baber/WOPTO huggingface dataset:
Patent CA-2007314-A1 (CA)
Inventor: JANSSEN JEFFREY R
IPC: C09J7/02
Filed: 1990-01-08
Abstract: of the Invention The present invention provides a self-adherent, three-dimensional, article comprising one or more members, each member of the article including a radiation-cured pressure-sensitive adhesive body, each body having an top surface and a bonding surface, and a carrier film releasably adhered to the bonding surface of each member. The article may comprise one continuous member several interconnected members. Each member may likewise have a body comprising a single layer of radiation-curable adhesive or several layers of radiation-curable material. The simplest articles of the invention are single-layered continuous items, e.g., adhesive gaskets, having a pressure-sensitive adhesive body. More complex articles may include several members. Such articles may consist of members provided together in a logical sequence such as a word, e.g., "T-U-R-B-O", wherein each letter is considered a member.
Patent CA-2010901-A1 (CA)
Inventor: HIMES RONALD E
IPC: C09K8/66
Filed: 1990-02-26
Abstract: A method of substantially preventing the adsorption of polysaccharides or removing polysaccharides from clay surfaces in subterranean formations which are present as a result of contact by gravel packing, fracturing or other treatment fluids, by contacting the formation with a treatment fluid containing at least one member selected from the group consisting of tetraalkylammonium halides wherein the alkyl radical is selected from methyl, ethyl, propyl and butyl radicals and trimethylammonium halides present in an amount sufficient to substantially remove any polysaccharides adsorbed by said clays whereby the permeability of the formation is substantially maintained.
Patent CA-2011843-A1 (CA)
Title: Floor cross-bridge
Inventor: CARTER STANLEY
IPC: E04B5/00
Filed: 1990-03-09
Abstract: ABSTRACT           The present invention provides a prefabricated cross-bridge for retarding movement and twisting between adjacent floor joists in a wooden floor which comprises a metal strip having a main elongated portion for extending at an angle to the horizontal between adjacent joists and integral short end portions disposed at an angle to the main portion for attachment thereof between said joists said main portion preferably having at least one elongated longitudinally extending depression therein provided by deformation of the main portion of said strip.  The invention thus provides a prefabricated cross-bridge which is light weight and easy to stack thus allowing the carpenter to carry more of the cross-bridges and install them far more quickly than the more awkward aforesaid wooden cross-bridging.  In addition, the cross bridge of the present invention does not shrink as does the conventional wooden cross-bridging and thus provides longer term strength and stability.
Patent CA-2014148-A1 (CA)
Title: Driving method, electric power generating method, and cold or hot water obtaining method using refrigerant gas
Inventor: MATSUURA TAKAAKI
IPC: F02C1/02
Filed: 1990-04-09
Abstract: ABSTRACT OF THE DISCLOSURE     A driving method which comprises causing refrigerant gas contained under a high pressure in a tank to flow into pipes provided with check valves, passing the refrigerant gas into a prime mover, introducing the refrigerant gas discharged under a low pressure from the prime mover into refrigerant regulators, wherein the refrigerant gas, while being held at a fixed volume is heated to  an  elevated  pressure which  is a  little  higher  than  the aforementioned high pressure, returning the refrigerant gas to the tank  while  at  an  elevated  pressure,  thus  circulating  the refrigerant gas from the tank and back to the tank through the prime mover and refrigerant regulators, and continuously driving the prime mover   The method additionally comprises connecting an electric generator to the prime mover for generating electric power which may be used for a variety of purposes, including heating and/or  cooling  of  water.    Furthermore,  the  invention  may additionally comprise introducing the refrigerant gas into an evaporator, wherein water is passed through the evaporator to carry out a heat exchange between the water and the refrigerant gas for cooling the water.
Patent CA-2015077-A1 (CA)
Inventor: HOLLENBERG CORNELIUS P
IPC: C07K14/535
Filed: 1990-04-20
Abstract: The present invention relates to a yeast cell of the genus Schwanniomyces wherein said yeast cell contains at least one expression cassette comprising:   a) a first DNA sequence serving as a regulon, b) optionally a second DNA sequence coding for a signal peptide, c) a third DNA sequence coding for a foreign protein, and d) optionally a fourth DNA sequence serving as a terminator.    In a preferred embodiment of the invention, the first, second and/or fourth DNA sequences are derived from genes coding for amylolytic enzymes of yeast cells at the genus Schwanniomyces. The use of these functional sequences in an expression cassette provides efficient expression of foreign genes in yeast cells according to the present invention and, furthermore, provides a system for efficient secretion of the expression product into the medium.
Patent CA-2017211-A1 (CA)
Title: Methods for tagging and tracing materials with nucleic acids
Inventor: DOLLINGER GAVIN D
IPC: C12Q1/68
Filed: 1990-05-18
Abstract: Methods for tagging and tracing materials using nucleic acids as taggants allow for the identification of diverse materials. The process of tagging involves altering a substance in a manner that allows for the subsequent identification of the substance by detecting the alteration. The alteration disclosed herein involves nucleic acids. The methods are especially useful when the nucleic acid taggant is amplified prior to the indentification step.
Patent CA-2017943-A1 (CA)
Inventor: GRIEPENTROG JOACHIM
IPC: F24F13/08
Filed: 1990-05-31
Abstract: An air egress has a perforated shell (1) and a base (3) provided with closeable air passage apertures (3a). Within the shell (1), one or more shutter rings (5 or 18a and 18b) are arranged to be vertically displaceable or twistable or displaceable and twistable. 
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Patent CA-2020112-A1 (CA)
Inventor: COTE JEAN-MARIE
IPC: A01G23/095
Filed: 1990-06-28
Abstract: An improved boom construction on a tree delimber.  The boom construction has a boom support and a boom assembly pivotally connected to the boom support.   Locking means are provided for locking the boom assembly to the boom support in a working position of the delimber.   The locking means are movable to an unlocked position allowing the boom assembly to pivot relative to the boom support in setting the delimber up in a travel position.  Moving means are provided for both moving the locking means between locked and unlocked positions and for pivoting the boom assembly relative to the boom support.   Means are also provided for preventing lateral movement between the boom assembly and the boom support when in the working position.
Patent CA-2021089-A1 (CA)
Inventor: JOHNSON RONALD M
IPC: H01H37/12
Filed: 1990-07-12
Abstract: PATENT - Docket 9D-HR-17411 - Johnson CONTROL ASSEMBLY FOR ADJUSTING THERMOSTAT SETTING                        ABSTRACT A control assembly for a household refrigerator having a mullion partition separating the freezer compartment and the fresh food compartment with a front face and a bottom panel forming the top of the fresh food compartment.  There is a control bracket mounted on the bottom panel at the rear of the mullion partition and this bracket has a circular aperture with two radial notches.  A thermostat having a rotatable stem for adjusting the thermostat setting is mounted on the control bracket.  There is a rotatable hub member having a circular central portion with radial lugs slightly smaller than the circular aperture and radial notches of the control bracket.  The portion of the central portion that projects through the circular aperture and radial notches is rotated to mount the hub member on the control bracket.  There is an aperture in the center of the circular central portion to receive the rotatable stem of the thermostat and it is dimensioned to rotate the stem in unison with rotation of the hub member.  A lever arm extends radially outward from the central portion of the hub member and there is a push-pull device located inside the mullion partition having one end secured to the lever arm and the opposite end is a manual actuator located at the front of the mullion partition whereby movement of the actuator rotates the hub member which rotates the thermostat stem to adjust the thermostat setting.
Patent CA-2022629-A1 (CA)
Title: Fiber structures with absorbency gradient and process for their production
Inventor: GUPTA VIJAI P
IPC: D04H1/70
Filed: 1990-08-03
Abstract: ABSTRACT         Superabsorbent non-wovens prepared by air-laying superabsorbent staple fibers along with other fibers, differing in density by at least 0.2 g/cc from that of the superabsorbent fiber.
Patent CA-2023137-A1 (CA)
Inventor: HORITA YOSHIYUKI
IPC: A44B19/42
Filed: 1990-08-10
Abstract: A method of and an apparatus for metering an elongate stringer chain to be finished into slide fasteners of different lengths, the metering being based on an element pitch P derived from dividing a given metering length L by the number of coupling elements thereon.  The stringer chain is held substantially in tensionless suspension while it is being metered to achieve a maximum of metering accuracy.
Patent CA-2024463-A1 (CA)
Title: Chromium-containing complex polymerisation catalyst
Inventor: DAWKINS GORDON M
IPC: C08F4/00
Filed: 1990-08-31
Abstract: Case7344(2) ABSTRACT OF THE DISCLOSURE      CHROMIUM-CONTAINING COMPLEX POLYMERISATION CATALYST    The present invention relates to an olefin polymerization obtainable by depositing on a dry inorganic oxide support at least one mononuclear chromium complex, which is representable by the general formula:       wherein:     -    the cyclopentadienyl ligand is substituted with 4 or 5 hydrocarbyl groups (R1-R5) containing 1 to 3 carbon atoms, and -    L is one or more hydrocarbyl ligands which are sufficiently reactive to enable the complex to react with the inorganic oxide without thermal activation. The catalyst can be used without thermal activation for polymerizing olefins, particularly ethylene optionally with C3-8 alpha-olefins.  It produces polyolefins having broad molecular weight distribution.
Patent CA-2027134-A1 (CA)
Title: Damped extended-motion strut
Inventor: THORN RICHARD P
IPC: F16F15/02
Filed: 1990-10-09
Abstract: A strut assembly for connecting and damping motion between relatively movable objects. The strut assembly includes a casing containing a pair of movable connecting members which cooperate with ribbed slide elements and elastomeric layers in the casing to damp motion by inducing hysteresis in the elastomeric layers and creating friction.
Patent CA-2028900-A1 (CA)
Title: Method of adapting a pump having multiple co-planar reciprocating pistons disposed in cylinders radially spaced around a central shaft
Inventor: DUBBELDAM ARTHUR J
IPC: F04B1/00
Filed: 1990-10-30
Abstract: ABSTRACT OF THE DISCLOSURE     A method of adapting a pump having multiple co-planar reciprocating pistons disposed in cylinders radially spaced around a central shaft having a cam and operating linkages between the cam and each of the radially disposed pistons, to discharge liquids at pressures exceeding 20,000 pounds per square inch. The method consists of the step of providing a cam having three distinct contour sections.  A first section is shaped so as to cause the piston to compress the fluid in its  cylinder  to a pre-selected discharge pressure thereby permitting  the  piston  to  begin  discharge  of  fluid simultaneously with the completion of the discharge stroke of the radially adjacent piston.  A second section is shaped so as to provide a constant piston velocity during the discharge stroke.   A third section is shaped so as  to provide for ingress  of  fluids  in  preparation  for  the  next  discharge stroke.
Patent CA-2030884-A1 (CA)
Title: Plate and cell holder
Inventor: DAVIS STEVEN S
IPC: B01D25/00
Filed: 1990-11-26
Abstract: PLATE AND CELL HOLDER          Steven S. Davis ABSTRACT OF THE DI DISCLOSURE     A filter plate press or an electrolyzer cell has a series of filter plates or cell frames, respectively, which are moved as a stack against a press or cell headpiece by a follower moved by one or more rodded cylinders mounted on a fixed bracket.  Scissors mechanisms extending on each side of the press/cell holder and between the bracket and follower assure precise parallel movement of the follower with respect to the headpiece.  To accommodate any cumulative errors in the stack dimensions the scissor mechanisms are disengageable upon closure of the press/cell holder so that the follower has freedom to match the abutting surface of the plate/cell frame stack and thus evenly seal the abutting peripheral edges of the plates/cell frames.  A pair of plate pawl-containing carriages mounted on a pair of synchronized lead screws extending parallel to a pair of plate/cell frame guide rails on the press are provided to assure simultaneous pick-up of opposed handles of each plate/cell frame being moved for cake discharge or plate/cell frame washing.
Patent CA-2031699-A1 (CA)
Inventor: CUMMINGS WELDON C
IPC: C08F10/00
Filed: 1990-12-06
Abstract: A method for inhibiting polymer build-up in a heat exchanger during the gas phase polymerization of alpha-olefins which comprises introducing upstream of the heat exchanger para ethyl ethoxybenzoate in an amount sufficient to inhibit polymer build-up.
Patent CA-2032858-A1 (CA)
Title: High Pressure Coupling and Apparatus for Installing Same
Inventor: OETIKER HANS
IPC: F16L33/20
Filed: 1990-12-20
Abstract: A high pressure coupling for hose-like objects in which the nipple structure includes a main portion, a connecting nipple portion extending from the main portion in one direction and a nipple portion extending from the main portion in the opposite direction.  A sleeve-like member made from tubular stock is adapted to be securely connected to the nipple structure by crimping, flanging or the like.  The nipple portion includes outwardly projecting, rounded-off ribs cooperating with rounded-off grooves in the sleeve-like member so that the hose inserted between the nipple portion and the sleeve-like member is held securely in position after the nipple portion is internally expanded with subsequent reduction of the cylindrical surface of the sleeve-like member.  Both the nipple structure as well as the sleeve-like member are made from appropriate stock machined accurately to the required dimensions.  Sharp edges provided in the nipple main portion will anchor themselves securely in the crimped or flanged-over end of the sleeve-like member to assure a secure fastening between these two parts.  A ram-actuated machine for installing the coupling of this invention includes a frame structure which supports a die assembly as well as guide columns slidingly supporting a ram cap assembly.  A ram head assembly to which a mandrel carrying one or more expanding members is connected, is adapted to be reciprocated by the hydraulic ram mechanism with the parts so arranged and constructed that initially the expanding member or members will expand the nipple portion during downward movement of the ram head mandrel assembly.  The internal expansion of the nipple portion is completed when the ram head assembly comes to rest on the ram cap assembly, itself resting on the main nipple portion.  Further downward movement of the ram head assembly will cause the sleeve-like member to be forced through the reducing die by way of the ram cap assembly and the main nipple portion to which the sleeve-like member is securely connected.
Patent CA-2032979-A1 (CA)
Title: Copolymers from polyalkylene oxides containing a maleate reactive double bond and vinyl acetate
Inventor: DAVIS PAULS
IPC: C08F222/20
Filed: 1990-12-21
Abstract: Abstract of the Disclosure A copolymer based on vinyl acetate and polyalkylene oxide(s) containing a maleate reactive double bond.
Patent CA-2033109-A1 (CA)
Inventor: AKEMI HITOSHI
IPC: A61L15/58
Filed: 1990-12-24
Abstract: An acrylic gel material and acrylic gel preparation are disclosed, which acrylic gel material comprises a substrate having on one surface thereof a crosslinked gel layer formed by crosslinking a composition comprising an acrylate polymer and a liquid ingredient compatible with the acrylate polymer.
Patent CA-2033161-A1 (CA)
Title: Vascular access system for extracorporeal treatment of blood
Inventor: LOITERMAN DAVID A
IPC: A61M37/00
Filed: 1990-05-11
Abstract: Disclosed are implantable, vascular access ports and vascular access systems including such ports. These ports include a biocompatible housing having at least one internal open-faced chamber extending along a reference axis, and defined by a concave sidewall and a bottom wall. The concave sidewall is concave in the direction of the axis and forms a lateral sidewall for the chamber. The port further includes a septum of biocompatible, self-resealing, penetrable material affixed to the housing and spanning the periphery of the open face of the chamber. A cannula is attached at a first end to the housing and extends laterally from that end. Its second end is adapted to receive a catheter. The cannula further includes internal walls defining a channel extending from the first end, along a channel axis from a point on the lateral boundary of, and in communication with, the chamber to the second end.
Patent CA-2034383-A1 (CA)
Title: Releasable rod lock
Inventor: KHO DICK T
IPC: A45C5/14
Filed: 1991-01-17
Abstract: ABSTRACT OF THE DISCLOSURE            A releasable rod lock has a support member with a slot and a pivoting locking arm with a first finger which is cammed out of blocking relation with the opening of the slot when a rod is inserted into the slot.  Continued insertion of the rod results in the rod contacting and bending a resilient second finger on the locking arm which causes the locking arm to rotate so that the first finger returns to a blocking relation with the opening of the slot thereby locking the rod in the slot.
Patent CA-2034686-A1 (CA)
Inventor: HEHL KARL
IPC: B01D35/18
Filed: 1991-01-22
Abstract: Appts. for cooling the oil in a hydraulic drive unit of a plastic injection moulding machine, uses water and for cleansing the oil by filtration, includes two coaxial guide tubes for the oil, at least one cooling tube in an annular chamber between the guide tubes, a filter insert and a tank chamber. The arrangement has a number of different cooling chambers, and connection blocks are used to connect onto the tubes. Two or more cooler filter units are located so that the connection blocks are between them.
Patent CA-2036038-A1 (CA)
Title: Hot-melt silicone pressure sensitive adhesive composition and related methods and articles
Inventor: SWEET RANDALL P
IPC: C09J183/04
Filed: 1991-02-08
Abstract: Hot-melt silicone pressure sensitive adhesive composition, methods of using the composition, article made using the composition and methods of making articles using the composition.  The hot-melt silicone pressure sensitive adhesive composition includes a mixture of (i) a silicone resin, (ii) a silicone fluid and (iii) from about 0.5 to about 10 weight percent, based on the total weight of the silicone resin and the silicone fluid, of a non-flammable hydrocarbon having a weight-average molecular weight of from about 300 to about 1500 as measured by gel permeation chromatography calibrated with narrow distribution polydimethylsiloxane standards.
Patent CA-2036868-A1 (CA)
Title: Non-moire shielded window
Inventor: LUH ELLICE Y
IPC: H04N5/72
Filed: 1991-02-21
Abstract: ABSTRACT OF THE DISCLOSURE     An EMI/RFI shielded substrate, preferably a window or CRT screen is disclosed.  The conductive pattern is formed of a series of randomly distributed vertices interconnected with linear and/or curvilinear elements.  The pattern is formed by moving the vertices of a normal rectangular grid from their established x,y coordinates to new x',y' coordinates which are a small distance from the x,y coordinates at an angle, .alpha. , which is from 0° to 360°.  Preferably, the vertices are displaced by an increment that is 50% or less of the distance between the vertices of the x,y coordinate pattern.
Patent CA-2037682-A1 (CA)
Title: Linear tracking means for locating, speed and lenght measuring in high lenght flexible article
Inventor: MARCOZ RENE
IPC: G01B7/04
Filed: 1991-03-06
Abstract: Linear identification means, characterised in that it consists of concealed identifications such as (14a) (14b), embedded in the thickness of the wall of a flexible article of long length, such as the flexible pipe (hose) (4), which is composite and of prismatic or cylindrical shape, in order to create, during the reading by suitable sensors, a perturbation of the dynamic magnetic field detected. 
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Patent CA-2037842-A1 (CA)
Inventor: SEAMANS JAMES D
IPC: C10G45/04
Filed: 1991-03-08
Abstract: An improved method of presulfiding a hydrotreating or hydrocracking catalyst which minimizes sulfur stripping upon start-up of a hydrotreating or hydrocracking reactor utilizing such a catalyst. The method comprises the steps of contacting a hydrotreating or hydrocracking catalyst with elemental sulfur at a temperature below the melting point of sulfur, thereby forming a sulfur-catalyst mix-ture, and heating the sulfur-catalyst mixture to a temper-ature above the melting point of sulfur. Preferably, the sulfur-catalyst mixture is first mixed with at least one member selected from the group consisting of high boiling oils and hydrocarbon solvents to form a prewet mixture prior to heating at a temperature above the melting point of sulfur. Tail gas treating catalysts are also presulfided by these methods.
Patent CA-2039603-A1 (CA)
Inventor: CARLSON LLOYD P
IPC: B41M1/02
Filed: 1991-04-02
Abstract: ABSTRACT           The liners of corrugated papers board sheets are printed by a single pass though offset printing presses to obtain printed sheets ready for use.
Patent CA-2039793-A1 (CA)
Title: Apparatus for conditioning a signal parameter
Inventor: CANFIELD BARTH A
IPC: H03G3/20
Filed: 1991-04-04
Abstract: RCA 86,035 Abstract of the Disclosure Apparatus for controlling the time constant of a signal includes an up/down counter for counting pulses of a clock signal. The count value is utilized as output signal. The output signal is compared with the input signal to provide a first control signal determinative of whether the counter counts up or down. The output signal is compared with the input signal offset by a constant value to provide a signal which is ORed with the first control signal, and the ORed signal is utilized to enable/disable the counter. Applying a constant offset value to the input signal to be compared precludes the system from alternately counting up and down by one unit value during intervals of relatively constant amplitude input signals.
Patent CA-2040086-A1 (CA)
Title: Novel 2,9-disubstituted-4h-pyrido[1,2-a]pyrimidin-4-ones
Inventor: KENNIS LUDO E J
IPC: A61K31/519
Filed: 1991-04-09
Abstract: Novel 2,9-disubstituted-4H-pyrido[1,2-a]pyrimidin-4-ones having the formula   the pharmaceutically acceptable acid addition salts thereof, and the stereochemically isomeric forms thereof, wherein Alk represents C1-4alkanediyl, D is a bicyclic heterocycle of formula   wherein R1 represents C1-4alkyl, hydroxyC1-4alkyl, carboxaldehyde, carboxyl, C1-10alkylcarbonyloxyC1-4alkyl; each R2 represents hydrogen or C1-4alkyl;      R3 represents C1-4alkyl, hydroxyC1-4alkyl or methyl substituted with phenyl, 5-methyl-2-furanyl or 3-pyridinyl; and R4 represents C1-3alkyl, phenyl, 5-methyl-2-furanyl or 3-pyridinyl. are potent antagonists of dopamine and are therapeutically useful in treating patients suffering from acute psychoses. Processes of preparing said compounds and compositions thereof.