baber/WOPTO huggingface dataset:
Patent CA-2231718-C (CA)
Title: User operated switch and speed control device for a wet/dry vacuum
Inventor: METZGER JAMES I JR
IPC: H01H9/12
Filed: 1998-04-17
Granted: 2001-05-29
Abstract: A switch and speed control assembly for use in a wet/dry utility vacuum or blower is disclosed. The switch and speed control assembly provides a single rotary control actuator for turning the vacuum or blower on and off, for infinitely varying the speed of the motor, and for providing a momentary boost control. The switch and speed control assembly includes a thumb wheel fitted to the shaft of a voltage varying potentiometer, a snap action switch in operable relation to the exterior edge of the thumb wheel, and a compression spring contained beneath the thumb wheel. As the thumb wheel is rotated in an increasing "on" direction, the contacts of the snap action switch are closed, allowing electric current to flow to the motor of the wet/dry utility vacuum or blower. The voltage levels in the motor, and correspondingly the speed of the motor, are controlled by varying the potentiometer voltage through rotation applied to the thumb wheel. During boost operating conditions, the thumb wheel engages the compression spring such that when the force engaging the momentary boost condition abates, the thumb wheel returns to a normal operating condition. Additional features incorporated in the switch and speed control assembly include: mechanical stops for both the "Off" and "High On" modes; a static guard to protect the electrical components and the user from static discharges; fastener free mounting within wet/dry utility vacuum or blower housings; a configuration designed to prevent mechanical loads present on the thumb wheel from being transferred to the potentiometer shaft and other electrical components, such as the switch; and internal wire routing designed to minimize inductive influences between the wires.
Patent CA-2232890-C (CA)
Title: Pump to surface pump
Inventor: CONN KENNETH S
IPC: F04B53/14
Filed: 1998-03-20
Granted: 2002-05-14
Abstract: A reciprocating pump is provided for pumping subterranean fluids containing fine solids to surface. The pump comprises a pump barrel, piston and piston rod. The piston rod is suspended form reciprocating production tubing. The barrel is anchored in the casing of a well. A standing valve is located at the bottom of the barrel. The piston and travelling valve are located at the bottom of the piston rod for minimizing the dead-space between standing and travelling valves. Upper and lower stacks of hydraulic piston seal rings are positioned on the piston above and below the travelling valve for minimizing piston height. Each seal has radially flared lips at its leading edge. The piston spaced grooves formed therein, corresponding to the seal ring flared lips. At least the lower seal stack is axially movable so that the flared lips alternate between being compressed against the piston during the pumping stroke and being engaged with their respective grooves on the return stroke thereby relaxing the lips and releasing pressure trapped between the upper and lower seals. A barrel wiper at the lower seal ensures sand is excluded from the lower seal. Large bore flow passages are provided in the piston rod and valves while providing complementary piston rod and pump barrel means for enabling piston rod reciprocating motion while still rotary actuation of the anchor.
Patent CA-2234495-C (CA)
Title: Adjustable gauge downhole drilling assembly
Inventor: REID CHARLES M
IPC: E21B47/09
Filed: 1998-04-09
Granted: 2004-02-17
Abstract: A downhole drilling assembly including a housing having an upper end for connection to a drill string and a lower end, a fluid passage extending through the housing from the upper end to the lower end, a power unit contained within the housing, a drive assembly extending within the housing between the power unit and the lower end of the housing such that a mandrel chamber is defined between the drive assembly and the housing, a radially movable stabilizer associated with the housing, and an axially movable mandrel contained within the mandrel chamber, the mandrel being associated with a stabilizer actuator for causing radial movement of the stabilizer in response to axial movement of the mandrel.
Patent CA-2236495-C (CA)
Inventor: JOHNSON DONALD
IPC: H04L9/30
Filed: 1998-05-01
Granted: 2009-08-04
Abstract: A key agreement method between a pair of entities i and j in a digital data communication system, wherein each entity has a private and corresponding public key pair S i,P i and S j,P j respectively and the system, having global parameters for generating elements of a group, the method comprising the steps of: (a) entity i selecting a random private session value R i; (b) forwarding a public session value corresponding to the private session value R i to the entity j; (c) entity j computing a long term shared secret key k' derived from entity i's public key and j's private key utilizing a first function H i; (d) the entity j utilizing entity j utilizing the key k' and computing an authenticated message on entity identities i, j and entities public session keys and forwarding the authenticated message to entity i; (e) the entity i verifying the received authenticated message; (f) the entity i computing the long term shared secret key k' derived from the entity j's public key and i's private key in accordance with the first function H i; (g) the entity i utilizing the long term shared secret key k' and computing an authenticated message on the entities i and j identity information and the entities public session keys and forwarding the authenticated message to the entity j; (h) entity j verifying the received authenticated message; and (i) upon both the entities i and j verifying the authenticated message, computing a short term shared secret key utilizing a respective entity's session public and private keys.
Patent CA-2241373-C (CA)
Inventor: LAUS REINER
IPC: C07K19/00
Filed: 1996-12-23
Granted: 2013-04-09
Abstract: Disclosed are therapeutic compositions and methods for inducing cytotoxic T cell responses in vitro and in vivo. The therapeutic compositions consist of antigen presenting cells activated by contact with a polypeptide complex constructed by joining together a dendritic cell-binding protein and a polypeptide antigen. Also disclosed are expression vectors and systems for producing the polypeptide complexes.
Patent CA-2254442-C (CA)
Inventor: RIMMER JOHN WAYNE
IPC: E04F13/02
Filed: 1998-11-23
Granted: 2005-03-22
Abstract: A laminated wall structure, suitable for use in an exterior insulation finish system, comprises the following layers in the order provided:   i) a layer of building sheathing; ii) a layer of water-resistant adhesive which substantially completely covers and adheres to said building sheathing; and iii) a layer of thermal insulation adhered to said building sheathing by said water-resistant adhesive. The laminated wall structure, which can be used with all conventional building sheathings, can require less time to construct than known structures.
Patent CA-2257190-C (CA)
Inventor: MIN GUN DONG
IPC: H04W4/02
Filed: 1997-03-29
Granted: 2004-08-31
Abstract: L'invention concerne un système destiné à fournir des informations de type caractères à un objet mobile par le réseau de radiomessagerie. Le système comprend un récepteur GPS (32) recevant et démodulant des informations de position indiquant une position effective de l'objet mobile, une unité de radiomessagerie (37) à caractères destinée à recevoir et à démoduler des informations de commande et des informations de type caractères d'un réseau de radiomessagerie à caractères fournissant les informations sous forme de caractères, une base de données (38) d'informations en direct destinée à mémoriser les informations de type caractères reçues de l'unité de radiomessagerie (37) à caractères, une base de données (41) d'images animées destinée à mémoriser les signaux de commande reçus de l'unité de radiomessagerie (37) à caractères ainsi que des informations entrées directement par un opérateur, une base de données (33) d'informations de position destinée à mémoriser les informations de position relatives au mouvement de l'objet mobile et destinée à annoncer la position effective mobile de l'objet mobile, une unité centrale (42) destinée à extraire des informations utiles du récepteur GPS (32) et de l'unité de radiomessagerie (37) à caractères, ou destinée à extraire une annonce mémorisée dans la base de données (33) d'informations de position, sous la commande d'un programmateur dans le cas où les informations de position reçues du récepteur GPS (32) sont cohérentes avec les informations de position mémorisées dans la base de données (33) d'informations de position, une carte son (34) ainsi qu'une carte vidéo (39) destinées à produire en sortie les informations de la base de données (32, 33 et 37), et un serveur (43) de gestion d'annonces destiné à transmettre des signaux de commande à l'unité de radiomessagerie (37) à caractères par le réseau de radiomessagerie à caractères, afin de gérer à distance les informations mémorisées dans la base de données (41) d'images animées.
Patent CA-2258890-C (CA)
Inventor: WINTERS JACK HARRIMAN
IPC: H04B7/08
Filed: 1998-04-29
Granted: 2003-08-12
Abstract: A communication system and method, particularly adapted for use in adaptive antenna arrays, are presented. A plurality of signals containing a desired signal, interference, and noise are received through an array of antennas connected to a base receiving station. The signal arriving at each antenna is weighted according to computations which adjust those weights as a function of received interference and noise power in an unequal manner, based on the estimation accuracy of the interference and noise, which in turn depends on factors such as interference to noise power ratios and fading rate.
Patent CA-2266009-C (CA)
Title: Process for improving connection of an elastomeric, polymeric material to a substrate
Inventor: LEITNER HELMUT
IPC: C08J5/12
Filed: 1999-04-07
Granted: 2002-06-25
Abstract: Process for improving the connection of an elastomeric, polymeric material to a substrate during the shaping and volcanization thereonto, wherein the substrate is wetted in the region of connection with a liquid adhesion promoter composition, the coating so formed is solidified, the elastomeric material subsequently formed thereonto and solidified by volcanization, whereby an aqueous and/or alcoholic solution of a thiocyanatosilane is used as the adhesion promoter. The specific adhesive strength of the rubber compound on the substrate is significantly increased.
Patent CA-2271225-C (CA)
Title: Hydraulic elevator
Inventor: ORNDORFF KARL B
IPC: F15B15/16
Filed: 1999-05-07
Granted: 2006-11-14
Abstract: The invention relates to a hydraulic elevator having a hydraulic jack (9) which acts directly on the car. To reduce the amount of building work associated with this elevator concept, it is proposed that the hydraulic jack (9) should project through the car floor (10) into the car (1), the jack (9) and the car (1) being fastened together at the car floor (14) by means of a supporting plate (15) attached to the jack cylinder (10).  If the jack (9) is fitted with a mechanical synchronization device (22,24,25), the ends (35,35a) of the ropes or chains which until now have been fastened to the building also pass upwards through the car (1) to a crossbeam (27) to which they are fastened.
Patent CA-2283986-C (CA)
Inventor: JOHANSSON AKE
IPC: H04W16/18
Filed: 1998-03-10
Granted: 2003-09-02
Abstract: L'invention concerne un procédé et un appareil destinés à mesurer le volume du trafic téléphonique dans un système (100) de téléphonie cellulaire. Dans un premier mode de réalisation, un récepteur (150) se trouve dans la microcellule (120) proposée et mesure l'intensité des signaux émis par des stations mobiles (130) afin de déterminer l'importance du trafic de téléphonie cellulaire dans la microcellule (120) proposée. Dans un deuxième mode de réalisation de la présente invention, une station de base d'essai (500) se trouve dans la microcellule (120) proposée. Un processeur (510), communiquant avec le contrôleur (300) de la station de base qui dessert la macrocellule (110) entourant la microcellule (120) proposée, extrait des rapports de mesure de l'intensité du signal transmis au réseau (100) de téléphonie cellulaire à partir de stations mobiles (130) se trouvant dans la microcellule (120) proposée, et autour de celle-ci. Le processeur (510) utilise les mesures de l'intensité du signal pour calculer le volume du trafic de téléphonie cellulaire dans la microcellule (120) proposée. Dans un troisième mode de réalisation de la présente invention, une station de base d'essai (700) se trouve dans la microcellule (120) proposée et se voit affecter une identité de zone de localisation différente de celles des macrocellules (110) entourant la microcellule (120) proposée. Les stations mobiles (130) fonctionnant dans la microcellule (120) proposée, et autour de celle-ci, doivent s'inscrire dans la nouvelle zone de localisation et transmettre un rapport d'intensité du signal qui comprend l'intensité du signal de la station de base d'essai (700). Un processeur (710) connecté à la station de base d'essai (700) utilise les rapports d'intensité du signal reçus pour calculer le volume du trafic de téléphonie cellulaire dans la microcellule (120) proposée.
Patent CA-2285325-C (CA)
Inventor: BREUKERS JOSEPH JUDITH
IPC: A41D31/00
Filed: 1998-04-03
Granted: 2005-06-14
Abstract: L'invention concerne une matière résistant aux coupures et composée d'un support revêtu de particules solides, lequel support est placé sur un empilement d'étoffes, le revêtement déposé sur le support étant constitué de particules abrasives possédant un diamètre de l'ordre de 0,1 à 3 mm, et l'empilement d'étoffes étant supérieur à 1,5 mm. L'invention concerne également le support revêtu, sur lequel les particules abrasives ont été déposée au moyen d'un adhésif formant un film élastique après durcissement. Il est possible d'utiliser une étoffe de fibres d'Aramide ou de Nylon3, en tant que matière du support. L'adhésif préféré est un adhésif bitumineux ou un adhésif à base de polyuréthanne. On utilise la matière de l'invention notamment dans des vêtements de protection.
Patent CA-2289825-C (CA)
Inventor: ANTEKEIER STEVE A
IPC: B60J5/00
Filed: 1999-11-15
Granted: 2008-01-29
Abstract: A hinge and roller assembly for use in a roll-up door including a pair of leaves each forming a portion of a bearing socket, a bushing mounted in the bearing socket, a shaft slidably mounted in the bushing. The shaft mounts a roller on one end and the roller is adapted to roll in a track. A spring is mounted between the shaft and the bushing to bias the shaft axially toward the track. A releasable retainer on the bushing removably retains the bushing in the socket. Preferably, each of the leaves includes a plate through which the hinge is mounted to the door and an integral strap which is bent into a circular shape to define a portion of the socket and is attached at a distal end to the plate.
Patent CA-2292706-C (CA)
Title: Method for administering viable microorganism composition for poultry
Inventor: MARUTA KIYOSHI
IPC: A61K35/747
Filed: 1998-06-02
Granted: 2007-04-10
Abstract: A method for administering viable microorganism compositions for poultry, comprising: administering a viable microorganism composition comprising viable lactic acid bacteria belonging to Lactobacillu s reuteri and Lactobacillus johnsonii at the stage of newborn fledgling; and administering a viable microorganism composition which comprises a viable microorganism belonging to Bacillus subtilis.
Patent CA-2303470-C (CA)
Title: Seating furniture with integrated overhead lighting
Inventor: SUNATORI GO SIMON
IPC: A47C7/72
Filed: 2000-03-31
Granted: 2005-03-29
Abstract: A seating furniture comprises a seating for a human being, lighting means for illuminating the seating from overhead and for illuminating the environment around the seating such as a wall and a ceiling, mounting means for supporting the lighting means, spanning overhead from the left portion of the top end of the seating to the right portion of the top end of the seating, and a pair of diagonal beams. The seating for a human being may be a chair, a sofa or a sofa bed. The lighting means may comprise at least one point source of light, or at least one line source of light. The mounting means may be semi-circular, semi-elliptical or semi-rectangular,  and may have a circular, elliptical or rectangular cross section. The mounting means may be a translucent light pipe which diffuses light. This invention relates to seating furniture, and the principal use of the invention is for overhead lighting of the seating furniture.
Patent CA-2306857-C (CA)
Inventor: DE LA BRETONIERE RALPH ROGIER
IPC: H04N1/32
Filed: 1998-10-09
Granted: 2006-12-19
Abstract: L'invention concerne un procédé et un dispositif permettant de protéger le trafic de données entre une première station de transmission (11) et une seconde station de transmission (12). La transmission s'effectue suivant un protocole de données, de la seconde station vers la première station. Le procédé consiste à comparer le protocole de données avec au moins un protocole normalisé, et à acheminer vers la première station de transmission (11) uniquement les données dont le protocole est conforme au moins à un tel protocole normalisé. A cet effet, le dispositif (10) comporte une mémoire (14) dans laquelle les caractéristiques de données d'au moins un protocole normalisé sont enregistrées, et une unité de comparaison/d'acheminement (15) qui compare les caractéristiques ainsi mémorisées avec le protocole de données, et qui achemine ensuite uniquement les données dont le protocole est conforme au moins au protocole normalisé considéré.
Patent CA-2307732-C (CA)
Title: Method of an apparatus for producing hollow extrusions
Inventor: BUNNHOFER ERWIN
IPC: B29C48/90
Filed: 2000-05-08
Granted: 2007-08-07
Abstract: Hollow extrusions are formed by initially extruding a plurality of separate strands adapted to form segments of the completed hollow extrusion in their positions corresponding to the locations of those segments in the finished extrusion. Webs between these strands are then formed by feeding an afterflow of the melt at press pressure into the shaping channel in the calibrator downstream from the die zone so that under the pressure of this melt and the melt heat, the webs fuse to the ends of ribs of the separate strands.
Patent CA-2311196-C (CA)
Title: A fuel cell separator, a fuel cell using the fuel cell separator, and a method for making the fuel cell separator
Inventor: IIZUKA YASUNOBU
IPC: H01M8/02
Filed: 2000-06-09
Granted: 2005-08-16
Abstract: A fuel cell separator including (a) about 100 parts by weight of graphitized meso-carbon microbeads, (b) about to 35 parts by weight of one of a thermosetting resin and a thermoplastic resin, and (c) about 1 to 40 parts by weight of at least one carbonaceous material selected from the group consisting of graphite powder, carbon black, and fine carbon fibers. The fuel cell separator exhibits low electrical resistivity, low volume resistivity, superior gas impermeability, and superior dimensional accuracy without a graphitizing treatment after molding. A fuel cell using the fuel cell separators can be produced while saving energy using a simplified facility and has superior generation efficiency.
Patent CA-2311757-C (CA)
Title: Method and apparatus for distributing water to an ion-exchange membrane in a fuel cell
Inventor: CORLESS ADRIAN JAMES
IPC: H01M8/04
Filed: 1998-11-25
Granted: 2005-11-22
Abstract: A method end apparatus are provided for distributing water produced by the electrochemical reaction to an ion-exchange membrane in an electrochemical fuel cell. Water distribution within a fuel cell is improved to reduce membrane dryness near the oxidant stream inlet and to also reduce saturation of the oxidant stream near the oxidant stream outlet, thereby reducing electrode flooding. The method comprises periodically reversing the flow direction of an oxidant stream through a fuel cell flow field. The apparatus comprises an oxidant stream flow switching device (150) for periodically switching the flow direction of an oxidant stream through a fuel cell flow field (130). In one embodiment the apparatus further comprises a water recycler for capturing water from the oxidant exhaust stream and returning the captured water to the oxidant supply stream when the flow direction is reversed.
Patent CA-2312244-C (CA)
Title: Augmented retinal display with view tracking and data positioning
Inventor: MELVILLE CHARLES D
IPC: G02B27/00
Filed: 1999-01-13
Granted: 2003-07-08
Abstract: A scanned beam tracking system (32) is included in a virtual retinal display (10/50). An infrared light source (34/52) generates light for scanning the viewer's environment in the direction the viewer is looking. A visible light source (52) generates visible light which is scanned on a viewer's retina to generate a virtual image. A common scanning system (26) is used to scan both the non-visible light and the visible light. The visible light is directed into the viewer's eye. The non-visible light is directed away from the viewer's eye into the environment. Infrared reflectors (42) are positioned in the environment (40). When the infrared light from the virtual retinal display scans over a reflector the reflector directs the infrared light back toward the virtual retinal display. The current pixel of the scanning cycle when the infrared return light is detected corresponds to the position of the reflector.
Patent CA-2314271-C (CA)
Title: Pin arrangement control apparatus for bowling and connecting unit therefor
Inventor: TSUJITA MASAHIRO
IPC: A63D5/08
Filed: 1999-08-09
Granted: 2004-04-20
Abstract: A pin arrangement control apparatus, as well as a system therefor, capable of pin arrangement in any arbitrary pin arrangement patterns are implemented only by slightly modifying a pin setter machine equipped with only basic functions for performing the so-called tenpin bowling. A common pin setter machine equipped with means for setting the first-bowl ten pins, and means for gripping and elevating the set pins, sweeping with the rake and then rearranging the pins is additionally equipped with a selective pin gripping mechanism for gripping only pins corresponding to a pin arrangement pattern given from external. Thus, the pin setter machine is capable of pin arrangement in a specified pin arrangement pattern for rearrangement of the second-bowl pins.
Patent CA-2315198-C (CA)
Inventor: ELSEA DEBORAH L
IPC: B65D83/08
Filed: 1998-12-14
Granted: 2004-09-21
Abstract: A non-resealable package (30) for wet wipes (31) has a base layer (32b) and a flexible top layer (32a) which overlays a stack of wet wipes (31) and is sealed to the base layer (32b), and a slit (33) is formed in the flexible top layer (32a) along one side of the stacked lateral edges of the stack near a topmost-lying one of the wipes. The top layer (32a) is made of a selected flexible material and the slit (33) is positioned and cut with a selected length such that opposing slit en ds of the flexible top layer (32a) can be pushed apart by a user with fingers of one hand while keeping evaporation of solvent or fluid to a low level. The stack-edge positioned slit (33) allows wet wipes (31)to be withdrawn with one hand without the need to reseal the slit (33) opening. It is especially suitable for packaging of wet wipes (31) impregnated with solvent for use in an industrial environment.