baber/WOPTO huggingface dataset:
Patent CA-2171514-A1 (CA)
Title: Knee joint prosthesis
Inventor: COLLERAN DENNIS PATRICK
IPC: A61F2/00
Filed: 1996-03-11
Abstract: A knee joint prosthesis includes a femoral component, a tibial plateau and a tibial bearing member. The design and geometry of the articulation surfaces of the condylar elements of the femoral component and tibial bearing member is such that contact area between the articulation surfaces is maximized both in perfect alignment and in malalignment conditions. Moreover, contact stresses placed upon the articulation surfaces in perfect alignment and in malalignment are reduced. High contact area and low contact stress on the articulation surfaces can be maintained even while matching knee prosthesis components of different sizes.
Patent CA-2172515-A1 (CA)
Title: Tin oxide based gas sensors and method for their manufacture
Inventor: WILSON ALAN
IPC: G01N27/12
Filed: 1994-08-22
Abstract: A method for fabricating gas sensors having reproducible gas sensitivity characteristics and the gas sensors so produced. The method comprises the steps: a) hydrolysis of sterically hindered tin(IV) alkoxide dissolved in a polar organic solvent in the presence of a polymer of relatively low molecular weight having a functional group capable of coordinating to tin; b) treatment of the resulting solution with a strong mineral acid to remove the polymer; c) isolation of the solid suspension; d) deposition and subsequent heat treatment at temperatures below 500 .degree.C of an amount of the solid on a suitable substrate to produce a gas sensor head and e) sensitization of the gas sensor head.
Patent CA-2176528-A1 (CA)
Title: Header and Coil Arrangement for Cooling Apparatus
Inventor: MORRISON FRANK T
IPC: F28D7/08
Filed: 1996-05-14
Abstract: A cooling apparatus is provided comprising a vessel (90) confining a pool of liquid (92). A plurality of separate tubular passageways (28, 30; 126, 128; 180, 182; 206, 208; 226, 228; 250, 252) are immersed in the liquid. A header assembly is provided having an inner chamber (18; 118; 166; 176; 198; 216; 222; 242) and an outer chamber (20; 120; 168; 178; 200; 218; 224; 244). The inner chamber (18; 118; 166; 176; 198; 216; 222; 242) is operatively connected to one end of each of the separate tubular passageways (28, 30; 126, 128; 180, 182; 206, 208; 226, 228; 250, 252) and the outer chamber (20; 120; 168; 178; 200; 218; 224; 244) is operatively connected to the other end of each of the separate tubular passageways (28, 30; 126, 128; 180, 182; 206, 208; 226, 228; 250, 252). <IMAGE>
Patent CA-2179769-A1 (CA)
Title: Device for soundproofing a wheel, especially a vehicle wheel
Inventor: MARRON GUY
IPC: B60B21/12
Filed: 1996-06-21
Abstract: The automobile wheel (1) comprises a central circular web (2), a cylindrical rim (3) composed of a rear (4) and front (5) cylindrical parts. The rim parts are separated by the web plane which extends perpendicularly to the rim axis (6). A steel sound insulating ring (11) placed concentric with the rim has a layer of visco-elastic material and is mechanically coupled to the rim. This coupling ensures the ring is hooped onto the cylindrical parts of the rim. The ring has an omega shaped transverse section and has two circular support edges ensuring contact with the rim parts.
Patent CA-2182211-A1 (CA)
Title: Compositions and devices for controlled release of active ingredients
Inventor: BATICH CHRISTOPHER
IPC: A61L29/16
Filed: 1995-02-01
Abstract: A method for the controlled release of a biologically active agent wherein the agent is released from a hydrophobic, pH-sensitive polymer matrix is disclosed and claimed. The polymer matrix swells when the environment reaches pH 8.5, releasing the active agent. A polymer of hydrophobic and weakly acidic comonomers is disclosed for use in the controlled release system. Further disclosed is a specific embodiment in which the controlled release system may be used. The pH-sensitive polymer is coated onto a latex catheter used in ureteral catheterization. A common problem with catheterized patients is the infection of the urinary tract with urease-producing bacteria. In addition to the irritation caused by the presence of the bacteria, urease produced by these bacteria degrade urea in the urine, forming carbon dioxide and ammonia. The ammonia causes an increase in the pH of the urine. Minerals in the urine begin to precipitate at this high pH, forming encrustations which complicate the functioning of the catheter. A ureteral catheter coated with a pH-sensitive polymer having an antibiotic or urease inhibitor trapped within its matrix will release the active agent when exposed to the high pH urine as the polymer gel swells. Such release can be made slow enough so that the drug remains at significant levels for a clinically useful period of time.
Patent CA-2182402-A1 (CA)
Inventor: TAKHAR GURINDER
IPC: G01N21/64
Filed: 1995-02-03
Abstract: A method of determining one or both of the colour and bitterness of beer by illuminating the beer with light of a pre-determined wavelength, typically 400  30 nm, to cause iso-.alpha.-acids in the beer to fluoresce. The fluorescence is detected over a range of wavelengths, typically 420 to 673 nm, using a fluorescence spectrophotometer. One or both of the colour and bitterness of the beer is determined by comparing an output signal from the fluorescence spectrophotometer to output signals stored for beers of known colour and bitterness.
Patent CA-2182938-A1 (CA)
Inventor: LILLELUND STIG
IPC: B01F13/00
Filed: 1996-08-08
Abstract: A shaker for flowable foodstuffs including a reversible blender insert seatable within the upwardly opening enlarged mouth of the shaker vessel and retained, in either position, by an overlying releasable snap-locked pouring spout, the assembly being closed by an overlying threaded cap.  The blender insert, in a first position, defining a filter for retaining enlarged matter during pouring, and in the second position, in conjunction with the pouring spout, an enlarged upper mixing chamber.
Patent CA-2183713-A1 (CA)
Inventor: ROMERS ERIC
IPC: C10G50/00
Filed: 1996-08-20
Abstract: Silicalite to be used as catalyst in the isomerization of olefins is pretreated by passing steam thereon at a temperature of 300 to 750°C.  Particularly, isobutene is selectively produced by isomerization of n-butenes.
Patent CA-2184321-A1 (CA)
Title: Lamp starting circuit
Inventor: NUCKOLLS JOE A
IPC: H05B41/04
Filed: 1996-08-28
Abstract: A hot restart circuit for a high intensity discharge lamp includes a storage capacitor and SCR connected across a tapped portion of a ballast with a breakdown device to start the SCR. A charging circuit for the storage capacitor includes a diode, a pumping capacitor and an RF choke in series from the ballast tap to the AC line, and a further diode interconnecting the capacitors. The pumping capacitor increases the charge on the storage capacitor in a stepwise fashion until breakdown voltage is reached, whereupon starting pulses are applied to the lamp. A positive temperature coefficient (PTC) resistor stops the flow of charging current to the capacitors after a predetermined interval, thereby terminating the reignition pulses and protecting the starting circuit from damage in case the lamp fails to reignite. In an alternative embodiment, a MOSFET gated by an RC timing circuit removes charge from the storage capacitor in order to terminate the reignition pulses after a predetermined interval.
Patent CA-2184647-A1 (CA)
Inventor: VOSS MARK G
IPC: F28F9/02
Filed: 1996-09-03
Abstract: The lack of flexibility in selecting locations for inlets or outlets or crossovers for a heat exchange fluid in a heat exchanger can be minimized in a heat exchanger construction including first and second spaced, generally parallel, tubular headers (10), (12) having opposed ends with a plurality of tubes (20) in parallel and spaced from one another which extend between and have their ends in fluid communication with the interior of the headers (10), (12). An adapter in fluid communication with the interior of the headers (10), (12) is fixed to the exterior of the heat exchanger to place the heat exchanger in communication with fluid conduits that may be disposed in a variety of locations in relation to the heat exchanger.
Patent CA-2188607-A1 (CA)
Inventor: CONRAD HANS-ROLF
IPC: D21G1/00
Filed: 1996-10-23
Abstract: A calender has at least four rollers that are located one above the other. The rollers rotate about roller bearings. The calender is located within a paper-making machine. Each of the rollers is rotatably driven by an independent driving mechanism. At least two of the rollers are heatable.  At least 40% of the rollers are soft rollers. The outer coverings of the soft rollers are made of a synthetic material that is not sensitive to marking so that a doctor blade can be applied to the soft rollers. The calender includes a device that inserts a paper guide strip into the calender.
Patent CA-2190378-A1 (CA)
Title: A medicated wipe
Inventor: GOODMAN MICHAEL
IPC: A61K9/70
Filed: 1995-05-17
Abstract: A wipe, comprising an absorbent woven or non-woven fabric, cloth or tissue substrate, impregnated with a pharmaceutically active agent, wherein the agent is a substance effective in stimulating melanocytes to produce melanin and/or is effective in a topical treatment of a skin condition in combination with electromagnetic radiation falling in the range of 220-700nm.
Patent CA-2191989-A1 (CA)
Title: Pivotal Mounting for Auxiliary Blower
Inventor: BENING CURTIS REINHARD
IPC: A01D43/077
Filed: 1996-12-03
Abstract: A detachable and swingable blower is provided for use with rotary mower decks. The blower is slidably and pivotally mountable on the deck, allowing it to quickly be swung open. A hand activated quick release latch mechanism serves to secure the blower with the mower deck and facilitates quick and easy access to the blower inlet for cleanout and/or service.
Patent CA-2193100-A1 (CA)
Title: Transdermal therapeutic system with active substances constituting sources of carbon monoxide
Inventor: HERMANN FRITZ
IPC: A61K9/70
Filed: 1995-06-03
Abstract: A transdermal therapeutic system (TTS) comprises compounds releasing carbon monoxide in organisms to increase the CO-con-centration in the organism.
Patent CA-2193525-A1 (CA)
Inventor: ZUGNO CLAUDIO
IPC: H04N7/01
Filed: 1996-12-19
Abstract: The present invention relates to a system for use when there is the need of a contemporaneous manipulation of digitized images having different resolution.  In particular for trasforming images from a first TV standard into a second TV standard.  The invention allows a more generic and flexible approach to the problem of generating  a program, for a  certain digital TV standard, by deriving it from another digital TV standard, while observing the artistic constraints proper of the obtained format and avoiding the cost multiplication that would follow from the use of several systems for live telecasting or registration or reproduction or generic manipulation of television images or trasmission thereof. This can be obtained if, in order to produce television images with a certain resolution, other images having higher resolution are used, on which space-time varying cutting operations, followed by eventual additional processing (digital filterings), are executed.
Patent CA-2194041-A1 (CA)
Title: Picture orientation retention tape
Inventor: ST-JACQUES JEAN
IPC: C09J7/38
Filed: 1996-12-27
Abstract: A retention tape retains a picture in a selected orientation and includes a tape member which includes a first adhesive layer on a first tape side and a second adhesive layer on a second tape side. An abrasive-containing layer is adhered to the first adhesive layer, and a non-adhesive release strip is adhered to the second adhesive layer. The abrasive-containing layer may include sandpaper material. The  tape member, the abrasive-containing layer, and the release strip are in a form of an elongated structure rolled up in roll form. The tape member, the abrasive-containing layer, and the release strip also can be in a form of a cylindrical disk.
Patent CA-2194370-A1 (CA)
Title: Attenuation of wound healing processes
Inventor: BENNETT D CLARK
IPC: A61P25/30
Filed: 1995-07-07
Abstract: Glycosaminoglycans, including heparinases 1, 2 and 3 as well as chondroitinases AC and B from the Gram negative bacteria Flavobacterium heparinum, can be used either separately or in combination to manipulate cell proliferation. In one embodiment, heparinases are administered to degrade heparan sulfate components of the extracellular matrix, thereby allowing the heparin binding growth factors which are stored in the extracellular matrix to migrate to adjacent cells. The mobility of chemoattractant agents, growth factors and cells also can be increased by treating tissues with glycosaminoglycan degrading enzymes, both chondroitinases and heparinases. The enzymatic removal of chondroitin sulfates from cell surfaces effectively increases the availability of growth factor receptors on the cell's surface.  Selectively removing heparan sulfate from cell surfaces while leaving the extracellular matrix intact, conversely, inhibits cell proliferation by down regulating the cell's response to growth factors. This is achieved by targeting heparin or heparan sulfate degrading activites to the cell surface.  Targeting the heparin degrading activity can be achieved by genetically engineering a ligand binding functionality into the heparinase proteins, or by physically controlling the localized enzyme concentration through the method of administration.
Patent CA-2195357-A1 (CA)
Title: Opening fingers for envelope inserting apparatus
Inventor: HAMMA JOHN C
IPC: B43M3/04
Filed: 1997-01-17
Abstract: Apparatus for opening an envelope having a front panel, a back panel and a closing flap. The apparatus includes: a device for supporting the envelope in a substantially horizontal plane wherein the back panel is situated above the front panel; a device for holding the closing flap below the back panel; an opening horn for separating the back panel from the front panel, the opening horn being pivotable in a vertical plane; and a device for causing the horn to initially contact the closing flap and to pivot the horn into the envelope between the front and back panels, and to raise the horn inside the envelope, whereby the front and back panels are separated.
Patent CA-2196755-A1 (CA)
Title: Electrochemical device for removal and regeneration of oxygen and method
Inventor: BURK MELVYN I
IPC: C25B1/02
Filed: 1994-08-15
Abstract: An electrochemical device for concentrating oxygen is provided. The electrochemical device comprises a cathode (10) for reducing oxygen to peroxide. An anode (30) is provided for oxidizing the peroxide to form oxygen according to a two electron process. A solid polymer electrolyte (20) diffuses the peroxide from the cathode (10) to the anode (30).
Patent CA-2197983-A1 (CA)
Title: A method to structure call processing and a call processing switching system for telephony
Inventor: KILHAGE MIKAEL PER ERIK
IPC: H04M3/42
Filed: 1995-09-12
Abstract: The present invention demonstrates a method to structure call processing in a telecommunication system, preferably by way of software, to create a standard and generic structure, which makes it possible to extend said system with new services and data without effecting an already existing overhead operation of the system using the half-call principle, by combining this half-call principle with a generic protocol between the executing half-calls in a session with a session scope and a traffic case scope which are using memory functions in which different records are storing pointers to a local memory function, said pointers being combined with a tag element by means of which locally stored data will be uniquely identified and in spite of not being real global data may still be utilized as global data during the duration of a specific session in which period the particular records exist.
Patent CA-2199506-A1 (CA)
Title: Optical fibre with quantum dots
Inventor: BURT MICHAEL GRAHAM
IPC: H01S5/30
Filed: 1995-09-29
Abstract: An optical fibre comprises a tubular glass cladding (1) with a central opening (2), filled with a colloidal solution of quantum dots (4) in a support medium (3). The quantum dots may be caused to produce luminescence in response to input optical radiation, for example to produce optical amplification or laser radiation. A waveguide with an active medium comprising colloidal quantum dots is claimed.
Patent CA-2200644-A1 (CA)
Inventor: NISHI KOJI
IPC: B41J2/345
Filed: 1997-03-21
Abstract: A thermal printhead assembly includes a metallic heat sink plate, a head circuit board mounted on an obverse surface of the heat  sink  plate,  and  a  control  circuit  board  electrically connected to the head circuit board for feeding control signals and power supply to the head circuit board.   The head circuit board is formed with a heating resistor.   A reverse surface of the heat sink plate is mounted on the control circuit board so that the heat sink plate is sandwiched between the head circuit board and the control circuit board.
Patent CA-2202046-A1 (CA)
Title: Joint structure and method of manufacture
Inventor: BESKE SCOTT R
IPC: B29C65/00
Filed: 1995-09-29
Abstract: A joint structure (1015) for connecting framing components (1030, 1040, 1050) such as sash members for a window (1010) is disclosed having separate functional and decorative junctions between adjacent framing components. The functional junction between components may be formed between opposing and abutting mitered mating surfaces (1054) defined at adjacent ends of the component, and a separate squared flange (1056) and cooperative recess (1059) may be formed on interior surfaces of the components for overlapping the mating surfaces and providing a decorative junction, for example, having the appearance of a mortise and tenon joint. The joint structure (1015) is particularly suited for use in custom or replacement applications whereby lineal extruded members formed of a heat weldable material may be cut to size having the aforementioned surfaces, and then heat welded together to form a custom sized framing structure such as a sash or frame for a window or door.
Patent CA-2203359-A1 (CA)
Inventor: BRACHAT PATRICE
IPC: H01Q9/04
Filed: 1997-04-22
Abstract: This invention relates to a flat printed antenna for transmission and/or reception of miclowave signals of the type that includes particularly - a plate of dielectric substrate - an earth plane formed by a first conductor layer deposited on a first face of the plate of dielectric substrate, - a radiating element (30) formed by a second conductor layer deposited on a second face of the plate of dielectric substrate, - means of feeding the antenna This antenna has a fundamental mode, in which it generates a radiation pattern having a maximum in the direction perpendicular to the plane containing the radiating element, and at least one higher mode, in which it generates a radiation pattern with low elevation, According to the invention, the radiating element has at least one slot (31 to 34) allowing the control of the resonance frequency of a chosen higher mode.
Patent CA-2205442-A1 (CA)
Title: Nsaid delivery employing a powdered hydrocolloid gum obtainable from higher plants
Inventor: PARASRAMPURIA JAGDISH
IPC: A61K9/20
Filed: 1995-11-30
Abstract: An oral-delivery pharmaceutical composition for reducing the gastric irritation effect of an NSAID in the upper GI tract of a mammal. The composition includes (a) a mucosal protective amount of a pharmaceutically-acceptable hydrocolloid gum obtainable from higher plants, (b) a dispersion-enhancing amount of another excipient and (c) a therapeutically-effective amount of an NSAID. Also disclosed is a process for preparing the composition and a method for reducing the gastric irritation effect of the NSAID by administering the composition. Also, disclosed is a composition particularly useful for preparing an aqueous suspension.
Patent CA-2207348-A1 (CA)
Title: Benzimidazole derivatives
Inventor: VOLKMANN ROBERT A
IPC: A61P25/28
Filed: 1997-06-09
Abstract: Disclosed are benzimidazole derivatives having the formula:                  (see fig. I) wherein, preferably, B is diethylmethyl, Y is hydrogen or methyl, R1 is ethyl, methyl or chloro and R2, R3 and R4  are each methyl.  These compounds and their pharmaceutically acceptable salts are useful in the treatment of CNS and stress related disorders.
Patent CA-2212913-A1 (CA)
Title: Automated method and apparatus for single sided hydration of soft contact lenses in package carriers
Inventor: KINDT-LARSON TURE
IPC: C08J7/02
Filed: 1997-08-12
Abstract: An automated means for hydrating and packaging a molded hydrophilic contact lens in one of the mold parts used to mold the lens is provided in which a first robotic assembly removes a plurality of contact lens molds from a production line carrier, each of the lens molds having a contact lens adhered therein. The first robotic assembly transports the molds to a first staging area where the lens molds are sandwiched between a lens mold carrier and a top chamber plate to form a first hydration carrier. The hydration carrier is then transported through a plurality of flushing or extraction stations wherein fresh deionized water is introduced into the hydration chambers at each hydration station to flush leachable substances from the hydration chamber. At each flushing station, fresh deionized water is introduced into the hydration chamber to remove previously extracted impurities and the products of hydrolysis. A final robotic dis-assembly device separates the top chamber plate and lens molds in the mold carrier plate, to provide fully hydrated lenses in a concave lens mold ready for transfer to inspection and packaging stations. Following inspection of the lens, the concave lens mold is dosed with saline and used to form part of the package used to distribute the lens.
Patent CA-2217828-A1 (CA)
Title: Molding affixed with wedged divider track
Inventor: NELSON THOMAS J
IPC: E04F19/06
Filed: 1997-10-09
Abstract: An elongated wedge shaped spline can be used for joining work pieces in a dovetail joint.  It can be used in joining a work piece, such as molding in a dovetailed joint. An expansion track having a pair of spaced apart flanges extending at a right angle from the front surface of the divider track is  first affixed to a surface. The wedge shaped spline is positioned between and in abutment with the upper portion of the spaced apart flanges. A fan shaped mortise on the back surface of a work piece is positioned over the wedge shaped spline between and abutting the upper portion of the spaced apart flanges. Pressure is applied on the front surface of the work piece for seating the work piece on the divider track, thereby forcing the wedge shaped spline between the flanges and spreading the flanges. The spread apart flanges engage the side walls of the fan shaped mortise for joining the work piece in a dovetailed joint with the divider track.
Patent CA-2218717-A1 (CA)
Title: Implantable cardiac stimulation device with warning system
Inventor: DENO DON CURTIS
IPC: A61N1/08
Filed: 1996-04-10
Abstract: A cardiac simulation system (10) including a patient warning apparatus (52). The cardiac stimulator (10) is an implantable pacemaker or defibrillator or combination which can be programmed to automatically alter the voltage of its output stimulus, in particular, to increase the voltage of the output stimulus whenever a condition exists requiring patient notification or warning. A specialized auxiliary lead (56, 78) with a shunt circuit (52) can be connected to a standard socket of a cardiac stimulator header and a standard lead, such as a cardiac pacemaker lead, can then be connected to the auxiliary lead. The auxiliary lead allows a stimulation electrode (54) to be implanted near excitable tissue in a secure fashion to assure stimulation of tissue. The auxiliary lead includes an apparatus (112) for shunting electrical current from the standard stimulation electrode implanted in or near the patient's heart to the auxiliary electrode in the presence of a stimulation pulse with a voltage at or above a preselected level.