baber/WOPTO huggingface dataset:
Patent CA-2036889-C (CA)
Title: Intraoral medication releasing system
Inventor: WOODWARD KATHLEEN A
IPC: A61J7/00
Filed: 1991-02-22
Granted: 1995-08-15
Abstract: A system for long term releasing of medication in the mouth, and especially an intra-oral fluoride releasing system (IFRS) for releasing fluoride over a long term for inhibiting the formation of caries in the teeth.  The system uses a holder for retaining and protecting intra-oral fluoride tablets or other intra-oral medicament in the form of fluoride releasing devices (IFRD).  The holder has a plate with retaining sides and retaining posts or a carrier. The tablet will fit within the holder.  The tablet may be located in the carrier, or ligature bands can be tied around the tablet in order to releaseably hold the IFRD within the holder.  The system causes a level of fluoride to be maintained over a long term within the mouth which has been found chemically effective for caries control and without causing severe irritation to oral tissues.  In another embodiment, the user of an orthodontic bracket is provided with a system where a post is attached to the orthodontic appliance, perhaps at the archwire slot, and the IFRD is placed within the mouth at a site removed from the orthodontic brackets themselves.  This unique combination provides for better oral hygiene and yet delivery of a fluoride to the mouth through the IFRD.
Patent CA-2038562-C (CA)
Inventor: LAPOINTE LARRY P
IPC: A47C1/0355
Filed: 1991-03-19
Granted: 1994-10-18
Abstract: ABSTRACT OF THE DISCLOSURE    A "three-way" recliner mechanism for use in a sofa or loveseat type of article of furniture is disclosed.  The present invention is a "zero wall proximity" recliner mechanism which is fully reclinable within the confines of its stationary frame assembly.  The recliner mechanism provides operative linkages for "tilting" the seat unit, "reclining" the seat back relative to the seat frame and for extending and retracting a leg rest assembly.   The present invention has a short stroke drive assembly having an actuator lever, concealed in the upholstery of the sofa or loveseat, which may be easily operated by the seat occupant to concurrently operate the leg rest assembly and generate "tilting" movement of the reclinable seat unit.
Patent CA-2045447-C (CA)
Title: Aromatics saturation process for diesel boiling-range hydrocarbons
Inventor: BHAN OPINDER KISHEN
IPC: B01J27/18
Filed: 1991-06-25
Granted: 2005-04-26
Abstract: In a process for the concomitant hydrogenation of aromatics and sulphur-bearing hydrocarbons in an aromatics- and sulphur-bearing, diesel boiling-range hydrocarbon feedstock, the feedstock is contacted at a temperature between 315 and 399 °C and a pressure between 40 and 168 bar in the presence of added hydrogen with a first catalyst bed containing a hydrotreating catalyst containing nickel, tungsten and optionally phosphorous supported on an alumina support, and, after contact with the first catalyst bed, the hydrogen and feedstock without modification, is passed from the first catalyst bed to a second catalyst bed where it is contacted at a temperature between 315 and 399 °C and a pressure between 40 and 168 bar with a hydrotreating catalyst containing cobalt and/or nickel, molybdenum and optionally phosphorous supported on an alumina support.
Patent CA-2047022-C (CA)
Title: Direct modulation phase shift keying (dm-psk) transmission system
Inventor: NAITO TAKAO
IPC: H04B10/58
Filed: 1991-07-15
Granted: 1995-02-14
Abstract: A direct modulation phase shift keying transmission system (DM-PSK transmission system) is disclosed for coherent optical fiber transmission in which an injection current supplied to a semiconductor laser is adapted to be directly modulated.  This system presents useful features in automatic frequency control, demodulation, and phase noise suppression.
Patent CA-2049287-C (CA)
Title: Expression of exogenous polynucleotide sequences in a vertebrate
Inventor: FELGNER PHILIP L
IPC: A61K35/12
Filed: 1990-03-21
Granted: 2005-03-29
Abstract: A method for delivering an isolated polynucleotide to the interior of a cell in a vertebrate, comprising the interstitial introduction of an isolated polynucleotide into a tissue of the vertebrate where the polynucleotide is taken up by the cells of the tissue and exerts a therapeutic effect on the vertebrate. The method can be used to deliver a therapeutic polypeptide to the cells of the vertebrate, to provide an immune response upon in vivo translation of the polynucleotide, to deliver antisense polynucleotides, to deliver receptors to the cells of the vertebrate, or to provide transitory gene therapy.
Patent CA-2051254-C (CA)
Title: Method of fabricating semiconductor laser device
Inventor: TAKAHASHI KAZUHISA
IPC: H01S5/02
Filed: 1991-09-12
Granted: 1995-02-14
Abstract: A method of fabricating a semiconductor laser device includes disposing a lower cladding layer, a superlattice active layer, an upper cladding layer, and a contact layer in the named order on a substrate, disposing, on resonator end surfaces, films containing a material which can cause disorder of the semiconductor superlattice structure at a high temperature, and causing current to flow between the substrate and the contact layer to cause laser oscillations.  The laser oscillations cause laser light to be generated, which is absorbed at the resonator end surfaces.  The resonator end surfaces are locally heated due to absorption of laser light, whereby the disorder-causing material is diffused into the resonator end surfaces and the semiconductor superlattice structure in the vicinity of the resonant end surfaces is disordered to thereby form window regions.
Patent CA-2055193-C (CA)
Inventor: CHUJO TAKAFUMI
IPC: H04L45/28
Filed: 1991-11-08
Granted: 1996-06-25
Abstract: A method for structuring a communications network based on an asynchronous transfer mode in which communications are held with the use of cells transferred between a node on the upstream side and a node on the downstream side.  The method for structuring the network includes a step for preparing a plurality of VPI conversion tables for converting VPIs of the cell input under normal communicating conditions and that of the cell input in the event of a failure and outputting the cell with the VPI converted.  The prepared VPI conversion tables are reorganized for each node and the reorganized VPI conversion tables are distributed to all nodes.  Then, an alternate route monitoring and switching virtual path is set up in each alternate route and a monitoring cell is periodically transmitted along the alternate route.  When a failure occurs, the VPI conversion table is switched over according to the pattern of the failure and the input VPI is converted in accordance with the switched VPI conversion table, and thereby, an alternate virtual path is set up in the relevant alternate route.
Patent CA-2060016-C (CA)
Title: Method of making polarization retaining fiber
Inventor: BERKEY GEORGE EDWARD
IPC: C03B37/012
Filed: 1992-01-24
Granted: 2002-04-09
Abstract: Disclosed is a method of making a polarization retaining single-mode optical fiber. There is initially formed a draw blank having diametrically opposed longitudinal apertures in the cladding glass parallel to the core glass region. The draw blank is drawn into a fiber under such conditions that the apertures close as the fiber is being drawn. The flow of surrounding glass, including the core glass region, toward the collapsing apertures, causes the core to assume an elliptical shape.      The apertures are of such cross-sectional area and spacing from the core that the core develops the desired aspect ratio.
Patent CA-2066985-C (CA)
Title: Coaxial cable end connector
Inventor: SZEGDA ANDREW
IPC: H01R24/40
Filed: 1992-04-24
Granted: 1996-07-02
Abstract: An end connector for connecting a coaxial cable to a port having a tubular body with front and rear end portions, a cable attachment  section associated with the  rear end portion  for attaching the connector to the cable, and a port attachment section associated with the front end portion for attaching the connector to the port.  The port attachment means includes a split ferrule defining a plurality of partially cylindrical resilient fingers, the  fingers  having  inward  arcuate  projections  defining  a circumferential ridge adapted to engage the port.   The split ferrule defines an inner surface which is inwardly tapered to enhance port to connector contact.  A locking sheath is disposed about the front end portion of the tubular body and is adapted to engage an outer surface of the split ferrule so as to restrict the resiliency of the resilient fingers.   The attachment section includes an interiorly threaded portion of the tubular body which is preceded by a non-threaded interior portion of the tubular body that is adjacent a rear end opening at the rear end portion of the tubular body.
Patent CA-2070569-C (CA)
Title: Microwave connector assembly connected easily to microwave circuit components
Inventor: KOSUGI YUHEI
IPC: H01R12/71
Filed: 1992-06-05
Granted: 1994-05-31
Abstract: A microwave circuit component (40) has terminals and is mounted on a principal surface (38) of a substrate (34) received in a cavity (45) of a housing (35) with a back surface (39) brought into contact with a bottom surface (44) of the cavity.  With a part projected outwardly of the cavity for connection to an external conductor, a contact pin (36) is movably received in an insulator support member (37) placed in the cavity and is urged to one of the terminals.  It is possible to bring the principal surface into contact with the bottom surface.  In this event, the contact pin may be urged to the back surface with the terminal extended from the principal surface to the back surface.
Patent CA-2072233-C (CA)
Title: Triazolopyrimidine derivatives which are angiotensin ii receptor antagonists; processes for preparing them and pharmaceutical compositions containing them
Inventor: BRU-MAGNIEZ NICOLE
IPC: A61P43/00
Filed: 1992-06-24
Granted: 2003-11-18
Abstract: The present invention relates to the derivatives of formula:   (See formula I) and to their tautomeric forms as well as to their addition salts and to their use in therapy, in particular for the treatment of cardiovascular diseases, especially for the treatment of hypertension, cardiac insufficiency and diseases of the arterial wall.
Patent CA-2072299-C (CA)
Title: Adaptive speakerphone system
Inventor: WANG WILLIAM
IPC: H04M11/04
Filed: 1992-06-25
Granted: 1996-11-12
Abstract: A  system  and  method  for  adjusting  telephonic  control signals transmitted from a central  station to a remote station.          The signals are automatically adjusted according to the response of  the  remote  station.   The  signals  are  adjusted  to  control speakerphone operation at the remote station in such a way as to provide communication with minimum audible annoyance.  The method is especially useful in a personal emergency response system in which the speakerphone is part of a subscriber station to achieve a greater voice range than a voice activated speakerphone system.
Patent CA-2072736-C (CA)
Title: Automatic coffee-making machine with direct-current motor drive and worm screws
Inventor: GROSSI LUCIO
IPC: A47J31/40
Filed: 1992-06-29
Granted: 2001-02-13
Abstract: An automatic coffee-making machine comprising in combined form a drive unit consisting of a direct-current motor (14) to the shaft (14a) of which is made integral a worm screw (14b) capable of actuating, in an axial direction, the sealed rod (16a) of a valve body (16) and of engaging with means (13,12) for transmission of movement with a slider (4), capable of moving at right angles to the axis of rotation of motor shaft (14a), there being made integral with such slider (4), by means of appropriate couplings (5,5a,9a,10a) a shaped member (9) integral with the free end of the rod of piston (8), there being also provided means (15,20) for the ejection and removal of the spent powdered coffee, as well as means (114) for monitoring and controlling the power input to motor (14), this making it possible to determine in an automatic manner the instants of start and end of the strokes of piston (8) during the phases of downward movement, insertion in the filter-holder, compression of the powdered coffee, upward movement and lateral rotation for discharge.
Patent CA-2073087-C (CA)
Title: Frequency modulation coherent optical communications system with continuous polarization scrambling
Inventor: CALVANI RICCARDO
IPC: G02F2/00
Filed: 1992-07-03
Granted: 1997-04-29
Abstract: A  coherent  optical  communications  system with continuous polarization scrambling, wherein such scrambling is obtained  by  combining  orthogonally-polarized  radiations  at different frequencies emitted by two independent sources in a transmitter, frequency modulated by a binary information signal. The  frequency  difference between the  two  sources  for  both emission conditions must be at least equal to the inverse of the bit period.   The system does not require the use of devices external to source in order to obtain polarization scrambling.
Patent CA-2077741-C (CA)
Title: Pleated drapery system
Inventor: LAWSON JACK M
IPC: A47H1/04
Filed: 1992-09-08
Granted: 1995-06-13
Abstract: A drapery hanging system for  "S"  type pleated drapery of a sinuous  folded configuration wherein the drapery is suspended from a traverse rod supporting a plurality of slidable carriers.   Adjacent carriers are interconnected by a tension connector to equally space the carriers when the drapery is closed, and abutments evenly spaced on the connector adjustably attached to the carriers permit the desired spacing of the drapery folds wherein extensive variations in drapery material width can be accommodated within a given drapery extended dimension and additional carriers may be easily added.  A drapery header tape utilizes a weight supporting lip whereby hangers depending from the carriers may be easily adjustably attached to the header tape at the desired location to permit support of the drapery at those locations most advantageous with respect to the drapery material width and drapery extended dimensions.
Patent CA-2082953-C (CA)
Inventor: DUNMIRE CHARLES W
IPC: E03C1/10
Filed: 1992-01-21
Granted: 1998-09-15
Abstract: A backflow preventor with increased performance, and increased ease of installation is provided. The check valves (12, 14) are configured to assist in redirecting flow along the desired pathway, when they are in the open position. The pathway is designed so that the number of changes of flow direction of the average streamline flow is reduced, preferably being about 180 degrees. The check valves (12, 14) are configured to reduce or eliminate divergent flow around the edges of the valve disks (32, 72). A check valve (12, 14) with a reduced hold-open pressure includes a biasing device, such as a spring (52,74) directly connected to a pivoting clapper (32, 72) as one end (64, 66) and to the valve body at the other end (66, 64). No intervening pivoting links are used between the spring (52, 74) and the clapper (32, 72). Preferably, the clapper (32, 72) is connected only by being pivoted (43, 43') to the valve body and by the spring (52, 74) connecting it to the valve body.
Patent CA-2084582-C (CA)
Title: Process for the production of mono-n-substituted tetraaza macrocycles
Inventor: PLATZEK JOHANNES
IPC: C07D405/14
Filed: 1992-12-04
Granted: 2005-09-20
Abstract: Process for the production of mono-N-substituted tetraazacyclododecane and tetraazacyclotetradecane derivatives of general formula I (see formula I) in which n is 2 or 3, and R is .beta.-carboxylalkyl or .beta.-carboxylate alkyl, .beta.-cyanide alkyl, .beta.-carboxamidoalkyl, .beta.-hydroxyalkyl, aminocarbonyl, aminothiocarbonyl, .beta.-sulfamoylalkyl radical or a second tetraazacyclododecane or tetraazacyclotetradecane molecule bound by a bis(p-hydroxy)-alkylene chain, and wherein carboxyl and hydroxy groups are present optionally in protected form. The process comprises reacting a compound of general formula II obtained from 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane (see formula II) with an .alpha.,.beta.-unsaturated ester, amide or nitrile, or an epoxide, isocyanate, isothiocyanate, aziridine or a bisepoxide, with or without solvent, at 0 to 220°C, within 1 to 48 hours, and optionally at a pressure up to 100 atm. The thus obtained reaction mixture, after cooling to -20°C to 80°C, is mixed with a mixture of water/organic solvent and stirred for 0.5 to 12 hours.      The thus formed (optionally to be isolated) intermediate products carrying a formyl group on a nitrogen atom are reacted by adding an inorganic base or an acid at 0 to 150°C, within 1 to 72, with stirring, optionally followed by subsequent removal of protecting groups, to obtain the end product of formula I, which can then be isolated preferably as the hydrochloride. The process provides improved yields of the product.
Patent CA-2084637-C (CA)
Title: Method of and apparatus for di can surface treatment
Inventor: YOSHIMURA TAKAYUKI
IPC: B05B13/02
Filed: 1992-12-04
Granted: 2002-09-10
Abstract: PURPOSE: In A DI can surface treatment, it is intended to prevent adjacent cans in each of a plurality of partitioned rows from getting into contact with each other so as to eliminate defects such as irregular wash and thus improve quality of can bodies such as the adhesion of coatings to be applied.       CONSTITUTION: For treating the inner and outer surfaces, inverted DI cans are fed on a conveyer with partitioners in a plurality of rows such that they are spaced apart in each row, and treatment liquid is sprayed against the travelling cans from above and below the center of each row. It is sprayed from above in a uniform and a full-corn pattern greater in area tan the top surface of the can and from below also in a full-corn pattern or in a fan-shaped pattern narrow in the conveyer width direction and greater in length than the can open end diameter. It is further sprayed against the travelling cans from side nozzles on the opposite sides of and symmetric with respect to the center of each row. The side wall of cans is thus washed without contract of adjacent cans in the progress direction. Washing force is increased in the space between adjacent cans in the progress direction to permit uniform surface treatment of the inner and outer surfaces of cans without washing irregularities.
Patent CA-2086793-C (CA)
Inventor: BEIER PETER-MICHAEL
IPC: C01D3/08
Filed: 1993-01-06
Granted: 2002-10-29
Abstract: In the multi-stage electrostatic separation of a crude salt containing kieserite and carnallite, sodium salicylate is used as a conditioning agent for separating potash and kieserite and also for purifying the potash.
Patent CA-2088494-C (CA)
Inventor: VICTOR CARL-GUSTAV
IPC: B60C/
Filed: 1992-06-11
Granted: 1998-08-11
Abstract: La présente invention vise l'utilisation d'un certain nombre de mors de serrage (17) pour monter un pneu (15) sur une jante (10) de roue de véhicule automobile; les mors de serrage en question peuvent être déplacés dans un mouvement de rotation pour exercer leur effet dans la direction axiale de la roue. Les mors de serrage prennent appui à la fois sur les talons (16) du pneu et sur les joues de la jante (12), ainsi que sur la base creuse (11) de la jante par l'intermédiaire d'un seul boulon de fixation (19) monté dans un trou (25) traversant la base de la jante. Pour prévenir toute rotation accidentelle des mors de serrage par rapport aux boulons de fixation, la base de la jante est pourvue de pattes ou de crêtes de fixation (17).
Patent CA-2089887-C (CA)
Title: Contact lens purification system
Inventor: BURRIS WILLIAM ALAN
IPC: A61L2/20
Filed: 1991-08-07
Granted: 1997-05-27
Abstract: Contact lenses are purified by contact with ozone in a compact system that includes an ozone generator (15), a purifying liquid in a lens chamber (20), and a pumping system (23) for flowing liquid and gas in a way that brings ozone dissolved in a pu-rifying liquid into contact with the lenses (30).  In some embodiments, undissolved ozone can also contact the lenses (30). Several preferred arrangements are shown for accomplishing the lens purification with such an ozone disinfection system having features such as a hydrophobic element (12) for isolation liquid from the generator (15), a timer (48) or an arrangement (40) to vent excess ozone from the generator (15).
Patent CA-2090139-C (CA)
Title: Glass material for treating hard surfaces, comprising particles of broken glass, and a process for making said particles
Inventor: GRONDIN ROGER
IPC: C09K3/14
Filed: 1993-02-23
Granted: 2006-01-24
Abstract: The process for making an abrasive material consisting essentially of particles of broken glass, comprises steps of (a) burning recycled glass material including heterogeneous glass pieces, paper and cardboard but excluding fluorescent glass or similar to eliminate paper and cardboard; (b) submitting the glass material obtained from step (a) to an electromagnet to remove unwanted metal pieces; (c) grinding the glass material obtained from step (b) to produce broken glass material; and (d) sieving the broken glass material obtained from step (c) to obtain said particles of broken glass with sieve mesh sizes of grade 4 to grade 60, said particles of broken glass having sharp edges.
Patent CA-2090652-C (CA)
Title: Apparatus for bracing a plurality of vertebras of the human spine
Inventor: METZ-STAVENHAGEN PETER
IPC: A61B17/56
Filed: 1993-03-01
Granted: 1998-05-19
Abstract: An apparatus for bracing a plurality of vertebras of the human spine, comprising at least two pedicel screws having an annular head including a slot which extends into the opening and including internal thread portions, a securing screw to be screwed in said slot, a relatively stiff threaded rod to be inserted into the opening in the head of the pedicel screw and secured by said securing screws, and adjusting nuts screwed on said rod and cooperating which said head.
Patent CA-2095482-C (CA)
Inventor: VOLLBRECHT MICHAEL
IPC: D06N3/00
Filed: 1993-05-04
Granted: 1999-09-14
Abstract: A method for producing imitation leather which can be injection molded from the back as well as such imitation leather itself which can be injection molded from the back are disclosed.      The imitation leather comprises a web layer with a decorative layer. In a first operational cycle, an open plastic framework is inserted into the web layer over the side of the web layer facing away from the decorative layer and subsequently, in one or a plurality of further operational cycles, one or a plurality of further open plastic frameworks are inserted. The surface of the web layer forms an adhesion layer for and at the same time a barrier against the injection molding compound. The resilience of the imitation leather is retained.
Patent CA-2100420-C (CA)
Title: Process for the stabilization of olefin polymers
Inventor: CASELLI GIANCARLO
IPC: C08J3/215
Filed: 1993-07-13
Granted: 2000-09-05
Abstract: Disclosed is a process for adding stabilizers and, optionally, additives to polyolefins in particle form obtained in liquid monomer by means of ziegler-Natta catalysts, wherein the addition of stabilizers and, optionally, additives is carried out in liquid monomer in a step that follows polymerization, but precedes the flashing of the liquid monomer, after the aluminum alkyl has been deactivated.