baber/WOPTO huggingface dataset:
Patent CA-2101629-A1 (CA)
Inventor: SCHMITT EDWARD E
IPC: C09J7/02
Filed: 1992-02-12
Abstract: Adhesive compositions are provided which are tacky within a predetermined temperature range and will strongly bond an article to a substrate within a given temperature range, but which are substantially nontacky at temperatures outside either range. The adhesive compositions contain a polymeric pressure-sensitive adhesive component and a crystalline polymer which defines the temperature range within which the adhesive composition as a whole is tacky.  The invention also provides adhesive assemblies such as adhesive tapes, sheets and the like, as well as methods of use.
Patent CA-2102231-A1 (CA)
Title: Method and apparatus for displaying multi-frequency bio-impedance
Inventor: WITHERS PAUL O
IPC: A61B5/05
Filed: 1992-04-27
Abstract: A method and apparatus for displaying complex impedance and related physical characteristics of an object (30) at a plu-rality of sinusoidal frequencies over a wide frequency range. Excitation signal waveforms (10, 14, 18) are stored in digital form. Digital sampling and processing circuitry (84, 86) provide high form. Digital sampling and processing circuitry (84, 86) provide high noise immunity and accurate measurement at all impedance phase angles.  The technique is particularly well-suited to the measurement of complex impedances in living biological tissue because the digital implementation results in highly accurate mea-surement values over a plurality of selectable frequencies within a wide sinusoidal frequency region. A novel adaptation of digital cross-correlation (84) and convolution (86) techniques is used to simultaneously display (72) real and imaginary electrical imped-ance of living biological tissue at several selectable sinusoidal frequencies.
Patent CA-2104390-A1 (CA)
Title: Polymeric additives
Inventor: HART RICHARD J
IPC: C08F8/30
Filed: 1992-02-25
Abstract: An additive comprising an oil-soluble polymer of number average molecular weight in the range of 200 to 50,000, the polymer having or including a polymer backbone carrying a plurality of the same or different functional groups that give rise to cetane improving properties in a fuel oil when the polymer is an additive therefor.
Patent CA-2105882-A1 (CA)
Title: Magnetic separators
Inventor: STADTMULLER ADAM A
IPC: B01D35/06
Filed: 1992-03-25
Abstract: A magnetic separator for separating magnetizable particles from a fluid is described. The separator is of the type compris-ing a separating chamber having an inlet and an outlet with means for establishing an axial magnetic field within the chamber. Two or more matrix elements are stacked axially within the chamber. Fluid control means is provided for dividing a stream of fluid containing magnetizable particles supplied to the inlet of the chamber into two or more portions and directing each portion axially through a respective matrix element and thence to the outlet. For a given slurry feed amount, a greater matrix element area is provided. The matrix elements may be in the form of spaced annuli, the fluid portions being fed radially between adjacent first and second elements, axially through the second element and then radially between the second element and a third element adja-cent thereto on the opposite side to the first.
Patent CA-2108344-A1 (CA)
Title: Pinch bottom bag with opening means
Inventor: TENICK RICHARD
IPC: B65D33/28
Filed: 1993-10-13
Abstract: ABSTRACT OF THE INVENTION    A pinch bottom bag is formed by overlapping and securing its bottom to form a folded bottom.  A tear line is embedded in the bottom fold which extends partially across the width of the bag and along the folded bottom and then extend away from bag bottom to form an opening when torn out of the bag.
Patent CA-2109777-A1 (CA)
Title: Schizophrenia
Inventor: HORROBIN DAVID F
IPC: A61K31/201
Filed: 1993-11-23
Abstract: ABSTRACT                    SCHIZOPHRENIA The negative symptoms of schizophrenia and/or low cell membrane levels of EFAs may be treated with a combination of arachidonic acid and docosahexaenoic acid.
Patent CA-2109947-A1 (CA)
Title: Rake receiver with selective ray combining
Inventor: BOTTOMLEY GREGORY E
IPC: H04B1/7115
Filed: 1993-03-25
Abstract: Chips samples arrive via an RF receiver and I and Q buffers, where they are passed to a multiplexer. The multiplexer selects two independent ranges of chip samples from the same or different channels. The outputs of the multiplexer are correlated to a known sequence in complex correlators, whose output are, in turn, multiplied by complex weights in complex multipliers. The products are then passed to an accumulator, whose output is sent to a threshold decision device to yield the binary data extracted from the received signal.
Patent CA-2110114-A1 (CA)
Title: Safety Needle Syringe
Inventor: BELL JON S
IPC: A61M5/178
Filed: 1993-11-26
Abstract: A safety needle syringe includes a barrel having an  inside  surface  defining  a  chamber,  an  open proximal  end  and  a  distal  end.   A  movable  needle carrier is positioned in fluid-tight engagement with the  inside  surface  of  the  barrel  and  includes  a distal end,  a proximal end and a passageway there-through in fluid communication with the chamber. A needle cannula projects outwardly from the distal end of the carrier and includes a lumen in fluid communication with the  passageway.   A plunger assembly is slidably positioned  in  fluid-tight  engagement  with the  inside  surface  of  the  barrel.   Structure  is providing for allowing the distal end of the plunger to engage the carrier  for allowing axially directed and rotational forces applied to the proximal end of the  plunger  to  be  transmitted  to  the  carrier. Control structure is provided for helping to prevent movement of the carrier with respect to the barrel during normal use of the syringe while the control structure  is  in  a  first  locked  position  and  for allowing the carrier to be moved proximally into the chamber through forces applied to the plunger while the control means is in a second unlocked position.
Patent CA-2111308-A1 (CA)
Title: Components and catalysts for the polymerization of olefins
Inventor: SACCHETTI MARIO
IPC: C08F4/64
Filed: 1993-12-13
Abstract: ABSTRACT          The present invention relates to spherical solid catalyst com-ponents for the polymerization of olefins, comprising a tita-nium compound,  supported on a magnesium halide,  containing more than one Ti-halogen link and optionally containing groups different from halogen in an amount lower than 0.5 mole per mole of Ti.          Spherical solid compounds of the invention are characterized by having a surface area, measured by the BET method, of lower than 70 m2/g,  a total porosity,  measured by the mercurium method, higher than 0.5 cm3/g and a pore radius such that at least 50% have values higher than 800 .ANG..
Patent CA-2115341-A1 (CA)
Inventor: BURZYNSKI JEAN-PIERRE
IPC: B01J38/06
Filed: 1994-02-09
Abstract: Procédé continu pour l'isomérisation squelettale des n-oléfines renfermant au plus 20 atomes de carbone, en présence de catalyseur essentiellement constitué d'alumine et de titane, dans lequel on fait circuler une charge contenant lesdites noléfines à travers au moins une zone de réaction à lit mobile, le catalyseur s'écoulant dans chaque zone de réaction. Le catalyseur soutiré de la dernière zone de réaction est envoyé dans une zone de régénération à la sortie de laquelle il estenvoyé dans une zone où il subit un traitement à la vapeur avant réintroduction dans la première zone de réaction.Le procédé est mis en oeuvre en présence de vapeur d'eau de façon à ce que le catalyseur soit en contact de 3 - 85 % en poids (par rapport au poids de catalyseur) de vapeur d'eau. Le rapport molaire eau/charge oléfinique dans la zone de réaction est compris entre 0,1 et 3.
Patent CA-2117552-A1 (CA)
Title: Preparation process of taxane derivatives
Inventor: DEPREZ DOMINIQUE
IPC: C25B3/25
Filed: 1993-03-11
Abstract: Process for electrochemical preparation of taxane derivatives of general formula (I) based on a product of general formula (II). In general formula (I), Ar denotes an aryl radical, R1? is a benzoyl radical or R2?-O-CO- radical in which R2? is an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, phenyl or heterocyclyl radical and R is a hydrogen atom of the acetyl radical. In general formula (II), Ar and R are defined as in general formula (I), R' is an acetyl or trichloro-2,2,2 ethoxycarbonyl radical and G1? is a trichloro-2,2,2 ethoxycarbonyl radical and G2? is a hydrogen atom. The products of general formula (I) have outstanding anti-tumoral properties.
Patent CA-2118999-A1 (CA)
Inventor: REICHARDT KLAUS H
IPC: E03C1/29
Filed: 1994-03-14
Abstract: Water conservation is accomplished by a waterless urinal odor trap (10) containing a barrier (14) of oily liquid that is lighter than urine and thus allows urine to immediately permeate downwardly through the barrier (14) and ultimately discharge to an external wastewater disposal system, without requiring flushing, while acting continuously as an odor seal and thus eliminating the need for a conventional S- or P- trap. Odor trap (10) is readily assembled from two molded plastic parts (10A, 12) that snap together in a detent action to form an integral coaxial dual-chamber bell trap unit; this fits readily into a cylindrical cavity provided in a urinal system. The oily liquid is specially formulated to have low specific gravity, below 0.9, for operational efficiency and is made biodegradable for environmental protection of the wastewater system with regard to small traces that may escape. The only maintenance required is occasional replenishment of the oily liquid. Maintenance can be further minimized by the use of an auxiliary oil reservoir (20, 20A) serving one or more urinals. Subject odor trap meets safety and sanitation code requirements for public, business and residential facilities, provides important water conservation, operates at much lower cost than even the most economical of conventional flushing urinals, and is well suited both to new installations and retrofitting of existing facilities.
Patent CA-2121165-A1 (CA)
Title: Production of cross-laminated film from tube
Inventor: PLANETA MIREK
IPC: B29C69/00
Filed: 1994-04-13
Abstract: A cross-oriented multi-layer laminated plastic film is produced by first providing a flattened tubular plastic film having a outer plastic film layer with a first melting temperature and an inner plastic film layer with a second melting temperature lower than the first melting temperature, the outer plastic film layer having a molecular orientation substantially in the direction of the length of the tubular plastic film. The flattened tubular plastic film is passed from an expanding station in an expanded condition along a predetermined path in the direction of the length of said film to a collapsing station in a continuous manner. The expanded tubular plastic film is rotated about the predetermined path as the film passes from the expanding station to the collapsing station to effect cross-orientation of the outer film layer in directions inclined to the direction of travel of the tubular plastic film. The tubular plastic film is flattened at the collapsing station and pressure is applied to the flattened film at a temperature high enough to soften the inner plastic film but low enough not to soften the outer plastic film layer to an extent to cause the outer plastic film layer to lose its molecular orientation. The said pressure causes the opposite sides of the tubular plastic film to engage one another and to cause adjacent inner film layers to become bonded together and to the outer film layers to form a cross-oriented multi-layer laminated plastic film.
Patent CA-2121428-A1 (CA)
Inventor: CHOPIN THIERRY
IPC: C09D7/62
Filed: 1994-04-15
Abstract: Novel compositions based on coloured rare-earth sulphides of core-shell type, which are characterised in that they include (i) a support based on at least one rare-earth sesquisulphide of formula M2S3 in which M denotes at least one element taken from the group consisting of the lanthanides of atomic number between 57 and 71 inclusive, preferably cerium, and yttrium, the said support additionally containing at least one alkali metal and/or alkaline-earth metal element, preferably sodium, at least a part of which, and preferably all of which, is included in the crystal lattice of the said sesquisulphide, and (ii) a layer based on at least one transparent oxide, preferably silica, deposited at the surface of the said support and coating the latter. The invention also relates to a process for obtaining these compositions, which consists (i) in bringing the support and a precursor of the desired transparent oxide into contact, (ii) in precipitating, according to a number of possible methods (hydrolysis, basic precipitation or other), the transparent oxide and, finally, (iii) in separating the composite obtained from its reaction mixture.   Finally, it relates to the use of the said compositions for colouring various materials, in particular plastics.
Patent CA-2123146-A1 (CA)
Title: Optical Fiber for Wavelength Division Multiplexing
Inventor: CHRAPLYVY ANDREW R
IPC: G02B6/02
Filed: 1994-05-09
Abstract: Optical fiber including a core and a clad suitable for use in wavelength division multiplex systems. The fiber can have an attenuation at 1550nm less than 0.25dB/km, a cut off wavelength of less than 1.40µm, and a dispersion slope less than 0.15ps/(nm2-km).
Patent CA-2126138-A1 (CA)
Title: Transgenic fish and vectors therefor
Inventor: DEVLIN ROBERT H
IPC: C07K14/46
Filed: 1994-06-17
Abstract: Sockeye salmon growth hormone genes Types 1 and 2, and sockeye histone and metallothionein gene promoters have been isolated and sequenced. Terminator sequences for the growth hormone gene have been found. Vectors containing these promoter and terminator sequences (and intermediate sequences) have been prepared and used to transform fish egg cells. Transformed fish egg cells have been grown into transgenic fish. In the case of inserted full-length growth hormone gene, both accelerated growth and early smoltification were observed. An aspect found beneficial is to combine homologous fish metallothionein or histone gene promoter with fish gene, preferably growth hormone gene, terminator in the same vector, for preparing transgenic fish.
Patent CA-2126176-A1 (CA)
Title: Dynamic postural stability splint
Inventor: BALLANTYNE JENNIFER
IPC: A61F5/02
Filed: 1992-12-24
Abstract: A dynamic postural stability splint in the form of a garment (10), the garment comprising a plurality of pieces of flexible elastic material connected together to form the garment (10). Selected pieces (12) of the flexible elastic material are configured and positioned in the garment (10) so as to provide lines of pull (14) on the wearer's body in predetermined directions whereby, in use, the garment (10) can help to improve postural stability of the wearer. The dynamic splint is particularly advantageous in its application to children and adolescents with cerebral palsy. The garment may take the form of a body suit (10), or be designed for individual limbs of the wearer in the form of a hand splint, arm splint, leg splint, etc. A method of manufacturing a dynamic splint and a method of treating postural instability are also described.
Patent CA-2126393-A1 (CA)
Title: Telephone line multiplier interface
Inventor: DOSANI NAZIR
IPC: H04Q3/42
Filed: 1994-06-21
Abstract: A telephone line multiplier interface detects a ringing pattern specific to an assigned telephone number associated with a telephone device connected to the interface, and routes the incoming call to the appropriate device.  A single line status detector connected upstream of the device switches allows calls to be transferred from one device to another while "off-hook", allows for other devices to be selectively disabled when one device is in use, and allows for selectively enabling a ringing function of the dialled device and other devices.
Patent CA-2128961-A1 (CA)
Title: Layered chewing gum confection
Inventor: KABSE KISHOR
IPC: A23G3/00
Filed: 1994-07-27
Abstract: A novel, multi-layer chewing gum gel-creme confection is prepared using layers of chewing guru sandwiched about a layer or layers of a hydrophilic gel-creme confection. The multi-layered confection affords an up-front taste sensation provided by the hydrophilic components of the gel-creme with a subsequent onset of longer lasting, sustained flavor provided by the chewing gum composition. Aesthetically appealing, the layered confection also provides a unique, initial soft chewing texture which converts to a standard chewing gum after several minutes of chewing.
Patent CA-2131313-A1 (CA)
Title: Process for producing copolymers from monoethylenically unsaturated monomers containing acid groups and from n-vinyl lactames
Inventor: MANDERLING HARALD M
IPC: A61K8/00
Filed: 1993-03-03
Abstract: Abstract of the Disclosure:  Copolymers are prepared from monoethylenically unsaturated monomers containing acid groups and N-vinyllactams and, if required, other mono-ethylenically unsaturated monomers by copolymerization of monomers in the presence of free radical polymerization initiators by a solution polymerization method in water at a pH of at least 6, by a process in which an alkali metal base or an alkaline earth metal base or a mixture thereof is used for establishing the pH of the aqueous reaction solution.
Patent CA-2133359-A1 (CA)
Title: Auditorium Air Circulation System
Inventor: ZEIDLER EBERHARD H
IPC: F24F7/10
Filed: 1994-09-30
Abstract: An auditorium ventilation system for supplying air in an auditorium having a predetermined number of seats, arranged in groups, auditorium. and having, a main duct, and fan operable to cause a predetermined air flow volume, equal to between about 17 and 35 cubic feet per minute, per seat, branch ducts connecting to the main duct and a plenum located beneath the floor level of the auditorium, a plurality of floor openings connecting with the plenum, a plurality of air outlet registers located above the floor level of the auditorium, connected to respective floor openings, each register being located beneath a respective seat, and, each of the floor openings being adapted to pass between about 17 and 35 cubic feet of air per minute, at a velocity not exceeding about 500 feet per minute, and each outlet register being adapted to receive air flow from its respective floor opening, and to reduce the velocity thereof, and distribute air beneath the respective seat at a velocity of between about 50 and 100 feet per minute.
Patent CA-2134796-A1 (CA)
Inventor: AMSALLEN MARCEL
IPC: F16H59/44
Filed: 1994-11-01
Abstract: A method and apparatus for selecting a transmission starting gear based on calculated gross vehicle weight is disclosed. The vehicle speed and grade are monitored by sensors which provide data to a computer. The computer is programmed to calculate vehicle acceleration from the sensed speed and to adjust the acceleration value so as to eliminate the effect of grade. The gross vehicle weight is then calculated from the adjusted acceleration value.      Based on the calculated gross vehicle weight and the existing grade, an appropriate starting gear is automatically selected by the computer from a look-up table stored in memory.
Patent CA-2136707-A1 (CA)
Title: Screen film cassette
Inventor: MCLEAN DONALD
IPC: G03B42/04
Filed: 1994-11-25
Abstract: A screen film cassette for radiographic use.   The cassette includes front and rear screen-film combinations housed  in  container,  and  each  screen-film  combination includes a pair of intensifying screens which sandwich a film.   A dividing  filter  is  located between  the  two screen-film combinations to improve X-ray beam intensity incident on the back screen-film combination.  The filter also  reduces  the  transfer  of visible  light  energy or K-characteristic photon energy, generated in one screen-film  combination  during  the  imaging  process,  to  the adjacent screen-film combination.  The invention provides for  improved  radiographic  film  contrast  and  image resolution.
Patent CA-2138093-A1 (CA)
Title: Method and system for selectively applying an appropriate object ownership model
Inventor: D SOUZA DAVID J
IPC: G06F9/44
Filed: 1994-12-14
Abstract: A method and system for applying an appropriate object ownership model is provided. In a preferred embodiment, an operating system selectively applies an object ownership model with which running programs are compatible. This permits programs designed to be used with operating systems that do not apply a rigorous object ownership model to be used with an operating system capable of applying a rigorous object ownership model. The method and system has both an automatic object deallocation phase and an object access control phase. In the automatic deallocation control phase, the method and system defers the automatic deallocation of objects owned by programs that are incompatible with automatic object deallocation until a later time at which no such programs are still running. Instead of immediately deallocating the objects owned by a terminating program, the method and system designates them for deferred deallocation. At a later time, the method and system checks to see whether any programs that are incompatible with automatic object deallocation are still running, and, if none are, the method and system deallocates all objects designated for deferred deallocation. In the object access control phase, the method and system allows special permissive access to objects owned by programs that are unable to authorize access to the object by other programs. Instead of denying access by a requesting program to an object owned by a program that is unable to authorize access to the object by other programs because it has not authorized any other programs to access the object, the method and system allows the requesting program to access the object.
Patent CA-2139839-A1 (CA)
Title: Sealing structure for light-emitting bulb assembly and method of manufacturing same
Inventor: NAGAYAMA HIROYUKI
IPC: H01J61/30
Filed: 1993-07-09
Abstract: A sealing structure for a light-emitting bulb as-sembly includes a closure having a core which serves as an electrode and sealing an open end of a bulb.  The closure in-cludes a bulb-side region disposed adjacent to the open end of the bulb and made of a compositional ingredient having a coefficient of thermal expansion which is substantially the same as that of the bulb, a core-side region disposed adja-cent to the core and made of a compositional ingredient hav-ing a coefficient of thermal expansion which is substantially the same as that of the core, and an intermediate region dis-posed between the bulb-side region and the core-side region and made of a compositional ingredient having compositional proportions adjusted such that a coefficient of thermal ex-pansion thereof varies gradually from the coefficient of thermal expansion of the bulb-side region toward the coeffi-cient of thermal expansion of the core-side region.  The bulb-side region and the core-side region are separated from each other by the intermediate region and comprise a bulb-side region layer and a core-side region layer, respectively, which are independent of each other.  The intermediate region comprises at least one layer whose coefficient of thermal ex-pansion varies gradually from the bulb-side region toward the core-side region.  The layers of the closure are progres-sively thicker from the bulb-side region layer toward the core-side region layer.