baber/WOPTO huggingface dataset:
Patent CA-1305573-C (CA)
Title: Process of forming a refractory mass and mixture of particles for forming such a mass
Inventor: MOTTET LEON-PHILIPPE
IPC: C04B35/66
Filed: 1987-04-30
Granted: 1992-07-21
Abstract: ABSTRACT          PROCESS OF FORMING A REFRACTORY MASS AND MIXTURE OF           PARTICLES FOR FORMING SUCH A MASS     A process of forming a coherent refractory mass  on a surface comprises projecting  against that surface,  toge-ther with oxygen, a mixture of refractory particles and fuel which reacts  in an  exothermic  manner with  the  projected oxygen to  release  sufficient heat  to  melt at  least  the surfaces of  the  refractory  particles and  thus  form  the refractory mass.  The  projected mixture contains, as  fuel, finely divided particles  of at least  one element which  is oxidisable to form a refractory  oxide and it also  contains carbonaceous particles which are of such a size or  composi-tion that carbon particles  become occluded  in the  formed refractory mass.         The mixture  may  contain,  as said  fuel,  finely divided particles having a mean grain size of less than 50µm of silicon, aluminium and/or magnesium. The carbonaceous particles may comprise a carbonaceous  core which is covered  by a  mantle inhibiting  oxidation of  the core.         The mixture may  further contain particles  compri-sing a core of at  least one element which is oxidisable  to form a refractory oxide which is covered by a mantle inhibi-ting oxidation of the core.         Suitable mantle materials include metallic  oxides, nitrides and carbides.
Patent CA-1287334-C (CA)
Title: Metering and dispensing device for the packing of liquid products
Inventor: TORTEROTOT ROLAND
IPC: G01F11/04
Filed: 1987-06-05
Granted: 1991-08-06
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to the packing of liquid  products, A piston, moving inside a cylindrical metering chamber,  introduces successive  quantities  of  liquid in pots  via  a  tubular  nozzle vertically  movable,  which can be entirely  retracted  inside  the dispensing  chamber and which is equipped with a  truncated  bubble trap for eliminating the gases issued from the liquid.
Patent CA-1291959-C (CA)
Title: Keyboard assembly and typing method
Inventor: LILJENQUIST DONALD C
IPC: G06F3/023
Filed: 1987-09-18
Granted: 1991-11-12
Abstract: ABSTRACT      An improved keyboard assembly and method for typing for use with a device for processing symbolic information, such as a word processor, is disclosed herein.  Generally, the improved keyboard assembly comprises a plurality of mutually adjacent keys, each of which is substantially covered by a visual pattern formed from a combination of shape and coloring.  The visual pattern on each key is manifestly different from the visual pattern on each adjacent key in order to facilitate visual  discrimination between  keys. However, the visual patterns on keys in the same rows or columns share at least one distinctive design feature in order to assist the operator in properly orienting his or her hands over the keyboard.  To further enhance both key discrimination and proper manual orientation over the keyboard, keys on every other row have different surface textures to provide distinctive tactile signals to the keyboard operator whenever the different-textured keys are touched. Finally, the keyboard assembly may include a document positioner located just above the keyboard so that the keyboard operator may peripherally see the visual patterns on the keys when looking at a document being copied.  In the typing method of the invention, the visual pattern associated with each symbol typed is simultaneously displayed in order to reinforce the association of the symbol and the pattern in the mind of the operator.   The improved  keyboard assembly greatly expedites the learning of typing skills and reading skills by associating a distinct visual pattern with each letter of the alphabet in the mind of the operator.
Patent CA-1315999-C (CA)
Title: Refrigerant metering in a variable flow system
Inventor: VOORHIS ROGER J
IPC: F25B41/06
Filed: 1987-09-25
Granted: 1993-04-13
Abstract: REFRIGERANT METERING IN A   VARIABLE FLOW SYSTEM      ABSTRACT OF THE DISCLOSURE            In a refrigeration system having a compressor driven by a variable speed motor, the refrigerant flow volume through the expansion device is controlled by way of a solenoid driven piston which alternately opens and closes the orifice, with the duty cycle of the solenoid being controlled such that the time period in which the orifice is open is proportional to the speed of the motor.  A bypass channel is provided in parallel around the orifice such that a minimal flow is provided to thereby share the load with the modulating orifice and act to dampen the movement of the solenoid piston.
Patent CA-1291439-C (CA)
Title: Scraper device for fitting to a conveyor belt
Inventor: SLIKKER DICK
IPC: B65G45/00
Filed: 1987-10-23
Granted: 1991-10-29
Abstract: Abstract Scraper device for fitting to an endless conveyor belt or similar device, consisting of a set of scraper elements (1, 1') supported by an elongate carrier member the scraper elements (1, 1') being mounted on at least one bar-like member (2, 2') which extends parallel to the carrier member and rests on the upper face of the carrier member, and which is fastened relative to the carrier member by means of detachable fastening means (8, 9; 10, 11, 12) which are mounted at the ends of the bar-like member. Preferably the fastening means are formed by at least one pin (9) projecting from a side edge of the carrier beam (7) and at least one recess formed in the bar-like member (2, 2') in which recess said pin is received and by an upstanding flange (10) which is provided with an opening and which lies next to a flange formed on the carrier beam and provided with an opening, and by a securing means inserted through the coinciding openings in the flanges.
Patent CA-1313880-C (CA)
Inventor: KITAYAMA RYUICHI
IPC: C07C233/47
Filed: 1987-11-27
Granted: 1993-02-23
Abstract: ABSTRACT    A packing material for liquid chromatography, which comprises an optically active compound having the formula:                     (I) wherein Ar is a phenyl group, an a-naphthyl group or a .beta.-naphthyl group, R1 is an alkyl group having from 1 to 4 carbon atoms, a phenyl group or a 3,5-dinitrophenyl group, R2 is an alkyl group having from 1 to 4 carbon atoms, * indicates an asymmetric carbon atom and n is an integer of 2 or 3, as a stationary phase.
Patent CA-1292361-C (CA)
Title: Aquapot
Inventor: BAUMGARTNER NORBERT
IPC: A01G9/00
Filed: 1988-01-14
Granted: 1991-11-26
Abstract: ABSTRACT An upwardly open receptacle for plants includes a bottom wall, a reservoir adjacent the receptacle and having an opening at the bottom in communication with a membrane in the bottom of the receptacle, and a compartment in operative relation with the reservoir.          The compartment has a first conduit communicating the atmosphere with a first location within the compartment, and a second conduit communicating a second location within the compartment with the location in the reservoir adjacent the lower region of the receptacle.          The second location is above the first location.  The compartment is adapted to contain liquid to a level between the two locations, and is sealed from the atmosphere except for the first-mentioned conduit.
Patent CA-1301205-C (CA)
Title: Shingling of delicate conveyed sheet material
Inventor: MARSCHKE CARL R
IPC: B65H29/66
Filed: 1988-02-24
Granted: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE           A vacuum shingler for a plurality of sheets traveling in succession through an upstream infeed nip is provided with a vacuum modulating control which applies sheet slow-down forces primarily to only the tail ends of the sheets.  The control modulates the vacuum so that it is at a basically unshingling low or reduced level when the leading end portion of the sheet is adjacent the opening(s), and is at a substantially increased high level when the tail end portion of the sheet is adjacent the opening(s) so that basic shingling occurs.  The vacuum modulating control includes devices for sensing the position, speed and length of the traveling sheets, with this information being processed to provide an output signal which controls the speed of a shaft with which a rotary valve is associated.  The valve is disposed within the vacuum shingler plenum and modulates the flow of air through the plenum opening(s) in correlation with the determined information.  The vacuum shingler assembly is disposed so that its sheet input is substantially horizontally aligned with the discharge of the infeed nip . Furthermore, the assembly is disposed with its conveyor portions generally horizontal, rather than inclined, so that even the middle of a sheet is supported thereby as the sheet spans the conveyor.
Patent CA-1318817-C (CA)
Title: Boat with cavity for a boat propulsion device
Inventor: LIVINGSTON DAVID T
IPC: B63H21/30
Filed: 1988-05-27
Granted: 1993-06-08
Abstract: ABSTRACT         A boat with a generally vertical transom includes a water planing hull bottom surface shaped to provide a minimum wetted area when on plane and a raised bottom surface above the bottom surface.  The raised bottom surface contains a hole therethrough adjacent the transom for mounting a boat propulsion device having a downward and rearward extending propeller drive.  The raised bottom surface forms an upward cavity having an open end notched through the transom within the bottom surface of the boat.          In a second embodiment the boat includes a second raised bottom surface adjacent the upward cavity.
Patent CA-1340842-C (CA)
Inventor: FREEMAN CLARENCE S
IPC: H01B3/30
Filed: 1988-06-21
Granted: 1999-12-07
Abstract: A gel composition including a water absorbent polymer of a hydrocarbon chain backbone with pendent anionic groups.      The gel composition is activated with moisture so that the water absorbent composition migrates to absorb the water.      Also, the gel composition protects wires which carry a small dc current and heals shorts caused by moisture in such wires. The gel composition can include a tackifier which makes the mixtures adhere to surfaces.
Patent CA-1308075-C (CA)
Title: Blast-resistant container
Inventor: YERUSHALMI YAACOV
IPC: F42B39/00
Filed: 1988-07-15
Granted: 1992-09-29
Abstract: BLAST-RESISTANT CONTAINER     ABSTRACT OF THE DISCLOSURE           A blast-resistant container for receiving an explosive or explosive-suspect article comprises a high-strength outer housing, and an inner compressible layer of a mixture including vermiculite in a binder, effective to space the article from the outer housing, to absorb energy of the blast before transmited to the outer housing, to distribute the blast forces over a larger surface area of the outer housing, and to impart resistance to the penetration of fragments to the outer housing.
Patent CA-1318185-C (CA)
Title: Pastry-forming device
Inventor: KANJI SADRUDIN
IPC: A21C9/06
Filed: 1988-08-17
Granted: 1993-05-25
Abstract: ABSTRACT    A pastry-forming  device  for  forming a thin pastry, having a mould surface about which a pastry dough may be wrapped to form a pastry having the desired shape.  More particularly, the pastry-forming device comprises a pair of  mutually  abutting  members,  which  in  a  preferred embodiment are pivoted to a frame.  Such pair of mutually abutting members are slidable for a distance relative to each  other,  and  each  posses  converging  half-surface members  which  together  form  a  head  portion  or  mould surface at one end thereof.   These half members further possess mutually abutting intermediary portions extending respectively  therefrom.    The  head  portion  thereof  is adapted to be pivotably positioned above a planar surface, so as to allow clamping of dough which may be located on the planar  surface between  such surface  and  the head portion.  Portions of the dough not clamped may be wrapped around the head portion to form the pastry.  Removal of the formed pastry from the head portion is accomplished by raising the head portion from its position of contacting engagement  with  the  planar  surface,  and  slidably displacing one half surface member relative to the other, which thereby dislodges the pastry from the head portion, allowing for easy removal of the pastry from the pastry-forming device.
Patent CA-1314448-C (CA)
Title: Engine with spark ignition operation through the oil pressure switch after fuel shutoff
Inventor: GRENN DANIEL P
IPC: F02B1/04
Filed: 1988-08-26
Granted: 1993-03-16
Abstract: ENGINE WITH SPARK IGNITION OPERATION THROUGH THE OIL PRESSURE SWITCH AFTER FUEL SHUTOFF     Abstract of the Disclosure A motor vehicle engine includes an operator controlled fuel injection enabling switch effective to disconnect electric fuel injection apparatus from an electric power source and thus initiate the cessation of engine operation when deactivated.  However, the spark ignition system is still powered through an oil pressure switch so as to continue engine operation for a few extra crankshaft rotations to reduce the unburned fuel in the intake passage as the engine stops and thus reduce throttle bore coking.  In a vehicle having a fuel pump relay activated by the fuel injection enabling switch with contacts connected across the oil pressure switch, the invention may be obtained by changing the power connection of the spark ignition system from the fuel injection enabling (ignition) switch to the fuel pump relay.
Patent CA-1299269-C (CA)
Title: Smoke and fire detection system communication
Inventor: TICE LEE D
IPC: H04Q9/14
Filed: 1988-10-20
Granted: 1992-04-21
Abstract: Abstract of the Disclosure A smoke and fire detection system wherein a central controller transmits data to remote transponders on a voltage supply line by pulse code modulation (PCM) of the supply voltage, and the transponders communicate with the controller by pulse width modulated (PWM) current pulses over the voltage supply line.  A transmitter in the controller supplys a nominal operating voltage to the transponders and transmits a data word comprising a plurality of data bits to the transponders over the line. The transmitter generates each data bit by switching the voltage supplied to the line from the nominal operating voltage to a first voltage corresponding to a first logical level or a second voltage corresponding to a second logical level.  A decoder in each transponder derives the transmitted data word.  The decoder detects each data bit by detecting the transition from the nominal voltage to the first or second voltages, and the decoder determines the logical level of each bit by measuring the transmitted voltage level immediately after detecting the transition.  The transponder returns data to the controller in the form of data signals, each data signal having a duration based on the data to be returned.  With such arrangement, the transponders do not require a clock or other timing circuitry to communicate with the controller.  Also, the controller may vary the data rate or bit duration without interfering with the operation of the transponders.
Patent CA-1304546-C (CA)
Title: Adjustable brush glider
Inventor: KRAUS EUGENE F
IPC: A47L11/164
Filed: 1988-11-25
Granted: 1992-07-07
Abstract: ABSTRACT OF THE DISCLOSURE An adjustable brush glider mountable to a brush block to provide a surface for supporting the brush block a selected distance away from a floor.  The glider provides a smooth gliding surface, and is adjustable, without being removed, to allow control over the amount of contact between the bristles and the floor.
Patent CA-1340680-C (CA)
Title: Imide-aromatic peroxyacids as bleaching agents
Inventor: BURZIO FULVIO
IPC: C11D3/395
Filed: 1989-01-20
Granted: 1999-07-27
Abstract: A solid or liquid, bleaching or detergent composition comprising as a bleaching agent a compound of general formula: (see formula I) wherein: A represents a ring derived from benzene or napthalene, or a substituted derivative of the rings; R represents a group selected from H, -OH, -COOH, -COOOH, COO-C1-5alkyl, alkyl, substituted alkyl and a mixture thereof; and n is an integer of from one to 5.
Patent CA-1335713-C (CA)
Title: Device and method for separating leucocytes from  platelet concentrate
Inventor: PALL DAVID B
IPC: B01D/
Filed: 1989-02-09
Granted: 1995-05-30
Abstract: A device for the depletion of the leukocyte content in a platelet concentrate, preferably comprising a modified porous, fibrous medium with a critical wetting surface tension of at least about 90 dynes/cm and a method for the depletion of the leukocyte content and platelet concentrate comprising passing the platelet concentrate through the porous medium.
Patent CA-1327455-C (CA)
Title: Breach-cooled structure
Inventor: VOGT ROBERT L
IPC: F02C7/18
Filed: 1989-02-09
Granted: 1994-03-08
Abstract: BREACH-COOLED STRUCTURE                    ABSTRACT     The present invention comprises a method and apparatus for improving cooling of a wall in a gas  turbine  engine.   The  method  and  apparatus provide breach cooling of an imperforate wall, such  as  a  combustor  liner,  for  improving  the cooling  thereof.   The  breach  cooling  includes structure for channeling a cooling fluid as a jet toward an outer surface of the imperforate wall, with the jet having sufficient momentum to breach a boundary layer of the cooling fluid which forms over the wall outer surface to allow the jet to contact the wall outer surface for more effective cooling thereof.   In an exemplary embodiment of the invention, the breach-cooled wall is an upstream portion of the gas turbine engine combustor,  and the inner surface  of  the  combustor  liner  facing  the combustion gases is characterized by not having a film-cooling  boundary  layer  of  air  to  reduce quenching of  the combustion gases  for  reducing exhaust emissions.
Patent CA-1325721-C (CA)
Inventor: YAMAGUCHI NAOKI
IPC: A63F3/00
Filed: 1989-02-13
Granted: 1994-01-04
Abstract: Artistic Toy ABSTRACT OF THE DISCLOSURE    An artistic toy for producing a desired design, figure or picture includes a support with cells and a plurality of blocks to be mounted in the cells.   Once mounted in the cells, the blocks are firmly held therein.   The toy further includes a block remover which enables the blocks to be readily removed, one by one, from the cells no matter how the blocks are located relative to one another.  Another artistic toy includes (i) a holding plate which can be connected to a support to hold blocks from above, (ii) means for standing an assembled toy of the support,  blocks and the holding plate on a flat surface, and (iii) means for hanging the assembled toy on a wall.
Patent CA-1338108-C (CA)
Title: Process for the preparation of thiophene derivatives and also new dihydrothiophene 1-oxides
Inventor: RIPPEL ROBERT
IPC: C07D333/48
Filed: 1989-02-15
Granted: 1996-03-05
Abstract: Thiophene derivatives of the formula I       having an - optionally substituted - amino group on the thiophene    ring   are    prepared   by   dehydrogenating dihydrothiophenes of the formulae IIa and/or IIb                          IIa                        IIb substituted in a manner identical to that of the desired thiophene derivatives, by means of H2O2, the dihydrothiophenes being reacted with H2O2 in a first reaction stage in a neutral medium to give the corresponding sulfoxides, which are then rearranged into the thiophene derivatives by means of acid in the second reaction stage.   The dihydrothiophene 1-oxides formed as intermediates in this reaction are new compounds. Like  the  thiophene  derivatives  formed  from  them  by rearrangement with acid, they are intermediates, mainly in the sector of plant protection agents and pharmaceuticals.
Patent CA-1332824-C (CA)
Title: Combination fire extinguisher and tire sealer
Inventor: PENN WILLIAM T
IPC: B60S5/04
Filed: 1989-03-03
Granted: 1994-11-01
Abstract: A fire extinguisher for automotive use is provided with the additional capability of sealing and reinflating a flat tire without any wheel removal. Thedevice is charged with a combination fire-extinguishing and tire-sealing composition, and fitted with a removable nozzle for extinguishing fires. To sealand inflate a flat tire, the nozzle is removed, and, in its place, one end of anadaptor hose assembly is attached to the fire extinguisher, and the other end isconnected to the tire valve with the wheel rotated to place the puncture or leak at the bottom. Then actuating the device dispenses sealant into the tire while inflating it, after which vehicle movement distributes the sealant and generatesheat which accelerates the tire-sealing action and further inflates the tire to a higher pressure, enabling the vehicle to proceed to a service station.
Patent CA-1305191-C (CA)
Title: Vehicle mounted load indicator system
Inventor: PERINI RICHARD L
IPC: B60P5/00
Filed: 1989-03-06
Granted: 1992-07-14
Abstract: VEHICLE MOUNTED LOAD INDICATOR SYSTEM     Abstract A system for use on vehicles having air bag suspension components to provide the operator an accurate reading of the weight of the load carried.  Air bag inflation is controlled by a height control valve to maintain a load carrying platform of the vehicle a constant distance from a vehicle axle.  Pressure changes in the air bags and a first conduit serving same are communicated to a transducer or the like by a second conduit. A readout device is located in the vehicle operator station.  The readout device displays the weight of the load on the platform and is adapted for use with different-sized air bag components.
Patent CA-1320374-C (CA)
Title: Apparatus and method for reproducing a pattern in an annular area
Inventor: BUCKLEY JERE D
IPC: G11B7/26
Filed: 1989-05-05
Granted: 1993-07-20
Abstract: ABSTRACT OF THE DISCLOSURE        APPARATUS AND METHOD FOR REPRODUCING PATTERNS    IN AN ANNULAR AREA USING RING FIELD PROJECTION OPTICS          A master disk is positioned such that a radial portion thereof is within a restricted field having good imagery of an optical projection system.  A second blank disk is positioned such that the image location extends along a radial portion thereof.  As the two disks are rotated synchronously a pattern in an annular area is formed on the blank disk replicating the master.  Good imagery of the pattern is obtained with a simple system having an image field less than the size of the object being reproduced.
Patent CA-1310768-C (CA)
Title: Apparatus for the recombination of hydrogen and oxygen
Inventor: SIEGLER WILLI
IPC: B01J8/04
Filed: 1989-05-08
Granted: 1992-11-24
Abstract: Abstract of the Disclosure:          An apparatus for the recombination of hydrogen and oxygen with the aid of a catalyst includes a vertically extending tube having end surfaces.  A catalyst body is disposed in the tube. Stoppers close the end surfaces of the tube and open as a function of at least one parameter from the group consisting of pressure and temperature.
Patent CA-1334132-C (CA)
Title: Manufacture of low expansion composites having high electrical and heat conductivity
Inventor: BELL JAMES A E
IPC: B22F1/17
Filed: 1989-06-12
Granted: 1995-01-31
Abstract: A method of producing a composite material from a mixture of copper and a low coefficient of thermal expansion nickel-iron alloy (Invar) powder is disclosed wherein advan-tageously at least part of the copper is deposited on the Invar powder prior to processing.  Processing includes cold compacting to a green strip or other configuration, annealing in the temper-ature range of 550-750°C and working the annealed material at a temperature in that range to high density.