baber/WOPTO huggingface dataset:
Patent CA-2048473-C (CA)
Title: Data processor for maintaining coherency of cache memory data
Inventor: SUZUKI TOSHIAKI
IPC: G06F12/08
Filed: 1991-08-06
Granted: 1998-05-05
Abstract: A data processor for maintaining coherency of data in a cache memory.  The processor includes two memory-data-coherency maintaining devices and an operation mode changing device for changing a combination of operation modes of the maintaining devices, thereby enabling one kind of data processor to be adaptable to a plurality of different system structures and optimum memory-data-coherency to be maintained.
Patent CA-2049154-C (CA)
Title: Isolated ink feed mechanism
Inventor: GUARALDI GLENN A
IPC: B41F13/00
Filed: 1991-08-14
Granted: 1994-07-26
Abstract: An offset printing apparatus rotates the plate cylinder steadily with a minimum of torsional interference caused by impact of the reciprocating ductor roll with the vibrator roll.  The vibrator roll is driven to rotate independently of rotation of the other rolls which lead successively to the plate cylinder.
Patent CA-2051232-C (CA)
Title: Text mail system using isdn and isdn communication terminal device for use therein
Inventor: KOTAKE SHIROU
IPC: H04M1/53
Filed: 1991-09-12
Granted: 1994-10-25
Abstract: A text mail system in which a pseudo destination subaddress randomly generated at a call receiver side at the time of receiving an incoming call from an integrated services digital network is used to manage the storing or reading out operation of various sorts of messages in a mail box.  The text mail system, which uses the pseudo destination subaddress as a box number based on the property that the pseudo destination subaddress is randomly given for each incoming call, can secure a high mail confidence.
Patent CA-2051555-C (CA)
Title: Electrophotographic recording apparatus
Inventor: TSUDA YUKIO
IPC: G03G15/04
Filed: 1991-09-17
Granted: 1995-10-31
Abstract: An electrophotographic recording apparatus includes an exposing device for exposing a photosensitive member according to image data, a developing device for devel-oping an electrostatic latent image created on the exposed photosensitive member, and a fixing device for fixing the developed image, and the exposing device includes an image data processing circuit for converting discontinuous black-level pixels included in the pixels of the image data which is constructed by a plurality of pixels selectively including black-level pixels and white-level pixels to a white level to create processed image data, and a line scanner for line-scanning the photosensitive member by a plurality of times according to the image data and the processed imaged data each time an image of one line is created so as to create an electrostatic latent image corresponding to a combina-tion of the image data and the processed image data on the photosensitive member.
Patent CA-2051869-C (CA)
Title: Multiple outlet locking receptacle
Inventor: MURPHY GLENN L
IPC: H01R25/00
Filed: 1991-09-19
Granted: 2001-02-27
Abstract: A multiple outlet locking receptacle has a molded insulating body which includes a housing portion and a mounting flange portion formed integrally therewith.      The housing portion has a front face thereon. The receptacle includes multiple groups of internal contact elements disposed in the housing portion of the body rearwardly of the front face thereon. The multiple groups of contact elements define multiple electrical outlets adapted for receiving multiple outlet plugs.      Multiple arrays of plug blade receiving apertures are defined in the front face of the receptacle body housing portion. The multiple arrays of apertures are aligned with the multiple groups of internal contact elements and have arcuate configurations for accommodating insertion of the blades of the multiple outlet plugs through the apertures into electrical contact with the internal contact elements and then rotation of the blades relative to the internal contact elements into locking relation therewith.
Patent CA-2069282-C (CA)
Title: Debris monitoring system
Inventor: PARKINSON JAMES RICHARD
IPC: G01N33/28
Filed: 1992-05-22
Granted: 2002-12-03
Abstract: A debris monitor apparatus and method and optical sensor apparatus and method that use the Faraday Effect to detect accumulation of debris on a magnetic probe. The probe contains a magnet and the optical sensor and is immersible in the fluid. As debris accumulates on the probe, the magnetic field changes. The optical sensor includes a magneto-optic material located within a portion of the changeable magnetic field, preferably near a node of the magnet. Means are provided to bi-directionally address the sensor magneto-optic material with linearly polarized light. Means are also provided to convert rotation of the light polarization angle into a modulation of the light's intensity. An electro-optic transducer converts the light intensity into electrical signals that indicate the quantity of debris accumulation on the probe, with a differentiated value of these signals with respect to time yielding rate of debris accumulation on the probe. Means are provided to calculate a ratio defined by the difference over sum of two bi-directionally transmitted pulses to provide a self-referenced output dependent only on the change in magnetic field caused by accumulation of debris on the probe. The changed magnetic field provides an inherent real-time memory of the accumulation of debris on the probe, which also permits multiplexed data collection.
Patent CA-2072908-C (CA)
Inventor: KIRWAN LEE D
IPC: F17C13/04
Filed: 1992-07-02
Granted: 1995-11-07
Abstract: A valve assembly operable to fill a container with pressurized gas from a source thereof and to vent the cylinder and associated passage means in the valve assembly to atmosphere, the cylinder having a valve with a valve member spring biased to a closed position.  The valve assembly has a valve housing having a main chamber, a supply port connectable to a source of pressurized gas, a fill port connectable to a cylinder to be filled, and a vent port communicating with the atmosphere, said supply port, fill port and vent port communicating with the main chamber.  A valve body is mounted in the main chamber for movement therin and having a first passage operable in a first position of the valve body to connect the fill port to the vent port, second passage operable in a second position of the valve body to connect the supply port to the fill port, and a third passage operable in a third position of the valve body to connect the fill port to the vent port.  A valve opening member movably mounted in the valve housing and acutated by the valve body when the body is moved to the second and third positions to engage and move the valve member of a cylinder secured to the fill port to an open position.  When a source of pressurized gas is connected to the supply port and a cylinder in connected to the fill port, positioning of the valve body in the first position causes the fill port to be vented through the first passage and the vent port to the atmosphere, positioning the valve body in the second position causes the cylinder to be filled with gas from the source thereof, the gas passing through the second passage means, the fill port and the now-open cylinder valve into the cylinder, and positioning of the valve body in the third position causes the cylinder to be vented through the open cylinder valve, the fill port, the third passage means and the vent port to the atmosphere.
Patent CA-2073296-C (CA)
Inventor: WU CHING-CHANG
IPC: A63B55/60
Filed: 1992-07-07
Granted: 1998-09-15
Abstract: A golf  cart wheel axle assembly having a holder plate connected to the frame of a golf cart to hold a wheel axle by a lock screw, wherein the wheel axle  has  a  tapered  rod  and  a  rectangular  block longitudinally aligned and respectively inserted into a tapered hole and a  rectangular hole on the holder plate; the lock screw is screwed through the tapered hole into a bolt hole on the tapered rod, having a split  circular  projection  engaged  into  an  annular groove insdie the tapered hole.
Patent CA-2074730-C (CA)
Inventor: MERRILL EDWARD W
IPC: B01J20/32
Filed: 1991-02-28
Granted: 2002-02-19
Abstract: This invention pertains to a method for im-mobilizing polyethylene oxide (PEO) star mole-cules in the form of hydrogels. The PEO star mole-cules are biocompatible and demonstrate non-thrombogenic properties. As such, the PEO star molecules have numerous uses for biomedical ap-plications. The hydrogels contain a high percentage of terminal hydroxyl groups for attachment of af-finity ligands and can be used for separating and purifying therapeutic proteins.
Patent CA-2080316-C (CA)
Title: Practice projectile
Inventor: STRANDLI K RE R
IPC: F42B8/14
Filed: 1992-11-13
Granted: 1996-10-29
Abstract: A practice projectile free of any explosive or bursting charge, adapted for shooting from aircraft against ground targets or for other kinds of practice shooting and compris-ing a hollow shell, a projectile base and a nose portion which engages the shell along a circumferential partition therebetween, wherein the base is a separate part relatively to the shell, whereby a circumferential partition between the base and the shell is formed. The base is fastened to or made integral with a rod or a tube which extends centrally and axially through the shell and is fastened to or made integrally with the nose portion, whereby the rod or tube keeps the projectile together as a unit, and the rod or tube, or a fastening member thereof situated on the nose portion, has a weakened portion which axially is situated approxi-mately at the level of the partition between the shell and the nose portion.
Patent CA-2094622-C (CA)
Title: Mesh roof facing system
Inventor: VAN AUKEN RICHARD H
IPC: E04D11/02
Filed: 1993-04-22
Granted: 1996-02-13
Abstract: A roofing system includes a strong nonmetallic mesh fabric placed loosely over an array of purlins, and secured fast at the periphery of the roof.  The fabric, which serves to support roof insulation between the purlins, also has  sufficient strength to protect workers  laying the insulation, or roofing panels over the insulation, as well as those on the ground below, in case of an accident.
Patent CA-2094864-C (CA)
Title: Lining of sewers and the like
Inventor: FLORENCE GEOFFREY LEWIS
IPC: E03F3/04
Filed: 1993-04-26
Granted: 2004-06-22
Abstract: Sewer lining comprising a plurality of hollow tubular lining members and a method of lining a sewer with such members. Lining members are particularly adapted for use in the lining of non-man-entry sewers by means of resilient bands sealing over the engagement between adjacent lining members. Lining members have a spigot at one end and a socket at the other. Tapering of the socket and lining of it with a deformable element serves to locate the spigot and provide an internal seal in use.
Patent CA-2095545-C (CA)
Title: Fuel additive compositions containing polyisobutenyl succinimides
Inventor: CHERPECK RICHARD E
IPC: C10L1/16
Filed: 1992-09-11
Granted: 2003-05-13
Abstract: A fuel additive composition comprising (a) a polyisobutenyl succinimide derived from ethylenediamine or diethylenetria-mine; wherein the polyisobutenyl group has an average molecular weight of about 1200 to 1500 and (b) a nonvolatile paraffinic or naphthenic carrier oil, or a mixture thereof.
Patent CA-2098325-C (CA)
Title: Multi mold cavity travelling mold tunnel for molding profiled pipe and mold blocks therefor
Inventor: LUPKE MANFRED A A
IPC: B29C48/11
Filed: 1993-06-14
Granted: 1999-11-16
Abstract: A travelling mold tunnel for the vacuum forming of profiled tube from extruded parison of molten thermoplastic material includes a plurality of parallel mold cavities with a vacuum applied to each of the mold cavities.
Patent CA-2109084-C (CA)
Title: Biofilm reduction method
Inventor: COSTERTON JOHN WILLIAM FISHER
IPC: C12N13/00
Filed: 1992-05-01
Granted: 2004-02-24
Abstract: A method of killing microorganisms which form a biofilm on a tissue or implant surfaces in a patient, and Which are refractory to a biocide at a dose which effective to kill the microorganism in planktonic form. The effect of the biocide is potentiated, to an effective killing level, by applying an electric field across the surface containing the biofilm.
Patent CA-2113530-C (CA)
Title: Process for the preparation of polyhalogenated benzotrichlorides and benzoyl chlorides and new trihalogeno-benzotrichlorides and -benzoyl chlorides
Inventor: MARHOLD ALBRECHT
IPC: A23K20/195
Filed: 1994-01-14
Granted: 2004-08-03
Abstract: Polyhalogenated benzotrifluorides can be reacted with chlorides from the series of Friedel-Crafts catalysts to give the corresponding benzotrichlorides, which can be hydrolysed by water in the presence of iron(III) chloride to give the corresponding benzoyl chlorides. These are suitable as intermediate products for the preparation of active compounds for medicaments and feed additives.
Patent CA-2114896-C (CA)
Title: Tagging and identifying asphalt additives
Inventor: FUERHOLZER JAMES
IPC: G01N33/42
Filed: 1994-02-03
Granted: 1998-08-25
Abstract: A tag  is  added to  an  asphalt  additive,  typically an anti-stripping agent.  The tag is mixed with other components of an asphalt composition and melt processed at 300°F (149°C) or above to produce an asphalt composition.  Presence of the tag to identify presence of the additive is performed by dissolving the asphalt portion of the composition in a water-immiscible solvent and then extracting the tag in an acidic aqueous solution and developing a color with a diazo compound.
Patent CA-2117231-C (CA)
Inventor: GATES JAMES T
IPC: A61N1/362
Filed: 1994-03-08
Granted: 2003-10-07
Abstract: A substrate for use in a pacing lead having a sintered porous platinized steroid eluting electrode. The substrate has at least one raised surface which provides an advantageous mounting portion for the sintered electrode. In the preferred embodiment the mounting portion is nailhead-shaped. The present invention provides an electrode produced with increased dimensional consistency, mechanical strength and impedance as compared to electrodes having a straight wire substrate. Also disclosed is a method of manufacturing such an electrode.
Patent CA-2118719-C (CA)
Title: Data transfer method and apparatus having dual frequency operation
Inventor: PAGGEOT BRUCE
IPC: H04Q7/32
Filed: 1993-07-29
Granted: 1998-12-22
Abstract: The present disclosure includes a discussion of a data transfer system. The data transfer system is responsible for tranferring data to and from a radio transceiver (107) and all the corresponding peripheral device (111, 113) contained in within the radio telephone (103). The data transfer system includes a data bus (109), a master controller within the transceiver (107) and a peripheral controller within each of the peripheral devices. The data transfer system has an initialization state and a operational state. During the initialization state the data bus (109) operates at a lower frequency than during the operational state. The lower speed increases the time allowed for the assignment of the unique addresses for each of the peripheral controllers. Upon detecting completion of the initialization state, the mater controller conducts the change to the operational state.
Patent CA-2120656-C (CA)
Inventor: CHAPMAN WILLIAM A
IPC: E01F9/011
Filed: 1994-04-06
Granted: 1999-10-26
Abstract: Method and apparatus for joining a first structural element, having a passageway formed therein which opens to the exterior thereof, to a second element. A plurality of members are assembled into a joining device which is then nested inside of the passageway. The members are than moved with respect to each other to enlarge the size of the joining device so that the members engage the wall of the passageway in supporting contact therewith. The members of the enlarged joining device are then secured together into a unitary support block, with the members in supporting contact with the passageway wall. The unitary support block is connected to the second element. Unique member components, member securing means, member moving means, and the like form a new and useful apparatus.
Patent CA-2121529-C (CA)
Title: Picture intermediate frequency circuit
Inventor: TANAKA YASUSHI
IPC: H04N5/44
Filed: 1994-04-18
Granted: 1999-08-17
Abstract: To provide a picture intermediate frequency circuit capable of preventing the occurrence of intermodulation beats in a strong electrical field, without affecting in any way the original picture signal. A picture intermediate frequency signal output from the tuner 2 is supplied to a pre-amplifier 5 via an adjacent sound trap circuit 3, and a picture trap circuit 11 and 12, both of which are connected in series. Trap circuits 11 and 12 each have an attenuation point in the upper and lower frequency components equivalent to the frequency difference of the adjacent picture signal frequency with respect to the picture intermediate frequency signal, and trap the ~ 6MHz frequency components of the picture intermediate frequency signal. This allows the trap circuits 11 and 12 to previously remove unnecessary adjacent picture signals before they reach the pre-amplifier 5. As a result, the high frequency component generated in the non-linear region of the pre-amplifier 5 in a strong electrical field is prevented from interfering with the high frequency component of the unnecessary adjacent picture signals to produce cross-modulation signals, thus eliminating the occurrence of cross-modulation beats.
Patent CA-2122457-C (CA)
Title: Recipient extensible
Inventor: MELROSE DAVID MURRAY
IPC: B65D83/00
Filed: 1992-10-28
Granted: 2001-02-27
Abstract: Récipient (1) semi-rigide présenté dans la figure 1, comprenant une partie pliable (7) constituée de plusieurs panneaux rhomboïdes (112) formant un cône tronqué. Lesdits panneaux (112) sont courbés en arc par rapport au substrat (111) du cône tronqué d'interconnexion dans les directions transversale et longitudinale de sorte que lorsque les panneaux (112) résistent à l'allongement induit par la pression interne du récipient, ils sont capables de se dilater transversalement pour permettre de plier la partie pliable (7) sous l'effet d'une force d'écrasement longitudinale, et pour résister à l'allongement lorsque le récipient est replié. D'autres formes de panneaux (112) sont également décrites.
Patent CA-2125224-C (CA)
Title: Methods and composition for controlling scale formation in aqueous systems
Inventor: PEREZ LIBARDO A
IPC: C02F5/10
Filed: 1994-06-06
Granted: 2003-09-30
Abstract: A method of controlling the formation and deposition of scale forming salts in a circulating aqueous system is described wherein a treatment solution of a substoichiometric amount of polyepoxysuccinic acid in combination with agaric acid is employed.
Patent CA-2132285-C (CA)
Inventor: ARATO GEORGE J
IPC: B01D61/04
Filed: 1994-09-16
Granted: 2000-05-23
Abstract: The invention provides a process and apparatus for on-site purification of photofinishing effluent produced by mini-lab photofinishing apparatus and the like. The process includes passing the effluent through an adsorbent to adsorb inorganic and organic compounds to produce a primary filtrate fluid. The primary filtrate fluid is directed to a membrane filter which in turn discharges relatively clean permeate fluid which passes through the membrane filter as a secondary filtrate fluid, and rejects concentrate fluid that does not pass through the membrane filter. Preferably the effluent is passed through a plurality of adsorbents of which at least one adsorbent adsorbs inorganic compounds, and at least one other adsorbent adsorbs organic compounds. The adsorbent is provided in containers, each of which has an inlet and outlet provided with conduit coupling means, and conduits interconnect the containers in a series flow path relationship. The container that first receives the effluent becomes exhausted  first, and the container receiving the effluent last is the least exhausted As a container becomes exhausted, a fresh container is substituted and appropriate conduits are connected so that the fresh container becomes the last container.
Patent CA-2133430-C (CA)
Inventor: HANNS DAVID THOMAS
IPC: E21B17/22
Filed: 1993-04-01
Granted: 1999-06-15
Abstract: This invention concerns an accessory, to be inserted in drill string behind a drill bit, to provide separation of the liquid and air components of a flushing medium. The accessory comprises an inner housing (36) within an outer housing (34). A liquid/gas medium enters through opening (50) onto spiral raceway (48). Holes are provided at intervals along spiral (42). Liquid in the medium is centrifuged by the spiral (42) and projected into the chamber between inner and outer housings (36, 34). The expelled liquid (52) falls to the base (70) of the housing (34) where it passes through apertures (38) into the drill bore. Once the medium has traversed the spiral (42) essentially only gas remains to pass through the opening (62) to the drill bit.
Patent CA-2134414-C (CA)
Title: Method and apparatus for restraining an occupant of a vehicle upon a side impact against the vehicle
Inventor: BROWN LOUIS R
IPC: B60R21/231
Filed: 1994-10-26
Granted: 1998-04-14
Abstract: A vehicle occupant shoulder protection (51) is located on a vehicle door (16) and is inflatable from a stored condition on the door to an inflated condition between the door and the shoulder area of the occupant.  When inflated, the occupant shoulder protector (51) engages the shoulder of the occupant.  A vehicle occupant upper rib protector (52, 53) is located on the vehicle door (16) and is inflatable from a stored condition on the door to an inflated condition between the door and the upper rib area of the occupant.  When inflated, the shoulder protector (51) extends further into the vehicle passenger compartment than the upper rib protector (52, 53).  When inflated, the occupant rib protector (52, 53) engages the upper rib area of the occupant.  A vehicle occupant head restraint (210) is located on the vehicle door (16) and is inflated from a stored condition on the door to an inflated condition between the door and the head of the occupant.  When inflated, the occupant head restraint (210) engages the head of the occupant.  The occupant head restraint (210) is inflated into position to restrain the head of the occupant after the occupant shoulder protector (51) has been inflated and has engaged the shoulder of the occupant.
Patent CA-2136693-C (CA)
Inventor: MAY LINDY L
IPC: B08B9/08
Filed: 1994-11-25
Granted: 1999-03-16
Abstract: A drum conditioner which is capable of providing an external force on a drum so as to crack and loosen powdered or other finely divided material therein which has solidified and hardened is disclosed.  The drum conditioner includes two pairs of pressure rollers which provide pressure to the drum and help rotate the drum as it sits on a conveyer bed of rollers.  The pair of pressure rollers in the rear are adjustable so as to accommodate different size drums.  The front pair of pressure rollers are provided with a hydraulic cylinder to assist in providing and maintaining pressure between the pressure rollers and the object drum, regardless of the regularity of shape of the drum.
Patent CA-2147946-C (CA)
Title: Ski for snowmobile
Inventor: DESROCHERS PIERRE
IPC: B62B17/02
Filed: 1995-04-26
Granted: 1996-09-17
Abstract: The invention provides an improved ski for a snow vehicle such as a snowmobile, the ski having a snow contacting surface thereof which has a greater width proximate the front portion of the ski compared to a width rearwardly thereof. The snow contacting surface may be a portion of the keel or the ski itself although preferably both utilize this arrangement. An adaptor for converting existing skis to this configuration is also disclosed.          Better directional stability is imparted to the snow vehicle using this type of ski.