baber/WOPTO huggingface dataset:
Patent NO-178413-C (NO)
Inventor: MCDONOUGH JAMES M
IPC: F23Q2/28
Filed: 1992-06-22
Abstract: A selectively actuatable child resistant lighter device is disclosed which includes a body defining reservoir for containing a combustible gaseous medium such as butane, and having a valve arranged to be selectively actuated between a normally closed position and an open position which permits the exit of the gaseous medium. Such child resistant lighter can selectively produce sparks at a location proximate to the gaseous medium exit to ignite the gaseous medium. A safety mechanism normally prevents actuation of the valve to the open position. Such child resistant lighter device embodies a resiliently releasable safety latch which prevents the actuation of the valve actuator to the open position. The safety latch is selectively movable to a plurality of positions out of interference with the valve actuator, so that the gaseous medium may be released and ignited by the sparks. The safety latch is resiliently structured and mounted such that once a flame is produced and the valve actuator is released, the safety latch returns to its closed or locked position to prevent actuation of the valve to the open position by prevention of the pivotal motion of the valve actuator. To "re-use" the lighter, the safety latch must again be moved to one of the open or unlocked positions so that the valve actuator can be opened for subsequent ignition of the gaseous medium. Such mechanism is difficult for a young child to light, but is capable of actuation by adults.
Patent CA-2005049-C (CA)
Inventor: KOUNO YOSHIAKI
IPC: C04B41/45
Filed: 1989-12-11
Granted: 1994-04-19
Abstract: ABSTRACT OF THE DISCLOSURE         A method of fabricating a cylindrical ceramic laminated body comprising the steps of forming a ceramic green sheet on a carrier film, laminating the ceramic green sheet on a base plate having a flat upper surface, releasing the ceramic green sheet from the carrier film, applying a joining agent on the ceramic green sheet and then winding the ceramic green sheet while releasing it from the base plate, thereby obtaining a cylindrical laminated roll.
Patent CA-2013690-C (CA)
Title: Capacitive sensor of displacement and twist angle sensor including at least one such capacitive sensor
Inventor: CHOISNET JOEEL
IPC: G01L3/10
Filed: 1990-04-03
Granted: 2000-01-25
Abstract: Disclosed are capacitive sensors designed to measure the very low-amplitude displacements of two zones with respect to each other. It comprises a capacitive element formed by two elements that are fitted to each other by a shrink-on method, and respectively having two facing cylindrical surfaces, the longitudinal axes of which are parallel to one and the same given direction, these surfaces bearing electrodes, at least some of which have limits parallel to the given direction. These two supports are respectively rigidly connected to the two zones, so much so that the capacitance of the capacitors formed by the electrodes of the facing surfaces varies as a function of the relative displacements of the two zones perpendicularly to the given direction. Thus the measurement of the displacements perpendicularly to this given direction is done by a measurement of variation in capacitance.
Patent CA-2016575-C (CA)
Title: Method of aiding cessation of smoking
Inventor: AKIN FRANK J
IPC: A61K31/135
Filed: 1990-05-11
Granted: 1996-12-03
Abstract: Individuals are aided in smoking cessation by administering internally phenylpropanolamine.
Patent CA-2016905-C (CA)
Title: Seal for rotating torque tube with seal valve
Inventor: GOMRINGER GARY G
IPC: F16J15/32
Filed: 1990-05-16
Granted: 1994-07-05
Abstract: A device  for  establishing  a fluid-tight  seal  around a rotatable drive shaft has a housing which  is formed with a straight bore through which the drive shaft is positioned.  The bore has a narrow portion, a wide portion and a tapered portion between the narrow and wide portions.  A beveled annular seal is positioned in the wide portion of the bore around the drive shaft with the bevel abutting the side of the tapered portion of the bore.   An actuator is engaged to the housing and is movable to urge the seal against the tapered portion of the bore to constrict the seal around the drive shaft and establish a  fluid-tight seal  between the drive shaft and the annular seal.   The  housing  further  includes an expanded conforming portion.  A flexible seal valve is positioned in the expanded portion  to  receive  the drive shaft.   The seal valve has a deformable  wedge-shaped  portion  terminating  in  a  normally closed slit when the shaft is removed.  The seal valve prevents leakage when the shaft is inserted into or withdrawn from the housing.
Patent CA-2019939-C (CA)
Title: Hydrophobic nucleic acid probe
Inventor: URDEA MICHAEL S
IPC: C12Q1/68
Filed: 1990-06-27
Granted: 2000-05-23
Abstract: A polynucleotide which has been modified by a hydrophobic moiety so that the polynucleotide attaches to a substrate by the hydrophobic moiety, rather than by a portion of the polynucleotide, thereby allowing the polynucleotide to be available for hybridization.
Patent CA-2022151-C (CA)
Title: Flame retardant bitumen
Inventor: GRUBE LOUIS L
IPC: C08L95/00
Filed: 1990-07-27
Granted: 2001-12-04
Abstract: This invention relates to a stabilized, flame retardant roofing mat or sheeting impregnated with a composition comprising, modified asphalt and between about 9 and about 50 wt % of colemanite. The invention also relates to the novel flame retardant composition which can be employed for treating roofing reinforcement and building siding material.
Patent CA-2023656-C (CA)
Title: Method of feeding back exhaust gases in oil and gas burners
Inventor: BALSIGER BENNO
IPC: F23N5/24
Filed: 1990-08-20
Granted: 2001-04-10
Abstract: The formation of nitrogen oxides during the operation of burners for solid, liquid, and gaseous fuels is reduced by means of an exhaust gas feed-back system. The exhaust gases are injected into a combustion chamber through openings provided in the region of stabilizer via a flame pipe and, by choice, also around the flame pipe. Preferably, the combustion air as well as the exhaust gases are activated by an active aerosol. The exhaust gas feed-back is effected by means of a longitudinally slidable adaptor pipe and an adaptor pipe shoulder enclosing the flame pipe at least partly. The regulation of the exhaust gas streams is achieved by displacing the adaptor pipe and the adaptor pipe shoulder.
Patent CA-2025552-C (CA)
Title: Paper web threading apparatus for rotary printing press
Inventor: SUZUKI KUNIO
IPC: B41F13/03
Filed: 1990-09-17
Granted: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE    A paper web threading apparatus for a rotary printing press comprises a paper web threading member guide provided along a paper web threading path of the printing press extending from a paper web supply section to a position just in front of a folding section; a paper web threading member pooling section provided downstream of the paper web threading path; a paper web threading member which is located over the whole length of the paper web threading path extending from the most upstream position thereof to the paper web threading member pooling section upon commencement of the paper web threading operation and which is run along the paper web threading member guide towards the paper web threading member pooling section during the paper web threading operation; a paper web retaining member provided on the paper web threading member for securing the paper web to the threaded along the path; and at least one paper web threading member driving unit for running the paper web threading member along the paper web threading member guide.  Thus, this paper web threading apparatus enables a paper web to be threaded along the paper web threading path smoothly at nearly constant speed without applying uneven tension to the paper web.
Patent CA-2029502-C (CA)
Title: Headlight for motor vehicle
Inventor: ENDO MASAYASU
IPC: F21S8/10
Filed: 1990-11-07
Granted: 1993-12-14
Abstract: ABSTRACT OF THE DISCLOSURE    A vehicular headlight which does not require a large amount of  equipment  to properly adjust the angle of  the azimuthal direction of emission of light from the headlight. A reflector within the body of the headlight is adjustable relative to a vertical axis and horizontal axis to control the direction in which light is emitted from the headlight.  The headlight further includes aiming devices for measuring the aiming angle relative to the vertical axis and horizontal axis.
Patent CA-2040799-C (CA)
Title: Tape guide device
Inventor: SAITO ETSURO
IPC: G11B15/61
Filed: 1991-04-18
Granted: 2000-06-20
Abstract: A tape guide, device comprising a pipe-shaped guide member for guiding a tape, an ultrasonic vibrator for vibrating the guide member by standing waves, and a support member for holding the guide member, wherein one end of the ultrasonic vibrator is kept free while the other end thereof is attached fixedly to a vibrational loop on the peripheral surface of the guide member, and vibrational nodes of the guide member are held by the support member, hence stabilizing the characteristic of standing-wave vibration.
Patent CA-2044216-C (CA)
Title: Curable composition comprising a crystallisable polymer
Inventor: NIELD ERIC
IPC: C08G59/00
Filed: 1991-06-10
Granted: 1998-04-21
Abstract: A composition comprising a polymer in dispersion in a non-aqueous continuous diluent, in which the polymer phase comprises a crystallisable polymer, selected from polyesters, polycarbonates and polyamides, a curable solvent for the crystallisable polymer which is miscible with the continuous diluent, and optionally, an auxiliary  solvent, and  in which  the curable solvent is at least partially reacted with the crystallisable polymer, so as to form a stabiliser for the dispersion.
Patent CA-2045743-C (CA)
Title: Fiber optic gyro using stepping pulse phase modulating signals to compensate for opto-electric waveform distortion
Inventor: ISHIGAMI MOTOHIRO
IPC: G01C19/02
Filed: 1991-06-26
Granted: 1997-01-07
Abstract: In a fiber optic gyro, a clockwise propagating light ray and a counterclockwise propagating light ray propagate in an optical fiber coil in a time of ?, and are given a bias phase modulation signal by a phase modulator connected at an end of said optical fiber coil, in such a manner that a phase shift increasing stepwise by .pi./2 radian every time interval T is applied n steps and then a phase shift decreasing stepwise by .pi./2 radian every time interval T is applied n steps, to the phase modulator. A signal generator generates a bias phase modulation signal every time interval T according to an oscillation frequency of a voltage controlled oscillator. An interference light beam of said clockwise and counterclockwise propagating light rays is converted to an electric signal by an opto-electric converter and, if the time interval T does not coincide with a propagation time, a positive- or negative-going pulse is created in an output of the opto-electric converter during a period for the bias phase modulation signal to increase or decrease. Such a positive- or negative-going pulse is detected by a pulse detector and, based on a detected result, an oscillation frequency of the voltage controlled oscillator is controlled so that said pulses no longer occur.
Patent CA-2053130-C (CA)
Inventor: FILIPI CHARLES JOSEPH
IPC: A61B17/30
Filed: 1991-10-10
Granted: 1998-06-02
Abstract: A technique for invaginating the esophagus at the gastroesophageal junction is disclosed, as well as an invagination device useful in the described technique.  The invagination device includes an introducer guide which has an outside diameter approximating that of the esophagus and a plurality of needle-receiving lumens extending to its outer diametric surface.  The invagination device also has an engagement assembly which includes 10 needles, each having a retracted position in which they lie within the needle-receiving lumens of the introducer guide, and an extended position in which they extend out of the lumens and project radially from the guide for engagement with the esophagus at the gastroesophageal junction.  The invagination device is introduced transorally into the esophagus, its engagement assembly is activated to place the needles in their extended position in engagement with the esophagus, and the engaged invagination device is advanced the toward the stomach to fold the attached esophagus beyond the gastroesophageal junction.  A remotely operable fastening assembly, which has been introduced into the stomach through an operating channel/insufflation port, is then operated to fasten the invaginated gastroesophageal junction to the surrounding involuted fundic wall.  Finally, the needles are retracted back into their needle-receiving lumens and the invagination device and the fastening assembly are removed from the body of the patient.  This minimally-invasive technique accomplishes the formation of a new valve between the esophagus and stomach, thus preventing acid reflux.
Patent CA-2059972-C (CA)
Title: Method to prevent chemical (hcfc) attack of plastic foodliner from foam insulation chemicals
Inventor: BENFORD ARTHUR E
IPC: B29C39/10
Filed: 1992-01-24
Granted: 1994-12-13
Abstract: An  insulated  cabinet  wall  structure  for  a refrigeration apparatus includes an outer wall defining an inner surface and a plastic liner defining an outer surface. A laminated film is adhered to the liner sheet outer surface, the film comprising in laminated sequence an inner adhesive film layer for adhering to the liner sheet outer surface, a film of high elongation material, an additional adhesive film layer, and an outer barrier film layer.  A foamed-in-place insulation is firmly bonded to the outer wall inner surface and the laminated film barrier film layer, the barrier film layer both preventing  stress  cracking of  the  liner  and diffusion  of  insulation  foam  blowing  agents from  the insulation to the liner sheet.
Patent CA-2066443-C (CA)
Title: Parallel i/o newtork file server architecture
Inventor: ROW EDWARD JOHN
IPC: H04L29/08
Filed: 1990-08-20
Granted: 2003-10-21
Abstract: A file server architecture is disclosed, comprising as separate processors, a network controller unit (110), a file controller unit (112) and a storage processor unit (114). These units incorporate their own processors, and operate in parallel with a local Unix host processor (118). All networks are connected to the network controller unit (110), which performs all protocol process-ing up through the NFS layer. The virtual file system is implemented in the file controller unit (112) and the storage processor (114) provides high-speed multiplexed access to an array of mass storage devices. The file controller unit (112) controls file infor-mation caching through its own local cache buffer, and controls disk data caching through a large system memory which is acces-sible on a bus by any of the processors.
Patent CA-2067100-C (CA)
Title: Extending dynamic range of stored image database
Inventor: GIORGIANNI EDWARD JOSEPH
IPC: G06T1/00
Filed: 1991-09-11
Granted: 1998-08-11
Abstract: The dynamic range of a digitized image database is extended to permit shifting of encoded pixel values without 'clipping', and to provide a limited window of values into which specular highlights may be encoded and stored. Digital codes into which an image scanner output has been mapped by a scene balance mechanism are converted into a set of reduced-range digital codes of the same resolution but having a smaller range of image content values than the dynamic range of the digitized image data base. The code conversion mechanism operates to convert a maximum value of 100 % white reflectance to an encoded value that is less than the upper limit of the dynamic range of the database to allow for the placement of specular highlights that are beyond the 100 % white reflectance maximum and to accommodate shifts in the digitized imagery data at both the high and low ends of the range.
Patent CA-2068405-C (CA)
Title: Locking device for bidirectionally foldable step ladders
Inventor: CHANG WAN-LI
IPC: E06C1/383
Filed: 1992-05-11
Granted: 1995-02-21
Abstract: A locking device for preventing bidirectionally foldable step ladders from folding when in an unfolded position, the step ladders being the type including two pairs of U-shaped side rails and a plurality of foldable steps linked by braces to a plate slidably received within respective side rails. The locking device is pivotally attached within a side rail and co-operates with a bracket fixed to the plate to prevent the plate from moving upward when the step ladder is unfolded.
Patent CA-2068757-C (CA)
Inventor: SWILLEY WILSON H
IPC: E01B25/26
Filed: 1992-05-15
Granted: 2003-01-21
Abstract: An improved switch for an overhead trolley track system, which is adaptable to be inserted between intersecting tracks and adjustable for handling trolley movement from one track to another. The improved switch includes a unique pivot and shaft assembly whereby the hub member attached to the track lift piece rotates or pivots freely about an outer shaft without applying force to an inner shaft mounted to the track, thereby avoiding constant maintenance, malfunctions, and system interruption.
Patent CA-2071563-C (CA)
Title: Injection nozzle for a mould
Inventor: GUZZINI VINICIO
IPC: B29C45/28
Filed: 1992-06-18
Granted: 1996-12-03
Abstract: An injection nozzle for a mould comprises a straight sprue and a shutoff valve accommodated in a suitable seat which obliquely intersects the sprue and opens into the gate. During injection the head of the shutoff valve leaves the sprue clear. After injection the head of the shutoff valve shuts off the gate.
Patent CA-2073303-C (CA)
Title: Lunch holder
Inventor: POMROY JAMES F
IPC: B65D43/16
Filed: 1992-07-07
Granted: 1996-08-13
Abstract: Lunch holder having first and second sections which are hingedly connected together along one side thereof in clamshell fashion, a divider which separates one of the sections into a plurality of compartments for holding different food products, and a lid which is hingedly connected to the one section along a second side thereof for movement between covering and uncovering positions relative to the compartments.  In one presently preferred embodiment, the two container sections, the divider and the lid are fabricated as a unitary structure of a semi-rigid plastic material.
Patent CA-2075140-C (CA)
Title: Paper towel dispenser ¬swing bottom|
Inventor: MORAND MICHEL
IPC: A47K10/32
Filed: 1992-07-31
Granted: 1995-01-17
Abstract: A dispenser  for  dispensing  paper  towelling  from a roll.  The dispenser has a casing for holding the roll.          The casing has an open bottom.  A bottom member is mounted on the casing.  The bottom member is movable between a closed position where it substantially closes the open bottom of the casing,  and defines, with the front of the casing, an outlet for the towelling; and an open position where it allows access into the casing to enable the leading edge of the paper towelling to be grasped should it end up within the casing.
Patent CA-2075752-C (CA)
Title: Increasing lift on helicopter rotor blades and airplane propellers
Inventor: KREPAK JOHN C
IPC: B64C27/20
Filed: 1992-08-12
Granted: 1994-10-04
Abstract: ABSTRACT A rotary airscrew having a central hub with coaxial first and second counter-rotating drive shafts, a first set of a plurality of non-lift blades connected to the first drive shaft for rotation to be rotated for moving air therewith, a second set of a plurality of primary airfoil blades connected to the second drive shaft, to be rotated counter to the rotation direction of the plurality of non-lift blades, and spaced apart from the non-lift blades with a small clearance distance to allow non-contacting counter-rotation, and a ring for supporting the first and second sets of blades with a small clearance distance between the ends as they are rotated.
Patent CA-2090983-C (CA)
Title: Reinforced metal box culvert
Inventor: WILSON MICHAEL W
IPC: E01F5/00
Filed: 1993-03-04
Granted: 1996-09-24
Abstract: A reinforced metal box culvert is provided which has the standard crown, opposing sides and opposite curved haunches. The culvert is characterized in having continuous corrugated metal sheet reinforcement secured to at least the crown of the culvert and extends the length of the culvert which is effective in supporting the load. The corrugated reinforcement has a profile which abuts the crown corrugations with the troughs of the reinforcement being secured to the crests of the corrugated crown. The corrugated reinforcement sheet has a curvature complementary to the corrugated crown to facilitate securement. The continuous reinforcement, as secured to the culvert in an uninterrupted manner, provides an optimum load carrying capacity for selected extent of reinforcement provided by the reinforcement metal sheets.
Patent CA-2095076-C (CA)
Title: Braking device particularly for skates
Inventor: PELLEGRINI ALFRED JR
IPC: A63C17/06
Filed: 1993-04-28
Granted: 1995-11-28
Abstract: A  braking  device  for skates includes  a  rod  member associated  with the quarter of the shoe; the lower  end  of the rod member has a braking member adapted to interact with a wheel on the ground when the quarter is tilted back.
Patent CA-2098213-C (CA)
Title: Method of preparing trialkyl-tin hydrides
Inventor: STEWEN ULRICH
IPC: C07F7/22
Filed: 1993-06-11
Granted: 1997-12-16
Abstract: The invention concerns a method of preparing trialkyl-tin hydrides by a process that ensures outstanding long-term stability.  bis-[Trialkyl-tin) oxides are dissolved in a solvent that mixes only to some extent if at all with water and converted with an aqueous solution of sodium borohydride stabilized with a base.  The product is obtained by phase separation and optionally by distillation.  The trialkyl-tin hydride is obtained almost quantitatively with a yield of more than 95 %.
Patent CA-2099605-C (CA)
Inventor: ZIPPERLEN SABINE
IPC: C08G18/58
Filed: 1991-10-25
Granted: 2001-02-27
Abstract: Afin d'obtenir un enduit de fond à deux composants en résine époxyde et en poussière de zinc qui, pour des raisons écologiques, ne requiert pas ou guère de solvant, le zinc en poudre ou en paillettes réactif dans l'eau est dispersé dans un liant en résine époxyde (composant A) exempt d'eau et émulsifiable dans l'eau. Immédiatement avant son application, le composant A est mélangé à un durcisseur en polyamine (composant B) dilué ou dissous dans l'eau.
Patent CA-2100042-C (CA)
Inventor: STURRUS PETER
IPC: B21D7/08
Filed: 1993-07-07
Granted: 2004-11-23
Abstract: An end bumper for vehicles constructed from a single sheet of high-tensile strength steal roll-formed to provide two side-by-side tubular sections. Each section has a front wall, an outer side wall, a rear wall, and an inner side wall, the inner side walls being spaced one from the other and connected together by a web roll-formed integrally with the inner side walls. The front walls each have extended ends overlapping and abutting the web. The extreme ends of the front walls also form an abutting puncture which is welded together and also welded to the web. The bumper has a sweep formed by a sweep-forming mechanism having curvilinear external and internal mandrels conforming to the inner configuration and outer configuration of the bumper so as to provide a passageway therebetween for receiving the bumper. The bumper is passed through the passageway while the roll-forming of the bumper takes place upstream of the mandrels. The inner mandrel is supported by an elongated member extending from the internal mandrel to a support member located where the bending of the terminal lateral ends of the sheet have not yet been completed. A cutting mechanism cuts the bumper at predetermined lengths after the sweeping of the bumper has been completed to continuously form in succession a series of bumpers during the roll-forming of the sheet.