baber/WOPTO huggingface dataset:
Patent CA-2015978-C (CA)
Title: Method and apparatus for effecting convective heat transfer in a cylindrical industrial heat treat furnace
Inventor: BRANDEWIE JAMES A
IPC: C21D1/767
Filed: 1990-05-03
Granted: 1998-01-06
Abstract: A low-cost,  improved convective heat transfer furnace is disclosed which includes a cylindrical casing to which is attached blanket insulation and the casing is closed at its ends to define a closed end cylindrical furnace enclosure. An annular fan face plate is positioned within the enclosure to define a pressure zone on one side and a work zone on the other side.  A paddle wheel fan in the work zone develops a large mass of circumferentially swirling wind which is initially formed as a stationary swirling mass without an axial force component but which under pressure travels axially in the form of a swirling annulus through the non-orificing annular space.  The under pressure zone established by the central opening in the fan face plate causes the swirling wind annulus in the work zone to expand radially inwardly and uniformly impinge the complete surface of the work in an effective heat  transfer manner before being recirculated back to the pressure zone.
Patent CA-2016358-C (CA)
Title: Method for the synthesis of ribonucleic acid (rna)
Inventor: DAVEY CHERYL
IPC: C12Q1/6865
Filed: 1990-05-09
Granted: 2000-11-28
Abstract: The invention relates to a method for the synthesis of ribonucleic acid starting from deoxyribonucleic acid in which a target sequence is present. Said DNA is treated with restriction enzyme(s) followed by strand separation. Subsequently one uses one nucleic acid primer containing a promoter sequence coupled to a nucleotide sequence which corresponds to a part of the target sequence.      The invention further relates to a test kit for synthesizing RNA.
Patent CA-2019695-C (CA)
Inventor: KELLEY REGINALD D
IPC: F16D55/36
Filed: 1990-06-22
Granted: 2001-01-30
Abstract: A tubular hub member receives a shaft and is surrounded by a housing formed by a base section coupled to a cup-shaped closure section. The hub member defines an inlet passage for circulating cooling oil and supports a set of brake discs which interfit between a set of brake plates supported by pins projecting inwardly from the base section. An annular thrust plate is supported by the base section for axial movement and carries a set of compression springs which urge the thrust plate for clamping the brake plates and discs against a pressure plate mounted within the closure section. An annular electrical coil and support body are mounted by screws and spacer sleeves within the closure section, and an annular armature plate is supported by the sleeves for axial movement adjacent the end wall of the closure section. A set of actuating pins extend axially between the armature and thrust plates through the coil body and pressure plate, and the armature plate cooperates with a portion of the closure section to define a variable oil recirculating passage. Axial movement of the armature plate displaces cooling oil into the inlet passage to provide a surge of cooling oil during braking. The pressure plate has passages which are aligned with recesses in the coil body for recirculating cooling oil when the brake unit is positioned with a vertical axis, and diametrically opposed rotatable members provide for manually releasing the brake unit and for automatic reset to inactive positions.
Patent CA-2021500-C (CA)
Title: Method for stimulating proliferation of peripheral blood lymphocytes
Inventor: SEKINE TERUAKI
IPC: A61K35/12
Filed: 1990-07-19
Granted: 1995-06-13
Abstract: This invention relates to a selective method of proliferation of at least one of certain lymphocytic cellular subpopulations, particularly the CD4+, CD8+, and Natural Killer (NK) subpopulations, within a starting population of peripheral blood lymphocytes (PBL).  A relatively small amount of a starting peripheral blood lymphocytic cellular population is cultured in a multi-step process, beginning with an anti-CD3 antibody immobilized to a culturing substrate.
Patent CA-2023025-C (CA)
Title: Process of extracting anions with quaternary amines
Inventor: STIERMAN THOMAS J
IPC: B01J41/04
Filed: 1990-08-09
Granted: 2003-10-14
Abstract: An improved extraction system employing a quaternary amine to extract anions from an aqueous solution, particularly precious metals such as gold or silver from an aqueous alkaline solution. The improvement comprises the use of a weak organic acid (a compound providing an acidic proton) along with the quaternary amine. The improvement is useful in both liquid-liquid and liquid-solid extraction systems.
Patent CA-2024484-C (CA)
Title: Advanced surgical retractor
Inventor: MCEWEN JAMES ALLEN
IPC: A61B17/32
Filed: 1990-08-31
Granted: 2001-07-03
Abstract: Apparatus useful in surgery for holding retractors and other surgical instrumentation in a number of different positions required by a surgeon for the performance of a surgical procedure, including advanced sensing and regulation of retraction pressures and position; and incorporating a force amplification method to drive a locking mechanism in the supporting structure that utilizes a constrained, substantially incompressible, flexible solid material to yield a mechanism that is suitable for clinical use.
Patent CA-2026807-C (CA)
Inventor: HIBNER JOHN A
IPC: F16H59/46
Filed: 1990-10-03
Granted: 1994-05-17
Abstract: CLUTCH-TO-CLUTCH CONTROL IN AN AUTOMATIC TRANSMISSION         ABSTRACT OF THE DISCLOSURE         In an automatic transmission, upshifting is controlled by ramping down the pressure in an off-going clutch associated with a high speed ratio and increasing the pressure in an on-coming clutch associated with a lower speed ratio.  The on-coming clutch has commanded pressure at a maximum value for an initial fill time, a lower increasing ramp value during the ramp of the off-going clutch until the on-coming clutch starts to engage, and then a closed-loop control until the clutch reaches a synchronous speed.  The closed-loop control parameter is on-coming clutch slip speed which is controlled to a calculated slip speed profile.  The profile has a first steep slope and a final less steep slope so that the actual slip can smoothly go to zero in a given time period.
Patent CA-2030639-C (CA)
Title: Method for making a carbon-coated and polymer-coated optical fiber
Inventor: ATKINS ROBERT M
IPC: C03C25/42
Filed: 1990-11-22
Granted: 1995-05-23
Abstract: A process for manufacturing an optical fiber includes the steps of heating and drawing material from a hot optical fiber preform; depositing a conductive coating on the moving optical fiber; putting a heat curable liquid material on the moving optical fiber; and curing the heat curable liquid material by inductively heating the conductive coating on the moving optical fiber in an electromagnetic field. Heatinduced into the conductive coating by energy from the field is conducted from the conductive coating to the heat curable material. The optical fiber continuously moves through the steps of the process without any physical contact.
Patent CA-2032547-C (CA)
Inventor: MENASSA AIME
IPC: A61L9/01
Filed: 1990-12-18
Granted: 1996-10-08
Abstract: L'invention a pour objet l'usage d'au moins un ester alkylique ou polyoxyalkylénique renfermant 2 à 10 motifs oxyalkylène d'acide undécylénique, à titre de désodorisant des boues de stations d'épurations. L'invention concerne également des boues de stations d'épuration caractérisées en ce qu'elles renferment de 0,01 à 5% en poids d'un désodorisant tel que défini précédemment.
Patent CA-2036036-C (CA)
Title: Optical article exhibiting a high level of second order polarization susceptibility
Inventor: ROBELLO DOUGLAS ROBERT
IPC: G02F1/355
Filed: 1991-02-08
Granted: 1996-07-09
Abstract: An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10-9 electrostatic units comprised of polar aligned noncentrosymmetric molecular dipoles.  The molecular dipoles have an electron donor moiety linked through a conjugated .pi. bonding system to an electron acceptor sulfonyl moiety.
Patent CA-2038373-C (CA)
Inventor: BENSIMON JOSEPH
IPC: F41G7/22
Filed: 1991-03-15
Granted: 2001-10-16
Abstract: - Système de détection pour aéronef (1) stabilisé en roulis. - Selon l'invention, ce système est caractérisé en ce qu'il comporte: . une couronne rotative creuse (3) susceptible de tourner autour de l'axe de roulis (L-L) dudit aéro-nef ; . des moyens pour entraîner ladite couronne (3) en rotation autour dudit axe de roulis ; . des moyens photosensibles disposés à l'intérieur de ladite couronne rotative creuse (3) et susceptibles d'observer l'environnement dudit aéronef à travers au moins une fenêtre d'observation (5) ménagée dans la paroi périphérique externe (4) de ladite couronne ; . des moyens de mesure indiquant à chaque instant la position angulaire de ladite couronne (3) autour dudit axe de roulis (L-L) ; et . des moyens de traitement recevant les informations délivrées par lesdits moyens photosensibles et par lesdits moyens de mesure.
Patent CA-2040737-C (CA)
Title: Phonosurgery devices
Inventor: BEALE BRADFORD WAVEL
IPC: A61B17/24
Filed: 1991-04-18
Granted: 2002-01-01
Abstract: A phonosurgery implant is inserted through an opening in the thyroid cartilage to reposition and stablise a vocal cord. An implant body is formed of a biocompatible material. The body includes a contact surface adapted to support a vocal cord upon insertion through an opening in the thyroid cartilage, the body being shaped to move in the opening so a surgeon can position the body for optimum vocal cord operation.      The body also includes a holding portion away from the contact surface, the holding portion being shaped to be engaged and held by an instrument for inserting and moving the implant body in the opening. The holding portion is engaged and held by a shim in a fixed position in the opening and relative to the vocal cord.
Patent CA-2040920-C (CA)
Title: Capillary inoculator and assembly for inoculating multiple test sites and method of inoculation test sites therewith
Inventor: THOMAS BRADLEY S
IPC: B01L3/00
Filed: 1991-04-22
Granted: 1995-05-23
Abstract: A capillary inoculator assembly  is provided  for inoculating  multiple  test  sites  with  small,  precise volumes  of  inoculum.    The  inoculator  employed  in  the assembly includes a trough-shaped carrier and one or more rows  of  capillaries  extending  therethrough.    The capillaries extend through one or more rows of projections which  form the  lower  part of the carrier.   They are completely filled by capillary action, and the inoculum is retained therein  by  forces  of  adhesion  and  surface tension.   A test device may be employed in conjunction with the capillary inoculator and includes discrete test sites which are aligned with the ends of the respective projections.  Each of the test sites may be provided with an absorbent material such as a cellulose disk.   A dry reagent  may  be  deposited upon  each disk  so  that  the inoculum may be analyzed by testing equipment or by visual observation.   A method  is provided which includes the steps of filling the capillaries, aligning the capillaries with the test sites within the test device, and depositing the liquid inoculum on the respective test sites through wicking action or other procedures.   A method is also disclosed for providing a plurality of discrete,  liquid samples having small, precise volumes from a quantity of liquid which may be of indeterminate volume.
Patent CA-2045821-C (CA)
Title: Iron sponge briquetting press
Inventor: BERGENDAHL HANS-GEORG
IPC: B30B11/18
Filed: 1991-06-27
Granted: 2001-12-11
Abstract: The invention relates to an iron sponge briquetting press having two opposite rollers. The rollers consist of a roller base body and a coating affixed thereto, in which the moulding recesses for shaping the briquettes are formed. In order to provide less expensive roller coatings as compared with the segments used formerly as coating, which have moreover longer service lives, the invention provides that the coating is produced as a closed ring from a chromium nickel molybdenum steel and is held in press fit on the roller base body. Open grooves are produced in the sleeve surface of the roller base body or on the inner side of the ring as cooling ducts, their open sides being covered by the inner side of the ring or the sleeve surface of the base body in the assembled condition of the rollers.
Patent CA-2049369-C (CA)
Inventor: STEINER KARL
IPC: D21F1/00
Filed: 1991-08-16
Granted: 1995-08-22
Abstract: A wire-link belt 1, 41 comprises a first and second, opposite belt side 32, 34; 61, 64, the first side supporting a moving length of material or a web of paper 33, 62, said wire-link belt further comprising a plurality of interlinking wire coils 2, 3, 4, 5; 42,43 consist-ing alternatingly of end arcs 16, 17, 18, 19; 49, 50 and coil-turn legs 10, 11, 12, 13, 14, 15; 45, 46, 47, 48 connecting them and coupled in hinging manner by means of slip-through wires. To reduce slippage between the moving length of material or web of paper 33, 62 and the wire-link belt 1, 41 on one hand and buckling or elongation of said length of material on the other hand, the support of the wire coils 2, 3, 4, 5; 42, 43 at the slip-through wires is such that the wire coils 2, 3, 4, 5; 42, 43 each hinge about axes offset relative to the center plane of the wire-link belt 1, 41 towards its first belt side 32, 61.
Patent CA-2051696-C (CA)
Inventor: HENRION MICHEL ANDRE
IPC: H04L12/54
Filed: 1990-05-23
Granted: 1995-07-11
Abstract: PCT No. PCT/FR90/00365 Sec. 371 Date Dec. 13, 1991 Sec. 102(e) Date Dec. 13, 1991 PCT Filed May 23, 1990 PCT Pub. No. WO91/14325 PCT Pub. Date Sep. 19, 1991.A multiple path, self-routing switching network for switching asynchronous time division multiplex data cells includes input ports (pi1, pi64 . . . ), output ports (po1, po64 . . . ) and switching elements (TSi1, TSi16 . . . ) arranged in a number of stages of interconnected switching elements, each switching element having inlets and outlets and being constructed to transfer a data cell received at one of its inlets, to one or more of its outlets, according to routing data associated with said cells. Each switching element of at least one stage of the network has at least three outlets, arranged in groups of outlets of one or more determined outlets. Using routing data associated with a data cell received at any one of its inlets, the switching element (TSi1, TSi16 . . . ) identifies a set of one or more of said groups of outlets and to transfer said received cell to an outlet of each group of outlets of the selected set.
Patent CA-2053441-C (CA)
Title: Switching system using identical switching nodes
Inventor: BALES BRUCE M
IPC: H04Q11/04
Filed: 1991-10-17
Granted: 1995-01-10
Abstract: A switching architecture with identical switching nodes having a topology which allows for multiple paths between any two endpoint switching nodes without intervening switching nodes being involved in call control on those paths. This architecture is made feasible by a new type of link, the flexible rate interface (FRI) link. The FRI link has its own signaling channel distinct from the signaling channel of a standard link and is transparent to intervening switching nodes. Only endpoint switching nodes are aware of the existence of the FRI link with respect to call control. A standard protocol is utilized on the signaling channels of both the standard link and the FRI link. Advantageously, the standard link may be an ISDNlink and the standard protocol may be the ISDN protocol. An FRI signaling channel of the FRI link may be established by using any of the following: a B channel of a standard ISDN link, standard ISDN user information transport facilities, or a logical link of a D channel of a standard ISDN link. In combination with the FRI signaling channel, the FRI link may utilize B channels from a number of standard ISDN links for FRI B channels.
Patent CA-2053627-C (CA)
Title: Internally enhanced heat transfer tube
Inventor: MOUGIN LOUIS J
IPC: F28F1/40
Filed: 1991-10-17
Granted: 1995-03-21
Abstract: An internally enhanced heat transfer tube comprising a heat transfer tube including an internal surface and an internal diameter (D); a plurality of roughness elements on the internal surface of the heat transfer tube, each roughness element having a height (e) above the internal surface where the ratio of the height (e) to the internal diameter (D) falls within the range .004 ? e/D ? .045.
Patent CA-2056233-C (CA)
Title: High capacity sheet feeder
Inventor: STEPAN CONSTANCE R
IPC: B65H1/02
Filed: 1991-11-26
Granted: 2003-01-21
Abstract: Apparatus for feeding and separating seriatim a sheet of paper from a stack of sheets. The apparatus includes: a deck having a receiving end and a feeding end for supporting the stack of sheets on edge, the deck oriented at an angle between about 10 and 20 degrees to a horizontal plane and wherein the feeding end is lower than the receiving end; a main urge roller situated above the feeding end of the deck at about midway between the top and bottom edges of the stack of sheets, whereby the stack is bent at a point in the sheets about midway between the top and bottom edges of the sheets; a secondary feed roller parallel to and situated above the main urge roller near the top edge of the stack of sheets, wherein a line of tangency joining the peripheries of the main urge roller and the feed roller adjacent the stack of sheets is disposed at an angle between about 40 and 50 degrees to a horizontal plane; a device for urging the stack against the main urge roller as the stack is reduced in the course of the feeding of the sheets seriatim; and a device downstream of the secondary feed roller for separating the bottom sheet from the stack of sheets at the top edge of the stack.
Patent CA-2072957-C (CA)
Title: Filter aid and method for using same for reclaiming oil coolants used for metal working
Inventor: SCHNEIDER JOHN RUSSELL
IPC: C10M175/00
Filed: 1992-07-02
Granted: 2002-05-14
Abstract: A filter aid material and a method for using same in a filtration system for reclaiming and maintaining coolant oil used in aluminum rolling or working processes are disclosed. The filter aid is a fibrous material which is permeated with an acid material and may be provided in either particulate form as a body feed or as a compressed filter pad. As contaminated oil flows through the filter aid, the acid acts chemically to remove aluminum fines and oxides as well as the aluminum portion of contaminating soap in the coolant oil. Use of the filter aid with acid greatly reduces the amount of conventional filter aid previously used and produces a relatively small amount of residual filter aid which can be disposed of by incineration.
Patent CA-2076648-C (CA)
Title: Composition for inducing humoral anergy to an immunogen
Inventor: BARSTAD PAUL A
IPC: A61K47/48
Filed: 1992-02-04
Granted: 1999-08-17
Abstract: Conjugates of stable nonimmunogenic polymers and analogs of immunogens that possess the specific B cell binding ability of the immunogen but lack T cell epitopes and which, when introduced into individuals, induce humoral anergy to the immunogen are disclosed. Accordingly, these conjugates are useful for treating antibody-mediated pathologies that are caused by foreign or self immunogens.
Patent CA-2098294-C (CA)
Inventor: OLINGER PHILIP M
IPC: A23L33/00
Filed: 1991-11-29
Granted: 2000-11-21
Abstract: A directly compressible xylitol granulate comprising xylitol and a physiologically acceptable, non-cariogenic binder taken from the group consisting of polymerized reducing sugars, an alkali carboxymethylcellulose and hydrogenated starch hydrolysate. The granulate is directly compressible and exhibits the taste profile, metabolic and cariostatic properties of xylitol.
Patent CA-2105743-C (CA)
Inventor: SLATTERY MICHAEL J
IPC: B08B6/00
Filed: 1993-09-08
Granted: 1998-11-03
Abstract: An improved apparatus and method adapted for use in removing trace contaminants from the surface of a chosen substrate, such as delicate surfaces or precision parts, by application of a stream or jet spray of expended fluid to the substrate, surface. The improvement consists of controlling electrostatic charges generated on or near the substrate surface during the cleaning process.
Patent CA-2107342-C (CA)
Title: A bale, an apparatus and a method for the wrapping of a bale in two crossing wrapping layers applied in overlapping helical turns
Inventor: SODERBERG STAFFAN
IPC: B65B41/16
Filed: 1992-04-08
Granted: 2002-08-06
Abstract: A method for packaging bales with strips of plastic packaging film, in which a bale is rotated about a generally horizontal axis and, when appropriate, about a generally vertical axis, and wherein film is taken from a film magazine spaced from the bale and wrapped around the bale in successive turns while maintaining the film under tension, and wherein the film in each turn of film around the bale extends generally parallel with and transversely to the horizontal axis. The method is mainly characterized in that the bale is then wrapped with a further wrapping of film, and in that successive turns of this further wrapping cross-over those parts of the turns of the underlying film which extend generally parallel with the horizontal axis, in a manner to retain the underlying turns. This film material is held under tension while being applied. The invention also relates to an arrangement for carrying out the method, and to a bale.
Patent CA-2108587-C (CA)
Title: Neutral, ultraviolet absorbing, fixed tint glasses
Inventor: MORGAN DAVID W
IPC: C03C4/02
Filed: 1993-10-18
Granted: 1997-12-16
Abstract: A transparent glass which, at a thickness of 2 mm, does not transmit more than about 1% of ultraviolet radiation at a wavelength of 380 nm and exhibits a neutral gray, fixed tint bounded by apices A, B, C, D, A of the drawing, a purity no higher than 6, and a luminous transmittance between 10-16, said glass having a composition consisting essentially, expressed in terms of weight percent on the oxide basis, of SiO2     65-72          CaO         0-1.5 B2O3     2-6           Al2O3+caO  0.2-2.25 Na2O      6-10          AS2O3       0-0.3 K2O      10-16          Fe2O3      4.8-6.2 Na2O+K2O 17-23          CO3O4    0.012-0.02 K2O:Na2O 1.25-2.25       NiO      0.16-0.21 A12O3    0-2.25          ZnO         0-1.5.
Patent CA-2112420-C (CA)
Title: N-arylhydrazine derivatives as insecticidal and acaricidal agents
Inventor: FURCH JOSEPH AUGUSTUS
IPC: A01N37/28
Filed: 1994-01-21
Granted: 2007-02-13
Abstract: There are provided N-arylhydrazine derivatives of formula I (see formula I) the use thereof for the control of insect and acarid pests and methods and compositions for the protection of crops from the damage and loss caused by said pests.
Patent CA-2113588-C (CA)
Inventor: GRAEF HARRY T
IPC: G07D11/00
Filed: 1994-01-17
Granted: 1999-08-03
Abstract: Module de traitement de dépôt comprenant, d'une part, un premier élément de transport doté d'une première extrémité servant à recevoir des enveloppes et des dépôts de documents uniques et une deuxième extrémité à partir de laquelle les dépôts sont déchargés et, d'autre part, un deuxième élément de transport placé de façon opérationnelle pour recevoir du premier élément de transport des dépôts de documents uniques et pour les y renvoyer. Des éléments d'impression sont prévus pour imprimer l'information de dépôt sur les dépôts, une tête de charge et la lecture magnétique sont prévues pour charger et lire l'information magnétique sur les dépôts de documents uniques et un système d'imagerie est prévu pour créer une image d'un côté des dépôts de documents uniques. Un mécanisme de porte associé à la deuxième extrémité du premier élément de transport est mobile et peut passer d'une première position où les enveloppes et les dépôts de documents uniques peuvent être déchargés du module et une deuxième position où les dépôts de documents uniques peuvent être transportés entre le premier et le deuxième élément de transport.