baber/WOPTO huggingface dataset:
Patent CA-2046571-C (CA)
Title: Ink compositions containing modified pigment particles
Inventor: LIN JOHN W-P
IPC: C09D11/02
Filed: 1991-07-09
Granted: 1997-09-02
Abstract: Disclosed is an ink composition comprising an aqueous liquid vehicle and pigment particles having attached to the surfaces thereof a polymerized vinyl aromatic salt. In one embodiment, the polymeric vinyl aromatic salt is chemically grafted to the surfaces of the pigment particles; in another embodiment, the polymeric vinyl aromatic salt is adsorbed onto the surfaces of the pigment particles. Preferably, the modified pigment particles have an average particle diameter of less than about 1 micron. The ink composition is suitable for applications such as ink jet printing processes, particularly thermal ink jet printing processes. Images generated with ink composition of the present invention are sharp, waterfast, lightfast, and of high optical density, exhibiting no feathering, and can be electrically conductive.
Patent CA-2047382-C (CA)
Title: Stabilized monomer compositions
Inventor: GATECHAIR LESLIE R
IPC: C07D339/08
Filed: 1991-07-18
Granted: 2002-07-02
Abstract: A process for stabilizing an ethylenically unsaturated monomer or oligomer from premature polymerization is disclosed whereby a stabilizing amount of an amine, preferably a substituted hindered amine, in combination with phenothiazine or other related heterocyclic moiety is added to said polymerizable monomer or oligomer. The ethylenically unsaturated monomer or oligomer encompass vinyl monomers or oligomers bearing at least one polymerizable moiety. The combination of substituted hindered amine plus phenothiazine inhibits premature polymerization in the liquid and/or vapor phase.
Patent CA-2047853-C (CA)
Title: Electrostatic spraying device and method
Inventor: NOAKES TIMOTHY J
IPC: B05D1/04
Filed: 1991-07-25
Granted: 2002-11-19
Abstract: An electrostatic spraying device in which liquid emerging from an outlet of the device nozzle (12) is subjected to an electrical field sufficiently high for the liquid to be drawn from the outlet as one or more ligaments which break up into charged droplets to form the spray. The device is adapted for the spraying of targets which are conventionally difficult to coat electrostatically, eg. targets of insulating material.      This is achieved by the use of circuitry (18, 20, 22, 24) which generates a bi-polar high voltage output having a frequency such that successive clouds of particles are charged with opposite polarity but do not discharge each other in flight. In this way, the charge applied to the particles is effective to assist seeking of the target without leading to build-up of charge on the target.
Patent CA-2053098-C (CA)
Title: Internal safety valve and pump system
Inventor: ZINK DONALD LAWRENCE
IPC: F04B43/10
Filed: 1991-10-09
Granted: 2001-09-04
Abstract: An internal valve and metered positive displacement pump for a pressure fluid tank. The tank defines a fluid compartment, and first and second vessels are positioned within the protective envelope of the tank. A bellows pump assembly disposed in the first vessel includes a bellows and a piston cylinder arrangement positioned within and attached to the bellows. Pressurized fluid is pumped into and out of the first vessel to actuate the piston cylinder arrangement.      With this actuating movement fluid is pumped from the compartment through a valve in the second vessel and into the second vessel for removal therefrom. The valve is normally closed against the working pressure of the fluid in the compartment by a spring bellows relief assembly in the second vessel. The force of the fluid pump by the piston cylinder arrangement opens the valve, and a check valve pre-vents fluid from flowing back from the valve into the first vessel. A passageway through the first vessel allows the pressurized fluid in the compartment to bear on the bellows and thereby bias the piston cylin-der arrangement to an up (or down) position.
Patent CA-2058559-C (CA)
Title: Co-channel interference filter for television receiver
Inventor: CITTA RICHARD W
IPC: H04N5/21
Filed: 1991-12-30
Granted: 1999-08-17
Abstract: A television signal receiver includes a comb filter having a plurality of spaced nulls for reducing undesired co-channel interference. The depth of the nulls is established in response to a control signal representing the strength of the undesired co-channel interference to provide an optimized tradeoff between interference attenuation and signal-to-noise degradation. The control signal is preferably generated in response to a received reference signal such as a pseudo random channel equalization code. The output of the comb filter is characterized by an intersymbol interference component which is canceled is an intersymbol interference filter which is also responsive to the control signal.
Patent CA-2071555-C (CA)
Title: Ultra high strength aluminum-base alloys
Inventor: PICKENS JOSEPH ROBERT
IPC: B23K35/28
Filed: 1991-01-09
Granted: 2002-06-25
Abstract: Aluminum-base alloys containing Cu, Li, Zn, Mg and Ag are disclosed which possess highly desirable properties, such as relatively low density, high modulus, high strength/ductility combinations, strong natural aging response with and without prior cold work, and high artificially aged strength with and without prior cold work. In addition, the alloys possess good weldability, corrosion resistance, cryogenic properties, and elevated temperature properties. The alloys may comprise from about 1 to about 7 weight percent Cu, from about 0.1 to about 4 weight percent Li, from about 0.01 to about 4 weight percent Zn, from about 0.05 to about 3 weight percent Mg, from about 0.01 to about 2 weight percent Ag, from about 0.01 to about 2 weight percent grain refiner selected from Zr, Cr, Mn, Ti, Hf, V, Nb, B and TiB2, and the balance Al along with incidental impurities. Preferred alloys comprise from about 3.0 - 6.5 weight percent Cu, from about 0.5 - 2.6 weight percent Li, from about 0.05 - 2 weight percent Zn, from about 0.1 - 1.5 weight percent Mg, from about 0.05 - 1 weight percent Ag, from about 0.05 - 0.5 weight percent grain refiner, and the balance Al and incidental impurities. Additional elements selected from Ge, Sn, Cd, In, Be, Sr, Sc, Y, and Ca may be used in addition to, or in place of, Zn in the present alloys.
Patent CA-2072692-C (CA)
Inventor: YAMAJI MICHIO
IPC: G05D16/06
Filed: 1992-06-29
Granted: 1998-02-17
Abstract: A fluid-controller comprises a body (1) provided  with a recessed valve chamber 12 communicating with a fluid inlet port (10) and  a  fluid  outlet  port  (11)  and having a valve seat (13) formed at the bottom thereof, a diaphragm (2) disposed  above  the  valve  seat  for keeping the valve chamber (12) airtight, the diaphragm being adapted to directly contact the valve seat (13) by  moving  the  central portion thereof in a vertical direction or indirectly contacting the valve  seat  13 through  the  disc 6, and a stem 8 elevatably disposed above the  diaphragm  (2)  for  lowering  the  central portion of the diaphragm 2, wherein a stop mechanism 3 is  interposed  between  the   body   (1)   near   the circumferential  edge  of  said  diaphragm (2) and the lower end of the stem (8) for  limiting  the  downward movement  of the stem (8) when the fluid controller is in a fully closed position.
Patent CA-2078842-C (CA)
Title: Improved golf ball covers containing high acid ionomers
Inventor: SULLIVAN MICHAEL J
IPC: A63B37/00
Filed: 1992-09-22
Granted: 2000-03-07
Abstract: The present invention is directed to a golf ball comprising a core and a cover, wherein the cover comprises a blend of two or more high acid ionomer resins. Each high acid ionomer resin utilized in the blend of the cover composition comprises generally of greater than 16% by weight acid, preferably from about 17 to about 25% by weight acid and more preferably from about 18.5% to about 21.5% by weight acid. The acid groups of the high acid ionomers utilized in the cover compositions of the invention are partially (i.e. generally 10-75 percent, preferably 30-70 percent) neutralized by metal ions such as by sodium, zinc and magnesium ions. When the blend of two or more high acid ionomer resins is utilized to manufacture a golf ball, the golf ball produced thereby, exhibits properties of improved distance without sacrificing characteristics such as playability and/or durability when compared to low acid ionomer and/or low acid/high acid ionomer blends.
Patent CA-2079472-C (CA)
Title: Separateur interetage
Inventor: VERO GREGORY MARK
IPC: B65G53/60
Filed: 1991-04-12
Granted: 1999-02-02
Abstract: L'invention concerne un séparateur interétage permettant de transférer les particules de polymères provenant d'une transporteuse pneumatique d'un premier étage, avec un air très chaud et humide, vers une transporteuse pneumatique d'un deuxième étage, avec un air froid et sec. Le séparateur interétage se caractérise par un orifice d'entrée tangentiel pour les particules, et une chambre de séparation enfermée, dans laquelle les particules sont séparées du courant d'air du premier étage. Un élément de transition associé au séparateur dirige les particules dans un courant d'air du deuxième étage et, de là, vers une transporteuse pneumatique du deuxième étage. Le séparateur interétage transfère les particules de polymères du courant d'air du premier étage vers le courant d'air du deuxième étage sans encrasser l'équipement associé.
Patent CA-2084742-C (CA)
Title: High speed cross-correlation frequency domain fluorometry-phosphorimetry
Inventor: BARBIERI BENIAMINO
IPC: G01N21/64
Filed: 1992-12-07
Granted: 2005-04-05
Abstract: Apparatus for cross-correlation frequency domain fluorometry and/or phosphorimetry in which means are provided for sequentially performing runs of the cross correlation frequency domain fluorometry and/or phosphorimetry at sequentially differing first and second frequencies, The intensities of signal responses of the runs are detected at the respective cross-correlation frequency in each run. The detection of the signal response is prolonged in each run until an integrated signal with a specified standard deviation has been acquired at each of the differing runs. Preferably the sequential runs are automatically executed by a program.      Also, the waveforms sensed by deriving the resultant signal response in each run are folded. That is: corresponding segments of the waveforms are superimposed to obtain an average waveform value for each run having an increased signal to noise ratio over the individual waveform segments. Also, preferably, a software-created variable frequency digital filter is used to filter signal responses at the cross-correlation frequency.
Patent CA-2089043-C (CA)
Title: Call processing using logical channel assignments
Inventor: WANG THERESA CHEN YEN
IPC: H04L12/56
Filed: 1993-02-08
Granted: 2001-12-18
Abstract: A communications network includes satellites, which serve as switching nodes and move in orbits about the earth. The network additionally includes stationary switching offices. Mobile communication units communicate with the network through the satellites using TDMA data packets and network control messages.      The switching offices couple to PSTNs. Each mobile unit is managed by a nearby switching office that assigns a logical channel identification (LCID) value to the unit.      The unit and network use the LCID value to identify the unit in network communications so that network resources are conserved. The network insures that LCID values assigned to opposing parties in a call are included in all TDMA data packets transported to the opposing parties. Satellites and switching offices use these LCID values as logical channel assignments which do not change throughout the duration of the call, in spite of movement by satellites.
Patent CA-2103054-C (CA)
Title: Flashover simulation for firefighter training
Inventor: LAYTON MARK RUSSELL
IPC: G09B9/00
Filed: 1992-05-21
Granted: 1997-02-25
Abstract: A system and method is disclosed for providing a simulation  of  a  flashover  condition  that  can  occur during the course of suppression of a live fire.  The flashover  simulation  is  implemented  by  selectively supplying  and  igniting  fuel  to  an  auxiliary  or flashover fuel burner assembly positioned adjacent the ceiling  of  the burn  room of  a  firefighter  trainer. Preferably,  the flashover simulation is implementable only upon attainment of a threshold value of one or more pre-selected trainer operational parameters that are  monitored  throughout  the  course  of  a  training scenario.   Preferred  trainer  operational  parameters for  such monitoring  include  flame height  at  a main burner  assembly  and  air  temperature  adjacent  to  or near a ceiling portion of the burn room.
Patent CA-2106215-C (CA)
Inventor: UPSON JAMES GRIGG
IPC: A61K33/08
Filed: 1992-03-13
Granted: 1997-05-27
Abstract: Ingestible pharmaceutical compositions comprising pharmaceutical actives useful for treating upper gastrointestinal tract distress(e g., antacid agent,) and 3-1-menthoxy propane 1,2-diol in amounts effective of providing a cooling sensation to the throat.
Patent CA-2110410-C (CA)
Title: Therapeutic compositions for osteoinduction
Inventor: STONE ROGER LEE
IPC: A61K38/22
Filed: 1992-05-26
Granted: 1997-04-15
Abstract: A method for generating new bone growth in a mammal comprising administering to the mammal a safe and effective amount of a Vitamin D compound in combination with a safe and effective amount of osteoinductive extract or at least one BMP
Patent CA-2118952-C (CA)
Inventor: JOHNSON RICHARD F
IPC: B60N2/829
Filed: 1994-03-14
Granted: 2004-06-08
Abstract: An adjustable belt guide and headrest apparatus for a vehicle seat. The apparatus includes a pair of first track members and a pair of second track members slidable longitudinally relative to the first track members. An upper end of the second track members includes a cantilevered headrest frame member and a shoulder belt guide, both of which move towards and away from a seat back portion of the vehicle seat when the second frame rails are moved slidably. A threaded drive rod is fixedly secured to the second frame rails. The threaded drive rod is driven by an operator controllable, reversible DC motor. Operation of the DC motor causes the threaded drive rod to be driven so as to cause the second track members to move up and down slidably relative to the seat back, thereby allowing the headrest and seat belt guide to be concurrently adjusted to suit the height of the driver with a single adjustment. In the preferred embodiment, a reinforcement member is affixed to a lateral side of the seat back portion and the first track members are mounted to the reinforcement member. This reinforced structure enables the present invention to exceed federal seat belt load standards.
Patent CA-2126160-C (CA)
Title: Multiple width fiber strip and method and apparatus for its production
Inventor: RAUFER KLAUS P
IPC: D02G1/12
Filed: 1994-06-17
Granted: 1997-09-23
Abstract: The invention relates to a multiple width fiber strip consisting of curled,  interlaced filaments and having several  zones extending in longitudinal direction of the fiber strip as well as at least one tear line  (4)  extending  in  longitudinal  direction of the fiber strip, wherein the tear strength (daN) of the fiber strip, referred to the total titer (dtex) is at least about 1.7 x 10-4 daN/dtex (determined in analogy to DIN 53 834 Tl, February 1976, under a tension of 2.5 N). Further it relates to a method for producing one or several such fiber strips, with several separate bands (1, 2) being formed of substantially parallelly  extending  filaments  and  the  formed bands  being curled jointly to produce one or several curled fiber strips. The apparatus for carrying out this method is characterized by a transport roll pair (8, 9) for jointly transporting the supplied bands (1, 2) and a curling unit (10.1, 10.2, 11, 12) which is arranged after the transport roll pair (8, 9), for curling the bands (1, 2) leaving the transport roll pair. The invention makes possible, in the case of the production of a multiple width fiber strip with the tear line referred to, processing on  a double  skein  filter  rod machine with  a single  (individual) treatment section.
Patent CA-2130389-C (CA)
Title: Vessel and closure assembly
Inventor: KAYAL JOHN J
IPC: C12M1/04
Filed: 1994-08-18
Granted: 1997-10-14
Abstract: A vessel and closure assembly for culturing cells wherein a gas permeable membrane is provided in the closure to allow rapid and uniform equilibration of gases between the atmosphere of the vessel and the atmosphere of the incubator.  A plug is provided for occluding passage of gases through the gas permeable membrane when the vessel is removed from the controlled atmosphere of the incubator.
Patent CA-2131175-C (CA)
Title: Unflavored psyllium drink mix compositions
Inventor: TSE HING CHEUNG
IPC: A23L1/308
Filed: 1993-02-23
Granted: 1997-08-19
Abstract: Psyllium-containing drink mix compositions comprising acid and base at a level whereby the composition, when combined with water, has a pH of greater than about 4.8.
Patent CA-2131600-C (CA)
Inventor: SCHOEFFLER MAX S
IPC: G10L15/28
Filed: 1994-09-07
Granted: 1998-04-28
Abstract: The user interface in an automatic speech recognition (ASR) system is is dynamically controlled, based upon the level of confidence in the results of the ASR process. In one embodiment, the system is arranged to distinguish error prone ASR interpretations from those likely to be correct, using a degree of confidence in the output of the ASR system determined as a function of the difference between the confidence in the "first choice" selected by the ASR system and the confidence in the "second choice" selected by the ASR system. In this embodiment, the user interface is arranged so that the explicit verification steps taken by the system as a result of uncertain information is different from the action taken when the confidence is high. In addition, different treatment can be provided based upon the "consequences" of misinterpretation as well as the historical performance of the system with respect to the specific user whose speech is being processed. In another embodiment, after an ASR system interprets an utterance, the confidence in the interpretation is assessed, and three different interactions with the user may then occur.
Patent CA-2134123-C (CA)
Inventor: SCHNEIDER JAMES
IPC: A61M16/04
Filed: 1993-04-21
Granted: 2006-04-11
Abstract: The invention relates to a respiratory support system (10) which includes a suction catheter device (41), a suction control valve (79), and a ventilator manifold (11). The catheter device (41) includes a proximal end connector (72) having a valve (75) therein which prevents air flow through the catheter (54) until the suction control valve (79) is attached thereto, and a distal end connector (40). The suction control valve (79) includes an actuator (113) which is linearly movable between a first position to a second position. The valve also includes a rotatable valve core (135) which can be rotated by the actuator (113) to a third position to disable its linear movement and to open an ancillary access port. When the actuator (113) is in the first position, atmospheric air can pass through the valve (79) and into the suction pressure source in such a manner that a "hissing" auditory signal is generated, indicative of the presence of suction pressure within the valve (79). The ventilator (11) includes an access port (15) for attachment and detachment of the suction catheter device (41) thereto. The access port (15) has a normally closed valve (16) therein. The placement of the speciallly designed connector (40) of the suctioning device (41) in the access port (15) forces the normally closed valve (16) to an open position.
Patent CA-2134871-C (CA)
Title: Integrated carbonaceous fuel drying and gasification process and apparatus
Inventor: JOHNSON TERENCE R
IPC: C10J3/54
Filed: 1993-05-04
Granted: 2001-12-18
Abstract: This invention provides a process and apparatus for gasifying a particulate solid carbonaceous fuel with a high moisture content, the process comprising: introducing the fuel into one or more pressurized drying vessels without adding water to the fu-el: reducing the moisture content of the fuel in the drying vessel(s) to a level suitable for gasification by passing hot product gas through the or each drying vessel such that the fuel particles are entrained in the gas flow, thereby cooling and humidifying the gas: separating the cooled and humidified gas from the fuel; transferring the fuel with reduced moisture content from the or each drying vessel to a gasification vessel, gasifying the fuel in the gasification vessel to produce hot product gas; and introducing at least a portion of the hot product gas into the or each drying vessel. The invention also relates to an integrated process for produ-cing power, especially electric power, from particulate solid carbanaceous fuel.
Patent CA-2135327-C (CA)
Inventor: GLANCE BERNARD
IPC: H04B10/572
Filed: 1994-11-08
Granted: 1999-09-14
Abstract: The present invention relates to an optical communication system well-suited for local-area-network and optical switching applications requiring high bit rate transmission. The system provides collision-free reception, achieved by means of a novel fast-tunable optical filter that controls the packet flow. Reception acknowledgements are passively generated without the use of optical sources and are transported on the same packet network.
Patent CA-2138684-C (CA)
Inventor: KOHL ROBERT E
IPC: B65G47/26
Filed: 1994-12-21
Granted: 1997-11-25
Abstract: A bi-directional accumulation roller conveyor includes  a  plurality  of  upper  load  carrying  rollers longitudinally coextensive with and superimposed over a plurality of lower load carrying rollers,  a drive for driving the upper and lower load carrying rollers for counter rotation with respect to each other, a first clutch for drivingly engaging the upper load carrying rollers, a second  clutch  for  drivingly  engaging  the  lower  load carrying rollers, a actuator for disengaging the clutches respectively in response to the presence of a pallet on each terminal end of the upper or lower plurality of load carrying rollers and a lifting device for transferring pallets between the upper and lower load carrying rollers thereby providing a continuous loop of conveyable pallets and managing pallet flow.
Patent CA-2146531-C (CA)
Title: A method for adjusting the rinse cycle of a warewasher
Inventor: STOVER KEVIN LEE
IPC: A47L15/00
Filed: 1995-04-06
Granted: 2000-07-18
Abstract: A method for rinsing ware in a warewashing machine comprising the steps of: adding fresh rinse water to a wash chamber of the warewashing machine to rinse said ware in a rinse cycle; detecting the water level in the wash chamber; upon detecting a level below a predetermined volume, continuing to add rinse water to said chamber; and upon detecting a level of water equal to said predetermined volume, discontinuing the step of adding rinse water to said chamber.