baber/WOPTO huggingface dataset:
Patent CA-2043167-C (CA)
Inventor: GUTSCHE GUNTER E
IPC: G09F13/14
Filed: 1991-05-23
Granted: 1995-06-06
Abstract: A method is provided whereby light rays from a glare-producing light source are concentrated on the signal portion of a display device to enhance its luminosity. Display devices are provide that use reflecting and refracting light concentrators and signal portions that might include transluscent light directing means or collimators. The invented display devices can find application in various fields where glare occurs.
Patent CA-2048075-C (CA)
Title: Magnetic recording and reproduction apparatus for data processing unit and magnetic tape for use in such apparatus
Inventor: ISHIKAWA TOSHIO
IPC: G11B5/09
Filed: 1991-07-29
Granted: 1996-02-20
Abstract: A magnetic recording and reproduction apparatus for a data processing unit is disclosed.  The apparatus includes a plurality of magnetic heads, formed integrally by a thin-film-forming technology, and a magnetic tape.   The magnetic tape has a plurality of recording tracks corresponding to a plurality of  independent data.   The recording tracks  are arranged in parallel to a moving direction of the magnetic tape, and share the same starting position.  The plurality of magnetic heads are arranged in parallel to a width direction of the magnetic tape so as to correspond to the recording tracks in a one-to-one correspondence, and are fixed at the starting position of the recording tracks.  The magnetic tape is moved in a direction in which the starting position is away from the magnetic heads for data recording onto the magnetic tape  and  for  data reproduction  from  the  magnetic  tape.          Further, the magnetic tape is controlled to automatically move in an opposite direction to the previous direction until the starting position reaches the position of the magnetic heads in response to the end of either data recording or data reproduction.   Thus, the starting position of the recording tracks corresponds exactly to the position of the magnetic heads for the start of data recording and for the start of data reproduction.
Patent CA-2049083-C (CA)
Inventor: ESSERMAN JAMES NEIL
IPC: H04N7/167
Filed: 1991-08-13
Granted: 2000-01-25
Abstract: A field upgradeable security system deciphers signals received from a communication network. An information processor (10) include, a receptacle for receiving a replaceable security element (12). The replaceable security element generates a working key (WK) necessary to the operation of the information processor. The working key is communicated to the information processor encrypted under a secret key (A(M)). The information processor decrypts the encrypted working key for use in deciphering a received communication signal. additional layers of encryption (A(C), U(M), U(C)) can be added to the communications between the information processor and security element to increase the level of security.
Patent CA-2052542-C (CA)
Title: Rubber additive
Inventor: COLLYER JOHN C
IPC: C08L23/28
Filed: 1991-09-30
Granted: 2003-02-25
Abstract: An additive for improving the ageing characteristics of rubber compositions is described. The additive comprises a liquid low-molecular weight ethylene-propylene-diene (EPDM) terpolymer and a suitable curing agent such as amine antioxidant/antiozonants. A  microcrystalline and a paraffin wax and a metal oxide may also be included.
Patent CA-2052811-C (CA)
Inventor: MASUDA KAZUAKI
IPC: H04L7/08
Filed: 1991-10-04
Granted: 1996-11-12
Abstract: In order to detect a plurality of framing bit sequences for establishing synchronization at a receiver in a digital communications system, first and second counters are rapidly reset in order to establish the synchronization as early as possible.  A comparator receives a bit stream transmitted and a desired bit sequence for use in detecting the framing bit, and compares the desired bit sequence with part of the bit stream and issues a coincidence signal in the event that the desired bit sequence coincides with the part of the bit stream.  The first counter is coupled to receive the coincidence signal, and allows an output indicating the establishment of the synchronization to issue in the event that it reaches a predetermined number of correct coincidence signals.  The second counter counts up the number of occurrences of the output of a clock counter, and resets itself and the first counter when reaching a predetermine number of occurrences of a pseudo-coincidence signal.
Patent CA-2056821-C (CA)
Title: Apparatus and technique for nmr diffusion measurement
Inventor: PALTIEL ZVI
IPC: G01V3/32
Filed: 1991-12-02
Granted: 1998-07-07
Abstract: A  method  for  conducting  borehole  NMR  measurements comprising the steps of: providing  a  magnetic  field  and  a  magnetic  field gradient at a desired location along a borehole; carrying  out  at  least  one  NMR experiment  in  the presence  of the magnetic field gradient; sensing  the diffusion effect on the decay of at  least the   first   echo;  and determining therefrom the diffusion coefficient.         Apparatus   for  carrying  out  the  method   is   also described.
Patent CA-2060550-C (CA)
Title: Magnetic recording apparatus
Inventor: ONO KOICHI
IPC: H04N9/83
Filed: 1992-02-03
Granted: 2001-04-10
Abstract: A video signal is recorded in successive tracks on a recording medium together with a pilot signal, the latter having a frequency that changes cyclically with a different one of at least four frequencies in successive tracks. A field detector detects sequential fields in the frames of the video signal, and rotation of the usual rotary transducers is servo-controlled in response to the detected sequence of fields and a pulse that is generated as the transducers rotate to represent the rotational phase of those transducers. A pilot signal generator generates the pilot signal with an initial frequency determined by an initial field in the detected field sequence, and with this frequency changing as a function of the detected sequential fields.
Patent CA-2061286-C (CA)
Title: Proximity detection and monitoring system
Inventor: GIROUX ANDRE
IPC: G01S17/86
Filed: 1992-02-17
Granted: 1994-12-13
Abstract: ABSTRACT OF THE DISCLOSURE    The proximity detection and monitoring system provides an image of an area in front of a vehicle to a driver, and warns him of an obstructing object within the front area. The system comprises a television camera to be mounted to a front portion of the vehicle for converting the image of the area into a video signal;  a monitor to be mounted inside the vehicle near the driver in his field of vision for displaying the image;  a proximity detector to be mounted to the front portion of the vehicle for detecting a presence of an object within the area and transmitting a proximity signal indicative of the presence;  an alarm responsive to the  proximity  signal,  for  producing  a  warning  alarm perceivable by the driver; and a controlling unit receiving an  activation  signal  and  the  proximity  signal  for controlling operation of the camera, the monitor and the proximity detector. The controlling unit includes a timer responsive to the activation signal for enabling the monitor to display the image and the alarm to produce the warning alarm for predetermined time durations respectively and for preventing the monitor from displaying the image and the alarm  from  producing  the  warning  alarm  during  a  non-surveillance mode of the system outside the predetermined time durations.   A surveillance mode of the system is initiated by the activation signal, during which the image is displayed on the monitor and the alarm is enabled for the predetermined durations, after which the system returns to the non-surveillance mode.
Patent CA-2066507-C (CA)
Title: Instant bingo game and game card therefor
Inventor: POLLARD GORDON
IPC: B41M3/00
Filed: 1992-04-21
Granted: 1994-05-10
Abstract: INSTANT BINGO GAME ABSTRACT OF THE DISCLOSURE A bingo card for playing at an instant bingo game comprises a first area in which bingo numbers are printed and covered by an opaque layer which can be scratched away to individually reveal each bingo number in turn. The card further includes four separate bingo playing areas each of which is in the form of a bingo card with the numbers printed thereon in conventional manner. On top of each of the second playing areas is applied a translucent coat of a scratchable material which is pigmented so as to modify the appearance of the underlying color of the area. The playing area can therefore be marked in relation to those numbers appearing on the first area simply by scratching away the translucent layer to provide a visual distinction. The game card is simple and effective and requires printing of the playing numbers only once as they can be viewed through the translucent layer.
Patent CA-2067330-C (CA)
Title: Herpes simplex virus type 1 mutant
Inventor: PRESTON CHRISTOPHER MAURICE
IPC: A61K48/00
Filed: 1990-08-14
Granted: 2005-05-10
Abstract: A herpes simplex virus type 1 (HSV-1) mutant capable of establishing latent infection in the absence of in vivo viral replication in neuronal cells and of expressing an inserted therapeutic gene, which comprising: (i) a DNA sequence change in the gene coding for Vmw65 protein, such as to substantially remove the transinducing properties whilst retaining its structural role and thereby preventing in vivo replication, the DNA sequence change being achieved by a transition or transversion alteration of 1 to 72 base pairs, an oligonucleotide insert of 3 to 72 base pairs, or a deletion of 3 to 72 base pairs, at a position between amino acids 289 and 412 of the protein; and (ii) a therapeutic gene inserted into a region of the HSV-1 genome which in non-essential for culture of the virus, and a promoter therefor able to express the therapeutic gene in neuronal cells in vivo. The preferred insertion site for the therapeutic gene (e.g.  tyrosine hydroxylase gene) is within the thymidine kinase gene of HSV in 1814.
Patent CA-2070789-C (CA)
Inventor: CAHILL CALVIN D
IPC: G21F9/30
Filed: 1991-10-25
Granted: 1997-12-30
Abstract: Présentation d'une méthode et d'un appareil (10) pour l'élimination des déchets au moyen de l'enfouissement hydraulique dans une formation souterraine. La méthode consiste à forer dans des formations géologiques stables à des milliers de pieds sous la surface, à fracturer ces formations, à pomper un mélange de déchets dangereux sous forme de solides, de liquides ou de boues ainsi qu'un fluide de transport choisi vers les formations fracturées, et à empêcher la migration des déchets. Bien qu'un fluide de transport convenable puisse être choisi en fonction d'un bon nombre de facteurs, celui qui sera retenu doit empêcher la migration des déchets en réagissant chimiquement à la chaleur ou à la pression ou bien les deux pour devenir fortement visqueux ou même solide. Cette méthode empêche la migration des déchets soit en pompant un fluide pour isoler la formation souterraine fracturée avant le pompage du mélange, soit en encapsulant les déchets avant de les mélanger au fluide de transport et de les injecter dans la formation fracturée. L'appareil (10) permettant d'utiliser la méthode est aussi décrit.
Patent CA-2074834-C (CA)
Title: Solid state laser diode light source
Inventor: RAVEN ANTHONY
IPC: A61B18/20
Filed: 1991-02-12
Granted: 2001-12-04
Abstract: A laser diode light source comprises at least two laser diodes (1, 2). The beams (3, 4) of the diodes (1, 2) are combined to-gether by, for example, a polarising beam combiner (11) and the combined beam (18) is focused by a lens (19) onto an optical cable (20). The beams (3, 4) are also acted on in the long direction of the laser stripes of the diodes (1, 2) by anamorphic beam shaping means (7, 8; 9, 10) to reduce the length of the image formed at the end of fibre (20) by a predetermined factor, chosen such that the numerical aperture of the focused beam (18) in said long direction does not substantially exceed that of the optical fibre (20).
Patent CA-2075483-C (CA)
Title: Shock absorbing outsole for footwear
Inventor: WHATLEY IAN H
IPC: A43B13/14
Filed: 1991-02-11
Granted: 1996-07-30
Abstract: An outsole (10) for an item of footwear. The outsole is provided with a lower surface (12) having a central portion (14) and a peripheral portion (16). Also provided are a plurality of resilient shock absorbing strike plates (20, 22) which extend from, and are disposed about, the peripheral portion (16) to define a central cavity (30) dis-posed below the central portion (14). Each strike plate has an inwardly sloped wall (26) adjacent the central concavity. This sloped wall (26) is disposed at an obtuse angle to the central portion (14). Also provided is an elastic membrane (32) connecting a plurality of the strike plates (20, 22) and extending through the central concavity (30). The membrane (32) has a stiffness less than of one of the strike plates (20, 22) to which it is connected.
Patent CA-2075597-C (CA)
Title: Method of printing on natural fiber fabrics
Inventor: KERLE THOMAS
IPC: D06M101/02
Filed: 1992-08-07
Granted: 2002-04-30
Abstract: The invention relates to a method for printing on woven fabrics of natural fibers or of woven fabrics with a predominantly natural fiber component of cotton, wool, silk, linen, and the like, by means of a transfer printing method, with the woven fabrics being materials, the surfaces of which do not demonstrate sufficient inherent affinity for the dyes to be transferred from the transfer paper to the substrate, where the woven fabric surface to be printed on is first pretreated in such a manner that transparent varnish is applied to these surfaces, where the varnish is a varnish which is at least free of natural resins, which, after it dries, can absorb and fix the sublimable dye or dyes of the transfer paper during a subsequent transfer printing process.
Patent CA-2077336-C (CA)
Inventor: ZIMMEL JOHN M
IPC: C08G18/42
Filed: 1991-03-29
Granted: 1997-08-19
Abstract: Hot melt adhesive compositions combining the characteristics of thermoplastic hot melt adhesives and reactive adhesives can be prepared by blending a polyester polyether thermoplastic elastomer having formula (I) wherein Nu is a predominately cyclic nucleus and R1 is randomly selected from either a C2-6 alkylene or an amorphous polyether subunit comprising a polyoxyalkylene group with a polyisocyanate prepolymer.  The resulting composition is flexible and may be used as an adhesive or as a sealant.
Patent CA-2079304-C (CA)
Title: Fiber optic lighting device
Inventor: CHURCHILL DAVID L
IPC: F21V8/00
Filed: 1992-09-28
Granted: 1996-02-06
Abstract: A fiber optic lighting device for providing a light source against and into one end of a fiber optic bundle for use. The device includes a long-life arc lamp which is operably connected within a tubular heat sink. At least one rigid transparent elongated, preferably cylindrical member having ground and polished ends is connected within a mating opening in the heat sink facing the arc lamp, light emitting from the arc lamp passing through the transparent member. The inner polished end of the transparent member includes a dielectric layer appliedthereto which is selected to filter and reflect back into the heat sink at leastsome of the infrared components of the light emitting from the arc lamp. Most, if not all, of the ultraviolet component is filtered out by the transparent member. The light emitting from the outer end of the transparent member is thus absent both ultraviolet and infrared components for further transmission through the fiber optic bundle. An opaque enclosure, a fan for enhanced heat dissipation and additional light-containing and modifying elements are also provided.
Patent CA-2081018-C (CA)
Title: Countercurrent liquid/liquid extraction to fractionate complex mixtures containing medium and long chain fatty acid triglycerides
Inventor: MORRISON LOWEN R JR
IPC: C11B3/00
Filed: 1991-04-22
Granted: 1998-09-15
Abstract: Countercurrent liquid/liquid extraction processes for fractionating complex triglyceride mixtures to selectively remove "light" impurities (primarily MMM triglycerides) from MML/MLM triglycerides, or to selectively remove MML/MLM triglycerides from "heavy" impurities (primarily MLL/LML and LLL triglycerides), wherein M is a C6-C10 fatty acid residue or mixture thereof, and wherein L is a C18-C24 fatty acid residue or mixture thereof, are disclosed. In the case of "light" impurities, an oil stream containing MMM and MML/MLM triglycerides is passed countercurrently to a solvent stream containing a polar solvent or a supercritical fluid that is partially miscible with the oil stream to selectively remove the MMM triglycerides. In the case of "heavy" impurities, an oil stream containing MML/MLM, MLL/LML and LLL triglycerides is passed countercurrently to the solvent stream to selectively remove the MML/MLM triglycerides.
Patent CA-2085059-C (CA)
Title: Carpet sanitizing shampoo
Inventor: MINNS CHARLES R
IPC: C11D3/39
Filed: 1992-12-10
Granted: 2000-02-08
Abstract: An aqueous composition cleans and sanitizes carpets and the like. The composition contains (in percents by weight) from about 3 to about 15 percent peroxide, up to about 5% of volatile ammoniated substance, up to about 30% volatile wetting agent, and the balance water. The solution is substantially completely volatile so that it does not leave a soil harboring residue.
Patent CA-2087182-C (CA)
Inventor: RYER JACK
IPC: C10M135/24
Filed: 1991-07-30
Granted: 1999-05-04
Abstract: Additif contenant du phosphore et du soufre ainsi que son emploi afin de conférer des propriétés anti-usure et/ou anti-oxydante à des compositions oléagineuses telles que des carburants et des huiles lubrifiantes, notamment compositions pour boîte de vitesse telles que des fluides pour boîte de vitesse automatique. L'additif comprend un mélange de produits formé par réaction simultanée de (1) un bêta-hydroxy thioéther tel que thiobiséthanol, et (2) un réactif contenant du phosphore tel que le phosphite tributylique. On fait intervenir la réaction dans des conditions de pression réduite (par exemple, -40 KPa à -100 KPa) afin de limiter la quantité d'espèces de thioéther dans ledit additif à moins d'environ 45 mol %.
Patent CA-2087752-C (CA)
Title: Thermal-magnetic trip unit with low current response
Inventor: PANNENBORG ERICH JOHN
IPC: H01H71/40
Filed: 1993-01-21
Granted: 2005-07-05
Abstract: A molded case thermal-magnetic circuit breaker having improved low current magnetic trip response pivotally arranges the magnet within the circuit breaker thermal-magnetic trip system for controllably moving toward the latching armature assembly. The movement of the magnet decreases the magnetic separation distance between the magnet and the latching armature to optimize the magnetic trip forces and thereby enhance low current magnetic trip response.
Patent CA-2088781-C (CA)
Inventor: NAPPA MARIO JOSEPH
IPC: C01G1/06
Filed: 1991-08-09
Granted: 2001-07-03
Abstract: A method of producing an anhydrous niobium or tantalum pentafluoride involving reacting the corresponding pentoxide or oxyhalide with an excess of anhydrous hydrogen fluoride in the presence of a sufficient dehydrating agent (e.g,, COCI2, SOC12 or SO~C12) to react with any water formed. Such a process is useful to produce a catalytically active anhydrous niobium or tantalum pentafluoride in essentially a single liquid phase reaction step.
Patent CA-2097239-C (CA)
Inventor: KAASINEN PENTTI JUHANI
IPC: F27D99/00
Filed: 1993-05-28
Granted: 1998-07-07
Abstract: The  present  invention  relates  to  a  method  for oxidizing the pulverous fuel of a furnace, advantageously a flash smelting furnace, by means of a burner.  The oxidation takes place mainly owing to an effective mixing of two different combustion gases, pulverous fuel and an optional supplementary fuel in the furnace.  The combustion gases are conducted into the furnace in separate flows, so that oxygen is fed in through the center in an at least partly turbulent flow,  and air is fed around the oxygen flow in several separate flows.  The invention also relates to a burner for mixing and burning pulverous fuel and combustion gas in the furnace.
Patent CA-2097900-C (CA)
Inventor: KAWABE HIDETAKA
IPC: C21D8/04
Filed: 1993-06-07
Granted: 1997-09-16
Abstract: In a method of producing a high-strength cold-rolled steel sheet excelling in deep drawability, a steel material is used which consists of:   a basic composition including 0.01% or less of C, 0.1 to 2.0% of Si, 0.5 to 3.0% of Mn, 0.02 to 0.2% of P, 0.05% or less of S, 0.03 to 0.2% of Al, 0.01% or less of N, 0.001 to 0.2% of Nb, and 0.0001 to 0.008% of B in such a way that the respective contents of C, Nb, Al, N, Si, Mn and P satisfy the following formulae:  5 ~ Nb/C ~ 30, 10 ~ Al/N ~ 80, and 16 ~ (3 x Si/28 + 200 x P/31)/(Mn/55) ~ 40; Fe remnant; and inevitable impurities, the method including the steps of:      performing rolling on the steel material with a total reduction of 50% or more and 95% or less while effecting lubrication thereon in a temperature range of not higher than the Ar3 transformation temperature and not lower than 500°C;      performing a hot-rolled sheet recrystallization treatment on the steel material by a coiling or annealing process;      performing cold rolling on the steel material with a reduction of 50 to 95%; and then effecting  recrystallization  annealing  on  the  steel material in a temperature range of 700 to 950°C.
Patent CA-2101069-C (CA)
Title: Heat transfer device
Inventor: SALT HARRY
IPC: A62B17/00
Filed: 1992-01-31
Granted: 2004-03-02
Abstract: A heat transfer device (20) which comprises a collapsible envelope (2) including a liquid transfer (7) which, in use, is in an expanded form and includes a liquid (8) that evaporates from one wall (6) of the envelope and condenses on another wail (5), the condensed liquid being returned via the liquid transfer means (7) to the wall (6) at which evaporation took place.
Patent CA-2107204-C (CA)
Inventor: DORNAN R JAMES
IPC: B29C73/24
Filed: 1993-09-28
Granted: 1996-06-18
Abstract: An improved tire section repair unit for the repair of a damaged section of a tire. The repair unit includes two curved side walls pivotable connected to the base of the unit. A locking arm is provided that securely encloses the entire system of curved walls, base and internal air bag and heat pad arrangement situated about the tire under repair. The pivotable side wall design permits the repair of tires of varying sizes. A locking arm arrangement permits the use of lightweight side walls to enclose the system. As a result, the repair unit of the present invention is more transportable and less cumbersome to use.
Patent CA-2107424-C (CA)
Title: Apparatus for making a transformer core comprising strips of amorphous steel wrapped around the core window
Inventor: KLAPPERT WILLI
IPC: H01F27/24
Filed: 1993-09-30
Granted: 2004-11-30
Abstract: This wrapping apparatus comprises a belt nester for wrapping stacks of thin amorphous steel strips about ar arbor. The belt nester includes (a) a belt wrapped about the arbor and movable along its length to impart rotary motion to the arbor and (b) means for successively feeding individual ones of the stacks into the space between the belt and the arbor. The wrapping apparatus further comprises means defining a first substantially-flat surface upon which the stacks are supported as they are fed into the space between the belt and the arbor and additional means defining a second substantially-flat surface extending parallel to the first flat surface. Control means operates when a stack that is being wrapped on the arbor passes between said flat surfaces to bias one of the flat surfaces toward the other and to compress the stack between the two flat surfaces as the stack is wrapped.      This compression removes wrinkles from the strips, removes air pockets from between the strips, and enables the stack to be more effectively guided by guide members at the longitudinal edges of the stack.