baber/WOPTO huggingface dataset:
Patent CA-2303100-A1 (CA)
Title: Plunger seal assembly for a high pressure pump
Inventor: RAGHAVAN CHIDAMBARAM
IPC: F04B53/16
Filed: 1998-09-17
Abstract: A high pressure fluid seal assembly is shown and described. The seal assembly includes a seal carrier having a bore through which a reciprocating pump plunger may pass, the seal carrier having a first annular groove concentric with the bore, and carrying an annular seal. The seal carrier further includes an integral annular guidance bearing positioned in a second annular groove of the seal carrier, the second annular groove and guidance bearing contained therein being axially spaced from the first annular groove and seal contained therein. An inner diameter of the guidance bearing is smaller than an inner diameter of the seal carrier in a region between the seal and the guidance bearing. The seal is therefore supported directly by the seal carrier, although the seal carrier is spaced from the reciprocating plunger by the guidance bearing. Frictional heating in the region of the seal is therefore reduced, thereby increasing the life of the seal. Materials for the plunger, seal and guidance bearing are selected to minimize friction between the plunger and seal and between the plunger and guidance bearing. Furthermore, the seal assembly is manufactured by pressing the guidance bearing into the seal carrier, and then machining the bore in the guidance bearing and in the seal carrier in the same setup, thereby improving the alignment of the elements and simplifying manufacturing.
Patent CA-2305115-A1 (CA)
Title: High gloss coated paper
Inventor: SCHULTZ JAMES E
IPC: D21H19/38
Filed: 2000-04-12
Abstract: A coated paper product having high gloss and brightness is prepared by a process wherein a paper substrate is coated on at least one side with an aqueous coating formulation comprising an effective amount of a plastic pigment, and finished in a supercalender device containing heated rolls to produce a surface which is comparable to a cast coated surface.
Patent CA-2305808-A1 (CA)
Title: Amidocarboxylic acid derivatives
Inventor: YANAGISAWA HIROAKI
IPC: C07D213/20
Filed: 1998-09-30
Abstract: Amidocarboxylic acid derivatives represented by general formula (I), pharmacologically acceptable salts thereof, or pharmacologically acceptable esters thereof, wherein R1 represents a hydrogen atom or the like; R2 represents an alkylene group; R3 represents a hydrogen atom or the like; R4 represents a hydrogen atom or the like; X represents a substituted or unsubstituted aryl group or the like; Y represents an oxygen atom or the like;  Z represents an alkylene group or the like; and W represents an alkyl group or the like. These compounds are useful as therapeutic and or prophylactic agents for diabetes, hyperlipemia, arterial sclerosis, hypertension and the like.
Patent CA-2307220-A1 (CA)
Title: Kits containing cyanoacrylate compositions comprising an antimicrobial agent
Inventor: LEE CONNIE C
IPC: A61K9/70
Filed: 1998-11-03
Abstract: Disclosed are kits of parts comprising a first container comprising a cyanoacrylate composition and a second container comprising a compatible antimicrobial agent and, in particular, a compatible iodine containing antimicrobial agent. Mixture of these compositions provide for in situ formation of an antimicrobial polymeric cyanoacrylate film on mammalian skin.
Patent CA-2307962-A1 (CA)
Title: Feed mixer rotor having a feed directing front edge plow
Inventor: LOEWEN ERNEST ANTON
IPC: B01F7/00
Filed: 2000-05-10
Abstract: The invention pertains to a rotor in an agricultural feed mixer used in preparation of livestock feed, the mixer being of the type having an open topped tub defining therein an upper circular surface of a flat bottom above which is mounted the rotor for rotation about a vertical central axis. The rotor includes a central column with a flighting spiralling about the column from a lower forward edge to an upper trailing edge and providing an upper feed conveying surface inclined upwardly continuously from the forward edge. The forward edge is disposed a short distance above the upper surface of the bottom and extends inwardly from an outer point at an outer periphery of the flighting to an inner point at an outer surface of the column. At least a portion of the forward edge deviates rearwardly in relation to direction of rotation from a radial line extending from the central axis of the rotor to the outer point at the outer periphery. A  feed directing plow is located in front of the forward edge and is slanted upwardly from a lower edge proximate the upper surface of the bottom to the forward edge of the flighting at a steeper inclination than that of the flighting. The engagement of a front face of the feed directing plow deflects the flow of feed upwardly and slightly inwardly towards the central column to accomplish thorough mixing quickly while making efficient use of input power.
Patent CA-2308214-A1 (CA)
Inventor: OLIVER JAY T
IPC: B29C43/36
Filed: 2000-05-12
Abstract: A press plate for producing decorative laminate from resin impregnated paper, with alumina particles on its pressing surface, is coated with diborides selected from the group consisting of hafnium diboride, molybdenum diboride, tantalum diboride, titanium diboride, tungsten diboride, vanadium diboride, or zirconium diboride or mixtures thereof for making the press plate resistant to scratching. The preferred diborides are titanium and zirconium. The most preferred diboride is titanium. The color, gloss and surface appearance of laminate pressed with a titanium diboride coated press plate is substantially the same as laminate pressed with the press plate before coating.
Patent CA-2311396-A1 (CA)
Title: Pluripotent embryonic stem cells and methods of obtaining them
Inventor: LORING JEANNE F
IPC: A01K67/027
Filed: 1998-11-25
Abstract: The present invention provides an isolated population of non-mouse embryonic stem (ES) cells and methods of obtaining these ES cells. In one aspect, the target ES cells are obtained by co-culturing embryo cells from a target animal with non-target ES cells, such as mouse ES cells. In one embodiment, rat ES cells are isolated from the co-culture using positive or negative selectable markers. The invention also includes genetically modified non-mouse ES cells. Chimeric embryos and animals containing isolated populations of the ES cells or genetically modified ES cells are also provided. In one embodiment, the genetic modification comprises introduction of a transgene. In another embodiment, the genetic modification comprises disruption of the function of one or more genes.
Patent CA-2312186-A1 (CA)
Inventor: GIROUARD ERICK
IPC: F02M21/02
Filed: 2000-06-23
Abstract: The present invention provides a valve for controlling flow of gas from a pressure vessel comprising a fluid passage, a first valve seat mounted in the fluid passage and including an orifice, a sleeve including a second valve seat and an orifice opening into the pressure vessel, a secondary piston slidably carried within the sleeve and including a first sealing surface for closing the orifice of the first valve seat, a bleed passageway extending through the secondary piston, and a third valve seat including an orifice opening into the bleed passageway, and a primary piston slidably carried within the same sleeve and including a second sealing surface for closing the orifice of the third valve seat of the secondary piston, and a third sealing surface for closing the orifice of the sleeve. The secondary piston can further include a body such that the bleed passageway is formed within the body. The bleed passageway can communicate with the fluid passage. A  biasing means can be provided for biasing the primary piston towards the secondary piston. The sleeve can further comprise sidewalls extending from the valve seat and terminating at a distal end to define an opening at the distal end. The body of the secondary piston can include a periphery wherein a sealing member is carried at the periphery of the body between the body and the sleeve, thereby preventing gas from flowing between the periphery of the body and the sleeve. The primary piston can be biased towards the first position by a resilient member, such as a spring means. The valve can further comprise an outlet port and a first throughbore, wherein the first throughbore extends from the outlet port to the orifice of the first valve seat, and a manual override valve is disposed between the orifice of the first valve seat and the outlet port for selectively sealing the flow passage. The secondary piston can comprise a first part and a second part such that the first part comprises a non-magnetic material and the second part comprises magnetic material.
Patent CA-2312342-A1 (CA)
Inventor: FORCE CLAUDE
IPC: H04J3/16
Filed: 1998-11-13
Abstract: The invention concerns a radio-relay station made compatible with the transmission of any selected group among a group of plesiochronous signals with multiplexer (SE1, SE2, SE3) with substantially mutually multiple speeds, so as to include in the station programmable circuits common to the groups, independently of the multiplex signal speed resulting from the multiplexing. A  frame of predetermined duration is formed by synchronising the plesiochronous signals in the selected group into syncchronous signals (SY1, SY2, SY3) with mutually multiple speeds, by assigning to each synchronous signal a number of patterns of predetermined structure in the frame equal to the whole part of the quotient of the division of the synchronous signal by the smallest speed of the plesiochronous signal, and by inserting into each pattern bits of the respective synchronised signal in predetermined number and supplementary bits (BS) in predetermined number.
Patent CA-2314376-A1 (CA)
Title: Heater/blower unit with load control
Inventor: ZIAIMEHR ALLEN HAMID
IPC: G05D23/19
Filed: 2000-07-24
Abstract: A substantially constant load impedance electrical heater has been provided. The heater is comprised of two sections, a first heater and a second heater. The first heater is continuously "on" to provide the bulk of the heat. A second heater is selectively engaged to provide slightly more heat to the medium, heating the medium to the desired temperature. The output temperature of the heated medium is maintained by controlling the duty cycle of the second heater. More drastic changes in temperature are accomplished by changing the power continuously dissipated by the first heater. The greatest heating control is obtained by defining the first and second heaters as subsets from a bank of selectable heater elements. A method of minimizing fluctuations in the loading of a high-wattage electrical device is also provided.
Patent CA-2315589-A1 (CA)
Title: Silicone foam control agent
Inventor: L HOSTIS JACQUELINE
IPC: C11D3/16
Filed: 2000-08-11
Abstract: A foam control agent, comprising (A) an organopolysiloxane material having at least one silicon-bonded substituent of the formula X-Ph, wherein X denotes a divalent aliphatic organic group bonded to silicon through a carbon atom and Ph denotes an optionally substituted aromatic group, (B) a water-insoluble organic fluid, (C) an organosilicon resin and (D) a hydrophobic filler. The foam control agent may be provided as an emulsion or as a particulate material. It is especially useful as a detergent foam control agent.
Patent CA-2317185-A1 (CA)
Title: Vehicle carrying rail road car structure
Inventor: FORBES JAMES W
IPC: B61D3/18
Filed: 2000-08-30
Abstract: A rail road car has a deck for carrying wheeled vehicles. The car has deck access fittings mounted between the trucks near a collapsible hitch to provide acce ss to the highway trailer landing gear crank, and flush mounted internal bridge plates . The rail road car has side sills having flared ends to act as a guide for the highway  trailers as they are backed up. The hitch is trimmed to a relatively narrow width to lessen t he likelihood of fouling the tyres of the highway trailer bogies. The car has intermediate  bridge plates having a flush mounted portion to facilitate hostler truck operation. The ca r includes dual use cross-beams suitable for supporting the deck, acting as jacking bea ms to permit the car to be lifted, and as container pedestal support beams, if required.< /SDOAB>
Patent CA-2317653-A1 (CA)
Inventor: GALLANT PAUL L
IPC: G01N33/50
Filed: 1999-01-08
Abstract: The invention comprises methods useful within a larger process for identifying compounds and/or designing further compounds with activity to produce a desired phenotype (for example, growth inhibition) in cells whose target cell component is the subject of certain studies to identify such compounds. The invention employs constructed cells comprising a regulable gene encoding a biomolecule which modulates (inhibits or activates) in vivo the function of a target component of the cell which can be an enzyme for example. The process incorporates methods for identifying biomolecules that bind to a chosen target cell component in vitro, methods for identifying biomolecules that also bind to the chosen target and modulate its function intracellularly, causing a phenotypic effect. The intracellular effect of a biomolecule can be tested in cell culture, or tested after introduction of the constructed cells into a host mammal in vivo, and methods for identifying compounds that compete with the biomolecules for sites on the target in competitive binding assays. Compounds identified by the series of steps in this process are candidates for drugs with the desired activity on the cell. Targets for which such compounds can be identified are validated as being essential to a phenotype of the cell.
Patent CA-2320116-A1 (CA)
Title: 2-aminoquinoline derivatives having d4-agonistic activity
Inventor: VAN STEEN BARTHOLOMEUS J
IPC: A61K31/4709
Filed: 1999-02-05
Abstract: The present invention relates to a group of novel 2-aminoquinoline derivatives which are potent and selective agonists of the dopamine D4-receptor. The compounds have general formula (I) wherein (R1)n represents 1 or 2 substituents, which can be the same or different, from the group C1-3-alkyl or alkoxy, halogen, trifluoromethyl, nitro, amino, and mono- or dialkyl (C1-2)-amino, or two groups R1 at adjacent carbon atoms together with the benzene ring may form the benzdioxane group or benzofuran group, X represents nitrogen or carbon, and the dotted line may represent a double bond, (R2)p represents 0, 1 or 2 substituents, which can be the same or different, from the group methyl and ethyl, or (R2)p is a methylene bridge or ethylene bridge, R3 is hydrogen or methyl, and (R)m represents 0, 1, or 2 substituents, which can be the same or different and can be located at all available positions of the quinolyl group, from the group C1-3-alkyl or alkoxy, halogen, trifluoromethyl, nitro, amino, and mono- or dialkyl (C1-2)-amino, on the understanding that R1 cannot represent o-OCH3 when X is nitrogen, (R2)p and R3 are hydrogen, m is 0 and n is 1.
Patent CA-2320611-A1 (CA)
Title: Pre-mixing chamber for gas turbines
Inventor: MEI LUCIANO
IPC: F23R3/30
Filed: 2000-09-21
Abstract: A pre-mixing chamber (10) for gas turbines, wherein the gas turbine is of the type which comprises at least one compressor connected to the turbine, and a combustion chamber, wherein the combustion chamber has a converging portion (12), positioned such as to give rise to combustion inside the combustion chamber, and wherein the pre-mixing chamber (10) has a plurality of pipes (19) provided with holes (20), which open into the combustion chamber on a front portion of the body of the pre-mixing chamber (10), in order to generate a series of pilot flames, which are appropriately regulated, in order to stabilise a main flame, which is primed inside the combustion chamber, in which a front area of the converging portion (12) of the pre-mixing chamber (10) has at least one circular groove (28) provided at the holes (20) which belong to the pipes (19).
Patent CA-2320828-A1 (CA)
Inventor: WANG JIN
IPC: G01N31/22
Filed: 1999-02-25
Abstract: A method for the determination of hexavalent chromium (CrVI) in environmental and industrial hygiene samples is provided. Based on the chemical properties of chromium species in aqueous solutions, a simple, fast, sensitive, and economical field method has been developed and evaluated for the determination of hexavalent chromium (CrVI). By means of ultrasonic extraction in combination with a strong anion exchange solid phase extraction (SAE-SPE) technique, the filtration, preconcentration, and isolation of CrVI in the presence of other chromium species and interferents was achieved. The method generally involves: (1) ultrasonication in basic buffer solution to extract CrVI from environmental matrices; (2) strong anion exchange solid phase extraction to separate CrVI from other chromium species and potential interferents; (3) acidification of the eluate containing the CrVI ions; (4) complexation of CrVI with a complexing agent to form a soluble, colored CrVI-complex; and (5) spectrophotometric determination of the colored CrVI-complex.  Preferably, the ultrasonication step is carried out in the presence of a slightly basic ammonium buffer and the complexing agent is 1,5-diphenylcarbazide.
Patent CA-2322006-A1 (CA)
Title: Apparatus and method for recording optical information, apparatus and method for reproducing optical information, apparatus for recording/reproducing optical information, and optical information recording medium
Inventor: HORIMAI HIDEYOSHI
IPC: G11B7/24
Filed: 1999-02-26
Abstract: A compact optical system for multiple information recording/reproducing utilizing holography. An optical information recording/reproducing apparatus comprises a pickup (11), in which a light modulator (18) generates information light by spatially modulating the laser beam emitted from a light source (25) according to information to be recorded, and a light modulator (17) produces recording reference light by spatially modulating the phase of the laser beam emitted from the light source (25). The information light and the reference light are focused on different points on a recording medium (1), and a hologram layer (3) stores information in the form of interference patterns created by the interference between the reference light and the information light reflected by a reflection film (5). The information light and the reference light are positioned according to information in an address servo area (6).
Patent CA-2323093-A1 (CA)
Title: Composes et methodes therapeutiques et diagnostiques du cancer du poumon
Inventor: WANG TONGTONG
IPC: C12Q1/68
Filed: 1999-03-17
Abstract: L'invention concerne des composés et méthodes destinés au traitement et au diagnostic du cancer du poumon. Les composés de l'invention comprennent des polypeptides contenant au moins une portion d'une protéine de tumeur pulmonaire. L'invention concerne encore des compositions vaccinales et pharmaceutiques destinées à l'immunothérapie du cancer du poumon et comprenant de tels polypeptides, ou des molécules d'ADN codant de tels polypeptides, ainsi que des molécules d'ADN servant à la préparation des polypeptides de l'invention.
Patent CA-2323583-A1 (CA)
Inventor: TIFFANY HARRY J III
IPC: B42D15/10
Filed: 1999-03-16
Abstract: Smart cards employing ITA-based circuits (22A-22D) can be made by associating a splitter edge material (52) with the ITA-based circuit (22A-22D) in order to direct an incoming stream (12) of thermosetting polymeric above (12A) and below (12B) the ITA-based circuit (22A-22D).
Patent CA-2323894-A1 (CA)
Title: Casting materials for producing shaped parts for sanitary appliances
Inventor: WILHELM THOMAS
IPC: C08F285/00
Filed: 1999-02-20
Abstract: The invention relates to a casting material for producing shaped parts for sanitary appliances, comprising a methyl methacrylate-based syrup and 50-85 % (in relation to the casting material) of an inorganic filler. The aim of the invention is to improve the scratch resistance and resistance to abrasion of the parts produced with this casting material.  To this end, the inventive casting material also comprises 5 wt.%  to < 20 wt.% (in relation to the mass of the syrup) elastomer particles or elastomer particle agglomerates with a particle size < 100 µm.
Patent CA-2324330-A1 (CA)
Inventor: OKA TETSUO
IPC: C07D211/52
Filed: 2000-10-26
Abstract: Described is a 4-hydroxy-4-phenylpiperidine derivative represented by the following formula (1): (see formula I) [wherein, R1 and R2 are the same or different and each independently represents a hydrogen atom, a lower alkyl, or the like, R3 represents a hydrogen atom or a group -(CR4R5)n-Y (in which, R4 and R5 each represents a hydrogen atom or a lower alkyl group, Y represents a group -COOR6, -CONR7R8, -OR9 or -OCOR10 (in which R6, R9 and R10 each independently represents a hydrogen atom, a lower alkyl group, or the like, R7 and R8 are the same or different and each independently represents a hydrogen atom, a lower alkyl group, or the like), and n stands for 1 to 6)], or salt thereof.      The compound exhibits excellent peripheral analgesic action.
Patent CA-2324781-A1 (CA)
Inventor: ROTH NEIL A
IPC: B66C3/00
Filed: 2000-10-31
Abstract: An improved braked or snubbed joint assembly for use for supporting a grapple, clam shell or like device, is disclosed. The present braked or snubbed joint assembly includes a first member including an element defining an elongate cylindrical bore therethrough having a central axis, and first and second outwardly tapered or conical convex axial end faces. A second member having first and second arms defining a space therebetween receives the first member and an axial pin rotatably joins the first member and the second member. The second member includes an element located in the space which has a correspondingly tapered or conical concave axial end face positioned in spaced opposed relation to the first outwardly tapered or conical convex axial end face and the second arm includes an element located in the space which has a correspondingly tapered or conical concave axial end face positioned in spaced opposed relation to the second outwardly tapered or conical convex axial end face.      Frictional brake elements are disposed between the opposed axial end faces for fractionally resisting or braking relative rotation of the first and second members.
Patent CA-2329816-A1 (CA)
Title: Wafer holder for semiconductor manufacturing apparatus, method of manufacturing wafer holder, and semiconductor manufacturing apparatus
Inventor: KUIBIRA AKIRA
IPC: C04B41/52
Filed: 2000-12-28
Abstract: A wafer holder for a semiconductor manufacturing apparatus that has a high heat conductivity and includes a conductive layer such as heater circuit pattern which can be formed with a high precision pattern, a method of manufacturing the wafer holder, and a semiconductor manufacturing apparatus having therein the wafer holder are provided. On a surface of a sintered aluminum nitride piece, paste containing metal particles is applied and fired to form a heater circuit pattern as a conductive layer. Between the surface of the sintered aluminum nitride piece having the heater circuit pattern formed thereon and another sintered aluminum nitride piece, a glass layer is provided as a joint layer to be heated for joining the sintered aluminum nitride pieces together.
Patent CA-2330988-A1 (CA)
Title: System and method for enhancing inter-site forward traffic capacity for a soft hand-off
Inventor: MONIN JEFFREY
IPC: H04J13/00
Filed: 2001-01-15
Abstract: A system and method for enhancing inter-site traffic capacity for a soft hand-off reduces the requisite communications capacity on a forward path between the mobile switching center and the base station controller. A base station controller receives an original data packet for a forward path transmission to a mobile station over the forward path between the mobile switching center and the base station controller. The base station controller copies the original data packets to generate distributional data packets if the mobile station is in a soft hand-off. The distributional data packets are sent to corresponding base stations participating in the soft hand-off.