baber/WOPTO huggingface dataset:
Patent CA-2089579-C (CA)
Inventor: MACDONALD JOHN L
IPC: G07C9/00
Filed: 1991-08-14
Granted: 2000-10-03
Abstract: A document security system is described for encoding documents such as credit cards, chargecards and the like with a unique signal representative of the user which cannot be read by the unaided eye and can only be read using a document reading means such as a card swipe machine. In a preferred arrangement the signature (20) of a user is digitised by a digital scanner (22) and the digital data is compressed and magnetically encoded onto the magnetic stripe (14) of the credit card (12). The user's portrait (18) can also be digitised and printed on an anti-tamper panel (30) on the card. In use, the user presents the card (12) in a bank or store and the portrait is initially compared with the user and assuming there is a likeness, the card (12) is swiped through a card-swipe reader (38) and the encoded signature is read and displayed on an LCD-type display (40). The vendor or teller at the point of use can then compare the signature read from the card with the user's actual signature to verify the authenticity of the user.       Embodiments of the invention and a novel digital compression technique are described.
Patent CA-2090648-C (CA)
Inventor: LOBB JOLAN FREDDA
IPC: B60C3/04
Filed: 1993-03-01
Granted: 2003-10-14
Abstract: A molded shape for an earthmover tire 20 is disclosed. The uninflated, unmounted outer shape tire's sidewalls 22 are composed entirely of curves connected at tangency points between the tread 24 and the bead flange area 26. The shape transitions smoothly from one curve to the next without any flat surfaces. The sidewalk 22 have axially outer convex surfaces extending from the tread 24 to the bead flange area 26. The tread 24 has a radially outer ground contacting surface 28. A curved line tangent to the ground contacting surface 28 forms an arc having a single radius of curvature (TR). In a preferred embodiment of the invention, the outer shape consists of four curves with one curve describing the tread arc width (TAW), one curve R us describing the upper sidewall, one curve R ls describing the lower sidewall, and one curve describing the flange area radius R fa.
Patent CA-2094992-C (CA)
Title: Sliding type magnetic head for magneto-optical recording
Inventor: NANJYO SHINICHI
IPC: G11B11/105
Filed: 1993-04-27
Granted: 2002-10-08
Abstract: A magnetic head for magneto-optical recording comprises a head body (32) having a sliding portion (37) which causes a head element to come in sliding contact with a magneto-optical disc (1). The sliding portion (37) is disposed on an inner periphery of the magneto-optical disc (1) relative to a central magnetic pole core (14a) of the head element so that, even when the central magnetic pole core 14a is located at an outer peripheral paint (A) of the magneto-optical disc (1), the sliding portion (37) can be prevented from hitting a bump portion formed on the outer periphery of the magneto-optical disc (1). Thus, in the sliding type magnetic head for magneto-optical recording, a utilization factor of a reliable recording and reproducing region of the magneto-optical disc (1) can be improved.
Patent CA-2095188-C (CA)
Title: Process for the production of polyamine mixtures of the poly-amino-polyaryl-polymethylene series
Inventor: KONIG CHRISTIAN
IPC: B01J27/10
Filed: 1993-04-29
Granted: 2003-04-15
Abstract: A process for production of polyamines of the diphenylmethane series through a condensation reaction of aniline with formaldehyde in the presence of an acid catalyst, neutralization of the acid catalyst after reaction completion, and distillation of the resultant polyamine mixture is described. The key feature of the process is the abrupt increase in reaction temperature after the condensation reaction or after the first rearrangement step.
Patent CA-2097234-C (CA)
Inventor: RANKI MARKUS KALLE TAPIO
IPC: F27B1/10
Filed: 1993-05-28
Granted: 1999-01-12
Abstract: The present  invention relates to a method and apparatus for feeding a reaction gas, advantageously oxygen or air, or a mixture thereof, into a smelting furnace so that the cross-sectional area through which the reaction gas is fed can be adjusted.  Thus the velocity of the gas discharged into the smelting furnace can be maintained sufficiently high even when the quantity and quality of the gas varies.
Patent CA-2098894-C (CA)
Inventor: WENDT DAVID C
IPC: G01L5/28
Filed: 1993-06-21
Granted: 1995-12-12
Abstract: In an AC inverter drive connected to an AC induction motor on a material handling machine, the motor (which has a load holding brake and a pulse-emitting shaft encoder) moves a load in hoisting or lowering directions. A method for checking brake load-holding torque including the steps of decelerating the motor toward zero speed, setting the brake, applying "float" load-holding electrical power to the motor, changing the current flowing to the motor and checking for motor rotation by pulse-counting.  Motor power is blocked if the number of counted pulses is less than a predetermined number or is increased if the number of counted pulses is greater than a predetermined number, the latter indicating that the brake is incapable of holding the load.
Patent CA-2099390-C (CA)
Title: Packaged balloon and greeting card
Inventor: REITER ERNST R
IPC: B42D15/04
Filed: 1993-06-30
Granted: 1998-05-26
Abstract: A packaged balloon and greeting card are disclosed comprising a balloon having an uninflated body, a filler neck extending from said body, and a first image displayed on said body; a greeting card having a face displaying a second image matching the first image; a tether line having a first end attached to the filler neck and a second end attached to the greeting card; and a packaging envelope receiving the uninflated balloon body, the greeting card, and at least a portion of the tether line.  A third image, matching the first and second image, can be displayed on the envelope.  The packaging envelope can also include an opening through which the balloon filler neck extends outside the envelope for communication to a source of inflating gas to permit in-situ inflation of the balloon body in the envelope.  The envelope can also be constructed so as to be burst by inflation of the uninflated balloon body while it resides in the envelope to facilitate unpackaging of the balloon for use.
Patent CA-2109589-C (CA)
Title: Improved marine anchor
Inventor: BRUCE PETER
IPC: B63B21/32
Filed: 1992-05-21
Granted: 2000-11-14
Abstract: A marine anchor (1) has an anhedral fluke (2) with a shank (3) attached thereto including an anchor line attachment point (10). A rear plate assembly (4) behind the fluke (2) is inclined at an obtuse angle (.alpha.) to the fluke (2) and serves to provide a turning moment about the attachment point (10) countering turning moments produced by friction effect on the fluke and the shank and by edge resistance during anchor burial to give improved anchor holding power while soil escapes passage (5) between the rear assembly (4) and the fluke (2) allows escape of sand and soft mud passing over the fluke. Peripheral edges (4A) of the rear assembly (4) are shaped to cause rolling of the anchor to a burial position. An upturned toe portion (9) at the front of the fluke encourages effective anchor operation in clay soils while also facilitating rock gripping by the anchor.
Patent CA-2109815-C (CA)
Title: Antibody preparation
Inventor: BOLT SARAH L
IPC: C12P21/08
Filed: 1992-10-21
Granted: 2003-02-04
Abstract: Novel aglycosylated antibodies having a binding affinity for the CD3 antigen complex are of value for use in therapy, par-ticularly in immunosuppression.
Patent CA-2111781-C (CA)
Title: Removable bulletproof apparatus for vehicles
Inventor: MADDEN JAMES R JR
IPC: B60R21/12
Filed: 1993-12-17
Granted: 1999-01-12
Abstract: Removable  bullet-resisting  apparatus  for  a  vehicle includes a transparent panel which is secured to or disposed adjacent to a vehicle window and a flexible curtain is secured to a bracket to which the bottom portion of the transparent panel is secured. Both the transparent panel and the curtain are bullet-resisting.  Both the panel and the curtain are easily installed and easily removed from their common bracket and from the vehicle.  Depending on the particular design or structure of a vehicle in which the apparatus is installed, various top bracket structures may be used. The curtain is made of layers of cloth, which may be woven or nonwoven material.  In one embodiment, as for use in law enforcement vehicles, the curtain includes a bottom flap or portion that may be pivoted down when the door is opened to provide an officer  with  essentially  a  full  length  bullet-resisting shield.  The full length shield includes both the transparent panel and the curtain and its flap. A similar curtain and transparent panel may be secured to and behind the front seat to protect the occupants of the front seat from bullets fired from the rear of the vehicle or from rearwardly of the front door.
Patent CA-2114466-C (CA)
Inventor: CHANDRAN RAMA
IPC: C08G18/62
Filed: 1994-01-28
Granted: 1997-12-30
Abstract: This  invention  is  a  hot  melt  pressure  sensitive  adhesive  formed  by copolymerizing acrylic, or a combination of acrylic and vinyl, monomers with the functional monomer, 1-(1-isocyanato-1-methyl ethyl)-3-(1-methyl ethenyl)benzene m-TMI, to give a saturated polymer with pendant vinyl groups that are crosslinked by UV or EB radiation.
Patent CA-2115261-C (CA)
Title: Multiple optical fiber splice
Inventor: CARPENTER JAMES B
IPC: G02B6/36
Filed: 1992-07-28
Granted: 2004-11-30
Abstract: A device for splicing multiple optical fibers includes a novel splice element (18) having two plates (74, 76) formed from a sheet of ductile material, there being a fold line in the sheet forming a hinge, the two plates being folded toward one another to define opposing surfaces.     One of the opposing surfaces (76) has several fiber receiving grooves (82) therein, parallel with the fold line, and the other surface has ramps (88) at each end to support the fibers proximate the transition from their buffered portions to their stripped portions. The ramps are adjacent porches (84) which are integrally formed with one of the plates, the porches having additional grooves (86) for aligning the fibers with the fiber receiving grooves. Stop pads (90) are provided on both opposing surfaces, at the corners of the plates, to insure a clearance space at the ends of the plates which provides for more gradual clamping of the fibers, reducing insertion loss. Splice element (18) may be formed from a sheet of deformable material, preferably a ductile metal such as aluminum, although polymeric materials may also be used. Material selection is described further below. Certain features are embossed, coined, stamped, molded or milled into element (18).
Patent CA-2116203-C (CA)
Title: A pull-out guide for drawers
Inventor: ROECK ERICH
IPC: A47B88/14
Filed: 1994-02-22
Granted: 2001-01-30
Abstract: A pull-out guide for drawers, having a support rail on the carcass side and a pull-out rail on the loading side on each side of the drawer, rollers which transmit the load being mounted on the rails. The rollers of the support rails and of the pull-out rails are offset perpendicular to the direction of pulling out the pull-out rails such that the pull-out rails are guided on two tracks. The pull-out rails each have at least one horizontal tab which projects below the running web of the support rail and forms a lift protection means for the drawer.
Patent CA-2116412-C (CA)
Inventor: KOU YUKARI
IPC: H04W84/12
Filed: 1994-02-24
Granted: 1999-07-13
Abstract: In a satellite communications system comprising a central station and remote stations, each remote station sends a packet containing user data on a randomly determined slot of a forward satellite channel. If the packet is received by the central station, it sends traffic data and an acknowledgment signal. If the absence of acknowledgment signal is detected by the remote station, it generates a random number in a range determined by the traffic data and increments a count value indicating a number of instances where the acknowledgment signal is not returned. The packet containing the count value is retransmitted on a time slot determined by the random number. If an acknowledgment signal is received, the count value is reset to zero. The central station, on receiving a packet, generates an acknowledgment signal, and derives a sum of the total of packets received during a predetermined interval and the total of count values contained in such packets. The traffic data is derived from the sum and transmitted with the acknowledgment signal and host data on a backward satellite channel.
Patent CA-2127748-C (CA)
Inventor: IGAUE TAKAMITSU
IPC: A61F13/511
Filed: 1994-07-11
Granted: 1998-12-22
Abstract: An absorbent member comprises an absorbent core, a liquid  permeable  covering  sheet  and  a  reticulated  sheet interposed between the absorbent core and the covering sheet 11,  wherein the reticulated sheet has a relatively higher open ratio over at least an inwardly facing surface of the absorbent core than over any of opposite side regions and opposite end regions thereof.
Patent CA-2127771-C (CA)
Inventor: STEEBY JON ALLEN
IPC: B60W10/10
Filed: 1994-07-11
Granted: 1999-11-02
Abstract: A system and method are disclosed for controlling a shift even in a transmission (14) wherein a shift actuator (30,48) develops a force to effect the engagement of a clutch collar and a gear. The method comprises detecting when a non-fully engaged condition of the clutch collar and the gear occurs, indicating either a tooth butt or torque lock condition, and then pulsing the shift actuator (30,48), when the non-fully engaged condition is detected, between a relatively low force and a relatively high force to disturb the clutch collar and the gear out of the non-fully engaged condition, The detecting step comprises examining either the axial position of the clutch collar or the axial position of a shift rail operatively connected to the clutch collar with a rail position sensor (43). Preferably, a signal having a modulated pulse width and a frequency of between about 5 and 20 Hertz is sent to the shift actuator. The system which embodies this method is disclosed in the forms of an automated mechanical transmission having sliding clutch collars (122,124,126) and a transmission system having a standard friction master clutch interposed between the engine and the transmission.
Patent CA-2129660-C (CA)
Title: Tissue plasminogen activator glycosylation variants with improved therapeutic properties
Inventor: BENNETT WILLIAM F
IPC: C12N15/58
Filed: 1993-05-28
Granted: 2005-06-28
Abstract: The invention concerns tissue plasminogen activator (t-PA) variants which are glycosylated at any of positions 103-105, and are devoid of functional carbohydrate structure at position 117 of wild-type human t-PA amino acid sequence. The variants have extended circulatory half-life and substantially retained fibrin binding, or improved in vivo fibrinolytic potency, as compared to wild-type human t-PA.
Patent CA-2139619-C (CA)
Title: Steering wheel drive assembly
Inventor: SMITH JAMES E
IPC: B60K17/14
Filed: 1995-01-05
Granted: 1999-04-27
Abstract: A steering wheel drive assembly for steerable wheels of vehicles.  A hydraulic motor is provided for driving the wheel and includes a fluid distribution assembly located between the bearing assembly and piston drive assembly.  Upper and lower bores are provided in the distribution assembly cover and extension arms attached to the vehicle chassis extend over the bores and are provided with pivot pins detachably attached to the extension arms and extending into the distribution cover bores.          The distribution cover bores are coaxial and thereby allow the fluid motor to pivot about an axis of rotation.  The motor axis of rotation is preferably colinear with the vertical center line of the steerable wheel.  Sleeve bearings are provided within the distribution cover bores and thrust bearings are provided inbetween the extension arms and the distribution cover.
Patent CA-2140403-C (CA)
Title: Reducing leakage current in a thin-film transistor with charge carrier densities that vary in two dimensions
Inventor: KING TSU-JAE
IPC: H01L21/265
Filed: 1995-01-17
Granted: 1999-03-16
Abstract: In the channel layer of a thin film transistor (TFT), a channel and its drain meet at a transition within a transition region. The channel extends in a first, or horizontal, dimension away from the drain and extends in a second, or vertical, dimension from a side away from the gate to a side toward the gate. The charge carrier densities in the transition region vary in the second dimension in a way that reduces leakage current, because the position of the maximum electric field is moved away from the gate and its magnitude is reduced. Variation of densities in the second dimension can be produced by high angle implantation of a dopant and a counterdopant, providing a transition region between the drain and the channel underneath the gate. Variation of densities in the second dimension can also be produced with non-angled implantation by a process in which a sidewall spacer offsets the drain, providing a transition region that is between the drain and the channel and that can be doped independently of the drain. In a symmetric TFT in which either channel lead can function as a drain, charge carrier densities can vary in the second dimension at the transitions between each channel lead and the channel.
Patent CA-2141040-C (CA)
Title: Glycogen polysaccharides
Inventor: NICOLETTI ROSARIO
IPC: C08B37/00
Filed: 1993-07-28
Granted: 2001-01-23
Abstract: Glycogen polysaccharides substantially free of nitrogenous compounds and reducing sugars.
Patent CA-2145291-C (CA)
Inventor: KEEMER CRAIG
IPC: C09C1/62
Filed: 1994-08-11
Granted: 1998-08-18
Abstract: Metal pigment particles which are treated with a heteropolyanion compound, a phosphosilicate compound or a combination of a heteropolyanion compound and a phosphosilicate compound show increased stability against attack by water. The particles are especially useful in aqueous coating compositions.
Patent CA-2149109-C (CA)
Title: Pipe blocking technique
Inventor: SALES BRIAN THOMAS
IPC: F16L55/134
Filed: 1995-05-10
Granted: 2001-09-04
Abstract: A method for blocking the bore of a pipe comprising moving an inflatable bag along the bore of the pipe from an access point in the pipe to a point where the bore is to be blocked, inflating the bag until it engages the internal wall of the pipe or main, and causing the bag to maintain its inflated condition.
Patent CA-2154018-C (CA)
Inventor: GLANCE BERNARD
IPC: H04B10/43
Filed: 1995-07-17
Granted: 1999-11-09
Abstract: A digitally-tuned integrated laser with multi-frequency operation for generating optical signals of various frequencies. The laser includes a wafer having a frequency router defined therein and a first cleaved face, a second cleaved face and a third face. An active optical amplifier is formed at the first cleaved face and is connected to the frequency router by a waveguide. A plurality of individually selectable optical amplifier pairs are formed at the second cleaved face and are connected to the frequency router by pairs of waveguides. The waveguides of each pair are coupled one to the other by an optical coupler that provides a portion of a generated optical signal to a modulator contained in one of the waveguides of each waveguide pair.
Patent CA-2155840-C (CA)
Inventor: SCHONAFINGER KARL
IPC: C07D271/08
Filed: 1994-02-18
Granted: 2005-05-24
Abstract: The present invention relates to hydroxymethyl furazane carboxylic acid derivatives of the general formula (I)   in which one of the residues R1 and R2 is hydroxymethyl and the other is (a) in which X is NR3R9, OH or OR7 and R3, R4 and R7 are defined as in claim l, process for producing them and their use. The compounds are useful in the treatment of angina pectoris or erectile dysfunctions.
Patent CA-2156123-C (CA)
Inventor: KEMP WILLIAM HARRY
IPC: H02P27/16
Filed: 1995-08-15
Granted: 1999-04-06
Abstract: A power supply for a variable speed AC motor, comprising waveform generation means for generating a periodic pulsed waveform according to a desired motor speed; an adjustable source of DC potential; and inverter means, coupled to said waveform generation means and to said source of DC potential, for providing an AC pulse train to said AC motor, said pulse train having waveform characteristics according to said pulsed waveform to obtain said desired speed, and a voltage amplitude according to said DC potential wherein motor currents can be controlled at any said desired motor speed by varying said DC potential.
Patent CA-2156363-C (CA)
Title: Air bag inflator with pressure sensor
Inventor: HEADLEY PAUL S
IPC: B60R21/26
Filed: 1995-08-17
Granted: 1998-10-27
Abstract: An air bag inflator (20) includes gas stored at or above a predetermined pressure in a chamber (24) in a container (22).  An initiator (10) connected with the container (22) is exposed to the pressure of the gas stored in the chamber (24).  A closure can (120) of the initiator (10) includes an electrically conductive sensor portion (140) which is spaced apart from an electrically conductive contact can (200) when the pressure in the chamber (24) is at or above the predetermined pressure.  If the pressure in the chamber (24) drops below the predetermined pressure, the sensor portion (140) moves into electrical contact with the contact can (200).  The engagement of the sensor portion (140) with the contact can (200) completes an electrical circuit to provide an indication of low pressure in the inflator (20).
Patent CA-2156689-C (CA)
Inventor: LANDFORS JOHAN
IPC: C01B11/02
Filed: 1995-08-22
Granted: 1999-04-27
Abstract: The invention relates to a process of producing chlorine dioxide comprising the steps: Providing a reactor with an aqueous  acidic  reaction  medium  containing  alkali  metal chlorate  and  phosphate;  reducing  chlorate  ions  in  said reaction medium to form chlorine dioxide; withdrawing chlorine dioxide gas from the reaction medium; withdrawing reaction medium from the reactor and transferring it to an electro-chemical cell; treating said reaction medium electrochemically to increase the acidity and decrease the content of alkali metal ions; recycling the acidified reaction medium to the reactor;  and adding make up alkali metal chlorate to the reaction medium before or after the electrochemical cell.
Patent CA-2175943-C (CA)
Inventor: SCHANK RICHARD L
IPC: G03G5/06
Filed: 1996-05-07
Granted: 2002-04-16
Abstract: An imaging member includes a charge generation layer and a contiguous charge transport layer containing a diamine and a compound within the scope of formula (II): (see formula II) wherein each R1 and R2 is independently one of an alkyl having 1 to 8 carbon atoms, aryl, alkaryl and aralkyl, where the aryl is a phenyl group or a condensed ring group, and where the alkyl group of the alkaryl and aralkyl has 1 to 4 carbon atoms, R3 and R4 are independently hydrogen or CH3, and R5 is one of an alkyl having 1 to 8 carbon atoms, aryl, alkaryl and aralkyl as defined above, or a disubstituted aminophenyl group wherein each substituent is independently one of an alkyl having 1 to 8 carbon atoms, aryl, alkaryl and aralkyl as defined above. A electrophotographic system includes a cleaning blade and the above imaging member drum.