baber/WOPTO huggingface dataset:
Patent NO-173313-C (NO)
Inventor: KRAEMER ROLF-JUERGEN
IPC: A47L9/26
Filed: 1989-01-20
Abstract: The cable drum for vacuum cleaners has a so-called centrifugal brake. The cable drum has a side wall which is detached from the rest of the cable drum and is connected only via a freewheel. Said side wall also bears the centrifugal brake weights. The remaining part of the cable drum is connected to a rewindable restoring spring. <IMAGE>
Patent NO-174722-C (NO)
Inventor: SALKINOJA-SALONEN MIRJA
IPC: D21C9/12
Filed: 1990-09-07
Abstract: The present invention concerns a procedure for bleaching cellulose pulp obtained from hardwood, wherein bleaching chemical containing chlorine is used. The essential feature of the invention is that the residual chlorine content of the bleached pulp is reduced by subjecting the pulp to enzyme treatment. With the enzyme especially the removal from the pulp of chlorine-binding extractive substances present in hardwood pulp is promoted. The invention furthermore concerns the use of enzyme towards lowering the residual chlorine content of bleached cellulose pulp made from hardwood. Such cellulose pulp is particularly contemplated which will be converted into foodstuff package cardboard or paper, which are commonly disposed of by burning. Lowered chlorine content reduces the risk of producing toxic dioxin at the incineration step.
Patent NO-177258-C (NO)
Inventor: OVERHOFF DIETRICH
IPC: B60C11/13
Filed: 1992-11-24
Abstract: In a tyre tread profile for a vehicle tyre having profile grooves which extend essentially obliquely with respect to the transverse direction and between which profile blocks are delimited, there is provision, according to the invention, in order to improve the transmission of traction forces and braking forces, for projections (15) to be provided on the side faces (11) which bound the profile blocks (5) with respect to the profile grooves (1), the said projections (15) widening towards the base (11) of the groove in a V shape and extending stepped in a saw-tooth shape in the longitudinal direction of the profile grooves (1). <IMAGE>
Patent NO-178841-C (NO)
Inventor: BITTER JACOBUS MARIA
IPC: A47B31/06
Filed: 1993-04-22
Abstract: PCT No. PCT/NL91/00210 Sec. 371 Date Jun. 23, 1993 Sec. 102(e) Date Jun. 23, 1993 PCT Filed Oct. 23, 1991 PCT Pub. No. WO92/06617 PCT Pub. Date Apr. 30, 1992.A trolley is described, which is designed for conveying products, in particular foods and drinks for sale, and which has plural containers which can be placed one above the other in a frame. The frame is provided with wheels and has a fixed water supply container with insulation and heating means and a battery-supplied pump for conveying the water heated in the supply container to one or more tap points. The plural containers are selected from: (i) an insulated, heat-conserving container with heating means; (ii) an insulated cooling container which may optionally have cooling means; (iii) an additional insulated hot container which may be coupled to the fixed water supply container and which may optionally be provided with heating means; and (iv) a supply container which can optionally be insulated. The heating means, cooling means and/or containers can be exchangeable for each other. A lifting device with scissor mechanism and belt drive for raising the trolley to a desired height is also described.
Patent AU-737078-C (AU)
Title: Compositions and methods for treating or preventing diseases of body passageways
Inventor: HUNTER WILLIAM L
IPC: A61K33/24
Filed: 1997-05-26
Granted: 2002-05-02
Abstract: The present invention provides methods for treating or preventing vascular diseases associated with narrowing or obstruction of a blood vessel, comprising the step of delivering to an external portion of the body passageway an anti-angiogenic factor.
Patent CA-2001569-C (CA)
Inventor: HAYANO KOICHIRO
IPC: B29C45/17
Filed: 1989-10-26
Granted: 1998-11-24
Abstract: A wheel cover for automobiles includes a main body which is composed of a thermoplastic synthetic resin material, and which is integrally provided on its rear surface with a plurality of reinforcing ribs projecting rearwardly of the main body.  At least one of the reinforcing ribs has a hollow bottom portion adjacent to the rear surface of the main body, having a width which is greater than the thickness of the main body.  The ribs with the hollow bottom portion serve to realize satisfactory rigidity and impact resistance of the wheel cover, without accompanying formation of undesirable sink mark on the front surface of the main body to deteriorate the appearance.
Patent CA-2003025-C (CA)
Title: Polyphase electronically commutated reluctance motor
Inventor: HANCOCK CLYDE J
IPC: H02K29/06
Filed: 1989-11-15
Granted: 1998-05-12
Abstract: A motor structure and energization scheme provides a high efficiency electronically commutated reluctance motor that is characterized by less iron losses than conventional switched reluctance motors. The motor operates without the reversal of the flow of flux in the stator.  Also, the flux switching frequency in the stator is minimized.  By eliminating flux reversals and minimizing the flux switching frequency, the electronically commutated reluctance motor is operable over a wide range of speeds with improved efficiency.  Structurally, the stator includes unevenly spaced poles which are grouped into pairs separated by a space related to the even spacing of the poles on the rotor.  Adjacent pairs of poles on the stator are separated by a spacing which is not equal to the spacing between the poles of a pair.  To provide for rotation of the rotor, each pair of poles on the stator is polarized to form poles of opposite polarity such that a magnetic circuit joins the two adjacent poles of the pair.  Magnetic circuits linking different pairs of stator poles, which are the source flux reversals and high switching frequencies in conventional motors, are prevented by providing a stator construction that is without low reluctance paths between adjacent pairs of stator poles.
Patent CA-2009729-C (CA)
Title: A predictive access-control and routing system for integrated services telecommunication networks
Inventor: KHERADPIR SHAYGAN
IPC: H04M3/00
Filed: 1990-02-09
Granted: 2001-05-15
Abstract: A predictive access-control and routing system for a telecommunications network operating in uncertain environments and capable of handling heterogeneous traffic. The system is a real-time, state-dependent network traffic control system in which the control strategy is a function of both real-time congestion levels and real-time traffic profiles. At specific time epochs, the system, using real-time measurements of source-destination arrival dates and trunk group link occupancies, generates predictions of all network trunk group occupancy levels for the next epoch as a function of routing and access control. It then minimizes a projected cost function, such as blocking, to generate a traffic control policy to be implemented during the next time interval.
Patent CA-2015451-C (CA)
Title: Image forming apparatus
Inventor: YAMADA YOSHIKADO
IPC: G03G21/00
Filed: 1990-04-25
Granted: 1996-02-20
Abstract: An image forming apparatus includes a rotatable cassette having a rotating section movable between a longitudinal feed position from which paper oriented longitudinally with respect to a feeding direction is fed, and a lateral feed position from which paper oriented laterally with respect to the feeding direction is fed. The rotating section is driven by a driving motor. A document size detection device detects the size and orientation of a document. An automatic paper selection function selects a cassette which stores appropriate copy paper to be fed, in accordance with document size/orientation data obtained from the document size detection device and magnification data. A timer measures a predetermined period of time. A RAM stores the document size/orientation data. A control means controls (i) the timer to start its measuring operation upon detection of a document size/orientation by the document size detection device, and (ii) the driving motor to move the rotating section of the rotatable cassette to either of the longitudinal and lateral feed positions which corresponds to a determined orientation of the copy paper if the copy material orientation changing means is selected by the automatic paper selection function, and there occurs no change in the document size/orientation data sent from the document size detection device to the RAM before the completion of the measuring operation by the timer. The control means renews the document/size orientation data stored in the RAM and restarts the measuring operation of the timer if the document size/orientation data have been changed before the completion of the first set measuring operation of the timer. With the above arrangement, even if there occurs a change in the document size/orientation data due to a detection error etc. within a predetermined time period, the rotating section of the rotatable cassette can be set in a desired feed position without undesirable rotations.
Patent CA-2015716-C (CA)
Title: Intumescent conforming mounting pad
Inventor: PITTS ORLAND C
IPC: B32B7/02
Filed: 1990-04-30
Granted: 2000-02-22
Abstract: As an article of manufacture an intumescent conforming mounting pad for fragile structures comprised of at least two plys of intumescent sheet material adhesively bonded together over a predetermined part of their adjoining faces said plys and being offset a predetermined amount lengthwise whereby said pad can be bent around a fragile structure and the ends can be joined without cracking or buckling.
Patent CA-2017062-C (CA)
Title: Switching power supply apparatus and isolating method thereof
Inventor: NAKANO HIROTAMI
IPC: H02M3/337
Filed: 1990-05-17
Granted: 1995-08-29
Abstract: A switching power supply apparatus includes a high frequency switching power supply circuit (1) supplied with a direct current voltage from a direct current power source (E).  Switching elements (S1, S2) included in the high frequency switching power supply circuit alternately become conductive in response to a control pulse, whereby high frequency power is generated.  The high frequency power is transferred through an isolation barrier (45) formed of capacitors (C1, C2) to a frequency converting circuit (7) wherein the high frequency power is frequency-converted into direct current power and then supplied to a load circuit (4).  Accordingly, a conventionally used transformer is not required, so that no iron loss nor copper loss is generated in a isolation circuit (20), which allows the apparatus to be made more compact and lighter.
Patent CA-2021328-C (CA)
Title: Stereoselective preparation of z-1,2-diarylallyl chlorides and the conversion thereof into azolylmethyloxiranes and novel intermediates
Inventor: KOBER REINER
IPC: C07C17/357
Filed: 1990-07-17
Granted: 2001-03-13
Abstract: Disclosed is a process for the stereoselective preparation of Z-1,2-diarylallyl chlorides of the general formula I (See formula I) in which R1 and R2, independently of one another, are hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or an unsubstituted or substituted aromatic radical, and n and m are 1, 2 or 3. This process by which the compounds of formula I can be prepared in high isomeric purity, ie. with a high preference for the E- or trans-configuration of the phenyl radicals on the double bond, and in high yield, comprises dehydrating a chlorohydrin of the formula II (See formula II) in which the radicals are as defined above, at up to 50°C in an inert ether or carboxylic acid ester as solvent and in the presence of a carboxylic anhydride and an organic or inorganic acid. The compounds of formula I that are so obtained are useful intermediates for the preparation of pharmacological, fungicidal and antimycotic active compounds.
Patent CA-2040073-C (CA)
Title: Low amperage microfuse
Inventor: COOK JAMES WILLIAM
IPC: H01H85/00
Filed: 1991-04-09
Granted: 2000-08-29
Abstract: subminiature fuse includes a ceramic substrate with a glass coating disposed over a portion thereof. A fusing link is disposed on the glass coating, and weld pads for receiving fuse leads are disposed on opposite sides of the glass coating. the substrate, with leads attached, is encapsulated in plastic.
Patent CA-2040626-C (CA)
Inventor: HAYASHI SHIGEO
IPC: H04B10/58
Filed: 1991-04-17
Granted: 1995-05-23
Abstract: A light emitting element drive circuit which has high operation speed, low current consumption and provides an optical output signal with minimum distortion.  An inverted input signal is applied to a second transistor which drives a differentiating circuit.  The differentiating circuit drives a third transistor which provides a current path for discharging the light emitting element.  The light emitting element discharges when the input signal falls.  The input of the differentiating circuit and the input of the light emitting element drive circuit are isolated to prevent "back gating" distortion of the optical signal.
Patent CA-2040987-C (CA)
Title: An apparatus for treating package container blanks
Inventor: MAARTENSSON LARS
IPC: B65B55/10
Filed: 1991-04-23
Granted: 2000-09-05
Abstract: An apparatus for treating a package container blank with a fluid is disclosed and includes a rotary portion provided with a plurality of chambers for receiving the blanks and a fixed portion having a stator surface that faces the rotary portion. The fixed portion is provided with an arrangement that opens to the stator surface for supplying fluid so that upon successive rotations of the rotary member, the chambers will successively align with the arrangement for supplying fluid so that fluid is thereby supplied to the chambers.
Patent CA-2043198-C (CA)
Title: Portable electronic logbook and method of storing and displaying data
Inventor: BUSSMAN STEPHEN
IPC: G16H20/10
Filed: 1991-05-24
Granted: 1999-09-21
Abstract: An electronic logbook and method are provided for storing and displaying data for use by a diabetes patient. The electronic logbook includes memory for storing patient and program data, a user input device or keyboard for entering a plurality of user input selections and a processor device coupled to the memory and the user input device for generating at least one menu screen. The menu screen includes a plurality of predetermined indicia corresponding to a subplurality of the of user input selections. Responsive to an identified user input selection, the stored patient data is selectively accessed for generating a desired report. A display device is operatively driven by the processor device for displaying the generated report.
Patent CA-2045385-C (CA)
Title: Processor method of multiplying large numbers
Inventor: WIENER MICHAEL JAMES
IPC: G06F7/52
Filed: 1991-06-25
Granted: 1998-04-14
Abstract: For a public key encryption system, for example using the RSA (Rivest, Shamir, and Adleman) algorithm, large numbers, for example each of the order of 256 bits and represented by a plurality of sequentially stored words, must be multiplied together during a modular exponentiation process for coding information. To achieve this at high speed, there is described a method using a digital signal processor which has two accumulators for accumulating products of words, each accumulator having a capacity of more than twice the size of the words which are multiplied. The two accumulators are used alternately for accumulating partial products of the same significance in a multiplication of two numbers. Pointers to the sequentially stored words are incremented in opposite directions to point to words to be multiplied to form partial products of the same significance, and the pointer incrementing directions are changed for sets of partial products of increasing significance. The pointer control and alternating use of the accumulators enables a significant increase in multiplication, and hence coding, speed to be achieved.
Patent CA-2050550-C (CA)
Title: High solids self-contained printing ink
Inventor: DOLL GARY W
IPC: C09D11/02
Filed: 1991-09-03
Granted: 1996-05-07
Abstract: A high solids contents, aqueous-based, self-contained printing ink is provided including, a non-volatile diluent, an acidic color developer, a binder, and a water soluble surfactant which is compatible with the binder in the ink, but which is incompatible with the binder when the ink has dried.  The high solids, self-contained printing ink further includes microcapsules containing a dyestuff precursor that is capable of reacting with the acidic color developer to form a color.  The ink may be used to prepare self-contained carbonless copy sheets.
Patent CA-2051099-C (CA)
Inventor: JONES GARETH JEREMY
IPC: G01N27/49
Filed: 1990-04-04
Granted: 2000-11-07
Abstract: Circuit pour tester le bon fonctionnement d'un détecteur de gaz électrochimique ampérométrique (10), lequel contrôle la concentration de gaz toxiques dans une atmosphère. Le détecteur (10) est muni d'électrodes de détection (12), d'un électrode de référence (14) et d'une contre-électrode (16). En fonctionnement normal, la tension entre les électrodes de détection et de référence est fixée moyen d'un amplificateur asservi (18); lorsque l'atmosphère contient du gaz, celui-ci réagit électrochimiquement à l'électrode de détection (12) et modifie en conséquence la tension entre les électrodes de détection et de référence. Cette modification amène l'amplificateur (18) à alimenter en courant électrique la contre-électrode. Un courant électrique proportionnel à la quantité de gaz toxique contenue dans l'atmosphère passe alors par le détecteur. Le bon fonctionnement de ce dernier est régulièrement testé. Pour ce faire, on applique un potentiel impulsé entre les électrodes de détection et de référence; si le détecteur marche correctement, un courant passe alors par le détecteur (10) et par le circuit et est détecté par un système d'alarme (33) connecté à un potentiomètre (30) par un interrupteur (30a) pendant les périodes d'essai. Si le système d'alarme (33) ne détecte pas de courant, ceci signifie que le détecteur ne fonctionne pas correctement et le système donne l'alarme (33).
Patent CA-2061607-C (CA)
Title: 1-biphenylimidazole derivatives, their preparation and their therapeutic use
Inventor: YANAGISAWA HIROAKI
IPC: A61K/
Filed: 1992-02-20
Granted: 1999-01-19
Abstract: Compounds of formula (I):        (see fig. I) wherein  R1 is alkyl or alkenyl; R2 and R3 are hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, or aryl fused to cycloalkyl; R4 is hydrogen, alkyl, alkanoyl, alkenoyl, arylcarbonyl, alkoxycarbonyl, totrahydropyranyl, tetrahydrothiopyranyl, tetrahydrothienyl tetrahydrofuryl, a group of formula -SiR a R b R c, in which R a, R b and R c are alkyl or aryl, alkoxymethyl, (alkoxyalkoxy)methyl, haloalkoxymethyl, aralkyl, aryl or alkanoyloxymethoxycarhonyl; R5 is carboxy or a group of formula -CONR8R9, wherein R8 and R9 are hydrogen atoms or alkyl, or R8 and R9 together form alkylene; R6 is hydrogen, alkyl, alkoxy or halogen; R7 is carboxy or tetrazol-5-yl; and pharmaceutically acceptable salts and esters thereof have hypotensive activity and can be used for the treatment and prophylaxis of hypertension.  They may be prepared, inter alia, by reacting a biphenylmethyl compound with an imidazole compound.
Patent CA-2071407-C (CA)
Inventor: BLEICH LARRY LYNN
IPC: H01B13/02
Filed: 1992-06-17
Granted: 1996-03-05
Abstract: Methods and apparatus are provided for providing an electrically matched pair (20) of insulated metallic conductors (21, 21).  Insulation is applied to successive portions of a length of wire-like metallic conductor (22) after which a colorant material (37) is applied to the surface of a plastic insulation material of a first portion of the length of the metallic conductor which is being moved along a path of travel. Facilities are provided for shielding a supply of the colorant material from the moving insulated metallic conductor and for then exposing a second portion of the length of the insulated metallic conductor to a different colorant material. The insulation and the colorant materials and their disposition with respect to the insulation are such that the dielectric constant of one insulated metallic conductor of the pair is substantially equal to that of the other. The first and second portions of the length of the insulated metallic conductor are separated from each other and are twisted together to provide an electrically matched pair.
Patent CA-2072411-C (CA)
Title: Transversally anisotropic optical fibre device and manufacturing method for said device
Inventor: GRARD EMMANUEL
IPC: G02B6/024
Filed: 1992-06-25
Granted: 1996-11-19
Abstract: The lateral surface of a ferrule (16) carrying the said fibre (10) substantially exhibits a projecting dihedron (17, 19) substantially engaged in a complementary reentrant dihedron (22, 24) formed in a ferrule receiver (20). 
<??>The invention applies especially to the production of a laser-emission head for fibre-optic telecommunication networks. 
<IMAGE>
Patent CA-2074974-C (CA)
Title: Demodulator for digitally modulated wave
Inventor: ISHIKAWA TATSUYA
IPC: H04L27/233
Filed: 1992-07-30
Granted: 1998-06-23
Abstract: A QPSK modulated wave is inputted to an in-phase detector and an orthogonal detector.  The detected components are converted to substantially a base band, and each component is digital-converted by A/D converters.  Each digital component is spectrum-shaped by digital LPFs.  The outputs of digital LPFs are inputted to a complex multiplier and calculated by use of first and second reproduction carriers and expressed as first and second calculation outputs, and inputted to a phase detector.  The phase detector obtains phase difference data between the phase expressed by the first and second calculation outputs and a predetermined phase and quadrant data of the phase.  The phase difference data is used for a PLL.  The phase difference data is inputted to a frequency error detection circuit detecting a frequency error.  The frequency error output is smoothed by a filter of an AFC loop, and used as a control signal controlling the oscillation frequency of the local oscillation unit.  If the frequency error is large, the frequency error detection circuit controls the AFC loop to be in an operation state and the PPL loop to be fixed state.          If the frequency error is small, the frequency error detection circuit contains the control state of the AFC loop and switches the PLL loop to be the operation state.
Patent CA-2077721-C (CA)
Title: Printing system having optical super-vision apparatus of a substrate running web, particularly a paper web
Inventor: ERHARDT BRUNO
IPC: B41F13/02
Filed: 1992-09-08
Granted: 1997-11-25
Abstract: To provide a compact monitoring unit for substrate webs passing through a printing machine, typically paper webs, and thereby provide rapid response of damage control units, such as paper capturing rollers, small tears, fissures or holes in the substrate webs are sensed by locating an elongated light source (12) below the web, the light source extending beyond the lateral sides of the web to be supervised; an optical scanner (2) formed of a plurality of light guides (4) within a plastic block (5a) provides signals representative of light shining through damaged areas, and on the side of the web.  The light guides then are bundled or compressed in a bundling or compression element (6), and the outputs thereof are applied to a charge coupled device sensor chip (7), directly, without intervention of optical systems, the charge coupled device being in turn connected to an evaluation and control unit which can provide "damaged web" signals to the damage control unit itself through a suitable output coupling.