baber/WOPTO huggingface dataset:
Patent CA-2073110-C (CA)
Title: Exerciser by which user practices pedalling exercise in lying-down position on vertically adjustable seat
Inventor: MATSUMOTO MASAAKI
IPC: A63B23/04
Filed: 1992-07-03
Granted: 1995-12-26
Abstract: An exerciser according to the present invention includes a load portion in which a load device for applying a load to turn of a pedal is incorporated, a seat frame to which a seat for a user is fixed and having one end connected to the load portion, an end frame fixed to the other end of the seat frame and having a cylindrical shape, a seat post formed to be slidable into the end frame and having one end located on a floor, and a fixing device for fixing the end frame at a desired slide position of the seat post.
Patent CA-2079575-C (CA)
Inventor: HOOYKAAS CAREL WILLEM JAN
IPC: A62D101/20
Filed: 1992-09-30
Granted: 2005-06-14
Abstract: A toxic waste fixant for detoxification of a contaminated material includes a mixture of ferric sulfate, manganese sulfate, organophilic clays, an oxidizer and aluminium sulfate. The respective amounts are preferably about 15-19% b.w. of ferric sulfate, about 15-19% b.w. of manganese sulfate, about 37-46% b.w. of organophilic clay, about 16-19% b.w. of an oxidizer and about 0-12,5% b.w. of alumimium sulfate.      All or part of the ingredients in said fixant may be added as a pretreatment into contaminated materials such as soils, sediments, or sludges. This pretreatment can range from 0 to 100% b.w. to said material. The fixant is blended with various amounts of Portland cement, and/or blast furnace slag, or lime, or gypsum, or coal fly ash, or cement kiln dust as a means to derive a chemical fixation treatment for contaminated soils, sediments, and sludges to prevent the leaching of organic and inorganic compounds and elements.
Patent CA-2081642-C (CA)
Title: X-ray exposure apparatus and semiconductor-device manufacturing method
Inventor: EBINUMA RYUICHI
IPC: G03F7/20
Filed: 1992-10-28
Granted: 1998-08-25
Abstract: X-rays enter an airtight chamber through a beam duct, pass through a transmission window, and expose a wafer and mask disposed outside the airtight chamber. The wafer and mask are held by a wafer chuck and a mask holder, respectively.          The mask holder includes a pressure sensor, which detects variations in the atmospheric pressure. An output from the pressure sensor is converted into a change in the intensity of the x-rays by an arithmetic unit, and is transmitted to a control unit, which controls a driving unit of a shutter. By thus controlling the moving speed of the shutter in accordance with variations in the atmospheric pressure, it is possible to prevent variations in the amount of x-ray exposure of the wafer.
Patent CA-2082820-C (CA)
Title: Derivatives of 6-aminooctahydroindolizinetriol
Inventor: LIU PAUL S
IPC: C07D471/04
Filed: 1991-05-08
Granted: 2002-01-22
Abstract: Amide and ester derivatives of 5-amino-octahydro-1,7,8-indolizinetriol are described herein. The compounds have the general formula: (see formula I) wherein R is C1-10 alkanoyl; and R' and R" and R''' are independently hydrogen, C1-10 alkanoyl or benzoyl. The compounds are prepared from castanospermine by replacing the appropriate hydroxy function with an amino function while protecting the other hydroxy groups in the meantime.      The compounds are useful as hexosaminidase inhibitors.
Patent CA-2084213-C (CA)
Title: Acoustic displacement flow meter
Inventor: WOODWARD W STEPHEN
IPC: G01F15/075
Filed: 1992-12-01
Granted: 2002-09-10
Abstract: An acoustic displacement flowmeter uses a high-compliance acoustic-type displacement transducer to measure fluid flow accumulated by temporarily restricting the flow of a fluid along a path. The displacement transducer signal, representative of fluid flow rate, is integrated after an initial settling period elapses, and the integrated signal is periodically sampled.  The number of samples taken during a measurement cycle depends upon the slope of the integrated signal and the maximum sample period permitted. The samples are summed and the actual flow rate is computed by a microcomputer.
Patent CA-2084914-C (CA)
Title: Guiding and transfer device for at least two welding steel sheet blanks
Inventor: PERU GILLES
IPC: B65H29/12
Filed: 1992-12-09
Granted: 1997-03-18
Abstract: The subject of the present invention is a device for guiding and transporting at least two sheet-metal panels to be welded edge to edge. 
<??>The device comprises, on the one hand, for each sheet-metal panel, means (14a, 15a) for supporting the sheet-metal panel in a horizontal reference plane, these means being horizontally movable in the direction of a laser beam, and means (14c, 15c) for vertically pressing the sheet-metal panel against the horizontally-movable support means, in synchronism with the said support means for the movement, by adhesion of the sheet-metal panels and, on the other hand, means for keeping in reference, in a vertical plane, the edge to be welded of one of the sheet-metal panels along the axis of the laser beam, and means for applying lateral pressure on the edges to be welded of the two sheet-metal panels. 
<??>The invention applies to installations for the laser-beam welding of sheet-metal panels of various geometrical shapes and/or of various thicknesses, for example for the automobile industry. 
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Patent CA-2086584-C (CA)
Title: Inner filter for aquarium
Inventor: DIECKMANN KLAUS E
IPC: A01K63/04
Filed: 1992-12-31
Granted: 1996-10-08
Abstract: An inner filter for an aquarium has means forming a pump chamber, a filter chamber, a suction opening, and outlet opening, a suction passage which communicates with the pump chamber and the filter chamber and in which water is aspirated through  the  suction  opening,  a  pressure  chamber  which communicates with the pump chamber and the outlet opening, a pump wheel, an electric motor having a rotor which drives the pump wheel in the pump chamber and also having a stator and a housing  having  three  releasable  and  again  assembleable segments,  the  segments  including  a  first  segment  which accommodates the stator with an electric conductor, a second segment which accommodates the rotor with a bearing axles and bearings  and also  accommodates  the  pump wheel,  the pump chamber,  the  filter chamber,  the suction passage and the pressure passage, and a third segment which is placeable on the second segment and formed as a cover and has the outlet opening connectable with the pressure passage, the suction opening which is connectable with the filter chamber being provided in the region of one of the third segment and the first segment.
Patent CA-2094003-C (CA)
Title: Cable strain relief for a shielded electrical connector
Inventor: REED CARL G
IPC: H01R9/03
Filed: 1993-04-14
Granted: 1998-03-10
Abstract: An electrical Connector (4) terminated to signal wires (SW) of a shielded electrical cable (C) having a drain wire (DW), has an insulating housing (8) containing electrical terminals having contacts (40) electrically connected to the signal wires of the shielded electrical cable (C).  A metal shield (14) covering the lower part of the housing (8) has a grounding clip (48) connected to the rear wall (28) of the shield (14) by means of a strap (62).  The grounding clip receives an end portion of the cable (C) from which the signal wires (SW) extend to the contacts (40) of the connector (4).  The drain wire (DW) is wound in a circuitous path about tabs (58) of the grounding clip (48).  The grounding clip can be bent about the strap (62) to lie in a channel (36) between two rows of the contacts (40) of the connector (4), after the grounding clip has been wound about with insulative tape (T).  The drain wire (DW) accordingly provides strain relief, if the cable (C) is inadvertently pulled, for the electrical connections between the contacts (40) and the signal wires (SW).
Patent CA-2094168-C (CA)
Title: Mufflers
Inventor: RAMJIT CARL N
IPC: F01N1/12
Filed: 1993-04-16
Granted: 2003-05-06
Abstract: A sound attentuating device, typically applied to the exhaust of internal combusion engines, and consisting of a helicoidal element fitted snugly within a tube. The helicoid is formed by a sequence of flat triangular sufaces generated by a forward fold transverse to a longitudinal axis followed by a reverse fold oblique to the longitudinal axis and having the procedure repeated. It is analogous to an accordion-like strip which rotates because an oblique fold alternates with a transverse fold. The muffler functions by having the helicoid reflect sound waves generated within the machine to which it is attached while permitting the escape of gases through the tube in a spiral manner.
Patent CA-2096596-C (CA)
Inventor: MARINO FRANK
IPC: F24F6/10
Filed: 1993-05-19
Granted: 2001-12-04
Abstract: A humidifier including a base defining a reservoir; a humidifier unit mounted in an upright orientation on the base over the reservoir and movable to provide access thereto, the humidifier unit retaining an electrically energized humidification means for inducing dispersion of liquid and defining a discharge opening for discharging liquid dispersed by the humidification means; a circuit coupled to the humidification means and including an on-off switch for inducing energization thereof, and an orientation responsive switch for de-energizing the humidification means in response to movement of the humidifier unit to an orientation other than the upright orientation. Unsafe operation is prevented by the orientation responsive switch.
Patent CA-2110552-C (CA)
Title: Copy protection of software for use in a private branch exchange switch
Inventor: GLASSMACHER JOSEPH FRANCIS
IPC: G06F21/00
Filed: 1993-12-02
Granted: 1997-08-05
Abstract: An inexpensive software copy protection arrangement prevents the unauthorized use of customized software for a private branch exchange switch. The arrangement employs a process which recognizes the signature of typical unauthorized activities and freezes the administration capability of the private branch exchange switch when such signature is detected. By freezing the administrative capabilities, the addition, removal or change of an administrative port, extension or routing pattern on the private branch exchange switch is prevented.
Patent CA-2110945-C (CA)
Inventor: NAKAMURA KAZUYOSHI
IPC: B65H29/54
Filed: 1993-12-08
Granted: 1999-01-19
Abstract: Stripping fingers for use in a copying machine, molded of a liquid crystal polyester resin composition containing a liquid crystal polyester having a flow temperature of 340°C or higher and titanium oxide whiskers.   The stripping fingers have excellent heat deflection resistance, heat aging resistance, thermal shock resistance, heat load resistance, low attack on the counter roller, good shape retainability of the finger edges, and good non-stick property against toner.  Coating with PFA at 330°C or higher on the stripping finger increases non-tackiness.
Patent CA-2113261-C (CA)
Inventor: KLETT MICHAEL W
IPC: D06M13/405
Filed: 1992-07-09
Granted: 2000-03-14
Abstract: A simplified aqueous sizing composition utilizing a variety of components achieves improved stability, wettability and strength characteristics. The composition utilizes one or more aqueous, soluble, dispersible or emulsifiable bisphenol A type polyester film forming polymers with an epoxy containing film forming copolymer compatible with and soluble in the matrix polymer. One or more organo-silane coupling agents are also utilized. The sizing composition preferably includes a single nonionic surfactant in conjunction with a cationic amidated polyamine lubricant. One or more anti-static agents, generally cationic organic quaternary ammonium salts having one or more alkoxy moieties, are utilized in an effective anti-static amount. An anti-foaming agent may also be utilized for the prevention or suppression of foam during the mixing process. The improved stability and wettability characteristics of the aqueous sizing composition are preferably achieve through the use of a single epoxidized surfactant. Compositions formed from this surfactant are effective at one-half the surfactant level and retain their static emulsion stability for 48 hours or more. This is accompanied by a 50 percent improvement in dry sliver abrasion with no apparent negative effects on the mechanical properties of the resultant glass fiber. Figure shows the particle size of four sizing compositions each with a different epoxy emulsion having a given amount of the surfactant.
Patent CA-2119344-C (CA)
Inventor: NAGAI MASAYUKI
IPC: F28F9/013
Filed: 1994-03-17
Granted: 1998-05-05
Abstract: A heat exchanger is disclosed, which comprises: a plurality of tubes each having a U-shaped portion and arranged in a plurality of parallel bending planes, each bending plane containing a plurality of tubes of the same nominal outer diameter and of differing bending radius, the variation of the outer diameter of the tubes in at least one of the bending planes measured in a direction perpendicular to the bending planes being at most 0.1 mm; and an antivibration bar disposed between two of the bending planes.
Patent CA-2120039-C (CA)
Inventor: KOSKAN LARRY P
IPC: C08G69/10
Filed: 1991-08-15
Granted: 2001-11-20
Abstract: A process for the manufacture of polyamino acids, particularly polyaspartic acid. A solid, particulate, amino acid is fluid-izod by agitation in a nitrogen atmosphere and heated to a temperature of at least 180 °C and maintained at that temperature for a sufficient amount of time to polymerize the amino acid and to drive off water from the heated bed. A degree of agitation suffi-cient to substantially fluidize the particles is provided and a particle size of no more than 150 microns is maintained throughout the process. The resultant anhydropolyamino acid is then hydrolyzed to a polyamino acid.
Patent CA-2125705-C (CA)
Title: Apparatus for generating and sending a serial data packet for controlling a network of single point i/o devices
Inventor: BUDA PAUL ROBERT
IPC: H04Q9/14
Filed: 1992-12-17
Granted: 1998-10-13
Abstract: A communication system between a microprocessor based device (10) and a network of a plurality of remote input/output repeater modules (l2a-12d) that control various input and output devices (22a-22d) and (21a-24d) uses a synchronous serial communications protocol. he microprocessor based device (10) contains a transmitter module for generating a data packet that is sent to the remote input/output repeater modules (12a-12d). The transmitter module controls the clock rate of the network and encodes the data packet with an output data byte for each of the repeater modules (12a-12d). The output byte determines the state of the output devices (24a-24d) that may be connected to the remote input/output repeater module coupled to the network.
Patent CA-2129260-C (CA)
Title: Mixing-cutting paddle
Inventor: YOWELL DONALD H
IPC: B01F7/00
Filed: 1994-08-01
Granted: 2005-01-25
Abstract: A paddle is used for mixing and cutting. A hub is at one end of the paddle for connecting the paddle to a planetary mixing machine. The paddle includes a plurality of interconnected arms in a fan-like array which define a plurality of slots between adjacent arms. The arms include a plurality of apertures formed therethrough. Outermost ones of the arms are positioned at opposite sides of the paddle. A plurality of wire members are secured at their opposite ends to the outermost arms. The wire members extend through the apertures formed in the arms and across the slots defined between the arms. The combination of the arms, the wire members extending through the apertures formed in the arms and across the slots defined between the arms, forms a plurality of multidirectional mixing and cutting components of the paddle.
Patent CA-2135389-C (CA)
Inventor: JEFFERSON DONALD E
IPC: F23N1/00
Filed: 1993-05-10
Granted: 1999-01-05
Abstract: A thermostat (7) is described for controlling a furnace (2) for a hot air, hot water, or steam heating system which delivers heat to a headed space (5) via a delivery system (4). The thermostat (7) causes the system to conserve energy by limiting the "burn" or on-time cycle to a system-specific interval during which the heat exchanger of the furnace (2) operates in its linear region. At the end of this interval (designated  a "MAX-ON" interval), the burn cycle is terminated, but delivery of heat to the heated space (5) continues for a secondary-delivery interval during which the furnace's blower (3) (or other delivery means) continues operation. The secondary-delivery interval ends when the residual heat has been extracted from the furnace (2) and delivery system (4). The system then remains off until the next burn cycle begins. The duration of the off-time interval is such that heat input to the headed space (5) and heat outflow to the ambient (6) from the heated space (5) are kept in equilibrium.
Patent CA-2135829-C (CA)
Inventor: OSTROWICKI ANDREAS B
IPC: C07C11/02
Filed: 1994-11-15
Granted: 2005-09-13
Abstract: A process is provided for the removal of tertiary butyl chloride from a hydrocarbon stream, wherein the hydrocarbon stream is contacted at a temperature of from about 130° to about 170°C with a particulate calcium oxide containing from 1 to 10 mole % of a Group 3 or 4 compound and the hydrocarbon stream is recovered containing a reduced level of tertiary butyl chloride.
Patent CA-2140470-C (CA)
Title: Combined mapping, pacing, and defibrillating catheter
Inventor: SMITH JOSEPH M
IPC: A61N1/05
Filed: 1995-01-18
Granted: 1998-04-28
Abstract: A catheter insertable into a body provides for both sensing  electrical  activity  of  the  heart  at  localized locations of the heart and defibrillating the heart when defibrillation is required.  The catheter includes a plurality of  connectors  at  the  proximal  end  and  a  plurality  of electrodes disposed along the catheter at the distal end.  The plurality  of  electrodes  includes  a  first  plurality  of electrodes and a second plurality of electrodes.  The first plurality of electrodes are coupled together and to a given one of the plurality of connectors.   Each of the second plurality of electrodes is coupled to a respective different one of the plurality of connectors.  The first plurality of electrodes provide for defibrillating the heart and the second plurality  of  electrodes  provide  for  sensing  electrical activity of the heart at localized locations of the heart.
Patent CA-2142175-C (CA)
Inventor: MILLER CRAIG A
IPC: H01R13/24
Filed: 1995-02-09
Granted: 2000-01-25
Abstract: Electrical connections are provided between coupled railway cars by a connector which mates with the industry standard brake line air hose connector.  Electrical contacts may be imbedded in the mating surfaces of two joined connectors, or on modules attached to the standard connector.  The valve which admits air to the air hose connector after it is joined to another connector may also actuate a switch which completes electrical circuits when the air valve is opened. In cases where end to end reversal of a railway car would cause interchange of circuits, a compensating switch is provided.
Patent CA-2143232-C (CA)
Title: A fuel nozzle for a turbine having dual capability for diffusion and premix combustion and methods of operation
Inventor: BEAUDOIN RONALD J
IPC: F23R3/26
Filed: 1995-02-23
Granted: 2008-12-09
Abstract: The fuel nozzle includes an annular chamber defined between a housing and a central tube. At the downstream end of the-tube, inner and outer swirlers are provided in communication with the upstream chamber and a combustion zone downstream of the swirlers. When fuel gas is supplied the inner swirler, a portion of the air flowing through the chamber mixes in the inner swirler with the supplied fuel for holding a diffusion flame in a downstream diffusion mixing cup. The balance of the air flowing through the chamber through the outer swirler is segregated from the air supplied the inner swirler by a circumferentially extending splitter vane. At an upstream portion of the chamber a plurality of spokes pass into the chamber for supplying fuel gas to the chamber when the nozzle operates in a premix combustion mode. When operating in a premix combustion mode, fuel gas is cut off from the inner swirler and supplied to the spokes. The fuel and air are mixed in the chamber and pass through both the inner and outer swirlers, forming a premix flame front within a downstream premix cup in the combustion zone.
Patent CA-2145283-C (CA)
Inventor: HOLBROOK PHIL
IPC: E21B47/06
Filed: 1993-10-04
Granted: 2005-04-26
Abstract: An improved technique more accurately determines pore pressure of sedimentary rock penetrated by a borehole from the earth's surface. Formation overburden is directly measured at one or more locations in the borehole, and a log of formation overburden is generated using the measured overburden pressures and conventional geophysical data. A linear relationship has been determined between the logarithm of effective stress for a specific mineral and the logarithm of solidity, which allows the maximum effective stress and the compaction exponent for that mineral to be determined. This linear relationship enables the effective stress and compaction exponent for rock comprising a combination of minerals to be precisely determined at multiple borehole intervals. The effective stress and overburden calculated according to the techniques of the present invention are particularly useful to geologist and well planners in the oil and gas industry.
Patent CA-2152944-C (CA)
Inventor: HENRY RAY
IPC: H04W48/20
Filed: 1994-11-01
Granted: 1999-12-07
Abstract: A method and system for locating control channels (70), particularly digital control channels are described. By grouping the channels which are candidates for carrying supervisory messages in blocks indicative of their relative likehood for being used as control channels, a mobile station can begin its search for a control channel with channels which are most likely to actually be control channels. Placing location information on other channels allows the mobile station (120) to be redirected to a control channel when it reads one of these other channels. Similarly, by placing information describing the location of a control channel in a message associated with handoff, a mobile station avoids the necessity of having to relocate a new control channel associated with the base station to which the mobile has been handed off.
Patent CA-2156328-C (CA)
Inventor: TOUCHTON SCOTT F
IPC: H05C1/00
Filed: 1995-08-17
Granted: 2000-06-06
Abstract: A portable programming apparatus is employed for a programmable animal control device carried by an animal having a receiver for receiving a radio signal, a transducer for applying a stimulus to the animal in response to the radio signal, and a programmable controller responsive to selected control parameters for controlling operation of the animal control device.  The programming apparatus includes a connector probe for insertion into a battery compartment of the animal control device.  The connector probe includes probe terminals for mating with the battery terminals of the animal control device.  The programming apparatus includes a controller for establishing communication with the animal control device via the probe terminals and for transferring the control parameter between the programming apparatus and the animal control device. The programming apparatus includes a parameter selection actuator for selecting a new value of the control parameter and a selection entry actuator for causing the controller to transmit the new value of the control parameter to the animal control device via the probe terminals thereby enabling the animal control device to operate under the new value of the control parameter such as a new frequency of operation.