baber/WOPTO huggingface dataset:
Patent CA-2072428-C (CA)
Title: Floating-well cmos output driver
Inventor: DOBBERPUHL DANIEL W
IPC: H03K19/0185
Filed: 1992-06-26
Granted: 1998-02-24
Abstract: A CMOS bi-directional output driver normally operates at 3.3 volts, but is capable of communicating with devices that operate at 5 volts.  Also described is a floating well output driver that can operate with devices using a power supply voltage of 5 volts.  The driver is described by way of example as being capable of driving 3.3 volts when active, but can tolerate up to 5 volts when disabled.
Patent CA-2077118-C (CA)
Title: Method and apparatus for using hazardous waste to form non-hazardous aggregate
Inventor: KENT JOHN M
IPC: F23J7/00
Filed: 1992-08-28
Granted: 1998-06-09
Abstract: Hazardous waste is formed into non-hazardous non-leaching aggregate by introducing particulate noncombustible material into at least one oxidizer beneath the surface of an accumulation of molten noncombustible material.  It is preferred that the walls of a portion of the apparatus be comprised of a layer of refractory material containing metal pins over a metal-walled, water-cooled vessel.
Patent CA-2079148-C (CA)
Title: Lathe for generating ophthalmic products from blanks, and a method of operating the lathe
Inventor: BRENNAN WILLIAM D
IPC: B23Q1/00
Filed: 1992-09-25
Granted: 2003-12-16
Abstract: A lathe for use in the generation of ophthalmic products from blanks comprises a mechanism for rotating the blank about an axis of rotation. A cutter tool imparts a desired surface configuration onto the rotating blank.      A first moving mechanism moves the cutter tool in a first direction oriented parallel to the axis of rotation of the blank. A second moving mechanism moves the cutter tool in a second direction oriented transverse to the first axis.      A digital electronic system controls the angular displacement of the blank with respect to a reference plane containing the blank, and controls the movements of the cutter tool in the first and second directions. The movements of the cutter tool in the first and second directions, and the angular displacement of the blank about the axis of rotation are all controlled independently of one another by the digital electronic system.
Patent CA-2080673-C (CA)
Inventor: BELLEI TERRANCE A
IPC: H02H3/44
Filed: 1992-10-15
Granted: 2003-08-19
Abstract: An arrangement to coordinate protective devices is provided by defining operation of the instantaneous characteristic portion of an upstream protective device to coordinate with a downstream current-limiting fuse based on the peak let-through current of the downstream current-limiting device, with instantaneous operation being set to occur only above the peak let-through current of the downstream current-limiting fuse. Accordingly, for fault currents which are seen by both the instantaneous device and the current-limiting device and that are within the ratings of the current-limiting device, the upstream device will not respond and the downstream current-limiting fuse will interrupt the fault, as intended.
Patent CA-2081598-C (CA)
Title: Internal combustion engine
Inventor: MERRITT DAN
IPC: F02B19/18
Filed: 1992-10-28
Granted: 2000-08-29
Abstract: An internal combustion engine has at least one set of first and second cylinders (12,14), the first cylinder (12) having a larger swept volume than the second cylinder (14), and respective first and second pistons (16,18) movable in the cylinders. The pistons are coupled together such that they are movable in the cylinders in a cyclic manner at the same frequency. An air inlet (24) and an exhaust outlet open into the first cylinder and a fuel injector (34) provides fuel to the second cylinder. A combustion space (20) is also provided which communicates with both cylinders during at least a portion of the expansion stroke. The second piston has a crown (35) and a body portion (19), with the crown being spaced from and connected to the body portion and having an edge (37) which is relatively small in the axial direction compared to the distance between the crown and the body portion in the axial direction. The combustion space (20) is defined between the piston crown and body portion and a side wall (14a) of the second cylinder. The gap (128) between the crown edge (37) and the cylinder wall (14a) serves to inhibit ingression of fuel into the combustion space (20) until towards the end of the compression stroke. Access means (30) associated with the second cylinder for admitting fuel and/or air to the second cylinder during the induction stroke comprises a port (33) opening into the second cylinder and a valve (31) for controlling port.
Patent CA-2084146-C (CA)
Title: Non-intrusive network-based analysis of facsimile transmissions
Inventor: FULLER RICHARD C
IPC: H04L12/26
Filed: 1992-11-30
Granted: 1999-05-04
Abstract: Non-intrusive monitoring and analysis of real-time facsimile transmissions is accomplished. Analog impairment measurements are made on the high speed page signal in those transmissions and protocol analysis is made on the low speed control messages in those transmissions. These measurements and analysis are a powerful tool for trouble shooting service problems afflicting facsimile transmissions. Real customer traffic can be monitored to detect circuit impairments and to evaluate service being provided. A selected incoming trunk of a central office switch is accessed and a monitoring function with respect to that trunk is established. A signal classification operation is performed, which identifies the presence of a facsimile transmission and what kind of facsimile transmission it is. When the classification operation has determined the presence and nature of a facsimile transmission, a series of non-intrusive impairment measurements is made using the page information sent in the course of the facsimile transmission. Analog transmission impairments are identified along with signal to noise performance. Echo and delay measurements are also taken and the protocols are tracked. The measurement data is collected and analyzed to ascertain whether or not the facsimile transmission was normal. A diagnostic module uses the measurements to determine why any given transmission was abnormal.
Patent CA-2084313-C (CA)
Title: Process for the production of 10beta-h-steroids
Inventor: OTTOW ECKHARD
IPC: C07J33/00
Filed: 1991-06-03
Granted: 2002-12-10
Abstract: Compounds of general formula (III), in which A and B together stand for an additional bond and D stands for a hydrogen atom or B and D together stand for an additional bond and A stands for a hydrogen atom and Y and Y' each stand for a protect-ed keto group and R1 and R4 have the meaning given in the description, can be reduced with an electropositive metal, with-out destroying the aromatic system and the 5,6 double bond, to compounds of general formula (IIa), which can be converted to compounds of general formule (Ia) or (Ib) which are useful in the synthesis of antigestagens.
Patent CA-2086524-C (CA)
Title: Method for manufacturing tee shirts
Inventor: BEVINGTON CHARLES E
IPC: D05B33/00
Filed: 1991-07-03
Granted: 1997-07-15
Abstract: Tee shirts are manufactured from tubular blanks (30) while retained in a fastened stack (20) and transported from station to station for completion of finishing operations. The blanks have bottom ends (34) and two opposite shoulders, the process including stacking a group of tubular blanks in registry with corresponding bottom ends and shoulder locations of successive tubular blanks disposed over one another in a stack. The bottom edges can be preliminarily hemmed. The stack is attached via a fastener (74) which detachably engages an overhead conveyor (90). The fastener is attached at the hemmed bottom end such that the tee shirt blanks in the stack remain in registry as they are processed and recover their registry when hung from the conveyor in a stack after a finishing step. The successive finishing operations at each station are accomplished by processing an endmost tee shirt blank in the stack, clearing the endmost blank and processing the next endmost blank until all the blanks in the stack have had that finishing operation completed. The attached stack is then moved on the conveyor to a next finishing station, and so on until completion.
Patent CA-2086980-C (CA)
Title: Adaptive equalizer and receiver
Inventor: ISHIZU FUMIO
IPC: H04L25/03
Filed: 1993-01-08
Granted: 1999-04-27
Abstract: A receiver capable of effecting frame synchronization control even at the time of initial acquisition and hand off in the presence of frequency selective fading.  The receiver is provided in a demodulator part thereof with a quasi-coherent detector (140), a memory (144) for temporarily storing the output of the quasi-coherent detector, a write address counter (145) for the memory, an incoherent correlator (146) that determines correlation between a received data pattern and a known UW data pattern, a UW tentative detection circuit (147) that is supplied with the output of the address counter and the output of the incoherent correlator, an adaptive equalizer (148) that equalizes the received data stored in the memory by using the output of the UW tentative detection circuit, a UW detector (103) that effects UW position detection on the basis of the equalized data, and a frame synchronization control circuit (150) that effects frame synchronization control on the basis of the output of the UW tentative detection circuit and the output of the UW detector.
Patent CA-2088200-C (CA)
Title: Poly(silethynylenedisiloxane) and method for the manufacture thereof
Inventor: SUZUKI TOSHIO
IPC: C09J183/00
Filed: 1993-01-27
Granted: 1998-08-18
Abstract: Silethynylenedisiloxane polymers are described with repeating units represented by -R1R2SiC~CSiR3R4OSiR5R6O- where R1-R6 independently represent hydrogen atoms, alkyl groups, aryl groups, or alkenyl groups.  The polymers are prepared by reacting a disilylacetylene compound represented by the formula X1R1R2SiC~CSiR3R4X1 and a silane compound represented by the formula X22SiR5R6 where X1 and X2 represent H, OH, OM, or a hydrolyzable group.  X1 and X2 are not identical and are selected so that they undergo a condensation reaction to form a siloxane bond.
Patent CA-2092180-C (CA)
Inventor: KATO TAKESHI
IPC: H01B12/04
Filed: 1992-07-22
Granted: 1996-12-03
Abstract: A manufacturing method wherein a metal sheath is filled with a powder having a composition such that the amounts of Sr, Ca and Cu are larger than conventional so that in addition to the 2223-phase of (Bi, Pb)-Sr-Ca-Cu the phase of Sr-Ca-Cu-O may be precipitated, and then, this metal sheath is subjected to a plastic working, a primary heat treatment, another plastic working, and a secondary heat treatment in this order.  A pinning point based on the phase of Sr-Ca-Cu-O is introduced into the supercon-ductor of the obtained bismuth based oxide superconductive wire material, and thereby, the magnetic field characteristic of the critical current density is improved.
Patent CA-2101524-C (CA)
Title: Inhibiting popcorn polymer formation with esters of inorganic acids
Inventor: SUN HSIANG-NING
IPC: C07C255/08
Filed: 1992-01-24
Granted: 1999-12-07
Abstract: Inhibition of popcorn polymer growth by treatment with an inorganic acid ester. This compound can be admixed with oganic material from which popcorn polymer is formed, or added to a system for the recovery, use or storage of such organic material.
Patent CA-2104028-C (CA)
Title: Imaging system
Inventor: PINHAS HANNA
IPC: G03G15/16
Filed: 1992-01-21
Granted: 2002-08-13
Abstract: Imaging apparatus including an image forming surface, image forming apparatus for defining an electrostatic latent image on the image forming surface, the latent image having image portions and background portions, development apparatus for deve-loping the electrostatic latent image in a reversal mode, using electrically charged pigmented toner particles to form a developed image overlying the image portions, whereby the developed image on the image forming surface is at a first electrical potential and the background portions on the image forming surface are at a second electrical potential, discharge apparatus for partially discharging the image forming surface so that the developed image is at a third electrical potential and the background portions are at a fourth potential and an image receiving surface at a fifth potential, for receiving the developed image from the image forming surface, wherein the difference between the fourth potential and the fifth potential is low enough such that substantially no electrical discharge occurs between the image receiving surface and the background portions.
Patent CA-2108223-C (CA)
Inventor: PINARD DEBORAH L
IPC: H04Q3/62
Filed: 1993-10-12
Granted: 1997-12-23
Abstract: The present invention relates to a method of ringing a telephone subscriber comprised of (a) defining a hunt group of telephone lines for a particular telephone line associated with the subscriber, (b) receiving a call to the telephone line from a calling party, (c) seizing and ringing a telephone line contained in the group as a result of receiving the call, (d) timing an interval of answering time, (e) in the event the telephone line is not answered within the interval, releasing and ceasing ringing the telephone line and ringing another telephone line listed in the hunt group, (f) repeating steps (d) and (e) until a ringing telephone line has been answered, all telephone lines in the hunt group have been rung for the interval, or the calling party has hung up, and (g) in the event a ringing telephone line has been answered, routing the call to the answered telephone line.
Patent CA-2120474-C (CA)
Inventor: YAMAGUCHI TAKUJI
IPC: G03D13/00
Filed: 1994-03-29
Granted: 1999-05-25
Abstract: Various arrangements are proposed for coupling films to a leader. A hole is formed in one of the films and the leader to receive a tab which is formed on the other.          These arrangements allow stable coupling of the films to the leader and easy uncoupling.  They eliminate the use of splice tape.
Patent CA-2122708-C (CA)
Inventor: WITTEK GOETZ ULRICH
IPC: A63J5/00
Filed: 1992-10-26
Granted: 2005-07-12
Abstract: Devices and methods are provided for intensifying sensorial perception of visual and/or acoustic representations, in particular in cinemas, theatres, concert and conference halls, as well as during slide or video shows, television and radio broadcasts, and the like. One such device includes a storing arrangement for individually storing and releasing or diffusing various scents or perfumes. An associated arrangement is provided for controlling the diffusion and supply of determined scents or perfumes according to determined visual and/or acoustic events. A discharge arrangement is provided to discharge scent/air mixture at a rate of less than one litre of emitted scent per second. The storage arrangement includes several different scents or perfume reservoirs that may be selectively made available by means of a scent or perfume supply selector arrangement. The device may also include a supply arrangement to supply the scents in the form of a scent-enriched scent/air mixture stream which is enriched with an ingredient of sufficiently low specific gravity so that the emerging scent/air mixture is lighter than the ambient air.
Patent CA-2124792-C (CA)
Inventor: GEDDES ANN D
IPC: A61K31/663
Filed: 1992-12-15
Granted: 2000-07-04
Abstract: Méthodes permettant d'accroître la masse osseuse chez l'homme ou les animaux souffrants d'ostéoporose, consistant à administrer pendant 30 jours une hormone parathyroïdienne et un bisphosphonate selon les modalités suivantes : a) l'hormone parathyroïdienne est administrée à raison d'une dose comprise entre envrion 4 UI/kg par jour à environ 15 UI/kg par jour, étant entendu que cette hormone parathyroïdienne doit être administrée au moins un jour sur sept pendant chaque période de traitement de 30 jours; b) un bisphosphonate est administré à raison d'une dose comprise entre environ 0,0005 mgP/kg et environ 1,0 mgP/kg par jour, étant entendu que ce bisphosphonate doit être administré au moins un jour sur sept pour chaque période de traitement de 30 jours.
Patent CA-2129153-C (CA)
Inventor: KIRBY DAVID W
IPC: H01R13/58
Filed: 1994-07-29
Granted: 1997-11-04
Abstract: A cable splice protector for protecting one or more cable splices located in an inner recess defined by the combination of a first inner shell and a second inner shell, an outer recess for containing the two inner shells including a first outer shell and second outer shell, the cable splice being compressively sealed from the element where the spliced cables pass through apertured grommets associated with the first and second inner shells.
Patent CA-2129747-C (CA)
Title: Peptide for diagnosing and immunizing against t. cruzi infection
Inventor: REED STEVEN G
IPC: A61K39/00
Filed: 1993-02-11
Granted: 2001-04-17
Abstract: There is disclosed an antigenic peptide that comprises at least 15 amino acids having the sequence Ala Glu Pro Lys X Ala Glu Pro Lys X Ala Glu Pro Lys X, wherein X is Pro or Ser. This peptide is useful in an ELISA assay to detect antibodies specific to T. cruzi infection and Chagas disease. This peptide is further useful in a vaccine composition for immunizing an individual to preveht Chagas disease upon exposure to T. cruzi.
Patent CA-2130896-C (CA)
Inventor: PORCHIA JOSE
IPC: B65D33/01
Filed: 1993-04-05
Granted: 2004-10-05
Abstract: A flexible film (11) and flexible food storage bag (10) for packaging produce such as vegetables and fruits wherein the film or bag has plurality of microholes (12) specifically designed to allow the produce to breathe in a controlled rate such that localized condensation and weight loss is minimized; which in turn reduces microbial (bacteria and mold) growth and reduces produce mushiness (softness) respectively.
Patent CA-2132100-C (CA)
Inventor: EVANS ROBERT D
IPC: C10M105/34
Filed: 1994-01-05
Granted: 1998-07-07
Abstract: Metal-metal surface contact systems in metalworking processes may be lubricated by applying thereto a composition comprising an ester, wherein the ester has a full film traction coefficient of less than about 0.05 at a pressure of about 0.5 to about 1.2 GPa, a temperature of about 50°C  and a sliding velocity of about 0.5 to about 10 msec-1.  The ester is represented by the general formula:     (see fig. I) where R1 and R2, R3 and R4 and m are set forth in the Summary of the Invention.  The composition may be mixed with a solvent to form a solution or emulsified prior to application to the metallic surface.
Patent CA-2132478-C (CA)
Inventor: BACON ROBERT D JR
IPC: E04G13/02
Filed: 1994-09-20
Granted: 1999-08-17
Abstract: A concrete column forming tube and method of making same for receiving poured concrete column therein to produce a concrete column is characterized by a smooth inside coated surface in the forming tube to eliminate spiral seam lines and other undesirable characteristics on the outside surface of the formed concrete column. The tube is formed from spirally-wound plies of paper adhered together and has a centrifugally-cast epoxy resin coating sprayed onto the inside surface of the spirally-wound tube while the tube is rotating to produce a smooth inside coated surface on the forming tube.
Patent CA-2134605-C (CA)
Inventor: SURKO WALTER E JR
IPC: E05B65/10
Filed: 1994-10-28
Granted: 1999-01-19
Abstract: This exit device has a press bar and an elongated deadbolt adapted to be mounted horizontally adjacent the free end of the door and a pivoted retractor blade inward of the door.  The blade is pivoted by the press bar and engages with its nose a projecting surface on the deadbolt and retracts the deadbolt.  The blade also has a keeper contact surface which, as the door closes, is contacted by the keeper and the blade is pivoted inward to retract the deadbolt.  The retractor blade also serves as an anti-friction bearing having a peripheral portion which rolls against the deadbolt and counters against the inward force on the deadbolt opposing to the opening force on the door.
Patent CA-2137167-C (CA)
Inventor: MITCHELL CURTIS A
IPC: G06Q10/02
Filed: 1994-12-02
Granted: 1999-09-21
Abstract: Une méthode et une architecture de gestion de données qui permettent aux utilisateurs d'intégrer les communications du système central de réservation dans les fonctions de comptabilisation et de création de rapports. Plus particulièrement, la présente invention comprend une fonction de programmation en bloc qui exécute automatiquement les tâches en bloc prédéterminées et distribue la charge exécutable efficacement entre les ressources de traitement disponibles. L'invention fournit des améliorations significatives dans les environnements qui requièrent l'accès aux systèmes de stockage de masse de données tels que les référentiels de renseignements centraux utilisés dans le secteur du voyage.
Patent CA-2139497-C (CA)
Inventor: BUCHANAN SCOTT J
IPC: B24D11/02
Filed: 1993-07-20
Granted: 2004-09-21
Abstract: A method of making a coated abrasive article having an electrically conductive backing is taught, wherein electrically conductive material is incorporated into a coated abrasive backing. The coated abrasive article made by this method has a reduced tendency to accumulate static electric charge in the abrasive article during abrading of a workpiece.
Patent CA-2143763-C (CA)
Inventor: KOMORIYA MORIHIRO
IPC: G11B15/18
Filed: 1994-07-11
Granted: 2002-06-25
Abstract: A tape recorder for recording and/or reproducing information signals by relative sliding contact between a rotary magnetic head provided on the rotary head unit and a magnetic tape having information signals recorded on it.        The tape recorder includes a rotary head unit having a rotary drum and a stationary drum coaxially mounted as and rotatably supporting the rotary drum. The rotary drum has a head mounted on it and is run in rotation for forcing the head into sliding contact with the tape-shaped recording medium run in one or the other direction. The tape recorder also includes a pair of supporting members rotatably supported by the rotary head unit, a pair of capstans rotatably supported by the rotary head unit, and a pair of pinch rolls arranged facing the capstans.      The supporting members are rotated responsive to the running direction of the tape-shaped recording medium for selectively moving one of the capstans towards one of the pinch rolls. The selected capstan clamps and runs the tape-shaped recording medium in cooperation with the selected pinch roll by way of changing over the running direction of the magnetic tape.
Patent CA-2148399-C (CA)
Inventor: LESTER JAMES N
IPC: H05B41/24
Filed: 1995-05-02
Granted: 2005-08-16
Abstract: A ballast includes an inverter for providing an AC voltage to a discharge lamp. As the lamp approaches end-of-life a DC voltage component develops across the lamp.      The ballast includes circuitry for monitoring the condition of each of the cathodes by measuring this DC voltage component. After a predetermined increase in this DC voltage component, the inverter is disabled in order to prevent excessive heating of the cathodes.
Patent CA-2156206-C (CA)
Title: Cellular telephone as an authenticated transaction controller
Inventor: PARTRIDGE B WARING III
IPC: G06Q20/24
Filed: 1995-08-16
Granted: 1999-05-11
Abstract: An arrangement to provide credit to customers via cellular telephones. In one embodiment, a customer seeking credit for the purchase of goods and services from a merchant activates his or her cellular telephone, authenticates the cellular telephone with his cellular service provider's base station, and proceeds to establish a connection to obtain credit. Credit is obtained by sending unique sequence to the cellular service provider that is different from the normal sequence of numbers that correspond to a telephone number of the called party. That sequence may include a merchant ID code and the amount of credit desired.