baber/WOPTO huggingface dataset:
Patent CA-2088481-A1 (CA)
Title: Concentrates for plastics
Inventor: POPLI RAKESH K
IPC: C08L101/00
Filed: 1991-08-02
Abstract: A novel polymeric concentrate is disclosed. The polymeric concentrate comprises an additive ingredient and a polymeric carrier having a number-average molecular weight of between 500 and 20,000.  The polymeric carrier is a polymer which comprises 30 parts-by-weight to 100 parts-by-weight of a first monomeric ingredient represented by structure (I) wherein R1 is either H or CH3; and wherein R2 is an organic residue having a formula weight of less than about 300. The polymeric carrier further comprises 0 parts-by-weight to 30 parts-by-weight of a second monomeric ingredient selected from the group consisting of an acid monomer, polymerizable half esters of dicarboxylic acids and/or salts thereof, and combinations thereof; and 0 parts-by-weight to 70 parts-by-weight of a third monomeric ingredient that is capable of being free radical addition copolymerized with the first monomeric ingredient.
Patent CA-2093539-A1 (CA)
Inventor: ROUSSEL RENALD
IPC: F16K3/12
Filed: 1993-04-06
Abstract: KNIFE VALVE  Abstract A knife valve comprises a body defining a valve seat and a knife blade longitudinally movable by a cylindrical stem in the body for opening and closing a lateral flow passage defined therethrough. The body includes a bonnet with the stem extending therethrough and with circular packing rings being disposed therein around the stem.  The valve seat is located  on  a  first  side  of  the  blade  and  in operative proximity thereto.   The stem includes a lower head portion which defines an angular surface, whereas a top portion of the blade defines a slot forming an angular surface parallel to the angular surface  of  the  stem  head.    The  stem  head  is engageable  in the  slot with the  angular  surfaces thereof being in sliding contact.   Therefore, when the blade is in its closed position, a longitudinal force  exerted  by  the  stem  on  the  blade  is transferred into a lateral force oriented towards the seat, thereby forcing the blade against the seat in  a  tight  bidirectional  seal  under  a  positive torque.   Angular lugs provided on a lower second side of the blade cooperate with tapered lower edges of the blade to also urge the blade against the seat in its closed position.   A bypass  arrangement is provided  in  the  bonnet  around  the  stem  for communication with the valve passage to prevent the pulp  fibers  from  accumulating  in  the  bonnet  and jamming the stem.   A resilient seat is mounted to the valve body on the first side of the blade.
Patent CA-2094825-A1 (CA)
Title: Over-the-wire catheter
Inventor: DEN HEIJER PETER
IPC: A61M25/01
Filed: 1991-10-30
Abstract: A catheter system (10) includes a guide wire (12), a working catheter (22) and a torque device (78) for removably coupling the working catheter (22) to the guide wire (12) while enabling rotation of the guide wire (12) relative to the working catheter (22).  Advancement of the guide wire (12) in a vascular system is enabled by rotating the guide wire (12) while the working catheter (22) is coupled thereto. A procedure for use of the catheter system (10) includes the simultaneous insertion of the guide wire (12) and working catheter (22) into a vascular system and independent rotation of the guide wire for steering the guide wire (12), with working catheter (22) coupled thereto, through the vascular system.
Patent CA-2095190-A1 (CA)
Title: Exposure Drum Mask
Inventor: LEIN JUERGEN G
IPC: G03G21/00
Filed: 1993-04-29
Abstract: A mask is used for mounting a sensitized sheet, such as a printing plate, onto the surface of an exposure drum. The mask, acting as an intermediary between the exposure drum and the printing plate, is a flexible sheet, with a top and bottom surface, that is mounted about the exposure drum. A groove formed within the top surface of the flexible sheet is used for securing the printing plate by means of a vacuum. A passageway formed within the flexible sheet connects the groove to the bottom surface and receives a vacuum from the exposure drum. Plates of different sizes are mounted to the exposure drum by interchangeable masks of corresponding sizes. <IMAGE>
Patent CA-2095218-A1 (CA)
Title: Process for the preparation of high chloride tabular grain emulsions (iv)
Inventor: MASKASKY JOE E
IPC: G03C1/005
Filed: 1992-09-15
Abstract: A process of preparing a radiation sensitive high chloride high aspect ratio tabular grain emulsion is disclosed wherein silver ion is introduced into a gelatino-peptizer dispersing medium containing a stoichiometric excess of chloride ions of less than 0.5 molar, a pH of at least 4.6, and a triaminopyrimidine grain growth modifier containing mutually independent 4, 5 and 6 ring position amino substituents, the 4 and 6 ring position substituents being hydroamino substituents.
Patent CA-2096929-A1 (CA)
Title: Constant brightness liquid crystal display backlight control system
Inventor: MITCHELL NATHAN A
IPC: H05B41/392
Filed: 1993-05-25
Abstract: ABSTRACT             CONSTANT BRIGHTNESS LIQUID CRYSTAL  DISPLAY BACKLIGHT CONTROL SYSTEM   A LCD backlight system which regulates the light generated by the lamp by controlling the intensity of the light using a photoresistor cell.  The current provided to the lamp is controlled by a pulse width modulation (PWM) signal.  The PWM signal responds to brightness adjustments by the user and to a photoresistor exposed to the light from the lamp.  An operational amplifier circuit controls the PWM signal so that if the lamp is too bright, the current to the lamp is reduced, and if the lamp is too dim, the current to the lamp is increased.  When the lamp brightness reaches the appropriate intensity, the output of the operational amplifier is unchanging, causing the intensity of the lamp to remain stable.
Patent CA-2097599-A1 (CA)
Inventor: ASPLUND GUNNAR
IPC: H02M7/12
Filed: 1992-10-13
Abstract: A method and a device in an electric power network (1), comprising an active filter (4) controllable via a control input (41), for reducing disturbances generated by a disturbance source (6) located in and/or connected to the power network. A control member (8) is adapted, in dependence on the control deviation (DU) from a desired value (Y2iR) of at least one state variable (Y2i) sensed in the power network (1), to generate a control signal (C1) which is supplied to the control input (41). The control member (8) is adapted to transform the control deviation (DU) in a filter device (93) with a transfer function (FI) which simulates the inverse of the transfer function (F1') from the control signal (C1) to the control deviation (DU) and/or to filter the output signal of the controller in a filter device (943, 953, 956) without any phase shift. (FIGS. 1 and 10)
Patent CA-2102970-A1 (CA)
Title: Coated substrates and laminate structures comprising organic solvent-based dispersions of organocation- modified vermiculite
Inventor: OU CHIA C
IPC: C08J7/05
Filed: 1993-11-12
Abstract: ABSTRACT OF THE DISCLOSURE      Coated substrates, and laminate structures made with intermediate layers provided by organic solvent-based dispersions of organocation-modified delaminated vermiculite are disclosed. The laminates display better peel strength compared to laminates made from water-based dispersions, and can be used in a number of applications.
Patent CA-2103915-A1 (CA)
Title: Facsimile machine with diverse communication facilities
Inventor: CHARBONNIER PHILIPPE
IPC: H04N1/32
Filed: 1992-02-12
Abstract: PCT No. PCT/FR92/00132 Sec. 371 Date Aug. 5, 1993 Sec. 102(e) Date Aug. 5, 1993 PCT Filed Feb. 12, 1992 PCT Pub. No. WO92/14335 PCT Pub. Date Aug. 20, 1992The facsimile machine comprises a processor (10), means (20) for connection to a telephone line (8), means (20) for connection to a main telephone (7), a ring detector (21), a module (17) for recognition of the nature of incoming calls, and a printer (14). It comprises means (23'; 26) for direct connection to at least one terminal (2; 3) and means (20; 25) for connection of the terminal (2; 3) to the telephone line (8), and it is adapted, in case of connection between the terminal and the telephone line, to note events on the line and therefore recognize their nature, and thus to switch the line (8) to the facsimile machine or the terminal (2; 3) as a function of the nature of the events. The terminal may be a videotex terminal (2) or an answering/recording machine (3). These two terminals may both be connected to the facsimile machine.
Patent CA-2107506-A1 (CA)
Title: Method and apparatus to refurbish carpet tiles
Inventor: HIGGINS KENNETH B
IPC: B08B11/00
Filed: 1993-10-01
Abstract: ABSTRACT OF THE DISCLOSURE        Method to refurbish cut or loop pile carpet products including carpet tiles by passing the product under a high pressure water or liquid dispensing head projecting a stream of water against the subject product at a pressure in the range of 200 - 2000 p.s.i.g.
Patent CA-2109531-A1 (CA)
Title: Mouthpiece for drinking liquid containing cans
Inventor: DE CASTRO COUTO GILBERTO
IPC: B65D25/50
Filed: 1993-11-19
Abstract: ABSTRACT            A  mouthpiece  for a drinking liquid can comprising a separate plastic part that fits over the liquid dispensing end  of  the can  includes a transverse panel that on fitment lies over the liquid dispensing end of the can and has a liquid opening  de-signed to be in register with the liquid dispensing opening in the can end.
Patent CA-2112905-A1 (CA)
Title: Ultrasmall non-aggregated porous particles entrapping gas-bubbles
Inventor: VIOLANTE MICHAEL R
IPC: A61K49/22
Filed: 1992-07-02
Abstract: Ultra-small, substantially non-aggregated, non-crystalline particles of predetermined uniform size wich, when suspended in a liquid, contain entrapped gaseous bubbles are disclosed. These gaseous bubble particles are prepared by simultaneous co-precipitation of two compounds wherein one compound is substantially more soluble than the other in a given vehicle. When this vehicle is used for washing the co-precipitated particles, part of the soluble material is dissolved leaving a porous matrix. The porous particles then are dried and stored. The porous particles, which can be resuspended immediately prior to use, contain entrapped gas in the evacuated crevices or pores which is not displaced for a period of time because of surface tension of the suspending vehicle. The ultrasmall porous particles can be used as ultrasound contrast agents, such as ultrasound contrast agents in the blood vessels and soft tissue, including the liver, spleen, heart myocardium, kidney and brain of an animal, such as a human. The ultrasmall porous particles also can be used dry for applications where reduced weight is desirable.
Patent CA-2114100-A1 (CA)
Inventor: TEAL BENNY
IPC: F26B17/04
Filed: 1994-01-24
Abstract: A method for drying wood strands and the like is shown and described. In a preferred embodiment, the strands are fed onto a conveyor which then moves the strands as a bed through a dryer housing. The housing may be partitioned into various zones and levels, depending on the desired configuration. A volume of drying air is heated and then passed through the bed of strands to reduce the moisture content of the strands. In a preferred embodiment, the strands are agitated to promote the even exposure of the strands to the drying heat. The strands are then conveyed through a conditioning zone before being discharged from the dryer housing.
Patent CA-2117481-A1 (CA)
Inventor: SIVILOTTI OLIVO G
IPC: C22F1/04
Filed: 1993-02-12
Abstract: Cooling of metal strip (16) in a single or multistand cold rolling line by applying coolant liquid only to the lower surface of the strip (16), and removing the liquid therefrom, after each, or between successive roll stands (11a, 11b, 11c). The liquid is delivered, at each cooling locality, at low pressure through a plurality of slots (32) each extending transversely beneath and across the full width of the strip (16), the slots (32) being spaced apart along the path of the strip (16) and generally being oriented to discharge the coolant liquid toward the strip lower surface at an angle of greater than 90° to the direction of strip advance. Coolant removal is effected by directing one or more liquid knives (52a, 54a, 60a) against the strip lower surface between the plurality of slots (32) and the next downstream roll stand in the line, at a location at which the strip (16) is trained around a hold-down roll (56).
Patent CA-2119156-A1 (CA)
Title: Surgical Isolation Apparatus
Inventor: POTTS WILLIAM E
IPC: A61B46/23
Filed: 1992-09-11
Abstract: A surgical isolation apparatus suitable for use in a variety of surgical procedures completely isolates operating personnel from the patient's blood, body fluids and contaminated irrigation fluids, while providing manual access to the operating area and permitting use of optical instruments such as endoscopes. The preferred embodiment of the invention is especially designed for transurethral prostatectomies, and can be fabricated simply and inexpensively from two sheets of transparent plastic.
Patent CA-2119905-A1 (CA)
Title: Detection of rod pump fillage from motor power
Inventor: LONDON ROBERT K
IPC: E21B47/00
Filed: 1994-03-22
Abstract: DETECTION OF ROD PUMP FILLAGE FROM MOTOR POWER           Abstract of the Disclosure The extent to which a reciprocating pump for an oil well fills between successive pump strokes is determined indirectly from variations in the power consumption of an electric motor driving the pump.  The power consumption is sampled numerically and a processor determines the phase of data in the samples from phase references defined by a peak and/or zero crossing in the cyclic operation of the pump and motor.  When the pump fills incompletely between strokes, for  example  when the pump  is  operated  at  too high a frequency, the well rod moves against decreased resistance during the downstroke.  The processor determines the point in the pump cycle at which the well rod encounters fluid from the increased power consumption, obtaining an indirect indication of fillage.  The instantaneous power consumption preferably is measured by a module associated with an electrical  contactor  or  motor  starter  included  in  an improved pump controller or "pump panel" that includes a programmable controller effecting the processor functions and also functioning as an off-pump control for regulating activation of the pump.
Patent CA-2120895-A1 (CA)
Inventor: EDWARDS DAVID N
IPC: B29C48/18
Filed: 1994-04-08
Abstract: Abstract of the Disclosure A packaged article, especially a respiring foodstuff such as cheese which generates or releases gas during storage, and a permeable multilayer biaxially oriented film suitable for allowing escape of such gas while minimizing transfer of oxygen across the film which has a thin layer of a blend of EVOH and nylon.  In a preferred embodiment the low cost film having a high permeability to CO2 and low O2 permeability is used to package cheese.
Patent CA-2126099-A1 (CA)
Title: Embedded signalling
Inventor: PREUSS ROBERT DAVID
IPC: H04B1/707
Filed: 1992-12-10
Abstract: In this embedded signalling system a sequence of code symbols representing digital information is generated (100). A code signal representing this sequence is generated (200), which is dynamically filtered to form a modified code signal (300), which is combined (400) with a higher level audio signal to form a composite audio signal for transmission.
Patent CA-2127148-A1 (CA)
Title: Bite indicator floating rod for a carrier sinker
Inventor: CRESPI CARLO E
IPC: A01K93/00
Filed: 1994-06-30
Abstract: The object  of  this Utility Model  is  a bite  indicator floating rod with axial sliding inside a carrier sinker necessary for  casting  and  ensuring  its  stability.  By separating the indicator rod from the sinker holding it, the response of the rod to a taking fish becomes more sensitive because it is relieved from a weight but if the sinker,  which is held by a special stopper on the rod itself,  is let to perform exactly though infinitesimally its own functions as a sunken body, the stability of the unit will be absolutely improved. Therefore, the contrivance being the object of this Utility Model is the unit made up of a float and a sinker which are independent one of the other as to the antithetic functions they perform, but interdependent as to the aims they have to achieve. The floating rod slides free and light inside the sinker but keeps it suspended in the water, the sinker, in turn, lets the rod slide inside itself freely, but when it is kept suspended,  it stabilizes the rod protecting it from all   the   attacks   coming   from   outside   the   unit. Different types of carrier sinkers complete the range.
Patent CA-2127316-A1 (CA)
Title: Coupling device for a mattress
Inventor: ASSINK BERNARDUS A T F
IPC: A47C27/00
Filed: 1994-07-04
Abstract: Abstract A coupling device for coupling a mattress (2) to a mattress base (1) comprises a lower coupling element (4), which can be attached to the mattress base (1), and an upper coupling element (6), which can be attached to the mattress (2), which lower coupling element (4) and upper coupling element (6) can be mechanically connected to one another. To facilitate the making of said connection, said upper coupling element (6) and lower coupling element (4) can be coupled in various positions which are offset with respect to one another. Furthermore, upper coupling element (6) and lower coupling element (4) can also be coupled electrically.
Patent CA-2128177-A1 (CA)
Inventor: FERGUSON BOBBY L
IPC: E21B33/04
Filed: 1994-07-15
Abstract: A wellhead connector has a tubular head that lands over a well conduit, such as casing.   The head has an annular recess.  An annular housing is located in the recess.   The housing has a slips bowl which carries gripping segments for gripping the casing.  The gripping segments have exterior wedge surfaces which are engaged by radially extending lock pins.  The lock pins extend through threaded holes in the head and through holes in the housing.  The housing has an exterior cam surface. The lock pins may be removed from engagement with the gripping segments,  the head picked up, and the lock pins reinserted into the holes for engaging the housing cam surface.  Rotating the lock pins releases the segments from engagement with the casing.
Patent CA-2128379-A1 (CA)
Title: 1-Halo-cis-3-Tetradecenes and Processes for the Preparation of cis-Olefin Compounds by Using Same
Inventor: FUKUMOTO TAKEHIKO
IPC: C07F3/02
Filed: 1994-07-19
Abstract: Disclosed are compounds suitable for use as raw materials which enable cis-olefin compounds useful as physiologically active substances such as the sex pheromones of various insects, or as intermediates for the synthesis thereof to be prepared on an industrial scale at a reasonable cost, and processes for the preparation of cis-olefin compounds by using the same.  For this purpose, novel compounds (i.e., 1-halo-cis-3-tetradecenes) of the general formula (I) CH3(CH2)9CH=CH(CH2)2x                      (I) wherein X is a halogen atom, are used as raw materials for the preparation of cis-olefin compounds.
Patent CA-2129903-A1 (CA)
Title: Leaky bucket for supervision in industrial processes
Inventor: LECORNEY DAVID C
IPC: H04M3/08
Filed: 1993-03-05
Abstract: A method for reacting to disturbances that occur in an industrial process includes the steps of extracting information from the industrial process as to occurrence of normal events and occurrence of disturbances, transmitting the extracted information to a disturbance filter which includes a leaky bucket having a defined disturbance step and floor and ceiling height for the disturbances, and triggering an alarm when occurrence of disturbances in the industrial process falls without the defined disturbance step and floor and ceiling height. As mentioned above, the present invention also provides a rigorous method of setting parameters within a leaky bucket algorithm.
Patent CA-2130161-A1 (CA)
Title: Sandwich insulation for increased corona resistance
Inventor: DRAPER ROBERT E
IPC: B32B27/10
Filed: 1994-08-15
Abstract: This invention relates to a sandwich type insulation for electrical machinery comprising a laminate of a polymeric material such as a polyimide bonded to mica paper. The resultant insulation may be used as a tape or wrapper.
Patent CA-2132758-A1 (CA)
Title: Process for the isolation of l-leucine and l-isoleucine
Inventor: YONSEL SEMS
IPC: C07C227/40
Filed: 1994-09-23
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to a process for the isolation of L-leucine and L-isoleucine from aqueous solutions containing these amino acids and their separation from each other, in which process zeolites are used.  The aqueous solutions are optionally repeatedly brought into contact at a pH of < 7 with a zeolite having 8 modulus of 2 to 1000, the zeolite is separated on completion of adsorption and the adsorbed amino acids are desorbed with an aqueous solution adjusted to a pH of > 7.
Patent CA-2133124-A1 (CA)
Inventor: CHACE DAVID M
IPC: E21B47/10
Filed: 1994-09-28
Abstract: This disclosure provides a method for measuring the velocities of water volumes flowing co-directionally in separate conduits nested such as in injection or production well-bores. The method allows an oxygen activation measurement of thevelocity of the water flow in the tubing-casing annulus in the presence of waterflowing in the tubing string in the same direction. The method allows continuouslogging at variable or constant cable velocities or stationary logging. Based on the method of velocity gauging, the method isolates the signal from the annular flow and can produce a continuous log of linear and volumetric annular flow rates with depth.
Patent CA-2134121-A1 (CA)
Title: Frozen confection
Inventor: HOLT CHRISTOPHER B
IPC: A23G9/44
Filed: 1993-04-22
Abstract: Keepable particulate frozen dessert or ice confection product having a weight average particle size of from 0.001 to 20 ml, the majority of the particles having a thermal transition temperature of at least -15 ·C.
Patent CA-2135115-A1 (CA)
Inventor: HURFORD SIMON R
IPC: C08L83/06
Filed: 1994-11-04
Abstract: A release modifier for silicone release compositions comprising a MQ resin consisting essentially of units of the formulae SiO2 (Q)    and    R3SiO1/2 (M) wherein R denotes a monovalent hydrocarbon group having up to 3 carbon atoms, a hydrogen atom, an alkenyl group of the formula -R1CH=CH2 or an oxyalkenyl group of the formula -OR'CH=CH2, wherein R' denotes an alkylene group of from 4 to 12 carbon atoms, provided there is at least one group -R'CH=CH2 or one group -OR'CH=CH2 present per MQ molecule and that no more than 50% of all M units have such groups.  Also claimed is a solventless release composition based on siloxanes having SiH groups and a catalyst in addition to the release modifier.
Patent CA-2135887-A1 (CA)
Title: Determination of estradiol by competitive immunoassay
Inventor: BAKER HAROLD N
IPC: G01N33/58
Filed: 1993-06-09
Abstract: The present invention relates to the measurement of estradiol using competitive immunoassay methods. The inventors unexpectedly discovered that estrone and its derivatives conjugated to a label is a particularly effective tracer when used in conjunction with estradiol specific antibodies to determine estradiol levels in fluid samples. The present invention also utilizes 5.alpha.-dihydrotestosterone to enhance the assay performance.