baber/WOPTO huggingface dataset:
Patent CA-2004765-C (CA)
Title: Procede de production de revetements de sols ou de murs et produits obtenus
Inventor: MARCHAL DANIEL
IPC: B29C43/30
Filed: 1989-12-06
Granted: 2003-11-11
Abstract: L'invention est relative à un procédé de fabrica- tion de revêtements de sols ou de murs et à de tels revête- ments comportant au moins une feuille supérieure (21), une feuille inférieure (23) chargée et flexibilisée, et un décor interposé entre lesdites feuilles, essentiellement consti- tuées d'une matière dérivée d'un polymère de propyléne.
Patent CA-2006130-C (CA)
Title: Black chromium plating bath useful for solar selective coatings
Inventor: GRIPS VATIA KRISHNAMURTHY WILL
IPC: C25D3/08
Filed: 1989-12-20
Granted: 1998-05-12
Abstract: The composition disclosed is an improved black chromium plating bath useful,  for example, for solar selective coatings.  The bath comprises  an  aqueous  solution  of  sulphate-free  chromic  acid containing nitrate, borate and fluorosilicate ions.   Such a bath can  be  employed  at  room  temperature  or  higher  e.g.  in  the temperature range 30°C to 50°C and at a low current density e.g. 0.07 to  0.28 A cm2,to obtain a good quality black chromium deposit which is quite coherent and has a high absorptivity to emissivity ratio e.g. about 8 .
Patent CA-2012089-C (CA)
Title: Smoking device
Inventor: KORTE STEVEN JAMES
IPC: A24D1/22
Filed: 1990-03-13
Granted: 1995-12-12
Abstract: A smoking device includes a cylindrical reticulated tube having an open air inlet at one end and an open air outlet at the other end filled with an aerosol generating material.          An insulating collar is concentrically located with the reticulated tube covering a portion of the tube and spaced closer to the air outlet end of the tube than to the air inlet end of the tube. A tobacco plug is coaxially located within the tube with the portion of the length of the tube between the collar and air outlet end embedded within the tobacco plug.  A nucleating chamber is located at the end of the tobacco plug opposite the insulating collar, and a reticulated wall is located at the interface of the tobacco plug and nucleating chamber.  A filter plug is coaxially located with the tobacco plug at the other end of the nucleating chamber.  A ribbon of fuel material is spirally wound around the reticulated tube between the air inlet end of the reticulated tube and the insulating collar, and a non-combustible sleeve is concentrically located over at least the spirally wound fuel ribbon.
Patent CA-2013494-C (CA)
Title: Method for dividing a frame structure in a mobile station
Inventor: PERSSON BENGT YNGVE
IPC: H04W28/06
Filed: 1990-03-30
Granted: 2000-06-13
Abstract: A method for dividing a frame structure for a mobile telephone system which operates in half-duplex, i.e. in which the transmission and reception of signals in a mobile takes place within mutually separate time-slots. Each frame includes three time-slots, each intended for transmission and reception.  According to the method, the frame structure is divided so that transmission first takes place in a transmission time-slot.      Reception then takes places in a reception time slot which is separate from the transmission time-slot. subsequent to reception (RX), the frame structure includes an idle time (t1) which remains until further transmission takes place in the next-following frame. The method enables the frequency synthesizer of the mobile in the reception direction to be set to a channel different to the reception channel and then to be reset accurately to the reception channel.
Patent CA-2016880-C (CA)
Title: Herbicidal 3-(3,4,5,6-tetrahydrophthalimido)-cinnamic esters
Inventor: WUERZER BRUNO
IPC: C07D209/48
Filed: 1990-05-16
Granted: 2001-01-02
Abstract: 3-(N-3,4,5,6-Tetrahydrophthalimido)-cinnamic esters of the general formula I   (see figure I) where n is 1 or 2 and the substituents have the following meanings:      R1 is hydrogen or fluorine, R2 is halogen, R3 is hydrogen, halogen or C1-C4-alkyl, R4 is hydrogen, substituted or unsubstituted C1-C6-alkyl, C3-C7-cycloalkyl, C3-C6-alkenyl, C3-C6-alkynyl or benzyl, R is C1-C4-alkyl, processes for their manufacture, and herbicidal agents containing them.
Patent CA-2020733-C (CA)
Title: Non-destructive semiconductor wafer probing system using laser pulses to generate and detect millimeter-wave signals
Inventor: SMITH THANE
IPC: G01R31/311
Filed: 1990-07-09
Granted: 1995-05-23
Abstract: Electrical devices are characterized by optically triggering an electrical signal onto the device and then optically sampling the electrical signal waveform on the device.
Patent CA-2032156-C (CA)
Inventor: GHIRALDI ANDREA
IPC: G16H20/40
Filed: 1990-05-29
Granted: 2001-12-11
Abstract: Le procédé de gestion de paramètres relatifs à un traitement de dialyse, consiste à procéder, à l'intérieur d'une machine de dialyse, au moins aux opérations suivantes durant un traitement de dialyse : a) sélectionner une pluralité de paramètres relatifs au traitement de dialyse ; b) établir une pluralité de conditions opérationnelles de fonctionnement de la machine de dialyse en relation avec le déroulement du traitement dans le temps et/ou avec l'évolution des valeurs des paramètres par rapport à des domaines prédéterminés de variations de ces paramètres ; c) mettre en mémoire, en correspondance avec la réalisation de chacune des conditions opérationnelles, les valeurs prises à cet instant par un certain nombre des paramètres. Grâce à ce procédé et au dispositif pour sa mise en oeuvre, il est possible de sélectionner et de mémoriser, en vue de sa transmission à distance, un nombre réduit de paramètres significatifs du déroulement d'une séance de dialyse.
Patent CA-2033865-C (CA)
Title: Continuous action machine for compacting ballast
Inventor: THEURER JOSEF
IPC: E01B27/20
Filed: 1991-01-09
Granted: 1999-10-19
Abstract: A continuously advancing track working machine for compacting ballast comprises a self-propelled machine frame supported by undercarriages an the track for mobility in an operating direction and a track stabilization assembly vertically adjustably mounted on the machine frame between the undercarriages. The track stabilization assembly comprises drives for vertically adjusting the assembly, oscillatory rolling tools arranged for engaging the rails, vibrators for oscillating the rolling tools, and spreading drives for pressing the rolling tools against the gage sides of the rails. The machine further comprises a leveling reference system including a leveling reference base having a leading and a trailing end point in the operating direction, and a measuring axle carrying a pickup indicating the track level measured by the axle, the measuring axle rolling on the track off-center between the reference base end points and rearwardly of the track stabilization assembly.
Patent CA-2038074-C (CA)
Title: Image restoration and faulty sensor detection and compensation system and process
Inventor: ANDREWS ROLAND L
IPC: H04N7/18
Filed: 1991-03-12
Granted: 1996-01-30
Abstract: The scene-based image restoration system provides maximum local area contrast, to enhance the utility of video images generated from the input of a Forward Looking Infrared (FLIR) system.  While DC restored images display good ground/sky distinction for "Nap of the Earth" flying techniques, the use of scene data for image restoration is better suited for target detection against uniform backgrounds, e.g., the sky or sea.  Scene-based image restoration may be employed along with an alternative of DC restoration, thereby offering the pilot the option to choose the advantages of each method under various circumstances.         The video image is further improved by detecting faulty sensors and compensating for them in generating the video display.  By adjusting each of the working sensors to an optimum output relative to the other sensors, and eliminating defective sensors from the image generation process, an improved video image results.
Patent CA-2038821-C (CA)
Title: Low profile steerable power drive unit
Inventor: PRITCHARD ROBERT J
IPC: B65G13/06
Filed: 1991-03-21
Granted: 1993-08-17
Abstract: LOW PROFILE STEERABLE POWER DRIVE UNIT               ABSTRACT OF THE DISCLOSURE           A low profile steerable power drive unit assembly  (10)  comprises a cylindrical frame member (22) having an annular ledge (42) extending inwardly therefrom.  The ledge (42) includes a flat upper race (46), a frustoconical lower race (48) and gear teeth (82) disposed along the ring-like interface between the upper  (46)  and lower  (48)  races.   A support bracket  (24)  is rotatably  supported  in the  frame member (22) about a vertical axis (A) by a plurality of  outwardly  extending  wheels  (34,  36)   freely rollable along the upper race (46) and the lower race (48).   A motor  (52)  is  supported  in the support bracket (24) and, through a gear train, operatively engages the gear teeth  (82)  on the ledge  (42)  to rotate the  support bracket  (24)  within  the  frame member (22).  The support bracket (24) receives two modular   power   drive   units   in   side-by-side orientation.    The  frame  member  (22)  includes  a subjacent mounting surface  (30)  which  is  attached directly to a floor structure (12) for supporting the assembly  (10)  entirely  above  the  floor  structure (12).
Patent CA-2041084-C (CA)
Title: Eccentric gear backlash take-up mechanism for seat latches
Inventor: NOTTA ADOLF
IPC: B60N2/235
Filed: 1991-04-24
Granted: 1994-07-26
Abstract: A vehicular  seat back recliner hinge comprises first and second hinged members that are mutually rotatably arranged about a common pivot. The first member has a gear rack arranged thereon which is adapted to be engaged by a pinion spur gear.   The pinion  spur gear is  fixed on an adjacent  ratchet  wheel  spur  gear  in  mutually  dependent rotatable relation about a common concentric shaft secured on a  second  hinged  member.    A  selected  one  of the above-mentioned shaft and pivot are eccentrically mounted on a rotatable bushing arranged on a corresponding one of the members.  The bushing is operable to selectively position the pinion spur gear and the rack in first mutually proximal and second mutually spaced positions.  A locking pawl arranged on a second of the members is adapted to lockingly engaged with and unlockingly disengage from the ratchet wheel spur gear, and the locking pawl is operably positionable in selected first locking and second unlocking positions corresponding to concurrent first mutually proximal and second mutually spaced positions of the rack and pinion mentioned above.   In this way, the backlash between the rack and pinion is reduced when the locking pawl,  the ratchet wheel spur gear,  the pinion spur gear, and the rack are serially engaged in mutually secured relation to resist relative rotation between the two hinged members, about their common pivot.  In addition, this arrangement permits  backlash  to be  increased between the pinion  spur  gear  and  the  rack when the  locking pawl  is serially disengaged from the  ratchet wheel spur gear,  in order to ease the relative rotation of the two hinged members about their common pivot.
Patent CA-2041892-C (CA)
Inventor: KOLBERG THOMAS
IPC: C23C22/60
Filed: 1991-05-06
Granted: 2000-10-03
Abstract: In a process of forming conversion coatings on surfaces of zinc and zinc alloys, in which the surfaces are contacted in a first stage with a solution which contains at least two different polyvalent metal ions and also contains such an amount of complexing agent that the polyvalent metal ions are kept in solution, and which has a pI3 value of,at least 11, and the surfaces are treated in a succeeding stage with a post rinsing solution, a succeeding stage comprises a treatment with a post rinsing solution which contains aluminum, zirconium and fluoride and has been adjusted to a pH value not in excess of five.      According to desirable features of the process the total concentration of Al + Zr + F is adjusted to a value between 0.1 and 8.0 g/l, preferably between 0.2 and 5.0 g/l, and the Al : Zr : F mole ratio is adjusted to (0.15 to 8.0) : 1 : (5 to 52) or to (0.15 to 0.67) : 1 : (5 to 7).      The treatment is suitably carried out for 1 to 120 seconds preferably 1 to 30 seconds, and at a temperature of 20 to 80°C, preferably 20 to 50°C.      The process can desirably be used for a pretreatment before a succeeding painting, film laminating or adhesive coating operation.
Patent CA-2042073-C (CA)
Title: Helicopter transporter
Inventor: ROACH WILLIAM W
IPC: B64F1/22
Filed: 1991-05-03
Granted: 1994-09-13
Abstract: ABSTRACT OF THE DISCLOSURE               A maneuverable, wheeled, steerable vehicle is used for transporting  helicopters  of  the  type  having  landing skids.   Such helicopters typically have cross bars under the body proper, with downward-curving  arms  to  the  skids.   The  invention  includes  two mutually parallel booms which extend from the vehicle body parallel and  close  to  the ground.   One of the booms  is laterally movable toward and away from the other boom, which is fixed to the vehicle frame.   In use,  the booms are laterally spaced;  the vehicle then goes  forward  to  slide  the  booms  under  the  cross  bars  of  the helicopter body.  Lift bars attached to each boom then raise the helicopter  up so  that  the  vehicle  can  transport  it. The  booms include a gang of small, hydraulically swivelled steering wheels at the ends distal the vehicle.  Each lift bar swings upward on double parallel pivot arms at either end of each boom.  The pivot axes are horizontal.  When the helicopter  is lifted off the ground by the lift bars, the two large wheels on the main vehicle body are driven through a differential gear to move the vehicle and the helicopter.          Power is hydraulic throughout; a small engine drives the hydraulic pump.
Patent CA-2042469-C (CA)
Inventor: SOLHEIM KARSTEN
IPC: A63B59/00
Filed: 1991-05-13
Granted: 1997-12-23
Abstract: A  grip for use on the extending end of the shaft of a golf club is provided with an especially configured array of longitudinally extending grooves which are in direct opposition to the  rotation of the golf club about the longitudinal axis of  the golf  club  shaft  to  resist twisting of the  golf  club  in  the golfer's hand resulting from mis-hitting of a golf ball in an  off center location toward the toe or heel of the golf club head.  The grip may have a visual indicator by which the rotational  position of  the  golf  club when being held in a  golfer's  hands  can  be determined by  visual  alignment of the grip  with  the  golfer's hands.
Patent CA-2043970-C (CA)
Title: Treating an underground formation
Inventor: KING ANTHONY PHILIP
IPC: E21B43/32
Filed: 1991-06-05
Granted: 2003-04-08
Abstract: A method of treating an underground formation comprising contacting the underground formation with a resin system comprising between 15 and 30 %v of monomeric and/or polymeric organic polyepoxides having more than one epoxy group per molecule, between 5 and 20 %v of a curing agent, between 75 and 25 %v of a polyalkylene glycol alkyl ether and between 5 and 25 %v polyalkylene glycol
Patent CA-2044485-C (CA)
Title: High pressure gas line breakaway connector
Inventor: PAULSEN R F GRANT
IPC: F16L37/28
Filed: 1991-06-13
Granted: 1999-11-16
Abstract: An automatic tension-activated in-line connector for a pressurized hose is provided with pressure compensation means by which the necessary tension to effect decoupling is rendered less responsive to resistance created by high line pressures.
Patent CA-2046647-C (CA)
Title: Vortex tube used to supply lphv air to spray apparatus
Inventor: LARSON JOHN C
IPC: B05D1/02
Filed: 1990-01-17
Granted: 2002-08-13
Abstract: A method of spraying a coating onto a substrate using low pressure, high volume air is disclosed. More specifically, the novel step of using a vortex tube to supply the low pressure, high volume air to a spray gun is disclosed. The use of the vortex tube results in an inexpensive system, that can be used in electrically hazardous areas, and allows very precise control of air temperature.
Patent CA-2047697-C (CA)
Title: Use of selected ester oils of low carboxylic acids in drilling fluids
Inventor: NEUSS MICHAEL
IPC: C09K8/36
Filed: 1990-03-01
Granted: 2001-07-31
Abstract: The invention describes the use of selected esters, fluid at room temperature and with flash points above 80°C, of C1-5-monocarboxylic acids and mono- and/or polyfunctional alcohols as the oil phase, or a component of the oil phase of invert drilling muds which are suitable for environment-friendly development of petroleum or natural gas deposits and contain in a continuous oil phase a dispersed aqueous phase together with emulsifiers, weighting agents, fluid-loss additives and preferably further conventional additives. In a further embodiment the invention relates to invert drilling fluids of the type described, which are characterized in that the oil phase contains esters from C1-5-monocarboxylic acids with mono-and/or polyfunctional alcohols preferably in admixture with other components from the class of ecologically acceptable compounds.
Patent CA-2048633-C (CA)
Title: Modular corrugator
Inventor: WEPPERT RAINER
IPC: B29C48/09
Filed: 1990-08-16
Granted: 1999-07-06
Abstract: A corrugator for ribbing pipes comprising two synchronously circulating chains of mold halves, guide means for the mold halves having an input zone in which the associated mold halves are brought into engagement with each other, a molding zone in which a central channel is provided for guiding the engaging mold jaws and an output zone in which the mold halves are again separated from each other, as well as return guides for the mold halves on the path between the output and input zones and cooling means for cooling at least the central channel with a coolant, comprises a plurality of hollow profile modules for forming the molding zone, each module being provided with a central cavity for the cooling and two lateral guides, in each case two modules are arranged in pairs joining each other transversely of the production direction of the corrugator, the adjoining lateral guides of a module pair form a section of the central channel and the outwardly disposed lateral guides of the module pair form the return guides of said section, and in the production direction of the corrugator a plurality of module pairs are arranged adjoining each other in series.
Patent CA-2050598-C (CA)
Inventor: JANSON KURT
IPC: B23D55/10
Filed: 1990-04-06
Granted: 2001-04-03
Abstract: Arrangement pour contrôler la tension des lames (5, 6) d'une scie à ruban munie d'un aménagement, contrôlé électriquement, pour tendre les lames. Ledit aménagement sert à tendre les lames de manière à régler leur tension au niveau requis. A cette fin, l'aménagement comprend des dispositifs à fonctionnement automatique (8-13) pour déterminer si la tension des lames est optimale ou non pendant le sciage. Ledits dispositifs sont destinés à détecter et à déterminer des paramètres mutuellement différents, tels que la tension spécifique des lames, la linéarité de la coupe, etc. L'arrangement comprend également un microprocesseur (9) qui traite les signaux électriques correspondant aux paramètres détectés. Le microprocesseur est programmé pour envoyer des signaux de commande audit aménagement lorsque le microprocesseur a établi des déviations dans des valeurs de limite programmés, par rapport aux paramètres ou aux fluctuations de ceux-ci, permettant ainsi de régler la tension des lames de manière à réduire lesdites déviations ou fluctuations. L'invention concerne aussi un procédé pour contrôler la tension des lames de scie à ruban.
Patent CA-2053330-C (CA)
Title: Thin film magnetic head
Inventor: KANAI HITOSHI
IPC: G11B5/31
Filed: 1991-10-11
Granted: 1996-02-20
Abstract: A magnetic head of the invention comprises a substrate, upper and lower magnetic films forming a magnetic circuit on the substrate, the magnetic circuit having a narrow portion in width and forming a gap at the end of the magnetic circuit for interacting with a recording medium, and a coil surrounding the magnetic circuit and buried in an insulation layer between the upper and lower magnetic films.  The magnetic head of the invention is characterized in that the magnetic films further comprise a magnetic anisotropy having components of an in-plane (parallel to the magnetic film surface) magnetic anisotropy Hp and a perpendicular (vertical to the magnetic film surface) magnetic anisotropy Hv, and the perpendicular magnetic anisotropy Hv is given to the magnetic film by anyone among utilization of an inverse magnetostriction effect, an induced magnetic anisotropy and a crystalline magnetic anisotropy.
Patent CA-2055460-C (CA)
Title: Alcohol-ester separation by reaction with acetate
Inventor: BOAZ NEIL WARREN
IPC: C12P41/00
Filed: 1991-03-28
Granted: 1997-04-01
Abstract: A process is disclosed for the isolation of an enantiomerically enriched alcohol from a first mixture of an enantiomerically enriched 1-arylsulfonate-2-hydroxy-3-butene and an enantiomerically enriched 1-arylsulfonate-2-acyloxy-3-butene. The process includes the steps of: (a) contacting the mixture with a reagent capable of reacting with said 1-arylsulfonate-2-hydroxy-3-butene to remove the arylsulfonate group and produce a mixture of dihydroxybutene monoesters thereby forming a second mixture con-taining said dihydroxybutene monoesters and unreacted enantiomerically enriched 1-arylsulfonate-2-acyloxy-3-butene; (b) con-tacting the second mixture with reagents capable of hydrolyzing all of the acyl groups in said mixture to hydroxy groups so as to produce a third mixture comprising 1,2-dihydroxy-3-butenes and enantiomerically enriched 1-arylsulfonate-2-hydroxy-3-butene; (c) washing said third mixture with water so as to remove said 1,2-dihydroxy-3-butenes.
Patent CA-2061216-C (CA)
Title: Short stack bearing assembly
Inventor: KUTINSKY DAVID P
IPC: F16C19/16
Filed: 1992-02-14
Granted: 1994-11-08
Abstract: SHORT STACK BEARING ASSEMBLY   ABSTRACT OF THE INVENTION     A mud motor bearing assembly is disclosed for an oil-lubricated downhole drill mud motor  A number of parallel sets of angular contact ball bearings are located between the mandrel and the bearing housing in a sealed, oil-filled chamber to provide all compressive thrust load bearing, extension thrust load bearing and radial load bearing capacity.  Oil filled pistons at each end retard the progress of mud contamination into the inside of the chamber containing the ball bearings.
Patent CA-2064587-C (CA)
Inventor: MOSS LESLIE ROY
IPC: F17C13/08
Filed: 1990-08-02
Granted: 2001-10-23
Abstract: A restraining device fot restraining a round object (13) from rolling. The restraining device (11) comprises a body (15) hav-ing a base (17) for location against a support surface, and an opening (18) capable of expansion and contraction for receiving and clampingly retaining the round object. The base (17) is adapted for and is capable of deformation for maintaining stable con-tact with the support surface upon expansion and contraction of the opening (18).