baber/WOPTO huggingface dataset:
Patent CA-2078181-C (CA)
Title: Peel off coupon card and tracking system
Inventor: THOMPSON KENNETH
IPC: B42D15/00
Filed: 1992-09-14
Granted: 1994-11-01
Abstract: A coupon redemption card and tracking system includes a credit card size redemption coupon card used by the customer,  and a tracking sheet used by the redemption center such as a restaurant.          The redemption card has a plurality of mini coupons, which can be peeled off individually. Each redeemed coupon is affixed to the tracking sheet, which has dimensions of a dollar bill so that it can be placed in the till of a cash register.  The tracking system facilitates the accounting and inventory of redeemed coupons.  The coupon card is formed as two laminated layers of special paper joined together by a layer of adhesive material, and a layer of clear plastic film on the top face of the card. The base layer is fabricated from a special paper. An adhesive coating is applied to one side of the base layer. The peel off coupon layer is affixed to the adhesive coating. The finished layered sheet is printed on both sides, die-cut on the coupon side, and then laminated with the film on the other side.  Each coupon is removed from the card has adhesive to adhere the coupon to the tracking sheet. The small size of the mini coupons is convenient for the card holder and the redemption center. It eliminates the need to process diverse sizes and shapes of customer coupons.  The system can be used wherever one has to keep track of various redeemable coupons and the like.
Patent CA-2079646-C (CA)
Title: Succinimide derivatives of 2,5-dimercapto-1,3,4-thiadiazole
Inventor: KAROL THOMAS J
IPC: C10N30/04
Filed: 1992-10-01
Granted: 2003-04-22
Abstract: Disclosed are novel compounds prepared by reacting 2,5-dimercapto-1,3,4-thiadiazole with maleic anhydride and N-polyethylene amine-substituted succinimide. The compounds are dispersants or detergents, antiwear agents and antioxidants when incorporated into lubricating compositions. The novel compounds have the structural formula (See formula I) wherein x=0 to 4, and R represents an alkenyl radical having from 8 to 400 carbon atoms.
Patent CA-2091584-C (CA)
Title: Process for degassing and/or defoaming organic systems
Inventor: HERZIG CHRISTIAN
IPC: B01D19/04
Filed: 1991-10-04
Granted: 1996-08-06
Abstract: A process for defoaming and/or degassing organic systems by addition of an organopolysiloxane-containing anti-foaming agent to the organic system is characterized by the fact that the organopolysiloxane used is one composed of siloxane units hav-ing the general formulae (I) and (II), in which R is a univalent hydrocarbon residue with 1 to 18 carbon atoms per residue; A is a residue having the general formula (a), in which R1 is a residue having ihe formula -CR3H-, where R3 stands for a hydrogen atom or a univalent organic residue; R2 is a residue having the formulae -CR4H-CH2- or -CH2CH2CH2- where R4 stands for a hydrogen atom or a univalent organic residue; v and w represent each O or an integer, the sum of v + w being in aver-age 0 to 16; x and y represent each 0 or 1, the sum x + y being 1 or 2; a equals 1,2 or 3; b equals 0, 1 or 2 and c equals 1 or 2, the sum b + c not exceeding 3.
Patent CA-2092582-C (CA)
Title: Trenching apparatus
Inventor: YOUNG PAUL
IPC: E02F3/10
Filed: 1993-03-26
Granted: 1997-10-21
Abstract: A trenching machine having a tractor unit and a trenching bar mounted for transverse sliding movement on the rear-end portion of the tractor unit to any desired location within the transverse confines of the tractor unit.  Spoil generated by the trenching bar is deposited on either of a pair of transverse conveyors which are operable either to transport spoil transversely outwardly to the side of the trenching machine or transversely inwardly to a central hopper.  A longitudinal conveyor located on the center line of the trencher extends from a low position at the rear-end portion of the tractor unit at the bottom of the hopper forwardly and upwardly to a high position forwardly of the tractor unit.  A swinging conveyor is mounted for pivotal movement about both a vertical and horizontal axis forwardly of the tractor unit and below the output of the longitudinal conveyor.  Spoil transported on the longitudinal conveyor is deposited on the swinging conveyor which transports it for deposit outside the transverse confines or forwardly of the tractor unit.
Patent CA-2093477-C (CA)
Title: Hairpin spike pulling tool and machine therefor
Inventor: COTIC DENNIS J
IPC: E01B29/26
Filed: 1993-04-06
Granted: 1999-08-24
Abstract: A machine for removing hairpin spikes from railroad ties includes at least one hairpin spike pulling tool supported by the machine frame, each tool being positioned on one side of the rail for pulling spikes on that side of the rail. Each of the pulling tools includes a lower end portion having a pair of exposed hooks curved toward the center of the pulling tool and abutted against each other in a pivoting relationship. Each pulling tool is supported for movement from a retracted position to a position wherein the curved hooks of that pulling tool are positionable under the loop-shaped head of a hairpin spike on opposite sides of the spike.      The machine also includes apparatus for supporting the pulling tools for movement from the retracted position downwardly and toward the hairpin spikes into a position wherein the pulling tools engage the spikes with the curved hooks and then move upwardly to pull the spikes from the tie.
Patent CA-2095044-C (CA)
Inventor: VALINT PAUL L JR
IPC: C08J7/056
Filed: 1991-11-20
Granted: 2002-06-11
Abstract: A method of modifying surfaces of polymeric objects which comprises immersing the polymeric object in an aqueous dis-persion of a polymerizable surfactant, a cross-linking agent, and a free radical initiator and exposing the immersant to ultraviolet light to form a permanent, cross-linked surface coating on the object. Also disclosed are coated objects prepared by this method, which is particularly suited for coating contact lenses.
Patent CA-2097466-C (CA)
Title: Annular valve for a piston compressor
Inventor: LEHMANN MARKUS
IPC: F16K15/08
Filed: 1993-06-01
Granted: 1998-05-19
Abstract: The annular valve (10) comprises a valve seat (11) attached in the housing (1)  of the compressor,  an absorber (14) attached thereto at a distance and an annular sealing component (12), which can move between the valve seat and the absorber. Helical springs (2), which move the sealing component in the closing direction towards the valve seat, are distributed over its periphery between the absorber and the sealing component. Each helical spring (2) is fastened with one end in the absorber (14). In the region of the other end of each helical spring (2), the sealing component (12) is provided with guide means (6) for the respective spring end.
Patent CA-2099097-C (CA)
Title: Surface modified plastic blood collection tubes
Inventor: VOGLER ERWIN A
IPC: B01L3/14
Filed: 1993-06-23
Granted: 1998-06-23
Abstract: A glass or plastic article, preferably a blood collection tube, has two or more surface regions of different   surface   chemistry.  One   region  is substantially  glass-like   and   another region is substantially plastic-like. If the tube is glass, a region  of  the  tube  adjacent  the tube bottom is plastic-like. If the tube is plastic, a region of the tube adjacent the mouth of the tube is be glass-like.
Patent CA-2106334-C (CA)
Title: Miniature disconnect terminal
Inventor: KIRAYOGLU EROL M
IPC: H01R12/71
Filed: 1993-09-16
Granted: 1998-12-22
Abstract: A miniature disconnect terminal stamp-formed from thin sheet metal stock includes a mounting plate, a bridge, terminal tails extending to either side of the plate and bridge and a pair of hook-shaped spring members extending to one side of the bridge.          The spring members include series-oriented cantilever and torsion springs and rigid contact arms at the free ends of the members.
Patent CA-2108289-C (CA)
Title: Truck wheel-spacing changing method, and variable wheel- spacing truck, and ground facility therefor
Inventor: SUGIMOTO SUNAO
IPC: B61H9/00
Filed: 1993-10-13
Granted: 1999-01-05
Abstract: There is provided a truck wheel-spacing changing method in which a wheel-spacing of a truck is surely changed while the truck is self-propelled with passengers in a car or vehicle body on the truck and the running stability is not inferior to that of a conventional truck of a fixed wheel-spacing type, this method being able to be applied to both of a self-propelled truck and a tracted truck.         A variable wheel-spacing truck includes a pair of left and right bogie frames which are transversely movable relative to each other and can be fixedly connected with each other by releasable locking devices.  At least one of the wheels is slidable relative to the wheel shaft in an axial direction of the shaft.  When the truck moves from one railway of a track gauge onto a junction railway of a varying track gauge, a running paths pushes upwards auxiliary wheels of the locking means to release the locking devices.  Next, when the truck moves through the junction railway section, a pair of guide rails or a pair of rails give a push the wheels of the truck, thereby laterally shifting the left and right bogie frames each carrying the wheels relative to each other.  After a predetermined relative transverse movement of the bogie frames and wheels is completed, the running paths lower the auxiliary wheels of the locking devices, thereby activating the locking devices into a locking condition, and then, the truck is moved out of the junction railway, thereby completing a truck wheel-spacing changing operation.
Patent CA-2111922-C (CA)
Inventor: SMITH RONALD T
IPC: G02B5/32
Filed: 1993-12-20
Granted: 1997-01-28
Abstract: A holographic center high mounted stoplight (CHMSL) system for a vehicle having a rear window.   The CHMSL system includes a stoplight hologram secured adjacent the rear window, a playback illumination source for providing along a source optical axis a vertically converging beam that converges to a horizontal line focus, and a thick concave/convex lens responsive to the vertically converging beam for (1) controlling the vertically converging beam to converge to a line focus that is within said lens and further from the illumination source than such line focus would be without the lens and (2) providing an output beam along an output axis that is tilted upwardly relative to the source optical axis.   More particularly,  the thick concave/convex lens includes a concave cylindrical entrance surface  having  a  first  horizontal  cylinder  axis  that intersects the source optical axis, and a convex cylindri-cal exit surface having a second horizontal cylinder axis that is parallel to the first horizontal cylinder axis and is above the source axis such that the output axis is tilted upwardly relative to said source axis.
Patent CA-2117193-C (CA)
Inventor: HELLMAN LARS T
IPC: A61K39/39
Filed: 1992-09-25
Granted: 2008-06-17
Abstract: A vaccine is provided herein for alleviating the symptoms of IgE-mediated allergic reactions in a mammal. The vaccine contains a protein having the entire amino acid sequence of the constant CH2-CH:3 domains of the epsilon chain of the IgE  molecule from the mammal species in question, or a structurally-stable unit of the amino acid sequence containing more than 12 amino acids, in its original or in a mutated or multimerized form.
Patent CA-2119220-C (CA)
Inventor: BODIN WILLIAM KRESS
IPC: G09G5/39
Filed: 1994-03-16
Granted: 2000-10-17
Abstract: A method and system for the simultaneous high resolution display of multiple virtual DOS applications within a data processing system. The data processing system preferably includes a processor, a memory coupled to the processor and a display device coupled to the memory and processor. Multiple programs operating within the data processing system under the control of an operating system are capable of outputting multibank high resolution graphic displays. Each time an application which is either operating as a background task or displayed within a graphics applications window attempts to write to the display device the display data is written to a logical video buffer which is designated within a portion of the memory within the data processing system. A bank management function is provided in association with the logical video buffer and permits multibank high resolution graphic displays to be simultaneously maintained for multiple virtual DOS applications. A transition of an application from background task to foreground task will result in the writing of the logical video buffer to the display device or, alternately, at least a portion of the logical video buffer may be written to a displayed window within the graphics applications program, providing for the simultaneous high resolution display of multiple applications within a data processing system.
Patent CA-2124990-C (CA)
Title: Pharmaceutical agents for treatment of emesis
Inventor: DESAI MANOJ C
IPC: A61K31/445
Filed: 1994-06-02
Granted: 1999-04-20
Abstract: The present invention relates to a method of treating or preventing emesis in mammals,  including humans, using certain quinuclidine derivatives, piperidine derivatives, azanorbornane derivatives and related compounds.
Patent CA-2128060-C (CA)
Title: Pipe coupling
Inventor: BLOSE THOMAS LAYTON
IPC: F16L15/04
Filed: 1994-07-14
Granted: 1998-12-08
Abstract: A pipe  coupling or connection comprises  a  female coupling component and a mating male coupling component.  Each component is matingly threaded for coupling engagement, and each is provided with an adjacent frusto-conical sealing surface.  The sealing surface is provided with a controlled surface roughness, viz. very shallow fine surface variations, preferably formed as microgrooves at a pitch small relative to the pitch of the threads.  The slope of the frusto-conical surface of the sealing surface of the male component is slightly mismatched with that of the sealing surface of the female component to simulate the bearing force vs. axial distance characteristic of shrunk-fit circular cylindrical sealing surfaces.  The mismatch enables the sealing pressure to be above a design minimum throughout the entire sealing area yet higher at each end of the sealing area.          As the coupling is assembled, thread interference in the vicinity of  the sealing surface lags the occurrence of  interference between the sealing surfaces.  Load threads are provided with negatively inclined load flank faces.   The slope of the load thread pitch line of the male element is slightly steeper than the slope of the load thread pitch line of the female element.          Load thread interference values and tolerances are selected to enable the shrunk-fit cylindrical sealing surface simulation to be met over the range of tolerances provided.  The envelope of the range of curves of interference vs.  distance along the effective pin sealing surface area has a positive slope.  The effective sealing area is at least about one-third and preferably at least about half of the available sealing area.
Patent CA-2128401-C (CA)
Title: Butterfly valve assembly
Inventor: PEARSON JAMES EUGENE
IPC: F16K1/22
Filed: 1994-07-19
Granted: 2000-05-23
Abstract: A valve of the type for controlling engine coolant flow to a heater core having a resilient butterfly valve formed of thermoplastic elastomeric material. The outer periphery is sufficiently resilient to absorb actuator overtravel in the seated condition. The butterfly has formed integrally therewith a central hub with torque-transmitting surfaces molded therein and a pair of oppositely disposed stiffeners extend outwardly from the hub in the central region of the butterfly. Assembly is simplified by placing the butterfly in the body and inserting a winged actuator shaft through journal holes in the body into the butterfly hub such that the wings on the shaft engage the torque-transmitting surfaces in the hub.
Patent CA-2132302-C (CA)
Title: Method for production of a milk like product, the milk like product, and use of the milk like product
Inventor: NIELSEN PER MUNK
IPC: A23L27/60
Filed: 1993-05-05
Granted: 2003-12-09
Abstract: The method for production of a milk product is characterized by the fact that transglutaminase is added to a liquid containing milk proteins, that the liquid contains Ca++, if required, in an amount sufficient for the reaction catalyzed by the transglutaminase, and that the pH of the liquid; if required, is adjusted to a value of between 5.5 and 7.5. Hereby a milk like product which is physically more stable than the hitherto known milk like products is obtained. By further addition of an enzyme with milk clotting activity a milk like product with a mouth feeling like a fat emulsion and usable as a fat substitute can be produced.
Patent CA-2132471-C (CA)
Title: High efficiency multispot facet tracked raster output scanning system
Inventor: FISLI TIBOR
IPC: H04N1/053
Filed: 1994-09-20
Granted: 2000-04-11
Abstract: The present invention is a novel raster output scanner (ROS) configuration that employs modulated laser diodes as the light source. Each laser diode is coupled to a dedicated driver that modulates the light beam according to digital video signal data. The present invention employs a single-channel acoustic-optic cell that deflects the multiple beams to maintain proper facet tracking. A single transducer is coupled to the single-channel acoustic-optic cell that generates the necessary acoustic wave to maintain proper tracking.
Patent CA-2137012-C (CA)
Inventor: THEURER JOSEF
IPC: E01B27/10
Filed: 1994-11-30
Granted: 2004-09-14
Abstract: A machine installation (1) for treating the ballast bed of a track (2) has a first machine (3) comprising a machine frame (5) supported on on-track undercarriages (4).      Associated with this machine frame are a vertically adjustable excavating device (12) for picking up ballast lying beneath the track and a first conveyor belt arrangement for removing the picked-up ballast and a second conveyor belt arrangement (16) for conveying bulk material, of which the intake end (18) is situated at the end of the machine for receiving bulk material from a second machine (7). Associated with the second machine (7) which is arranged so as to precede the first machine (3) in the working direction is a second excavating device (23) comprising an excavating chain (24) for picking up bulk material lying on the track (2) and a third conveyor belt arrangement (26) for the transfer of bulk material, an intake end (27) of the third conveyor belt arrangement (26) being arranged beneath a discharge end (25) of the second excavating device (23).
Patent CA-2152821-C (CA)
Inventor: KING RAY JAMES
IPC: A61N1/44
Filed: 1993-12-29
Granted: 2005-03-29
Abstract: A power amplifier for use in medical and veterinay testing and therapy. A  tunable pulse-width-modulated signal generator (110) is connected to a gating element (120) to provide a digital waveform suitable for comprehensive control of the waveform shape and average output power provided by the apparatus. The digital waveform controls a power driver (130). Through use of a high-Q resonant circuit including a capacitor and a primary winding (150), a coil assembly (1), a voltage of about 150-400 volts is increased to about 10 kilovolts at the primary winding (150). The coil assembly has a secondary:primary turns ratio of 10:1, resulting in a signal of about 100 kilovolts at the output of the secondary winding (170). This arrangement produces a corona discharge at a discharge pin (320) connected to the secondary winding (170). A manual tuning embodiment and a self tuning embodiment are disclosed.
Patent CA-2152864-C (CA)
Inventor: NERI GIUSEPPE
IPC: B44D3/08
Filed: 1995-06-28
Granted: 2005-05-03
Abstract: The present invention relates to an apparatus for mixing liquid products, in particular to prepare coloring substances for paints and the like. the apparatus includes a base supporting a substantially horizontal table with supports, on the top face thereof, a plurality of vessels for the liquid products to be mixed. Inside each vessel is applied a stirring element which projects by its driving end portion from the vessel. The apparatus further includes a coupling element for coupling the driving end portions of the stirring elements to a driving device which can be actuated to simultaneously drive the stirring elements.
Patent CA-2154181-C (CA)
Inventor: HUNT WILLIAM JOSEPH
IPC: A47G25/48
Filed: 1994-02-04
Granted: 1999-10-12
Abstract: There is disclosed a clip (1) for a garment hanger on which clothes are hung directly, and which has front and rear gripping plates (2, 3) which are movable one relative to the other. A locking mechanism, preferably in the form of an arm (5) on a fixed one of the two plates (2, 3) interlocks the movable plates for gripping a garment within the clip (1). A movable pressure device (9) preferably mounted on the movable one of the plates (2) is used to effect release of the locking means (5, 7) and immediately the locking means (5, 7) is released, the pressure device (9) acts directly on the movable plate (2) to force it away from the other plate (3) to thereby quickly and easily release a garment previously held within the clip (1). In an alternative form a flange (32) extends from the movable plate (2) and has a locking tooth (33) thereon engageable with teeth (27) on the release arm (26). The flange (32) extends across the teeth (27) in use to prevent delicate garments becoming entangled in the locking mechanism between the movable plates (2, 3). Such constructions are particularly useful with soft clear plastics material such as K-Resin Copolymers.
Patent CA-2157568-C (CA)
Title: Method of manufacturing needles
Inventor: STEVENS JOHN FREDERICK
IPC: B29D22/00
Filed: 1994-03-09
Granted: 2001-10-02
Abstract: A method for manufacturing an integral one-piece needle, the method comprising feeding a polymeric resin into a mould cavity and injecting a fluid under pressure into at least a portion of the cavity to eject therefrom the central region of the polymeric resin. This creates an annulus of polymeric resin having an orifice therethrough, the annulus of polymeric resin forming die cannula of the needle, the mounting hub being provided by the remaining portion of the cavity.
Patent CA-2158538-C (CA)
Inventor: CONCANNON LINDA M
IPC: A61Q5/00
Filed: 1995-09-18
Granted: 2000-02-22
Abstract: There is provided a hair care composition for protecting hair that is subjected to heat styling by a hair dryer or curling device.  The composition comprises two compositions that naturally separate into distinct layers but easily intermix before use.  The first composition prevents the hair from overdrying or heat dryout and, thus, leaving it brittle and more susceptible to cracking.          The second composition prevents the hair from physical damage such as the rubbing and wear caused by brushing or combing.  Thus, the present invention provides protection from heat dryout and physical damage that are commonly associated with heat styling.
Patent CA-2160866-C (CA)
Title: Method and apparatus for receiving a universal input voltage in a welding power source
Inventor: THOMMES JAMES M
IPC: B23K9/095
Filed: 1995-10-18
Granted: 1999-04-13
Abstract: A method and apparatus for providing a welding current is disclosed.  The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier that rectifies the ac input into a dc signal.  A dc voltage stage converts the dc signal to a desired dc voltage and an inverter inverts the dc signal into a second ac signal. An output transformer receives the second ac signal and provides a third ac signal that has a current magnitude suitable for welding.  The welding current may be rectified and smoothed by an output inductor and an output rectifier.  A controller provides control signals to the inverter and an auxiliary power controller that can receive a range of input voltages and provide a control power signal to the controller.