baber/WOPTO huggingface dataset:
Patent CA-2099622-C (CA)
Title: Authentication system
Inventor: MOLEE WARREN F
IPC: G09F3/02
Filed: 1993-06-24
Granted: 1998-07-14
Abstract: An authentication system, method and article for memorabilia and other forms of articles wherein a hologram is affixed to the article with a tamper-proof adhesive.  The hologram has thereon a unique code number.  A certificate of authenticity is provided with the article and it includes a like or different hologram, but with a matching unique code number.  A master record or list of the unique code number and related article to which the code number applies is maintained by an entity which also provides a registration "hotline."  A purchaser of the article can register that article, and at any item in the future when the article is sold or otherwise transferred, its authenticity can be verified through the registration hotline.
Patent CA-2100063-C (CA)
Title: Apparatus and method for measuring a blood parameter
Inventor: HEINEMANN STAN O
IPC: A61B5/1459
Filed: 1991-12-27
Granted: 2002-08-27
Abstract: An apparatus (11) for measuring a blood parameter comprising a red light source (27) and an infrared light source (29) for directing light toward a blood-receiving location (27) and a detector (31) for receiving light from the first and second light sources which has been back scattered by the blood. The intensity of the first light source is adjusted so that the intensity of light at the detector (3l) from the first light source (27) remains substantially constant over a range of values of the blood parameter and the intensity of the second light source (29) is adjusted so that the intensity of light at the detector (31) from the second light source (9) is substantially constant over a range of values of the blood parameter. A  signal is provided which is related to the intensity of one or both of the light sources and which provides an indication of the blood parameter. A circuit is provided to compensate for errors resulting from the light sources.
Patent CA-2100670-C (CA)
Title: Production of stable aqueous hydrolyzable organosilane solutions
Inventor: AVERY RICHARD W
IPC: C11D1/835
Filed: 1991-11-27
Granted: 1996-06-11
Abstract: A method of improving the stability and broadening the range of pH stability of an aqueous solution of from about 0.001 % to 5 % by weight of a water soluble organosilane containing hydrolyzable groups such as methyltrimethoxysilane, 3-(trimethox-ysilyl)propylimethyloctadecyl ammonium chloride and 3-(trimethoxysilyl)-propylmethyldi(decyl) ammonium chloride by the use of 0.05 % to 10 % by weight of a water soluble organic quaternary ammonium compound having at least one nitrogen-bonded hydrocarbon group of at least 8 carbon atoms and being free of silicon atoms, such as benzalkonium chloride, along with from about 0.5 % to 30 % by weight of at least one surfactant selected from the group consisting of nonionic, amphoteric sarcosine an-ionic, and cationic surfactants other than the water soluble ammonium compounds. The pH of the solution can be ad-justed to from about 1 to about 13.5 with a suitable acid or base. The resulting stable aqueous solutions are useful for depositing the water soluble organosilane on a vafiety of substrates to, among other things, serve as coupling agents, waterproofing agents and to render substrates antimicrobial and algicidal depending upon the nature of the organosilane.
Patent CA-2102671-C (CA)
Inventor: SMITH BRADLEY W
IPC: B60R21/26
Filed: 1993-11-08
Granted: 1996-07-02
Abstract: A gas generator includes a chamber in which inert gas under high pressure is stored, a diffuser chamber, and a chamber containing a pyrotechnic heater and initiator.  Upon receiving an electrical signal the initiator fires igniting the pyrotechnic charge.  As pressure in the combustion chamber of the pyrotechnic heater rises and exceeds the storage chamber pressure, a plug in a shoulder covering the pyrotechnic nozzle orifice is unseated, subsequently rupturing a thin metal sealing diaphragm since the latter is unsupported for a pressure differential in this direction.  Hot gas and particles from the burning pyrotechnic heat the stored gas causing a rapid pressure rise in the storage chamber.  When the storage chamber pressure exceeds the structural capability of a thin metal disc between the diffuser and storage chambers, it ruptures allowing the heated gas to vent through the diffuser orifices into the air bag assembly.
Patent CA-2103948-C (CA)
Inventor: O'DANIEL GREGORY FRANCIS
IPC: F16H41/28
Filed: 1993-08-12
Granted: 1996-07-09
Abstract: A torque converter has an end cover or input shell which is stamped from a sheet metal plate and has a stiffening fluid portion and an outer flow formed annular rim.  The impeller, turbine and stator are assembled along with a torque converter clutch after which the rim portion of the end cover is welded to the impeller.  The impeller and the cover have a flange or radially extending portion that is selectively trimmed to control the dynamic balance of the assembly.  The turbine member is cast with the outer core and blade portions integral and an inner core member is welded thereto.  This is completed prior to assembly within the torque converter.
Patent CA-2107215-C (CA)
Inventor: CASTAING JEAN
IPC: F25B17/08
Filed: 1993-02-10
Granted: 2001-04-17
Abstract: PCT No. PCT/FR93/00135 Sec. 371 Date Oct. 7, 1993 Sec. 102(e) Date Oct. 7, 1993 PCT Filed Feb. 10, 1993 PCT Pub. No. WO93/16339 PCT Pub. Date Aug. 19, 1993.A cooling and heating device using a chemical reaction comprising at least four reactors, each containing a salt capable of chemically reacting with a gas, an enclosure for receiving gas from the reactors and an enclosure for conveying gas to the reactors. The device is arranged so that, during the chemical reaction, two reactors are at the same higher pressure level, while two reactors are at the same lower pressure level. According to the invention, the device also comprises a heat-transporting fluid circuit for transferring heat between the reactors, operating at the same presure level.
Patent CA-2113718-C (CA)
Inventor: ANJAN YELLAPU
IPC: G02B6/28
Filed: 1992-07-13
Granted: 2002-11-19
Abstract: The present invention relates to a housing (10) for an optical coupler (12).  The housing includes a primary protective body (14) having a receiving space therein wherein the coupled portion of the coupler is positioned. A support material (30) at least partially about the coupled portion (26) of the coupler (12) extends in the receiving space to the primary protective body. The sup-port material is resilient and has an index of refraction less than that of the coupled portion of the coupler.
Patent CA-2119612-C (CA)
Inventor: ARPH OLLE
IPC: A23L3/24
Filed: 1994-03-22
Granted: 1999-03-30
Abstract: A method of sterilizing a liquid milk based product comprises indirect preheating of the product and final heating to a sterilization temperature in the range of 140-150~C by direct steam injection. The product is cooled by flash-cooling in which steam corresponding to the added amount of steam is evaporated. The product is cooled by indirect cooling. In accordance with the present invention, the product prior to the flash-cooling is cooled from the sterilization temperature of 140-150~C to a temperature in the range of 90-120~C in a first indirect cooling step after which the product is cooled by flash-cooling to a temperature of 70-85~C. An apparatus forsterilization comprises a balance vessel connected to first indirectly working heat exchanger for heating of the milk based product. A steam injection nozzle is arranged in a pipe line leading out of the heat exchanger. After the steam injection nozzle there is a holding section and a vacuum vessel in which the product is cooled by flash-cooling. A further indirectly working heat exchanger for cooling of the product is connected between the holding section and the vacuum vessel.
Patent CA-2129401-C (CA)
Inventor: MCKAY ALBERT A
IPC: F16B35/04
Filed: 1994-08-03
Granted: 1998-06-16
Abstract: A fastener assembly for installing valve devices and the like on one side of a mounting plate by bolts were the bolt holes are without threads and the opposite side of the mounting face is inaccessible for holding a bolt head or nut from turning.  The fastener assembly includes at least one fastener plate and a minimum of two threaded bolts affixed thereto, so that the threaded portion of the bolts affixed thereto, so that the threaded portion of the bolts projects through bolt holes in the mounting plate.  The at least one fastener plate may be a split ring.  A retaining washer is threaded onto the projecting bolt threads to retain the fastener plate in place while the valve device is being installed onto the projecting bolt threads on which lock nuts are subsequently screwed to secure the installation.  Tightening of the lock nuts without consequent rotation of the fastener plate bolts is achieved by reason of the torque imparted to one bolt being transferred via the fastener plate to the other bolt thereof, which is constrained from moving in an arcuate path by the hole in which it is disposed to thereby prevent rotation of the one bolt as the nut is screwed down.
Patent CA-2129605-C (CA)
Inventor: TAKANO TSUNESUKE
IPC: H01R4/64
Filed: 1994-08-05
Granted: 1999-01-05
Abstract: A connector for mounting and grounding electrical components to an underlaying electrically-conductive support structure by a mounting screw includes an electrically-insulating mounting block which defines at least one mounting hole, and an electrically-conductive bus bar which is operatively associated with the mounting block.  The bus bar is bent to establish a first leg which is sandwiched between the electrically-insulating mounting block and the electrically-conductive support structure, and a second leg which defines a flat surface which is disposed within the mounting hole of the electrically-insulating mounting block.  At least one bent piece is attached to the second leg and bent so to bound at least an interior surface portion of the mounting hole defined in the electrically-insulating mounting block.  The first leg of the bus bar makes planar contact with the electrically-conductive support structure with the bus bar being positionally fixed in place by the second leg disposed within the mounting hole when the mounting screw is inserted and threaded thereinto.
Patent CA-2131280-C (CA)
Inventor: LAROIA RAJIV
IPC: G10L19/038
Filed: 1994-08-31
Granted: 1998-09-22
Abstract: An improved approximation of the desired codebook boundary is achieved, when quantizing data from a source with memory, by adding a dither sequence, the samples of which are contained within the Voronoi region of an unpartitioned lattice or the first level of lattice partitioning used to generate the trellis code. A sequence of data generated by the source with memory is quantized to a nearest sequence of a predetermined trellis code which is based on coset partitioning of a predetermined lattice into translates of a coset lattice. The trellis code sequence is then filtered with an inverse source filter. A dither sample is added to each sample of the sequence such that (1) a sum of the dither sample and the filtered trellis code sequence sample lies on a super-lattice of the coset lattice, and (2) the dither sample is inside the Voronoi region of the super-lattice.
Patent CA-2132692-C (CA)
Title: Open magnetic structures
Inventor: LOCATELLI MARCEL
IPC: G01R33/44
Filed: 1994-09-22
Granted: 2005-07-12
Abstract: The invention relates to an open magnetic structure for producing an intense, stable magnetic field, which is amplitude and direction-controlled in a region adjacent to said structure, having at least one magnetic source (4) for producing said magnetic field, characterized in that it also comprises at least one pole piece (5, 6) associated with the magnetic source and having a shape designed so as to control the magnetic field produced.      Application to petroleum or oil research in drilled wells and to surface magnetic imaging.
Patent CA-2137872-C (CA)
Inventor: VAN VLEET ROBERT D
IPC: B60D1/07
Filed: 1994-12-12
Granted: 1999-06-01
Abstract: A ball hitch connector apparatus adapted for use with a conventional ball hitch socket is provided.  The ball hitch connector has a lower support base with an upwardly extending stub shaft portion.  A bore extends inwardly from an outer surface of the stub shaft.  The connector also includes a generally spherical body with a bore extending upward from a bottom surface with the bore being adapted to receive the stub shaft portion of said support base.  The spherical body also has a transverse bore extending inward from an outer surface of the spherical body so as to be in communication with the vertical bore.  The transverse bore is positioned within the spherical body so that when the stub shaft portion is inserted into the vertical bore of the spherical body, the spherical body may rotated to angularly align the bore of the stub shaft portion and the transverse bore of the spherical body.    The connector also has a latch pin configured to be slidably received in the bore of the stub shaft portion and the transverse bore of the spherical body to retain the spherical body on the stub shaft portion when the stub shaft portion is positioned on the spherical body.  A retention ring is movably mounted in the spherical body and selectively engages the latch pin to prevent withdrawal of the latch pin from the spherical body.
Patent CA-2138603-C (CA)
Title: Memory for processing a program guide as for a satellite tv service
Inventor: CHANEY JOHN WILLIAM
IPC: H04N5/00
Filed: 1994-12-20
Granted: 2004-07-06
Abstract: In a packet audio/video signal transmission system, program guide information is formed as a master guide (250) and a special guide (260). The master guide contains programming information for the period of the current several hours. The special guide contains programming information for the next thirty days, for example. The master guide is sent as a service on each carrier or transponder (210-230, 240) to render it readily available regardless of the carrier frequency to which the receiver is tuned. The special guide (260) is transmitted on only one of the carriers (transponders) to minimize use of system bandwidth.
Patent CA-2144951-C (CA)
Title: Random coding cipher system and method
Inventor: VOBACH ARNOLD A
IPC: H04L9/18
Filed: 1993-09-29
Granted: 1999-01-05
Abstract: In a random coding cipher system and method, a sender and receiver pair share a long string of random digits, the masking tape. To encrypt a plaintext message, the sender generates a random integer (using a pseudo-random number generator, RNG) or a pseudo-random integer (using a pseudo-random number generator, PRNG). This is the initializing integer. The sender then selects an integer formed from a subset of the digits of the initializing integer. This is the starting integer for the message. The method of formation of the starting integer (choice of position of the digits and their ordering, etc.) from the digits of the initializing integer is shared by sender and receiver. The starting integer determines a starting, or indexing, position in the masking tape for extraction of a sequence of blocks of digits, of common length, to be put in one-to-one correspondence with the characters of the plain-text alphabet used for communication. The integer blocks comprise the numerical synonyms for the plaintext alphabet characters.
Patent CA-2147515-C (CA)
Inventor: ALMBLAD ROBERT E
IPC: B23C3/35
Filed: 1989-10-20
Granted: 1997-01-07
Abstract: First and second cutter head assemblies each include a key follower positioned at a first elevation and a spaced apart cutting wheel positioned at a second elevation. The key followers trace the bitted surfaces of a master key while the cutting wheels move with the key followers and duplicate bitted surfaces of the master key onto a key blank. A linear displacement bearing assembly is coupled to the first and second cutter heads to permit the key followers and cutting wheels to be laterally displaced with respect to the master key and key blank.          A key positioning cassette system holds and aligns the master key and key blank relative to the first and second cutter head assemblies.  Another linear displacement device is coupled to the base of the key cutting machine and to the cassette system for longitudinally displacing the key blank and the master key with respect to the longitudinally fixed key followers and cutting wheels. The various elements of the key cutting machine thus trace or follow the bitted surfaces of the master key and duplicate those bitted surfaces onto the bitted surfaces of the key blank.
Patent CA-2148613-C (CA)
Title: 2-perhalogenalkyl-substituted benzimidazoles, their preparation and their use as pesticides
Inventor: LUNKENHEIMER WINFRIED
IPC: C07D235/10
Filed: 1993-10-25
Granted: 2004-08-10
Abstract: The invention relates to new substituted benzimidazoles of the general formula (I)   in which R1 represents hydrogen, alkyl or optionally substituted aryl, R2 represents hydroxyl, cyano, alkoxy or optionally substituted amino, R3 represents perhalogenoalkyl, and X1, X2, X3 and X4, independently of one another, in each case represent hydrogen, halogen, nitro or optionally substituted aryloxy, but with at least one of the substituents X1, X2, X3 or X4 being different from hydrogen, with the exception of the compound 1-cyanomethyl-2-trifluoromethyl-5,6-dichlorbenzimidazole, to their preparation and to their use as agents for combating pests.
Patent CA-2152615-C (CA)
Title: Atovaquone pharmaceutical compositions
Inventor: DEARN ALAN ROY
IPC: A61K9/14
Filed: 1993-12-23
Granted: 2001-10-16
Abstract: The invention relates to microfluidised particles of atovaqnone and to a method of preparing them. More particularly, the invention is coned with a pharmaceutical composition containing microfluidised particles of atovaquone which has improved bioavailability and its use in therapy.
Patent CA-2154507-C (CA)
Title: Data processing system
Inventor: MCDAID PAUL FREDERICK
IPC: G06F9/44
Filed: 1995-07-24
Granted: 2001-02-06
Abstract: The present invention provides a data processing system, and method of operation, in which the system has a first message based environment and includes an encapsulation system to facilitate the operation of an application program written for a second message based environment, the application program being arranged to create objects which interact via messages. The encapsulation system comprises means for intercepting environment dependent messages sent to or from an object of the application program, and conversion means for receiving each intercepted message and converting that message into an equivalent message stream of the other message based environment. Further transmission means are provided for sending the message stream to its original destination. By such an approach the object is treated by the first environment as a standard object of that environment. By increasing the re-use of code, development costs are greatly improved, as are quality and maintainability, without a detrimental effect on performance.
Patent CA-2158143-C (CA)
Inventor: ARBEITER JAMES HENRY
IPC: H04N19/00
Filed: 1993-04-14
Granted: 2007-09-18
Abstract: A digital resampler comprises a combination of first means and second means.  The first means, which includes interpolation filter means, is responsive to the digital-signal sample values of an input sample stream for producing a first derived sample stream of digital--signal sample values in which the given sampling period P of the input stream is multiplied directly by a factor equal to M'/CL, where C  is a given positive integer and M' is smaller than CL, either 2n(M'/CL) or 2-n(M'/CL) is equal to M/L and the absolute value of n is at least equal to zero, so that the sampling period of the first derived sample stream is (M'/CL)P. The second means, which includes octave prefiltering and sample means, is responsive to the first derived sample stream of digital-signal sample values for producing as an output a second derived sample stream of digital-signal sample values in which the first derived sampling period (M'/CL)P of the first derived sample stream is multiplied by a factor equal to either 2n(M'/CL) or 2-n(M'/CL), so that the sampling period of the second derived sample stream is (M/L)P.
Patent CA-2167556-C (CA)
Inventor: PETTERSON TOR
IPC: A47K10/32
Filed: 1996-01-18
Granted: 2003-03-11
Abstract: A Sheet Dispenser for dispensing of flexible and foldable sheets, such as paper towels and the like from a center fed roll thereof. The Sheet Dispenser of the present invention relies upon a member, such as a plate, which may be in the form of or part of a housing for holding the roll of sheets. The plate member is provided with a lower circular dispensing aperture for receiving a leading strip of the sheets from the center fed roll such that a user may grasp and pull outwardly on the sheets in order to achieve a dispensing of the same. The invention relies upon an opening, such as an elongate slot formed in the plate member and in communication with the dispensing aperture and which allows a leading portion of the sheets to be inserted through the slot and into the dispensing aperture. This construction overcomes the previous problems of feeding a leading strip of the successive sheets in the dispensing aperture. In a preferred embodiment, the dispensing aperture, in combination with the opening, form an elongate dispensing aperture and the size of the elongate dispensing aperture is adjustable in order to accommodate different thicknesses, sizes and physical characteristics of differing sheet materials which can be dispensed.
Patent CA-2171284-C (CA)
Inventor: OSTHUES UWE
IPC: A01K1/12
Filed: 1994-07-22
Granted: 2004-02-03
Abstract: In order to control the speed of rotation of a carousel milking installation (1), one selects first the maximum carousel speed. The animals enter the carousel by the entrance (2) and the milking equipment is immediately put in place by the attendant. When the first animal arrives at the second checkpoint (6), a check is made, by means of a light barrier for instance, as to whether the milking equipment has been taken off or not. If it has not yet been taken off, the speed of the carousel is decreased in steps until, at subsequent milking stations (4), the milking equipment has been taken off before the checkpoint (6). When, however, the first checkpoint (5) reports that the milking equipment has already been taken off by then, the speed of the carousel is increased in steps until animals with milking equipment which has not yet been taken off are again reported at the second checkpoint (6). The speed is then reduced again in steps. The control procedure repeatedly alternates and enables the speed of the carousel to be adapted to differences in milking time between different animals.
Patent CA-2172047-C (CA)
Title: Procede et appareil pour le conditionnement de puits de forage declenche au fond du puits
Inventor: MORAN LARRY K
IPC: E21B43/11
Filed: 1993-10-07
Granted: 2001-01-02
Abstract: Un système de conditionnement de puits de forage comprend l'utilisation de dispositifs transportés par tubage pour établir une voie de communication fluidique entre une formation de fond (F) et la colonne de tubage (60). Des pistons extensibles (12) sont montés dans la paroi de la colonne de tubage (60) et sont étendus afin d'entrer en contact avec ladite formation (F) après que la colonne (60) a été installée. Des explosifs (58, 72, 74) placés dans les pistons sont déclenchés par l'intermédiaire d'un système de déclenchement separément transporté (84, 89, 91, 93) qui produit une onde de pression provoquant la détonation des explosifs (58, 72, 74) et établissant une communication fluidique entre la colonne (60) et la formation (F).