baber/WOPTO huggingface dataset:
Patent CA-2093227-C (CA)
Title: Safety syringe with retractable needle
Inventor: MCGARY R KERN
IPC: A61M5/34
Filed: 1991-09-27
Granted: 2002-01-01
Abstract: An improved safety syringe (10) with retractable needle (30) is provided which allows retraction of the needle (30) into a hollow plunger (18) by additional forward pressure on the plunger (18) after the fluid is driven from the syringe (10). The present invention contemplates an improved syringe device with retractable needle (30) and a method of delivering fluid to a patient and retracting the needle (30) within the syringe (10) after the fluid is delivered. The syringe (10) preferably includes a hollow plunger (18) inserted into one end (16) of a cylindrical barrel (12) and a hollow needle (30) attached to the other end (14) of the barrel (12). Biasing means is attached to the barrel (12) for biasing the needle (30) toward the hollow plunger (18), and means is pro-vided for releasing the needle (30) into the hollow plunger (18) by applying additional forward pressure upon the plunger (18) af-ter the plunger is fully extended into the barrel (12). The present invention is particularly convenient for the operator to use in a one-handed fashion and is relatively uncomplicated and easy to manufacture.  Further, the present invention is non-reusable after the needle is retracted thereby preventing reuse of a potentially contaminated syringe.
Patent CA-2098615-C (CA)
Title: Constant boiling compositions of fluorinated hydrocarbons
Inventor: BIVENS DONALD BERNARD
IPC: H01B3/16
Filed: 1991-12-12
Granted: 2004-03-30
Abstract: Constant boiling mixtures of pentafluoroethane and difluoromethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, flee extinguishing agents, expansion agents for polyolefins and polyurethanes, and as power cycle working fluids.
Patent CA-2099918-C (CA)
Title: Method and system for naming and binding objects
Inventor: ATKINSON ROBERT G
IPC: G06F17/30
Filed: 1993-07-06
Granted: 2002-11-19
Abstract: A method and system for naming and binding data objects. In a preferred embodiment, a link to an object incorporated is stored as a moniker. A moniker is an object that encapsulates the information needed to access the incorporated data and provides methods which bind to the incorporated data.
Patent CA-2102001-C (CA)
Title: Reinforcement system for mastic intumescent fire protection coatings
Inventor: CASTLE GEORGE K
IPC: A62C3/06
Filed: 1993-10-29
Granted: 2001-04-17
Abstract: A reinforcement system for mastic intumescent fire protection coatings. Free floating carbon mesh embedded in the coating is used to reinforce the coating. Optionally, the carbon mesh may be used in conjunction with mechanically attached reinforcements.
Patent CA-2105526-C (CA)
Inventor: GRUDZINSKI RICHARD
IPC: E21B34/06
Filed: 1993-09-03
Granted: 2003-12-30
Abstract: An operating well such as an oil well is provided with a safety valve in the tubing thereof. A control cartridge controls the safety valve under the command of control signals transmitted from the surface. The control cartridge includes a housing mounted in the tubing and a receiver for receiving signals transmitted from the surface. A power supply is provided in the housing and is connected to an electronic control system, which control system is also connected to the receiver. A hydraulically operated actuator controls the safety valve, and a source of hydraulic fluid is provided in the housing and connected with the hydraulically operated actuator for operating the actuator. The source of hydraulic fluid is also connected to the power supply for operation thereof.
Patent CA-2105937-C (CA)
Title: Pyrazine preparation
Inventor: CHEN TEH-KUEI
IPC: C07D405/04
Filed: 1993-09-10
Granted: 2004-04-06
Abstract: A process for the preparation of trialkyl pyrazine compounds which comprises reacting an aqueous medium containing a 1-hydroxy-2-ketone, an ammonium compound and an aldehyde during which the 1-hydroxy-2-ketone is added dropwise to form a trialkyl pyrazine compound and isolating the trialkyl pyrazine compound.
Patent CA-2106227-C (CA)
Inventor: MACIEL VITOR GIORDANI
IPC: E02B17/02
Filed: 1993-09-15
Granted: 2005-04-19
Abstract: The present invention refers to a apace frame structure with widened base for supporting offshore platform, comprising four main legs (12) slanting in the lower (C) and the transition (d) regions, parallel in twos in the upper region (A), from where extend vertical sections (14), providing in a lower position a widened bass (20), endowed with dihedral external lateral faces, and fixed to the sea bottom through piles or group of vertical piles (22) fixed to the lower end of the referred to four main legs (12).
Patent CA-2108096-C (CA)
Title: Voltage-tunable photodetector
Inventor: GOOSSEN KEITH WAYNE
IPC: H01L31/0216
Filed: 1993-10-08
Granted: 1997-09-30
Abstract: A  tunable  monolithic  integrated  photodetector  (10) detects a selected wavelength of incident light within a wavelength range.   The photodetector comprises a multiple quantum well (MQW) filter means for receiving and filtering the incident light, and an MQW detector means for receiving light from the MQW filter means and for detecting the selected wavelength.  A fixed voltage bias V.DELTA. is disposed between the filter means and the detector means for causing the filter means  to  absorb  light  wavelengths  around  the  selected wavelength  to  thereby  enhance  the  detectability  of  the selected wavelength.  Further, a variable voltage bias Vp is selectively and proportionally imposed on both the filter means and the detector means for permitting tuning of the photodetector.   A fixed filter may also be employed for filtering the incident light so that light wavelengths which are outside the range of the photodetector are eliminated. Finally, a plurality of the photodetectors may be arranged in a two dimensional array for image processing.
Patent CA-2113323-C (CA)
Title: Sink with wheelchair access
Inventor: LAUGHTON JOHN
IPC: E03C1/18
Filed: 1994-01-12
Granted: 1997-08-19
Abstract: The invention concerns a sink for disabled persons.          The sink is designed for use in the kitchen or in the bathroom.          It includes at least one wide side ledge adequate for the placement of a faucet assembly, alleviating the problems associated with rear ledge faucet assembly placement.  The bottom of the sink is designed to accommodate one in a wheelchair or sitting position.
Patent CA-2114336-C (CA)
Inventor: NEWMAN EDWARD GEORGE
IPC: G10L15/10
Filed: 1994-01-27
Granted: 1999-11-30
Abstract: A compact, self-contained portable computing apparatus is provided which is completely supported by a user for hands-free retrieval and display of information for the user. The computing apparatus includes a voice-recognition module, in communication with a processor, for receiving audio commands from the user, for converting the received audio commands into electrical signals, for recognizing the converted electrical signals and for sending the recognized electrical signals to the processor for processing, the voice-recognition module being supported by the user.       The computing apparatus further includes a display in communication with the processor for receiving information from the processor and for displaying the received information for the user, the display being supported by the user whereby the user may operate the computing apparatus to display information in a hands-free manner utilizing only audio commands.
Patent CA-2115178-C (CA)
Inventor: ROMICK JEROME M
IPC: B65D5/66
Filed: 1994-02-08
Granted: 2004-11-16
Abstract: An improved medication dispensing and control assembly is disclosed in which a carton has sidewalls defining a medication dispensing opening, which carton has a bendable top wall connected to the sidewalls in such a manner as to allow the top wall to move between a position closing the medication opening and opened positions allowing removal of medication from the cartons. A frame is removably attached to the top wall so as to maintain planarity of the top wall to thereby facilitate carton opening and closing and maintaining the top wall portion in a closed condition and to resist any undesired bending thereof.
Patent CA-2118134-C (CA)
Inventor: FOSTER PETER J
IPC: H04M3/44
Filed: 1993-04-14
Granted: 1999-08-24
Abstract: Un centre de service téléphonique pour communications interurbaines est accessible par des abonnés au service. Les abonnés ont leur propre ensemble d'identificateurs associés de manière unique à plusieurs postes téléphoniques appelés auxquels ils désirent avoir accès. Le centre comprend un système de commande vocale (10) ayant une mémoire (16) pour stocker des représentations des identificateurs en des emplacements mémoire identifiés uniquement avec l'abonné. Le système de commande (10) comprend également un circuit d'annonce et un processeur (30). Le processeur (30) est sensible à la réception d'un appel entrant provenant d'un abonné afin de commander le circuit d'annonce qui demande à l'abonné de prononcer un identificateur associé à l'un des plusieurs postes appelés. Un dispositif de reconnaissance de la parole (48) est sensible à la réception de l'identificateur afin de déterminer si ce dernier est valide. Si l'identificateur est reconnu comme appartenant à l'abonné, le processeur commande un dispositif de numérotation directe à l'extérieur (24) afin de composer le numéro de téléphone du poste appelé associé à l'identificateur.
Patent CA-2120806-C (CA)
Title: Pressurized water closet flushing system
Inventor: MARTIN RAYMOND BRUCE
IPC: E03D3/10
Filed: 1994-04-07
Granted: 1998-10-13
Abstract: A pressurized water closet operating system comprises an accumulator vessel for storing water and air under pressure.  A flush valve controls the discharge of water from the vessel and comprises a cylinder having a lower end in fluid communication with the outlet of said vessel, a piston defining upper and lower chambers therein, an orifice in the piston, an aperture in the cylinder providing fluid communication between the interior of the accumulator vessel and the lower chamber in the cylinder, a valve on the piston normally closing the lower end of the cylinder so as to close the water outlet and openable upon upward movement of the piston to permit the discharge of water, and a normally closed flush  valve  actuator  openable  to  effect  fluid  communication between ambient air pressure and the upper chamber in the cylinder whereby a fluid pressure differential across said piston effects upward movement thereof and opening of the valve.
Patent CA-2122393-C (CA)
Title: Ligating clip applier
Inventor: BURBANK JOHN E III
IPC: A61B17/128
Filed: 1994-04-28
Granted: 2005-09-20
Abstract: There is described herein a ligating clip applier which contains: a handle assembly; a jaw assembly connected to the handle assembly and containing a shaft and a pair of jaws. The shaft defines a longitudinal axis which lies in a central horizontal plane. A magazine of clips is stored on one side of the plane. The jaws are positioned so that they are on the opposite side of the plane. This configuration allows the clip to be loaded into the jaws across the plane, resulting in greater visibility of the clips as they are loaded into the jaws.      Further, there is provided a jaw closure mechanism operable in connection with the jaws of this device so that the jaws contact the legs of a ligating clip first distally and then proximally. Thereafter the jaws are parallel at least once during closure, and the closure of the clip legs is, indeed, distal and then proximal. This improved procedure insures that in virtually all instances, the angle included between the clip legs at the crown is o o. Motion of the clip feeding and jaw closing mechanisms are accomplished without lost motion, via a pair of interengaged mechanisms connected by a single tension spring to one another, and operating separately from the body of the device. This configuration results in a more efficient, easier to operate more reliable clip applying device.
Patent CA-2131652-C (CA)
Title: Sulfur-containing powder-metallurgy tool steel article
Inventor: STASKO WILLIAM
IPC: H04L27/08
Filed: 1994-09-08
Granted: 2004-06-01
Abstract: A powder-metallurgy produced tool steel article of a hot worked, fully dense, consolidated mass of prealloyed particles of a tool steel alloy having a sulfur content within the range of 0.10 to 0.30 weight percent and a maximum sulfide size below about 15 microns.
Patent CA-2132286-C (CA)
Title: Surgical apparatus for applying surgical fasteners
Inventor: SORRENTINO GREGORY
IPC: A61B17/072
Filed: 1994-09-16
Granted: 2004-08-24
Abstract: A self contained gas powered endoscopic surgical apparatus is provided for placing lateral lines of surgical fasteners into body tissue. The apparatus includes an anvil member and a surgical fastener cartridge member mounted to the distal end of an elongated endoscopic portion. A tubular collar of the endoscopic portion moves distally to engage the anvil member and bias the anvil member and the cartridge member into cooperative alignment, thereby clamping body tissue to be fastened between the anvil member and the cartridge member. A self contained pneumatic system is optionally disposed in the surgical apparatus and is actuable to eject and/or form the surgical fasteners in the clamped body tissue. The apparatus further comprises a locking means for preventing firing of the instrument after it has been fired a predetermined number of times. A counter for displaying the number of times the apparatus has been fired may be provided. A firing interlock is also shown which prevents accidental actuation of the firing trigger. A clamping interlock is shown which prevents approximation of the jaws when the jaws are either misaligned or improperly inserted into the instrument. The instrument also includes means for disabling the actuation system after a cartridge has been fired and means for identifying a cartridge member having firing characteristics compatible with the pneumatic actuation system.
Patent CA-2135347-C (CA)
Title: Silicone-modified aliphatic polyester
Inventor: LEWARCHIK RONALD J
IPC: C08G63/695
Filed: 1994-11-08
Granted: 1998-12-08
Abstract: A silicone/polyester adduct comprises between about 5 and about 30 wt% of silicone adducted to between about 70 and about 95% polyester chains formed from polyfunctional acids plus polyfunctional acids and/or anhydrides.  At least about 50 mole percent of the polyfunctional acids and/or anhydrides are cycloaliphatic.
Patent CA-2136170-C (CA)
Title: Process for manufacturing a padded element
Inventor: PERRY BRIAN
IPC: B29C44/14
Filed: 1994-11-18
Granted: 1999-09-07
Abstract: There is disclosed a process for manufacturing a padded element. The process comprises the steps of placing a trim cover on a mandrel, the trim cover having a finished outer surface and an inner surface comprised of a thermoformable foam layer; heating the trim cover to a temperature sufficient to shape the thermoformable foam layer; shaping the trim cover to substantially the same shape as the mandrel to produce a shaped trim cover; transferring the shaped trim cover from the mandrel to a lower mold having shape substantially complimentary to the shaped trim cover; placing an upper mold over the lower mold to define a mold cavity; dispensing a liquid foamable polymeric composition in the mold cavity; and expanding the liquid foamable polymeric composition to fill substantially the mold cavity thereby forming the padded element.
Patent CA-2138260-C (CA)
Title: Fluid coupling device for a blood sampling unit
Inventor: SHINAR EILAT
IPC: A61B5/15
Filed: 1993-04-21
Granted: 2004-03-02
Abstract: A fluid coupling device (4) for coupling an in-line blood sampling unit (2) to a blood sampling container (6) includes a housing (40) having an anterior section formed with an open end capable of being applied to the blood sampling unit (2), a poste-rior section formed with an open end capable of receiving the blood collecting container (6), and a needle (51) extending axially of the housing. Both sections of the needle terminate sufficiently short of the respective ends of the housing such as to be protect-ed against accidentally puncturing a user's skin. The housing is attached to the blood sampling unit with the anterior section of the needle penetrating the blood sampling unit perpendicularly to the flow of blood therethrough.
Patent CA-2138352-C (CA)
Title: Sachet souple a ligne d'ouverture integree, son procede de fabrication et machine permettant sa fabrication
Inventor: BOCHET THIERRY
IPC: B65D75/20
Filed: 1994-12-16
Granted: 2008-03-11
Abstract: L'invention concerne notamment un sachet (1) comprenant au moins deux parois (2, 3) souples mais déchirables disposées en regard ; une marge (4) de solidarisation rigide des deux parois (2, 3) l'une contre l'autre, agencée pour délimiter d'une part la périphérie extérieure (6-9) du sachet (1) et d'autre part le contour externe (10-13) d'un volume central (5) destiné à contenir u n produit liquide, pâteux ou pulvérulent ; et une ligne (18) de plus faible résistance qui s'étend sur la marge (4) de solidarisation et qui est destinée à permett re l'ouverture du sachet (1) par suite de l'arrachement des parois (2, 3) ; une première extrémité (19) de la ligne de plus faible résistance (18) étant située à un bord périphérique (7) de la marge (4) de solidarisation ; la ligne de plu s faible résistance (18) présentant à sa seconde extrémité (20) une tangente (21) qui intercepte le contour externe (10, 13) du volume (5), ce sachet étant caractérisé en ce que: la ligne de plus faible résistance (18) présente une partie incurvée (27) à proximité de sa seconde extrémité (20) ; le volume (5) comporte à proximité de la seconde extrémité (20), une partie (33) en saillie dans la marge (4) et vers un bord périphérique (7) le long duquel s'étend la ligne de plus faible résistance (18), afin que l'ouverture (22) dans le volume (5) réalisée par déchirement constitue un bec verseur.
Patent CA-2139328-C (CA)
Title: Serpentine heat pipe and dehumidification application in air conditioning systems
Inventor: DINH KHANH
IPC: F24F1/00
Filed: 1993-06-30
Granted: 2003-11-25
Abstract: A heat pipe heat exchanger is provided in the form of a serpentine heat pipe (38) that does not have the ends of the individual tubes manifolded to one another via a straight pipe or via any other common connector. Instead, it has been discovered that heat pipes connected via U-bends (31) to form a continuous coil function adequately. The serpentine heat pipe may include in-tegral condenser and evaporator portions separated by a divider to form a one-slab heat exchanger, or separate evaporator and condenser coils connect-ed to one another by vapor and return lines to form a two-section heat pipe. A method of producing a serpentine heat pipe indludes providing a plurality of U-shaped tubes (30) which are interconnected to form a single serpentine heat pipe (38), one of the tubes having an open end, and inserting sufficient refri-gerant (34) in the one tube to allow each of the tubes to function as a separate heat pipe. The serpentine heat pipe heat exchanger may be used to increase the dehumidification capacity of an air conditioner.
Patent CA-2142375-C (CA)
Title: Cement head quick connector
Inventor: BARRETT STEPHEN P
IPC: E21B17/02
Filed: 1995-02-13
Granted: 2002-01-15
Abstract: A coupling apparatus for quickly connecting a cement head to a well casing includes an upper body adapted to receive a cement head while engaging a casing and further includes a lower body to fit around the casing end. The upper and lower bodies form an annular space for housing split ring segments which engage the casing. The upper and lower bodies can be adjusted axially to accommodate a variety of casing ends.
Patent CA-2149573-C (CA)
Inventor: DUPUY RONALD E
IPC: B60J10/79
Filed: 1995-05-17
Granted: 1998-07-21
Abstract: A sealing unit for a movable window of a vehicle. The sealing unit includes a one-piece, elongated, flexible sealing member having a first portion for mounting the sealing unit to a frame of a vehicle and a second portion for receiving the movable window, and a flexible, decorative trim associated with a surface of the sealing member that is viewable from the exterior of the vehicle when the sealing unit is mounted to the frame.  Both the sealing member and the decorative trim are sufficiently flexible to permit the sealing unit to conform to the contour of the frame when the sealing unit is mounted to the frame in a single mounting operation to provide a substantially continuous seal between the frame and the sealing unit.
Patent CA-2155034-C (CA)
Title: Process and apparatus for controlling the dewatering of suspensions
Inventor: CAMERON TIMOTHY IAN
IPC: C02F1/52
Filed: 1994-01-24
Granted: 2004-11-23
Abstract: The addition of polymeric flocculant or other chemical dewatering modifier to a suspension flowing through a service line (1) to a dewatering plant is controlled automatically in response to automatic determination of a filtration rate parameter. This may be determined using novel apparatus which includes a filtration assembly (5) comprising a chamber (7) with a filter element (4) mounted across its open end and water sprays (9) for washing the filter element In one embodiment it is preferred to assist back-washing with an air purge (13) while in another embodiment there are means (31, 36) for disassembling the filtration assembly to permit cleaning.
Patent CA-2170837-C (CA)
Title: Polypropylene composite film
Inventor: TANAKA YASUO
IPC: B32B27/32
Filed: 1996-03-01
Granted: 2001-08-14
Abstract: The polypropylene composite film of the present invention comprises (A) a crystalline polypropylene layer and (B) a propylene-1-butene random copolymer layer which is laminated on at least one surface of the crystalline polypropylene layer (A).  The propylene/1-butene random copolymer (B) has the following properties: (1) the copolymer comprises 50 to 95 % by mol of constituent units derived from propylene and 50 to 5 % by mol of constituent units derived from 1-butene,  (2) the intrinsic viscosity is 0.1 to 5 dl/g,  (3) the molecular weight distribution (Mw/Mn) is not less than 3, and (4) the parameter B value is 1.0 to 1.5.  The crystalline polypropylene layer (A) of this composite film may be unstretched, monoaxially stretched or biaxially oriented.  The polypropylene composite film has excellent heat-sealing properties, such as low-temperature heat-sealing properties and heat-sealing strength, and hot tack properties. The polypropylene composite film is almost free from surface tackiness and shows good slip properties and high blocking resistance at high temperatures, so that it is suitable for high-speed packaging.  In addition, this composite film also has good transparency and scratch resistance.  The polypropylene composite film of the invention having the above-mentioned excellent properties can be favorably used for packaging of foods, fill packaging and fiber packaging.