baber/WOPTO huggingface dataset:
Patent CA-1279900-C (CA)
Title: Amplitude modulated broadcast transmitter
Inventor: KYRIAN BOHUMIL
IPC: H03C1/06
Filed: 1987-11-09
Granted: 1991-02-05
Abstract: ABSTRACT         In an AM broadcast transmitter having a switching amplifier as main modulator (12), an additional modulator (18) is used in the radio frequency circuit in order to achieve a steady 100 % modulation at the modulation mini-ma, with the aid of which additional modulator the car-rier signal is also modulated at the modulation minima. The LF signal needed for controlling the additional modu-lator (18) passes through a delay circuit (16) and a cor-rection circuit (17).
Patent CA-1294323-C (CA)
Title: Dc to dc converter current pump
Inventor: WARD MICHAEL A V
IPC: H02M3/24
Filed: 1987-11-13
Granted: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE           A simplified current pump or SCP DC-DC power converter includes in series with a voltage power supply PS at least one electrical current controlling and/or limiting means ECC, energy storage and switching capaci-tor of capacitance CO, electrical transformer means T with at least one secondary winding TS and with a primary winding TP with a selected secondary winding TS to primary winding TP turns ratio N.  A shunt switch SS is connected to ground with a shunt diode across it, switch SS being connected from ground to a point P between the ECC and the capacitor CO.  An output diode comprising at least one diode defined as the charging diode is connected between a high side point S of one secondary winding TS of the transformer T and an elec-trical load in a direction which allows the  charging diode to conduct current to the load when the shunt switch SS is switched ON.
Patent CA-1287972-C (CA)
Inventor: LEGARE MARCEL
IPC: G01B3/10
Filed: 1987-11-17
Granted: 1991-08-27
Abstract: ABSTRACT              The present invention relates to a tape measuring device comprising a graduated tape wound into a housing on which is mounted a holder for a marking device such as a pen or pencil.  The holder comprises an arm hingedly mounted to the housing of the tape measuring device and defining a seat for receiving the pen or pencil such that the marking tip of the pen or pencil extends adjacent a longitudinal edge of the graduated tape when the latter is pulled from the housing.
Patent CA-1301585-C (CA)
Title: Aqueous detergent compositions containing diethyleneglycol monohexyl ether solvent
Inventor: KACHER MARK L
IPC: C11D3/00
Filed: 1987-11-23
Granted: 1992-05-26
Abstract: Abstract Aqueous detergent compositions comprising an organic synthetic surfactant, a water-soluble detergency builder and diethyleneglycol monohexyl ether solvent. These compositions are used for cleaning hard surfaces, such as floors, walls, bathroom tile, etc.
Patent CA-1309955-C (CA)
Title: Plastic container with multilayer label applied by in-mold labeling
Inventor: HEIDER JAMES E
IPC: B65D25/34
Filed: 1987-11-25
Granted: 1992-11-10
Abstract: PLASTIC CONTAINER WITH MULTILAYER LABEL APPLIED BY IN-MOLD LABELING     Abstract of the Disclosure A plastic container having a multilayer label applied by in-mold labeling during the blow molding of the plastic container.  The label comprises a non-cellular inner layer, an intermediate cellular layer compatible with the inner layer and heat bonded to the inner layer, and an outer non-cellular plastic layer compatible with the intermediate cellular layer and heat bonded thereto.  The label is positioned in a mold cavity with the outer layer in contact with the mold.  When a hot plastic parison at molding temperature is expanded by fluid pressure against the walls of the mold to form a container, the non-cellular inner layer becomes bonded to the outer surface of the container by heat from the container.     -i-
Patent CA-1276219-C (CA)
Title: Energy saving control circuit for hot water heater
Inventor: STIPE LESTER E
IPC: H05B1/02
Filed: 1988-01-08
Granted: 1990-11-13
Abstract: ABSTRACT OF THE DISCLOSURE    A hot water heater  having  upper and lower electric heating  elements  and  associated  thermostatic   switch controls  in  their electric circuits is provided with an energy saving control  circuit  for maintaining the lower heating element deenergized at all times except  when  it is needed to assist the upper heating element to heat the entire contents of the hot water heater tank.  The energy saving  control  circuit includes an energy saving switch in the electric circuit of  the lower heating element.  A full tank relay switch is connected in parallel with  the energy saving switch and the relay coil is connected to a transformer  secondary  winding through a holding circuit provided by a holding relay  switch  the coil of which is connected  to  the  transformer   secondary   through   a momentary  make  switch.  The holding relay switch serves to maintain  the  holding  relay  coil connected  to the transformer secondary after the momentary make switch  is opened.   The transformer primary winding is connected to a source of  electric  potential  through a photoelectric cell which is activated by light to open the  circuit  of the  transformer  primary.   A neon lamp light source for the photoelectric cell is  connected  to the lower heater thermostatic switch in such manner as to connect the neon lamp to the electric supply for the lower heater  element when the thermostatic switch is opened upon attainment of a  preselected  water  temperature  sensed  by  the lower heater thermostat.
Patent CA-1296196-C (CA)
Title: Knitted fabric having improved electrical charge dissipation and absorption properties
Inventor: BRYANT KENNETH G
IPC: D04B1/00
Filed: 1988-02-05
Granted: 1992-02-25
Abstract: ABSTRACT                A knitted fabric having improved electrical charge dissipation, absorption, stain resistance, anti-pilling and linting and tensile strength properties, constructed so as to form a conductive matrix capable of discharging an electrical charge along any direction of the course and wale of the fabric.
Patent CA-1320768-C (CA)
Title: Derivatives of tricyclo-[5.2.1.0 , ]-dec-3-ene as frothers in the flotation of coal and ores
Inventor: BIERMANN MANFRED
IPC: B03D1/02
Filed: 1988-03-04
Granted: 1993-07-27
Abstract: ABSTRACT OF THE DISCLOSURE      Derivatives of tricyclo-[5.2.1.02,6]-dec-3-ene corresponding to the following general formula   (I) in which R1 is hydrogen; a linear or branched C1-C8 alkyl radical; an  acyl  radical  R2-CO,  where  R2  is  hydrogen  or  a  linear  or branched C1-C18 alkyl or alkenyl radical; or a hydroxyalkyl radi-cal   in which R3 and R4 independently of one another may be hydrogen or a hydroxy group and m and n are integers of 0 to 5 and the sum (m + n) is an integer of 1 to 5, with the proviso that at least one of the radicals R3 and R4 is a hydroxy group; are used as frothers in the flotation of coal and ores.
Patent CA-1290196-C (CA)
Title: Enclosure frame for facing a wall opening
Inventor: BURGERS AUGUST
IPC: E06B1/62
Filed: 1988-05-04
Granted: 1991-10-08
Abstract: Abstract of the Disclosure An enclosure frame that is to be placed in a wall opening for a door or the like.   The frame comprises a liner that is disposed in the wall opening, and at least one casing that is disposed on an edge of the liner, extends at right angles to the latter, and is also disposed on a wall surface. for mounting an edge strip, that end of the casing remote from the liner is provided with a retaining strip.  The latter has a mounting leg that rests on a wide side of the casing and is secured thereto.          The retaining strip also has an insertion leg that extends from the casing at right angles to the wide side thereof.   The edge strip has an inner side that faces the wall surface and is provided with a longitudinally extending,  slot-like recess into which the insertion leg of the retaining strip can be introduced in a self-clamping manner.  The edge strip also has a channel for receiving the mounting leg of the retaining strip and for covering  the same from sight.
Patent CA-1302142-C (CA)
Title: Means for securing a covering closing an opening
Inventor: FERNS DEREK LORD LIGHTHORNE OF
IPC: E02D29/14
Filed: 1988-05-30
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE            On a covering for an opening comprising a frame and a cover or grating, on the latter is provided an elastically deformable, rod-like closing member, which forms one part of a locking device, the other part thereof being a retaining member, which is a groove provided in frame, in which can engage a closing finger located on closing member, accompanied by the elastic deformation of the closing member. Thus, in simple manner, the cover or grating is positively secured in frame.
Patent CA-1301997-C (CA)
Title: Catalysis of ester interchange reaction
Inventor: SWEENY WILFRED
IPC: C08G63/83
Filed: 1988-06-02
Granted: 1992-05-26
Abstract: TITLE Catalysis of Ester Interchange Reaction ABSTRACT Polyester formation is catalyzed by an alkali metal fluoride other than lithium fluoride.     SPEC.II-1.2
Patent CA-1323186-C (CA)
Inventor: GACKA MARK
IPC: B05B5/03
Filed: 1988-07-05
Granted: 1993-10-19
Abstract: Abstract of the Disclosure A  powder  spray  gun  for use  in  spraying particulate  powder material of  different  colors  is constructed of a number of individual parts which are quickly and easily disassembled from one another so that each part which comes into contact with particu-late powder material can be individually cleaned in changing over from one powder to another.  The powder spray gun comprises a mounting block which carries a rearward barrel member and a powder  inlet tube,  a forward barrel member connected to the rearward barrel member, a nozzle and pattern adjustment sleeve both carried on the forward barrel member and an electro-static cable assembly received within a barrel liner which extend axially along the length of the spray gun.  All but one of the connections between these parts are made by O-rings which frictionally engage facing surfaces of the parts so that they are easily pulled apart, cleaned by a jet of air or the like and then reassembled in preparation for spraying another color of particulate powder material.
Patent CA-1305379-C (CA)
Inventor: TODD GARY J
IPC: F41B5/18
Filed: 1988-08-03
Granted: 1992-07-21
Abstract: BOW STRING RELEASE DEVICE                       ABSTRACT        A hand-held, trigger-actuated bow string release device has an elongate transversely flexible hand grip member coupled to and extending rearwardly from the rearward end of the body of the device.  The hand grip member is coupled at its rearward end to a plate-like abutment member transverse to the longitudinal extent of the grip member so that when the grip member is gripped within a user's hand, the abutment member seats against the outer edge of the hand to prevent the grip member from being pulled forwardly from the hand as the grip member is longitudinally tensioned during drawing of the bow.  The rearward end of the body is inclined with respect to the forward end of the body to provide ease of access to the trigger during use of the device.
Patent CA-1314225-C (CA)
Title: Controlled release agent for cetylpyridinium chloride
Inventor: FRIEDMAN ROBERT B
IPC: A61K47/48
Filed: 1988-08-04
Granted: 1993-03-09
Abstract: CONTROLLED RELEASE AGENT FOR CETYLPYRIDINIUM CHLORIDE     Abstract of the Disclosure A complex of cyclodextrin and cetylpyridinium chloride is disclosed as a controlled release agent of cetylpyridinium chloride.  The cyclodextrin can be either cyclodextrin molecule, a polymer of cyclodextrin or modified cyclodextrin.  The method of forming the complex is also disclosed.
Patent CA-1318121-C (CA)
Title: Inhibition of hydrate formation
Inventor: MATTHEWS ROBERT R
IPC: C09K8/52
Filed: 1988-09-15
Granted: 1993-05-25
Abstract: Abstract of the Disclosure Stoppage of gas-water streams due to the formation of gas hydrates is prevented by incorporating in such streams a surface active agent which inhibits the formation of gas hydrates and/or the agglomeration of hydrate crystallites into large crystalline masses.
Patent CA-1289449-C (CA)
Inventor: PERIOU PIERRE
IPC: B60N2/06
Filed: 1988-10-03
Granted: 1991-09-24
Abstract: SCREW JACK SAFE AGAINST OVERLOAD FOR A MOVABLE ELEMENT SUCH AS A SEAT STRUCTURE                        ABSTRACT     The jack (V) comprises a tubular primary screw (10) movable in rotation and translation and provided with an outer screw thread (10a) and an inner screw thread (10b) which have opposite thread hands, a fixed secondary screw (11) engaged in the inner screw thread (10b), a nut (9) connected to the movable element and engaged with the outer screw thread (10a) of the primary screw (10).  The nut (9) is composite and comprises a first nut (9a) composed of a plastics material having a good coefficient of friction and a second nut (9b) composed of a mechanically strong material.  Axial forces of normal amplitude are absorbed by the plastics nut (9a), while the exceptional overloads, resulting for example from an impact on the front of a vehicle whose seat structure is provided with the jack of the invention, are absorbed by the second nut (9b).  In normal operation, the friction between the plastics, nut (9a) and the screw (10) are considerably reduced, which provides a jack having an excellent efficiency.     Fig. 2
Patent CA-1336587-C (CA)
Title: Device for injecting hydrocarbon loading in a catalytic cracking reactor
Inventor: WILLIATE CHRISTOPHE
IPC: C10G11/18
Filed: 1988-10-13
Granted: 1995-08-08
Abstract: Device for injecting a hydrocarbon feedstock into a catalytic cracking reactor, comprising, from upstream towards downstream in the direction of travel of the feedstock, a system (5) for allowing to enter and mixing the liquid hydrocarbon feedstock and steam, a venturi (6) whose converging cone (10) is connected to the said system (5) for allowing to enter and mixing, and a protective hood (7) integrally attached to the diverging cone (14) of this venturi and having an orifice (16) for injecting the feedstock into the reactor. 
<??>The dimensions of the venturi (6) are such that the speed of mixing of the liquid feedstock and of steam therein reaches sonic conditions at the neck (13) and the rectilinear neck situated between the divergent cone (14) and the convergent cone (10) is connected to the latter in a continuous manner by a curved profile in the form of an angle greater than 5 DEG  and approximately 15 DEG  respectively with the axis of the venturi. 
<IMAGE>
Patent CA-1333192-C (CA)
Inventor: BERRY RICHARD C
IPC: H02G3/06
Filed: 1988-12-22
Granted: 1994-11-22
Abstract: An explosion-proof electrical conduit sealing fitting for threadedly engaging at least two threaded conduits and surrounding at least one conductor running through said at least two threaded conduits includes a first element having a portion threadedly engaging at least one of at least two threaded con-duits; a second element having a portion threadedly engaging at least one of the at least two threaded conduits, and means for connecting the first element and the second element.  When proper-ly connected and screwed into place, the sealing fitting of the present invention completely surrounds the at least one conductor and threadedly engages all of at least two threaded conduits.
Patent CA-1329409-C (CA)
Inventor: WILKINSON IVAN E
IPC: H01H1/18
Filed: 1989-01-19
Granted: 1994-05-10
Abstract: ABSTRACT OF THE DISCLOSURE    A switch assembly for a geared limit switch for valve actua-tors is formed from aligned switch modules.  The switch modules includes a pair of switch units, each switch unit having a plunger and a movable contact plate mounted between two springs. As the plunger is driven inward, a camming element on the plunger contacts an edge of an aperture in the movable contact plate, forcing the plate to move in a direction perpendicular to the line of plunger travel.  The inward motion of the plunger and the camming action continue after the contacts have closed, wiping the contacts mounted on the movable plate across the surfaces of the stationary contacts.  When the plunger is released, an outer edge of the movable plate engages a beveled inner wall of the switch unit housing, returning the movable contact plate to its original position.
Patent CA-1339338-C (CA)
Title: Composition and a process for inducing binding between parts of living mineralized tissue
Inventor: HAMMARSTROEM LARS
IPC: A61K6/00
Filed: 1989-03-16
Granted: 1997-08-19
Abstract: A composition for use in inducing binding between parts of mineralized tissue by regeneration of mineralized tissue on at least one of the parts, containing as an active constituent a protein fraction originating from a precursor to dental enamel, so called enamel matrix and a process for inducing binding between parts of living mineralized tissue by regeneration of mineralized tissue on at least one of the parts using such composition, are described.
Patent CA-1325072-C (CA)
Title: Transformateur sec a enroulements enrobes, conducteurs et installations electriques analogues, et procede de preparation de leur resine d'enrobage
Inventor: PIDANCET BRIGITTE
IPC: C08K3/38
Filed: 1989-04-18
Granted: 1993-12-07
Abstract: TRANSFORMATEUR SEC A ENROULEMENTS ENROBES, CONDUCTEURS ET INSTALLATIONS ELECTRIQUES ANALOGUES, ET PROCEDE DE PREPARATION DE LEUR RESINE D'ENROBAGE. Selon l'invention, une substance ignifuge par formation d'eau, telle que de l'alumine trihydratée, est incorporée à résine d'enrobage, en proportion adéquate d'au moins 20% du poids total de la résine, cette substance ayant été préalablement partiellement deshydratée, par chauffage, jusqu'à une perte en poids pouvant se situer entre 0.5 et 10 % environ du poids initial, de manière à éviter, lors de la mise en service de l'appareil à sa température de fonctionnement normal "à chaud", une formation intempestive d'eau pouvant préjudicier à la ténue de la résine d'enrobage. L'invention améliore ainsi la tenue au feu des installations électriques en accroissant, à leur température de service, la stabilité thermique de la résine d'enrobage. L'invention s'applique préférentiellement aux transformateurs secs de puissance et de distribution de l'électricité.
Patent CA-1311274-C (CA)
Title: Detector unit with auxilliary battery
Inventor: MARAM MORRIS
IPC: H02J7/35
Filed: 1989-04-18
Granted: 1992-12-08
Abstract: ABSTRACT OF DISCLOSURE            A detector unit for use in detecting unauthorised intrusion  into  homes,  offices,  factories  and other buildings is described.  The detector unit comprises a detector such as a passive infrared detector and a radio frequency transmitter that is connected to the detector and that transmits a detector signal when the detector is actuated, and  battery means.    Two  batteries  power  the detector and the transmitter.   A power control means is arranged so that when the power of the said first battery drops below a certain minimum the second battery is connected to the detector and the transmitter. A warning is given at the main control  unit  that  the  second  battery  is being used so that the user can now replace both batteries.
Patent CA-1334808-C (CA)
Inventor: ARORA VIJAY K
IPC: A23F5/28
Filed: 1989-07-28
Granted: 1995-03-21
Abstract: A thin, transparent coffee glass is disclosed which is prepared by forming a mixture containing above 4% to 12% water and about 88% to above 96% total coffee derived solids.  These solids can further contain up to 20% hydrolyzed mannan and oligomers having a DP from 1 to 10 and up to 10% coffee cellulosic sugars.  The coffee melt is characterized by having a glass transition temperature between 30°C to 80°C.  The coffee melt is heated to a temperature of 60°C to 130°C and extruded into a thin continuous film, stretched to further form a thin film which is rapidly cooled into a hard coffee glass which is shiny on both sides, dark in color and transparent.  This transparent glass is then dried to a stable moisture content.  The coffee glass provides a shiny appearance to any coffee product it is combined with and is an excellent means of entrapping and protecting coffee aromas.  Furthermore, the coffee glass provides a means for shaping numerous new coffee products.  The thin flakes of coffee glass disolve rapidly.
Patent CA-1329101-C (CA)
Inventor: HEILE BERNARD J
IPC: C11D3/37
Filed: 1989-08-24
Granted: 1994-05-03
Abstract: Abstract A  solid  heavy  duty  laundry  detergent  composition having a zero phosphorus content is disclosed that has the capability of effectively conditioning service water.  The detergent composition comprises a source of alkalinity, a water-conditioning  vinyl  polymer  with  pendant  carboxyl groups, a water-conditioning copolymer of acrylic acid and itaconic acid, and at least one nonionic surfactant.
Patent CA-1320433-C (CA)
Title: Above packer perforate, test and sample tool and method of use
Inventor: ZUNKEL GARY D
IPC: E21B34/10
Filed: 1989-08-30
Granted: 1993-07-20
Abstract: Abstract An above packer perforate, test and sample tool for use in obtaining a sample of fluid from a formation reservoir in a well.  The apparatus includes a sampler and an actuator cylinder positioned above a packer and a valve body below the packer.  An operating mandrel opens a valve below the packer to flow the fluid from a well annulus defined below the packer to a sampling chamber in the sampler above the packer.  The operating mandrel is moved in response to a pressure differential between the pressure in the well annu-lus above the packer and a pressure in the tool.  In another embodiment, a second packer may be positioned below the first packer to sealingly engage the well bore below the well formation.  A method of sampling fluid from a well for-mation is also disclosed.
Patent DK-162387-C (DK)
Inventor: WINKEL JENS
IPC: A61K6/884
Filed: 1986-06-19
Granted: 1992-03-09
Abstract: The invention relates to novel (meth)-acrylic acid derivatives of tricyclodecanes of the formula   <IMAGE>   in which R1 and R2 are identical or different and denote hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl and R3 and R4 are identical or different and represent the groups.   <IMAGE>  in which X is a divalent bridge member comprising the group   <IMAGE>  and Y is a linear or branched hydrocarbon chain which has 2 to 10 carbon atoms and can optionally contain oxygen bridges and is optionally substituted by 1 to 4 acrylate or methacrylate radicals, and R5 represent hydrogen or methyl and R6 represents hydrogen, lower alkyl or phenyl and to their use in dental compositions.
Patent DK-154931-C (DK)
Inventor: TINKELENBERG ARIE
IPC: C08G18/54
Filed: 1980-09-04
Granted: 1989-06-05
Abstract: The invention concerns the production of particle board with a very substantially lowered formaldehyde emission as well as suitable binding agents.According to the invention the binding agent used in the production of the board is a combination of a polyisocyanate with a aminoplast resin containing 0.25 to 0.625 moles of formaldehyde per mole equivalent of aminogroups. The particle boards thus obtained possess satisfactory mechanical properties and a strongly reduced formaldehyde emission.
Patent DK-149459-C (DK)
Inventor: PETERSEN OLFERT HELGE
IPC: G01N33/12
Filed: 1979-10-08
Granted: 1987-01-12
Abstract: The measurement required for the determination of density is effected by means of a chamber (6) which is substantially filled with the material and into which a displacement member (5) is slidingly introduced through a hole in the wall of the chamber (6), said displacement member (5) having a considerably smaller cross sectional area than the chamber (6). The displacement member (5) is introduced so far into the chamber (6) that the force of introduction applied reaches a predetermined value, and then the length of penetration of the member (5) is recorded. An apparatus for carrying out said method comprises a chamber (6) having a well through which the displacement member (5) of smaller cross sectional area than the chamber (3) may be introduced, said displacement member (5) being connected to means (3, 16) for pressing the unit into the chamber and connected to means (9, 10) for indicating the length of penetration.