baber/WOPTO huggingface dataset:
Patent CA-2027766-C (CA)
Title: Multi-frequency signal receiver and a method of detecting the multi-frequency signal
Inventor: CHUJO KAORU
IPC: H04Q1/453
Filed: 1990-10-16
Granted: 1994-12-13
Abstract: A multi-frequency signal receiver, and in particular a push-button signal receiver, is provided having a detector circuit and an amplitude variation supervisory circuit.  The detector circuit has a group of band pass filters, each having a pass band corresponding to each elemental signal in the multi-frequency signal.  The detector circuit also has a logic circuit for receiving each output from the band pass filters and outputting detected data of the multi-frequency signal.  The amplitude variation supervisory circuit monitors the amplitude of an input signal for a predetermined duration and detects and holds the maximum value of the monitored amplitude.  Then, the amplitude variation supervisory circuit detects when the amplitude of the input signal exceeds the maximum amplitude value to determine if the input signal is not the multi-frequency signal.
Patent CA-2030472-C (CA)
Inventor: PLATZEK JOHANNES
IPC: A61B5/055
Filed: 1990-11-21
Granted: 2003-06-10
Abstract: Cascade polymers, containing complex-forming ligands, optionally at least five ions of an element of atomic numbers 21-29, 39, 42, 44 or 57-83, as well as, if desired, cations of inorganic and/or organic bases, amino acids or amino acid amides, are valuable complexing compounds and complexes for diagnostics and therapy.
Patent CA-2032355-C (CA)
Title: Process for the preparation of alkyl imidazolidone (meth)acrylate
Inventor: GROSIUS PAUL
IPC: B01J31/12
Filed: 1990-12-14
Granted: 1999-07-27
Abstract: A compound (I) is prepared by reacting at least one (meth)acrylate (II) with a heterocyclic alcohol (III) in the presence of at least one catalyst chosen from tin dialkyloxides and/or tin dialkyldialkoxides. 
<??>Alkylimidazolidone acrylates and methacrylates are known for the part they play in the constitution of polymers which are useful as coatings and adhesives and for paper and textile treatment, as well as for their use as leather treatment agents and in the production of emulsion paints. 
<IMAGE>
 R1 = H, CH3; A,B = alkylene group with a straight or branched chain containing from 2 to 5 carbon atoms.
Patent CA-2049735-C (CA)
Title: Portable radio equipment
Inventor: FURUNO KENICHI
IPC: H04W52/00
Filed: 1991-08-22
Granted: 1995-06-20
Abstract: In a portable radio equipment, a first power unit (11) and a second power unit (15) can be selectively mounted to or removed from a radio equipment main unit (1).  The main unit contains a transmit audio circuit (3), a first microphone (4), and a power circuit (5).  When the first power unit is mounted to the main unit, a short-circuiting member (12) in it connects the first microphone to the transmit audio circuit, and a power source (8A) in it provides power to the power circuit.  When the second power unit (15) is mounted to the main unit (1), a second microphone (16) in it is connected to the transmit audio circuit to the main unit, and a power source (8B) provides power to the power circuit.
Patent CA-2050955-C (CA)
Title: Method and apparatus for removing grit from sewage
Inventor: SMITH BRYAN
IPC: B03B5/28
Filed: 1991-09-09
Granted: 1999-08-24
Abstract: An improved method and apparatus for removing grit from sewage comprising passing sewage containing grit along a channel 33, the sewage passing initially through a straight elongate portion 37 of constant width 35 and of length 39 sufficient to stabilise the flow and subsequently passing the sewage around a bend portion 41 having an angle of at least 10 degrees from the straight portion 37 and, downstream of the bend 41, removing the grit from the flow via a port 51 situated at the inside of the bend 41 at the base of the channel via a grit hopper 67 coupled to the port and coupled to a draw-off point 71 to remove the grit for disposal.
Patent CA-2053890-C (CA)
Title: Time domain radio transmission system
Inventor: FULLERTON LARRY W
IPC: H04B1/69
Filed: 1990-03-02
Granted: 1995-04-18
Abstract: The figure shows a transmitter (10), where an oscillator (12) generates a base frequency of 100 kHz to be fed into a divide-by-four unit (14). The divide-by-four unit (14) produces a 25 kHz output signal to be fed into the regulated power supply (16). The output of the regulated power supply (16) is fed into the output stage (18) of transmitter (10) for transmission. The impulse antenna (200) creates a monocycle. This system recovers signals otherwise obscured by noise.
Patent CA-2054047-C (CA)
Title: Microwave shielding device for a door of a microwave oven
Inventor: LEE KI IN
IPC: F24C7/02
Filed: 1991-10-23
Granted: 1998-05-26
Abstract: A microwave shielding device for a door of a microwave oven comprising a door frame (11) with a seal plate unified therewith, a bend portion (12) formed at one side  of  the  door  frame  and  having  a  contact  surface (12a) and  a noncontact surface (12b), and a choke seal (17) provided at one side  of  the bend portion by a vertically bent portion (13) and  a  flange  portion  (14), whereby an increased effect  of  preventing  leakage  of  microwaves  and  an enhanced workabvility in manufacture of the door are provided.
Patent CA-2056655-C (CA)
Title: Image processing apparatus
Inventor: OHTA EIJI
IPC: H04N1/00
Filed: 1991-11-29
Granted: 1996-10-22
Abstract: Disclosed is an image processing apparatus having plural types of input devices (scanners, a still-video camera, a film scanner, etc.) for inputting image data.          The type of input device which has entered the image data is identified, and an image judging processing method is decided from plural types of such methods based upon the type of input device identified.  In accordance with the image judging processing method decided, the identity is judged between the image data inputted from the input device of the type identified and a specific image.
Patent CA-2057907-C (CA)
Title: Plastic closure with improved seal
Inventor: ZUMBUHL BRUNO
IPC: B65D41/34
Filed: 1990-05-09
Granted: 1993-04-27
Abstract: A plastic closure (10) for a container, such as a bottle (30) having an externally threaded neck, has a top wall (12), an internally threaded sidewall (14), and a seal (22) comprising outer and inner concentric sealing members (24, 26) that extend downwardly from an inner surface of the top wall. The outer sealing member extends downwardly farther than the inner sealing member and is substantially thicker than the inner sealing member. The outer sealing member is disposed to engage an outer corner of the rim of the neck of the bottle when the closure is threaded onto the bottle, and the inner sealing member is disposed to engage the top of the rim after engagement of the corner with the outer sealing member. The outer sealing member deflects outward slightly, and the inner sealing member deflects upwardly and inwardly. Movement of the top wall of the closure toward the rim is limited by a shoulder between the sealing members, so that when the closure is fully threaded onto the bottle, the inner sealing member is spaced from the inner surface of the top wall of the closure.
Patent CA-2062965-C (CA)
Title: Method and apparatus for compression and decompression of digital data
Inventor: BARNSLEY MICHAEL F
IPC: H04N7/30
Filed: 1990-05-17
Granted: 2000-08-08
Abstract: Digital image data is automatically processed by dividing stored image data into domain blocks and range blocks. The range blocks are subjected to processes such as a shrinking process to obtain a mapped range blocks. Then, for each domain block, the mapped range block which is most similar to the domain block is determined, and the address of that range block and the processes the block was subjected to are combined as an identifier which is appended to a list of identifiers for other domain blocks. The list of identifiers for all domain blocks is called a fractal transform and constitutes a compressed representation of the input image. To decompress the fractal transform and recover the input image, an arbitrary input image is formed into range blocks and the range blocks processed in a manner specified by the identifiers to form a representation of the original input image.
Patent CA-2069033-C (CA)
Title: Programmable remote control
Inventor: HESSE DAVID
IPC: H04B10/10
Filed: 1992-05-21
Granted: 2002-11-12
Abstract: An electronic control device for controlling timed functions of an appliance has a processor for controlling its operation, an input for entering command and time of command information for a function to be preformed, a memory for storing information entered at the input, a real time clock, a comparator for comparing time on the real time clock with the time of command information in the memory, and actuator for effecting a command signal to be communicated to the appliance when the time of command information for a particular command matches the time on the real time clock and a feedback pick-up which is sensitive to output from the appliance. The feedback pick-up receives both on and off and level of output information from the appliance indicative of whether a command signal from the control device has been successfully communicated. In the event of failed command signal the control device is responsive to the feedback pick-up to re-enter commands when there is a failed command signal indicated by the feedback pick-up.
Patent CA-2070483-C (CA)
Title: Food product and a process for its production
Inventor: BADERTSCHER ERNEST
IPC: A23P30/40
Filed: 1992-06-05
Granted: 1998-10-20
Abstract: An aerated food product containing a fat and a refined mixture and a process for its production by refining and aeration.
Patent CA-2078076-C (CA)
Inventor: WATANABE SHIGEKI
IPC: H04B10/54
Filed: 1992-09-11
Granted: 1998-07-28
Abstract: An optical communication system in which light is modulated in sending equipment according to a composed signal obtained by mixing a signal frequency-multiplexed at the microwave level in a coherent SCM optical communication system with an unmodulated signal out of the frequency band of the frequency-multiplexed signal. The resultant modulated light is optical-heterodyne-detected. A demodulating unit demodulates a frequency-multiplexed signal according to an electric signal delayed by a delay unit by the time equal to the time delay in an unmodulated component extracting unit.          Only the frequency components of a frequency-multiplexed signal and an unmodulated signal must be received in receiving equipment, without receiving the component in a broad frequency band from the frequency component to the main carrier component of the frequency-multiplexed signal.
Patent CA-2078090-C (CA)
Title: Method and apparatus for transmitting information between equipment at the bottom of a drilling or production operation and the surface
Inventor: SOULIER LOUIS
IPC: E21B47/12
Filed: 1992-09-11
Granted: 1999-02-02
Abstract: Information can be transmitted between equipment at the bottom of a drilling operation and the surface.  A transceiver is provided at the surface, and is connected to both the earth, or the bottom of the ocean in an offshore operation, spaced from the drilling operation, and metal pipework used in the drilling operation.  A transmitter receiver is used for applying and receiving electric signals between two points on the metal pipework.  The two points are separated at a substantial distance along the metal pipework such that the resistance of the metal pipework connecting the two points is relatively low but greater than zero.  No insulating junction is then needed to be interposed between the two points in the metal pipework connecting the two points.  Preferably, the transmitter has upper and lower conductors with first and second polar ends at the two points, thus forming a dipole of substantial length across the metal pipework.
Patent CA-2079706-C (CA)
Title: Inhibitor of atherosclerotic intimal thickening
Inventor: SAITO YASUSHI
IPC: A61K31/44
Filed: 1992-10-02
Granted: 2004-03-30
Abstract: An inhibitor of atherosclerotic intimal thickening, which contains an effective amount of a compound of the formula (I): (see formula I) wherein ring X is phenyl, substituted phenyl or 5- or 6-membered heterocyclic aryl; each of R1 and R2 which are independent of each other, is hydrogen, C1-8 alkyl, C3-7 cycloalkyl, C1-3 alkoxy, n-butoxy, i-butoxy, sec-butoxy, tert-butoxy, R20R21N- (wherein each of R20 and R21 which are independent of each other, is hydrogen or C1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, phenyl, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-tert-butylsilyloxy, hydroxymethyl or -O(CH2)~OR22 (wherein R22 is hydrogen or C1-3 alkyl, and ~ is 1, 2, or 3); or R1 and R2 together form -CH=CH-CH=CH- or methylenedioxy, when they are at the o-position to each other;      R3 is hydrogen, C1-8 alkyl; C2-6 alkenyl, C3-7 cycloalkyl, C5-7 cycloalkenyl or (see formula II) (wherein R7 is hydrogen, C1-8 alkyl, C1-8 alkoxy, C1-3 alkylthio, chloro, bromo, fluoro, chloromethyl, trichloromethyl, trifluoromethyl, trifluoromethoxy, trichloromethoxy, difluoromethoxy, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-tert-butylsilyloxy or hydroxymethyl); or C1-3 alkyl substituted by one (see formula III) (wherein R7 is as defined above) and zero, one or two C1-3 alkyl;      Y is -CH2-, -CH2CH2-, -CH=CH-, -CH2-CH=CH-, -CH=CH-CH2-, -C(CH3)=CH- or -CH=C(CH3)-;      Z is -Q-CH2-W-CH2-CO2R12, (see formula IV), (see formula V) or (see formula VI) (wherein Q is -C(O)-, -C(OR13)2- or -CH(OH)-, W is -C(O), -C(OR13)2- or -C(R11)(OH)-, R11 is hydrogen or C1-3 alkyl, R12 is hydrogen, R4 (wherein R14 is alkyl of a chemically or physiologically hydrolyzable alkyl ester moiety, NHR23R24R25 (wherein each Of R23, R24 and R25 is hydrogen or C1-4 alkyl), sodium, potassium or 1/2 calcium), each R13 is independently primary or secondary C1-6 alkyl, or two R13 together form -(CH2)2- or -(CH2)3-, and each of R15 and R16 which are independent of each other, is hydrogen atom or C1-3 alkyl, or R15 and R16 together form -(CH2)2- or -(CH2)3-.
Patent CA-2080418-C (CA)
Inventor: WILLIAMSON GLEN P
IPC: H01J61/24
Filed: 1992-10-13
Granted: 2002-02-12
Abstract: A metal halide arc discharge lamp includes a sealed lamp envelope, an arc tube located within the lamp envelope, a generally cylindrical, light-transmissive shroud positioned around the arc tube, a frame comprising a single support rod extending between dome and neck regions of the lamp envelope, upper and lower clips for attaching the arc tube and the shroud to the frame, a resilient bulb spacer attached to a neck end of the frame and bearing against an inside surface of the lamp envelope for positioning the frame relative to the lamp envelope, and electrical leads for coupling electrical energy to the arc tube. The frame is mechanically supported within the lamp envelope in the neck region solely by the bulb spacer. Leakage currents between the frame and the electrical leads through the lamp stem are effectively eliminated.
Patent CA-2082581-C (CA)
Inventor: LETERSKY CAROLYN
IPC: A47B47/00
Filed: 1992-11-10
Granted: 2000-05-23
Abstract: A method of placing a shelf in a storage compartment, consisting of the following described steps. Firstly, select a pair of shelf members having opposed ends. The distance between the opposed ends is substantially equal to the distance between interior sidewalls of the storage compartment.      Secondly, select a pair of support members having opposed ends The distance between the opposed ends corresponds to a desired shelf height. Thirdly, pivotally connect adjacent opposed ends of the shelf members and the support members to form a parallelogram frame. Fourthly, collapse the parallelogram frame to permit insertion into the storage compartment.      Fifthly, bring the support members into engagement with the interior sidewalks of the storage compartment thereby orienting the shelf members perpendicular to the support members, with the interior sidewalls of the storage compartment providing lateral support.
Patent CA-2083860-C (CA)
Inventor: NEGI TAICHI
IPC: C08J5/18
Filed: 1992-11-26
Granted: 1995-09-05
Abstract: A heat shrinkable film or multilayered film comprising at least one layer comprising an EVOH (A) having an average ethylene content of 20 to 60 mol% and an areal shrinkage when immersed in hot water at 90°C for 1 minute of at least 10%  and  having  thermal  characteristics  satisfying  the following condition (i) 1 ? ¦{T(1) - T(2)} - (t(1) - t (2)}¦ ? 20     (i) wherein 1 ? ¦t(1)  - T(1)¦ ? 20  in the case of T(1)  = T(2) and t(1) = t (2)  and wherein T(1) and T(2)  represent peak temperature (°C) on the highest  temperature side  and  lowest  temperature  side respectively  in  differential  scanning  calorimetry  (DSC) measurement of said EVOH (A) and t(1) and t(2) peak tempera-tures originating from T(1)  and T(2),  respectively, in DSC measurement  of  said  EVOH  having  been  treated  with  an alkaline solvent.
Patent CA-2084302-C (CA)
Inventor: AOKI TOMOYUKI
IPC: C11D10/02
Filed: 1991-06-14
Granted: 2001-05-15
Abstract: The stability of an acidic liquid cleaner for aluminum comprising mineral acid, oxidant, polyvalent metal ions, and surfactant is substantially improved by the presence in the cleaner of from 0.05 to 5 g /l of a component selected from the group of glycols containing from 2 to 10 carbon atoms per molecule and mixtures of such glycols. The effectiveness of the cleaner for primary cleaning and desmutting of aluminum and its alloys is not impaired and may even be improved by the addition of the glycol component.
Patent CA-2085061-C (CA)
Inventor: DESMARAIS CLAUDE
IPC: B42D1/08
Filed: 1992-12-10
Granted: 2000-02-01
Abstract: L'invention concerne un album du type comprenant une couverture ayant des faces avant et arrière de même dimensions séparées par une tranche plane sur laquelle sont fixées une pluralité de pages ou de feuilles. Cet album est caractérisé en ce qu'il comprend également deux petits blocs rigides de forme allongée ayant chacun une longueur sensiblement égale à la largeur de la tranche, et chacun une extrémité plane et parallèle. Ces blocs sont respectivement fixés à même la tranche près des arêtes supérieure et inférieure de celle-ci du côté des faces avant et arrière de la couverture en haut et en bas de feuilles ou pages, de façon à s'étendre transversalement entre lesdites faces avant et arrière et ainsi renforcer la couverture sans pour autant interférer et gêner la pleine ouverture des feuilles ou pages. Ces deux petits blocs font de préférence partie intégrante d'une pièce rectangulaire mince et allongée de même forme et dimension que la tranche, qui peut être collée à même la tranche et sur laquelle les feuilles ou pages peuvent être fixées par soudure lorsque ladite tranche et les feuilles ou pages sont faites en matière plastique. Grâce à ces blocs, la couverture ne peut se déformer ou s'aplatir autour des lignes de pliure qui relient sa tranche à ses deux faces, même si les pages ou feuilles protégées par la couverture ne sont pas suffisamment nombreuses ou épaisses pour donner du corps à l'album.
Patent CA-2086971-C (CA)
Inventor: SAUL JONATHAN R
IPC: A47C1/0355
Filed: 1993-01-08
Granted: 2002-04-02
Abstract: A modular reclining/tilt chair and method for assembling it are disclosed. The modular reclining/tilt chair includes a simplified actuation mechanism which significantly reduces system complexity and weight while providing improved comfort to the seat occupant. The construction is such that the pre-assembled actuation mechanism is integrally suspended from and interdependent with box-like modular frame components. In this manner, the frame components can be upholstered prior to final assembly with the actuation mechanism.
Patent CA-2090238-C (CA)
Title: Polyhydroxy fatty acid amides in polycarboxylate-built detergent
Inventor: HONSA SANDRA L
IPC: A61K8/42
Filed: 1991-09-25
Granted: 1998-09-01
Abstract: Disclosed are detergent compositions containing polycarboxylate builders and one or more anionic, nonionic, or cationic detersive surfactants, or mixtures thereof, improved by the inclusion of certain polyhydroxy fatty acid amide surfactants. The compositions comprise at least 1 % by weight polycarboxylate builder, and at lea st 1 % by weight of a polyhydroxy fatty acid amide of formula (I) wherein R1 is H, C1-C4 hydrocarbyl, 2-hydroxy ethyl, 2-hydr oxy-propyl, or a mixture thereof; and R2 is a C5-C31 hydrocarbyl; and Z is a polyhydroxyhydrocarbyl having a linear hydrocar byl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof.
Patent CA-2090565-C (CA)
Inventor: JARRETT PETER K
IPC: A61L17/14
Filed: 1993-02-26
Granted: 2005-11-29
Abstract: This invention relates to materials for medical or veterinary use that possess considerably improved properties with regard to friction. The invention also relates to the production of such materials from existing materials that possess suitable bulk properties, but inappropriate frictional properties.       This invention also relates to a hydrophilic coating material that provides improved frictional properties.
Patent CA-2091314-C (CA)
Title: Guide apparatus
Inventor: PUMMELL LESLIE JAMES HORACE
IPC: A43B7/06
Filed: 1993-03-09
Granted: 1998-09-08
Abstract: It is well-known to use grooves to guide photographic material through processing apparatus. However, there is a tendency for debris to accumulate in the bottom of the grooves.  Furthermore, the machining operation needed to form such grooves is complicated in particular where bends and changes in direction are required.  Described herein is a guiding arrangement in which pairs of parallel plates (20, 22, 24, 26) are used to define a gap (30) through which material (40) is transported.  The arrangement comprises an upper plate pair (20, 22) which is arranged to be offset with respect to a lower plate pair (24, 26), the plates in each pair being parallel to one another.
Patent CA-2092190-C (CA)
Inventor: MURCH BRUCE PRENTISS
IPC: C11D1/86
Filed: 1991-09-25
Granted: 1997-08-19
Abstract: n divulgue une composition de détergent pour grosse lessive comprenant un ou plusieurs surfactants détersifs anioniques, non ioniques ou cationiques, ou des mélanges de ceux-ci, des adjuvants détersifs facultatifs et des adjuvants auxiliaires facultatifs, dont la composition contient au moins environ 1 % en poids d'un adjuvant de type zéolite ou silicate stratifié, ou un mélange de ceux-ci, et au moins environ 1 % en poids d'un composé d'acide gras polyhydroxylique de formule (I), où : R1 est un H ou un groupe hydrocarbyle en C1-C4, 2-hydroxyéthyle, 2-hydroxypropyle, ou un mélange de ceux-ci;
Patent CA-2093545-C (CA)
Inventor: COUSIN LAURENT
IPC: C08K9/02
Filed: 1993-04-06
Granted: 2001-03-27
Abstract: The present invention relates to a novel composite product which is composed of a fibrocrystalline heterogeneous structure consisting of: ~ on the one hand a plurality of fibers of expanded specific surface area and of hydrophilic character, having a substantial quantity of microfibrils on their surface, and ~ on the other hand crystals of precipitated calcium carbonate (PCC), organised essentially in clusters of granules, the majority of which trap the micro-fibrils and are joined directly thereto by mechanical bonding. - Application to the field of construction materials and papermaking.