baber/WOPTO huggingface dataset:
Patent CA-2033195-C (CA)
Inventor: TROUT HUGH H III
IPC: A61M25/00
Filed: 1990-06-15
Granted: 1994-11-15
Abstract: An aortic graft and system (10) and method for implanting the aortic graft are provided. The aortic graft (18) comprises a substantially cylindrical graft material with attachment means (22) which comprise a plurality of post (24) and hook (25) assemblies which are implanted with a double catheter system (35) to penetrate the aorta wall (11) above and below the aneurysm (12) to provide firm attachment of the aortic graft (18) and, thereby, exclude the aneurysm (12) from the circulatory system.
Patent CA-2033618-C (CA)
Title: Vehicular lug nut cover and clip
Inventor: BIAS DONALD R
IPC: F16B37/14
Filed: 1991-01-04
Granted: 1994-12-13
Abstract: A cover for a bolt and nut having a plurality of generally planar, annular surfaces comprises a shell including a closed end portion and a plurality of side surfaces extending downwardly from the closed end portion.  Each side surface has a generally planar inner wall that terminates in the bottom wall adapted for adjoining a flat surface of the wheel rim mounted on a vehicle with a plurality of such bolts and nuts.  The cover further comprises a clip for inserting into the cavity defined by the shell side surfaces.  This clip includes an annular ring and a plurality of spaced projections extending downwardly from the ring's perimeter, each projection adapted for engaging an annular nut surface when the cover is installed thereover.  The cover further comprises means for retaining the clip within the shell cavity.  Preferred retaining means include:  at least one inward protrusion from each inner wall against which a clip projection end section will engage when the clip is inserted into the cavity; and at least one pair of ring locators extending inwardly and axially along opposing inner walls of the shell.  On a preferred basis, this outer shell is made from chrome-plated plastic and the clip from a zinc-plated metal such as steel, brass or aluminum.
Patent CA-2036670-C (CA)
Title: Syndiotactic 1,2-polybutadiene synthesis in an aqueous medium
Inventor: BELL ANTHONY J
IPC: C08F2/16
Filed: 1991-02-19
Granted: 2003-08-19
Abstract: Pure syndiotactic 1,2-polybutadiene is a thermoplastic resin which has double bonds attached in an alternating fashion to its polymeric backbone.     Films, fibers and molded articles can be made utilizing syndiotactic 1,2-polybutadiene. It can also be blended into rubbers and cocured therewith. Syndiotactic 1,2-polybutadiene can be made by solution, emulsion or suspension polymerization. It typically has a melting point which is within the range of about 195°C to about 215°C. However, it is often desirable for the syndiotactic 1,2-polybutadiene to have a melting point of less than about 195°C. This invention discloses a process for preparing syndiotactic 1,2-polybutadiene having a melting point of less than about 195°C which comprises: polymerizing 1,3-butadiene monomer in an aqueous medium in the presence of (1) a catalyst composition which is made by reacting (a) at least one cobalt compound (b) at least one organoaluminum compound, and (c) at least one conjugated diene; (2) carbon disulfide; and (3) at least one modifier selected from the group consisting of (a) 4-(alkylamino)benzaldehydes, (b) 4-(dialkylamino)benzaldehydes, (c) 2,4-di-(alkoxy)benzaldehydes, (d) 2,6-di-(alkoxy)benzaldehydes, (e) 2,4,6-tri-(alkoxy)benzaldehydes, and (f) 4-(1-azacycloalkyl)benzaldehydes.
Patent CA-2041536-C (CA)
Title: Method for treatment and recycling of pulp mill bleach plant effluents
Inventor: MYREEN BERTEL
IPC: D21C11/10
Filed: 1991-04-30
Granted: 1997-12-09
Abstract: Abstract The invention relates to a method for treatment and recycling of pulp mill bleach plant effluents. Chlorine-containing chemicals are separated from the fluid obtained from the first bleach stage (DC) implemented with these chlorine-containing bleach chemicals on pulp (2) that has been washed (W) and partially dewatered (P1) whereby the pulp (3) from the mentioned bleach stage (DC), with chlorine-containing bleach chemicals, is dewatered (P2) up to about the same dryness of at least 25 % and at most 35 % as for the mentioned thereto incoming pulp (2) and whereby the fluid from the second dewatering (P2) is recycled to the bleach stage (DC) and the outcoming fluid (9) from the bleach stage (DC) is evaporated (EV) through indirect heating with condensing vapour obtained through recompression of vapour stripped in the evaporation. The dewatering (P1, P2) is preferably performed by pressing out the liquid from the pulp (2, 3) and the evaporation (EV) in several stages connected in parallel or in series at a temperature below 70°C.
Patent CA-2048487-C (CA)
Inventor: YUNOKI AKIO
IPC: D05B35/06
Filed: 1991-08-06
Granted: 1996-04-30
Abstract: A guide device for guiding a slide fastener chain with cloth pieces attached to opposed fastener tapes of the chain.  The guide device is adapted to be located near and upstream of a discharge unit for dis-charging the slide fastener chain with the cloth pieces attached to the opposed fastener tapes.  The guide device comprises a pair of guide arms extending perpendicularly to a travelling path of the slide fastener chain, the guide arms extending horizontally toward each other for engaging the attaching portions of the cloth pieces.
Patent CA-2051712-C (CA)
Title: Suction muffler tube
Inventor: HARPER HAROLD M
IPC: F04B39/00
Filed: 1991-09-18
Granted: 1994-12-13
Abstract: A muffler tube for use in a hermetically sealed compressor is disclosed.  The muffler tube of the present invention has a roughened outer finish, and has a protuberance extending radially outwardly therefrom, which protuberance is received in a recess in the inner wall of the muffler.  The combination of the roughened outer finish and the protuberance connection assist in preventing the muffler from turning on the tube, and from moving vertically on the tube.
Patent CA-2052504-C (CA)
Title: Glass edge finishing
Inventor: BRICKER JACK A
IPC: C03B29/02
Filed: 1991-09-30
Granted: 1995-10-10
Abstract: Glass sheets of irregular peripheral outlines are flame seamed by a method and apparatus which incorporates a ring-type burner having an apertured inner wall aligned with the central portion of the glass sheet edge to develop an edge of more uniform appearance and smaller irregularities than those obtained using the techniques of the prior art by using a novel structural arrangement for the burner adjacent the apertured wall through which fuel gas is applied as a flame to the central portion of the glass sheet's edge so as to equalize the intensity of the flame applied to different portions of the glass edge where the inner wall edge is straight and where the inner edge wall is curved by providing a slight difference in structure of the flame supply system in the straight and curved portions of the outline of an interior wall structure of the ring-type burner.  The novel structural arrangement used to obtain the more uniform appearance and small irregularities of the glass edge consists of varying the distance separating adjacent ports and/or the size of the port opening of a port-type burner along the straight and curved portions of an inner apertured wall of the burner, depending on the degree of curvature and its concavity or convexity.  Further reduction of non-uniformity of glass edge appearance may be accomplished by providing orbital motion between said glass sheet outline and an apertured inner wall of said ring-type burner.
Patent CA-2054058-C (CA)
Title: Vacuum circuit interrupter contacts and shields
Inventor: BAMFORD ALLAN JOHN
IPC: H01H33/66
Filed: 1991-10-23
Granted: 2001-07-03
Abstract: A powdered metallurgical procedure for forming copper-chromium contacts and copper-ferrous material shields for use in vacuum circuit interrupters. The copper chromium contacts include a specific copper-iron non-abutting section, and an abutting layer preferably of copper-chromium with a layer thickness that constitutes about 50% of the total thickness of the contact which constitutes the abutting section of the contact struc-ture. The shield for the contacts, are preferably formed of copper-ferrous material and "X" in which 1%-50% is ferrous material, and "X" = chromium 0% to 30% and ferrous material plus "X" is less than 60% of the total shield.
Patent CA-2062757-C (CA)
Inventor: FLADDA GERDT HEINRICH
IPC: G01N21/85
Filed: 1990-04-02
Granted: 1999-12-14
Abstract: L'invention concerne un appareil destiné à empêcher le blocage d'une tête de mesure destinée à procéder à des mesures sur des substances en suspension dans un milieu s'écoulant. Un faisceau de lumière est transmis à partir d'une source de rayonnement (15), à une intensité déterminée laquelle est constante pendant le processus de mesure. L'intensité du rayonnement émis par le milieu est indiquée à l'aide d'au moins un indicateur de rayonnement (16). Le signal de sortie électrique de l'indicateur de rayonnement est transmis pour être évalué à un système de traitement de signaux (18). Un canal ouvert de mesure (13) comporte deux bords opposés mutuellement et destinés à être placés le long du sens de l'écoulement du milieu. Le rayonnement provenant de la source de rayonnement est émis par un bord et est reçu au niveau de l'autre bord. Des éléments conducteurs de rayonnement (10, 11) sont placés conjointement avec le canal de mesure, aussi près que possible de la partie extérieure des bords. Toutes les jonctions entre les surfaces d'extension différente situées à proximité du canal de mesure sont légèrement arrondies.
Patent CA-2062771-C (CA)
Inventor: MORSS STEPHEN
IPC: G06F13/10
Filed: 1990-03-28
Granted: 2000-05-16
Abstract: Ce système, à utiliser dans le cadre d'un système de traitement de l'information, se compose d'un bus du système (16) possédant un bus d'adresses du système (16a) et un bus de données du système, ainsi qu'au moins deux processeurs de données (12) et (14), couplés au bus du système, d'un dispositif d'émulation permettant au premier processeur d'exécuter, conjointement avec un autre processeur, un programme nécessitant l'accès à des emplacements d'adresses prédéterminées associées à un type spécifique de dispositif, plus particulièrement du type d'un dispositif I/O ne résidant pas en permanence en mémoire centrale. Le dispositif d'émulation comprend un ensemble de circuits (30) servant à détecter l'occurence de l'accès par le premier processeur à un emplacement d'adresse prédéterminée, un autre ensemble de circuits (SO) servant à arrêter le premier processeur avant l'achèvement d'un cycle d'accès et, enfin, un ensemble de circuits servant à prévenir le second processeur de l'arrêt du premier. Le dispositif comprend ensuite un ensemble de circuits (24a) destiné à indiquer au second processeur, une valeur de l'emplacement d'adresse prédéterminée à laquelle on a accédé et un type d'accès à l'emplacement d'adresse prédéterminée qui soit tel que le second processeur ait accès à un dispositif I/O du même type ou à un type correspondant de dispositif I/O. Le second processeur provoque le déblocage du premier processeur pour achever le cycle d'accès.
Patent CA-2065158-C (CA)
Title: Integrated power unit combustion apparatus and method
Inventor: KLAASS REINHARD M
IPC: F02C7/27
Filed: 1990-09-20
Granted: 1996-04-09
Abstract: The invention relates to secondary power system (10) apparatus and method for use aboard aircraft in place of convention-al auxiliary power units (APU's) and emergency power units (EPU's).  The invention integrated power unit (12) (IPU) performs the function of both an APU and an EPU, while avoiding the use of hazardous monofuels.  The IPU (12) includes a turbine en-gine (20) operable on pressurized ambient air, or on pressurized stored air, along with jet engine fuel. The structure of a combus-tion chamber (26) for the engine which is able to use pressurized air from two separate sources; of a control (18) able to selective-ly operate the engine as an EPU, as an APU, and to effect operating transition from EPU to APU; and of a complete secondary power system (10) with the IPU (12) are all disclosed.
Patent CA-2069383-C (CA)
Title: Stable butadiene polymer latices
Inventor: WEIH MARK A
IPC: C08F2/44
Filed: 1992-05-25
Granted: 2000-10-10
Abstract: A butadiene polymer latex is prepay ed by emulsion polymerizing appropriate monomers in the presence of polyvinyl alcohol and a stabilizing solvent. The butadiene polymer can be a butadiene homopolymer, copolymer or terpolymer prepared from butadiene monomers and optional comonomers such as .alpha.-haloacrylonitrile and acrylic acid. The butadiene polymer latices can be prepared without problems of coagulation and can be utilized effectively in adhesive compositions without the use of volatile solvents. Adhesive bonds prepared from the butadiene polymer latices also avoid the side effect problems associated with polymers prepared utilizing conventional surfactant-based emulsion polymerization techniques.
Patent CA-2080679-C (CA)
Title: Slide-proof spigot-and-socket joint
Inventor: IMHOF ERICH
IPC: F16L21/08
Filed: 1992-10-15
Granted: 2003-05-20
Abstract: The spigot-and-socket point which is secured against sliding is designated for moulded parts and for socket pipes (1) produced by the centrifgual casting technique, with the spigot end (3) of the one pipe adapted to be slid, with radial play, into the socket end (2) of the other pipe. In the socket end there are arranged a sealing ring (8) and a separate clamping ring (14) comprising a plurality of circumferentially extending, spaced clamping segments (15) having a spherically convex outer surface (17) and, on their inner surface (18), a tooth system (19) which, in the presence of axial forces, presses radially onto the spigot end (3) as the spherically convex surface (17) cooperates with a pipe socket's inner surface (18) which tapers conically towards the end. An elastomer support member (20), which can be fixed in its position at the socket face end and supports the same, is provided on the clamping ring (14). A form, which ensures proper retention also in the case of increased rated widths, is obtained when the support member's annular disk-shaped portion (23), which bears on the socket front face (22), comprises a reinforced transition region (26) of increased flexural strength in the region of the inner edge of the socket front face, with the portion (24) connecting to the clamping ring (14 issuing therefrom, and when the socket front face (22) has at its inner edge a recess matching the cross section of the reinforced transition region (26). There a steel ring (28), which increases the flexural strength and can be optionally inserted via an axial insertion slit (29), is cooperating with the reinforced transition region (26) of the support member.
Patent CA-2080897-C (CA)
Title: Apparatus and method for locating a breast mass
Inventor: DEBBAS ELIE
IPC: A61F2/958
Filed: 1990-04-26
Granted: 2001-08-07
Abstract: A mass localization device includes a catheter (12) and a needle (30). The catheter includes inner (18), and outer (20) walls spaced from each other and creating a gap (22) between the walls extending along substantially the entire length of the catheter.   The distal portion (28) of the outer wall includes an inflatable balloon. A  port extension member (38) is provided at the proximal end of the catheter for communicating a supply of air to the inflatable balloon via the gap between the inner and outer walls of the catheter. The needle is insertable through the catheter to extend beyond the distal end of the catheter. In use, the combination of the needle and catheter are inserted.into body tissue. Under assistance of x-ray radiography, the device is moved toward a mass in the tissue. Once proximate the mass, an anesthetizing agent is introduced into the tissue through the needle. Subsequent-ly, the balloon is inflated for contacting the mass, and thus making the mass palpable. The needle is withdrawn from the catheter, and the patient is prepared for a biopsy or other medical procedure. An incision to the mass can be achieved by the shortest possi-ble distance since the mass is made palpable.
Patent CA-2082017-C (CA)
Inventor: SCHMODE HARTMUT
IPC: H01R43/042
Filed: 1992-11-03
Granted: 2002-05-14
Abstract: The invention relates to core end sleeves which are linked to one another in the form of a belt. Each of the sleeves has a metal sleeve portion in a front region thereof and a plastic sleeve portion which partially overlaps the metal sleeve. The plastic sleeves are each provided with a projection associated with the rear of the sleeve and rests on an outer side of the belt. The height of the projection at right angles to the plane of the belt, is independent of the diameter of the plastic sleeves. Core end sleeves for different conductor cross-sectional dimensions can thus be transported using one and the same core end sleeve guide track having a guide groove on its one side wall for the projections.
Patent CA-2083055-C (CA)
Title: System for separation of materials using suction air power
Inventor: DUIJN CORNELIS G S
IPC: B07B9/00
Filed: 1991-05-15
Granted: 1998-08-18
Abstract: A mixture of material is transported by a vibrating conveyor (B), deposited ther eon by belt conveyor (A), before an inlet (11) of a suction mouth (1). Suction mouth (1) is adjustable in all directions a nd by using the adjustable units (2) mounted on the suction duct (4), the height of the mouth (1) may be adjusted above the transpor ted mixture of materials which is to be treated. The width of the opening (11) of suction mouth (1) is adjustable (20-26) to shap e the mouth either symmetrically or asymmetrically. The suction power at the inlet (11) of the suction mouth (1) is regulated by adj usting its width combined with outside air supply using an air inlet valve (3) associated with suction duct (4) and adjustments of the capacity of exhaust fan (8). The exhausted air is fed to a cyclone (5) in which the materials which are sucked up and transported with the air have to be deposited. The behaviour and velocity of flow of the air entering cyclone (5) are adjustable by using the air inlet valve (3) and adjustment of fan capacity. The suction of fan (8) is connected at the outlet pipe (7) of the cyclone (5). T he air exhausted via fan (8) is blown through a dust filter (9) and collected particles are transported by conveyor (10) into a bag ( C).
Patent CA-2097700-C (CA)
Inventor: DUNNE STEPHEN TERENCE
IPC: B05B1/00
Filed: 1991-12-04
Granted: 2003-08-19
Abstract: The present inven-tion relates to a device for controlling flow which comprises: a) a housing member (102) having an internal chamber through which fluid is adapted to flow; and b) a static infill member (116) located within the chamber and forming a passageway (120, 122, 128) for the flow of fluid between the inter-nal wall of the chamber and the external wall of the support chamber, which passageway is di-mensioned so as to restrict the back flow of fluid therethrough at an am-bient pressure differential.    Preferably, the internal chamber and the infill member are circular in cross-section and the pas-sageway is provided by the annular gap between the opposing axial walls of the chamber and the infill member. The invention also provides a nozzle assem-bly incorporating the flow control device and spray generating devices incorporating the nozzle assembly.
Patent CA-2111796-C (CA)
Inventor: HAKKA LEO ERNEST
IPC: C07C209/00
Filed: 1993-12-17
Granted: 1997-09-23
Abstract: Processes are disclosed for converting heat stable amine salts to heat regenerable amine salts using a modified electrodialysis zone.  The processes of the present invention can be used to reduce the level of heat stable salts in a lean solvent stream in an acid gas removal process and can be integrated with the acid gas removal process to utilize process streams as a source of ions.
Patent CA-2113540-C (CA)
Title: System for cross-connecting high speed digital sonet signals
Inventor: UPP DANIEL C
IPC: H04L12/66
Filed: 1989-12-08
Granted: 1998-09-22
Abstract: A modular, expandable, non-blocking system for cross-connecting high speed digital signals is provided.  The system is capable of connecting DSn, CEPTn, and STSn signals as desired, with lower rate signals being included as components of the high-rate signals or terminating on low speed lines, as desired.  The system accomplishes its goals by converting all incoming signals into a substantially SONET format, and by processing all the signals in that format.  The signals are typically cross-connected in the substantially SONET format, although an expandable non-blocking wide band cross-connect module provided which cross-connects any like signals.  If the outgoing signal is to be in other than SONET format, the substantially SONET formatted signal is reconverted into its outgoing format,  To create a complete system, various modules are utilized, including: add/drop multiplexer means for add/drop applications of DS-0, DS-1, CEPTn signals, etc.; a SONET bus interface; a virtual tributary cross-connect module which cross-connects virtual tributary payloads in space, time, and phase to generate new substantially SONET formatted signals; a wide band cross-connect module; a DS-3/SONET converter; and front end interfaces including a DS-3 line interface, and various STSn interfaces.  The modules may be mixed and matched as desired to accommodate a multitude of applications.
Patent CA-2120170-C (CA)
Inventor: TANIS DALE R
IPC: A01F7/06
Filed: 1994-03-29
Granted: 1998-11-17
Abstract: A threshing rotor for an agricultural combine. The threshing rotor comprises an elongated drum having a generally cylindrical outer wall defining a smooth outer surface or skin extending along the length of the drum and having a plurality of straps or bandscircumferentially arranged about and disposed along the outer wall of the rotor. Each band or strap has at least one threshing element connected thereto. A clamp mechanism releasably secures each strap against the outer wall of the drum and permits the strap and the threshing element connected thereto to be quickly replaced and/or shifted relative to adjacent threshing elements carried by adjacent straps. The threshing rotor further includes stops provided on opposite sides of each strap to inhibit longitudinal shifting of the strap along the outer wall of the rotor during a threshing operation.
Patent CA-2120312-C (CA)
Inventor: RUDOLF KENNETH Q
IPC: A61G7/00
Filed: 1994-03-30
Granted: 2001-09-04
Abstract: A castor control mechanism for a hospital bed having a plunger type neutral/brake/steer castor comprises a linkage including a rocker arm pivotally mounted to the base of the bed, a link connected on one end to the rocker arm and being connected on its other end through a cam and follower mechanism to a shaft rotatably mounted to the base and rotatable by a foot pedal. Operation of the foot pedal moves the plunger of the castor via the rocker arm to place the castor in its steer, neutral and brake positions.
Patent CA-2120673-C (CA)
Title: Portable spa with integral bottom pan, interchangeable side skirt, and interlocking cover
Inventor: WATKINS JEFFREY KING
IPC: A47K3/10
Filed: 1994-04-06
Granted: 1998-12-08
Abstract: A portable  spa  including a cover having  two rigidly molded, interlocking halves, designed to conform with the contour of the rim of the spa.  The rim includes a vertical extension which interfits with an extrusion used to attach an interchangeable decorative vinyl-covered-kirt about the side surface of the spa.  The spa structure is supported by an integral molded bottom pan, which provides an upper edge or rim against which the lower edge of the skirt is secured.