baber/WOPTO huggingface dataset:
Patent CA-2056635-C (CA)
Title: High performance composite coating
Inventor: WONG DENNIS
IPC: B05D3/02
Filed: 1991-11-29
Granted: 1999-08-03
Abstract: Two methods are provided for applying and forming a protective composite coating on a metallic substrate.  In the first method, the substrate is heated to a temperature between about 175° C and 275° C and a powdered coating of epoxy resin between 100 and 400 microns thick is applied to the outer surface of the heated substrate.   A premixed powder coating of epoxy resin and polyolefin is applied directly  onto  the  epoxy  resin  coating,  forming  an interlayer of interspersed domains of epoxy and polyolefin between about 100 and 400 microns in thickness.   On to this,  powdered  polyolefin  is  sprayed  to  produce  a polyolefin  sheath  coating  for  the  metallic  substrate between 200 and 1000 microns in thickness.  In the second embodiment of the method, the interlayer is formed by spraying pure epoxy resin powder and polyolefin powder from separate sources simultaneously onto the substrate.   By these methods, a metallic substrate coated with a composite epoxy/polyolefin  protective  coating  is  produced.    A particular advantage of the methods results from the fact that the powders are applied in a common spray booth through which the substrate is advanced.
Patent CA-2057797-C (CA)
Title: Fail-safe uninterruptible lighting system
Inventor: EDWARDS LARRY M
IPC: H02J9/06
Filed: 1991-12-17
Granted: 1996-01-23
Abstract: A fail safe power supply system specially adapted for suoplying power to devices such as lights.  A battery is provided to supply power to the devices, and during normal operation, charge on the battery is maintained within selected levels by a charging control system that is connected to a source of commercial power.  During a commercial power outage, the battery continues to supply normal power to the devices for a prolonged period of time, usually until commercial power is restored, thus obviating the necessity for a separate backup power source.
Patent CA-2065210-C (CA)
Title: Controlled release matrix for pharmaceuticals
Inventor: KRISHNAMURTHY THINNAYAM N
IPC: A61K9/22
Filed: 1992-04-06
Granted: 2000-08-29
Abstract: The controlled release of therapeutically active agents is achieved from a controlled release matrix of sodium alginate and a calcium salt. When the composition is to be administered rectally, the matrix is combined with a therapeutically active agent and a suitable suppository base. When the composition is to be administered orally, the matrix further includes a higher aliphatic alcohol.
Patent CA-2072829-C (CA)
Title: Surface processing jet
Inventor: LINDWALL REINE
IPC: C23G3/00
Filed: 1992-06-30
Granted: 2003-09-23
Abstract: A surface processing device for cleaning and other surface processing of running material, where the material is passed under movement in a path (19A) through the device, wherein the device is provided with means, comprising an inner cavity (13) that is fed with a processing agent under pressure and has a jet forming slot (20) to direct to the running material a well defined laminar jet of the process-ing agent under an acute angle.
Patent CA-2074976-C (CA)
Title: Pressurized air seal for combustion chamber
Inventor: GERSTMANN JOSEPH
IPC: F23M11/02
Filed: 1992-07-30
Granted: 1996-10-22
Abstract: Combustion apparatus (10) includes a combus-tion chamber (12, 212), a cover (24, 208) covering an end wall (14, 210) of the combustion chamber and defining a buffer space (26, 206) therebetween, and a blower (32, 202) external to the cover and supplying air to the buffer space and pressurizing the buffer space to a higher pressure than the combustion chamber such that leakage at penetrations (46) and/or interfaces (334, 336) flows from the buffer space into the combustion chamber, rather than the reverse, eliminating the need for leak-tight seals, and instead permitting leakage in a desired direction. The sum of pressure drops (R1 + R2) from the blower to the mixer and burner assembly and from the mixer and burner assembly to the combustion chamber relative to that (R5) across the combustion chamber exhaust outlet (22, 220) is higher than the pressure drop (R3) from the blower to the buffer space relative to that (R4) across the buffer outlet (30) at the penetrations. In one embodiment, a first conduit (58) supplies air along a path (34) from the blower to the mixer and burner assembly without passing through the buffer space, and a second conduit (60) independently supplies air from the blower to the buffer space. A pressure dropping orifice (36) is provided between the blower and the mixer and burner assembly. A gas inlet port (40) is external to the cover (24) and downstream of the pressure dropping orifice (36). The buffer space (26) communicates with the blower (32) along an air flow path (44) upstream of the pressure dropping orifice (36). In another embodi-ment, air flows through the buffer space (206) to the mixer and burner assembly. The buffer space (26, 206) is thin and flat, and the cover (24; 208) covers only one end wall (14, 210) of the combustion chamber, not the other end wall nor the sidewall, such that the latter are accessible without removing the cover.
Patent CA-2076707-C (CA)
Title: Protection of furniture edging
Inventor: MARKUSCH PETER H
IPC: C08G18/76
Filed: 1992-08-24
Granted: 2003-12-30
Abstract: The invention is directed to a process for protecting the edges of a panel by applying a non-sagging polyurethane composition to the edges of said panel, and allowing the composition to cure.
Patent CA-2089598-C (CA)
Title: New polymer-modified, oxidized asphalt compositions and methods of preparation
Inventor: GORBATY MARTIN L
IPC: C08L95/00
Filed: 1993-02-16
Granted: 2001-02-06
Abstract: Disclosed in this invention are novel asphaltic compositions having improved viscoelastic properties and storage stability. They contain neutralized mixtures of oxidized asphalt and an acid functionalized polymer, which polymer is selected from the group consisting of sulfonated EPDM, sulfonated styrene-butadiene, and acrylic acid terpolymers, in an amount that is sufficient to result in an asphaltic composition having a softening point greater about 55°C and a viscosity in the range from about 150 cP to 2000 cP or from about 3000 cP to about 8000 cP at 135°C. The basic neutralizing agent used in these compositions contain cations having a valence of from +1 to +3, preferably +2. The invention also relates to the products produced by the process and method of making the compositions. The compositions can be used as a binder in paving applications, particularly as a binder in dense graded and in open graded hot mix pavements.
Patent CA-2092654-C (CA)
Inventor: KANAZAWA YUKIO
IPC: A47C3/38
Filed: 1993-03-12
Granted: 1996-11-26
Abstract: It is an object of the present invention to provide a supporting platform having a tough structure, whose height can be optionally adjusted.  In the present invention, since the intermediate section which links the base section to be placed on the floor with a platform on which a person or object is placed comprises expandable and contractable links, a gear mechanism for regulating the movements of these links and a gear stop mechanism for regulating the gear, it is possible to provide a supporting platform of extremely high durability.
Patent CA-2094310-C (CA)
Inventor: BELLEM NORMAN A
IPC: E04D3/361
Filed: 1993-04-19
Granted: 1999-03-23
Abstract: A seamed metal roof is formed from an array of panels having lateral edges interconnected by rolled seams, and a plurality of clamps, each comprising a first elongate part having a mating surface, a longitudinal recess having dimensions like those of the seam, a second elongate part having a mating surface opposing the recess and the mating surface of the first part, and a fastener for drawing said parts together, to confine the seam in the recess.
Patent CA-2095214-C (CA)
Title: Agents for the treatment of diseases caused by parasitic protozoa and neoplastic diseases
Inventor: SUFRIN JANICE R
IPC: A61P31/04
Filed: 1991-10-29
Granted: 2002-11-26
Abstract: The compounds 5'-deoxy-5'-(hydroxyethylthio)adenosine (HETA); 5'-deoxy-5'-(monofluoroethylthio)adenosine (MFE-TA); 5'-deoxy-5'-(chloroethylthio)adenosine (CETA); 5'-deoxy-5'-(bromoethylthio)adenosine (BETA); 5-deoxy-5-(monofluoroe-thylthio)ribose (MFETR); 5-deoxy-5-(chloroethylthio)ribose (CETR); 5-deoxy-5-(bromoethyithio)ribose (BETR) and 5-deoxy-5-(hydroxyethylthio)ribose (HETR), are described as well as their uses in treating infections caused by 5'-deoxy-5'-methylthioad-enosine (MTA) phosphorylase-containing pathogenic microorganisms; in treating infections caused by 5-deoxy-5-methylthiori-bose (MTR) kinase-containing pathogenic microorganism; and for treating neoplastic diseases.
Patent CA-2095874-C (CA)
Inventor: OHARA YOSHINOBU
IPC: H05B3/84
Filed: 1993-05-10
Granted: 1997-12-09
Abstract: A heater includes a heating element made of a PTC thermistor, electrodes formed on upper and lower surfaces of the heating element, flat metallic terminals connected to the electrodes, lead wires connected to inner surfaces of the metallic terminals that face each other, and an insulating  case  for  covering  exposed  portions  of  the heating  element,   electrodes,   and  of   the  metallic terminals and the connections between the lead wires and the metallic terminals.  With this structure,  since no bumps are produced on the outer surfaces of the metallic terminals by connecting the lead wires to the metallic terminals, the thickness of the insulating case over the metallic terminals is reduced.  This allows a reduction in the thickness of the heater and an improved heat transfer between the heating element and the heated object.   A method of  manufacturing the heater includes the steps of forming a heating unit by connecting the flat metallic terminals to the electrodes and connecting the lead wires to the metallic terminals, disposing the heating unit on a predetermined  position  of  the  base  section  of  the insulating case, and sealing the exposed portions of the heating unit in the insulating case by injection-molding a cover  section  of  the  insulating  case with  insulating material after disposing the base section in a mold. This method enables the heating unit to be easily covered with the insulating case, thereby facilitating the manufacture of the heater.
Patent CA-2098483-C (CA)
Title: Safe adeno-associated virus 2 vector for gene therapy
Inventor: SRIVASTAVA ARUN
IPC: A61K48/00
Filed: 1992-11-06
Granted: 2000-03-14
Abstract: Gene therapy involves the transfer and stable insertion of new genetic information into cells. The present invention is directed to safe vectors for gene therapy and thus provides hybrid parvovirus vectors which are capable of site-specific integration into a mammalian chromosome without substantial cytotoxicity, and which direct erythroid cell-specific expression of heterologous genes. The hybrid vector is useful in gene therapy, particularly in the treatment of hemoglobinopathies and other hematopoietic diseases, and in conferring cell-specific multidrug resistance. A method of delivery of constitutive levels of a pharmaceutical product and a method of producing a recombinant protein are also provided.
Patent CA-2100701-C (CA)
Inventor: SOS SIEGMUND
IPC: B65D73/00
Filed: 1993-07-16
Granted: 1997-01-07
Abstract: A packing and storing receptacle includes a bottom panel and a top panel superposed on the bottom panel and defining a pouch therewith for receiving at least a longitudinal part of the contents.  The bottom and top panels are formed by a single, flexible sheet and are separated from one another by a transverse folding edge defining an end of the receptacle.  The top panel has a terminal edge remote from the transverse folding edge and defining, together with the bottom panel, a removal opening of the pouch.  The bottom and top panels have longitudinal lateral edges extending generally perpendicularly to the transverse folding edge along the length of the receptacle.          There are also provided lateral and/or transverse tabs cut out, bent out from and integrally attached to the flexible sheet for laterally guiding and positioning the contents.     The longitudinal lateral edges of the bottom panel are directly and/or indirectly connected to the longitudinal lateral edges of the top panel at transversely opposite zones.
Patent CA-2103047-C (CA)
Inventor: KORDELIN TAPIO
IPC: E03D11/02
Filed: 1992-06-02
Granted: 2004-01-27
Abstract: The object of the invention is a WC module (10) which is as such ready to be installed into place and to be connected to the water and sewer connections. The module has been formed so that its inner wall (12) and WC bowl (11) are of the same piece. Above the WC bowl are situated seat boards (15) which are fixed to the inner wall by means of a hinge (14), so that the seat boards can be turned into an upright position when they are not in use. The module is formed of two elements (22, 23), in the rear part (22) of which are situated the technical devices relating to the functioning of the WC module, such as the WC bowl (11), the water tank (29), etc., and the front part (23) of which incorporates a door (24).
Patent CA-2103558-C (CA)
Title: Preparation and method for control of social insects
Inventor: KEYEL RICHARD E
IPC: A01N25/00
Filed: 1992-02-06
Granted: 1997-12-16
Abstract: An aqueous formulation for the control of social insects, especially wasps, and a method for its use. The formulation contains insect attracting ingredients and a toxicant in water. The toxicant is a hemisalt preparation of a perfluoroalkane sulfonic acid which is partially neutralized to a pH of between 2.8 and 6.5.
Patent CA-2104750-C (CA)
Inventor: PAKER MARIANNE FLOOD
IPC: H04Q11/04
Filed: 1993-08-24
Granted: 1997-09-23
Abstract: A time-division multiplexed circuit switch (100) handles different-size time-division multiplex frames (30, 40, 50) in a single, shared, time-space-timeswitching fabric. Both time slot interchange stages (131, 141) and a time-multiplexed space stage (120) of the switching fabric receive a plurality of overlapping different-size frames in each incoming superframe (30) of a succession of superframes and interleave switching of the different-size frames through theswitching fabric to create a succession of outgoing superframes each one of which also has a plurality of the time-division-multiplex frames of different-sizes but from a plurality of incoming superframes. Switching of every individual received frame of any size commences as soon as the entire individual frame is received.
Patent CA-2105270-C (CA)
Inventor: DYKAAR DOUGLAS RAYMOND
IPC: G01R1/07
Filed: 1993-08-31
Granted: 1998-07-28
Abstract: This invention embodies a new electro-optic sampling probe with femtosecond resolution suitable for ultra-fast electro-optic sampling. The new probe is several times thinner and has a dielectric constant four times less than the best reported conventional bulk LiTaO3 probes. In addition, the ultimate bandwidth is50 percent greater than an equivalent LiTaO3 probe. The probe is a thin film of Alx Ga1-x As used in both total internally reflecting and free-standing geometries. Here x is chosen for sufficient transmission of the crystal to the wavelength of the laser source being used for electro-optic sampling. The thickness of the film is a small fraction of the thickness of prior art probes and is chosen, for speed andsensitivity of electro-optic sampling, to be thin compared to the spatial extent of the laser pulse. The thin film probe eliminates many of the problems associated with the use of bulk crystals as electro-optic sensors.
Patent CA-2106391-C (CA)
Title: Bit oriented digital switch and general digital switch for pcm transmission systems
Inventor: GHISLER WALTER
IPC: H04B14/04
Filed: 1993-01-29
Granted: 2000-05-16
Abstract: Described is a bit oriented digital switch comprising means for controlled change of bit position and PCM word of chosen bits and bit groups in PCM words received by the switch. The switch is suitable to combine with a conventional word oriented switch to allow flexible switching of both entire PCM words and parts thereof. The switch also makes it possible to define a digital PCM transmission system, in which PCM words can contain one or several traffic channels and in which traffic channels that occupy a bit group containing at least one bit, but not an entire PCM word, dynamically are allocated necessary space at an arbitrary available location in PCM words.
Patent CA-2116214-C (CA)
Title: In situ hybridization method
Inventor: ZARLING DAVID A
IPC: C12Q1/68
Filed: 1992-09-03
Granted: 1998-12-22
Abstract: A method of identifying the presence of a known target sequence in nucleic acid contained in a fixed cellular or subcellular biological structure. By adding a stable, reporter-labeled RecA/single-stranded probe complex to the cellular or subcellular structure, the target sequence can be effectively labeled by in situ hybridizati on, allowing the target sequence to be visualized histologically and microscopically or detected by in situ cytometry or cell sort ing flow techniques.
Patent CA-2117314-C (CA)
Title: Biological specimen cassette
Inventor: LALIBERTE GERARD
IPC: B65D43/16
Filed: 1994-06-09
Granted: 1999-09-28
Abstract: A biological specimen cassette comprising a base  and  a  lid  wherein  the  lid  has  two  pivotal connections, one at the front wall, the other at the rear wall of the base.  The first pivotal connection allows a specimen to be placed in the base while the second pivotal  connection allows the  lid to be opened for removal of the specimen.  Both pivotal connections serve to secure the lid to the base during storage of the specimen, but allow subsequent easy detachment of the lid from the base.
Patent CA-2121789-C (CA)
Title: Improved triple effect absorption cycle apparatus
Inventor: ROCKENFELLER UWE
IPC: F25B15/06
Filed: 1992-11-24
Granted: 2003-01-28
Abstract: The basic apparatus of the invention is a triple effect absorption cycle apparatus, comprising first, second and third gen-erators (G1, G2, G3) each containing an aqueous absorption fluid and operating at successively higher temperatures; first, sec-ond and third condensers (C1, C2, C3) operating at successively higher temperatures, and operatively communicating with the generators (G1, G2; G3); first heat exchange means cooperating between the third and second generators, and between the sec-ond condenser and first generator; for directing energy therebetween; one, two or three absorbers (A1, A2, A3) and one, two or three fluid loops for directing aqueous absorption fluid between absorbers and second heat exchange means for exchanging ener-gy between aqueous absorption fluid flows in said loops; and one, two or three evaporators (E1, E2, E3), operatively communi-cating with the absorbers. The invention includes preferred aqueous absorption fluids, a heat and mass transfer additive in the ab-sorption fluid, means for separating the additive before the fluid reaches the high temperature generator, a heat and mass transfer reservoir, and a number of different absorption fluid loop options for routing the fluid between the absorber(s) (A1, A2, A3) and the three generators (G1, G2, G3).
Patent CA-2132386-C (CA)
Inventor: FICKEN LEONARD A
IPC: G07F11/00
Filed: 1994-09-19
Granted: 1996-01-09
Abstract: A vend door assembly for a vending machine from which articles are selected from a supply area and then deposited into a common vending area of the vending machine and which provides a customer access opening through which articles can be removed.  It includes a delivery compartment mounted for pivotal movement between a receiving position in which articles are received through an opening therein from the article supply area, and an article retrieving position in which the opening therein is pivoted and aligned with the customer access opening in the vending area so that a customer can remove the articles from the delivery compartment.  It further includes an anti-pilferage door which is mounted coaxially with the delivery compartment for pivotal movement between a first position in which it allows articles to be deposited in the delivery compartment and a second position in which it blocks access to the supply of articles through the customer access opening in the vending machine and the opening in the delivery compartment, when a delivery compartment is in its retrieving position.
Patent CA-2137720-C (CA)
Title: Catalytic distillation structure
Inventor: CROSSLAND CLIFFORD STUART
IPC: B01J19/30
Filed: 1994-12-09
Granted: 2006-10-03
Abstract: A bale shaped catalytic distillation structure formed by placing multiple link or continuous tube shaped structures on top of a wire mesh screen, such as demister wire, arrayed at an angle to the longitudinal axis of the bale, such that when the wire mesh screen is rolled up, the rolled structure provides a new and improved catalytic distillation structure. The tube comprises flexible, semi-rigid open mesh tubular element filled with a particulate catalytic material the tube shaped structure having a fastener every 1-12 inches in length to form a multiple link.
Patent CA-2138790-C (CA)
Inventor: SCHRIEVER MATTHIAS P
IPC: C23C22/66
Filed: 1993-06-23
Granted: 2004-10-19
Abstract: (A) A process for forming a cobalt conversion coating on a metal substrate, thereby imparting corrosion resistance and paint adhesion properties. The invention was developed as a replacement for the prior art chromic acid process. The process includes the steps of: (a) providing a cobalt conversion solution comprising an aqueous solution containing a soluble cobalt-III hexavalent complex, the concentration of the cobalt-III hexavalent complex being from about 0.01 mole per liter of solution to the solubility limit of the cobalt-III hexavalent complex; and (b) contacting the substrate with the solution for a sufficient amount of time, whereby the cobalt conversion coating is formed. The substrate may be aluminum or aluminum alloy, as well as Cd plated, Zn plated, Zn-Ni plated, and steel. The cobalt-III hexavalent complex may be present in the form of Me m[Co(R)6]n, wherein Me is Na, Li, K, Ca, Zn, Mg, or Mn, and wherein m is 2 or 3, n is 1 or 2, and R is a carboxylate having from 1 to 5 C  atoms. (B) A chemical conversion coating solution for producing the cobalt conversion coating on a metal substrate, the solution including an aqueous solution containing a soluble cobalt-III hexavalent complex, the concentration of the cobalt-III  hexavalent complex being from about 0.01 mole per liter of solution to the solubility limit of the cobalt-III hexavalent complex. (C) A coated article exhibiting acceptable corrosion resistance and paint adhesion properties, the article including: (a) a metal substrate; and (b) a cobalt conversion coating formed on the substrate, the cobalt conversion coating including aluminum oxide Al2O3 as the largest volume percent, and cobalt oxides CoO, Co2O3, and Co3O4.