baber/WOPTO huggingface dataset:
Patent CA-2045946-C (CA)
Title: Method and apparatus for local function key control of scrolling on certain computer workstations
Inventor: EAGEN STEPHEN T
IPC: G06F3/048
Filed: 1991-06-28
Granted: 1995-01-17
Abstract: Abstract of the Disclosure A method and apparatus for distributing the processing of cursor-independent scrolling functions,  between a host processor  and  a  workstation  via  a  workstation  control interface, the workstation control interface being connected to a plurality of workstations, wherein the host processor formulates  a  data  stream  incorporating  scrollable  panel data,  definitions  of  cursor-independent  scrolling  keys, definitions  of  scrolling  increments,  and  definitions  of scroll indicators;  the data stream is transmitted to the workstation control interface, which may be embodied in a workstation  controller  (or  PWS),   and  the  workstation controller (or PWS) formulates a display screen image for transmission to a workstation to which it is connected.  A cursor-independent  scrolling  request  received  from a workstation is received by the workstation controller  (or PWS)   and   processed   for   scrolling   without   further communication with the host processor.
Patent CA-2047163-C (CA)
Title: Optical disk
Inventor: OHTA KENJI
IPC: G11B7/243
Filed: 1991-07-16
Granted: 1995-05-16
Abstract: An optical disk including a transparent plastic substrate, a recording film formed on one side surface of the  substrate,  a  first  protective  film  covering  the recording film, and a moisture-impermeable film formed on the other side surface of the substrate with or without the presence of an intermediate film.
Patent CA-2049139-C (CA)
Title: Electrostatic discharge detector and display
Inventor: CAMPBELL JEFFREY D
IPC: G01R29/24
Filed: 1991-08-13
Granted: 2000-06-27
Abstract: A detector for detecting electrostatic discharge events in an electronic component, assembly or system and including a display element which produces an immediate indication on exposure to a change in voltage level, an electrostatic discharge sensor, and circuit means for connecting said sensor to said display element.     In one embodiment, the detector and the board or other device to be monitored are mounted in a housing haying a visual access window with the display element of the detector viewable through the access window and with the detector positioned at the electronic device being monitored.
Patent CA-2049591-C (CA)
Title: Direction indicating fault indicator
Inventor: SCHWEITZER EDMUND O JR
IPC: H02H3/04
Filed: 1991-08-21
Granted: 1999-09-21
Abstract: A fault indicator for indicating the occurrence and relative direction of a fault current in a power transmission or distribution system includes a rotatably mounted indicator flag. The indicator flag is actuated 90° clockwise or counterclockwise from a central reset position to up-line indicating or down-line indicating trip positions by a compact magnetic pole piece assembly having three radially extending magnetic pole segments which interact with four magnetic poles on a magnetic armature rotatably coupled to the indicator flag. A pair of magnetic windings magnetize the pole segments upon the occurrence of a fault current to rotate the flag from the reset position. A second pole piece and winding directionally actuated in response to the direction of the fault current determines the direction of rotation of the indicator flag to indicate whether the fault is upline or downline relative to the indicator.
Patent CA-2050709-C (CA)
Title: Method for purification of ibuprofen comprising mixtures
Inventor: ZEY EDWARD G
IPC: C07C51/43
Filed: 1991-09-05
Granted: 2002-08-20
Abstract: This invention pertains to a method of purifying ibuprofen-comprising reaction product mixtures. The method of purification is based on crystallization of ibuprofen from a hydrocarbon solvent and the discovery that there are impurity complexes in the ibuprofen-comprising reaction product mixtures which cannot be removed by crystallization from a hydrocarbon solvent.      The method of the invention includes at least one step in which the impurity complex in a first ibuprofen-comprising mixture is destabilized or broken up, followed by crystallization of the ibuprofen from a second solution or mixture comprising the first ibuprofen-comprising mixture, whereby the impurities which were previously complexed can than be removed from the ibuprofen by the crystallization of ibuprofen from a solvent.
Patent CA-2056110-C (CA)
Title: Public address intelligibility system
Inventor: KLAYMAN ARNOLD I
IPC: G10L21/02
Filed: 1991-11-25
Granted: 1997-02-04
Abstract: Intelligibility  of  a  human voice  projected  by  a loudspeaker in an environment of high ambient noise is enhanced by amplifying formants (26, 28, 30) of the voice. Because intelligibility of the human voice is derived largely from the pattern of frequency distribution of voice formants, selective enhancement of the formants provides much more readily understandable speech in the presence of high  background  noise  with  but  minimal  increase  in amplitude  of  the  speech. Formants  are  processed  by individually selecting them in a spectrum analyzer (42, 124)  and individually amplifying  (50,  58,  74,  80,  140 through 146) and selectively weighting (56, 57, 78, 82) them before recombining processed formants and unprocessed base band voice components  (130)  to provide an output signal (116) of greatly improved intelligibility.
Patent CA-2057860-C (CA)
Title: Immunoactive peptides and antibodies and their use in anti-allergy treatment
Inventor: STANWORTH DENIS R
IPC: C07K16/00
Filed: 1990-06-15
Granted: 2000-05-09
Abstract: An immunogen comprising a residue of a histamine-releasing peptide comprising a cationic N-terminal head and a hydrophobic C-terminal tail, together with a residue capable of eliciting antibodies against said peptide whilst inhibiting histamine release by said peptide is useful in anti-allergy treatment. Preferably the histamine-releasing peptide is of formula:  Lys-Thr-Lys-Gly-Ser-Gly-Phe-Phe-Val-Phe, optionally amidated at the C  terminal. Antibodies to the histamine-releasing peptide are useful for passive immunisation.
Patent CA-2061637-C (CA)
Title: Dental furnace
Inventor: OPPAWSKY STEFFEN
IPC: A61C13/20
Filed: 1992-02-21
Granted: 1997-12-30
Abstract: A dental furnace for the thermal treatment of dental materials and dental parts at temperatures above 100°C, particularly for baking, characterized by an insulated furnace chamber, which can be sealed with a door, whereby the furnace chamber consists of a housing suspended in an inner chamber made of metal, which is supported by an outer housing made up of several parts, whereby the furnace door is fastened to the inner chamber with hinges. In order to produce a dental furnace which is simple, light and can be constructed at a low cost, and which meets requirements up to 400°C for similar baking furnaces, the outer housing is made of plastic components, which are freely suspended on support pins and connected to the inner housing, whereby the plastic components are formed to create a shell, so that at least the side walls form a hollow space between themselves and the inner housing.
Patent CA-2061837-C (CA)
Title: Disposable wound treatment electrode
Inventor: WEAVER BENSON C
IPC: A61B5/274
Filed: 1992-02-25
Granted: 2002-12-17
Abstract: A disposable wound treatment electrode is disclosed that is usable in combination with a releasable connector for enabling effective delivery of an electrical signal to a patient. The electrode and connector are configured so that the connector provides a readily accessible tool to facilitate disposal of the electrode after use, and a method of utilization for effecting this end is also disclosed. The electrode includes an electrically non-conductive cover sheet, an electrically conductive and preferably non-metallic dispenser formed at least in part by carbon and having a portion, preferably integral with the remainder of the disperses, that extends through an aperture in the interior portion of the cover sheet, and a non-adhering wound contact sheet. In addition, protectors are provided for an integral portion of the dispenser extending through the cover sheet, a retainer is provided to receive an electrically conductive skin moisturizer, and/or the peripheries of the cover sheet and the wound contact sheet are sealed together to form a closed envelope.
Patent CA-2064529-C (CA)
Title: Magnetic eccentric motion motor
Inventor: JACOBSEN STEPHEN C
IPC: H02K37/10
Filed: 1992-03-31
Granted: 1998-09-29
Abstract: An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in the stator along the closed surface pathway, circuitry for successively energizing the electromagnetic elements to cause them to attract and/or repel the armature so that it rolls along the closed surface pathway, and a coupler mechanism for coupling the armature to the utilization mechanism so that as the armature is caused to roll, the utilization mechanism is powered by the operation of the motor.
Patent CA-2065884-C (CA)
Inventor: TAKAHATA SIROU
IPC: C09K3/14
Filed: 1992-04-13
Granted: 1999-08-10
Abstract: A frictional material is made of cloth which is impregnated with an impregnating agent such as a bituminous material, synthetic resin, etc.  The cloth is woven by a multiple yarn made by twisting single yarns with reinforcing metal wires.  The single yarn consists of a center core in the form of a roving or a yarn of inorganic fibers such as glass fiber, rock wool, ceramic fiber, etc. and a covering element in the form of a sliver of organic fibers such as staple fiber, aromatic polyamide fiber, flame-resistant fiber, etc. The frictional material obtained is excellent in physical strength and in resistance against heat, effective for preventing dispersion of dust and irritation to human bodies, and advantageous from the viewpoint of cost.
Patent CA-2067196-C (CA)
Title: Fluorescent tube heating and starting circuit
Inventor: ROTH HARALD
IPC: H05B41/232
Filed: 1990-10-16
Granted: 2000-06-06
Abstract: A circuit, having a split primary transformer, for controlling the warm-up, ignition and normal operating stages of a fluorescent tube initially applies in phase voltages to opposite sides of the split primary transformer during a warm-up stage; during an ignition stage and during the normal tube operation, out of phase voltage waveforms are applied to opposite sides of the split primary of the transformer.
Patent CA-2070373-C (CA)
Title: Foot comforter
Inventor: MILLER MURRAY G W
IPC: A47G9/02
Filed: 1992-06-03
Granted: 1995-04-04
Abstract: This   invention   pertains   to   a   generally rectangular comforter device for use with a bed mattress to selectively retain the natural body heat of a user in proximity to the users feet.  The device does not require an external heating source.   The comforter comprising a cuffless envelope of backed fibrous insulating material such as simulated sheepskin, the envelope opening fully at one longitudinal edge thereof to admit the users feet, and includes a plurality of mattress engaging retention straps to constrain the envelope in a predetermined position on the mattress.
Patent CA-2071611-C (CA)
Title: Bearing assembly for a downhole motor
Inventor: WENZEL WILLIAM
IPC: F16D41/066
Filed: 1992-06-18
Granted: 2000-09-12
Abstract: An improvement in a bearing assembly fox a downhole motor consisting of a plurality of notches in one of an exterior surface of an inner mandrel and an interior surface of a housing. The notches are upwardly inclined from a base. A plurality of pins are disposed between the exterior surface of the inner mandrel and the interior surface of the housing. The pins contact the notches such that the pins travel up the incline on the notches upon relative rotation of the housing and the inner mandrel in a first direction and travel down the incline on the notches upon relative rotation of the housing and the inner mandrel in a second direction. The pins become wedged into locking engagement with the notches thereby preventing relative rotation of the inner mandrel and the housing as the inner mandrel rotates in one of the first direction and the second direction.
Patent CA-2071963-C (CA)
Title: Process for making concentrated low calorie fruit juice
Inventor: STROBEL RUDOLF GOTTFRIED KARL
IPC: A23L2/08
Filed: 1991-02-04
Granted: 1996-11-05
Abstract: This invention relates to an efficient process for separating and recovering aroma and flavor volatiles from fruit or veg-etable juices and for lowering the amount of sugar in juices. The process involves removing the aroma/flavor volatiles from juice by forming a microaerosol by spraying juice at a temperature of from 45°C to 110°C through a nozzle having a diameter of about 100 microns to 1200 microns at a velocity of 100 m/sec. to 250 m/sec. and into a vacuum chamber at 5 mm to 200 mm Hg and at temperatures of from 10°C to about 55°C and then treating the recovered juice fraction with a yeast. The alcohol formed during this fermentation reaction is removed by distillation, preferably by the same aerosolization process as the volatiles are re-moved. The aroma and flavor volatiles are returned to the juice to provide a good tasting low calorie fruit juice.
Patent CA-2078314-C (CA)
Inventor: WENK JOSEPH H C
IPC: B65D77/18
Filed: 1992-09-15
Granted: 1998-09-01
Abstract: A tamper-proof seal for sealing a bag or the like is provided.  The seal includes a housing having a strap engagement device, and a strap coupled to the housing.  The strap engagement device includes a locking member that lockingly engages a surface of the strap when the strap is inserted into the housing.  The locking device is movable towards the strap upon an attempt to disengage the strap from the locking means.  The strap includes a pair of adjacent protuberances located near the housing.  When the strap is tightened about a bag, the protuberances clench the bag material while providing a convenient slot in which a knife can be inserted.  A loop member may be coupled to the housing.    The loop member includes an opening through which the strap is inserted prior to inserting it within the housing.
Patent CA-2083027-C (CA)
Title: Formation of protein microparticles by antisolvent precipitation
Inventor: DEBENEDETTI PABLO G
IPC: C07K14/62
Filed: 1992-11-16
Granted: 2004-01-20
Abstract: Microparticles of a material are formed by bringing a supercritical antisolvent gas into contact with a solution of the material in a solvent at a controlled rate operable to expand the solution and precipitate the material. The small particulate material formed in accordance with the invention is particularly useful in the preparation of devices that provide control of the rate of drug release.
Patent CA-2086232-C (CA)
Title: Process for preparing sulfur from a fuel off-gas and at least one acid gas containing hydrogen sulfide; thermal reactor
Inventor: KVASNIKOFF GEORGES
IPC: B01D53/34
Filed: 1992-04-24
Granted: 2000-10-03
Abstract: A combustible effluent is burned in surplus air in a first area (2) of a thermal reaction stage (1), a first acidic gas flow is injected (13, 43) into the combustion fumes in said area (2), a second acidic gas flow is partially burned (9) in a second area (3) of the thermal stage which receives gases from said first zone (2), and with a controlled amount of air (11, 12) so as to achieve an H2S:SO2 molar ratio of 2:1 in the output gases from a Claus catalytic stage (19) which processes the gas flow from the thermal stage (1), and the acidic gas flow rates between the two areas (2, 3) are adjusted to obtain a flame temperature of over 850 °C in said second area (3).
Patent CA-2086265-C (CA)
Inventor: HANSEN ARNE
IPC: E04B1/61
Filed: 1991-06-28
Granted: 2000-12-12
Abstract: Dispositif de serrage profilé en forme de U dans lequel un ou deux éléments profilés intérieurs (1, 6) sous forme de ressorts de préhension s'appuient élastiquement contre un objet et l'assujettissent. Lorsque l'objet a une forme mâle (7, 9) adaptée à la forme femelle dudit dispositif de serrage, l'ensemble peut servir à solidariser deux objets (10, 11) l'un à l'autre. De préférence, le dispositif de serrage est constitué d'un matériau homogène, et un effet de serrage et/ou une jointure sont obtenus sans recours à des outils ou à des pièces de petites dimensions.
Patent CA-2087094-C (CA)
Title: Torsion spring and adjustable mounting for a chair using such a spring
Inventor: LIE TORE
IPC: A47C1/032
Filed: 1990-08-20
Granted: 1993-12-14
Abstract: ABSTRACT             Straight  type  torsion  spring being clamped together  at  two  ends,  which  ends  being  rotatable  in relation to each other against the torsion spring force, the  torsion spring comprising at  least  four  identical torsion  rods  abutting  laterally  along  their  entire extension, thereby utilizing the relatively large twisting angle of the small dimension torsion rods combined with the total torsion force of the torsion spring rods, each of which independently being twisted helically when activating the spring.  Adjustable mounting for a chair, preferably an office chair, comprising the torsion spring of the above defined type, a seat frame, a back frame and a mounting bracket,  a tilting lever being clamped to a pipe which other end is clamped to one end of the torsion spring, the upper end of the lever being articulated to the front portion of a seat frame, the rear portion of which being articulated to a back seat frame to which rear end the back seat is secured, and the forward end of the back seat frame being articulated to the bracket, the position of which articulation  being   adjustable   thereby   enabling   an adjustment of the back seat frame angle.
Patent CA-2089821-C (CA)
Title: Gripper for a conveying device for conveying single-sheet or multiple-sheet printed products
Inventor: WEBER BRUNO
IPC: B65H29/04
Filed: 1993-02-18
Granted: 2000-01-11
Abstract: A gripper for use in a conveying device which conveys printed products is disclosed. The gripper has two gripper parts which are mounted so as to be freely pivotable on a shaft. The first gripper part can be pivoted between an open position and a clamping position.      This purpose is served by a closing lever which is seated on the shaft so as to be fixed against rotation. The rotary movement of the shaft is transmitted via a resting part, which is connected to said shaft so as to be fixed against rotation, and a compression spring which is supported on the resting part and, at the other end, acts on the first gripper part. The closing lever supports a follower roller which is mounted so as to be freely rotatable and interacts with closing links or cams. A locking device is provided for locking the first gripper part in the clamping position. In order to allow the first gripper part to close in any pivot position of the gripper and with the gripper moving in opposite directions, the closing lever encloses an angle a which is less than 90° with the first gripper part.
Patent CA-2091136-C (CA)
Title: Copper complex bactericide/fungicide and method of making same
Inventor: TAYLOR EVELYN J
IPC: A01C1/06
Filed: 1993-03-10
Granted: 2001-01-02
Abstract: There is disclosed an improved copper complex bactericide/fungicide and a method of making and using the same. The improved bactericide/fungicide is prepared by forming an aqueous solution of a partially neutralized, water-soluble polycarboxylic acid having a molecular weight of between approximately 1,000 and 300,000 and a pH of between approximately 3 and 9. To this aqueous solution is added a copper-containing compound which when combined with said aqueous solution releases copper (a) ions which will form a water-soluble complex with said partially neutralized polycarboxylic acid. The water-soluble copper complex is applied to plants to prevent or inhibit bacterial and fungal disease growth thereon.
Patent CA-2096910-C (CA)
Inventor: PASCHKE EDWARD E
IPC: C08K3/34
Filed: 1993-05-25
Granted: 2006-01-10
Abstract: Neat and filled polyphthalamide resins are improved in processability when blended with polypropylene and a carboxylated polyolefin resin. Filled polyphthalamides, particularly glass-filled polyphthalamide formulations, are significantly benefited, and glass fiber-filled molding resin formulations of this invention comprising high levels of fiber are more readily moldable than polyphthalamide formulations without the polyolefin components comprising the same and even lower levels of glass-fiber.
Patent CA-2101713-C (CA)
Inventor: JANOSKI RONALD JOHN
IPC: E04D11/02
Filed: 1993-07-30
Granted: 2007-03-27
Abstract: The present invention relates to low slope roofing systems, particularly in commercial (as opposed to residential) roofing applications. More specifically, the fastener-free roofing system of the present invention is directed to the use of a curing adhesive composition which will simply and safely secure roofing insulation to a roofing deck without the need for mechanical fasteners.
Patent CA-2103410-C (CA)
Title: Ink-cooled thermal ink jet printhead
Inventor: SECCOMBE DANA
IPC: B41J2/365
Filed: 1993-11-18
Granted: 2004-08-03
Abstract: An ink-cooled inkjet print cartridge (20) has an efficient heat exchanger (22) located on the back side of the substrate (30) that eliminates the need for heat sinks. All ink (38) flowing to the firing chambers (40) goes through the heat exchanger (22). The geometry of the heat exchanger (22) is chosen so that almost all the residual heat absorbed by the printhead substrate (30) is transferred to the ink (38) as it flows to the firing chambers (40). Additionally, the pressure drop of the ink flowing through the heat exchanger (22) is low enough so that it does not significantly reduce the refill rate of the firing chambers (40). The heat exchanger (22) can have one or more active heat exchanger sides. The heat exchanger has little thermal mass itself and significantly reduces the thermal mass of printhead by eliminating the need for a heat sink. This reduces the warm-up time of the printhead to a fraction of a second.
Patent CA-2104519-C (CA)
Inventor: EMERICH DWIGHT E
IPC: C09K5/20
Filed: 1993-08-20
Granted: 1998-09-08
Abstract: There is disclosed an improved corrosion inhibitor system  including  an  oxazoline  for  an  intermediate  heat transfer  medium  for  an  indirect  cooling  heat  transfer assembly and introduced in an amount of from 100 to 15,000 ppm to one part of the medium.
Patent CA-2106943-C (CA)
Inventor: KISHINO KATSUMI
IPC: H01J1/34
Filed: 1993-09-24
Granted: 1999-06-29
Abstract: An  electron  emitting  element  including  a  semiconductor opto-electronic  layer  having  a  split  valence  band  and capable of emitting a beam of spin-polarized electrons from an emitting surface thereof upon incidence of an excitation laser radiation upon the emitting surface, and a reflecting mirror   formed  on  one   of   opposite   sides   of   the opto-electronic layer remote from the emitting surface and cooperating with the emitting surface to effect multiple reflection therebetween of the incident laser radiation. The emitting element may be provided with a semiconductor light modulator element for  modulating the intensity of the laser radiation incident upon the opto-electronic layer. A laser source may be formed integrally with the emitting element and disposed on the side of the opto-electronic layer remote from the emitting surface.