baber/WOPTO huggingface dataset:
Patent CA-2088546-C (CA)
Title: Gas-blast circuit breaker
Inventor: HILTBRUNNER HUGO
IPC: H01H33/90
Filed: 1993-02-01
Granted: 2004-10-12
Abstract: The gas-blast circuit breaker has passages in the pump piston which connect the pump space to the arcing space and to the surrounding space. These passages are held closed during switching-off and open during switching-on by valve devices. For this purpose, the pump piston is used as a valve seat and the annular disk is used as a valve body which is common to the first valve and to the second valve, the first valve controlling the passage between the pump space and the surrounding space, and the second valve controlling the passage between the pump space and the arcing space. When switching-off large currents, the piston is subjected to an overpressure in the switching-off direction, which overpressure is produced by switching gas flowing into the arcing space, in order to support the drive. The valves are prevented from opening, by means of the pressure in the pump space. During switching-on, the annular disk is raised off the pump piston against the spring prestressing, by means of the reduced pressure in the pump space and the overpressure in the arcing space, in order to connect these two spaces to the surrounding space and to ensure pressure equalization without the drive having to apply more energy during switching-on than in the case of a circuit breaker without an arcing space.
Patent CA-2088798-C (CA)
Title: Condensed imidazopyridine derivatives
Inventor: TAKADA SUSUMU
IPC: A61K31/47
Filed: 1993-02-04
Granted: 2003-08-05
Abstract: The present invention is directed to a compound of the formula:   (see formula I) wherein R is an optionally substituted aryl group or an optionally substituted aromatic heterocycle group; ring A is a to 9 membered alicyclic group, in which one or more of the carbon atoms constituting said ring A may be replaced by O, S, SO, SO2 and/or NR1 (in which R1 means hydrogen, alkyl, esterified carboxy group, carbamoyl or acyl group) and/or said ring A may have an alkyl group as a substituent or its salt.      The compounds of the present invention are useful as psychotropic agents, for example antianxiety agents, anaesthesia antagonistic agents or cerebral function activators.
Patent CA-2091063-C (CA)
Title: Aminoplast resin or aminoplast resin precursor
Inventor: BRADFORD CHRISTOPHER J
IPC: C08G12/40
Filed: 1992-07-29
Granted: 1999-09-14
Abstract: According to the present invention, a .beta.-dicarbonyl functionality, an .alpha...beta.-unsaturation functionality, or a vinylogous amide functionality is incorporated into an aminoplast resin or an aminoplast resin precursor.
Patent CA-2091265-C (CA)
Title: Crosslinking agent and curable composition
Inventor: ISOZAKI OSAMU
IPC: C08G59/42
Filed: 1992-11-26
Granted: 1997-12-30
Abstract: The invention provides a crosslinking agent comprising a compound having at least two noncyclic acid anhydride groups and represented by the following formula wherein R is a monovalent hydrocarbon group having 2 to 50 carbon atoms, R' is a bivalent hydrocarbon group having 2 to 50 carbon atoms, the hydrocarbon groups R and R' containing or not containing an ether linkage, urethane linkage or ester linkage, and n is an integer of 1 to 500. The invention also provides a curable composition including (A) at least one resin selected from the group consisting of (i) a resin having at least one epoxy group and at least one hydroxyl group in the molecule, (ii) a resin mixture of a resin having at least two epoxy groups in the molecule and a resin having at least two hydroxyl groups in the molecule, and (iii) a resin having at least two epoxy groups in the molecule, and (B) the above-mentioned crosslinking agent.
Patent CA-2096058-C (CA)
Title: Optical fiber ferrule connector having enhanced provisions for tuning
Inventor: STEPHENSON DANIEL LEE
IPC: G02B6/36
Filed: 1993-05-12
Granted: 1997-05-06
Abstract: An optical connector (20) includes a ferrule assembly (22) which is adapted to be received in a plug frame (70). The ferrule assembly is held in the plug frame by a cable retention assembly (40) which is adapted to be secured to said plug frame.  A leading end of the plug frame is symmetrical in an end cross-section which is normal to a longitudinal axis of the connector.  After the ferrule assembly has been assembled to the plug frame, the direction of any eccentricity of the plug passageway or of an optical fiber terminated by the ferrule assembly is determined.  Then the plug frame is assembled to a housing of a grip (90) such that the direction of eccentricity is aligned with a key (92) of the grip.  The plug frame is capable of being assembled to the grip notwithstanding the rotational orientation of the plug frame with respect to the grip.  An optical connection between optical fibers terminated by two connectors is made by inserting the grip of each of the two connectors into a coupling housing (100) so that the keys are aligned.  Advantageously, portions of the connector may be factory assembled which facilitates field use of the connector to terminate optical fiber.
Patent CA-2096231-C (CA)
Inventor: WILLEMS WILHELMUS PAULUS
IPC: F23M20/00
Filed: 1991-11-19
Granted: 1997-01-21
Abstract: A burner for pulsating combustion comprises an explosion chamber (1) which on the inlet side connects onto a supply tube (2) for combustion air and a supply tube (7) for fuel and on the outlet side is connected to one or more discharge tubes (10) for the combustion gases. The invention has for its object to provide a burner for pulsating combustion which produces considerably less noise than the known devices. According to the invention this object is achieved by providing the explosion chamber with a widening (8) on the outlet side and connecting the discharge tube(s) to this widening at or close to the periphery thereof.
Patent CA-2101443-C (CA)
Title: Method and apparatus for dispensing flexible sheet material
Inventor: FORMON JOHN S
IPC: B26F1/20
Filed: 1992-02-26
Granted: 1996-06-18
Abstract: A dispenser (10, 200) for cutting and feeding a web (W) of flexible sheet material is described in which a feed roller (30, 212) carries a web cutting blade (40, 226) and a spring (104, 290) con-nected to an eccentric crank (102, 288) affixed to the feed roller (30, 212). While initial movement of the web (W) through the mechan-ism and actuation of the cutter (40, 226) to effect partial separation of the web material (W) is produced by the user's pull on the web (W), such pull also loads the spring (104, 290) which, upon unload-ing, delivers the cut web material from the dispenser (10, 200). The spring (104, 290), following arresting rotation of the feed roll (30, 212) and exhaust of stored energy, operates, upon continued pull-ing of the web (W), to impart gradually increasing stress on the un-cut web segments until they break, whereupon the uncut segments of web material (W) are efficaciously severed and the leading end (WE) of the succeeding web material is automatically positioned where it can be readily grasped by a subsequent user.
Patent CA-2101615-C (CA)
Inventor: HAIGHT ROBERT E
IPC: F16H59/04
Filed: 1993-07-29
Granted: 1995-04-18
Abstract: A shift lever assembly includes plate having a plurality of intersecting slots formed therein, including fore-and-aft extending directional gear slot and a transverse extending neutral slot.  The neutral slot has a recess formed on one side thereof.  A lever has a movable shaft received in and guided in the slots.  A latch member is engagable with the shaft to releasably hold the shaft in the recess and prevent inadvertent movement of the shaft from the neutral slot into the directional gear slot.  A shaft spring is biased to urge the shaft away from the directional gear slot.  A latch spring is biased to urge the latch member towards the recess so that the shaft, latch member, the latch spring and recess cooperate to deter inadvertent movement of the shaft in a direction generally parallel to the neutral slot and out of the recess and out of the neutral slot.  The latch member is pivotal away from the recess by the shaft when the shaft is moved away from the recess and in a direction generally transverse to the neutral slot, to thereby permit movement of the shaft in a direction generally parallel to the neutral slot and out of the recess and out of the neutral slot.
Patent CA-2106541-C (CA)
Inventor: YAMAMOTO TORU
IPC: A44B18/00
Filed: 1993-09-20
Granted: 1997-02-04
Abstract: A warp-knit cloth for a surface fastener, com-prising: a foundation design knitted of pile knitting yarns and foundation yarns so as to form pile loops, which serve as engaging elements of the surface fastener, on wales; a marquisette design in which in-laid yarn extend in the wale direction and course direction so as to form squared meshes, which serve as vents, between said wales.
Patent CA-2109591-C (CA)
Title: Synthesis gas generation startup process
Inventor: SAY GEOFFREY RHYS
IPC: C01B3/44
Filed: 1992-05-14
Granted: 2000-09-19
Abstract: Start-up procedure for FBSG process involving starting up under oxidizing conditions with Al2O3 (no Ni) particles in the bed and the switching to reducing conditions prior to adding Ni/Al2O3 catalyst. This procedure will prevent catalyst particle agglomeration.
Patent CA-2110788-C (CA)
Title: Internal thread forming apparatus
Inventor: WU FAN-PING
IPC: B23G1/12
Filed: 1993-12-06
Granted: 1998-02-17
Abstract: An internal thread forming apparatus is used to form an internal thread in a nut blank and includes a machine base which has a rear end that is provided with a gate, and a guide channel which is mounted on the machine base and which has an open rear end that is aligned with the gate, an open front end, and a radial inlet formed adjacent to the open front end to permit the passage of a nut blank therein. A spindle has a front end that is provided with a tap and that extends through the gate and into the guide channel. An end seat is disposed adjacent to the rear end of the machine base and is formed with an axial passage that is aligned axially with the spindle. The end seat has a front end that is provided with a rotatable chuck. A push rod is extended into the guide channel via the open front end so as to push the nut blank toward the spindle and so as to push the spindle to extend into the chuck in order to enable the latter to clamp releasably and drive rotatably the spindle to commence threading of the nut blank. The push rod is retracted from the guide channel after threading of the nut blank to produce a formed nut has been accomplished. A push pin is employed so as to push the spindle away from the chuck and cause movement of the formed nut from the spindle to the push pin, and is retracted into the axial passage so as to remove the formed nut therefrom.
Patent CA-2114730-C (CA)
Title: Apparatus for accepting and retaining an information card
Inventor: KURGAN JEFFERY F
IPC: G07F7/10
Filed: 1993-05-26
Granted: 1998-02-24
Abstract: The present patent application discusses a low profile information card chamber (107) used in a radiotelephone (101). The information card chamber (107) accepts, retains and makes electrical contact to an information card (105). The information card chamber (107) makes electrical contact to the information card when the information card (105) is properly inserted (105). The electrical contacts are located on the lower platform (213) of the information card chamber (107). Upon inserting the information card (105) into the information card chamber (107), the information card (105) is translated away from the electrical contacts (205). Prior to being fully inserted, the information card (105) is translated towards the electrical contacts (205). The two translational devices allow an information card (105) to be inserted into the information card chamber (107) without excessive wiping of the electrical contacts (205) by the information card (105).
Patent CA-2117042-C (CA)
Title: Agricultural bagging machine
Inventor: CULLEN STEVEN R
IPC: A01F25/18
Filed: 1994-03-04
Granted: 1998-10-06
Abstract: Agricultural Bagging Machine including a vertically disposed chain feeder positioned above the rotor thereof to move silage downwardly into contact with the rotor. The chain feeder comprises a pair of chain feeder conveyors positioned in a side-by-side relationship.
Patent CA-2117782-C (CA)
Inventor: PFEFFER MARC A
IPC: A61P9/04
Filed: 1993-04-09
Granted: 2008-07-08
Abstract: The invention involves a method for treating a human survivor of a heart attack and provides further improvement in sur-vival following the heart attack by the early initiation and long-term administration of a renin-angiotensin system inhibitor, pref-erably, an angiotensin converting enzyme inhibitor.The inhibitor may be used on its own, or in conjuction with other therapeutic compounds such as .beta. blockers and thrombolytic agents. The preferred inhibitor is captopril.
Patent CA-2123168-C (CA)
Inventor: DO ESPIRITO SANTO ANTONIO FERR
IPC: B60R1/02
Filed: 1994-05-09
Granted: 2004-02-17
Abstract: An "INSIDE REAR-VIEW MIRROR DISPLACING MECHANISM LAYOUT" consists of a mirror plate 1 mounted on a frame 2, articulated on the lower end by a supporting arm 3, the upper end of which is assembled on the vehicle's inside ceiling; said frame 2 contains also a displacement mechanism 4 which is driven through lever 5 placed below and includes a trapezoidal plate 6, the smaller base of which is turned downwards and coupled to an inside end 7 of an axis 8 of lever 5; the intermediate region of said plate 6 is mounted on a transversal crankshaft 9, the ends of which bear on supports of frame 2; the central region of said plate 6 has a seat 11 where the sphere 12 is set and which is included on the inferior end of the supporting arm 3 and the upper bigger base of said plate 6 is articulated in frame 2.
Patent CA-2125297-C (CA)
Title: Pneumatique a plusieurs secteurs independants amovibles et renforces
Inventor: GERGELE JEAN
IPC: B60C15/02
Filed: 1993-02-22
Granted: 2004-02-17
Abstract: L'invention concerne un pneumatique formé de plusieurs secteurs (S) pneumatiques, indépendants les uns des autres, destinés à être montés sur une mème jante (J), mais démontables individuellement de ladite jante (J), gonflables individuellemen t ou ensemble. Les secteurs (S) comprennent au moins une armature de renfort (4) ancrée à au moins une tringle circonférentielle (10) dans chaque bourrelet circonférentiel, qui est le bourrelet de montage sur la jante (J), l'armature de renfort (4) étan t radialement juxtaposée à une armature de renforcement (8) de la bande de roulement (2). Les tringles circonférentielles (10) sont liées à des tringles méridiennes (11) situées dans les flancs (50) des secteurs (S) circonférentiellement adjacents.
Patent CA-2126858-C (CA)
Inventor: DRISCOLL JAMES N
IPC: B65H5/06
Filed: 1993-02-16
Granted: 1999-09-14
Abstract: Document diverter assemblies (6, 8) are spaced transversely for altering the flow of documents through a handling apparatus. Each of the diverter assemblies have respective housing (16, 18) which can pivot about axes (B). Each housing supports respective sets of idle rolls (24, 26, 28, 30) which contact a drive roller (36). Compliance members, in the form of O-rings are mounted on the idle rollers.
Patent CA-2133381-C (CA)
Inventor: YETTER KARL
IPC: H02G3/10
Filed: 1994-09-30
Granted: 2005-04-19
Abstract: A partition for dividing an electrical or telecommunications device box having a substantially planar dividing member with at least one retaining member extending therefrom for cooperating with a mounting post on the base member of the box to support the dividing member substantially perpendicularly to the base member. The partition is removably retained in the box by the retaining member frictionally engaging the post. The retaining member has a specific amount of interference to cause the spring action in the material and to create gripping forces around the mounting post.
Patent CA-2140919-C (CA)
Inventor: MOELLERING DAVID J
IPC: B26D7/26
Filed: 1993-07-29
Granted: 1996-10-08
Abstract: A ball lock punch and die retainer comprises a single piece body (10) of high strength through hardened tool steel having a relieved (30) flat bottomed (24) bore-hole (22) for the punch. The exterior sidewall (40) of the retainer opposite the end having the punch borehole (22) is substantially half-cylindrical.
Patent CA-2141665-C (CA)
Title: Soupape etanche a l'air
Inventor: THOMASON BRIAN D
IPC: F16K1/226
Filed: 1994-06-22
Granted: 1999-04-27
Abstract: Vanne hermétique (8) pour circuit d'air composée d'un corps annulaire (20) muni d'une plaque circulaire (12) de vanne placée à l'intérieur et d'une paire de vannes (34 et 50) espacées axialement définissant une chambre (28) d'air frais. L'une desdites vannes (50) comporte une plaque tronconique présentant un bord extérieur radial (54) venant au contact du corps (20) de vanne de façon à former un joint étanche. De l'air propre sous une pression supérieure à celle des émissions polluées s'écoulant dans la vanne est conduit par une tubulure (26) vers une chambre extérieure (22). L'air propre s'écoule de la chambre (22) à travers une série d'ouvertures pratiquées dans le corps (20) de vanne vers la chambre intérieure (28). En cas de défaut d'étanchéité de la vanne (8), l'air propre emprunte le cheminement des fuites et rejoint un conduit (10), ce qui garantit que les émissions polluantes ne franchissent pas la vanne (8).
Patent CA-2144100-C (CA)
Inventor: FRIEDRICH JAROMIR
IPC: F16L55/17
Filed: 1995-03-07
Granted: 1999-01-19
Abstract: The assembly is designed to contain a leak arising from a damaged gasket positioned between the flanges of a pipe connection forming part of a pipeline carrying pressurized fluid. The assembly comprises a pair of steel half rings that are hinged together at one end so that they can be mounted to the connection in the form of a split ring. Each half ring contains an elongate seal element having an annular configuration. The ends of the half rings are lapped so that the split ring can be contracted with the ring ends overlapping. A chain and clamp assembly is tightened around the split ring to compress the seal elements into sealing engagement with the flanges. Shoulders formed by the half rings squeeze the abutting seal element ends together to effect a seal at the split ring breaks.
Patent CA-2147057-C (CA)
Inventor: TAKESHIMA MASAHIRO
IPC: H04N9/68
Filed: 1995-04-13
Granted: 2000-07-04
Abstract: A skin-color-area detector generates a skin-color-area signal from an input video signal.  An average luminance level detector generates an average luminance level signal from a luminance signal.  These signals are transmitted to a skin-color-corrector to generate skin-color-correction signals.  At a saturation controller and at a luminance signal corrector which each receive the skin color corrections signals, skin-color is optimumly corrected.  Thereby reproduction quality of skin-color signals in video signals is enhanced.
Patent CA-2150013-C (CA)
Title: Electronic book
Inventor: MCTAGGART STEPHEN I
IPC: G09B5/06
Filed: 1993-11-04
Granted: 2000-05-16
Abstract: An electronic book comprising a plurality of leaves, each leaf comprising pages of printed material bound at one edge to form a spine, with electrical circuits formed in each leaf. A common electronic circuit such as a speech generator and/or controller cooperates with the electrical circuits on each of the various pages, connected to the electrical circuits in the leaves through conductive paths through the spine of the book. The electrical circuits in the leaves include electrical elements such as switches, and sensory output devices (e.g., thermochromic devices, light emitting diodes, thermo-olfactory devices, electrochromic devices, and the like). The electrical elements are associated with particular portions of the printed material so that the particular portions can be selectively highlighted or emphasized (e.g., designated by actuation of a visual or olfactory device and/or text read). A particularly advantageous switch structure formed integral to the page employing standard printing techniques, the bonding of LEDs directly into the printed circuit, and various advantageous methods of construction of the book are also disclosed.
Patent CA-2155804-C (CA)
Title: Flexible conveying system
Inventor: MEIER JACQUES
IPC: B65H29/04
Filed: 1995-08-10
Granted: 2006-01-03
Abstract: Process for operating a piece-goods transporting apparatus such as printed products wherein the process products occurring individually one after the other are received at a receiving position by transporting members circulating endlessly in a guide of the transporting apparatus. They are then conveyed via a buffer section to a discharge position. In this arrangement, the transporting members are each retained at the receiving position until a product has been received, thereby ensuring that each transporting member leaves the receiving position with a received product. The transporting members run through the discharge position periodically in cycles and discharge a product to the processing section in each cycle.
Patent CA-2156926-C (CA)
Title: Correction des codes d'information video auxiliaire dans les signaux video brouilles par suppression de la synchronisation
Inventor: TULTS JURI
IPC: H04N7/171
Filed: 1994-02-25
Granted: 1999-04-27
Abstract: Un système de traitement d'information vidéo auxiliaire, telle qu'une information à titre fermé, comporte la possibilité de détection d'erreurs de parité invalides pouvant être générées par des effets de distorsion de signal vidéo provoqués par un brouillage de signal vidéo par suppression de synchronisation. La distorsion par suppression de synchronisation n'exerce aucun effet sur l'affichage vidéo mais peut modifier le bit paritaire du deuxième de deux caractères à titre fermé dans chaque apparition de ligne 21 de champ 1 provoquant des erreurs de parité invalides. Les erreurs de parité dans le premier caractère, sur lequel la distorsion par suppression de synchronisation n'exerce aucun effet, indiquent si des erreurs de parité valides existent dans le deuxième caractère. Si aucune erreur de parité n'apparaît dans le premier caractère, les erreurs de parité apparaissant dans le deuxième caractère sont considérées invalides.
Patent CA-2157995-C (CA)
Inventor: DAVIES PETER M
IPC: E21B10/20
Filed: 1995-09-11
Granted: 2006-07-11
Abstract: A method of manufacturing a rock bit leg from a rough bit leg forging is disclosed whereby multiple machining operations are performed by a six-axis CNC machining center. Three dimensional datum surfaces are initially formed on a rough leg forging. The rough leg forging is then mounted in a holding fixture. The fixture, including the leg forging, is secured to the six-axis CNC machining center. A three dimensional datum reference from the leg forging is set into the NC function of the six-axis machining center.      The rough leg forging includes a pair of extended flanges coincident with the 120° leg surfaces. The leg flanges mount to complimentary surfaces formed on the leg holding fixture, thus securing the leg within the fixture without interference of any of the machining processes.      The CNC machining center performs a majority of the material removal operations to prepare the leg for subsequent assembly through manipulation of the six interactive axes of the CNC machining center. The machining center positions the rough forging of the rock bit leg in any and all attitudes necessary to accomplish each of the separate material removal operations thereby maintaining extremely close tolerances since the leg forging remains indexed to and secured within the fixture throughout all of the machining processes.