the heat exchanger having at least first and second elongate primary ridges and at least one elongate secondary ridge.
Patent CA-2312292-A1 (CA)
Title: Screwdriver with dual cam slot for collated screws
Inventor: HABERMEHL G LYLE
IPC: B25B23/04
Filed: 1998-06-19
Abstract: A screwdriver for driving collated screws including a slide body coupled to a housing for reciprocal displacement in a cycle including a retraction stroke and an extension stroke, a lever pivotably mounted to the slide body carries at one end a cam pin received in a cam slot in the housing with the other end of the lever advancing successive screws in the screwstrip, the cam slot having first and second camming surfaces for selective engagement by the cam pin to vary the relative positioning of the lever to be different for the same positions of the slide body in the housing in the retraction strokes than in the extension stroke.
Patent CA-2313410-A1 (CA)
Inventor: HOLMGREN BERTIL
IPC: G08B13/24
Filed: 1998-12-15
Abstract: Anti-theft device for spectacle frames comprising a housing (10) forming an opening (18) to receive therein one bow (34) of the spectacle frame. By clamping means (26) in the housing this can be fastened to the bow. The clamping means has a rotatable operating member, which is accessible in a socket (14) provided on the housing, and can be actuated only by using a special tool. The housing is dimensioned to allow, when fastened to the bow, that the spectacle frame is tried on and that the bow is folded. It is divided into two parts in a plane through the socket. A washer (23) provided with an alarm element for affecting a magnetic, acoustic or electro-magnetic field, is pushed onto the socket receiving said socket in an opening in the washer for keeping the two parts of the housing together, and is locked against withdrawal from the socket.
Patent CA-2315613-A1 (CA)
Title: Dual-protocol locomotive control system and method
Inventor: WRIGHT CLIVE B
IPC: B61L15/00
Filed: 2000-07-27
Abstract: An intra-train communications system includes a locomotive control unit (LCU) establishes a communications link between an lead unit and a remote unit which operate using different protocols and/or in different frequency bands.  To accomplish this objective, the LCU automatically detects the type of lead unit and remote unit installed on the train. If the types are not the same, the LCU  resolves any serial link protocol and arming differences that might exist in a manner virtually transparent to train operators. As a result, data is communicated between the lead and remote units in a way which requires less operator intervention and no software changes to the control computer of the head unit.