baber/WOPTO huggingface dataset:
Patent CA-1161369-A (CA)
Inventor: PARSHALL DAVID G
IPC: B01D24/12
Filed: 1981-07-28
Granted: 1984-01-31
Abstract: JLS:pm  8/2 Case 5767 FILTRATION SYSTEM WITH BI-FLOW FILTER     ABSTRACT OF THE DISCLOSURE A filtration system includes a deep-bed type filter to receive an inflow of a waste water when the system is in a filtration mode.  A distribution plenum within the filter distributes the waste water to an upper and lower portion of the filter bed.  As the waste water flows to conduits centrally located within the bed, particulate in the waste water is entrapped by filter media comprising the bed.  The waste water is discharged from the system in a clarified condition.  Periodically the system is placed in a rejuvena-tion mode wherein a series of circuits are used to remove the entrapped particulate from the filter bed so that the system may again be returned to its filtration mode to process additional waste water.
Patent CA-1166577-A (CA)
Inventor: FUENTES OLGA
IPC: A61Q9/04
Filed: 1981-10-22
Granted: 1984-05-01
Abstract: A B S T R A C T     This invention is a harmless, odorless, chemically inert depilatory wax, composed entirely of natural ingredients, such as resin obtained from trees, beeswax, oil extracted from plants, and a mineral which does not react chemically with any of the other ingredients of the mixture, nor with the skin of the person using it.
Patent CA-1172653-A (CA)
Inventor: KOCH MANFRED
IPC: B01J31/00
Filed: 1982-01-26
Granted: 1984-08-14
Abstract: Abstract of the disclosure:      A process for the preparation of optically active 2-chloropropionic acid esters by decomposition of optically active 2-chlorosulfinoxypropionic acid esters in the presence of quaternary ammonium or phosphonium salts as catalysts.
Patent CA-1166803-A (CA)
Inventor: DUNWORTH BRUCE E
IPC: B22D41/46
Filed: 1982-02-09
Granted: 1984-05-08
Abstract: Abstract of the Disclosure The invention relates to a metallurgical well powder having reduced tendencies to hinder the flow of molten metal, by packing and jamming the opening, in a steel ladle for example, through which said molten metal will be teemed upon tapping said ladle.  The powder has essentially the following composition: natural zircon sand (80 to 200 mesh)    25 to 60% by wt. zircon, <325 mesh                       40 to 70% by wt. zircon, <600 mesh                        0 to 15% by wt.
Patent CA-1170365-A (CA)
Inventor: SYMONS ROBERT S
IPC: H01J25/00
Filed: 1982-03-05
Granted: 1984-07-03
Abstract: Gyrotron With Improved Stability Abstract In a gyrotron microwave tube, electromagnetic leakage through beam-transmitting drift tubes is greatly reduced by making the diameter of the drift tubes in centimeters less than 8.8 divided by f where f is the operating frequency in gigahertz.
Patent CA-1181324-A (CA)
Inventor: BROUCKSOU ROBERT H
IPC: F16H61/32
Filed: 1982-03-31
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE          A shift actuator 10, 100, 200) for selectively shifting a shift member (12, 102) to one of at least two selectable operating positions is provided.  The actuator includes a rotational member such as a cam (36) or scotch yoke flywheel (204) rotatably driven by a unidirectional rotational motor (26) to one of two or more selectable rotational positions, each of which rotational positions is effective to cause a single compression spring (56, 166) to urge an engagement member (64 and 66, 108) to axially move the shift member to one of the at least two selected positions.
Patent CA-1175310-A (CA)
Inventor: FERTELL PAUL A
IPC: C14C9/00
Filed: 1982-05-03
Granted: 1984-10-02
Abstract: IMPREGNATION OF LEATHER WITH POLYURETHANE DISPERSIONS     ABSTRACT         A method of preparing an impregnated leather composite is pro-vided.  A leather sheet, preferably a low density leather sheet, is impreg-nated with an aqueous ionic dispersion of a polyurethane polymer.  The polyurethane polymer which is impregnated in the leather sheet is ionically coagulated from the disparson.  The impregnate is dried to form an impreg-nated leather composition.
Patent CA-1162324-A (CA)
Inventor: JORDAN WILLIAM D
IPC: H05K7/20
Filed: 1982-06-01
Granted: 1984-02-14
Abstract: HEAT SINK MOUNTING     ABSTRACT OF THE DISCLOSURE           Disclosed are methods and apparatus for attaching a heat sink mounted semiconductor case to a circuit board employing a stud with a flange near one end.  The longer shank is threaded and at least the shorter shank or head stud is tin-plated.  The stud may be swaged into a mounting hole in the heat sink and the heat sink and semiconductor case pre-assembled.  The pre-assembled unit may then be mounted and soldered to the circuit board along with other circuit components.
Patent CA-1172243-A (CA)
Inventor: GARNER LLOYD L
IPC: E21B10/22
Filed: 1982-06-11
Granted: 1984-08-07
Abstract: ABSTRACT OF THE DISCLOSURE      Discloses a rotary bit bearing system for each cutter cone of a bit including ball bearings rotatably supporting the cone around a leg journal, a lateral sleeve bearing rotatably supporting the cone including a freely rotatably cylindrical composite sleeve bearing mounted between an inner bearing face and an outer bearing face.  The composite sleeve comprises a first cylindrical sleeve member, a second cylindrical sleeve member, and a spacer disc thrust member mounted in freely rotatable relation between the first and second sleeve members.  Also includes a disc thrust bearing rotatably supporting the cone to withstand axial forces in-cluding an external disc bearing, an internal disc bearing, and an intermediate disc bearing mounted in freely rotatable relationship between the external and the internal disc bearing with the intermediate disc bearing means including radial guide means to radially guide the internal and the external disc bearing.  All bearing surfaces may be provided with dis-similar metal in sliding contact.
Patent CA-1232450-A (CA)
Title: Dispositif d'affichage miniature a volets
Inventor: VUILLEUMIER RAYMOND
IPC: G09F9/37
Filed: 1982-06-30
Granted: 1988-02-09
Abstract: La présente invention se rapporte à un dispositif d'affichage comportant un support isolant (1) et des volets (V) susceptibles de tourner sous l'action d'un champ électrique (E) perpendiculaire au plan du support. Les volets (V) sont groupés par paires et sont commandés en appliquant une tension entre un volet et une contre-électrode (c). La commande peut être multiplexée si les volets d'une même paire sont soumis à des potentiels différents. Fig. 1
Patent CA-1196694-A (CA)
Inventor: TAKENAKA SHINYA
IPC: A61B18/20
Filed: 1982-07-05
Granted: 1985-11-12
Abstract: ABSTRACT OF THE DISCLOSURE          A laser knife is provided with a mechanism by which a plurality of specialized hand pieces may be detach-ably coupled to the front end portion of the optical fiber light path for the laser.  This mechanism uses an optical fiber as a light conducting path and the mechanism com-prises a hand piece detachably coupled to the front end portion of this optical fiber.  The hand piece is shaped so as to be able to confront a portion which is to be irradiated by the laser.  There is also a connector adapted to couple the hand piece to the optical fiber.
Patent CA-1191386-A (CA)
Inventor: BATESON JOHN E
IPC: B41J29/46
Filed: 1982-09-21
Granted: 1985-08-06
Abstract: PRINTER CONTROL SYSTEM WITH ERROR COUNT AVERAGING                Abstract of the Disclosure In a control system for a bidirectional printer capable of printing at different speeds on different lines and in which the actual velocity of the print carriage is compared with a desired velocity profile to generate an error count, the error count is measured and averaged out for each direction and speed of carriage movement to compensate for the effect of changes in the printer system dynamics such as aging, wear, debris buildup, etc.
Patent CA-1196749-A (CA)
Inventor: STEVENS HENRY C
IPC: C08F218/00
Filed: 1982-10-21
Granted: 1985-11-12
Abstract: Abstract Discloses a monomeric composition of a polyol(allyl carbonate) and a polyurethane having terminal acrylate functionality, and a polymer thereof.
Patent CA-1185311-A (CA)
Inventor: JAFFE MARY S
IPC: A61N5/06
Filed: 1982-10-22
Granted: 1985-04-09
Abstract: HEAT LAMP HAVING VISIBLE RADIATION BLOCKING COATING AND METHOD OF MAKING                ABSTRACT OF THE DISCLOSURE   A coating of iron oxide on the outside of a quartz heat lamp absorbs most of the blue and green radiation and provides a deep red color while passing infrared efficiently.  The coating may be applied to the com-pleted lamp by operating it and spraying it with ferric chloride solution until the desired coating thickness of iron oxide has been built up.
Patent CA-1221108-A (CA)
Inventor: COVITZ FRANK H
IPC: C07C43/00
Filed: 1982-12-15
Granted: 1987-04-28
Abstract: HEMIFORMALS OF PHENOL               ABSTRACT OF THE DISCLOSURE           There is described a liquid hemiformal of phenol characterized by the formula (I)           wherein n is a positive number greater than 1, said hemiformal being stable between about 35°C to about 55°C and curable to a phenolic resin in the presence of a phenol formaldehyde curing catalyst.  It is adaptable for use in liquid injection molding processes.
Patent CA-1200793-A (CA)
Title: Dispositif permettant de chauffer un aliment contenu  dans une boite de conserve
Inventor: APELLANIZ RAMON
IPC: C09K5/16
Filed: 1982-12-17
Granted: 1986-02-18
Abstract: Dispositif permettant de chauffer un aliment contenu dans une boîte de conserve, laquelle est entourée d'une enveloppe et de l'eau séparées par une paroi pouvant être aisément perforée ou déchirée, pour permettre le contact entre la chaux vive et l'eau. La chambre annulaire contient de la chaux vive dont la réactivité a été préalablement réduite, ainsi qu'une quantité d'eau supérieure à celle nécessaire pour la réaction d'hydratation de la chaux vive.
Patent CA-1191958-A (CA)
Inventor: SHENOI KISHAN
IPC: H03M3/00
Filed: 1983-01-19
Granted: 1985-08-13
Abstract: ABSTRACT OF THE DISCLOSURE A Delta-Sigma .DELTA..SIGMA. modulator for one-bit analog to digital conversion or a signal, such as a telephone voice channel signal to digital form is disclosed.  The circuit incorporates integration operative as low-pass filtering. The voice signal is sampled at a rate high compared to the highest voice channel frequency component.  Sampled in-stantaneous signal values are integrated, re-sampled and again integrated to reduce encoding noise.  Finally, a bi-level sense identifying circuit links the second integrator output to a D type flip-flop providing the one-bit encoded output.    The sampling and integrator control is elected by switching in a capacitor charge shifting arrangement under clock control and feedback is applied as a capacitor switch-ing program modification.
Patent CA-1200886-A (CA)
Inventor: VAN HEELSBERGEN TEUNIS R
IPC: G01S7/523
Filed: 1983-02-03
Granted: 1986-02-18
Abstract: PHN.10.264                  15                         5.11.82 ABSTRACT "Ultrasonic transmitter"         The transmitter comprises an array of electro-acoustic transducers (1), each of which is connected to an oscillator circuit (9) which has a start input (11). The start inputs (11) successively receive start signals from a start signal generator (13) which comprises a number of comparators (15), each of which comprises a first input (17) and a second input (19). The first inputs (17) are together connected to an output of a sawtooth generator (21), the second input (19) of each comparator (15) being connected to a direct voltage source (23). A direct voltage source (23) is provided for each start signal to be successively generated at least some of the direct voltage sources being controllable in common.
Patent CA-1183785-A (CA)
Title: Apparatus for centrifugal separation of a mixture  containing at least one gaseous phase
Inventor: SAGET PIERRE
IPC: B01D45/14
Filed: 1983-02-11
Granted: 1985-03-12
Abstract: IN THE CANADIAN PATENT AND TRADEMARK OFFICE            PATENT APPLICATION   entitled : Improved apparatus for centrifugal separa-tion of a mixture containing at, least one gaseous phase.            Applicant :   Pierre SAGET            ABSTRACT OF THE DISCLOSURE          Improved apparatus of the type comprising inside a fixed enclosure, a rotary assembly constituted by a treatment rotor with apertured discs angularly offset one with respect to the other, upstream by a rotary distributor and downstream by a fan with optional interposition of a rotary rectifier.           According to the invention, the apparatus comprises between the discs and the fixed part of the enclosure, means to partly at least annihilate the downstream leaks through the annular opening necessarily provided between the discs and the fixed part to allow the rotation of the rotary assembly. More partic-ularly, said fixed part is constituted by a stack; of truncated deflector plates which extend the discs, and on the edges of which are formed small blades constituting the leaks annihilating means.
Patent CA-1223564-A (CA)
Title: Container for mixing a liquid and a solid
Inventor: KAUFMAN STEPHEN
IPC: A61J1/00
Filed: 1983-03-30
Granted: 1987-06-30
Abstract: Abstract of the Disclosure A container (10) adapted for the mixing of a liquid and a solid initially placed in separate compartments (26, 30).  The compartment (30) containing the solid has two access ports (38, 40) so liquid can pass through the compartment carrying the solid with it for better mixing.
Patent CA-1217747-A (CA)
Inventor: WOUDEN ADRIAAN V D
IPC: B60R9/04
Filed: 1983-04-20
Granted: 1987-02-10
Abstract: ABSTRACT OF THE DISCLOSURE           A luggage carrier comprises a support rod and sup-port legs connected with the ends thereof, the support legs having fastening devices for fastening the luggage carrier to a vehicle, preferably the rain channel in the roof of the vehicle.  The support rod of the luggage carrier comprises at least two concentrically positioned portions which are concentrically displaceable in relation to each other for allowing adjustment of the length of the support rod and thereby the luggage carrier to be adapted to the width of the vehicle.  The support rod can be dismounted or pushed together to a space-saving position of the luggage carrier. The luggage carrier comprises a locking device for securing the portions of the support: rod in a desired relative posi-tion.  The securing device is constituted by two . tary securing means, each connected with separate portions of the support rod.  At least one of the locking means of the locking device is securable to the portion of the support rod belonging thereto to a desired position of the length of said portion of the support rod with regard to the desired relative position between the portions of the sup-port rod when the locking means of the locking device are in engagement with each other.
Patent CA-1230586-A (CA)
Inventor: LANGMAN WILLIAM F
IPC: E01B9/02
Filed: 1983-05-04
Granted: 1987-12-22
Abstract: A B S T R A C T      A rail insulating pad assembly comprises two pad portions arranged to be located one over each flange of a rail foot, the pad portions, when assembled, having an abutment interface zone which contains at least one capillary path interruption aperture.
Patent CA-1197498-A (CA)
Title: Ferroborosilicates cristallins et procedes de leur  preparation
Inventor: LEEN LAM S
IPC: C10G2/00
Filed: 1983-08-08
Granted: 1985-12-03
Abstract: Un borosilicate de fer cristallin comprend un tamis moléculaire dont la composition exprimée par les rapports molaires des oxydes est la suivante: 1.0 ? 0.3 Mn/2O; (aFe2O3 : b B2O3) : Y SiO2 . z H2O où M est au moins un cation de valence n, a est plus grand que O mais plus petit que 1, b est plus grand que O mais plus petit que 1, de façon à ce que a + b = 1, y est un nombre au moins égal à 6, z est un nombre qui varie entre O et environ 500, le produit présentant un diagramme de diffraction des Rayons-X spécifique. Le borosilicate de fer cristallin est utilisé pour la catalyse de divers procédés, notamment la conversion des alcools simples en essence de pétrole à haut indice d'octane, et pour l'hydrogénation catalytique du monoxide de carbone afin de produire des hydrocarbures liquides à haut indice d'octane. La préparation des borosilicates de fer est aussi divulguée.
Patent CA-1209076-A (CA)
Inventor: HUIBERS DERK T A
IPC: C10G1/08
Filed: 1983-08-25
Granted: 1986-08-05
Abstract: ABSTRACT OF DISCLOSURE     A process for two-stage hydrogenation of coal to produce increased yields of hydrocarbon liquid and gas products.  In the  process,  the  particulate  coal  is  fed at  temperature below about 650°F into a first stage catalytic reaction zone to maintain a temperature therein at 750-800°F and 1000-5000 psig hydrogen partial pressure.   The partially hydrogenated material  from  the  first  stage  reaction  zone is  phase separated and the liquid fraction is passed to the second stage reaction zone maintained at 800-860°F temperature for further predominately thermal hydrocracking reactions.   By this  process,  the  coal  feed  is heated  quickly and  suc-cessively  catalytically  hydrogenated  and  hydrocracked  at selected conditions, which results in minimal production of undesirable  residuum  and  unconverted  coal  or  char  and increased yields of desirable hydrocarbon liquid products, while catalyst life is increased.
Patent CA-1178322-A (CA)
Inventor: BILLINGS PHILIP A
IPC: H05F3/02
Filed: 1983-09-14
Granted: 1984-11-20
Abstract: ABSTRACT OF THE DISCLOSURE A printing machine includes at least two grounded carbon fiber brush static eliminators mounted in a molded plastic baffle assembly that optimizes discharge characteristics. The eliminators are mounted such that one brush contacts sheets moving through the machine while the other brush remains out of contact with the sheets in order to minimize fluctuations in static reductionover machine life.
Patent CA-1201175-A (CA)
Title: Torche de travail a l'arc munie d'une coiffe amovible
Inventor: MARHIC GERARD
IPC: F23D14/52
Filed: 1983-09-30
Granted: 1986-02-25
Abstract: Pour éviter que l'opérateur puisse toucher l'électrode sous tension, l'extrémité libre de la torche est pourvue d'une coiffe constituée d'une part d'une jupe de protection, d'autre part d'un étrier basculant articulé sur cette jupe qui s'encliquette sur le corps de torche en fermant un circuit électrique faisant partie du circuit de sécurité de la torche. Application aux torches manuelles de coupage plasma.
Patent CA-1195090-A (CA)
Inventor: HEGEMANN KARL-RUDOLF
IPC: C01F11/46
Filed: 1983-10-31
Granted: 1985-10-15
Abstract: ABSTRACT OF THE DISCLOSURE          Calcium sulfate dihydrate in large crystal form is produced by maintaining the circulation of the lime containing scrubbing solution in the desulfurization scrubbing of flue gases from a power plant boiler so that it has a residence time of 5 to 25 hours, preferably 15 hours.  The crystals are moved by passing a portion of the recirculation through a thinner in which a sludge containing crystals with a mean particle size of which 90% is in excess of 100 microns is removed.  This product can be dewatered and treated with sulfuric acid and steam to convert it to the alpha semihydrate and is free from sulfite.
Patent CA-1207547-A (CA)
Inventor: GROENWOLD BARELD E
IPC: A01N39/02
Filed: 1983-11-24
Granted: 1986-07-15
Abstract: SYNERGISTIC HERBICIDAL COMBINATION                    Abstract of the Disclosure A mixture of the herbicides napropamide (2-(.alpha.-naphthoxy)-N,N-diethylpropionamide) and butam (N-benzyl-N-isopropylpivalamide) has been found to exhibit synergistic results, particularly in pre-emergence surface application or pre-plant incorporation, and for controlling weeds in the presence of a rapeseed crop.
Patent CA-1222385-A (CA)
Inventor: MORITA MITSURU
IPC: F25B1/00
Filed: 1983-11-30
Granted: 1987-06-02
Abstract: Abstract of the Disclosure In a refrigerating apparatus comprising a rotary compressor, a fluid-controlled valve is inserted in the path between a condenser and a evaporator and a reverse flow check valve is inserted between the evaporator and a suction line connected to the input port of the rotary compressor.          Unwanted heat load caused by flow of high pressure refrigerant into the evaporator, then the rotary compressor stops, is thereby eliminated.
Patent CA-1215802-A (CA)
Inventor: SELIN JOHAN
IPC: C08J3/05
Filed: 1983-12-07
Granted: 1986-12-30
Abstract: CELLULOSE CARBAMATE SOLUTIONS     ABSTRACT OF THE DISCLOSURE        The invention relates to cellulose carbamate solutions having improved capacity for fiber spinning or film formation therefrom.  The addition of urea to the aqueous alkali in which the cellulose carbamate is dissolved results in an increase in the amount of cellulose carba-mate that can be dissolved and a decrease in the viscosity and clogging number of the solution as compared to such solutions without urea.
Patent CA-1200332-A (CA)
Inventor: FRIZLEN HANS-JOERG
IPC: H04L/
Filed: 1983-12-29
Granted: 1986-02-04
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a method and apparatus in a telecommunication system for activation of means from idling state to active state.  The system includes a digital sub-scriber connection in which there is included a line terminal assigned to the station side of the system, a network terminal assigned to the subscriber installation and one or more sub-scriber terminals.  The line terminal is connected to a central clock pulse oscillator (master  oscillator) on the station side, the network terminal and subscriber terminals con-taining local clock pulse oscillators (slave oscillators). Activation can take place either from the subscriber side or the station side of the connection.   In activation  from the subscriber side there first occurs a temporary synchroni-zation of the clock rate in the network terminal to the rate from the subscriber terminal local clock.  The network terminal is also activated temporary from the subscriber side.  After the activation order from the station side has been received in the network terminal, the clock rate of the network terminal is finally synchronized to the rate from the central clock pulse oscillator, there furthermore being achieved a final activation of the network terminal logic circuits.  In a similar way the clock rate in the subscriber terminal is synchronized to the rate from the master clock of the line terminal, and there is furthermore obtained a final activation of the circuit logic of the subscriber terminal.  No activation request from the subscriber is detected in activation from the station side.  The activation order goes directly from the station to the line terminal, the activation sequence otherwise agreeing with what has been described for activation from the subscriber.
Patent CA-1225854-A (CA)
Inventor: GLOCK GASTON
IPC: F41C3/00
Filed: 1984-01-27
Granted: 1987-08-25
Abstract: ABSTRACT There is described a pistol, the breach of which is provided with a firing pin that can be driven by a firing pin spring or a hammer that is acted upon by a hammer spring.  The firing mechanism has a stop that protrudes into the path of movement of a lug of the firing pin or of a shoulder of the hammer and which is connected to the trigger by means of a slide piece.  In its foremost end position the slide piece is locked in the firing direction and secures the firing pin or hammer with a partially compressed firing pin spring or hammer spring.  On operation of the trigger the slide piece withdraws the stop with a simultaneous compression of the firing pin spring or hammer spring into its unlocked position and moves the stop in the firing direction, whereupon  the guide, which determines the path of the stop during the cocking movement, secures the protrusion of the stop into the path of movement of the lug of the firing pin or the shoulder of the hammer.