baber/WOPTO huggingface dataset:
Patent CA-2020438-A1 (CA)
Title: Vascular prothesis containing in the wall microcapsules, including hormone-producing cells
Inventor: BROTZU GIOVANNI
IPC: A61F2/06
Filed: 1990-07-04
Abstract: VASCULAR PROSTHESIS CONTAINING IN THE WALL MICROCAPSULES INCLUDING         HORMONE-PRODUCING CELLS     ABSTRACT OF THE DISCLOSURE           Vascular prosthesis of PTFE or of a low porosity material comprising an internal synthetic tubular mesh;  microcapsules made of saccharide and amino-acid polymers, containing hormone-producing cells, are placed between the prosthesis and the tubular mesh.
Patent CA-2021821-A1 (CA)
Inventor: HARADA KEIZO
IPC: H01B12/06
Filed: 1990-07-24
Abstract: A superconducting thin film of Bi-containing compound oxide deposited on a substrate, a buffer layer made of Bi2O3 being interposed between the superconducting thin film and the substrate.
Patent CA-2022784-A1 (CA)
IPC: F16K1/226
Filed: 1990-08-07
Abstract: A rotary valve assembly having a housing, a valve member and a seal assembly. The seal assembly has at least one seal subassembly with two resilient sealing elements, each having a substantially linear section and a curved section formed integrally with the linear section. The linear and curved sections of the two sealing elements are disposed adjacent each other. The two resilient sealing elements may have different resiliency characteristics.
Patent CA-2027209-A1 (CA)
Title: Process for the preparation of substituted phenols
Inventor: ILLY HUGO
IPC: C07B61/00
Filed: 1990-10-10
Abstract: The substituent X in the phenols of formula (see formula I) wherein R1 to R4 are hydrogen or unsubstituted or substituted alkyl, alkenyl or alkynyl, and X is secondary or tertiary alkyl of 3 to 9 carbon atoms, can be removed by heating said phenols in the presence of an alkali metal hydrogensulfate.
Patent CA-2028057-A1 (CA)
Title: Animal hat
Inventor: COLLIER SUE
IPC: A01K29/00
Filed: 1990-10-19
Abstract: ABSTRACT OF THE DISCLOSURE          An animal hat comprises a cap portion, ear wraps to either side of the cap portion and a neck strap extending between the ear wraps.  The neck strap includes at least one elasticized region to accommodate fitting of the strap to different sizes of animals.
Patent CA-2030831-A1 (CA)
Title: Apparatus for dispensing particulate materials
Inventor: LALANDE BRIAN J
IPC: B65B3/08
Filed: 1990-11-26
Abstract: APPARATUS FOR DISPENSING PARTICULATE MATERIALS                ABSTRACT    Apparatus for dispensing particulate material, comprising a supply hopper for holding a supply of the material, and including an inlet for receiving the material and an outlet for discharging the material, and a rotary dispenser extending into the hopper and supported for rotational movement therein to discharge material from the hopper through the outlet thereof.  The apparatus further comprises a stepper motor connected to the rotary dispenser to rotate that dispenser; and a control connected to the stepper motor to actuate that motor at each of a multitude of times to discharge a preset volume of material from the hopper and through the outlet thereof.  The stepper motor may be used to achieve very precise control over movement of the rotary dispenser, resulting in a corresponding very precise control over both the volume and weight of the material discharged form the supply hopper, while at the same time, simplifying the design, construction and operation of the entire dispensing apparatus.     LPATCASE:124
Patent CA-2037565-A1 (CA)
Title: Method of de-alcoholizing beverages
Inventor: SCHWINGHAMMER GUENTER
IPC: C12H3/04
Filed: 1991-03-05
Abstract: METHOD OF DE-ALCOHOLIZING BEVERAGES                     ABSTRACT OF THE DISCLOSURE    A process and apparatus for removincg aloohol from beverages includes removing alcohol from the beverage to a dialyRake by dialysis in a dialysis chamber, and then removing the alcohol from the dialysate by vacuum in a vacuum stripping column, wherein the dialysate is cooled in a haat exchanger and thereafter in a cooling device prior to entry of the dialysate into the dialysis chamber, and the dialysate i8 heated in the heat exchanger and thereafter in a heater prior to removal of the alcohol from the dialysate by vacuum.
Patent CA-2039338-A1 (CA)
Title: Pool clip
Inventor: MASOTTI JOHN
IPC: E04H3/06
Filed: 1991-03-28
Abstract: ABSTRACT OF THE INVENTION            This invention relates to a break away cover slip releasably securable with a projecting edge of a swimming pool coping, said break away cover clip extending generally longitudinally along the length thereof and presenting in cross-section, a pair of spaced apart legs adapted to releasably embrace said projecting edge of the swimming pool coping, and a channel for receiving an edge of a swimming pool cover.
Patent CA-2039485-A1 (CA)
Title: Process for producing transformer oil from a hydrocracked stock
Inventor: OLAVESEN CHRISTOPHER
IPC: C10N70/00
Filed: 1991-03-28
Abstract: The present invention is directed to the production of a formulated transformer oil by the process involving fractionating the product coming from a hydrocracker to produce a distillate boiling in the transformer oil range, dewaxing the fraction, optional-ly hydrofinishing the fraction and adding to said fraction an effective amount of anti-oxidant and/or pour point depressant. The formulated transformer oil produced by this process has properties equivalent to those of formulated naphthenic transformer oil.
Patent CA-2039784-A1 (CA)
Inventor: LENDARO JEFFERY B
IPC: H04N3/18
Filed: 1991-04-04
Abstract: ABSTRACT           To produce a cathode voltage of a cathode ray tube that provides black level compensation, a secondary winding of a flyback transformer is coupled in series with a resistor, a capacitor and a rectifying diode. During flyback, a voltage pulse is developed across the capacitor at a magnitude that increases when the average value of the beam current increases. The voltage pulse causes the cathode voltage to first decrease when the beam current increases.
Patent CA-2040558-A1 (CA)
Inventor: BINGHAM JOHN A C
IPC: H04L27/26
Filed: 1991-04-16
Abstract: A method of correcting for the impairments of phase jitter and frequency offset imposed by a transmission medium and of a clock frequency difference between a transmitting and a receiving multicarrier modem is disclosed.  The method comprises two modes:  a training mode that uses pilot tones, and a data mode that uses random data modulated onto many carriers.  During the training mode the frequencies of the phase jitter are estimated, and the parameters of a correcting signal are initialized;  during the data mode the correcting signal is used to compensate for the impairments, and then is updated from an estimate of the phase error.
Patent CA-2040842-A1 (CA)
IPC: F01M5/02
Filed: 1991-04-19
Abstract: The present invention is a crankcase heater for preventing the migration of liquid refriger-ant.  The heater is located on the compressor housing surface near the oil sump.  The heater is positioned within a fence of a terminal assembly, covering substantially all the surface area en-closed by the fence except for the terminal clus-ter itself.  The heater provides heat to the hous-ing and the interior of the compressor, and the gasket insulates the heater and interiorly re-flects the heat produced.  Liquid refrigerant in the oil sump is boiled off to increase the pres-sure inside the housing and inhibit migration of refrigerant from the evaporator or accumulator.
Patent CA-2046248-A1 (CA)
Title: Power conserving technique for a communications terminal time slot interchanger
Inventor: EAMES THOMAS R
IPC: H04J3/04
Filed: 1991-07-10
Abstract: A communications terminal interfaces a large number of potential  individual telephone subscriber channels with a wide bandwidth, time multiplexed fiber optic  or other type of trunk line.   A time  slot interchanger within the terminal assigns each of the subscriber channel time slots to one of the time slots in the trunk line signal.  Data of the individual time slots of a frame of data of all channels is sequentially stored in a random access memory and then read out in a different sequence.  A uniquely addressed location is provided in the memory for data of each individual channel.   For cases where all channels are not being utilized, the system omits reading and/or writing data into the corresponding memory data locations not being used, thus saving power.
Patent CA-2047035-A1 (CA)
Title: Stepladder
Inventor: SCHYDLO MARTIN T
IPC: E06C9/02
Filed: 1991-07-15
Abstract: ABSTRACT    The present invention pertains to a stepladder composed of individual segments, wherein the segments are connected to one another in a positive-locking manner.
Patent CA-2047150-A1 (CA)
IPC: B60W30/18
Filed: 1991-07-16
Abstract: An automatic transmission which includes a clutch (6); a clutch actuator (7) for detecting and controlling a position of the clutch; a transmission (1); a transmission actuator (2) for driving the transmission; a vehicle speed detector (22) for detecting a vehicle speed; a throttle opening detector (11) for detecting a throttle opening; an automatic shift unit (30) including a gear shift map (30a, 30b) having a gear shift characteristic which is determined based on the vehicle speed and the throttle opening; a computer unit (30c) for computing an instant gear position of the transmission based on the vehicle speed and the throttle opening according to the gear shift map; a gear position selector (30d) for controlling the transmission actuator based on the instant gear position to upshift or downshift the transmission; a shift prohibit unit (40) for determining whether the instant gear position matches the previous gear position from a memory (40a) for a predetermined times in a predetermined period and, if they do not match for the predetermined times, invalidating the instant gear position and prohibiting any shift operation according to the gear shift map; and a shift determination unit (41) for establishing an upshift prohibit condition when the throttle opening is equal to or less than a predetermined value while releasing the upshift prohibit condition when the vehicle speed is low or the clutch is in a position toward disengagement from a half clutch position, or with a low-speed gears even if the throttle opening is equal to or less than the predetermined value.
Patent CA-2049381-A1 (CA)
Inventor: GOLDEN TIMOTHY C
IPC: B01J20/06
Filed: 1991-08-16
Abstract: PATENT - 211PUS04652 ABSTRACT The present invention is directed to a process for adsorptive separation of carbon monoxide or olefins from gas mixtures using adsorbents. which comprise cuprous compounds dispersed on amorphous oxide or carbon macroporous supports. The compositions are prepared by impregnating cupric compounds on preferably pretreated supports with the aid of an aqueous solution of an ammonium salt of a di- or polycarboxylic acid dispersant, such as ammonium citrate, followed by reduction of the cupric compound to the corresponding cuprous compound. The reduction can be performed either by the use of elevated temperature or by the use of a reducing gas preferably carbon monoxide at relatively low temperatures up to 150°C. Methods of synthesis are also disclosed.
Patent CA-2049810-A1 (CA)
Title: Water-repellent and oil-repellent treatment agent
Inventor: OZAKI MASARU
IPC: D06M13/51
Filed: 1991-08-23
Abstract: WATER-REPELLENT AND OIL-REPELLENT TREATMENT AGENT                 ABSTRACT OF THE DISCLOSURE A treatment agent in which a base component and a crosslinking component contain silicon-bonded perfluoroalkyl groups and curing groups.  The components are mutually soluble to homogeneity as a consequence, and this makes possible long-term storage of the mixture of the two components.  Moreover, when this treatment agent is used on fibers, textiles, plastics, metals, or porous inorganics and cured, an excellent water repellency and oil repellency are generated because a uniform film is developed.
Patent CA-2049880-A1 (CA)
IPC: E21B33/122
Filed: 1991-08-26
Abstract: COMPACT  RETRIEVABLE PACKER     ABSTRACT         A compact, retrievable packer (10) has a unitary mandrel body  (40)  which is intersected by one or more longitudinal bores (42, 44).  The effective running length of the packer is reduced by an improved arrangement of packer components which serve multiple functions.   The hydraulic actuator (38) includes a setting cylinder (58) which also serves as an internal slip housing, a lower element retainer, a piston extension, and a part of the release apparatus.  A release sleeve (62) serves as a part of the release apparatus,  as a mandrel for engaging a locking slip  (84),  and forms a fixed boundary of the hydraulic pressure chamber (60).   The effective running length of the packer is further reduced by making the upper wedge (78)  for reacting the setting forces as an integral part of the packer mandrel body (40).
Patent CA-2050108-A1 (CA)
Title: Spectroscopic determination of amount of one constituent of a fluid mixture in another constituent or in the fluid mixture itself, following separation of the mixture into its constituents
Inventor: HALPERN GERALD M
IPC: G01N21/27
Filed: 1991-08-28
Abstract: A method (and apparatus) is disclosed for the spectroscopic determination of the amount ~Nn of one constituent N of a fluid mixture 0 in another constituent n of the mixture, following separation of the mixture into its constituents 1,...,M (where n, N ~ M). The method involves determining the absorptivities a n (n = 1,...,N) of the M constituents from spectroscopic measurements and computing the amount ~Nn from a mathematical expression containing the absorptivities a n and a N which are expressed or expressable as the quotient a n/a N only. The method is insensitive to changes in the absorptivities due to feed variability or changes in upstream process conditions. A modification to the method involves determining the content ~N0 of constituent N in feed 0 from a mathematical expression containing a0, where a0 is the absorptivity of the feed 0, and a N, which absorptivities a0 and a N are expressed or expressable as the quotient a0/a N only.
Patent CA-2051591-A1 (CA)
IPC: E04G5/12
Filed: 1991-09-17
Abstract: A  scaffold  enclosure  having  a  plurality  of panels is disclosed.  Each panel has a closure on a first lateral edge for securing that edge to an upright on the scaffolding.  The closure can be straps having first and second  flaps with hook and loop closures thereon for securing the straps to various sized uprights.   Each panel also has fasteners, preferably continuous strips of hook and loop closures  on both its  inner and outer surfaces at each edge.  The panels are thus engageable on one another to form a scaffold enclosure with completely sealed seams.   To facilitate installment, two types of panels,  starter  panels  and  continuing  panels,  are utilized,  each  having  a  particular  arrangement  of fasteners.
Patent CA-2051833-A1 (CA)
Title: Web handling method and apparatus
Inventor: MCKENNA THOMAS G
IPC: B26D7/18
Filed: 1991-09-19
Abstract: Docket M-528 Abstract of the Disclosure There is disclosed a web handling apparatus including a printer for printing on longitudinally extending multi-portion webs,  with the web including a plurality of longitudinally extending web portions and connected at a longitudinal line of weakening between each adjacent pair of web portions, each web portion including record members, guide structure for causing adjacent web portions to move along different paths or planes to effect tearing and resultant separation of the web portions at each line of weakening,  and a rewinder for drawing on the separated web portions and winding them into separate rolls.  In the event tearing does not occur readily along the lines of weakening, there are knives to assist in separating the web portions.
Patent CA-2052692-A1 (CA)
Inventor: DOSSOT ALAIN
IPC: H04N3/16
Filed: 1991-10-03
Abstract: This invention relates to a deflection arrangement for a video display of color pictures. The arrangement comprises a deflection yoke 10 including a pair of vertical deflection coils 11a and 11b toroidally wound on a magnetic core 12, using a multi-layer terminal technique. An RC network 100 is coupled between an intermediate terminal of the firstly wound layer of one of the coils 443a and between an intermediate terminal of the firstly wound layer of the other one of the coils 443b. The RC network 100 suppresses ringing in the coils that are produced by a horizontal deflection coil 13 during horizontal retrace.
Patent CA-2053503-A1 (CA)
Inventor: CLAVERIE PIERRE
IPC: C21D1/76
Filed: 1991-10-16
Abstract: On élimine sensiblement tout gaz oxydant résiduel dans une enceinte de traitement, neutre ou réductrice, par injection dans cette dernière d'un hydrure de silicium à l'état gazeux, à une température comprise entre 50 et 1600.degree.C et à une teneur telle que le rapport R de la teneur d'hydrure à lateneur de gaz oxydant à éliminer est comprise entre 1,5 et 20. La rapidité d'action des traces d'hydrure injecté permet de piloter avec précision le procédé de traitement thermique en maintenant les teneurs résiduelles en gaz oxydant au-dessous de seuils déterminés très faibles.
Patent CA-2054515-A1 (CA)
Inventor: MALICK SHAHZAD H
IPC: B65H29/58
Filed: 1991-10-30
Abstract: An apparatus and method for changing the direction of motion of flat articles being conveyed along a first path to a second path. The apparatus comprises a deck mounted on a frame. The deck has a first side for receiving an article from a first direction and a second side for conveying the article in a second direction which forms an acute angle equal to or less than forty-five degrees (45°) with the first direction. There is a structure for conveying the article over the deck in the second direction. The conveying structure engages a leading edge of the article only after the article has been disengaged by a conveying structure in the first direction. There is a registration wall positioned downstream from the second direction conveying structure adjacent a third side of the deck. The registration wall extends a third direction whereby the registration wall is at a right angle to the first direction, wherein the leading edge of the article is driven against the registration wall after the article has been disengaged by the second direction conveying strcture.      There is a structure for conveying the article in the third direction after the article is against said registration wall.
Patent CA-2054809-A1 (CA)
Title: Self-propelled drilling module
Inventor: MOCHIZUKI DAVID A
IPC: E21B41/00
Filed: 1991-11-05
Abstract: SELF PROPELLED DRILLING MODULE                           ABSTRACT      There is provided a portable drilling module that is preferably mounted onto a self-propelled carrier. Winterizing panels enclose equipment mounted aboard the module and provide an environmentally sheltered space for workmen.  In particular, the panels fully surround a rear portion of the module that is adapted to be positioned over a well, and allow a full load of pipe to be temporarily stored within this portion of the module. Moreover, a number of the panels may be removed to reduce the weight of the module so that it can be transported and used for workover operations in warmer months.
Patent CA-2056102-A1 (CA)
Title: Method for the production of antibodies
Inventor: STEENBAKKERS PETRUS G A
IPC: C12N5/10
Filed: 1991-11-25
Abstract: The invention relates to a novel method for the generation of monoclonal antibodies. The method involves the combination of a clonal expansion of B-lymphocytes followed by or preceded by a selection of B-lymphocytes which produce antibodies with the desired specificity.      The selected lymphocytes are immortalized.      The invention makes it possible to use any source of B-lymphocytes no matter how small.
Patent CA-2056304-A1 (CA)
Title: Information processing and apparatus including inputing implement and tablet
Inventor: BLONDER GREG E
IPC: G06F3/0488
Filed: 1991-11-27
Abstract: Information processing, for example by means of a computer, is served by a tablet in combination with an inputting implement such as stylus or human finger. Such a tablet-implement combination may serve in lieu of or ancillary to other inputting means such as a keyboard. Implement positional information, e.g., as contacting the tablet, depends upon interpolation as between segmentinglines in the tablet. Cost advantage commensurate with resolution/noise desiderata is ascribable to use of analog information (without digitization) in interpolation.
Patent CA-2058819-A1 (CA)
Title: Apparatus for the intermittent storage and controlled feeding of volatile gasoline components into the intake manifold of an internal combustion engine
Inventor: BUCHALLA HARALD
IPC: F02M25/08
Filed: 1992-01-06
Abstract: Apparatus for the intermittent storage and controlled feeding of volatile fuel components present in an unfilled space of a fuel tank into the intake manifold of an internal combustion engine, having a vent conduit which extends between the unfilled space and the intake manifold, includes an absorption element and is closable by a servo-valve positioned in series after the absorption element.  The vent conduit is further provided with a first sensor which is positioned in series before the absorption element and detects a gas flow through the vent conduit.  A vacuum actuated valve which is positioned in series before the servo-valve is provided with a second sensor which detects its actuation.  The first and second sensors are connected for signal transmission with a diagnosis block which compares the two signals of the sensors for error diagnosis with a servo-valve control signal.  With the apparatus, a controlled feeding of the fuel volatiles is achievable without using complex sensory systems in addition to the sensors already used in the control of the operating conditions of the internal combustion engine.
Patent CA-2059141-A1 (CA)
Title: Adaptive-block-length, adaptive-transform, and adaptive-window transform coder, decoder, and encoder/decoder for high quality audio
Inventor: DAVIDSON GRANT A
IPC: G10L19/02
Filed: 1991-04-12
Abstract: This invention relates in general to high-quality low bit-rate digital transform coding and decoding of information corre-sponding to audio signals such as music signals. More particularly, the invention relates to signal analysis/synthesis in coding and decoding. The invention can optimize the trade off in transform coders between time resolution and frequency resolution by adaptively selecting the transform block length for each sampled audio segment, and/or can optimize coding gain by adaptively selecting the transform and/or by adaptively selecting the analysis window or the analysis/synthesis window pair.