baber/WOPTO huggingface dataset:
Patent CA-2035700-C (CA)
Title: Power booster bushing
Inventor: WOO KENNETH J
IPC: H01R4/08
Filed: 1991-02-05
Granted: 2001-07-03
Abstract: A power booster bushing for obturating powder gases in a cartridge case employed by power actuated tools used for connecting power cables. The power booster bushing supports an explosive power cell and is slidably positioned in the cartridge case bore and has a series of ribs defined by grooves engaging the cartridge case bore. The interface between the cartridge case bore and the bushing is sealed during detonation of the power cell by means of the circumferential ribs. The bushing undergoes an "accordion effect" during detonation characterized by axial compression of the bushing and resulting in the prevention of powder gas escape through the open breech end of the cartridge case.
Patent CA-2036892-C (CA)
Title: Tamper-proof locking mechanism for quarter turn valves
Inventor: ROBERTS JOHN L
IPC: F16K35/06
Filed: 1991-02-22
Granted: 1996-05-28
Abstract: A tamper-proof locking mechanism for a rotatable control device, such as a quarter turn valve including a valve member connected to a stem journalled in a body housing the valve member and an operating handle connected to the stem for rotating the valve member between open and closed positions. The locking mechanism includes a pair lugs on the valve body at circumferentially spaced locations corresponding to the locations of an intermediate portion of the handle when the valve member is in the open and closed positions.  A slider member is slidably mounted on the intermediate portion of the handle for reciprocative movement between a locked position and an unlocked position.  The slider member includes a latch element having an open portion for receiving the lugs and arranged to restrain both rotational and axial movement of the handle when the handle is in the open or closed position and the slider member is in the locked position.  When the slider member is moved to the unlocked position, the handle can be moved freely between the open and closed positions.  An aperture in the intermediate portion of the handle adjacent the slider member can receive the shackle of a padlock which is engaged by the slider member when movement of the slider member from the locked position is attempted.
Patent CA-2039672-C (CA)
Title: Low voltage electron beam radiation cured elastomer-based pressure sensitive adhesive tape
Inventor: YARUSSO DAVID J
IPC: C09J7/38
Filed: 1991-04-03
Granted: 1995-03-07
Abstract: A pressure sensitive tape comprising an electron beam radiation crosslinkable pressure sensitive adhesive on a radiation-degradable backing, the adhesive having been crosslinked by exposure to electron beam radiation in a fashion such that the dosage reduction through the adhesive layer is no greater than about 40%; the average dosage which is received by the backing is less than about 80% of that received by the adhesive, and a sufficient dose of beam energy has been provided to produce a gel content in the adhesive of at least about 20% by weight of the elastomer.
Patent CA-2040327-C (CA)
Title: Isdn (intergrated services digital network) interface circuit and system using the same
Inventor: TAKATO KENJI
IPC: H04Q11/04
Filed: 1991-04-12
Granted: 1996-02-20
Abstract: An ISDN (Integrated Services Digital Network) interface circuit is provided which is coupled to a terminal device via a transmission line and a reception line, the transmission line being formed of a pair of first and second wires, and the reception line being formed of a pair of third and fourth wires.  The ISDN interface circuit includes a first resistor and a second resistor connected in series between the first and second wires of the transmission line, and a third resistor and a fourth resistor connected in series between the third and fourth wires of the reception line.  The ISDN interface circuit also includes a D.C. power source connected to one of a first node at which the first resistor and the second resistor are mutually connected and a second node at which the third resistor and the fourth resistor are mutually connected.  One of the first node and the second node other than the above-mentioned one of the first node and the second node connected to the D.C. power source is grounded.
Patent CA-2045527-C (CA)
Inventor: STAFFORD TREVOR GEORGE
IPC: B29C65/68
Filed: 1990-11-21
Granted: 1999-10-19
Abstract: Members such as natural gas distribution pipes (10, 12) of polyethylene or other plastics material are assembled with an internal liner (14) and heat is applied to the pipes externally by an electric heater assembly (18). After cooling the heater assembly is removed. The outer surface of the liner (14) fuses and bonds to the insides of the pipes. The pipe end portions fuse and bond across the interface (30). The liner is for example of polyethylene of molecular weight more than half a million containing finely divided carbon as filler. The liner is extruded and cold drawn to reduce its diameter to a close fit in the pipes. The applied heat causes the liner to expand more than the pipes. The liner retains enough stiffness to press against the insides of the pipes. Melt pressure and flow result and serrations on the liner give interlocking in the bond interface. The liner causes pressure drop in gas flow no greater than internal bead in butt fusion joining.
Patent CA-2047132-C (CA)
Inventor: HIRASAWA MASANORI
IPC: A44B19/58
Filed: 1991-07-16
Granted: 1995-03-28
Abstract: An apparatus for gapping a stringer chain at predetermined intervals is disclosed, which comprises an anvil and a cutter cooperating therewith in cutting a length of coupling elements on a pair of support tapes.  The cutter includes a vertically movable punch which is provided with a plurality of positioning prongs adapted to engage in between adjacent elements and hold the stringer chain firmly in place during gapping thereof.
Patent CA-2047891-C (CA)
Inventor: KURANO TAKATOSHI
IPC: H04L49/111
Filed: 1991-07-25
Granted: 1995-02-14
Abstract: In a routing system having a plurality of external input ports and a plurality of external output ports, a switch network having a plurality of internal input ports and a plurality of internal output ports, an input section between the external input ports and the internal input ports, an output section between the internal output ports and the external output ports, and a control section connected to the switch network and the input section, an input port number which may be assigned to each of the external input ports is arranged in a routing information field of a transmission path signal by an input port number setter included in the input section.  The input port number is memorized in a discarded cell memory of the control section together with an internal output port number which is assigned to the internal output ports and which is derived from a routing table along with a header.  On occurrence of a discarded cell, the cause of discard can be analyzed by the use of the input port number and the header.  When a plurality of external input cells are multiplexed into a multiplexed input cell sequence, the input port number may be replaced by the internal output port number in the control section to effectively utilize the routing information field.
Patent CA-2074964-C (CA)
Title: Procede de formation d'un depot contenant de la silice sur une surface d'un objet en verre
Inventor: DICK SAMI
IPC: C23C16/40
Filed: 1992-07-30
Granted: 2001-12-11
Abstract: On forme un dépôt d'une couche à base de silice sur une surface d'un objet en verre en projetant sur une surface chaude de l'objet, en atmosphère ambiante non confinée, un mélange gazeux ayant une teneur en silane inférieure à 2%, une teneur en oxygène comprise entre 3,5 et 30%, et avantageusement une teneur en hydrogène inférieure à 5%. La surface de l'objet à traiter est avantageusement chauffée juste avant son passage au poste d'injection. L'invention convient notamment pour la formation de couches barrières anti- migration, en particulier de sodium sur les verres sodo-calciques, et résulte en une augmentation de la résistance de l'objet en verre aux milieux alcalins, notamment aux produits détergents, permettant d'effectuer de façon simple et particulièrement souple des dépôts de qualité sur un grand nombre d'objets en verre et autorisant de ce fait des coûts d'installation et de production notablement réduits.
Patent CA-2075697-C (CA)
Title: Fuel and air injection for multi-cylinder international combustion engines
Inventor: HAAS ALBERT L
IPC: F02M67/12
Filed: 1992-08-10
Granted: 1999-01-19
Abstract: A fuel and air assembly is provided for furnishing an air and fuel mixture under pressure to a cylinder of an ignition fired internal combustion engine which utilized a solenoid-actuated valve timed to admit the mixture to the cylinder. A standard fuel injector is interfaced with one end of a mixing insert which is connected at the other end to an air passage of a fuel rail.  At one side of the insert is an outlet passage leading to the solenoid actuated valve which has an outlet end shaped to enhance fuel distribution and combustion.          The mixing insert contains an air filter and passages to conduct air to the common passage for air and fuel.   The insert is captured in the fuel rail between a locating shoulder and the fuel injector for proper positioning relative to the timed valve. An adapter cap on the solenoid assembly joins the insert to the valve controlled passage to the cylinder.
Patent CA-2076161-C (CA)
Title: Shuttle assembly for use in an injection molding machine
Inventor: BROWN ROBERT L
IPC: B22D17/22
Filed: 1992-08-14
Granted: 1995-12-26
Abstract: A shuttle assembly for an injection molding machine is provided.  The shuttle assembly includes a shuttle-support unit adapted to be attached to the machine frame and a shuttle-mold interfacing unit, slidably coupled to the support unit.  Mold-coupling members are provided for removably coupling a first movable mold platen unit and  a  second mold platen unit to  the  shuttle-mold interfacing unit.   During operation of the  shuttle assembly, a shuttle-drive unit selectively reciprocally indexes  the  shuttle-mold  interfacing  unit  in  a preferably horizontal shuttle-travel path between (i) a first shuttle position whereat the first movable mold platen unit,  when coupled thereto,  is situated at a first unloading/loading position, and the second movable platen unit,  when coupled thereto,  is situated at a clamping position; and (ii) a second shuttle position where the first movable mold platen unit, when coupled thereto,  is situated at a clamping position, and the second movable platen unit, when coupled thereto,  is situated  at  a  second  unloading  position.    In  the preferred embodiment, the first unloading position and the second unloading position are located on opposite sides of the clamping position.
Patent CA-2080230-C (CA)
Title: Ac power conditioning circuit
Inventor: WOHLFORTH E BRIAN
IPC: H02H3/22
Filed: 1991-04-16
Granted: 1996-06-04
Abstract: An AC power factor conditioning circuit consists of a circuit with AC power lines (12, 14) each having a path to neutral. A first path (36) from line (12) has a choke (28) cou-pled in series with a capacitor (38). The second path (48) has a second choke (30) coupled in series to a capacitor (50). The choke (28) includes a first coil portion (32) wrapped around a ferromagnetic core (26), and a portion of second path (48) while the second coil portion (34) is wrapped around a portion of the second path (48). The second choke (30) has a similar arrangement The chokes (28, 30) connect-ed to power lines (12, 14) act to balance inductive loads e.g. those caused by heavy motors and fluorescent lights. Tran-sient suppressors such as varistors (18, 20, 22, 24, 56, 58) are used for transient suppression.
Patent CA-2085048-C (CA)
Title: Magnetic field analysis method for determining stress characteristics
Inventor: DOWNS ROBERT W
IPC: G01N27/90
Filed: 1992-12-10
Granted: 2003-04-15
Abstract: The apparatus of the invention is a segmented pig body having an electrical instrumentation subassembly mounted thereto. The subassembly consists of a plurality sensors for electromagnetically coupling to the inner surface of the pipeline, each of which generates a signal that varies as the localized relative permeability of the pipeline metal; an odometer assembly for generating correlating data; and an instrument for recording the signal and data for later analysis. The method of the invention comprises passing the pig through the pipeline while it is electromagnetically coupled by the sensors to the inner surface of the pipeline.      During the pass, signals varying with the localized magnetic permeability of the pipeline wall acid correlative data are generated and recorded. After the pass, the correlative data is used to correlate the signals to wall locations to locate stress occurrences.
Patent CA-2090806-C (CA)
Title: Sound dampening device for horns
Inventor: ALBERT ANDRE
IPC: G10K11/16
Filed: 1993-03-02
Granted: 1997-12-30
Abstract: The horn housing may comprise an inner metal shell in the shape of a hexagonal box open at one end fitting into a similarly shaped outer dense solid box similarly open at one end.  Space between the inner and the outer boxes being filled by a low density sound absorbing filler, and the inner box being connected to the outer box by vibration absorbing bolts.  The outer box is mounted to a structure by vibration absorbing mounting brackets.  When a high decibel horn or siren is mounted in the inner box to directed sound through the opening, most of the sound propagating sideways towards the structure is absorbed by the housing increasing the  comfort  level  of  passengers  or  crew  inside  the structure.
Patent CA-2099692-C (CA)
Title: Process for preparing cephalosporin intermediates
Inventor: LIM GARY M F
IPC: C07F7/18
Filed: 1993-06-29
Granted: 2003-09-30
Abstract: The present invention provides a process for the preparation of stable, crystalline cephalosporin intermediates of the formula (See Formula I) wherein X is HI, HCl or H2SO4 which are substantially free of the .DELTA.2 isomer, and which are convertible into broad-spectrum cephalosporin antibiotics.
Patent CA-2100331-C (CA)
Inventor: CLARK ROBERT OWEN
IPC: F41A1/08
Filed: 1992-03-03
Granted: 2001-05-01
Abstract: A projectile launcher and in particular a mass/countermass projectile launcher in which the piston intercepts) comprises a braking collar (8) made of a material which exhibits constrained progressive crushing. When a projectile (18) is fired the launching piston (10) impacts upon the braking collar (8) at the muzzle of the launcher and initiates constrained progressive crushing in the collar (8). The crushing of the collar (8) absorbs the kinetic energy of the piston (10) thus arresting the axial motion of the piston (10). The projectile launcher according to the present invention can be less massive than similar launchers that use conventional metal piston intercepts which is an advantage if the launcher is designed to be shoulder-launched by a human operator. The type of collar material preferably used is made of a solid filler embedded in a plastics matrix and in particular the solid filler is made of reinforcing fibres.
Patent CA-2105251-C (CA)
Inventor: SHIBANO MITSUGI
IPC: A61P33/00
Filed: 1993-08-31
Granted: 2004-12-07
Abstract: An intermediate useful in the synthesis of milbemycin derivatives having an ether bond at the 13-position and which is represented by the general formula (IIId):    (see formula IIId) wherein R represents a methyl group, an ethyl group, an isopropyl group or a sec-butyl group, and R5 and R6' each individually represents a hydrogen atom or a protecting group, and related precursors as well as to a process for producing these intermediates.
Patent CA-2109244-C (CA)
Inventor: BRANEMARK PER-INGVAR
IPC: A61F2/36
Filed: 1993-10-26
Granted: 2004-09-21
Abstract: An anchoring element (1) for supporting prostheses or part thereof. The anchoring element (1) is substantially rotationally symmetrical and provided with external threads (20) and a central bore (2). At least one slit (3, is arranged in spiral form around the longitudinal axis (13) of the element (1) and extends aver at least the major part (11, 12) of the outer wall of the element. Said major part being provided with external threads (20), the chirality of said slit (3, 4, 5, 6) being the same as that of the outer threads (20).
Patent CA-2110993-C (CA)
Title: Food composition for inhibiting the formation of an intestinal putrefactive product
Inventor: TAKAICHI AKIHISA
IPC: A23L2/60
Filed: 1993-04-02
Granted: 2002-02-05
Abstract: The present invention provides a food composi-tion for inhibiting the formation of an intestinal putrefactive product, containing lactosucrose as an effective component. This food composition is low in calorific value because the lactosucrose is indigesti-ble, and can decrease the amount of an putrefactive product to be generated in intestines. Accordingly, this food composition effectively prevents the out-break of a variety of cancers for which the putrefac-tive product might serve as a promoter.
Patent CA-2111662-C (CA)
Inventor: YANAGISAWA HIROAKI
IPC: C07D233/88
Filed: 1993-12-16
Granted: 2004-11-23
Abstract: Compounds of formula (I):   (see formula I) [wherein: A represents a group (IIa), (IIb) or (IIc):   (see formula IIa, IIb) (see formula IIc) R1 is alkyl, alkenyl, cycloalkyl or a group of formula R4-Y-R5-, where: R4 is hydrogen, alkyl, or cycloalkyl, R5 is a single bond or alkylene, and Y is oxygen, sulfur or imino group; R2 is hydrogen, halogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted cycloalkyl, hydroxy, amino, alkylamino, dialkylamino, formyl, alkylcarbonyl, alkoxy, alkylthio, cyano or nitro; R3 is hydrogen, alkyl, carboxy, protected carboxy, carbamoyl or tetrazol-5-yl; X is of formula -CH=, -N= or -C(COOR6)=, where R6 is hydrogen or a carboxy-protecting group; Z is a single bond, alkylene or vinylene; and B is carboxy, protected carboxy or tetrazol-5-yl]; and pharmaceutically acceptable salts and esters thereof have the ability to inhibit the action of angiotensin II and thus can be used for the treatment and prophylaxis of hypertension and cardiac diseases.
Patent CA-2116098-C (CA)
Title: Syntheses asymetriques
Inventor: BABIN JAMES EDWARD
IPC: C07F/
Filed: 1992-08-20
Granted: 1998-01-20
Abstract: La présente invention concerne des synthèses asymétriques dans lesquelles un composé prochiral ou chiral est mis en contact avec un catalyseur à base de complexe métal-ligand optiquement actif pour produire un produit optiquement actif.
Patent CA-2117675-C (CA)
Title: An oil-and water-repellent gas-permeable filter
Inventor: SUGIYAMA NORIHIDE
IPC: B01D39/16
Filed: 1994-09-08
Granted: 1999-06-22
Abstract: A oil and water-repellent filter which contains a porous filter material that has its internal and external surfaces coated with a compound formed by combining a fluroropolymer having a fluorine-containing aliphatic cydic structure in the main chain and a fluoropolymer containing polyfluroalkyl groups. The coating imparts superior oil- and water-repellency without impaimnent to the flow of air or other gases through the filter.
Patent CA-2124921-C (CA)
Title: Brake cylinder pressure relay valve for railroad freight car
Inventor: HART JAMES E
IPC: B60T13/40
Filed: 1994-06-01
Granted: 2000-04-18
Abstract: A relay valve device for a relayed type brake system in which the compressed air of the auxiliary reservoir is connected to an equalizing reservoir instead of directly to the brake cylinder, as in a conventional system. Since the equalizing reservoir volume is fixed, as compared to the brake cylinder volume which varies with piston displacement, the equalizing reservoir volume must be greater than the final brake cylinder volume in order to obtain a full equalization pressure that matches the full service application pressure in a conventional brake system. The relay valve device employs a control piston that is subject opposingly to the equalizing reservoir pressure and the effective brake cylinder pressure delivered by the relay valve device. A differential pressure area of the control piston is selected in accordance with the volumetric ratio between the auxiliary and equalizing reservoirs so that the buildup of brake pressure substantially matches the conventional system partial application pressures, as well as full equalization pressure. A bias spring acts on the control piston to delay its actuation so as to cause the relayed pressure buildup to correspond in time to the conventional system brake pressure buildup.
Patent CA-2134959-C (CA)
Inventor: DE ZEN VITTORIO
IPC: E04B1/12
Filed: 1994-11-02
Granted: 2002-06-11
Abstract: Extruded hollow thermoplastic structural components of rectilinear cross section formed for interlocking assembly with mating components for use in erecting a modular building characterized in that said components are extruded from PVC material which includes a smoke retarding agent which is covered by a skin on surfaces exposed to the environment. Preferably the component is an elongated extruded hollow thermoplastic structural component of rectilinear cross-section formed for interlocking assembly with mating components for use in erecting a modular building, characterized in that said component is formed as a co-extrusion of a substrate of PVC containing from about 10% to 35% by weight of the substrate of a reinforcing and expansion controlling agent and from about 5% to about 35% per weight of the substrate of smoke retarding agent, the total of said agents being less than about 45% by weight of the substrate, and a thermoplastic skin covering surfaces of said component which remain exposed when said component is interlocked with mating components in a building structure, said substrate being substantially thicker than said skin, said skin forming a protective barrier to isolate said smoke retarding agent from exposure to the environment exterior of said component when same is incorporated into a building structure.
Patent CA-2138933-C (CA)
Title: Use of bradykinin antagonists for the preparation of medicaments for the treatment of virus diseases
Inventor: WIRTH KLAUS
IPC: A61K38/17
Filed: 1994-12-22
Granted: 2010-02-23
Abstract: Bradykinin antagonists and their physiologically tolerated salts are suitable for the treatment or prophylaxis of virus diseases.
Patent CA-2139034-C (CA)
Inventor: REAVES PAUL H
IPC: B60J11/00
Filed: 1994-12-23
Granted: 1997-09-30
Abstract: A protective cover for covering vehicles or other objects comprises a rectangular sheet having both an elasticized perimeter and other elasticized portions which enable the cover to fit a wide range of vehicle or object sizes with which the cover is used to protect against paint or other environmental damage.
Patent CA-2140750-C (CA)
Inventor: MCINNES ROSS GORDON
IPC: A61J11/00
Filed: 1993-08-11
Granted: 2001-04-10
Abstract: A teat for feeding liquids to animals has fastening means enabling the teat to be fastened to a source of liquid such as a pipe or drum in use to project outwardly from the source. The teat has a resilient outer end (20a) which is closed apart from a slit (16a) in it which slit is itself normally adapted to be closed by the resilience to provide a sufficient liquid seal. The closed outer end is preferably concave, coned, cusped or otherwise re-entrant. Reinforcing means such as webs (15a) are located, preferably internally on either side of the slit so that if the end of the teat is squashed or compressed by sucking forces exerted by the animal, with components along the direction of slit, the reinforcing means causes the slit to be pulled open, thereby allowing liquid to flow out of it in use. The pulling action allows an acceptable flow rate from a comparatively small slit which is less prone to leak than a large slit.