baber/WOPTO huggingface dataset:
Patent CA-2041069-C (CA)
Title: Catheter retainer
Inventor: HOLLANDS KEITH G M
IPC: A61M25/02
Filed: 1991-04-23
Granted: 2002-06-11
Abstract: None of the catheter retainers presently commercially available are entirely satisfactory. Surgeons therefore still quite frequently stitch a catheter to the skin of the wearer. This is frequently done when it is desired to drain a wound and yet hold the wound largely closed. This procedure of course involves a risk of infection and may be painful for the patient. Prior art catheter retainers are unsatisfactory for a number of reasons. Firstly the retainer may be size dependent. In other words, for catheters of different diameter, a different catheter retainer device may be required. Another disadvantage is that known catheter retainers are often hard and rigid, and therefore uncomfortable to wear. Wearing them may promote lesions or maceration of the skin and so give rise to problems other than that for which the patient is in hospital. Another disadvantage of known catheter retainers is that they are hard to clean. Also, when used with catheters which are of a silicone rubber, a material commonly used for catheters, the catheter tubes are hard to lock in position relative to the retainer because of the slipperyness of the tube. As a result, patients can inadvertently pull catheters out. Yet another disadvantage of known catheter retainers is that the clamping pressure which most of them need to apply tends to collapse the catheter or the drainage tube. In consequence, the efficency of drainage is adversely affected. The invented catheter retainer has a pad of medical grade adhesive capable of attachment to the body of a person who has to use a catheter. The pad carries a member to which is secured a cotton or synthetic fibre thread, or a thread of like material. In use the thread is wound around the catheter and fastened off by being attached to the member. The member is preferably slotted for this purpose.
Patent CA-2043312-C (CA)
Title: Electrical heater for footwear
Inventor: MACHER DAVID G
IPC: A43B7/02
Filed: 1991-05-27
Granted: 1996-06-18
Abstract: An electrical heater for footwear which is battery-powered and insertable into the footwear.  The electrical heater includes a heatable insole, an electrical conductor, and a battery pack.  The heatable insole comprises an upper outer fabric layer, a heater insert assembly, and a lower outer rubber layer.   The heater insert assembly is very thin and flexible and comprises highly heat conductive top and  bottom  layers  with  a  central  layer  sandwiched therebetween and having a heat conduction coefficient less than the heat conduction coefficients of the top and bottom layers,  therefore  acting as  a momentary heat dam and storage core.  A heating element is coupled to the bottom layer and has a surface area considerably smaller than the surface area of the bottom layer.
Patent CA-2045874-C (CA)
Inventor: VANDERVOORT JOHN R
IPC: F16D23/06
Filed: 1991-06-27
Granted: 1995-02-21
Abstract: A synchronizer for a changeable ratio gear box of the pin type employing a friction cone on the gear to be engaged.  The synchronizing ring employs pins positively drivingly engaging an axially movable dogged shifting clutch splined to the output shaft and axially engageable with the gear to be engaged.  In one embodiment, the synchronizer ring has a plurality of sprag members circumferentially spaced about the ring and pivoted thereon with the radially outer surface thereof tapered to frictionally engage said friction cone upon axial force application to the ring by the shifting clutch such that the sprag members are pivoted by camming action to increase the friction forces and effect synchronization without increase in the axial force applied to the ring.  In another embodiment the synchronizer ring has a plurality of sprag members circumferentially spaced within the ring and pivoted thereon with the radially inner surface thereon tapered to frictionally engage said friction cone upon axial force application to the ring by the shifting clutch such that the sprag members are pivoted by the camming action to increase the friction forces and effect synchronization without increase in the axial force applied to the ring.
Patent CA-2050658-C (CA)
Title: Dual hardware channels and hardware context switching in a graphics rendering processor
Inventor: PEASLEE JOHN M
IPC: G06F3/048
Filed: 1991-09-04
Granted: 1997-01-28
Abstract: An improved graphics processor (10) has rapid response to higher priority tasks. It is implemented with multiple channels of FIFO input circuits (60, 62 and 61, 63) and with task interrupt and context switching capability.  The graphics processor (10) servicing a first channel task is interrupted when a higher priority task is available in a second channel.  Context switching facilitates interrupting of the lower priority first channel task, then saving of the context of the first channel task, then performing high-er priority second channel task, then restoring the interrupted first channel task, and then continuing with the processing of the restored first channel task.  It is also imple-mented with concurrent downloading from a host computer (14) and processing by the graphics processor (10) and implemented with general purpose graphics processingcapability, including multi-level nested interrupts and nested subroutines.
Patent CA-2060062-C (CA)
Inventor: DOTSON MARK DOUGLAS
IPC: B42D15/00
Filed: 1992-01-27
Granted: 1996-09-03
Abstract: A document is provided having a solvent sensitive and/or pressure sensitive ink printed thereon which reacts to the application of a solvent and/or pressure to form a visible stain or image.  The ink includes a first composition of solvent soluble, water insoluble dye particles, a binder, and optionally, an opacifier. Alternatively, the first composition may be combined with a second composition which includes an encapsulated solvent and optionally a stilting material.  The first and second compositions may be printed on the document in separate steps or printed together as a self-contained composition.  The ink may be printed on the entire surface of the document or only on selected areas thereof.
Patent CA-2063003-C (CA)
Title: Secondary radar system
Inventor: HOFGEN GUNTER
IPC: G01S13/76
Filed: 1992-03-13
Granted: 2002-12-31
Abstract: Conventional secondary radar systems use mechanically rotating antennas to radiate a concentrated beam that rotates in a horizontal plane. Data exchange between ground stations and airborne transponders can only take place if the aircraft is struck by the antenna lobe.      The distance from the aircraft to the ground station is determined from the signal transit time.      Directional information is derived from the an-tenna position. The secondary radar system according to the invention uses an omnidirectional antenna, so that data can be exchanged between ground station and air-craft at any time. To determine the position of the aircraft, interrogation signals are transmitted by a single active ground station such that the reply signal from a transponder falls within the common system time frame of the ground station. The times of arrival of the reply signals at different ground stations are then directly proportional to the distances from the aircraft to these ground stations.
Patent CA-2063487-C (CA)
Inventor: SOUDANT ETIENNE
IPC: A61K8/00
Filed: 1992-03-19
Granted: 2006-01-31
Abstract: Composition cosmétique synergétique. Cette composition contient en association dans un véhicule cosmétique approprié, au moins un rétinoïde et au moins une dialkyl ou trialkylxanthine. Utilisation, pour lutter contre le vieillissement de la peau, en particulier de la peau du visage.
Patent CA-2064959-C (CA)
Title: Unit dose packaging
Inventor: REA LAURA
IPC: B65D83/04
Filed: 1992-04-02
Granted: 2000-09-19
Abstract: The present invention provides for a unit dose packaging for a solid pharmaceutical dosage form to be taken in a dosage regimen continuously for more than one weekly interval. The packaging comprises a series of blister packs, each of the blister packs containing the solid pharmaceutical dosage form for one weekly interval.      The solid dosage form is arranged in individual pockets on the blister pack to present and identify each dosage separately and to form a patterned sequence of dosages to allow for ease of compliance with the dosage regimen whereby non-compliance is immediately visually identifiable by reviewing the dosages remaining on the blister pack.
Patent CA-2065607-C (CA)
Title: Rotary printing machine equipped with an exchangeable cylinder
Inventor: SCHWEIZER MARTIN
IPC: B41F31/30
Filed: 1992-04-08
Granted: 1998-12-08
Abstract: The   rotary   printing   machine   includes   a   horizontal exchangeable cylinder (15) held between two side walls of the machine's  frame  (10)  by  holding  and driving means (40, 41) disengageable as required. A movable table (30) is arranged between the side walls of the frame (10) in order to enable the vertical shifting of the horizontal cylinder (15) with a view to  its  being  put onto the carriage  (20)  placed at  a level enabling the cylinder's withdrawal from the machine by shifting on a horizontal plane. (FIG.I)
Patent CA-2066642-C (CA)
Inventor: INSTANCE DAVID JOHN
IPC: G09F3/02
Filed: 1990-09-28
Granted: 2001-02-27
Abstract: A method of producing a succession of self-adhesive labels on a length of release material, the method comprising the steps of: (a) providing a length of release material which is coated on one side thereof with a layer of pressure-sensitive adhesive; (b) providing a length of laminar material; (c) disposing a succession of multi-laminar label pieces between the laminar material and the adhesive layer on the release material; (d) cutting through the length of laminar material as far as the release material around the label pieces so as to form a succession of self-adhesive labels on the release material; and (e) removing from the release material waste portions of the laminar material and of the layer of pressure-sensitive adhesive which surround the self-adhesive labels. The present invention also provides a self-adhesive label.
Patent CA-2069000-C (CA)
Title: Pressure transducer with flow-through measurement capability
Inventor: LEE SHIH-YING
IPC: G01L9/04
Filed: 1990-11-05
Granted: 2000-01-11
Abstract: A transducer measures the pressure of a fluid within a hollow conduit, typically one with a circular cross-section, having a central region that is deformed to a non-circular cross-section. This non-circular portion of the conduit displaces radially and repeatably without hysteresis in response to the pressure of the fluid in the conduit in a manner that corresponds to the pressure. A variable capacitor assembly (26), or a set of strain gauges (A, B, C,D) mounted on the exterior of the non-circular portion, produce an electrical signal proportional to the radial displacement or to the strain, respectively. In one capacitive form (26) a pair of electrodes (24) are mounted on opposite sides of the non-circular portion formed as free end portions of metallic sheet members with a central channel. In another capacitive form (26') electrodes (24') are mounted at one or both ends of lever arms which in turn are coupled to the non-circular portion with a set of flexure plates (34,36) to produce a mechanical amplification of the radial displacement.
Patent CA-2079820-C (CA)
Title: Mixed filter bed composition and method of use
Inventor: WHITE DONALD H JR
IPC: B01J20/20
Filed: 1992-10-05
Granted: 1998-07-28
Abstract: A mixed filter bed composition for purifying for human consumption water containing inorganic, organic and biological contaminants is provided.  The composition of the bed includes from about 40% to about 80% by weight of a carbonous sorbent, from about 5% to about 20% by weight of activated alumina, from about 5% to about 20% by weight of silica hydrogel, from about 5% to about 20% by weight of zeolite, and from about 0% to about 10% by weight of metallic components that generate metallic cations.  The invention provides potable water, free of organic, inorganic and microbial contaminants.  The invention also imparts the desirable filtration characteristics of traditional adsorbents, while avoiding increased biological contamination of drinking water during the filtration process.
Patent CA-2086063-C (CA)
Title: Hardenable copper alloy
Inventor: GRAVEMANN HORST
IPC: B22D11/06
Filed: 1992-12-22
Granted: 1999-12-14
Abstract: A hardenable copper alloy, suitable as a material for manufacturing casting rolls and casting wheels that are subjected to changing temperature stresses, is disclosed.      The hardenable copper alloy comprises 1.0 to 2.6% nickel, 0.1 to 0.45% beryllium, and the remainder of copper, inclusive of impurities resulting from manufacturing and the customary processing additives, and has a Brinell hardness of at least 200 and an electric conductivity of over 38 m/.OMEGA.~ mm2.
Patent CA-2088309-C (CA)
Title: System of sized bricks
Inventor: POESCHL JOHANN
IPC: F27D1/16
Filed: 1993-01-28
Granted: 1995-12-26
Abstract: The present invention pertains to a system of sized bricks for lining spherical bottoms, especially of metallurgical vessels, wherein the individual sized bricks are defined by six, essentially flat surfaces, namely, the fire-side surface, the cold-side surface, the two lateral surfaces, as well as the inner and outer surfaces, and the said sized bricks are intended for arrangement in concentric rings (1, 2, 3, ..., A, B, C, ...), wherein the sized bricks within each of these rings (1, 2, 3, ..., A, B, C, ...) join each other with their lateral surfaces, and wherein the outer surfaces of the sized bricks of one ring (1, 2, 3, ..., A, B, C, ...) border on the inner surfaces of the sized bricks of the next ring (1, 2, 3, ..., A, B, C, ...).  A simple modular design is obtained by providing two basic sizes of sized bricks, wherein the sized bricks of the first basic size have a defined distance (r) between the imaginary intersection line of the inner surface with the outer surface and the fire-side surface, and wherein the sized bricks of the second basic size have a defined distance, which is greater than in the case of the first basic size, between the imaginary intersection line of the inner surface with the outer surface and the fire-side surface, and by providing at least three positions within each basic size, wherein the sized bricks of different positions have lateral surfaces which are inclined differently to one another, and wherein the sized bricks of one position have parallel lateral surfaces.
Patent CA-2089905-C (CA)
Title: Cable having superior resistance to flame spread and smoke evolution
Inventor: DICKINSON PAUL RAYMOND
IPC: H01B11/00
Filed: 1993-02-19
Granted: 1997-05-06
Abstract: A communications cable (20) in which plastic material which is disposed about each transmission medium thereof is characterized by a relatively low dielectric constant. The cable exhibits relatively low flame spread and low smoke generation while maintaining circuit integrity through a fire retardant composition which includes a mixture of an organic resin and first and second inorganic oxide constituents. The first inorganic oxide constituent is characterized by a melting point in the range of about 350°C. The second inorganic oxide constituent comprises a highermelting devitrifying frit which begins to crystallize at about 650°C. Advantageously, when the cable is exposed to high temperatures, the mixture of the first and second inorganic oxide constituents melts and forms a crusty layer which is interposed between the covering plastic material and other components of the cable.
Patent CA-2092378-C (CA)
Title: Simulation-preventing turnstile
Inventor: LIBARDI MARIO
IPC: G07C9/02
Filed: 1993-03-24
Granted: 2002-09-17
Abstract: A turnstile provided with an electronic control unit having a photoelectric cell (8, 9) connected therewith, located downstream from the turnstile revolving member (3), in the user walking-through direction, in order to check if the user has actually walked through. There-fore, the turnstile has the ability to detect and issue a signal for, a simulated walking-through attempt per-formed by a user who actuates turnstile revolving member (3) without actually walking-through said turnstile, and it proves particularly effective for checking the arrival and the presence of personnel at the working posts.
Patent CA-2093132-C (CA)
Title: Process for the preparation of imidazo[4,5-c]quinolin-4-amines
Inventor: GERSTER JOHN F
IPC: C07D471/04
Filed: 1991-09-13
Granted: 2002-02-26
Abstract: A process is disclosed for preparing 1-substituted-1H-imidazo[4,5-c]quinolin-4-amines of formula (I). The process involves reacting a 1-substituted-1H-imidazo[4,5-c]quinoline-5-oxide with an acylating agent and reacting the product thereof with an ami-nating agent.
Patent CA-2096368-C (CA)
Title: Plasma sterilizer and method
Inventor: CAMPBELL BRYANT A
IPC: H05H1/46
Filed: 1993-05-17
Granted: 2004-03-30
Abstract: A plasma sterilizer and method employ essentially uncharged, highly reactive free radicals, atoms and excited molecules of a gas mixture to sterilize articles. The gas mixture includes oxidizing and/or reducing agents and is ionized into a plasma having ionization products that include highly destructive components in the form of charged particles and ultra-violet radiation. A plasma distribution device blocks the ultra-violet radiation and facilitates the recombination of the charged particles such that essentially uncharged, highly reactive free radicals, atoms and excited molecules of the gas mixture is delivered to the articles.
Patent CA-2097917-C (CA)
Title: Procede pour le traitement des eaux usees
Inventor: NATHWANI SURENDRA
IPC: C02F1/00
Filed: 1991-12-06
Granted: 1999-08-10
Abstract: On envoie les eaux usées contenant de la matière biodégradable depuis un réservoir d'entrée (10) vers un dispositif de mise en contact biologique tournant (DCBT) (15) avant de les décharger dans un réservoir d'humus (21) depuis une chambre contenant le DCBT. Le DCBT est divisé en sections séparées amont (15A) et aval (15B), la chambre (17) contenant la section aval étant alimentée en eau devant être traitée à une vitesse contrôlée, par la chambre (16) contenant la section amont. Une chambre d'équilibrage, permettant d'isoler la section aval du DCBT des variations de débit des eaux usées vers le réservoir d'entrée (10), comprend la section amont (15A, 16) du DCBT qui est capable de réagir face à des incursions de nature toxique dans les eaux usées.
Patent CA-2099849-C (CA)
Inventor: WINDER GARY C
IPC: B65D83/16
Filed: 1993-07-05
Granted: 1997-03-25
Abstract: An aerosol spray can and selectively-operable valve mechanism for dispensing the contents of the can to an environment are assembled to one another in operable relation using an adaptor structure which comprises an element snap-fit mounted to the aerosol can and a further element snap-fit mounted or otherwise affixed to the valve mechanism.  The elements are provided with mating screw threads, which permit the assembly to be readily and securely effected.  The adaptor elements are moulded parts constructed to be resiliently flexible to a degree to assist in mounting and demounting from the element to which it is to be attached and yet to resist such flexure when assembled together.
Patent CA-2100592-C (CA)
Title: Dispositif et procede de suppression des variations brutales de pression dans les vehicules, en particulier dans les vehicules terrestres
Inventor: GIRARD HERVE
IPC: B61D27/00
Filed: 1993-07-15
Granted: 2000-02-29
Abstract: L'invention concerne un dispositif de suppression des variations brutales de pression dans un véhicule climatisé ou ventilé, comprenant: un détecteur (16) des variations de, pression externe du véhicule délivrant des signaux représentatifs de ces variations, des moyens d'obturation des conduits d'aspiration d'air extérieur (2) et de rejet de l'air intérieur (4), un organe de contrôle (14) recevant les signaux du détecteur et commandant l'obturation des conduits (2, 4) à partir d'un premier niveau déterminé de variation de pression externe, cet organe commandant également la réouverture des conduits après que la variation de pression extérieure est descendue en-dessous d'un second niveau déterminé, des moyens d'équilibrage entre pression intérieure et pression extérieure de manière à maintenir la variation temporelle de pression interne au véhicule en-dessous d'une valeur imposée.
Patent CA-2102936-C (CA)
Inventor: LEONE PASQUALE
IPC: H03H17/06
Filed: 1993-11-12
Granted: 1999-03-30
Abstract: Digital samples of e.g. video data to be displayed on a computer monitor is processed by a video graphics circuit, which has the task of both aligning samples provided by an asynchronous sampler, and blending those samples, which usually suffer a series of the degrading effect as a low pass filter. The present invention describe a circuit that combines a sample aligner and a sample blender into one circuit in which the sample data passes through only one filter, and thus suffers only one low pass effect. In addition, only two multipliers, one delay, and one adder are required, instead of double the number as would be required by using the prior art. The total amount of circuitry is thus reduced and the quality of the resulting signal is improved.
Patent CA-2104437-C (CA)
Title: Method for purifying aqueous phases in hydrometallurigical extractions
Inventor: GASPARINI NOZIGLIA RENZO ALBER
IPC: C22B3/22
Filed: 1993-08-19
Granted: 1999-05-25
Abstract: A method in which a contaminated aqueous solution produced as a result of a hydrometallurgical extraction operation is passed through a filtering bed made up of hydrophobic materials, optionally of differing sizes and shapes, formed from materials including plastics and their derivatives, polypropylene, polyester, nylon, teflon, etc., so as to remove organic phase residues, solids, and other contaminants therefrom.  The method is complemented by a back wash stage using air and water to dislodge the contaminants from the bed to permit subsequent collection and/or treatment of these materials.  The method exhibits technical and economic advantages that are very significant in comparison to traditional methods.
Patent CA-2107605-C (CA)
Title: Paging receiver capable of avoiding disturbance raised on reception of an unnecessary message
Inventor: SHIBAYAMA HIROAKI
IPC: H04W84/02
Filed: 1993-10-04
Granted: 2000-02-08
Abstract: In a paging receiver capable of receiving and displaying a message on a display section, a receivable message format is predetermined not to receive an unnecessary message. The receivable message format is memorized as a predetermined message format in and read out of a random access memory when a reception format of a message is compared with the predetermined message format after coincidence between a reception call number and a preassigned call number assigned to the paging receiver. A plurality of predetermined message formats may be memorized in the random access memory while the preassigned call number may be a group call number.
Patent CA-2109859-C (CA)
Inventor: KOENIG JOSEPH M JR
IPC: E04F13/06
Filed: 1993-11-24
Granted: 1996-01-16
Abstract: A drywall corner-finishing accessory comprises three integrally joined, elongate strips, namely two relatively rigid, lateral strips and a relatively pliable, middle strip coextruded respectively from polyvinyl chloride having different durometer hardnesses.  Each lateral strip has a rib along one edge. At its opposite edges, the middle strip is joined to the lateral strips at the distal edges of the ribs, preferably being joined to lateral surfaces of the ribs, so that a broad surface of the middle strip is stepped from the lateral strips.  The accessory is flexible along the middle strip selectively to define a stepped, inside corner and to define a stepped, outside corner.  The rib of each lateral strip guides a drywall-finishing tool and has a grooved pocket opening toward the distal edge of such lateral strip to receive drywall-finishing material.