baber/WOPTO huggingface dataset:
Patent CA-1280107-C (CA)
Title: Foamed slurry generator
Inventor: CAMERON DONALD C
IPC: E21B43/26
Filed: 1987-10-20
Granted: 1991-02-12
Abstract: FORMED SLURRY GENERATOR               ABSTRACT OF THE DISCLOSURE           A high pressure foam slurry generator, including a source of slurry, a source of gas, and a means for combining the slurry and the gas, which is usually nitrogen.  A housing receiving the slurry and the as has a connector with multiple channels.   One channel for the nitrogen gas acts as an inlet and has a bushing with a series of multiple holes through which the nitrogen gas is broken into a plurality of high velocity streams.  The slurry with a foamer agent added combines at right angles with the nitrogen gas and is foamed before being pumped through a tubing string into a gas or oil well.  Also included herein is a process for making foamed slurry by pumping a slurry capable of being foamed to a housing, pumping nitrogen to the same housing, separating the nitrogen into a plurality of high velocity streams, and combin-ing the streams and the slurry in a foaming action. Either the slurry or the nitrogen may have two sepa-rate streams entering the housing as right angles to each other.  All of the streams are normally combined at right angles to obtain the proper amount of foaming action.
Patent CA-1307575-C (CA)
Title: Cord saver
Inventor: PODJAN ARTHUR
IPC: H02H11/00
Filed: 1987-12-01
Granted: 1992-09-15
Abstract: CORD SAVER     ABSTRACT OF THE DISCLOSURE         An automobile  accessory is  intended  for use with automobiles having various electrical power starting aids that derive their power from a mains current supply through  an  extention  cord.    The  accessory  connects through  an  appropriate  plug  connection  to  the  mains current supply or the extention cord and has receptacles into which the starting aids are themselves plugged.  A relay  switch has  its  coil connected across  the power lines so that when power is applied, the normally closed contacts of the relay will open.  The relay contacts are wired into the starting circuit for the automobile motor to  disable  the  starter  when  the  accessory  or  the extention cord is plugged into a mains power, thus pre-venting a driver from starting the vehicle and driving off with the extention cord still plugged in.
Patent CA-1289198-C (CA)
Title: Line equalizer
Inventor: TAKATORI HIROSHI
IPC: H04B3/04
Filed: 1988-01-29
Granted: 1991-09-17
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is a line equalizer disposed at the front of a circuit for identifying the received digital signal which has been rendered   equalization.          In order to eliminate a precursor interference component and postcursor interference components in the input digital signal, the precursor equalizer for producing a signal by summing a signal derived from the input signal retarded by the transmission clock period and a signal derived from the input signal multiplied by a coefficient in proportion to the degree of interference and inverted for its polarity is configured by a switched capacitor circuit, which is connected in series with an automatic decision feedback equalizer for eliminating postcursor interference components.
Patent CA-1322990-C (CA)
Inventor: PONTOPPIDAN ESKILD
IPC: B65D43/10
Filed: 1988-02-18
Granted: 1993-10-12
Abstract: Abstract A container with removable lid A container  (1)  is  provided with  removable  lid (2). At the top of the side wall of the container there is provided an outwardly projecting bead or bead portions (5, 5', 5") abutted by the lid (2) said lid having a skirt (2a) with downwardly and/or inwardly facing cams (10, 11, 12, 15, 16, 17). The lid (2) is relatively stiff, and the inside of the skirt  (2a) has a concave abutment surface  (2a') near its lower edge portion, said abutment surface being  of  a  substantially  spherical,  conical  or superelliptical curvature and abutting the bead or bead portions (5,  5',  5"). The side wall of the container is provided with a support shoulder (7) beneath the bead or bead portions (5, 5', 5"). The cams are partially snap cams (10, 11, 12) mounted beneath the abutment surface (2a') and adapted to catch the abutment surface (2a') of the skirt when it abuts the bead or bead portions (5), and par-tially one or more  small  fulcrum cams  (16,  17) projecting inwardly or downwardly seen from the lower edge portion of the skirt (2a) and option-ally  extending  along  a  considerable  angle.  The fulcrum cams (16, 17) are of such a height (h) and are arranged with respect to the snap cams  (10, 11, 12) in such a way that they allow at least one of the snap cams to be released from the snapped engagement with the bead or the bead portions (5, 5',  5") when the lid (2) is tilted around two of said fulcrum cams, while they are made to abut the support shoulder (7). As a result a person with a handicapped hand, a person with impaired vision or a blind person is able to remove the lid from the container at any time in a controlled manner, i.e. in such a way that the lid and/or container do not suddenly slip from the person's grasp during the removal of the lid.
Patent CA-1317271-C (CA)
Title: Zeolite zk-5
Inventor: VERDUIJN JOHANNES P
IPC: C10G11/05
Filed: 1988-04-14
Granted: 1993-05-04
Abstract: ABSTRACT                        Improved Zeolite ZK-5 Zeolites having the ZK-5 structure but having a silica/alumina ratio of up to 10 may be prepared by the use of strontium in the synthesis gel, and such zeolites may be useful in hydrocracking, reforming and separation.
Patent CA-1291367-C (CA)
Title: Inking unit for a printing machine
Inventor: GERTSCH PETER
IPC: B41F31/04
Filed: 1988-05-04
Granted: 1991-10-29
Abstract: ABSTRACT     The inking unit includes an inking device which is set against an inking roller provided with a resilient surface and creates a premetered ink film on the inking roller.  A metering ledge wipes the premetered ink film to the size required for transfer to a forme cylinder; the wiped-off, excess ink runs off freely.  The metering ledge, for the purpose of self cleaning, executes a movement preferably directed in the peripheral direction of the inking roller so that the area in contact with the inking roller and forming the metering gap constantly changes.
Patent CA-1304031-C (CA)
Title: Microbial catabolism of tertiary butyl alcohol
Inventor: INSELL JAMES P
IPC: C02F3/34
Filed: 1988-05-11
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE      The novel bacterial strains Bacillus coagulans ATCC 53595, Arthrobacter globiformis ATCC 53596 and Pseudomonas stutzeri ATCC 53602 are able to catabolize tertiary butyl alcohol and therefore useful in treating wastewater to remove the compound prior to discharge.
Patent CA-1282117-C (CA)
Title: Adaptive limiter/detector which changes time constant upon detection of dotting pattern
Inventor: CHILDRESS JEFFREY S
IPC: H04L7/04
Filed: 1988-05-12
Granted: 1991-03-26
Abstract: ADAPTIVE LIMITER/DETECTOR WHICH CHANGES      TIME CONSTANT UPON DETECTION      OF DOTTING PATTERN                ABSTRACT OF THE DISCLOSURE    A limiter/detector which takes advantage of the characteristics of the dotting pattern preceding each message in the General Electric Public Service Trunking System shortens bit synchronization acquisition time and improves incoming signal detection.  Since the lowest frequency component in the dotting pattern is 4800 Hz, the time constant of the receiver adaptive limiter is decreased from 0.1 seconds to 0.33 microseconds (corresponding to a cut-off frequency of 3 KHz) during the time a dotting pattern is (or might be) received.  This decreased time constant allows the limiter to adapt much more rapidly to the DC component of the incoming data signal.  Upon successful decoding of the dotting pattern preceding the message, the limiter circuit time constant is changed to 0.1 seconds to allow lower frequency digital data signal components (e.g., those lower frequency components associated with word sync patterns such as Barker codes) to be detected.  The limiter provides the advantages of decreased falsing rate, more reliable detection of word sync more rapid acquisition of bit sync, better utilization of processing resources, simplification of initial signal detection routines and/or circuitry, and more rapid adaptivity to incoming signalling.
Patent CA-1276469-C (CA)
Title: Textured lapping plate and process for its manufacture
Inventor: HOLMSTRAND ALLAN L
IPC: B24B37/16
Filed: 1988-05-26
Granted: 1990-11-20
Abstract: TEXTURED LAPPING PLATE AND PROCESS FOR ITS MANUFACTURE                ABSTRACT OF THE DISCLOSURE A lapping plate is selectively textured for improved useful life and greater abrading consistency.  Glass beads are serially propelled onto a lapping surface of the lapping plate in order to form spherical cavities of generally uniform size and distribution, and of a desired density.  The cavities provide discontinuity in the lapping surface which substantially prevents workpiece hydroplaning.  The cavities also receive loose abrading grit, workpiece fragments and other contaminants, resulting in more smoothly machined workpiece surfaces.  Use of the lap plate with cavities also has been found to improve the co-planarity of composite magnetic transducing heads.
Patent CA-1286695-C (CA)
Title: Manufacture of distillate hydrocarbons from light olefins in staged reactors
Inventor: HARANDI MOHSEN N
IPC: B01J29/40
Filed: 1988-06-20
Granted: 1991-07-23
Abstract: MANUFACTURE OF DISTILLATE HYDROCARBONS  FROM LIGHT OLEFINS IN STAGED REACTORS                           ABSTRACT          A semi-continuous multi-stage catalytic technique for converting lower olefinic feedstock to heavier liquid hydrocarbon product.  The invention provides methods and means for: a)  contacting alkene-rich feedstock at high space velocity elevated temperature in a continuous primary stage reaction zone with shape selective medium pore zeolite oligomerization catalyst particles to convert at least a portion of the lower olefinic components to intermediate olefinic hydrocarbons, said primary stage catalyst having an average acid cracking activity of about 0.1 to 20;  b) cooling primary stage oligomerization reaction effluent from the primary stage reaction zone to condense at least a portion of the intermediate hydrocarbons, separating the cooled and partially condensed primary reactor effluent stream in a primary phase separation zone into a light gas phase stream comprising light hydrocarbons and a condensed liquid intermediate hydrocarbon stream; and c)  contacting at least an intermediate effluent portion from the primary stage with shape selective medium pore zeolite oligomerization catalyst in a high pressure fixed bed secondary stage distillate mode catalytic reactor system at elevated temperature and high pressure to provide a heavier hydrocarbon effluent stream comprising distillate hydrocarbons, said secondary stage catalyst having an acid cracking activity of at least 5.  A simplified second stage reactor system permits the use of one or more fixed bed reactors to be operated intermittently.
Patent CA-1281388-C (CA)
Inventor: GIZOLME ALAIN
IPC: H01G4/18
Filed: 1988-07-05
Granted: 1991-03-12
Abstract: PATENT APPLICATION entitled: Metallized dielectric sheet for making capacitors of the wound type, and capacitors obtained in the names of:  Alain GIZOLME and Jean-Bernard ALDEGUER assigned to: BELIER INDUSTRIES            ABSTRACT OF THE DISCLOSURE      This invention relates to a metallized dielec-tric sheet for making capacitors of the wound type, wherein the longitudinal zone which joins the trans-verse gaps along the thickened edge and which is intended to melt before the metallized compartments are damaged further to a puncture when the capacitor obtained is first charged, is made of a metal or alloy different from the one forming said compartments and edge.
Patent CA-1331845-C (CA)
Title: Method of inhibiting ice crystal growth in frozen foods and compositions
Inventor: BARNETT RONALD E
IPC: A23L1/308
Filed: 1988-07-21
Granted: 1994-09-06
Abstract: METHOD OF INHIBITING ICE CRYSTAL GROWTH IN FROZEN FOODS AND COMPOSITIONS                            ABSTRACT Ice crystal growth is inhibited in frozen food products by adding a partially delignified plant fiber, a hemicellulose B or mixtures thereof to the frozen food product.
Patent CA-1318075-C (CA)
Inventor: KOJIMA AKIHIRO
IPC: C09D161/20
Filed: 1988-08-03
Granted: 1993-05-18
Abstract: Mo-3158 LeA 25,530 A PROCESS FOR THE PRODUCTION OF POLYNUCLEAR AROMATIC POLYAMINES          ABSTRACT OF THE INVENTION This invention relates to an improved process for the preparation of polynuclear aromatic polyamines, in which the reaction product is prepared by condensing aniline with fonmaldehyde in the presence of water and acjdic catalysts and is worked up by extraction with a hydrophobic solvent. The acid catalyst that accumulates in the aqueous phase during the extraction process is reused.     Le A 25 530
Patent CA-1327267-C (CA)
Inventor: ROTHFUSS HANS
IPC: C21C7/072
Filed: 1988-08-19
Granted: 1994-03-01
Abstract: ABSTRACT            In a gas-fluxing stone of refractory ceramic material, the channels (3, 3') passing through said stone are to be manufactured in a simple manner.  A ceramic inner part (4) is inserted in a ceramic outer part (5).  The channels (3, 3') are formed directly on the inside of the outer part (5) and/or on the outside of the inner part (4).
Patent CA-1305995-C (CA)
Title: Double-enveloped lamp having a shield surrounding a light-source capsule within a thick-walled outer envelope
Inventor: KEEFFE WILLIAM M
IPC: H01K1/26
Filed: 1988-08-26
Granted: 1992-08-04
Abstract: ABSTRACT     A double-enveloped lamp having a shield surrounding a light-source capsule within a thick-walled outer envelope so that the lamp may be safely operated without necessity of a protective fixture.  In the rare event of a burst of the light-source capsule, the shield absorbs and dissipates a portion of the burst energy sufficient to permit the thick-walled outer envelope to remain intact and contain shards and other internal parts within the lamp.  In alternate embodiments, the shield may be reinforced, such as with a wire mesh, or the outer envelope may be reinforced, such as with a polymer coating, or both.  A thin-walled capsule may be employed in combination with a shield and thick outer envelope.  A lamp in accordance with the invention provides the unexpected benefits of improved luminous efficacy and better color rendering characteristics, since the presence of an optimally positioned shield causes the operation of the light-source capsule to be more nearly isothermal.
Patent CA-1303543-C (CA)
Title: Remonte-pente
Inventor: BROUSSEAU JEAN-YVES
IPC: B66B23/02
Filed: 1988-10-13
Granted: 1992-06-16
Abstract: PR?CIS L'invention concerne un remonte-pente pour skieurs, comprenant une station d'embarquement, une station de débarquement et une chaîne de marches mobiles entre les stations, chaque marche de la chaîne présentant une surface de support horizontale lors d'un mouvement ascendant sur laquelle un skieur peut prendre place sans devoir enlever ses skis.
Patent CA-1284184-C (CA)
Title: Combined chassis retention and electrical contact arrangement
Inventor: LAUDER JAMES V
IPC: H01M2/10
Filed: 1988-12-08
Granted: 1991-05-14
Abstract: ABSTRACT        A spring clip arrangement is disclosed for a portable battery powered device which provides an efficient chassis retention feature for a slideably removable electrical chassis in unassociated housing. This retention is accomplished without machine screws and to special tools required.  This spring clip arrangement also serves as the electrical contact interface for the associated battery power source insertable in a provided battery compartment.
Patent CA-1327148-C (CA)
Title: Fiber reinforced composites with improved glass transition temperatures
Inventor: JORDAN ROBERT C
IPC: C08G59/24
Filed: 1989-01-06
Granted: 1994-02-22
Abstract: ABSTRACT OF THE DISCLOSURE      A fiber reinforced composite structure having a glass transition temperature greater than 150°C is comprised of:     a)   reinforcing fiber and b)   a curable epoxy resin composition comprising (i)  one or more epoxides having more than one epoxide group per molecule, of which epoxides at least 10 percent by weight is a 9,9-bis[4-(2,3-epoxypropoxy)phenyl]fluorene, all of the fluorene epoxy present being free of ortho substitution; (ii) an effective amount of one or more epoxy curing agents.
Patent CA-1334945-C (CA)
Title: Diagnostic assay for predicting sperm fertilizing potential
Inventor: HODGEN GARY D
IPC: G01N33/567
Filed: 1989-02-22
Granted: 1995-03-28
Abstract: A new diagnostic assay of sperm function has been found for infertility treatment and monitoring programs.  The hemizona assay (HZA) measures tight binding of human spermatozoa to the human hemizona pellucida.
Patent CA-1310130-C (CA)
Title: Graphical method of processing multiple data blocks
Inventor: TORRES ROBERT J
IPC: G06F17/21
Filed: 1989-03-02
Granted: 1992-11-10
Abstract: ABSTRACT OF THE DISCLOSURE           A method of processing multiple noncontiguous data blocks within a document is disclosed.  A graphical pointing device such as a light pen, computer tablet, mouse pointer, or  touch  sensitive  screen  is  utilized  to  designate  an initial location and a final location for a plurality of noncontiguous data blocks within a displayed document or set of documents.  In response to each designation of a final location for a particular data block that data block is temporarily stored for future processing.  In one embodiment of the present invention, the stored data blocks may then be processed utilizing selectable processing commands and the resultant  new  document  may  then  be  displayed  to  the operator.
Patent CA-1304673-C (CA)
Title: Method of forming a plurality of spaced substantially parallel fractures from a deviated well bore
Inventor: AUSTIN CARL E
IPC: E21B43/26
Filed: 1989-03-03
Granted: 1992-07-07
Abstract: Abstract of the Disclosure An improved method of forming a plurality of spaced sub-stantially parallel fractures in a subterranean formation from a deviated well bore penetrating the formation is pro-vided.  The method comprises drilling a substantially ver-tical well bore into the formation and forming an initial fracture therein by applying hydraulic pressure to the for-mation.  The in situ least principal stress direction in the formation is determined from the initial fracture and a deviated well bore is then drilled from the substantially vertical well bore into the formation at an angle and in a direction substantially parallel to the in situ least prin-cipal stress direction in the formation.  Casing is placed in the deviated well bore, and a plurality of spaced frac-ture initiation points are created therein by forming a set of perforations of predetermined number and size through the casing and into the formation at the location of each of the fracture initiation points.  Hydraulic pressure is applied under predetermined conditions to the sets of perforations at the fracture initiation points simultaneously to thereby extend a plurality of spaced substantially parallel frac-tures in the formation from the deviated well bore.
Patent CA-1313339-C (CA)
Title: Apparatus and method for removing obstructions in bodily organs or cavities
Inventor: ZAKKO SALAM F
IPC: A61B17/22
Filed: 1989-04-10
Granted: 1993-02-02
Abstract: APPARATUS AND METHOD FOR REMOVING OBSTRUCTIONS          IN BODILY ORGANS OR CAVITIES                 ABSTRACT OF THE DISCLOSURE A  fully automatic organ pressure  sensitive  apparatus for dislodging and removing obstructions in bodily  cavities or  organs  by both delivering and removing  fluid  thereto, operable by high rate continuous or intermittent infusion of fluid  solvent  over a set pressure range  to  effect  rapid dissolution   and   removal  of  the obstruction   without complications  to  the  patient.   By  continuous   feedback monitoring  of fluid pressure in the bodily organ or  cavity of interest, the apparatus can constantly vary infusion  and aspiration rates to maintain the set pressure range.  If the pressure  persists  above  or  below  the  set  range,   the apparatus activates a safety feature leading to a period  of maximal  aspiration and cessation of infusion,  followed  by cessation of solvent transfer and triggering of an alarm  to alert the operator.     [UOCZGCIP.C28]                     UC CASE NO. 86-025-2
Patent CA-1307458-C (CA)
Title: Sand consolidation methods
Inventor: FRIEDMAN ROBERT H
IPC: E21B43/24
Filed: 1989-05-24
Granted: 1992-09-15
Abstract: SAND CONSOLIDATION METHODS       (D# 79,016-F) ABSTRACT OF THE DISCLOSURE         Methods are provided for selectively consolidating naturally occurring mineral grains such as sand within a subterranean formation to form a fluid permeable barrier which restrains the movement of sand particles when oil passes through the barrier.  A fluid comprising a polymerizable monomer such as furfuryl alcohol and as a diluent, a polar organic solvent such as methanol and a strong, non-volatile acid catalyst such as sulfuric acid is provided, mixed with steam to form a multiphase or aerosol treating fluid, and injected into the formation to be consolidated.  The well is shut in for sufficient period of time for polymerization to convert the injected fluids into a permeable barrier around the wellbore.
Patent CA-1313690-C (CA)
Title: Voltage and current limiting power supply
Inventor: FOLEY RAYMOND J
IPC: G05F1/569
Filed: 1989-09-08
Granted: 1993-02-16
Abstract: VOLTAGE AND CURRENT LIMITING POWER SUPPLY                  Abstract A circuit for delivering power to a load at a predetermined voltage and current.  The circuit limits the voltage and current available at the load in the event that the load becomes either detached from the circuit or short circuited to facilitate safe operation of the load in an explosive environment such as a paint spray booth.  The current is limited by a constant current source and the voltage is limited either by the maximum output voltage from the constant current source or by a zener barrier circuit.
Patent CA-1315541-C (CA)
Title: Pneumatic steelmaking vessel and method of producing steel
Inventor: BOTTINELLI N EDWARD
IPC: B22D41/005
Filed: 1989-09-27
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE        The invention encompasses a pneumatic steelmaking vessel and a method for the production of steel from hot carbon-bearing metallized raw materials such as direct reduced iron.  The vessel is a refractory-lined ladle, having an eccentric ladle cover with an opening on one side.  Opposite the opening in the ladle cover is at least one downwardly directed oxygen lance or tuyere.  The vessel is mounted on trunnions for rotation about its central axis to a generally horizontal position.  The bottom of the vessel has a porous plug, and a hot metal outlet controlled by a sliding gate closure member or other convenient type closure.  The  vessel is used in connection with a method of steelmaking by serving as the means for transporting molten metal to melting, refining, ladle metallurgy, and teeming operations.
Patent CA-1312629-C (CA)
Inventor: CORDIER GEORGES
IPC: C07C29/136
Filed: 1989-09-28
Granted: 1993-01-12
Abstract: The present invention relates to a process for the industrial preparation of trifluoroethanol by passage of a reaction mixture containing trifluoroacetic acid, water and trifluoroethanol over a percolating fixed bed consisting of a rhodium- or ruthenium-based catalyst.