baber/WOPTO huggingface dataset:
Patent CA-2082674-C (CA)
Inventor: AGRAWAL RAKESH
IPC: F25J3/04
Filed: 1992-11-12
Granted: 1995-08-01
Abstract: The present invention is an improvement to a process for the cryogenic distillation of air to produce both nitrogen and oxygen products carried out in a single distillation column system wherein a feed air stream is distilled thereby producing a nitrogen overhead and a liquid oxygen bottoms. The improvement is characterized in that: (a) operating the single distillation column at a pressure between 70 and 300 psia [480 and 2,070 kPa(absolute)]; (b) withdrawing a portion of the liquid oxygen bottoms having an oxygen concentration greater than 80% oxygen and preferably between 85% and 97% oxygen from the bottom of the single distillation column and reducing the pressure of and vaporizing the withdrawn liquid oxygen by heat exchange against a condensing nitrogen stream removed from a top section of the single distillation column; (c) feeding the condensed, nitrogen stream to a top section of the single distillation column as reflux; and (d) recovering the vaporized oxygen as at least a substantial portion of the oxygen product. The improvement can be further characterized by providing boilup by boiling at least another portion of the liquid oxygen bottoms by heat exchange against a condensing vapor stream, wherein the vapor stream to be condensed is an air stream at a higher pressure than the feed air stream or a recycle nitrogen stream at a pressure greater than the operating pressure of the single distillation column, or by recycling a portion of the oxygen product at a pressure of at least the operating pressure of the single distillation column to the bottom of the distillation column and/or by providing intermediate boilup to the stripping section of the single distillation column system by vaporizing a portion of descending column liquid by heat exchange against another condensing vapor stream, wherein the other vapor stream to be condensed is either an air stream at a higher pressure than the feed air stream or a recycle nitrogen stream at a pressure greater than the operating pressure of the single distillation column. The process of the present invention is particularly suited to integration with gas turbines.
Patent CA-2083926-C (CA)
Inventor: CHOQUETTE EMILE
IPC: E05B17/20
Filed: 1992-11-24
Granted: 2000-01-11
Abstract: A latch for securing adjacent structures, for example, doors or gates, includes a bolt assembly to be secured to one of the structures and a keeper to be secured to the other adjacent structure. The bolt assembly includes a bolt having a keeper engaging end, a handle, and a support which allows attachment of the bolt assembly to the one structure. The support contains a retaining bracket to allow sliding of the bolt between latched and unlatched positions. The keeper has an abutment surface to receive the keeper engaging end of the bolt in the latched position and a stop which engages the keeper engaging end of the bolt to prevent the bolt from sliding to the unlatched position. Either of the bolt assembly or the keeper may be installed on either of the adjacent structures.
Patent CA-2085425-C (CA)
Title: Down-the-hole drill
Inventor: EKWALL BERNDT
IPC: E21B4/14
Filed: 1992-12-15
Granted: 2003-07-15
Abstract: Down-the-hole drill comprising a housing (1), a hammer piston (6) movable to-and-fro in the housing and intended for impacting a drill bit (5). A back piece (3) provided with an extension (12) with a valve part (17) cooperates with a part (8) of a central channel in the hammer piston. This part of the central channel comprises a zone (16) with larger diameter than adjacent parts at an intermediate part of this part. This results in that pressure medium can pass the valve part when it is situated at the zone and that the valve part and the hammer piston sealingly cooperate when the valve part is on either side of the zone.
Patent CA-2085600-C (CA)
Inventor: RICHES DAVID
IPC: A62B35/04
Filed: 1992-05-20
Granted: 1997-12-16
Abstract: L'invention a trait à un dispositif de sécurité composé d'un rail de sécurité (1) qui est fixé de façon éloignée à un bâtiment ou un autre objet fixe par des supports (5) situés à des intervalles le long du rail. Un composant (7), auquel peut être attaché le cordon d'arrimage d'un travailleur, peut glisser le long du rail. L'élément de glissement (7) comprend un tube (20) qui est vissé au rail de sécurité (1) et a une fente longitudinale (22) qui permet le déplacement du tube sans être arrêté par les supports du rail (5). Un lien (21) de connexion au cordon d'arrimage du travailleur est relié par un pivot à la paroi du tube (20) dans une position telle que l'effort d'une force de traction vers le bas s'exerçant sur le maillon (21) fait tourner le tube dans une position dans laquelle la fente (22) s'ouvre généralement latéralement par rapport au rail de sécurité (1).
Patent CA-2086601-C (CA)
Inventor: BILLINGHAM PAUL RICHMOND
IPC: B65D21/024
Filed: 1990-12-21
Granted: 2000-08-15
Abstract: Boîte de rangement pour documents, dossiers ou analogue, comportant un corps généralement rectangulaire (2) dont un côté est ouvert pour permettre l'accès et incliné par rapport au côté opposé. Trois des bords latéraux de l'ouverture portent des brides internes, et un couvercle légèrement plus petit (4), dont la forme est adaptée à la boîte, est monté par l'intermédiaire de charnières sur le quatrième bord (6) ou sur le bord d'une pièce d'insertion (30) servant à diviser en sections l'intérieur de ladite boîte. La pièce d'insertion peut diviser l'intérieur en au moins deux sections en fonction de l'usage que l'on veut faire de la boîte.
Patent CA-2092858-C (CA)
Title: Severable cover for explosion and fire suppression nozzles
Inventor: NORMAN JAMES M
IPC: A62C31/28
Filed: 1993-03-29
Granted: 1999-11-16
Abstract: A fire or explosion suppression system provided with a source of pressurized suppressant and an apertured release suppressant nozzle which extends into the area protected by the system is provided with a cover unit which prevents the nozzle from becoming clogged or impeded by solid materials present in the protected zone. The cover unit that envelops the nozzle is of elastomeric material and has four internal grooves defining lines of weakness which present a cross-pattern. Upon release of the suppressant, the cover unit ruptures along the lines of weakness whereby the petal-shaped areas of the unit defined by the grooves open up for free flow of suppressant therepast.
Patent CA-2097129-C (CA)
Inventor: OSTRAND DALE
IPC: B60P3/10
Filed: 1993-05-27
Granted: 1996-06-04
Abstract: A boat trailer  comprises a rectangular rear frame section and a forwardly extending hitch bar.  On the rear frame section is mounted a pair of  longitudinally extending bunks onto which the boat can rest during transportation to avoid pressure points.  Inside the bunks toward a longitudinal centre line of the trailer is provided two pairs of roller assemblies which can be raised to a position to hold the boat above the bunks  for  loading  and  unloading  and  can  be  lowered  to a position  in  which  the  boat  is  lowered onto  the bunks  and separated from the  rollers  to avoid pressure points during transportation.  The roller assemblies are commonly actuated by a linear actuator arrangement at the front of the hitch bar.          Each  roller  assembly  includes  four  rollers  independantly pivotal to allow the rollers to follow the contour of the boat.          At a forward end of the hitch bar is mounted a security leg which can extend along the underside of the hitch bar or can be moved downwardly to a deployed position in which it raises the hitch bar above the normal hitch position so as to incline the trailer  rearwardly  and  can  be  locked  in that position to prevent the hitch being used.
Patent CA-2099138-C (CA)
Inventor: HASHIMOTO NOBUKAZU
IPC: C12N9/20
Filed: 1993-06-25
Granted: 1998-09-22
Abstract: A crystallizable, purified chondroitinase ABC having a molecular weight of about 100,000 dalton by the measurement of the SDS-polyacrylamide gel electrophoresis (SDS-PAGE) and the measurement by the gel permeation chromatography method, having alanine as the N-terminal amino acid and proline as the C-terminal amino acid.   A process for the purification of the crystallizable purified chondroitinase ABC comprising removing nucleic acid from an  surfactant solution  extract  obtained  from  cells  of chondroitinase    ABC-producing microorganisms    and chromatographically treating by concentration gradient elution using a weak cation exchange resin or a strong cation exchange resin.   A composition comprising a chondroitinase and serum albumin, gelatin, or a nonionic surfactant.
Patent CA-2117327-C (CA)
Inventor: LYNUM STEINAR
IPC: B29L23/00
Filed: 1992-12-11
Granted: 1999-01-19
Abstract: In order to enrich natural gas or other hydrocarbon gases with hydrogen, thus reducing the carbon content and thereby achieving a reduction or elimination of the discharge of carbon dioxide during combustion of the gases, a pyrolytic process is conducted in the feed stream for the natural gases or hydrocarbon gases which are to be burned. The gas is passed through a reactor in which it is decomposed at least partially into a carbon constituent and a hydrogen constituent. The carbon constituent is removed to a desired level. Any remaining constituent together with the hydrogen constituent is conveyed to the combustion process while the removed carbon constituent is conveyed out of the process for separate application. The pyrolytic process can be carried out on the entire stream or only on a partial stream.
Patent CA-2120368-C (CA)
Inventor: MURRAY DOUGLAS J
IPC: E21B41/00
Filed: 1993-08-06
Granted: 1999-11-30
Abstract: In accordance with the present invention, a plurality of methods and devices are provided for solving important and serious problems posed by lateral (18) (and especially multilateral) completion in a wellbore (10) including methods and devices for sealing the junction between a vertical (10) aad lateral (23) well. Methods are disclosed wherein deformable devices (35) are utilized to selectively seal the juncture between the vertical (10) and lateral (23) wells. Such deformable devices (35) may comprise (1) an inflatable mold which utilizes a hardenable 1qiuid (e.g., epoxy or cementious material slurry) to form the seal; (2) expandable memory metal devices; and (3) swaging devices for plastically deforming a sealing material.
Patent CA-2122500-C (CA)
Inventor: CLARK ROGER WILLIAM
IPC: B65D1/02
Filed: 1994-04-29
Granted: 2005-07-12
Abstract: The present invention relates to a plastics container comprising a neck and an outlet opening, a container body and a base; said base comprising a plurality of circumferentially spaced legs, each said leg terminating in a foot portion on which the container is adapted to stand wherein each leg is provided with at least one longitudinally inwardly extending crease.      Preferably each leg is provided with a single crease which extends downwardly and inwardly at least to the extent necessary so to substantially divide the foot portion of each leg into two separate support portions on which the container is adapted to stand.
Patent CA-2123056-C (CA)
Inventor: LIPPMANN ALFRED
IPC: B01D53/34
Filed: 1994-05-06
Granted: 2005-10-04
Abstract: In the device for selective non-catalytic reduction of nitrogen oxides, a liquid nitrogen-containing reducing agent is sprayed through two-component lances into a stream of hot flue gases. Spraying occurs in pulsatory operation at a frequency of 5 to 70 per second, preferably 10 to 20 per second. As a result of this mode of operation, a spray cone of relatively coarse long-range drops and a spray cone of relatively fine short-range drops are produced alternately at each two-component nozzle. The reducing agent is ammonia dissolved in water (ammonia solution) at flue-gas temperatures of 1060°C to 1170°C. The device for working the method comprises a flue-gas duct 3 incorporating a number of two-component lances 4 operated by a pressure medium. The liquid and gas feed pipes for each two-component nozzle lance 4 are connected to a first resonance chamber 15 disposed in the two-component nozzle and upstream of at least one additional resonance chamber 18 separated from the first resonance chamber 15 by a restrictor 17. The last resonance chamber 18, considered in the direction of flow, is then directly connected to the outlet opening 19 of the two-component nozzle.
Patent CA-2133903-C (CA)
Inventor: TAKE SHIGEO
IPC: G01P1/07
Filed: 1994-10-20
Granted: 1999-12-21
Abstract: The invention provides a counter for determining engine revolutions and displaying various operational mode data such as lap time and split time. The counter comprises a mount attachable to a fixed support member, the mount having first electric source terminals for the supply of electric power. A plurality of first measuring-mode setting terminals are connected to external switches. A housing body has a plurality of mode-setting switches arranged about its periphery and a display panel on its front face. Means within the body determine the revolutions of the engine, and second mode-setting terminals are connectable to each of the first electric source terminals and to the first measuring-mode setting terminals. The mount and the housing have cooperating thread members for detachably connecting them.
Patent CA-2134159-C (CA)
Inventor: BURKARD CHRISTOPHER JOSEPH
IPC: H01R4/24
Filed: 1994-10-24
Granted: 2004-04-20
Abstract: A clip for forming an electrical and mechanical connection at the junction of two rods to afford cathodic protection for said rods. The clip is electrically conductive and can have a sacrificial metal coating or metal insert protecting the rods of a grid and the method of making a reinforcing grid.
Patent CA-2135768-C (CA)
Title: Indolocarbazole imides and the use thereof
Inventor: KLEINSCHROTH JURGEN
IPC: C07D/
Filed: 1993-05-28
Granted: 2004-11-23
Abstract: The present invention is concerned with the use of indolocarbazole imides of the general formula (I):   (see formula I) for the preparation of pharmaceutical compositions for the treatment and/or prevention of cancer, virus diseases (for example HIV infections), heart and blood vessel diseases (for example high blood pressure, thromboses, heart rhythm disturbances and atheroscleroses), bronchopulmonary diseases, degenerative diseases of the central nervous system (for example Alzheimer's disease), inflammatoryl diseases (for example rheumatism and arthritis), diseases of the immune system (for example allergies), as well as psoriasis and for use as immune suppressives; as well as new compounds of general formula (I).
Patent CA-2137122-C (CA)
Inventor: COMTE MARIE J M
IPC: C03C3/085
Filed: 1994-12-01
Granted: 2004-06-15
Abstract: The present invention relates to the production of lead-free glasses exhibiting densities of at least 2.9 g/cm3 and refractive indices of at least 1.545 which consist essentially, in weight percent, of SiO2           51-63   Al2O3             0-5 Li2O           0-3     ZrO2              0-6 Na2O           0-8     SiO2+Al2O3+ZrO2   55-66 K2O            0-12    TiO2              0-3 Li2O+Na2O+K2O  7-15    CaO               0-5 SrO          0-<8    MgO               0-3 BaO            >13-21  B2O3      0-3 ZnO            5-15    La2O3             0-8 SrO+BaO+ZnO    27-34
Patent CA-2140263-C (CA)
Inventor: HANSEN MICHAEL R
IPC: D04H1/64
Filed: 1993-08-16
Granted: 2005-09-13
Abstract: A binder is applied to fibers (600) to bind particles (602) to the fibers. The fibers have hydrogen bonding functional groups. The particles have functional groups capable of forming a hydrogen bond or a coordinate covalent bond. The binder comprises binder molecules, wherein the binder molecules have at least one functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and at least one functional group that forms a hydrogen bond with the fibers. A  substantial portion of the particles that may be adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder in turn may be adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.
Patent CA-2140298-C (CA)
Title: Rumen by-pass feed supplement
Inventor: MEADE THOMAS L
IPC: A23K1/18
Filed: 1995-01-16
Granted: 1998-12-08
Abstract: Disclosed is a rumen by-pass feed supplement containing a matrix of up to about 70% by weight of at least one biologically active material susceptible to inactivation in the rumen, and a protective substance which is at least one highly hydrogenated aliphatic fatty acid having from 14-20 carbon atoms, in an amount effective to coat substantially the biologically active material and thereby prevent the material from being inactivated in the rumen of the ruminant.
Patent CA-2145376-C (CA)
Title: Graft copolymers of propylene polymer material impact modified with a heterophasic olefin polymer material
Inventor: SMITH JEANINE A
IPC: C08L23/18
Filed: 1995-03-23
Granted: 2002-10-22
Abstract: Disclosed are polyolefin compositions comprising (A) a graft copolymer of a propylene polymer material, (B) a heterophasic olefin polymer material and, optionally, (C) an ungrafted propylene polymer material.
Patent CA-2146546-C (CA)
Title: Antenna array with a continuous transverse stub element
Inventor: MILROY WILLIAM W
IPC: H01Q21/00
Filed: 1994-09-19
Granted: 1998-11-17
Abstract: A dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces. The exterior is uniformly conductively coated resulting in a parallel plate waveguide having a continuous transverse stub element disposed adjacent one plate thereof. Purely reactive elements are formed by leaving the conductive coating on the terminus of the stub element, or by narrowing the terminus of the stub element. Radiating elements are formed when stub elements of moderate height are opened to free space. Radiating, coupling and/or reactive continuous transverse stub elements may be combined in a common parallel plate structure in order to form a variety of microwave, millimeter wave and quasi-optical component including integrated filters, couplers and antenna arrays. Fabrication of the dielectrically-loaded continuous transverse stub element can be efficiently accomplished by machining, extruding or molding the dielectric structure, followed by uniform conductive plating in order to form the parallel plate transmission line. In the case of antenna applications, machining or grinding is performed on the stub terminus to expose the dielectric material at the end of the stub element.
Patent CA-2149077-C (CA)
Inventor: ALLAIN MARCEL
IPC: B60R1/06
Filed: 1995-05-10
Granted: 2000-04-11
Abstract: A wiper accessory for a side mounted rear view mirror of a vehicle, comprising; a wiper blade, a drive module having a rotary drive and a flexible pantograph arm for moving the wiper blade in a reciprocal movement across the reflective surface of the rear view mirror, and an auxiliary minor mounted on the drive module for advantageously use the sightless area adjacent the side mounted rear view mirror. The drive module further has a U-shaped bracket comprising an horizontal member having one hole for mating onto a vertical mounting bolt of the rear view mirror in a rotatively adjustable manner about an axis defined by the bolt, and two spaced apart vertical members having each a retaining pivot horizontally in line with one another for retaining the drive module of the wiper accessory in a rotatively adjustable manner about an axis defined by the alignment of the two retaining pivots. The advantage of this U-shaped mounting member and the flexible pantograph arm is that both the auxiliary mirror and the side mounted rear view mirror are independently adjustable to different view points without adversely affecting the operation of the wiper accessory.
Patent CA-2151071-C (CA)
Inventor: LAMPERT NORMAN ROGER
IPC: G02B6/38
Filed: 1995-06-06
Granted: 1999-01-05
Abstract: A bend-limiting apparatus for attachment to an optical connector has a generally cylindrical shape and includes an axial bore along its central axis for holding an optical cable. The front end of the bend-limiting apparatus attaches to the optical connector and has an outside diameter which is comparable in size to theconnector. The back end of the bend-limiting apparatus has an outside diameter which is comparable in size to the optical cable. The bend-limiting apparatus is made from a flexible material which is sufficiently stiff to accommodate heavy side loads, but includes a number of grooves that are exclusively positioned on its back half to accommodate light side loads. These grooves preferably extend from an outside surface of the apparatus into the axial bore, and also extend in a circumferential direction at least part way around the apparatus. Such a design effectively limits the minimum bend radius of an optical cable over a wide range of side loads.
Patent CA-2151346-C (CA)
Inventor: EDWARDS RUSSELL JAMES
IPC: B65B7/28
Filed: 1995-06-08
Granted: 2007-03-20
Abstract: An apparatus for the processing and segmenting of a cover-forming laminate web or sheeting structure which is adapted to interconnect a plurality of containers, such as the base members of blister packages each of which is designed to contain a hydrophilic contact lens in a sterile aqueous solution. More specifically disclosed is an apparatus for the imprinting, perforating, slitting and cutting the laminated web structure such that the severed laminate segments constitute printed covering label for an array of such containers, and whereby the laminated web or sheeting segment may be severed along weakening or perforation lines so as to provide a separable packaging arrangement for individual of the containers which are subsequently adhered thereto.
Patent CA-2154863-C (CA)
Title: Powdered varnish and its use for coating the insides of packaging containers and for covering weld seams
Inventor: JANDEL LOTHAR
IPC: C09D167/00
Filed: 1991-11-06
Granted: 1999-09-07
Abstract: A powder coating for the coating of packaging container weld seams based on epoxy resins and carboxyl-containing polyesters, wherein 1. the powder coating contains A) at least one polyester having an acid value of 25 to 120 mg of KOH/g and an OH value ~ 10 mg of KOH/g, and B) at least one epoxy resin having an epoxide equivalent weight of 400 to 3000, and 2. the powder coating has such a particle size distribution that a) at least 90% by mass of the powder coating particles have a particle size between 1 and 100 µm, b) the maximum particle size of the powder coating particles for at least 99% by weight of the particles is ~ 50 µm, c) the average particle size of the powder coating particles is between > 20 and 60µm, and d) the slope of the particle distribution curve at the inflection point is ~ 50.
Patent CA-2155314-C (CA)
Title: System and method for manufacturing improved data display retroreflective sheeting
Inventor: LOOK THOMAS F
IPC: B41L17/24
Filed: 1994-02-02
Granted: 2007-05-22
Abstract: A transportable and modular system (10) and method for printing variable information indicia on a reflective sign comprises providing a first polymeric sign component (25) having a surface suitable for receiving a printed image (166). A  definition of an image to be printed on the first sign component is provided to a portable computer (14). Indicia in the form of images is then rapidly transferred to the surface of the first sign component.