baber/WOPTO huggingface dataset:
Patent CA-2124880-C (CA)
Title: Current sense circuit apparatus for power amplifier control
Inventor: ROYDS IAN DOUGLAS
IPC: H03G3/20
Filed: 1994-06-01
Granted: 2000-04-25
Abstract: A power control system for controlling the power output of a power amplifier. The power control system draws power from a variable voltage supply, such as a battery, and receives a signal input which indicated the desired power output. The power control system includes a power amplifier for amplifying an electrical signal which draws a current from the variable voltage supply. The power amplifier is of the type wherein the operating current drawn by the power amplifier as indicative of the power output. The power control system additionally includes a current sense circuit, which is operably connected between the variable voltage supply and the power amplifier and which senses the current drawn by the power amplifier and simultaneously produces an output current, which is directly correlated to the sensed current. The output current and the signal input are compared in a controller which produces a control signal for controlling the power output by the power amplifier.
Patent CA-2125796-C (CA)
Title: Vacuum buffer
Inventor: FIELDS WILLIAM A
IPC: A47L11/40
Filed: 1994-06-14
Granted: 2004-12-14
Abstract: A high speed propane power buffer is provided with a dust evacuation system. A peripheral skirt is telescopically depended from a hood overlying the high speed rotating buffer pad. This skirt, at the extremity adjacent the surface to be polished, is supplied with angularly inclined grooves sloped away from the radial disposition with respect to the buffer. These angularly inclined grooves slope from the outside of the skirt to the inside of the skirt in the direction of buffer disc rotation at the disc periphery and are maintained by the telescoping skirt immediately adjacent the surface being polished. Entrained air is drawn at the surface being polished in the direction of buffer disc rotation from the outside of the skirt to the inside of the skirt through the slanting louvers establishing a buffer dust confining boundary at the depending peripheral skirt immediately adjacent the floor.
Patent CA-2126250-C (CA)
Title: Method, reagents and kits for the detection of neisseria gonorrhoeae
Inventor: PUROHIT ASHOK P
IPC: C12Q1/68
Filed: 1994-06-20
Granted: 2001-06-12
Abstract: Disclosed are methods, reagents and kits for detecting Neisseria gonorrhoeae, as well as methods, reagents and kits for detecting Neisseria gonorrhoeae and/or Chlamydia trachomatis, in fluid samples, using primers and probes specific for each bacterial species.
Patent CA-2133286-C (CA)
Title: Apparatus and method for measuring a borehole
Inventor: MOAKE GORDON
IPC: E21B47/08
Filed: 1994-09-29
Granted: 2005-08-09
Abstract: An apparatus and a method are provided for measuring the caliper of a borehole, and the standoff of a drilling tool from the walls of a borehole during a drilling operation. The apparatus includes three or more sensors, such as acoustic transducers arranged circumferentially around a downhole tool or drill collar. The transducers transmit ultrasonic signals to the borehole wall through the drilling fluid surrounding the drillstring and receive reflected signals back from the wall. Travel times for these signals are used to calculate standoff data for each transducer. The standoff measurements may be used to calculate the caliper of the borehole, the eccentricity of the tool in the borehole, and the angle of eccentricity with respect to the transducer position. The eccentricity and angle computations may be used to detect unusual movements of the drillstring in the borehole, such as sticking, banging, and whirling.
Patent CA-2138106-C (CA)
Inventor: GALGANI DANILO
IPC: H04L7/00
Filed: 1994-12-14
Granted: 1998-09-22
Abstract: CMOS technology high speed digital signal transceiver, in which  the  receiver  has  a  clock  signal  extraction circuit, which is capable of self-aligning on incoming data with no spurious locks.  Utilizing the PLL technique, the circuit generates a clock signal locked to the incoming signal utilizing a local oscillator, voltage-controlled by two feedback loops, a main one for frequency and phase corrections and a secondary one for phase correction. Moreover,  original  circuit  solutions  for  the  phase detectors and the low-pass filters are also envisaged. Fig. 4.
Patent CA-2139716-C (CA)
Inventor: LALANDE PHILLIP T
IPC: E21B27/00
Filed: 1995-01-06
Granted: 1999-09-21
Abstract: A reverse circulation procedure is set forth in which selected shoes are attached to a reverse circulation tool.      Debris, junk and other trash accumulating in a well borehole is captured and removed. The circulation delivers fluid flow in the annular space downwardly at the bottom of the tool of the present disclosure which is directed in the vicinity of a shoe affixed to the lower end. Trash or debris is captured by this process. In one instance, the trash is captured in an elongate container below the reverse circulation tool. In another instance, the trash is collected within the tool itself. The tool has a fluid flow path through an inner tube which is selectively perforated and which directs flow upwardly to one or more deflectors to assure that junk or trash does not flow through the tool.
Patent CA-2140611-C (CA)
Title: Dual shower fixture
Inventor: ZWEZDARYK SHANE
IPC: B05B1/18
Filed: 1995-01-19
Granted: 1997-12-02
Abstract: A shower assembly for mounting at least two generally horizontally spaced-apart shower heads to a single shower outlet. The assembly has at least two spaced-apart shower heads and a fluid conduit connecting the shower heads to a common fluid inlet and providing fluid communication between each of the shower heads and the fluid inlet. The assembly further has a connector for connecting the fluid inlet to the shower outlet and providing fluid communication therebetween. The assembly also has at least one fluid flow interruptor for interrupting fluid flow through at least one of the shower heads.
Patent CA-2140858-C (CA)
Inventor: HURME TAISTO T
IPC: C07D275/06
Filed: 1993-07-16
Granted: 1999-11-09
Abstract: L'invention concerne un procédé pour dénaturer le sel destiné à l'épandage sur les routes par l'addition d'un agent répulsif tel que le benzyldiéthyl-(2,6-xylylecarbamoyl-méthyl)ammonium benzoate (c'est-à-dire le dénatonium benzoate) ou la N,N,N,N-benzyldiéthyl-(2,6-xylylcarbamoyl-méthyl)ammonium saccharine (c'est-à-dire la dénatonium saccharine) ou la brucine ou un dérivé de ceux-ci, à du sel, soit avant d'appliquer le sel sur la route, soit après, par atomisation ou par aspersion
Patent CA-2142340-C (CA)
Inventor: SINGLETON WILLIAM ANDREW
IPC: B60K28/16
Filed: 1993-08-19
Granted: 2003-05-13
Abstract: An engine traction control system generates a control cycle of a varying duty cycle which controls the pressure level in a pneumatic actuator in the engine power control (46) linkage to thereby reduce engine power when the driven wheels (24, 28) begin slipping during the vehicle acceleration. The duty cycle is set as a function of wheel speed error between the average wheel speeds of the driven and nondriven wheels (16, 20), and also as a function of the change in the error between calculation cycles.
Patent CA-2146686-C (CA)
Inventor: BAILLELY GERARD MARCEL
IPC: C11D3/50
Filed: 1995-04-10
Granted: 1999-08-31
Abstract: A granular detergent composition is disclosed comprising a surfactant, soluble encapsulates of perfume and a detergency builder comprising zeolite P having a silicon to aluminium ratio not greater than 1.33, preferably not greater than 1.07, (zeolite MAP).      The composition preferably has a bulk density of at least 650g/l and may optionally contain percarbonate.      Use of zeolite MAP as detergency builder reduces perfume leakage which is a problem associated with conventional detergent compositions containing perfume capsules.
Patent CA-2147436-C (CA)
Inventor: MARCO LESLIE S
IPC: B65D71/24
Filed: 1995-04-20
Granted: 2000-06-27
Abstract: In a novel, unitized package having an upper tier and a lower tier,  each tier comprises  substantially identical containers, such as beverage cans of a type having a chime at an upper end,  in a substantially rectangular array and a carrier made from a single sheet of resilient polymeric material,  such as low density polyethylene.  A covering sheet and a dividing sheet are employed, each being made from a paperboard material. The covering sheet is folded so as to form a cover panel, which covers the upper ends of the containers of the upper  tier,  and  two  lateral  panels,  which  extend downwardly from the cover panel,  along and below the containers of the upper tier, and along the containers of the lower tier.  The cover panel of the covering sheet has  slots  receiving  portions  of  the  chimes  of  the containers of the upper tier.   The dividing sheet is folded so as to form a divider panel, which covers the upper ends of the containers of the lower tier, and two lateral  flaps,  which  extend  downwardly  between  the lateral panels of the covering sheet and the containers of the lower tier.   The divider panel of the dividing sheet may have slots like those of the cover panel of the covering sheet.  The lateral panels of the covering sheet are affixed adhesively to the carriers of the respective tiers and to the lateral flaps of the dividing sheet.
Patent CA-2147847-C (CA)
Inventor: PETERSON JOHN
IPC: G06T15/80
Filed: 1994-01-03
Granted: 2002-06-11
Abstract: A method and system for processing graphic objects on a computer with a memory and an attached display in a flexible manner is disclosed. The objective is accomplished by loading die graphic object into a memory and rendering the graphic object based on the processing of vertex data in a modular manner separated from edge and triangle data (shards) to increase the efficiency of the rendering process. The method and system include capability for processing graphic objects on a computer with a memory and an attached display. The processing commences by receiving a plurality of vertices into memory and storing them. Then, triangles are generated for a surface based on the plurality of vertices. Finally, a surface is rendered using the triangles to form the surface on the attached display.
Patent CA-2148187-C (CA)
Inventor: RZESZEWSKI THEODORE S
IPC: H04N5/21
Filed: 1995-04-28
Granted: 2000-12-12
Abstract: A television receiver having a microprocessor controlled disturbance control system that can operate totally under user control or automatically.  The microprocessor generates an on-screen menu which presents noise control options to the user.  In the preferred embodiment, the menu options allow the user to ameliorate the effects of impulse noise disturbances, longer duration disturbances, continuous wave form (CW) disturbances, or some combination of the three, without requiring the user to understand the nature of these disturbances.  The present invention also provides compensation circuitry for reducing the effects of impulse noise in the video signal that is controlled by responding to the high frequency luminance signal produced by a comb filter, and also responding to the composite video picture signal.  High frequency luminance and amplitude variations that are outside of the composite video signal range are indicative of the presence of impulse noise.  These variations are detected and used to produce a control signal for activating tracking and hold circuitry for reducing the effect of the impulse.
Patent CA-2148706-C (CA)
Title: Use of alkoxylate of 2-propyl heptanol
Inventor: DAHLGREN LENNART
IPC: C07C43/11
Filed: 1993-11-12
Granted: 2005-04-12
Abstract: The invention relates to the use of an alkoxylate having the general formula (I): C5H11CH(C3H7)CH2O(A)n H, wherein A is an alkyleneoxy group having 2-4 carbon atoms and n is 2-16, preferably 3-12, in detergent compositions for degreasing hard surfaces.
Patent CA-2150060-C (CA)
Title: Seamless multimedia conferencing system using enhanced endpoint devices
Inventor: BIGGS JOHN T
IPC: H04L12/64
Filed: 1995-05-24
Granted: 2000-01-11
Abstract: Several novel methods are disclosed for implementing a multimedia conference. In connection with a first embodiment, a conference is initiated when the communications link establishment device of a first endpoint device establishes a point-to-point communications link with a second endpoint device over the network. Next, the user of the first or second endpoint device selects an option of setting up a multipoint, multimedia conference by entering a request into the user interface device of the respective endpoint device. The request is forwarded to the first endpoint device endpoint processor which commands the first endpoint device communications link establishment device to establish a communications link with the reservation system. The first endpoint device endpoint processor then issues an information request to the reservation system for a network address (and/or telephone number) and a conference identification number uniquely specifying a given multimedia conference. The reservation system relays this information request to the MMS. The MMS provides the reservation system with the conference identification number and the network address (and/or telephone number). The conference identification number and network address (and/or telephone number) are downloaded from the reservation system processor into the first endpoint device endpoint processor. The conference identification number and network address (and/or telephone number) are stored in endpoint memory, and are also downloaded to the second endpoint device endpoint processor. The point-to-point communications link between the first and second endpoint devices is disconnected. The first and second endpoint device endpoint communications link establishment devices each establish a communications link with the MMS at the network address (and/or telephone number) downloaded into respective endpoint device memories. Multimedia conferences established according to various preferred embodiments disclosed herein are perceived by endpoint device users to be procedurally continuous, such that, once a communications link is established with a given endpoint device, this communications link is perceived to be substantially continuous until such time as the multimedia conference has been fully implemented.
Patent CA-2158527-C (CA)
Inventor: HAINING GORDON JOHN
IPC: B01J23/28
Filed: 1995-09-18
Granted: 2006-11-21
Abstract: This invention relates to a novel catalyst composition comprising a heteropolyacid and a siliceous support which is in the form of extrudates or pellets and to a process for hydrating olefins to the corresponding alcohols in the vapour phase in the presence of such a catalyst composition. By using the specific catalyst composition described herein it is possible not only to increase the space- time-yield of a process but also to prolong the life thereof thereby reducing the frequency with which the catalyst is changed or replaced on a plant, especially in an olefin hydration process.
Patent CA-2163900-C (CA)
Inventor: HIRSCHOVITS ADIEL
IPC: A47B21/03
Filed: 1994-06-03
Granted: 2000-11-28
Abstract: Support (1) pour souris constitué d'une pièce plane réalisant la base et d'une pièce d'union (5) ainsi que d'une pièce de serrage (6) permettant de fixer la base (3) de la souris au rebord d'une structure plane, de sorte que cette base puisse pivoter.
Patent CA-2165642-C (CA)
Title: Ethylene-.alpha.-olefin-nonconjugated polyene random copolymer, rubber composition, and process for preparing the random copolymer
Inventor: SAGANE TOSHIHIRO
IPC: C08F210/18
Filed: 1995-12-19
Granted: 2000-07-18
Abstract: Disclosed is an ethylene-.alpha.-olefin-nonconjugated polyene random copolymer which is a random copolymer of (a) ethylene,  (2) an .alpha.-olefin of 3 or more carbon atoms and (c) a nonconjugated polyene containing, in one molecule, one carbon-to-carbon double bond polymerizable by a metallocene catalyst among carbon-to-carbon double bonds, and has such properties that (i) the copolymer contains (a) units derived from ethylene and (b) units derived from the .alpha.-olefin of 3 or more carbon atoms in a molar ratio of 40/60 to 95/5 ((a)/(b)),  (ii) the iodine value is in the range of 1 to 50,  (iii) the intrinsic viscosity (?), as measured in decalin at 135 °C, is in the range of 0.1 to 8.0 dl/g, and (iv) the ratio g?* of the intrinsic viscosity (?) of the copolymer defined above to the intrinsic viscosity (?)blank of a linear ethylene-propylene copolymer having the same weight-average molecular weight (measured by light scattering method) as the ethylene-.alpha.-olefin-nonconjugated polyene random copolymer and having an ethylene content of 70 % by mol, (?)/(?)blank, is in the range of 0.2 to 0.9 or the ratio g' of the intrinsic viscosity (?) of said random copolymer defined above to the intrinsic viscosity (?)blank' of a linear ethylene-propylene copolymer having and ethylene content of 70 % by mol which is determined by measurement of gel permeation chromatography (GPC) of ethylene-.alpha.-olefin-nonconjugated polyene random copolymer in orthodichlorobenzene at 140 °C,  (?)/(?) blank', is in the reange of 0.2 to 0.9.  Also disclosed are a process for preparing the random copolymer and a vulcanizable rubber composition containing the random copolymer.  The ethylene-.alpha.-olefin-nonconjugated polyene random copolymer and the rubber composition are excellent in weathering resistance, ozone resistance, mechanical strength and processability.
Patent CA-2167755-C (CA)
Inventor: LUM SANFORD S
IPC: G06T11/00
Filed: 1996-01-22
Granted: 1999-11-09
Abstract: A method of controlling the display of graphics data on a computer display, the computer comprising a draw engine, comprised of detecting predetermined logical condition of a draw operation for display, saving the state of the draw engine, performing a new draw operation, and restoring the state of the draw engine.
Patent CA-2173943-C (CA)
Title: Catamenial absorbent structures
Inventor: RICHARDS MARK RYAN
IPC: A61F13/53
Filed: 1994-10-20
Granted: 2000-03-28
Abstract: Thermally bonded absorbent structures for catamenial products, in particular catamenial pads, that provide improved ability in acquiring distributing and storing aqueous body fluids especially menstrual fluids, as well as better fit and comfort for the user of the products. These structures comprise an optional thermally bonded secondary topsheet, a thermally bonded absorbent core having a relatively higher capillary suction primary fluid distribution layer, an optional but preferred relatively lower capillary suction secondary distribution layer, a storage layer having absorbent gelling material, and an optional fibrous "dusting" layer. These thermally bonded absorbent structures are particularly useful with catamenial pads having primary fluid pervious topsheet selected from apertuted formed film topsheets and high loft nonwoven topsheets.
Patent CA-2174371-C (CA)
Title: Method for adjusting valve sealing engagement
Inventor: HOLTGRAVER EDWARD G
IPC: F16K1/226
Filed: 1996-04-17
Granted: 1999-10-26
Abstract: A method for adjusting sealing engagement of a valve seat includes providing a valve with a disk in a flow passageway and a valve seal with a seat positioned for sealing engagement with the disk, the valve body and seal together defining a channel having a seal surface lubricated to resist adhesion of the surface and polymeric material, the valve body defining a passage for external access to the channel; injecting liquid polymeric material through the passage into the channel, the polymeric material in the channel pressuring the valve seat toward sealing engagement with the disk; allowing the polymeric material to harden; producing a tunnel through the hardened polymeric material from an external port to the lubricated surface of the seal; and injecting liquid polymeric material under pressure through the tunnel into the channel and causing the liquid polymeric material to flow along the lubricated surface of the seal to collect in selected regions to improve sealing engagement of the seat with the disk.
Patent CA-2175510-C (CA)
Inventor: IWATA MASAO
IPC: F02B75/16
Filed: 1996-05-01
Granted: 2005-02-01
Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor , it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.
Patent CA-2177093-C (CA)
Inventor: SINGH VISHNU DEO
IPC: C07C275/00
Filed: 1996-05-22
Granted: 2007-01-09
Abstract: An integrated ammonia/urea process and a plant for carrying out the same. The process comprises recycling a high pressure purge stream made up mostly of air from the urea synthesis cycle to the autothermal reformer in a syngas production unit of the ammonia process. In such a manner, compression energy required for ammonia synthesis can be reduced since a portion of the high pressure air feed to the autothermal reactor is supplied by the urea purge stream recycle. In addition, the equipment needed to clean up the urea purge stream is largely eliminated.
Patent CA-2181346-C (CA)
Title: Device for wound healing by means of light
Inventor: THIBERG ROLF
IPC: A61N5/06
Filed: 1995-01-19
Granted: 2001-06-05
Abstract: A device for healing wounds and sores with the aid of light, including a lig ht emitting element which is intended to lie against or be held close to a wound or sore on the body of an individual, and drive mea ns for driving the light emitting element wherein the li ght emitting element includes light emitting diodes or like devices and is const ructed to emit infrared light. The  invention is charact erized in that the drive means (8, 9, 19) is constructed to cause the light emittin g element (1) to emit infrared light in a first stage fo r a first predetermined length of time and thereafter to emit visible red light in a s econd stage for a second predetermined length of time; i n that the drive means (8, 9, 10) is constructed to cause the light emitting element (1 ) to pulsate the emitted infrared light and the emitted red light respectively in accordance with a predetermined series of pulse frequencies over said predetermined time  periods.
Patent CA-2181871-C (CA)
Inventor: SICH GARY M
IPC: B61H11/06
Filed: 1996-07-23
Granted: 2000-11-07
Abstract: A brake system is provided for a multi-platform railroad car in which a single microprocessor is employed to control the car brakes. In one embodiment, a single electro-pneumatic control unit provides a common brake pressure to the brakes of each truck in accordance with the truck design net brake ratio and load weight of whichever truck requires the lowest brake pressure. In a second embodiment of the invention, the brakes on separate truck sets are provided with different common brake pressures by employing separate electro-pneumatic control units for each truck set under control of the microprocessor. In such an arrangement, the different common brake pressure on one truck set can be increased to make-up at least a portion of a brake deficit on another truck set due to light car loads associated with the other truck set in order to meet or at least closely approach the commanded net braking ratio for the entire multi-platform car.