baber/WOPTO huggingface dataset:
Patent CA-2086575-A1 (CA)
Inventor: ENGSTROEM FOLKE
IPC: F23C13/00
Filed: 1992-12-31
Abstract: The amount of N2O in flue gases discharged from a first fluidized bed combustion system is minimized by adding an N2O decomposing catalyst in a reactor stage downstream of the combustor.  The catalyst preferably is a calcium based sorbent, such as CaO or limestone, although NiO and other catalysts also may be utilized.  Typically, the N2O decomposition takes place without increasing the temperature of the flue gases above the 700-1000°C level that exists in the combustor.  However, under some circumstances, if a second fluidized bed is provided as the reactor stage, additional fuel and oxygen can be added to increase the temperature of the flue gases to insure that it is over 800°C   After N2O decomposition, the flue gases may be passed through pressurized filter tubes, or through a superheater, economizer, air preheater, optional cyclone separator, and baghouse filter   A cyclone separator is preferably provided between the combustor and reactor stage, and the removed particles are recirculated to the combustor. Removal of particles, including unused sorbent, after the reactor stage also preferably takes place, with recycle to the reactor stage (if a fluidized bed stage) and/or to the combustor.
Patent CA-2087752-A1 (CA)
Title: Thermal-magnetic trip unit with low current response
Inventor: PANNENBORG ERICH J
IPC: H01H73/50
Filed: 1993-01-21
Abstract: A molded case thermal-magnetic circuit breaker having improved low current magnetic trip response pivotally arranges the magnet within the circuit breaker thermal-magnetic trip system for controllably moving toward the latching armature assembly. The movement of the magnet decreases the magnetic separation distance between the magnet and the latching armature to optimize the magnetic trip forces and thereby enhance low current magnetic trip response.
Patent CA-2087880-A1 (CA)
Inventor: STUCKY GERHARD
IPC: C07D239/48
Filed: 1993-01-22
Abstract: N-5-protected 2,5-diamino-4,6-dichloropyrimidines of the general formula: (see formula I) wherein R is a C1-C4 lower alkoxy group or a trifluoromethyl group, which are valuable intermediate products for the production of pharmaceutical agents with antiviral properties. The above-mentioned compounds are produced by cyclization of an N-protected amino malonic acid ester with guanidine in the presence of an alkali metal alcoholate and then chlorination of the resulting N-5-protected 4,6-dihydroxy-2,5-diaminopyrimidine.
Patent CA-2088143-A1 (CA)
Title: Hindered phenolic norbornene dicarboximide
Inventor: ASRAR JAWED
IPC: C08F22/36
Filed: 1991-08-07
Abstract: N-(3,5-di-alkyl-4-hydroxy)phenyl norbornene dicarboximides useful for inhibiting oxidation of polymeric compositions. Such oxidation inhibitor can be provided as a monomer, oligomer or homopolymer or incorporated into copolymers or grafted onto polymers.  Preferred oxidation inhibitors are based on N-(3,5-di-t-butyl-4-hydroxy)phenyl norbornene dicarboximide. Especially useful are cyclic olefin copolymers, e.g. of antioxidant monomer and norbornene dicarboximides.
Patent CA-2089560-A1 (CA)
Title: Rivet connector
Inventor: PALM ERICH
IPC: F16B5/04
Filed: 1992-05-15
Abstract: The rivet connector described includes a sleeve (1) and a pin (2) designed to be inserted in the sleeve, a boring element (8) being fashioned on the front end (4) of the pin (2). Viewed in the longitudinal direction, the sleeve (1) is made up of two sections (20, 21) of different diameters (A, B), the section (21) with the larger diameter (B) being located at the end of the sleeve (1) remote from the limiting flange (7). The diameter (B) of this larger-diameter section (21) is approximately the same as the diameter (D) of the boring element on the front end (4) of the pin (2). A  rivet connector of this kind can be used to connect together workpieces which must subsequently be able to move relative to each other perpendicular to the longitudinal axis of the connector to relieve thermal or similar stresses.
Patent CA-2089737-A1 (CA)
Title: Methods for synthesizing pulps and short fibers containing polybenzazole polymers
Inventor: CHAU CHIEH-CHUN
IPC: D01F6/74
Filed: 1991-08-22
Abstract: Pulps and short fibers containing polybenzoxazole and/or polybenzothiazole or copolymers thereof can be synthesized by freezing the wet fiber straight from the coagulation bath without drying, and chopping or grinding the frozen fiber to the desired size and degree of fibrillation.
Patent CA-2090746-A1 (CA)
Title: Brush housing for a bulk vendor
Inventor: SCHWARZLI JOSEF W
IPC: G07F11/44
Filed: 1993-02-24
Abstract: A coin operated bulk vending apparatus is provided with brushes, preferably tension springs, extending over the aperture above the dispensing wheel. One end of each brush is anchored to a brush housing adjacent a periphery of the dispensing wheel, and the other end of each brush is anchored to an adjustable anchor disposed about the axle of the dispensing wheel. In a preferred embodiment the adjustable anchor comprises a notched bushing adapted to receive a moveable ring secured to the brushes.  In a further embodiment the brushes are anchored to an invertible bushing.  The brushes are preferably frustoconical in configuration to minimize gaps.
Patent CA-2091394-A1 (CA)
Title: Greeting cards and method of making thereof
Inventor: BARRECA ROBERT
IPC: B42D15/04
Filed: 1993-03-10
Abstract: 13533.0002 Abstract of the Disclosure An aesthetically pleasing greeting card having a stained-glass window effect provided by a pattern of cut-outs in a face panel thereof and a panel of translucent material having a corresponding colored pattern rearwardly thereof, the colored pattern allowing the transmission of light therethrough to provide a stained-glass effect,  The card may be attached to a window or other light source to enhance the aesthetically pleasing stained-glass window effect.
Patent CA-2092360-A1 (CA)
Inventor: PEREIRA ABEL G
IPC: A61K8/39
Filed: 1993-03-24
Abstract: Fatty alkoxylate esters which are diesters or triesters of an aliphatic or aromatic dicarboxylic or tricarboxylic acid formed by reacting the acid with a stoichiometric excess of one or more polyalkoxylated fatty alcohols. Compositions for topical application are also disclosed including one or more active ingredients, water and an emollient agent of the fatty alkoxylate esters of the present invention.
Patent CA-2093402-A1 (CA)
Inventor: BARTHOLOMEW DONALD D
IPC: F16B21/08
Filed: 1993-04-05
Abstract: A means for configuring  a  spring  arm  (12) retaining ring (10) which is contained by a groove (90) that is put into a bore (88), such that the concentricity of the ring to a male part (40) which is installed into the bore is limited to an extent that allows the ring to enter a  tapered  bore  (86)  leading  to  the  ring  bore,  and compresses the outside diameter of the ring is shown.  The male part that is installed into the bore includes a configuration which cooperates with the retaining ring, and may or may not be a portion of the part, or assembled to the part.  The combination of the ring disclosed and the cooperating portion allows a retaining ring to be installed by pushing the male part (that is to be retained in the bore) into the bore.
Patent CA-2094108-A1 (CA)
Title: Portable window perch assembly
Inventor: SYDNOR EUGENE E
IPC: A47L3/00
Filed: 1993-04-15
Abstract: ABSTRACT OF THE DISCLOSURE     An improved portable window perch is easily assembled to allow a user to stand on a perch outside the window of a building structure.   The perch is supported by a scaffold placed up against the inside wall surrounding a window.   The scaffold has two vertical bars displaced from one another and which can be folded in half through the use of hinges on each of the two vertical bars.  The vertical bars are displaced from one another with a cross member between them.   Also, at the top of the two vertical bars is an upper horizontal bar, while at the bottom there is a lower horizontal bar.   The two horizontal bars have padding thereon so as to prevent damage to the wail.  The perch has two arms extended through the window, connected to a platform at one end, suspended outside the window, and  a clamp at the other, connected to the cross member with the scaffold erected up against the inside wall, so that the perch is securely and safely supported outside the window.
Patent CA-2097100-A1 (CA)
Inventor: MONETTE DANIEL A
IPC: F16H57/02
Filed: 1993-05-27
Abstract: An adaptor (25) is disclosed for use in mounting a transmission clutch housing (21) to a flywheel housing (11') wherein the flywheel housing defines a first bolt circle pattern (R1), and the clutch housing defines a second, substantially smaller bolt circle pattern (R2). The adaptor includes a first portion (27) and a second portion (29), the portions defining pluralities of bolt holes (37 and 43).  The first portion defines a forward surface (33) and the second portion defines a rearward surface (41), both surfaces coinciding with an imaginary transverse mounting plane MP.  The forward surface of the first portion engages a mounting surface (62) of the flywheel housing, while the rearward surface of the second portion engages a forward surface (54) of the clutch housing, such that the use of the adaptor (25) does not change the relative axial position of the flywheel housing and clutch housing, which would require a change in the configuration or length of the transmission input shaft (19).
Patent CA-2097416-A1 (CA)
Title: Recombinant immunotoxin composed of a single chain antibody reacting with the human transferrin receptor and diphtheria toxin
Inventor: PASTAN IRA
IPC: C12N15/13
Filed: 1991-12-03
Abstract: Single chain immunotoxins directed at the human transferrin receptor using PCR based methods are described. Anti-TFR(Fv)-PE40 contains DNA for the antigen binding portion (Fv) of a monoclonal antibody directed at the human transferrin receptor fused to the DNA  for a 40,000 molecular weight fragment of Pseudomonas exotoxin (PE40). In another fusion protein, DT388-anti-TFR(Fv), DNA for the antigen binding portions of the anti-TFR antibody has been fused to the DNA encoding a truncated form of Diphtheria toxin. In anti-TFR(Fv)-PE40, the single chain antibody precedes the toxin whereas in DT388-anti-TFR(Fv) the single chain antibody is at the carboxyl end of toxin. The proteins encoded by these gene fusions were expressed in E. coli and purified by conventional chromatographic techniques to near homogeneity.
Patent CA-2097918-A1 (CA)
Inventor: CHANG FRANK N
IPC: A01N63/00
Filed: 1991-12-06
Abstract: An insecticidal composition comprising a first composition having an effective amount of at least one species of entomop-athogen distributed in a matrix. A second composition selected from vegetable oil, crop oil and partially hydrogenated oil con-taining mono- and di-glycerides surrounds the first composition and significantly prolongs nematode viability of during storage. The matrix is a nematode-containing macrogel or paste of partially hydrogenated oils containing mono and di-glycerides. The macrogel matrix is selected from a continuous polymer macrogel or microcapsule-containing macrogel. Partially hydrogenated oils containing mono- and di-glycerides, (e.g. Crisco R shortening), can also be mixed with free nematodes to produce a paste formulation. Trapping nematodes in a Crisco R matrix formulation along with the water retentive polymer results in in-creased protection against desiccation and significantly prolonged viability during storage.
Patent CA-2100245-A1 (CA)
Title: Methods and compositions for the expression of biologically active eukaryotic cytochrome p450s in bacteria
Inventor: FISHER CHARLES W
IPC: C12N15/67
Filed: 1992-01-10
Abstract: Disclosed are methods and compositions for effecting bacterial expression of eukaryotic cytochrome P450 enzymes in a bi-ologically active form. Certain embodiments involve the expression of eukaryotic cytochrome P450 17.alpha.-hydroxylase which is ex-pressed in large amounts in an E. coli host in a biologically active form without the need for coexpression or admixture of a cy-tochrome P450 reductase. Methods and compositions are also disclosed for the construction of cytochrome P450 enzyme hybrids, incorporating the N-terminal 9 amino acids from bovine 17.alpha.-hydroxylase, which will enable many eukaryotic cytochrome P450 enzymes to be expressed in bacteria.
Patent CA-2102100-A1 (CA)
Title: Conservation apparatus
Inventor: FISHBOURNE IAN D
IPC: E02F5/10
Filed: 1991-04-29
Abstract: Ground conservation apparatus is provided for alleviating soil erosion by flowing ground water. The conservation apparatus is in the form of an elongate strip of water resistant barrier material which may be arranged in an upstanding attitude along a selected horizontal ground contour whereby the flow of water across the ground contour, together with the material carried thereby, is restrained from continuing its down-hill flow and eroding the ground.
Patent CA-2103077-A1 (CA)
Title: Time resolved optical array detectors and ccd cameras for frequency domain fluorometry and/or phosphorimetry
Inventor: GRATTON ENRICO
IPC: G01N21/64
Filed: 1993-11-15
Abstract: TIME RESOLVED OPTICAL ARRAY DETECTORS AND CCD CAMERAS FOR FREQUENCY DOMAIN FLUOROMETRY AND/OR PHOSPHORIMETRY               ABSTRACT OF THE DISCLOSURE          An apparatus for cross-correlation frequency domain fluorometry-phosphorimetry comprises a source of electromatic radiation and means for amplitude modulating the radiation at the first frequency.   The amplitude modulated radiation is directed at a sample, while an optical   array   detector   measures   the resulting luminescence  of  the  sample.   A  signal  is  provided coherent with the amplitude modulated electromagnetic radiation  signals,  at  a  second  frequency  which  is different from the first frequency.  The apparatus has the capability  for shutting off and turning on the coherent signal at the second frequency in a cycle having a third frequency which is different from the difference between the first and second frequencies. This produces a resultant  signal at a  frequency derived  from the frequency difference and the third frequency.  Typically the resultant signal is no more than about a quarter of the frequency difference. The resultant signal modulates the gain of the detecting means or multiplies its output, depending upon the nature of the detecting means.  The amount of luminescence measured by the optical array detector is read when the signal is off in its cycle of the third frequency.
Patent CA-2104056-A1 (CA)
Inventor: GBOGI EMANUEL O
IPC: A61K8/365
Filed: 1993-08-13
Abstract: TOPICAL COMPOSITIONS FOR PROTECTION    AGAINST ULTRAVIOLET RADIATION                ABSTRACT OF THE DISCLOSURE Disclosed are compositions useful for topical application to protect skin from ultraviolet radiation, which comprise effective amounts of the reaction product of a calcium compound such as calcium hydroxide, calcium oxide, or calcium carbonate, with citric acid, the reaction product exhibiting a calcium:citrate molar ratio of 2.50:2 to 2.95:2 and a 1% slurry of the reaction product in water at 25°C exhibiting a pH value of about 4 to below 7.
Patent CA-2107497-A1 (CA)
Title: Engraved orthodontic band
Inventor: HORNG BRYAN L
IPC: A61C7/18
Filed: 1993-10-01
Abstract: ABSTRACT      An orthodontic band (10) has a laser engraved mark (14) with a white, frosty appearance.  The mark is characterized by an absence of dark surface oxides, and is aesthetic and easy to read.
Patent CA-2108456-A1 (CA)
Title: Data tag and detecting method
Inventor: LITTLE WARREN D
IPC: G06K19/06
Filed: 1992-04-07
Abstract: 2108456 9218947 PCTABScor01 An identification or data tag composed of a central set of data cells surrounded by border cells which cooperate with their adjacent data cells by constrasting therewith to form a reference perimeter defined by the inter-sections of the boundaries of the border cells with their respective adjoining data cells.
Patent CA-2108762-A1 (CA)
Inventor: LEEN MONTE A
IPC: F21L14/00
Filed: 1993-10-19
Abstract: A halogen clamp light (11) comprising a halogen light (13) adjustably attached to one end of a rigid, elongate support (17) is disclosed. The halogen light (13) includes a housing (19), a halogen bulb (37), a reflector (35), a glass lens (29), and a protective grill (31, 33). A spring-loaded clamp is attached to the other end of the elongate support. The elongate support (17) includes a cavity that houses an on-off switch (71). The adjustable attachment includes a threaded shaft (53) that extends through a flange (41) that protrudes rearwardly from the housing (19). A manually adjustable locking nut (63) clamps the flange (41) to the elongate support (17) after the housing is adjusted to the desired position. A plastic bushing (55) is located between the flange (41) and the elongate support (17). Further, a hook (99) extends longitudinally outwardly from the cavity end of the elongate support (17).
Patent CA-2109092-A1 (CA)
Title: Iontotherapeutic devices, reservoir electrode devices therefor, process and unit dose
Inventor: CHIEN YIE W
IPC: A61K9/00
Filed: 1991-09-25
Abstract: Provided are reservoir electrodes (10) for iontotherapeutic devices which have two chambers; the first chamber (14) is electrically connected to the iontotherapeutic device and is designed to contain electrolytic solution and the second chamber (16) has ionized pharmaceutical dissolved in electrolytic solution. The two chambers are separated by a permselective membrane (18). The first chamber has means to inhibit increase in ionic content caused by the operation of the iontotherapeutic device. Also provided are unit dose forms (34) adapted for insertion into the reservoir electrodes. The dose unit forms are made of crosslinked polymer and contain ionizable pharmaceutical which is released for absorption during operation of the iontotherapeutic process. Also provided are novel iontotherapeutic devices and processes.
Patent CA-2109275-A1 (CA)
Inventor: BERGER STEVEN D
IPC: G03F7/20
Filed: 1993-10-26
Abstract: It has been found that for a SCALPEL lithographic system thermal effects dictate that the acceleration voltage for the exposing electrons be maintained within a specific range. This range depends on a variety of factors but is generally in the 50 to 150 KeV region. Additionally, thermal considerations also dictate the method of scanning the mask to print an entire wafer.
Patent CA-2112037-A1 (CA)
Title: Method of sludge removal
Inventor: KELLOGG STEPHEN R
IPC: B01D21/00
Filed: 1993-12-21
Abstract: METHOD OF SLUDGE REMOVAL               Abstract of the Disclosure The invention provides a method for removing a solid material, e.g., sludge, from the bottom of a body of water.  The method includes the steps of:  a) placing a turbidity curtain of water impermeable material about a first minor portion of a body of water, the curtain extending from the surface to the bottom of the body and defining a first cell, b) pumping sludge from the first cell, c) placing a turbidity curtain around a second minor portion of the body of water, the curtain extending from the surface to the bottom of the body and defining a second cell, d) pumping sludge from the second cell after pumping from the first cell has ceased, e) after the resuspended solids in the water in the first cell have been allowed to settle for a predetermined time after pumping, moving the first cell to a different location in the body of water, and f) repeating steps d) and e) with the first cell, after being moved, becoming the second cell and the second cell becoming the first cell.  Step f) is  repeated until all, or a desired portion, of the body of water has been dredged.
Patent CA-2113951-A1 (CA)
Title: Adjustable Backrest for a Chair
Inventor: KUSIAK JAMES L
IPC: A47C7/40
Filed: 1994-01-21
Abstract: An apparatus is provided for adjusting the position of a backrest relative to a chair seat. The backrest includes an elongated stem having a curved lower portion. Preferably, a spring operably engages the stem to bias it in an upward direction. A housing is adapted to slidably receive the curved portion of the stem and guide the spring. A latch mechanism is adapted to engage the stem to lock the backrest in a desired position, and an actuator member is adapted to move the latch mechanism between an engaged and disengaged position. In operation, the latch mechanism is disengaged to allow the backrest stem to move in a curvilinear path to a desired height and corresponding angular position, and reengaged to lock the backrest stem in said position.
Patent CA-2114004-A1 (CA)
Title: Diaphragm pump
Inventor: BROOKE GERARD
IPC: F04B9/127
Filed: 1992-07-27
Abstract: A pump comprises a flexible diaphragm (10) separating a pumping chamber (12) for the fluid to be pumped from a driving chamber (14) for a pressure fluid operating the pump. An outlet (24) for the pressure fluid from the driving chamber is controlled by a valve element (28) that is moulded integrally with the diaphragm and with a tension element (36) that draws the valve element to its closing position. Deflection of the diaphragm by the pressure fluid pumps fluid from the pumping chamber and as the deflection increases the valved outlet of the driving chamber is opened against the force of the tension element. Release of the pressure in the driving chamber allows the valve to close again and the tension element ensures that it returns to a position sealing the driving chamber outlet.
Patent CA-2115083-A1 (CA)
Title: Seam-weaving machine with fringe catcher
Inventor: HACKER HANS-EUGEN
IPC: D03D3/04
Filed: 1994-02-07
Abstract: ABSTRACT OF THE DISCLOSURE    A seam-weaving machine for making a fabric endless by a woven seam is provided with a fringe catcher adjacent the edge zone of the woven seam.   The fringe catcher, after a shed change, is moved forward beyond the fell by a drive device and upon  return  of  the  fringe  catcher,  draws  an  upwardly protruding fringe thread away to the rear above the already formed part of the woven seam.
Patent CA-2116828-A1 (CA)
Title: Nickel catalyst for the cyanation of aromatic halides
Inventor: VAN SOOLINGEN JACOB
IPC: C07C255/50
Filed: 1994-03-02
Abstract: Abstract The invention relates to a nickel compound which can be used as a catalyst,  said nickel compound having a central nickel atom complexed by a diphosphine ligand.  In said diphosphine ligand the P-atoms are interconnected through a metallocene biradical or an aromatic bivalent radical. The invention also relates to the use of said nickel compound and  to  a method of preparing  an aromatic  cyanide  from an aromatic halide and an alkali metal cyanide in a substantially anhydrous non-dipolar aprotic solvent under the influence of said phosphine-nickel catalyst, in the presence of a reducing agent.
Patent CA-2117171-A1 (CA)
Title: Purification of 1,4-dioxan-2-one by crystallization
Inventor: JIANG YING
IPC: C07D319/12
Filed: 1994-03-07
Abstract: ABSTRACT Methods for purifying 1,4-dioxan-2-one includes dissolving a crude reaction product containing 1,4-dioxan-2-one in an aliphatic ester solvent, forming crystals of 1,4-dioxan-2-one, and filtering the mixture to recover solids containing crystalline 1,4-dioxan-2-one which is relatively pure compared to the crude reaction product.