baber/WOPTO huggingface dataset:
Patent CA-2071161-A1 (CA)
Title: Method for patterning metallo-organic precursor film and method for producing a patterned ceramic film and film products
Inventor: HUNG LIANG-SUN
IPC: C01G1/00
Filed: 1992-06-12
Abstract: METHOD FOR PATTERNING METALLO-ORGANIC PRECURSOR FILM AND METHOD FOR PRODUCING A PATTERNED CERAMIC FILM AND            FILM PRODUCTS          ABSTRACT           A method for patterning precursor film, a product thereof, a method for preparing a patterned ceramic film and a processing workpiece.  The method for patterning precursor film includes the steps of depositing a blocking layer over the precursor film, patterning the overlaid blocking layer to uncover portions of the precursor film, irradiating the patterned blocking layer and uncovered portions of the precursor film with a beam sufficiently energetic to radiation modify the full thickness of unmasked portions of the precursor film and insufficiently energetic to radiation modify portions of the precursor film covered by the blocking layer, and developing the precursor film.  The blocking layer has a lesser thickness than the precursor film, but is sufficiently thick to block an irradiating beam having the minimal energy necessary to radiation modify the full thickness of the precursor layer.
Patent CA-2072563-A1 (CA)
Title: Method of separating haemopoietic progenitor cells
Inventor: FUNDERUD STEINAR
IPC: A61K35/28
Filed: 1990-12-28
Abstract: The invention provides a method of separating haemopoietic progenitor cells (HPC) from within a mixed population of haemopoietic cells, which may contain malignant cells, characterised in that (1) said mixed population is treated with one or more negative selection antibodies reactive with the DP and DQ antigens of the MHC  Class II but not with the monomorphic epitope of the DR antigen on the HPC, said negative selection antibody(s) being bound to magnetic particles before or after binding to said cells and the magnetic particles and attached negative selection antibody and cells being removed to leave a negatively selected population of cells including at least HPC, and (2) HPC and any cells associated therewith are treated with a positive selection antibody reactive with an antigen on said HPC, said antibody being bound to magnetic particles before or after binding to cells carrying said antigen, the magnetic particles and attached cells being separated from other cells by magnetic aggregation and the cells of optionally being liberated from the magnetic particles to leave a positively selected population of cells containing said HPC, steps (1) and (2) being effected in either order so that the said positively selected population of cells is the mixed population treated in step (1) or the said negatively selected population of cells are the cells treated in step (2).
Patent CA-2073971-A1 (CA)
Inventor: HAMILTON DANIEL
IPC: E02D27/48
Filed: 1990-12-28
Abstract: A low cost, easy to install underpinning apparatus (14) for supporting below-grade structural footings such as foundations (10) or the like is provided which makes use of a power installed, load-bearing helix-type screw anchor (16) together with a connecting bracket assembly (18) secured to the foundation (10).  The anchor (16) is screwed into the earth below the foundation (10), leaving the upright end of the an-chor shaft (20) adjacent the foundation (10).  The bracket assembly (18) advantageous-ly includes a foundation-engaging plate (28) with a pair of spaced, outwardly extend-ing wall portions (30, 32) rigidly secured thereto.  An elongated, U-shaped bracket (36) together with a mating retainer (42) are releasably secured to the wall portions (30, 32) and serve to captively retain the upper end of the anchor shaft (20), with the U-bracket (36) having a top crosspiece wall (38) provided with a threaded opening (40) therethrough.  A threaded, force-transmitting bolt (54) screwed into the bracket crosspiece (38) engages the uppermost butt end (22) of the anchor shaft (20) so that the anchor (16) becomes a load-bearing support for the foundation (10).  Rotational torque is imparted to each screw anchor during installations as a force independent of a respective support and the foundation until a predetermined torque value is achieved.  The rotational torque on the screw anchor is then relieved and the dead weight and any live load of the building structure carried by the bracket assembly is transferred to the screw anchor.
Patent CA-2078638-A1 (CA)
Inventor: SASAKI SHIGERU
IPC: G02B7/36
Filed: 1992-09-18
Abstract: A distance data is obtained from an object to a lens by obtaining an image of the object by an image input unit for forming an image of the object through the lens on an image receiving plane. The present method inputs two observed images Is and Is' with different blurs from the image input unit by making a position of the lens, a position of the image receiving plane with regard to the article different by a minute distance .DELTA.z and performs a filtering process by applying filter to the two input observed images Is and Is', thereby providing two output images Fs and Fs' and calculates the distance a up to the object by using two output images Fs and Fs' obtained by the filtering process based on the relation between the two output images Fs and Fs' and radius s of the blur and the distance a from the lens to the object.
Patent CA-2078866-A1 (CA)
Inventor: HALLMAN EDWARD H
IPC: H04M11/06
Filed: 1991-03-14
Abstract: Method for embedding additional information (e.g. a password function) in a handshake of communicating modems is provided. An auxiliary packet (20b) containing the additional information is placed in the handshake sequence of an originating modem in such a manner that it cannot be confused by the receiving modem with other signals which are required to be sent by the originating modem in the modem handshake. The answering modem looks for the auxiliary packet (20b), and if the auxiliary packet (20b) is not received, or if the information in the auxiliary packet (20b) is not sufficient to establish authorization, the answering modem causes the call to be dropped. In V.32 type modems, the auxiliary packet (20b) is placed by the originating modem somewhere in the training sequence (TRN) after the required twelve hundred eighty symbol intervals, and before the R2 sequence, and the auxiliary packet (20b) is generated in such a manner that it cannot be confused with the R2 sequence. In order to guarantee that the auxiliary packet (20b) is discernible and that no confusion with other signals is possible, the auxiliary packet (20b) is comprised of two multiplexed signals; an information signal at 2400 bit/second rate which includes a burst flag (50b) and an HDLC formatted start flag (52b), password (70b), check sum (75b), and stop flag (78b); and a 2400 bit/second R2 prevention signal which is coded to be compatible with the burst flag (50b) and to guarantee that regardless of the HDLC formatted signal, the composite auxiliary packet (20b) cannot constitute an R2 sequence.
Patent CA-2079393-A1 (CA)
Title: Collapsible anchor having releasable flukes
Inventor: SOULES JACK ARBUTHNOTT
IPC: B63B21/24
Filed: 1992-09-29
Abstract: COLLAPSIBLE ANCHOR HAVING RELEASABLE FLUKES     ABSTRACT OF THE DISCLOSURE A simple, easily affordable and portable, yet rugged and reliable, collapsible anchor is disclosed for use with small water craft, particularly those susceptible to damage by sharp edges or protuberances of a conventional non-collapsible anchor stowed aboard. When snagged, the anchor is self-tripped by a force exerted in a direction upstream from where the craft was anchored. The force trips a release mechanism which allows a pair of flukes to rotate in an "A"-shaped spring yoke in which they are held, and unsnag the anchor. The flukes are nonrotatably disposed on a fluke shaft which is journalled in the lower terminal portions of the yoke's two spring arms. The upper terminal portions (apex) of the yoke are held together by a fulcrum pivot (shoulder bolt) means. The release mechanism comprises, a spreader bar having a clevis in its upper terminal portion and a release pin in its lower terminal portion, the release pin being biased against the spring arms; and, a line lever having a through-bore in its lower terminal portion and a cam end, the anchor line being attached to the other end. The line lever is pivotable about the fulcrum pivot member, and held in the clevis so that the spreader bar is rotatably disposed on the same fulcrum pivot.
Patent CA-2079405-A1 (CA)
Title: Microstrainer filter deck panel
Inventor: PIETZSCH KURT E
IPC: B07B1/46
Filed: 1992-09-29
Abstract: 02288-238 AGS:jy ABSTRACT            The present  invention relates  to a screening device with a screening cartridge that consists of a cartridge frame and a flexible web of filter material. that is stretched in the frame. In order to create a screening device in which both the screening cartridges as a whole as well as the filter cloth or the webs of filter material alone can be replaced very quickly and simply, the present invention proposes that the frame incorporate a groove that runs parallel to its periphery, the web of filter material being installed in the groove and held in place by means of  a  cord of  elastic rubber  material  that  is  additionally installed in the groove.
Patent CA-2080223-A1 (CA)
Inventor: DEAN THOMAS R
IPC: C07D513/04
Filed: 1991-04-03
Abstract: Sulfonamides and pharmaceutical compositions containing the compounds useful in controlling intraocular pressure are disclosed. Methods for controlling intraocular pressure through administration of the compositions are also disclosed.
Patent CA-2080697-A1 (CA)
Title: Process for preparation of resorcinol
Inventor: SUMNER CHARLES E JR
IPC: C07C41/40
Filed: 1991-04-03
Abstract: A process for preparation of resorcinol bis(hydroxyethyl)ether by first contacting resorcinol with ethylene carbonate in the presence of water and an alkali metal carbonate and then adding a solution of water and an alkali metal hydroxide and then recovering the resorcinol bis(hydroxyethyl)ether by crystallization.
Patent CA-2084642-A1 (CA)
Inventor: DAVIS JAMES A
IPC: C08K5/01
Filed: 1992-12-04
Abstract: ABSTRACT OF THE DISCLOSURE   A heat scamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 50 to 90 parts by weight of polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend. A method for covering a roof comprises the steps of applying layers of sheet material as described above to the roof being covered; overlapping adjacent edges of the layers; heating the overlapped areas to slightly above the softening point of the sheet material and seaming the overlapped areas using heat and sufficient pressure to provide an acceptable seam, the composition of matter having sufficient self-adhesion without the use of an adhesive.
Patent CA-2085958-A1 (CA)
Title: End-capped polyalkylene glycols
Inventor: CRACKNELL ROBERT B
IPC: C10M111/04
Filed: 1992-12-21
Abstract: Case 7800(2) ABSTRACT OF THE DISCLOSURE                  END-CAPPED POLYALKYLENE GLYCOLS           A polyether having the formula RX[(CxH2xO)n(cyH2yO)pZ]m                (I) wherein:      R is either an alkyl or alkyl phenyl group having from 7 to 30 carbon atoms, X is selected from O, S or N; x is an integer from 2 to 4; y is an integer from 6 to 30; Z is a hydrocarbyl group containing from 1 to 30 carbon atoms; m is 1 when X is O or S or m is 2 when X is N; n and p are such that the polether contains between 1 and 40% by weight of (CyH2yO) units and between 40 and 80% by weight of (CxH2xO) units; and the molecular weight of the polyrther is between 500 and 3,500.      Lubricating oil compositions comprising such polyethers are disclosed.      A method of preparing the polyethers is disclosed and comprises preparing a H-capped polyether, preparing an alkali-metal salt thereof and reacting said salt with an alkylating agent.
Patent CA-2086181-A1 (CA)
IPC: F22D5/26
Filed: 1992-12-23
Abstract: An improved feedwater control for drum type steam generators is provided in order to gain improved drum level control for drum type steam generators which are subjected to great load changes at high rates of change.  The control system accounts for changes in the mass inventory within the circulation loop by monitoring and  adjusting  to  changes  in  steam  flow  and  drum pressure.   Thus, during load changes, the drum level will remain constant.
Patent CA-2094590-A1 (CA)
Inventor: DICKSON CHARLES T
IPC: C10G25/03
Filed: 1991-06-04
Abstract: A process for purifying linear paraffins in which a hydrocarbon stream containing linear paraffins contaminated with aro-matics, sulfur-, nitrogen-, and oxygen-containing compounds, and color bodies, but essentially free of olefins, is contacted with a solid adsorbent such as an NaX zeolite or zeolite MgY. After adsorption the adsorbent is desorbed with an alkyl-substituted aro-matic desorbent, such as toluene. The initial effluent from the adsorb cycle, which will contain a high concentration of residual desorbent, is recycled to a desorbent recovery system. The level of desorbent in the adsorber effluent is monitored on a real time basis until the desorbent level of the adsorber effluent declines from a plateau level, i.e. a 100 % plateau level, that correlates with the level of impurities particularly the aromatic impurities in the feed, which is an indication of aromatics breakthrough, thereby signaling the need to switch the adsorbent beds.
Patent CA-2094874-A1 (CA)
Title: Non-antibacterial tetracycline compositons possessing antiplaque properties
Inventor: MCNAMARA THOMAS F
IPC: A61K31/65
Filed: 1993-04-26
Abstract: Methods of inhibiting plaque formation and caries on mammalian tooth surfaces are disclosed. The methods include contacting the tooth surfaces with an effective amount of a non-antibacterial tetracycline. In preferred embodiments, the tetracyclines are included in various oral hygiene products such as dentifrices, lozenges, chewing gums and the like to contact the tooth surfaces.
Patent CA-2097949-A1 (CA)
Title: Method for assessing the fertilization potential of mammalian spermatozoa and for inducing the acrosome reaction
Inventor: DI VIRGILIO FRANCESCO
IPC: G01N33/52
Filed: 1993-06-08
Abstract: ABSTRACT         A method for assessing the fertilization potential of mammalian spermatozoa comprises the steps of incubating a sperm sample with extracellular ATP, determining the level of acrosine secretion from the sperm and comparing with the level of acrosine secretion from a control sample of sperm not treated with ATP.  A kit for performing the assessment of fertilization potential includes sterile culture medium, sterile, preferably lyophilized ATP, sterile culture tubes and acrosine substrate.  A method of inducing the acrosome reaction in sperm taken from an infertile mammal also comprises the incubation of the sperm with extracellular ATP in appropriate culture medium.  Sperm treated in this manner may be used in conventional artificial insemination and in vitro fertilization procedures.
Patent CA-2098272-A1 (CA)
Title: Device, system and method for drilling and completing a lateral well
Inventor: HAYES LEW
IPC: E21B7/06
Filed: 1993-06-11
Abstract: A method and system for lateral drilling with respect to a main well which is cased by a casing string.      At least a part of the casing string provides a lateral opening adapted to enable drilling of a lateral well. A guiding device is positioned at a part of the casing string in front of the lateral opening and the guiding device is controlled from the surface of the main well. A lateral casing string equips the lateral well and provided a sub for connecting the lateral casing string to the main string in the main well.
Patent CA-2098565-A1 (CA)
Title: A resin composition and a molded article utilizing it
Inventor: TAGOSHI HIROTAKA
IPC: C08L71/02
Filed: 1992-11-02
Abstract: ABSTRACT A thermally reversible crosslinked resin composition comprising a specific ethylenic copolymer, a specific polyhydric alcohol and a specific reaction promoter and a molded article produced by utilizing the resin composition are disclosed. Because the resin composition and the molded article have a high reaction rate of dissociation of the crosslinking during heating and a high reaction rate of formation of the crosslinking during cooling, they can be utilized for various applications, such as melt molding and the like, as the the thermally reversible crosslinked resin composition and the thermally reversible crosslinked molded article which are substantially valuable for commercial application.
Patent CA-2099061-A1 (CA)
Title: Heteroarylnaphthalenes as inhibitors of leukotriene biosynthesis
Inventor: GIRARD YVES
IPC: A61K31/425
Filed: 1993-06-23
Abstract: Compounds having the formula I:      are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, glomerular nephritis, hepatitis, endotoxemia, uveitis and allograft rejection and in preventing the formation of atherosclerotic plaques.
Patent CA-2101692-A1 (CA)
Title: Scale having variable thickness document feed belt
Inventor: DEBARBER CHRISTOPHER
IPC: G01G19/00
Filed: 1993-07-30
Abstract: SCALE HAVING VARIABLE THICKNESS DOCUMENT FEED BELT                 Abstract of the Disclosure A transport apparatus for a weighing module includes a scale. which has a deck connected to a scale base for weighing an object placed on the deck.  The deck has slots for accommodating dual thickness belts which are arranged below the deck to be in substantial registration with the slots.  The belts are positioned with respect to the slot such that in a home position a thinner section of the belt does not protrude through the slot whereby the transport means does not interfere with weighing of the object on the deck.  When the belts are actuated, the dual thickness belts move so that a thicker section of each belt protrudes through the slot as the belts are being driven to thereby lift the object from the deck onto the thicker section of the belt to transport the object on the belt.  In a particular embodiment, the thicker section comprises lugs which include initial tapered transition lugs to assure lifting of the object.
Patent CA-2101731-A1 (CA)
Inventor: WHITE FRED E
IPC: F16L3/233
Filed: 1993-07-30
Abstract: Abstract A wire retention clip for holding a wire or bundle of wires.  The wire clip includes a retaining arm member and locking means attached to a base plate in a spaced relationship to each other.  The retaining arm member includes a substantially tangentially extending press pad that extends in a direction towards the free end of the retaining arm, to ease the pressing of the free end of the retaining arm into the locked position and to cover the release lever of the locking mechanism to prevent inadvertent release of the retaining arm.  The retaining arm member is further defined by its ends both tapering into a narrower middle section.
Patent CA-2107563-A1 (CA)
Title: Double containment pipe joint assembly
Inventor: ZIU CHRISTOPHER G
IPC: F16L39/00
Filed: 1992-04-03
Abstract: A double containment pipe joint assembly (40) is provided with an inner pipe and an outer or containment pipe secured to the joint assembly in concentric relation. The pipe joint assembly includes a first and a second fitting (20, 30) coupled together to present end surfaces which can be secured to a length of a primary (inner) and containment (outer) pipe at intervals along the pipelinewherein sections of the pipeline can be removed and repaired without the necessity of removing the whole pipeline, while anchoring the pipes together at spaced locations along the pipeline. The arrangement further allows the pipes to be formed from different materials compatible with the pipe fittings and precludes the necessity of providing flanges on the inner and containment pipes so they can be secured in concentric relationship, lessening the chance for failure.
Patent CA-2108778-A1 (CA)
Inventor: HERPEL CARSTEN
IPC: H04N19/98
Filed: 1992-04-14
Abstract: A hybrid Discrete Cosine Transform (DCT) coder processes blocks of (e.g., 8X8) pixels from interlaced or progressive scanned image signals. Processing of image lines by the coder is modified in the presence of image motion to avoid switching between 8X8 and 2X(4X8) transformations. For motion, the lines of two vertically superimposed image blocks are rearranged to produce first and second modified blocks.      The modified first block contains pixels from lines in a first field, and the modified second block contains pixels from lines in an associated adjacent second field.
Patent CA-2110271-A1 (CA)
Inventor: BLASE GUENTER
IPC: F16L3/01
Filed: 1993-03-30
Abstract: In a power transmission chain, each link of which displays two side walls and a stabilising element joining these at their lower longitudinal edges, as well as a cover which can be snapped onto the upper longitudinal edges, where consecutive links are joined in pivoting fashion and the covers can be fixed on the upper longitudinal edges of the side walls in a detachable fashion,  the covers are connected via flat, flexible connecting straps located in sliding fashion in corresponding sliding chambers in the covers. A power transmission chain of this kind can be manufactured with very small dimensions, has adequate assembly strength and can be handled conveniently and safely.
Patent CA-2113288-A1 (CA)
Title: Process for producing aromatic amide compounds
Inventor: TAKAMINE KAN
IPC: C07C235/24
Filed: 1994-01-12
Abstract: Abstract of the disclosure:   There is disclosed a process for producing an aromatic amide compound of the general formula (4), including the steps of subjecting an o-nitrophenol compound of the general formula (1) to catalytic reduction in acetone or an aromatic hydrocarbon solvent under the presence of a nickel catalyst to give an o-aminophenol compound of the general formula (2); and (b) subjecting the o-aminophenol compound of the general formula (2) to condensation with an acid chloride compound having a sulfur content of 0.5% or less, based on the weight of the acid chloride compound, of the general formula (3) in acetone or an aromatic hydrocarbon solvent under an atmosphere of an inert gas having an oxygen concentration of 1% or less. The acid chloride compound having a sulfur content of 0.5% or less, based on the weight of the acid chloride compound, of the general formula (3) may be obtained by allowing a carboxylic acid compound of the general formula (5) to react with thionyl chloride and by concentrating the reaction mixture. Also disclosed is another process for producing an aromatic amide compound of the general formula (4), including the step of subjecting an o-aminophenol hydrochloride salt of the general formula (6) to condensation with an acid chloride compound having a sulfur content of 0.8% or less, based on the weight of the acid chloride compound, of the general formula (3) in an inert solvent.