baber/WOPTO huggingface dataset:
Patent CA-1216640-A (CA)
Inventor: GHOSH SUBIR
IPC: H01P5/12
Filed: 1984-10-24
Granted: 1987-01-13
Abstract: ABSTRACT                              DIRECTIONAL COUPLER FOR          SEPARATION OF SIGNALS IN TWO FREQUENCY BANDS WHILE         PRESERVING THEIR POLARIZATION CHARACTERISTICS.     The invention relates to    a directional coupler configured in a corrugated   waveguide for separation of signals in two bands   of   frequencies while maintaining their polarization characteristics of any arbitrary nature unaltered in each band. By virtue of  the reactance boundary condition, the principal   waveguide supports propagation of HEll hybrid  mode in the    higher frequency band and  HEll hybrid mode in the lower frequency band. These modes are characterized by concentration   of energy near the axis in the case of HEll hybrid mode   and near the boundary wall in the case of EHll hybrid mode. This principal waveguide does not allow, by reason of its   size and reactance boundary condition, the propagation of unwanted higher order modes in the two bands of interest. Furthermore, the principal waveguide has means of communicating   energy with four identical secondary waveguides which are disposed on the perimeter of the principal waveguide running parallel to the axis of the said waveguide such that a pair formed by two secondary waveguides placed in diametrically opposite positions, is orthogonal to similarly formed second pair.          The means of communicating energy between the principal  and secondary waveguides is provided by a periodically arranged coupling units in sets of four per transverse cross-section of the principal and secondary waveguides such that in each transverse plane the four coupling units are in coinciding disposition with the secondary waveguides. The coupling units are an arrangement of aperture like structures     which interconnect the principal and secondary waveguides. The separation of the high frequency signal through band selective coupling with well defined directivity is achieved by virtues of, first, a close agreement of phase propagation constant between the modes in the principal and secondary waveguides in the high frequency band, secondly, an accurately maintained constant spacing between the coupling units that provides  a 90° phase change between any two successive coupling units for the propagating modes in the high frequency band and, lastly, evanescence or very low phase change constant  for the low frequency band in the secondary waveguides. The preservation of polarization characteristics over two large bandwidths is obtained by restraining propagation of unwanted modes in the principal waveguide.
Patent CA-1229057-A (CA)
Inventor: VON FULGER CHARLES
IPC: A23L27/10
Filed: 1984-11-19
Granted: 1987-11-10
Abstract: ABSTRACT      A process for producing a food composition possessing a malt-like flavor is disclosed.  The process involves germinating a cereal grain seed until sprouted roots develop.  The sprouted roots are explanted and are then grown on a nutrient medium.  The cultured root are then harvested and heated to develop the malt-like flavor.  The composition may be utilized as a source of malt flavor in a foodstuff or beverage.
Patent CA-1256675-A (CA)
Inventor: TREMBLAY PAUL
IPC: F16G11/02
Filed: 1984-12-13
Granted: 1989-07-04
Abstract: ABSTRACT OF THE DISCLOSURE        The disclosure herein describes a device for clamping the stripped end of a cable having a strength member extending centrally of the cable and projecting from the stripped end thereof; the device includes a body having one end defining a tapered socket and a wedge member cooperatingly engaging the socket and adapted to receive centrally thereof the projecting strength member; an actuatable wedge driving member engages a protruding end of the wedge member whereby actuation of the drive member or the body causes the drive member to force the wedge member into the tapered socket to thereby tightly grip the strength member of the cable.  This clamping device is particularly useful for fiber optic carrying cables.
Patent CA-1227544-A (CA)
Inventor: AOKI MASAYUKI
IPC: H05B6/06
Filed: 1985-01-09
Granted: 1987-09-29
Abstract: Abstract of the Disclosure In an induction heat cooking apparatus of the invention, an electromagnetic field is generated by a heating coil, and the generated electromagnetic field is supplied to a load so that the load is inductively heated.  The cooking apparatus includes an exciter circuit for exciting the heating coil to generate the electromagnetic field; a temperature set circuit for providing a temperature set signal which designates a given target temperature of the load; and a temperature measure circuit for measuring the temperature of the load to generate a temperature measure signal which represents the measured temperature of the load.  The cooking apparatus further includes a difference detector circuit for detecting a difference between the temperature set signal and the temperature measure signal and generating a difference signal.  The exciter circuit receives the difference signal so as to control heat power for the heating coil.
Patent CA-1226667-A (CA)
Inventor: MOURIER CHRISTIAN
IPC: H04N5/217
Filed: 1985-01-15
Granted: 1987-09-08
Abstract: ABSTRACT OF THE DISCLOSURE         Television camera lenses cover a field which is larger than the useful field to be televised.  Defects appear in the useful image as a result of diffusion of light from the portion of the image which is not intended to be televised or in other words the peripheral portion.  The device for correcting peripheral diffusion comprises scanning and processing means for scanning a band located on the target around the image to be tote-vised and for supplying a diffusion-correcting signal which is representative of a mean value of the band-scanning signals.
Patent CA-1248940-A (CA)
Inventor: RIEDERER EMIL
IPC: F26B11/04
Filed: 1985-01-18
Granted: 1989-01-17
Abstract: ABSTRACT OF THE DISCLOSURE            TITLE:  SELF-CLEANING ROTATING DRUM.   The  invention relates to a rotating drum having  a lining which avoids caking-on,  the rotating drum being lined  with movable elastic material basic webs  fitted at  a distance from the inner side of the drum and  the securing positions of the basic webs being covered over by  preferably  thinner elastic overlapping  webs  with bevelled edges.
Patent CA-1261509-A (CA)
Inventor: HOMAN GARY R
IPC: C08G77/28
Filed: 1985-01-23
Granted: 1989-09-26
Abstract: COATING METHOD AND SILICONE COMPOSITION FOR PSA                  RELEASE COATING                            Abstract Moisture-curable silicone compositions for adhesive-release coatings comprising an alkoxysilyi-organosiloxane, a titanium ester and an aminoorganosiloxane have an adhesive-release force, when cured, which is directly related to the amount and type of aminoorgano-siloxane.  The compositions are useful for coating a flexible sheet material, such as paper or polymeric film, to provide a surface that will release pressure sensitive adhesive with a pre-selected release force of up to 400 g/in 154 N/m).  Thin coatings or the composition cure in as little as 15 seconds when exposed to moisture.
Patent CA-1230326-A (CA)
Inventor: TRZECIAK KURT
IPC: E21B4/02
Filed: 1985-01-23
Granted: 1987-12-15
Abstract: DOWNHOLE MOTOR AND BEARING ASSEMBLY     Abstract of the Disclosure:     A downhole motor and bearing assembly has a tubular housing with an inlet and outlet for flow of drilling fluid.  A stator is supported in the housing and a rotor is supported for rotary movement in the stator.  An open tubular shaft is connected to the rotor for rotary movement in the housing.  The bearing assembly has bearing members in the housing in fixed spaced relation and other bearing members cooperable therewith.  Sleeve members positioned in the housing support selected bearing members in a fixed spaced relation.  Other sleeve members positioned on the shaft support the other bearing members in a fixed spaced relation.  The sleeve members are interchangeably positioned in the housing and on the shaft to position the bearing members in selected interchangeable relation according to the need for the bearings to support a load in a forward or reverse direction.  A radial sleeve bearing is supported in the housing in a bearing relation to the shaft in a position forward and backward of the bearing assembly.  The housing and bearing assembly are open at the rear end for flow of drilling fluid therethrough.
Patent CA-1240563-A (CA)
Inventor: PRIOR DAVID L
IPC: B63B15/02
Filed: 1985-02-19
Granted: 1988-08-16
Abstract: A B S T R A C T This invention relates to an improved arrangement for mounting a sail on a rotatable mast.  The rotatable mast is provided with an upper pair of yard arms pivotally connected to an upper portion of the mast and a lower pair of yard arms pivotally connected to a lower portion of the mast.  Each of the upper and lower pairs of yard arms are movable between an open position in which the yard arms are substantially in alignment and a closed position in which the yard arms are folded to be substantially parallel to the mast.  An essentially rectangular sail connected to each of the yard arms is compactly folded when the yard arms are in folded position and a sleeve which preferably is stored at the base of the mast slides over the yard arms and sail when the yard arms and sail are in folded position.   This arrangement provides a simple, rugged and practical arrangement which is suitable for small sail boats and larger vessels.  It can be used as the sole means of propulsion or as an auxiliary source of power.
Patent CA-1258131-A (CA)
Inventor: RABAEY DIRK H L C
IPC: H03M3/02
Filed: 1985-03-11
Granted: 1989-08-01
Abstract: ABSTRACT OF THE DISCLOSURE     A switched capacitance feedback control circuit includes a switched capacitance signal input circuit connected in cascade to a signal processor. The input circuit includes a timer providing timing signals, a single cap-acitance and a switch controlled by the timer.  The input circuit is able to sample and algebraically add an analog input signal and an analog feedback signal provided by the processor.  As the input and feedback signals are processed by making use of the same capacitance there is no problem of capacitance matching and so more accurate performance than with the prior art results.
Patent CA-1259977-A (CA)
Inventor: SANO NICHIRO
IPC: F16K3/24
Filed: 1985-03-21
Granted: 1989-09-26
Abstract: PLASTIC GATE VALVE             ABSTRACT OF THE DISCLOSURE     A plastic gate valve including a plastic valve casing having a passage and a valve chamber therein; a spindle extending in the valve chamber and rotatably supported by the valve casing; a handle connected with the spindle and rotating it; and a plastic valve body engaged with the spindle and moving along an inner wall of the valve chamber in response to the rotation of the spindle whereby the valve body opens and shuts the passage.  The valve body is made of heat-resistant rigid vinyl chloride resin and covered with rubber-like elastic material by means of vulcanization adhesion so as to be integral with the valve body.
Patent CA-1226341-A (CA)
Title: Procede de compensation thermique d'un circuit  magnetique
Inventor: GUILLAUMIN JACQUES
IPC: H01F27/00
Filed: 1985-04-10
Granted: 1987-09-01
Abstract: Procédé de compensation thermique des circuits magnétiques dont les pertes augmentent en fonction de la température ambiante. Le procédé consiste à placer une pastille d'un matériau dont la perméabilité magnétique est une fonction décroissante de la température et le point de Curie sensiblement égal à la valeur maximale éventuelle de la température ambiante, à proximité immédiate du circuit magnétique. Application aux dispositifs de détection avec sécurité de masses métalliques.
Patent CA-1256098-A (CA)
Inventor: PROUGH JAMES R
IPC: B01F7/00
Filed: 1985-04-25
Granted: 1989-06-20
Abstract: MEDIUM CONSISTENCY MIXER ROTOR    AND STATOR CONSTRUCTION           ABSTRACT OF THE DISCLOSURE          A mixer apparatus, and procedure, for mixing medium consistency (e.g., 6-15%) paper pulp, or like fibrous suspension, minimizes the power necessary to effect fluidization, and minimizes the speed for rotation of the rotor to effect fluidization.  This is accomplished by preventing the formation of a shadow behind the rotor ribs as they rotate within the mixer housing, and similarly by preventing the formation of a shadow behind the stationary ribs formed on the housing (and cooperating with the rotating ribs).         Such shadows are prevented by providing one wall of each of the ribs - the trailing wall in the direction of rotation of the rotor - so that it is sloped, and fills the volume the shadow would occupy.
Patent CA-1210995-A (CA)
Inventor: CAFFYN ALLAN E
IPC: F23G5/00
Filed: 1985-04-25
Granted: 1986-09-09
Abstract: ABSTRACT        An incineration system for processing solid, semi-solid waste material and sludge includes an incin-erator unit which has a horizontally disposed rotary primary oxidation chamber and a generally vertically dis-posed secondary oxidation chamber which receives gaseous products of combustion from the primary chamber.  Baffles within the secondary chamber provide a tortuous gas flow path through the secondary chamber.  Gaseous emissions from the incinerator unit pass through a heat recovery boiler, a baghouse and a scrubber tower before being dis-charged to atmosphere.  A control system controls rota-tion of the primary oxidation chamber and an auger/shredder which feeds waste material to be burned into the primary oxidation chamber.  The control system may include a programmable computer for modifying the control functions in response to programmed data relating to the characteristics of material processed in the in-cineration system.
Patent CA-1258933-A (CA)
Inventor: SASAKI ISAO
IPC: C08F290/00
Filed: 1985-04-30
Granted: 1989-08-29
Abstract: ABSTRACT OF THE DISCLOSURE         A polyorganosiloxane-based graft copolymer superior in impact resistance, light resistance, surface gloss, and color fastness, produced by graft-polymerizing at least one vinyl monomer on a polyorganosiloxane consisting of 90 to 99.999 mole % of an organosiloxane having a unit represented by the general formula RnSiO(4-n)/2 (I) wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; and n denotes a number of 0, 1, or 2; and 10 to 0.001 mole % of an organosiloxane graft-linking agent having a unit represented by the general formula                   (II) wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6; the graft copolymer containing the polyorgano-siloxane in an amount of 1 to 70% by weight; and a process for producing the graft copolymer.
Patent CA-1243159-A (CA)
Inventor: MIZUNO TOSHIYA
IPC: B01D39/04
Filed: 1985-05-06
Granted: 1988-10-18
Abstract: ABSTRACT OF THE DISCLOSURE         A vinylidene fluoride resin having an inherent viscosity of 0.8 to 1.4 dl/g in dimethyl-formamide is melt-extruded and cooled and solidified under draft-stretching to form a film having a bi-refringence of 25 x 10-3 or larger.  The film is heat-treated at 80 - 120 °C and split into a split yarn.          The split yarn has a Young's modulus even higher than that of the polypropylene split yarn and, when provided with a surface charge above the glass transi-tion temperature, retains the charge semi-permanently.          The charged split yarn is particularly suitable for forming a gas filter.
Patent CA-1240086-A (CA)
Title: Method and apparatus for adaptive receiver squelch echo control
Inventor: STAAB HANS P
IPC: H04B3/20
Filed: 1985-05-27
Granted: 1988-08-02
Abstract: ABSTRACT          After receipt of the answerback tone in a conventional handshaking procedure, the originate modem is connected to the communication line, sends a short echo control training (ECT) sequence to the answer modem, and starts a timer.  Upon receipt of the ECTo sequence, the answer modem sends its own ECTa sequence to the originate mod m and starts its own timer.  Upon receiving the ECTa sequence, the originate modem measures the round trip propagation delay (TRTPD) and transmits a second ECTo sequence.  The time of receipt of this sequence at the answer modem is used by the answer modem to determine TRTPD.  Either modem may now start data transmission.  Because of the measurements made, the receiver at the transmitting modem is aware that the echo from its transmission will be delayed by TRTPD. Accordingly, it will open an "echo monitor window" in a time interval around TRTPD during which time frame any received energy is assumed to be an echo.  If an echo is detected in such time interval, the receiver will be squelched until energy is no longer detected. Moreover, knowledge of TRTPD, also permits the modem to select an optimum length training sequence because the quality of the communication line depends on its length.
Patent CA-1234344-A (CA)
Inventor: BEEGHLY RICHARD M
IPC: B60C11/11
Filed: 1985-06-12
Granted: 1988-03-22
Abstract: Abstract of the Disclosure TRACTOR TIRE A pneumatic tire (10) has a tread (12) has a continuous center rib (24) extending circumferentially about the tread.  A set of traction lugs (30,32) extend inwardly from each axial edge of the tread. Independent traction elements (58,60) are disposed circumferentially between circumferentially next adjacent traction lugs.  The center rib (24) and the traction lugs (30,32) are substantially the same height, but the independent traction elements (58,60) have a lower height.  An axially oriented arc of the tread has a radius such that a footprint of the tire has a maximum axial width that is in the range of 40% to 80% of the arc width of the tread.
Patent CA-1252260-A (CA)
Title: Movable handle structure for control of self-  propelled vacuum cleaner
Inventor: MARTIN DEAN C
IPC: A47L9/32
Filed: 1985-06-13
Granted: 1989-04-11
Abstract: "MOVABLE HANDLE STRUCTURE FOR CONTROL OF      SELF-PROPELLED VACUUM CLEANER"                 ABSTRACT OF THE DISCLOSURE         An improved movable control for a self-propelled upright vacuum cleaner.  The control includes a sleeve longi-tudinally movably mounted on the distal end of the upright handle of the vacuum cleaner and includes locking structure for retaining the sleeve in a center neutral position, wherein the drive of the nozzle wheels is maintained in a neutral condition.  The locking structure is readily manipulatible to release  the sleeve from the nuetral position when desired and permit it to be moved in opposite directions so as to effect corresponding forward or rearward operation of the drive.  The sleeve is maintained relatively short while yet providing a long travel in providing facilitated user control of the drive operation.  The sleeve is provided in two halves which are secured together by an improved securing arrangement.  In one form, the locking structure is pivotable about an axis paral-lel to the handle end portion, and in  another form, the locking means is pivotable about an axis transversely thereto.
Patent CA-1236912-A (CA)
Inventor: ALBERT DAVID E
IPC: A61B8/06
Filed: 1985-06-25
Granted: 1988-05-17
Abstract: ABSTRACT OF THE DISCLOSURE         The disclosure relates to systems for measuring blood flow by detecting Doppler shift of ultrasound reflected by blood components moving in a blood vessel.  The systems employ electronic techniques for providing accurate tracking of portions of the frequency spectra of Doppler shift signals to determine peak and mean velocity and acceleration.
Patent CA-1246850-A (CA)
Inventor: BURKHALTER JOHN F
IPC: C09K8/46
Filed: 1985-11-21
Granted: 1988-12-20
Abstract: Abstract of the Disclosure Liquid fluid loss control additives for oil field cements are provided which have long storage lives without excessive settling and which can be mixed with cement slurries without the formation of gel balls or fish eyes.          The liquid additives consist essentially of a liquid hydro-carbon, a hydrophilic water soluble polymer, an organophilic clay suspending agent, an organic sulfonate dispersant, a polyamide amine surfactant for oil wetting the polymer and a surfactant for stripping liquid hydrocarbon from the polymer when contacted with water.
Patent CA-1223441-A (CA)
Inventor: HARNOIS YVES
IPC: G09F3/20
Filed: 1986-01-30
Granted: 1987-06-30
Abstract: ABSTRACT OF THE DISCLOSURE         This sign board is of the type in which display elements can be changed from time to time.  The board comprises the three following laminations:  a continuous backing, a spacer lamination adhering to one face of the backing and defining a series of pocket-forming cutouts, each having an access opening along one side; and a facing sheet lamination adhered to the spacer lamination and forming a series of windows, each opposite a pocket, each window of a smaller size than that of the associated pocket.          For each pocket, there are provided a stack of individual display sheets, all of the same size, conforming to the size of the associated pocket and each stack insertable and removable in its associated pocket through said access opening.  The foremost display sheet of the stack is visible through the window, while the other display sheets of the stack are hidden from view.  All the display sheets of one stack are interchangeable.  A locking strip is preferably provided to lock the display sheets in their respective pockets.
Patent CA-1255133-A (CA)
Inventor: PRIAROGGIA PAOLO G
IPC: G02B6/24
Filed: 1986-02-28
Granted: 1989-06-06
Abstract: ABSTRACT OF THE DISCLOSURE        A joint for interconnecting a pair of optical fiber, sub-marine cables which have a central armor sufficient to withstand tensile stresses applied to the cables during use, i.e., laying, recovery and operation, which have optical fibers loosely disposed in channels in a plastic layer around the central armor and which have all otherwise empty spaces filled with a substantially in-compressible fluid.  The joint comprises a metal ferrule or a weld mechanically interconnecting the ends of the armors of the cables. A plastic joint sheath surrounds the interconnection of the armors and has channels which interconnect the respective channels of the cables.  The optical fibers are loosely received in and interconnected within the joint sheath channels.  Any otherwise empty spaces within the plastic joint sheath are filled with a substantially incompressible fluid.  The cables and the joint sheath are without external armor which, by itself, can withstand the tensile stresses and hydrostatic pressures to which the cables are subjected during use.