baber/WOPTO huggingface dataset:
Patent CA-2052345-A1 (CA)
Title: Power supply circuit
Inventor: SHIMIZU KEIICHI
IPC: H02M7/537
Filed: 1991-09-27
Abstract: Abstract of the Disclosure In a power supply circuit the AC voltage of a commercial AC power source is full-wave rectified by a diode bridge and equally divided into two halves by a series circuit comprising two capacitors connected to the respective output terminals of the diode bridge.  A smoothing capacitor and two field effect transistors which are connected in parallel between the output ter-minals of the diode bridge via inductors operate as a half bridge inverter.  The electric energy coming from the capacitors is temporarily stored in the inductors so that they act as so many voltage booster choppers according to the operation of first and second reverse-conducting switches.  The input voltage supplied from the diode bridge via a voltage divider circuit and the voltage between the two terminals of the smoothing capacitor obtained by way of a diode, a capacitor and a voltage divider circuit are compared by a comparator circuit.  Drive circuits are controlled by a control circuit such that the switching operation of the field effect transistors is terminated when the input voltage from the diode bridge has risen above a predetermined level according to the output of the comparator circuit that represents the result of comparison.
Patent CA-2052415-A1 (CA)
Title: Camera apparatus for use with film cassette having locking means for exposure status indicator
Inventor: CLOUTIER ROBERT P
IPC: G03B17/30
Filed: 1991-10-04
Abstract: Abstract Camera Apparatus For Use With Film Cassette Having Locking Means For Exposure Status Indicator A photographic camera to be used with a film cassette having a locking member movable between respective locking and non-locking positions for arresting and releasing a film exposure status indicator in any one of several exposure status positions, is characterized in that a loading chamber is configured to receive the film cassette with the indicator in at least one of its exposure status positions and actuation means is located in the loading chamber for moving the locking member from its locking position to its non-locking position responsive to insertion of the cassette into the loading chamber and for moving the locking member from the non-locking position to the locking position responsive to removal of the cassette from the loading chamber.
Patent CA-2055577-A1 (CA)
Title: Control information transmission method for an asynchronous time division multiplex cell transmission link
Inventor: VINEL PAUL
IPC: H04L12/56
Filed: 1991-11-14
Abstract: The invention relates to a method according to which the control information produced by the control procedure (OCE) is transmitted in the form of control cells. On transmission, the control cells obey a format which enables them to be identified as such, the empty cells to be transmitted over the link are identified (DCV), and every control cell to be transmitted (RCE, Ice) takes the place on the link (LT) of an empty cell which is then not transmitted. On reception, the control cells are detected and extracted (DCC), in order to be used in the control procedure (OCR, RCR, COMP), and are replaced, as needed, by empty cells (DIR). <IMAGE>
Patent CA-2056835-A1 (CA)
Title: Hydrophilic form of perfluoro compounds and methods of manufacture
Inventor: FUISZ RICHARD C
IPC: A61K9/70
Filed: 1991-12-03
Abstract: ABSTRACT OF THE DISCLOSURE Perfluoro compounds such as C12F20; C12F27N; C12F26O;          C8F17Br; and C14F24 are rendered dispersable colloidally in water or other polar media without the aid of an emulsifying agent by melt spinning a mixture of the compound with a carrier agent, e.g., a saccharide.  Thus, a family of new colloidal perfluoro compounds are produced.
Patent CA-2057642-A1 (CA)
Title: Systeme et methode hierarchiques surs de transmission video
Inventor: BRADLEY GRAHAM C
IPC: H04N7/173
Filed: 1991-12-13
Abstract: L'invention est un système amélioré de distribution de programmes de divertissement et d'enseignement à une pluralité d'utilisateurs à partir d'une pluralité de bibliothèques électroniques. Les utilisateurs se servent d'un dispositif de commande à main pour : consulter la liste des programmes disponibles; valider la transmission d'un programme à partir d'une bibliothèque; ou commander l'exploration des programmes en sens direct et inverse; et autoriser l'achat de biens de consommation annoncés en introduisant des numéros d'identification personnels. Le réseau des bibliothèques et les trajets de transmission des programmes qui y sont stockés sont configurés de façon à optimiser le rendement de transmission et à maximiser la capacité d'accès. L'idée clé dans l'optimisation du rendement de transmission et la maximisation de la capacité d'accès consiste à reconnaître que les programmes peuvent être groupés dans des classes différentes et que ces classes ne doivent pas toutes être stockées dans toutes les bibliothèques. Les programmes de divertissement à forte demande doivent être stockés dans une source centrale et distribués à partir de celle-ci, alors que les programmes éducatifs ou culturels à faible demande doivent être stockés dans une bibliothèque locale située dans un voisinage où il y a une demande pour ces programmes et être distribués à partir de celle-ci. Le système de l'invention est sûr et ne nécessite pas de chiffrement. Les programmes ne sont transmis à aucune autre adresse physique que celle de l'utilisateur demandeur. Un appareil est utilisé pour empêcher la duplication non autorisée des programmes transmis. Le système permet également la transmission des signaux de télévision par câble courants de façon concurrentielle. Un appareil est utilisé pour maximiser la capacité d'accès et minimiser les investissements.
Patent CA-2058111-A1 (CA)
Inventor: BRUSSEE JOHANNES
IPC: C07C215/30
Filed: 1991-12-19
Abstract: Abstract The present invention is concerned with the preparation of erythro N-substituted vicinal aminoalcohol derivatives from hydroxyl-protected cyanohydrin derivatives by successive Grignard reaction,  transimination using a primary amine, reduction of the resulting imine and removal of the hy-droxyl-protecting group. The products are obtained either as a racemate or in an optically pure form, depending upon the stereochemical composition of the cyanohydrin derivatives.
Patent CA-2059878-A1 (CA)
Title: Connection hold control system
Inventor: ISHIBASHI RYOICHI
IPC: H04L47/43
Filed: 1992-01-23
Abstract: ABSTRACT OF THE DISCLOSURE          A connection hold control system is adapted to a data communication system in which a data communication is alternately made between a first terminal and a second terminal and between the first terminal and a third terminal, where each of the first through third terminals is coupled to a communication network via a terminal adapter.  The connection hold control system includes a hold part, provided within a first terminal adapter which is coupled to the first terminal, for holding a first channel which connects the first and second terminals via the communication network and the terminal adapters after a data communication from the first terminal to the second terminal ends, and a connect part, provided within the first terminal adapter, for connecting the first and second terminals via the first channel if a data communication from the first terminal to the third terminal via a second channel ends within a predetermined time after the data communication from the first terminal to the second terminal ends.
Patent CA-2061760-A1 (CA)
Title: Silica to decrease fat absorption in fried foods
Inventor: EL-NOKALY MAGDA
IPC: A23L1/00
Filed: 1992-02-24
Abstract: Potato  pieces,  for  example,  potato  slices,  french fries, and potato cubes or potato skins are prepared with a lower fat content by frying the potato pieces in an oil comprising from about 0.5 to about 2% of a hydrophobic or a hydrophilic silica.  The hydrophilic silicas are preferred for use in the frying fat because they are approved for food use.  Alternatively, the potato pieces can be dipped in silica or water or oil containing silica.
Patent CA-2061966-A1 (CA)
Inventor: AGARWAL KRISHNA K
IPC: H01Q1/24
Filed: 1992-02-27
Abstract: An RF antenna and an associated receiver are proximately located in an integrated antenna/receiver unit thereby eliminating the need for baluns and inter-component cabling characteristic of prior designs. Integration of the receiver with the antenna provides for improved sensitivity as the need for utilizing signal dissipating and noise introducing cables and baluns to transmit the signal received by the antenna to the receiver is eliminated. Direct coupling of the antenna and receiver on a single gallium arsenide integrated circuit maintains balanced impedance from the antenna to the receiver.
Patent CA-2062280-A1 (CA)
Title: Process for dyeing keratinic fibers, combining isatin or the derivatives thereof with a tri-, tetra or pentasubstituted aniline or a phenylalkylenediamine; dyeing agents
Inventor: LANG GERARD
IPC: C07C211/53
Filed: 1992-03-04
Abstract: The invention relates to a process for dyeing keratinous fibres, comprising the simultaneous or sequential application of a component (A) containing at least one compound of formula (I):   <IMAGE> (I) in which: R1 denotes hydrogen, alkyl, acetyl, benzoyl, phenyl or C1-C4 carboxyalkyl, R2 and R3 denote hydrogen, alkyl, alkoxy, hydroxyalkyl, amino, halogen, nitro, alkylphenyl, phenyl, alkylamino or hydroxyalkylamino, and a component (B) containing at least (i) a compound of formula (II):   <IMAGE> (II)    in which: Y denotes OH or NR8R9, R8 and R9, which are identical or different, denote hydrogen, aminoethyl, hydroxyethyl or C1-C4 alkyl, R4 to R7 independently of each other denote a hydrogen atom, a C1-C4 alkyl, a chlorine, a C1-C4 alkoxy, an acetylamino, an aryloxy, not more than two of the groups R4 to R7 denote a hydrogen atom, excluding 2,5-dimethoxy-1,4-diaminobenzene, and the cosmetically acceptable salts, or (ii) a bisphenylalkylenediamine. It also relates to the dyeing agents for implementing it.
Patent CA-2069470-A1 (CA)
Inventor: ARNOLD DOROTHY
IPC: B25H7/04
Filed: 1992-05-22
Abstract: A fabric cover marking device is for marking the location on a fabric cover for a female fastener portion engageable with a complementary male fastener portion mounted on a structure to be covered, for example a boat.  The device comprises a socket portion and a pin portion.  The socket portion is releasably engageable with the male fastener portion.          The pin portion is mounted on the socket portion and is capable of piercing the fabric cover when the socket portion is engaged with the male fastener portion.  Embodiments for releasable engagement with snap studs, lift-a-dot fastener studs, and turnbuckles are disclosed.  The method for manufacturing a fabric cover for covering a structure having mounted thereon a plurality of male fastener portions to which the cover is to be fastened comprises the steps of securing onto each of the male fastener portions a marking device comprising a socket portion complementary to the male fastener portion and having a pin portion mounted thereon, disposing a fabric cover over the structure and over the marking devices secured to the male fastener portions, piercing the fabric cover with the pin portions of the of the marking device secured to the male fastener portions, marking the fabric cover at each of the locations where the fabric cover was pierced by one of the pin portions, and securing a female fastener portion to the fabric cover at each marked position.
Patent CA-2073461-A1 (CA)
Title: Milk supply system for livestock
Inventor: SOPPE JOHN B
IPC: A01K7/00
Filed: 1991-01-07
Abstract: A system for supplying milk or other liquids to individual drinkers (16) from which animals can drink on a need basis by actuating a valve (32) in the drinker (16) that allows the milk to flow into the drinker (16). In the system, each drinker is positioned so that milk is continuously circulated through the drinker (16) any time the circulating pump (12) is running. This not only keeps the milk from becoming stale, but it also prevents the drinkers (16) from becoming clogged and permits the entire system to be cleaned in place.
Patent CA-2076581-A1 (CA)
Title: Strap for retaining junction box
Inventor: BARTOW DONALD W
IPC: H02G3/12
Filed: 1992-08-21
Abstract: ABSTRACT    A device for retaining an electrical junction box in flush relationship with a wall or a ceiling has a thin elongate strap.          The ends of the strap are longitudinally bifurcated to provide fingers to be deformed around the edges of the box as well as the outer wall surface.  Wings extending out from a side edge of the strap are used to provide support against the inner wall surface.
Patent CA-2079375-A1 (CA)
Title: (hetero-arylmethoxy)indoles as inhibitors of leukotriene biosynthesis
Inventor: GILLARD JOHN W
IPC: A61K31/42
Filed: 1992-09-29
Abstract: Compounds having the formula I:      are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating diarrhea, hypertension, angina, platelet aggregation, cerebral spasm, premature labor, spontaneous abortion, dysmenorrhea, and migraine.
Patent CA-2079668-A1 (CA)
Inventor: HALLDEN-ABBERTON MICHAEL P
IPC: C08L51/04
Filed: 1992-10-01
Abstract: ABSTRACT   The invention is directed to dear polymer blends of acrylic/vinyl aromatic copolymers with certain core-shell polymer impact modifiers. The core-shell modifiers have lightly crosslinked, predominantly diolefinic rubbery cores and one or more hard shells.
Patent CA-2079925-A1 (CA)
Title: Hydroreacting material to obtain hydrogen and method of preparing the same
Inventor: KIRILLOV VLADIMIR I
IPC: B01J23/06
Filed: 1992-10-06
Abstract: ABSTRACT OF THE DISCLOSURE      A hydroreacting material to obtain hydrogen compri-ses a hydrogen-educing metal and a catalyst, with zinc used as an additional component. The hydrogen-educing metal is magnesium. The components used for catalysts include metals capable of producing in the crystal lat-tice of magnesium areas with hydrogen overvoltage rang-ing from 0.1 to 0.5 V, the corrosion current being 3 mA/cm2. The proportions of the components taken in % by mass are as follows:   zinc      0.5 to 0.02 catalyst  0.5 to 3.0 magnesium the balance
Patent CA-2083260-A1 (CA)
Title: Preparation of diagnostic agents
Inventor: SUTTON DEREK ANDREW
IPC: A61B8/14
Filed: 1992-04-10
Abstract: Microcapsules are prepared by a process comprising the steps of (i) spray-drying a solution or dispersion of a wall-forming material in order to obtain intermediate microcapsules and (ii) reducing the water-solubility of at least the outside of the intermediate microcapsules. Suitable wall-forming materials include proteins such as albumin and gelatin. The microcapsules have walls of 40-500 nm thick and are useful in ultrasonic imaging. The control of median size, size distribution and degree of insolubilisation and cross-linking of the wall-forming material allows novel microsphere preparations to be produced.
Patent CA-2085916-A1 (CA)
IPC: A61C15/04
Filed: 1992-12-21
Abstract: A lighted electric dental flosser with a rechargeable battery compartment includes a motor casing, interchangeably individualized head units, and disposable plastic floss tips that snap mount within the hinged end of the head unit.   The floss tips exhibit bidirectional flossing motion provided from a motion translation system including an eccentric cam,   a yoke, and an output shaft with a cam follower mechanism that follows a generally Z-shaped tracking surface with a vertical track component and a horizontal track component enabled by the yoke to complete the resulting "Z" movement.  The floss tips have a molded-in filament and are molded from a shock absorbing substance which absorbs the vertical component of the "Z" shaped motion upon the application of pressure to the filament thereby outputting horizontal motion until the filament passes through the contact area between two teeth.  In an automatic mode, an infrared sensor in the head activates the motor when the line of sight between infrared sensors is broken by the filament approaching a contact area between two teeth.
Patent CA-2088497-A1 (CA)
Title: High power light source
Inventor: RAVEN ANTHONY
IPC: G02B27/00
Filed: 1991-08-01
Abstract: An optical system for producing a high power light source comprises a number of laser diodes, or similar sources, which emit light from an emission stripe (8) having a long dimension a (x-axis) and a short dimension b (y-axis) and which have a high-er numerical aperture in the y-axis than in the x-axis. The laser beams (9) are collimated by a lens (10) and focused onto an opti-cal fibre by a further lens (20). Prior to the focusing, the collimating beams (11) are anamorphically expanded/reduced by beam shaping means (12) so that the width of each beam (11) in the x-axis is increased in relation to the width in the y-axis. The images (21) produced on the fibre end are thus anamorphically magnified so that the anamorphic ratio between the magnification of the stripe (8) in the y-axis and in the x-axis is greater than one. By the brightness theorem, this anamorphic magnification results in a correspondingly relative decrease in the y-axis numerical aperture to enable a corresponding increase in the number of beams (11), which can fit into the solid angle of the target.
Patent CA-2090421-A1 (CA)
Title: Medication management system
Inventor: MAYFIELD MARY E
IPC: A61J7/04
Filed: 1991-08-15
Abstract: The disclosure is directed to a chart (10) listing medications (12), dosage times (16), and notes (20). Tactile and visual medication symbols (14) and marking elements (18, 18', 18'', and 18''') denote specific times for taking specific medications. Medication containers are similarly marked.
Patent CA-2096351-A1 (CA)
Title: Magnetic cement-bound bodies
Inventor: BACHE HANS H
IPC: C04B7/52
Filed: 1991-11-12
Abstract: Castable and curable cement-based powder compositions comprising:  i) particles of a magnetic or magnetizable particulate material, and ii) a subcomposition including: cement particles, ultrafine particles of an inorganic material, said ultrafine particles having an average particle size in the range of 0.002-2 µm, and a surface-active dispersing agent in an amount of 0.1-4 % by weight dispersing agent based on the total weight of said cement particles and said ultrafine particles, said ultrafine particles constituting 3-30 % by volume of said powder composition, said cement particles constituting 2-70 % by volume of said powder composition, said particles of said magnetic or magnetizable particulate material constituting 10-95 % by volume, preferably 30-95 % by volume of said powder composition, and said particles of said subcomposition having an average particle size of at the most 10 µm;  cement-bound bodies having magnetic or magnetizable properties produced from such compositions, and methods of producing such bodies.
Patent CA-2097264-A1 (CA)
Title: Laminate with web and laid components
Inventor: SCHOEPS MICHAEL
IPC: D04H1/46
Filed: 1993-05-28
Abstract: There are described a dimensionally stable laminate whose surfaces are formed by spunbonded webs and comprising at least two layers of spunbonded and at least one laid layer of reinforcing yarn, the laid layer or layers each being disposed between two layers of spunbonded and having a thread density of from 0.5 to 3 threads/cm, spunbonded and laid layers having been joined together by needling at about 20-70 stitches/cm2, a process for manufacturing this laminate, and its use for manufacturing roofing sheets and roof sealing sheets.
Patent CA-2098592-A1 (CA)
Title: Balanced pressure solid fuel heating unit
Inventor: BUCKNER CARROL E
IPC: F24B1/02
Filed: 1991-12-17
Abstract: A method and apparatus for a pellet fuel burning heating unit for burning corn or wood pellets having a balanced pressure system having a four-way split combustion intake airstream. The invention includes a combustion air blower system for providing combustion air into a firebox (42) containing a burner (66) under positive pressure and at the same time providing a negative pressure to remove the combustion gases from the firebox. A pressure regulator and air splitter (44) maintains a balance between the positive and negative pressure and adjusts the air flow into the firebox and out the exhaust. The exhaust is provided through a bank of exhaust tubes (48) running from the top of the firebox to an exhaust manifold (56). The blower air moves into the pressure regulator and air splitter dividing the air flow such that a portion enters the heating unit exhaust manifold to produce a negative pressure and the remaining portion enters the heating unit burner under positive pressure.
Patent CA-2098735-A1 (CA)
Title: Novel methylenebisphosphonic acid derivatives
Inventor: POHJALA ESKO
IPC: C07F9/58
Filed: 1991-12-18
Abstract: Novel pharmacologically active methylenebisphosphonates having formula (I) wherein R1-R4 independently are C1-C10-alkyl, C3-C10-cycloalkyl, aryl, aralkyl, silyl SiR3 or hydrogen, whereby in formula (I) at least one of the groups R1-R4 is hydrogen and at least one of the groups R1-R4 is different from hydrogen; Q1 is hydrogen, hydroxyl, halogen, ami-no NH2, or OR'1, wherein R'1 is C1-C4-alkyl or acyl; Q2 is the group,(.alpha.) wherein Y is a six-membered heterocyclic group, or a carbocyclic aromatic group, X is a bond, O, S or NR"', wherein R"' is hydrogen, lower alkyl, or acyl, n is the integer 0 to 6, and R' and R" are hydrogen or lower alkyl provided that as a ring atom of the ring Y and/or a chain atom of the group X, there is always at least one heteroatom from the group of O, N and S, including the stereoisomers and the salts of the compounds.
Patent CA-2099083-A1 (CA)
Title: Process for the catalytic partial oxidation of hydrocarbons
Inventor: VONKEMAN KOERT A
IPC: C01B32/40
Filed: 1993-06-23
Abstract: A process for the catalytic partial oxidation of a hydrocarbon feedstock comprises contacting a feed comprising the hydrocarbon feedstock, an oxygen-containing gas and, optionally, steam at an oxygen-to-carbon molar ratio in the range of from 0.45 to 0.75, with a catalyst in a reaction zone at elevated pressure under adiabatic conditions, which catalyst comprises a metal selected from Group VIII of the Periodic Table supported on a carrier and which catalyst is retained within the reaction zone in a fixed arrangement having a high tortuosity. The fixed arrangement of the catalyst is preferably a fixed bed of a particulate catalyst or a ceramic foam.
Patent CA-2100869-A1 (CA)
Inventor: DELALLE JACQUES
IPC: H01R4/02
Filed: 1992-02-04
Abstract: A device (1) for forming an electricl connection between a plurality of electrical conductors comprises an electrically insulating sleeve (3), a metallic connecting element (4) located within the sleeve and a quantity of solder (8) for forming a permanent electrical connection between the conductors. The connecting element (4) has an external surface that is uneven so that a significant proportion of any radiation that is radially inwardly directed onto the external surface of the element will be reflected at least twice by the external surface of the element. This uneveness enables the response of the device to heating by infrared radiation to be significantly improved. The connecting element may be formed for example by coiling a wire having a polygonal, e.g. square, cross-section into a frusto-conical helix.
Patent CA-2101804-A1 (CA)
Title: Multiple purity membrane process
Inventor: GOTTZMANN CHRISTIAN F
IPC: B01D53/22
Filed: 1993-10-05
Abstract: MULTIPLE PURITY MEMBRANE PROCESS            Abstract Of The Disclosure Membrane systems having two or more processing stages are integrated so as to recover a high-purity product and one or more low-purity products.