baber/WOPTO huggingface dataset:
Patent CA-2035629-A1 (CA)
Title: High-efficiency heating unit
Inventor: GUYER ERIC C
IPC: F24H8/00
Filed: 1991-02-05
Abstract: A forced hot-water heating system in which sensible and latent heat remaining in flue gases after contact with a primary heat exchanger is recycled into incoming cold air by a second heat exchanger. The heated, humidified intake air is then directed to a fuel burner, and reduces the amount of fuel necessary to achieve a given amount of heat exchange at the primary heat exchanger at normal operating return-water temperatures.
Patent CA-2037985-A1 (CA)
Title: Economical air separator
Inventor: GMELIN ROBERT C
IPC: B01D53/04
Filed: 1991-03-11
Abstract: ABSTRACT OF THE DISCLOSURE       A relatively simple, economical N2 generating unit utilizes a single absorption column filled with a kinetic zeolite sieve material and is controlled by a standard three way solenoid valve by a commercially available timing mechanism.  The duty cycle is relatively fast and produces a nitrigen stream from a feed stream of air having a predetermined minimum pressure.  The overall unit is compact, relatively inexpensive and simple in operation and comprised of standard, readily available components.
Patent CA-2043453-A1 (CA)
Inventor: BASIL JOHN D
IPC: C08L83/04
Filed: 1991-05-29
Abstract: ABSTRACT OF THE DISCLOSURE Siloxane organic hybrid polymers and a method of making them by condensation polymerization are disclosed, along with rigid plastic transparencies coated with such polymers.  The present invention involves reaction of an organoalkoxysilane in the presence of an organic film-forming polymer, wherein cerium oxide is preferably incorporated in the reaction mixture for the attenuation of ultraviolet radiation.  To combine the mechanical strength and stability of inorganic materials with the flexibility and film-forming ability of organic materials, organic-inorganic hybrid polymers in accordance with the present invention are prepared by hydrolytic condensation polymerization, preferably acid-catalyzed, of an organoalkoxysilane in the presence of an organic film-forming polymer such as polyvinylpyrrolidone.  Cerium oxide is incorporated into the polymer for attenuation of ultraviolet radiation, for the protection of the underlying substrate, such as a plastic transparency, preferably acrylic or polycarbonate.
Patent CA-2045647-A1 (CA)
Title: Device for fixing end rings in a rotary screen printing stencil
Inventor: VAN DER MEULEN ANTHONIUS M
IPC: B29C65/00
Filed: 1990-01-24
Abstract: ABSTRACT OF THE DISCLOSURE Described is a device for fixing end rings (4) in the ends of a rotary screen printing stencil (2) wherein a layer of adhesive which has been applied between the end rings (4) and the ends of said stencil (2) is hardened with use of infra-red radiation producing means such as infra-red radiators (8). Such radiators (8) have a reflector (9) which is insulated at its back-side. During the treatment with infra-red radiation the assembly of end rings (4) and printing stencil (2) may be made to carry out a rotation around the longitudinal axis of the stencil.
Patent CA-2046756-A1 (CA)
Title: Thermoplastic compositions based on a vinyl aromatic graft copolymer and a polyamide
Inventor: GHIDONI DARIO
IPC: C08L77/00
Filed: 1991-07-11
Abstract: THERMOPLASTIC COMPOSITIONS BASED ON A VINYL AROMATIC  GRAFT  COPOLYMER  AND  A  POLYAMIDE     ABSTRACT      Thermoplastic compositions endowed with improved mechanical characteristics, and particularly an improved impact resistance, especially when measured on test pie= ces having high thickness, comprising:   (A) an impact resistant vinyl aromatic graft copolymer containing an amount comprised between 0.1 and 2% by weight of an ethylenically unsaturated compound having a carboxylic group or one of its derivatives in the molecule; and (B) a polyamide resin.
Patent CA-2047099-A1 (CA)
Title: Slow combustion, multi-fuel, gravity feed stove
Inventor: WALSH ROGER C
IPC: F24B1/08
Filed: 1991-07-15
Abstract: ABSTRACT         A slow combustion solid fuel stove, for burning a wide range of solid fuels, including wood pellets, sawdust, corn kernels, ears of corn, corn cobs, compressed organic materials and the like has an interior fuel hopper located within the firebox for gravity feed to the combustion zone, to provide economic, controlled slow burning at high efficiency and with low creosote formation.  A well ventilated draft line zone into a single or double tier combustion zone connects by way of a vent deflector with the flue and chimney.
Patent CA-2047119-A1 (CA)
Title: Vitro processing of fusion proteins
Inventor: HEIM JUTTA
IPC: C07K19/00
Filed: 1991-07-16
Abstract: There is provided a novel method for the production of a biologically active protein comprising treating a fusion protein consisting of 1, one or multiple successive protein segment(s) each consisting of said biologically active protein the C-terminal amino acid of which is joined to a linker polypeptide sequence L and 2. a polypeptide tag joined to the C-terminal amino acid of said successive protein segment(s), or consisting of 1. a polypeptide tag joined to the N-terminal amino acid of 2. multiple successive protein segments each consisting of a linker polypeptide sequence L and said biologically active protein, with soluble yeast endoprotcase yscF and with soluble yeast carboxypeptidase ysc.alpha., and isolating said biologically active protein.
Patent CA-2048208-A1 (CA)
Title: Process and composition for protecting chrome steel
Inventor: JASINSKI RAYMOND J
IPC: C23F11/10
Filed: 1991-07-31
Abstract: ABSTRACT OF THE DISCLOSURE      A composition and method for inhibiting the corrosion of steel containing greater than about 9% chromium in the presence of at least one mineral acid, especially at temperatures above 250°F.          The composition is made of a corrosion inhibitor selected from phenyl ketone, phenyl ketone with a quaternary salt of a nitrogen-containing heterocyclic aromatic compound, or cinnamaldehyde with a quaternary salt of a nitrogen-containing aromatic compound and an acid soluble metal from antimonium or bismuth.
Patent CA-2048566-A1 (CA)
Title: Thermoplastic compositions having improved melt flow
Inventor: JORISSEN STEVEN A
IPC: C08L67/00
Filed: 1991-08-07
Abstract: Mo-3483 THERMOPLASTIC COMPOSITIONS HAVING IMPROVED MELT FLOW               ABSTRACT OF THE DISCLOSURE    Thermoplastic molding compositions containing at least one member selected from among aromatic polycarbonate and aromatic polyestercarbonate resins were plasticized by incorporating therewith a small amount of a copolyetherester conforming to   wherein x is about 2 to 15, n is about 3 to 10 and y is about 1 to 10.  A and A' are end groups which may independently be a hydroxy group, a carboxy radical, a C1-C8 alkoxy or a C6-C10 aryloxy group.  The compositions of the invention are characterized by their improved processability.
Patent CA-2048572-A1 (CA)
IPC: F16B7/04
Filed: 1991-08-07
Abstract: A  connector  system  for  store  fixtures  comprising  an elongated connector which is extended through a tubular member in one component of the store fixture and which is yieldably received  by  a  tubular  member  in  a  second  component of  the fixture.
Patent CA-2048631-A1 (CA)
Title: Device for frothing and/or emulsifying, while at the same time heating, a liquid, such as milk, by the introduction of superheated steam
Inventor: SICCARDI ALBERTO
IPC: A47J31/30
Filed: 1990-03-09
Abstract: ABSTRACT OF THE DISCLOSURE         A device for frothing and/or emulsifying a liquid such as milk,  while at the same time heating the liquid, introduces superheated steam through a steampipe having at least  one  steam discharge  nozzle at  its free end.   The nozzle is associated with a member that is rotatably driven by superheated steam exhausted from the discharge nozzle.          This results in rapid emulsification and a creamy,  stable froth.
Patent CA-2050792-A1 (CA)
Title: Bonded composite of a layer and hot melt adhesive for direct bonding to epdm rubber
Inventor: BERRY DAVID H
IPC: B32B23/10
Filed: 1991-09-06
Abstract: BONDED COMPOSITE OF A LAYER AND HOT MELT ADHESIVE FOR DIRECT BONDING TO EPDM RUBBER                    Abstract A bonded composite of a layer of fabric or film and a specialty ethylene based hot melt polymer adhesive is disclosed, which is adapted to be directly bonded to an EPDM (ethylene/propylene/ diene/monomer) rubber.  The fabric comprises a backing material to which a pile material is secured by weaving or the like.  The fabric material may comprise a natural organic fiber, such as cotton or wool, or a synthetic or non-synthetic polymeric material, such as polypropylene, or nylon.  The film may comprise a polyester, such as Mylar (registered trademark of the DuPont Corporation).  The hot melt adhesive has been developed to satisfy particular requirements set forth by the inventors and is designated 375-3.
Patent CA-2050907-A1 (CA)
Title: Outil servant a separer les elements dans un jeu de construction
Inventor: POULSEN OLE V
IPC: A63H33/42
Filed: 1990-03-19
Abstract: Outil (20) servant à séparer les éléments d'un jeu de construction, ces éléments ayant une face munie d'un moyen de raccordement, qui possèdent une paroi s'étendant transversalement à cette  face, et qui sont de préférence placés parallèlement à un rebord, comprenant un levier (25) et une pince. La pince se trouve à une extrémité du levier et comprend une première mâchoire (21, 23) pour serrer le rebord de l'élément, et une deuxième mâchoire (22, 24) pour serrer la partie de la paroi dudit moyen de raccordement dont la face est éloignée du rebord de l'élément. De plus, la pince peut comprendre un moyen de raccordement supplémentaire pour au moins quelques-uns des moyens de raccordement.
Patent CA-2051223-A1 (CA)
Inventor: PAOLI THOMAS L
IPC: H01S5/20
Filed: 1991-09-12
Abstract: A high density surface emitting semiconductor LED array comprises disordered regions extending through a second confinement layer, an active layer and partially extending through a first confinement layer to define light emitting areas therebetween the disordered regions. Individual contacts on the second confinement layer aligned with each emitting area inject current through the layers to a contact on a substrate causing emission of light from the active layer through the surface of the exposed first confinement layer in the substrate. The second confinement layer can be replaced with a DBR to form an enhanced LED array. Both confinement layers can be replaced with DBRs to form a laser array. A refractive semiconductor layer, fresnel lenses or a micro lens array can be used to optically modify the surface emitted light.
Patent CA-2053194-A1 (CA)
Title: Method for producing polypropylene resin article having skin material lined with foamed layer
Inventor: HARA TAKAHISA
IPC: B29C44/04
Filed: 1991-10-10
Abstract: The present invention provides a multi-layer molded article which is made of a polypropylene resin body and a skin material lined with a foamed layer. The article has a good appearance and is produced using upper and lower molds which have a cavity therebetween. A specific cavity clearance is freely set between the molds, a skin material lined with a foamed layer is placed between the upper and lower molds, and a molten polypropylene resin containing a chemical blowing agent is supplied through a resin melt conduit into the lower mold when the cavity clearance (t) is between (C + 15) mm and (C + 50) mm where "C" is a thickness of the skin material lined with the foamed layer, lowering the upper mold at a specific rate and pressing the molten resin at specific pressure to fill the cavity with the molten resin to complete molding of a body of the resin, pressing the body for a certain time after completing molding to form a skin layer, lifting up the upper mold to decrease compression pressure of the skin material lined with the foamed layer to a pressure lower than a blowing pressure of the polypropylene resin to form and solidify a foamed body, and again lowering the upper mold to apply a certain pressure on a molded article and cooling the article in the molds.
Patent CA-2053213-A1 (CA)
Title: Process and equipment for separation by adsorption of at least one gas mixture constituent
Inventor: BOUDET MICHEL
IPC: B01D53/04
Filed: 1991-10-10
Abstract: Process for separating at least one constituent of a gaseous mixture by adsorption, of the kind where the said gaseous mixture travels in a mass of adsorbent (16) of a plurality of adsorbent masses, with cyclic variation in pressure, the high pressure of the cycle being at least twice the low pressure of the cycle, characterised in that the adsorbent is arranged into a plurality of sectorial masses (11) distributed around and integrally attached to a support shaft (2) rotatable around an axis and in that a gas circulation is ensured in the adsorbent in the radial, centripetal or centrifugal direction, towards manifolds extending lengthwise, one situated on the radially inner side, the other situated on the radially outer side in relation to the said sectorial masses of adsorbent and in that a speed of rotation which is between approximately 2 and 20 revolutions/minute is ensured. 
<??>This process is intended particularly for the production of oxygen from air. 
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Patent CA-2054817-A1 (CA)
Title: Bottom blood bag separation system
Inventor: BAUMAN RONALD H
IPC: A61M39/22
Filed: 1991-11-01
Abstract: A plastic blood bag system includes a bag having a generally longitudinal seal extending from the top of the bag and between two blood bag ports downwardly to at least the lower half of the bag but not to the bottom of the bag, thereby leaving the sole passageway within the bag and between two ports located in the lower half of the bag; in one use, whole blood is introduced into the bag and then centrifuged to form a lighter plasma portion and a more dense red blood portion.  The red blood cell portion can then be removed from the lower part of the bag by applying pressure to the bag to push substantially all of the red blood cells through the passageway to one side of the longitudinal seal and out of the bag through the port communicating with that side of the longitudinal seal; in preferred embodiments, the longitudinal seal is generally parallel and close to one edge of the bag and terminates at its lower portion within the lower 10% of the bag length.  In very preferred embodiments, the volume of the side through which the more dense component exits the bag is less than 10% of the total bag volume.  The preferred system may be used as part of a closed multiple blood bag system with electronic monitoring means to provide semi-automated blood separation.
Patent CA-2055116-A1 (CA)
Title: Automatic analysis apparatus
Inventor: BUHLER JURG
IPC: G01N35/00
Filed: 1991-11-07
Abstract: Abstract An apparatus for automatically analyzing test specimens placed in specimen containers which are retained within a plurality of carriers. The apparatus also includes a stationary area in which the carriers are placed during the treatment and analysis of the specimens in the apparatus. Display devices respectively corresponding to the containers are included for indicating the processing status of each carrier in the stationary area.
Patent CA-2057914-A1 (CA)
Title: Collapsible canopy with auto erect roof support structure
Inventor: LYNCH JAMES P
IPC: E04H15/44
Filed: 1990-05-23
Abstract: A canopy shelter has a plurality of corner support forming legs (34) that may be positioned on a support surface. Scissor assemblies (50) interconnect adjacent ones of the corner support and are each pivotally connected to slide brackets (40) slideably mounted on each of the corner supports. Roof support members (60) are pivotally connected to a respective slide bracket on a corner support. Thus, the framework may be collapsed in a store state yet expanded to an expanded state by spreading the corner members apart from one another. Latches (86) are provided to retain the slide brackets in position to hold the framework in the expanded state.  A flexible covering is centrally supported by the apex to form a canopy top (14) and cables (68) may be provided between the top ends of the corner supports and the apex to further support the flexible covering.
Patent CA-2059662-A1 (CA)
Title: Toroidal hyper-expansion rotary engine, compressor, expander, pump and method
Inventor: CHOMYSZAK STEPHEN M
IPC: F01C3/00
Filed: 1990-08-09
Abstract: An engine (10) has a pair of intermeshing rotors (12) and (14). The rotor (12) has intake/compression vanes (18), and the rotor (14) has expansion/exhaust vanes (22). In operation of the engine (10), the intake/compression vanes (18) of rotor (12) interact with the expansion/exhaust vanes (22) of rotor (14) to produce intake/compression chambers and expansion/exhaust chambers. The intake/compression chambers are separate from the expansion/exhaust chambers, and the expansion/exhaust chambers each have a greater volume than each of the intake/compression chambers.
Patent CA-2059826-A1 (CA)
Title: Method of making a cable terminator
Inventor: THOMPSON MAC A
IPC: H01R43/00
Filed: 1992-01-22
Abstract: ABSTRACT OF THE DISCLOSURE          A method of making a cable termination assembly for terminating a high voltage current-carrying conductor.  The assembly includes an outer porcelain housing and an inner polymeric liner of low durometer, cast in the housing before insertion of the cable.  The liner is bonded to the housing wall to prevent air voids. A metal base member may be employed and may include an upstanding shielding collar extending part way into the housing and being joined thereto by the cast liner.
Patent CA-2062844-A1 (CA)
Title: Extensible interjoist hanger support assembly
Inventor: KADEN MILTON E
IPC: H02G3/20
Filed: 1992-03-12
Abstract: An extensible hanger support is provided for use in providing a spanning connection between two spaced apart joints or the like for supporting therefrom such items as ceiling fans, light fixtures and the like.  The support includes first and second extensible members which are telescopically axially movable between a fully collapsed condition and a fully extended condition.  These extensible members employ cooperative means which are normally in threaded engagement in such a manner that rotation of one of the members relative to the other results in axial movement toward either the fully collapsed condition or the fully extended condition depending upon the direction of rotation.  Each of these extensible members has a free end which carries joist engaging means for respectively engaging a ceiling joist.  The cooperative means includes quick release means for quickly releasing the members from their normal threaded engagement with each other while permitting quick sliding axial movement relative to each other only in response to axially applied forces to cause the members to extend toward their fully extended condition while permitting axial movement in the opposite direction only in response to rotational movement in a direction causing said members to be displaced to the collapsed condition.
Patent CA-2062945-A1 (CA)
Title: Method and apparatus for contacting solid particles and fluid
Inventor: HOLMES PHILIP
IPC: C10G11/18
Filed: 1990-07-11
Abstract: A method and apparatus are described for contacting solid particles and fluid. A liquid is sprayed as liquid droplets from the discharge tip of a nozzle (50) into hot solid particles passing upwardly; in a vertical pipe (23). A venturi is formed in the pipe, and the venturi has an enhance portion which is up-wardly convergent to the throat and an exit portion which is up-wardly divergent from the throat. The tip of the nozzle (50) is so located relative to the venturi that liquid droplets commence va-porization, due to heat transfer from the hot solid particles, no further upstream (relative to the direction of movement of solid particles up the pipe (23)) then the throat of the venturi thereby resulting in a high degree of turbulence which causes good mix-ing of particles and vapour downstream of the venturi throat.      The particles-vapour mixture leaving the exit portion of the ven-turf is will mixed and particles are substantially uniformly mixed with vapour in radial planes of the pipe (23) downstream of the venturi. The energy of the droplets entering the pipe (23) from the nozzle (30) is shared with particles upstream of the throat and accelerates them to higher velocities in the pipe (23).      The method and apparatus may be employed for mixing-a hy-drocarbon feed with hot active craking catalyst particles in a ca-talytic cracking unit or process to reduce yields of light gas and coke and to increase yields of more valuable hydrocarbon pro-ducts.
Patent CA-2063317-A1 (CA)
Title: Method of loading down program in remote communication devices via spare lines and communication network using the method
Inventor: IWASAKI MASAAKI
IPC: G06F15/177
Filed: 1992-03-18
Abstract: ABSTRACT OF THE DISCLOSURE         A communication network includes a network management device, and a plurality of communication devices connected, via master lines and spare lines, to each other so that a network composed of the communication devices is formed.  Information is transferred on the master lines in a normal state in which no error has been occurred in the communication devices.  The network management device is connected to at least one of the communication devices.  The network management device includes a first part for loading down a predetermined program used in the communication devices in any one of the communication devices.  Each of the communication devices includes a second part for storing the predetermined program, and a third prt for reading out the predetermined program from the second part and transfers the predetermined program to at least one of the communication devices via at least one of the spare lines.
Patent CA-2064808-A1 (CA)
Inventor: HARVEY ANDREW C
IPC: B29C48/10
Filed: 1990-06-18
Abstract: A flat and nearly mechanically isotropic liquid crystal polymer film (38) can be formed by laminating two biaxially oriented films. A laminate is produced having two thin outer surface portions which are oriented in one direction and a relatively thick inner portion. The film is formed by passing a polymer through a set of three tubular rotors (30) which are concentric and have facing surface which define inner and outer annular polymer flow channels. These rotors may rotate in the same or opposite direction of the flow. Another way to make the film is with a slit-type die (90) through which a polymer flows in one direction, while a moving band (91) passes continuously in a traverse direction. These ordered-polymer films are useful in the production of printed circuit boards.
Patent CA-2066020-A1 (CA)
Title: High speed transition signalling communication system
Inventor: LEVIEN RAPHAEL L
IPC: H04L29/08
Filed: 1992-04-14
Abstract: Abstract A transition signalling communication system suitable for use in a high speed data communication bus between a bus master and two or more peripheral slave devices provides data transfer rates up to twice the maximum clock frequency.  The bus architecture permits transition signalling to be used with a plurality of slave devices with tri-state or open collector control signals.  The bus master includes a first control signal, which initiate a data transfer request by the transition of said first control signal, and a second control signal which provides an indication whether said first control signal transition is valid.  In response, the slave includes a third control signal which acknowledges the first control signal by the transition of said third control, and fourth control signal which provides an indication whether the third control signal transition is valid.
Patent CA-2066886-A1 (CA)
Inventor: STRIDE STEVEN
IPC: B22C9/08
Filed: 1992-04-23
Abstract: ABSTRACT            FILTERS FOR FILTERING MOLTEN METAL            A filter for filtering molten metal comprises a body of reticular ceramic foam having its peripheral surface encased  in a rigid frame made of metal  or ceramic material and having a thickness of less than   3 mm.