baber/WOPTO huggingface dataset:
Patent CA-1297615-C (CA)
Title: Polyimide resin composition
Inventor: YAMAYA NORIMASA
IPC: C08L79/08
Filed: 1987-04-27
Granted: 1992-03-17
Abstract: A B S T R A C T        This invention is a polyimide resin composition containing 100 parts by weight of polyimide having recurring units of the following general formula (I):                      (I) (where Y is a bond, divalent hydrocarbon radical having from 1 to 10 carbons, hexafluorinated isopropylidene radical, carbonyl radical, thio radical, sulfinyl radical, sulfonyl radical or oxide, and R is a tetra-valent radical of aliphatic radical having at least 2 carbons, cycloaliphatic radical, monoaromatic radical, condensed polyaromatic radical,  or non-condensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function) and from 5 to 100 parts by weight of fibrous reinforcing materials such as glass fibres, carbon fibres, potassium titanate fibres and aromatic polyamide fibres.     The resin composition can provide molded products having excellent high-temperature stability, dimensional stability and mechanical strength, and is useful as the material for electric and electronic devices, precision instrument parts etc.     Polyimide of this invention can be prepared from aromatic ether-diamined and tetracarboxylic acid dianhydrides.    The aromatic ether-diamines  are 4,4'-bis(3-aminophenoxy)biphenyl,  2,2-bis[4-(3-amino-phenoxy)phenyl]propane, bis[4-(3-aminophenoxy)phenyl]  sulfide,  etc.          The tetracarboxylic acid dianhydrides are pyromellitic dianhydride, 3,3',4,4'-benzophenone tetracarboxylic dianhydride, etc.
Patent CA-1330651-C (CA)
Inventor: PANTIC VLADIMIR
IPC: A23K1/165
Filed: 1987-07-27
Granted: 1994-07-12
Abstract: Abstract Method and Product for Promoting Improved Meat Quality in Meat Producing Animals The growth rate of meat-producing animals as well as the yield and quality of the meat obtained therefrom is improved by administering to the animal prior to its sexual maturation an effective amount of a female gonadal steroidal compound; namely, an estrogen or progestagen compound and preferably a mixture thereof, sufficient to delay development of the gonadal function of the animal, e.g. spermatogenesis. Such administration is terminated sufficiently prior to slaughter of the animal that the administered steroidal compound has been substantially completely removed from the animal's system which before slaughter exhibits levels of the corresponding natural hormones therein substantially within normal limits.  In mammals, administration is preferably by injection, but in fish, shellfish and poultry, the active steroidal compound is incorporated at low levels in the usual feed therefor.  In mammals, the treatment is preferably applied to uncastrated males but can be extended to females and castrated males if desired; while in fish, shellfish and poultry administration is without regard to sex.  The ratio of lean meat to fat is increased significantly by the treatment and in male mammals aggressiveness and odor development with consequential tainting of the meat is suppressed until slaughter.          (Fig. 1)
Patent CA-1291942-C (CA)
Title: Pulverized fuel slurry burner and method of operating same
Inventor: BINASIK CHESTER S
IPC: F23M9/00
Filed: 1987-08-05
Granted: 1991-11-12
Abstract: PULVERIZED FUEL SLURRY BURNER AND METHOD OF OPERATING SAME              ABSTRACT OF THE DISCLOSURE A burner especially adapted for use with pul-verized fuel slurries, such as pulverized coal-water slurries.  The burner has an atomizing nozzle which disperses the slurry in the form of multiple, diverging spray cones issuing from a corresponding number of ato-mizing orifices.  Each orifice is formed by a central atomizing air flow.  The slurry is brought into contact with the air flow and is atomized thereby.  Before the atomized air flow is discharged, it is enveloped by a rotating auxiliary air flow and constricted to generate a venturi effect which facilitates the formation of the diverging, cone-shaped discharge pattern.  A combustion air spinner surrounds the nozzle and is constructed of multiple vanes which have circularly arcuate shapes and a length, in the direction of the air flow, which is least proximate the nozzle and greatest at the periphery of the vanes.  This assures an even combustion air flow rate over the entire radial extent of the spinner.  The spin rates induced by the blades increase in a radially outward direction by a factor of at least about 10 which generates a pressure gradient downstream of the spinner and radially outward of the burner axis towards which air discharged by the spinner is drawn.  This generates a vortex along the burner axis which permits hot combus-tion gases to penetrate upstream towards the nozzle. Contact between the combustion gases and the nozzle is prevented by the air flow issuing from the spinner in the vicinity of the nozzle.  A secondary combustion air envelope is formed by a register which surrounds the spinner and which limits the extent to which the combus-tion air through the spinner can expand downstream of the burner.
Patent CA-1275808-C (CA)
Title: Knife sharpener
Inventor: OWEN JOE L
IPC: B24B3/54
Filed: 1987-09-08
Granted: 1990-11-06
Abstract: ABSTRACT OF THE DISCLOSURE         A knife sharpener comprises an elongated blade holder with a clamping device for holding a blade at one end of the holder with the blade extending transversely to the length of the holder, a post extending from the other end of the holder perpendicular to the plane in which the blade is gripped, and an elongated sharpening element having a sharpening surface extending over part of its length and a guide slot for receiving a ball at the top of the post extending along the remainder of its length. Engagement between the ball and the guide slot with the sharpening surface contacting an edge of the blade to be sharpened establishes the sharpening angle which is maintained throughout sharpening strokes of the sharpening element.  The post may be adjustable in height to adjust the sharpening angle and may be replicated on opposite sides of the holder.
Patent CA-1306516-C (CA)
Title: Demodulator for psk-modulated signals
Inventor: SHIBANO YOSHIZO
IPC: H04L27/22
Filed: 1987-09-10
Granted: 1992-08-18
Abstract: ABSTRACT OF THE INVENTION         A demodulator is disclosed for a PSK-modulated transmission signal in which the time average value of the  frequencies  thereof  are  equal  to  the  carrier frequency.  A mixer receives and mixes the PSK-modulated transmission signal with a signal from a local variable frequency oscillator and the output thereof is converted to  a  square  wave  which  is  used  to  reconstruct  the original  digital  modulation  data.    A  pulse  counter receives  and counts the square wave signal  for every period of time which is n times a time slot of a digital signal and a subtractor provides a difference between the count value from the pulse counter and reference count number.  The subtractor output is converted to an analog signal which controls the local oscillator frequency.
Patent CA-1280860-C (CA)
Title: Apparatus for supporting tubular films of thermoplastic material
Inventor: REINHOLD KLAUS
IPC: B29D7/01
Filed: 1987-09-30
Granted: 1991-03-05
Abstract: ABSTRACT OF THE DISCLOSURE          Apparatus for the external support of tubular films of thermoplastic material consists of groups of outwardly curved supporting segments disposed successively in the direction of withdrawal of the tubular film.  These supporting segments are adjustable simultaneously and in the same sense to different tubular film diameters, and for their adjusting movement they are each connected with a turning bar which is common to all supporting segment groups and journalled in a supporting frame and with a holding bar aligned parallel thereto which again is common to all supporting segment groups.
Patent CA-1283183-C (CA)
Title: Cable connector
Inventor: TEICHLER HEIDE
IPC: H01R4/24
Filed: 1987-11-06
Granted: 1991-04-16
Abstract: ABSTRACT OF THE DISCLOSURE           A cable connecting element, in particular a dropwire cable connecting element for double-wire dropwire cables comprises an upper and a lower part and of two connecting elements each moving two cutting and clamping contacts.  This cable connecting element is intended to allow, with economic manufacture, an electrical connection between two double-wire dropwire cables, without removing their insulations from each other  and without the distance between the wires being identical.  The invention provides both in the upper part and in the lower part guide channels for accommodation of the double-wire cables into which their narrow sides are inserted. The guide channels of upper part and lower part have one connecting element, each with cutting and clamping contacts which penetrates the narrow slides of the respective incoming and  outgoing  double-wires  and  contact  and  connect  the respective wires of both cables electrically.
Patent CA-1286139-C (CA)
Title: Filter dye for photographic element
Inventor: DIEHL DONALD R
IPC: G03C1/83
Filed: 1987-12-02
Granted: 1991-07-16
Abstract: FILTER DYE FOR PHOTOGRAPHIC ELEMENT      Abstract of the Disclosure Dyes having the structure                , wherein A represents a substituted or unsubstituted nucleus having a carboxyphenyl or sulfonamidophenyl substituent selected from the group consisting of 2-pryazolin-5-ones free of any substituent bonded thereto through a carboxyl group, rhodanines, hydantoins, 2-thiohydantoins, 4-thiohydantoins, 2,4-oxazolidindiones, 2-thio-2,4-oxazolidindiones, isoxazolinones, barbiturics, 2-thiobarbiturics, and indandiones, R represents hydrogen, substituted or unsubsti-tuted alkyl of 1 to 4 carbon atoms, or benzyl, R1 and R2 each independently represents substituted or unsubstituted alkyl or aryl, or taken together with R5, R6, N, and the carbon atoms to which they are attached, represent the atoms needed to complete a julolydyl ring, R3 represents H, or substituted or unsubsti-tuted alkyl or aryl, R5 and R6 each independently represents H, or R5 taken together with R1, or R6 taken to-gether with R2, represent the atoms necessary to complete a carbocyclic ring such as tetrahydro-quinoyl, and m is 0 or 1 are disclosed.  The dyes are useful as filter dyes in photographic filter layers.
Patent CA-1303395-C (CA)
Title: Data rate limiter for optical transmission system
Inventor: BHAGAVATULA VENKATA A
IPC: H04B10/2581
Filed: 1987-12-11
Granted: 1992-06-16
Abstract: Abstract of the Disclosure A single-mode transmission optical fiber may have a  bandwidth  much  greater  than  that  necessary  to transmit  a desired predetermined maximum data rate. The  single-mode  fiber  is  connected  to  a  bandwidth limiting device comprising the serial combination of an input optical  fiber,  a mode converter and multimode fiber.    If  the  multimode  fiber   is  capable  of propagating two modes, for example, the mode converter converts the LP01 signal from the transmission fiber to the LP01 and LP11 modes.  These two modes propagate at different speeds through the multimode fiber.  Means connected to the output end of the multimode  fiber detects the two modes.  If the time delay difference .DELTA.T between the two modes  is small with respect to the width of a pulse in the transmitted pulse train, the pulse  train  will  be  detected  without  distortion. Transmission at a higher data rate causes .DELTA.T to be large with respect to pulse width.  Thus, a transmitted pulse causes the generation of a false pulse, whereby operation at the higher data rate is impossible.  Also disclosed  are  methods  of  making   suitable  mode converters.
Patent CA-1278083-C (CA)
Title: Dispositif perfectionne pour engendrer dans le sol a la fois des ondes acoustiques transversales et longitudinales suivant une pluralite dedirections differentes
Inventor: CHOLET JACQUES
IPC: G01V1/053
Filed: 1987-12-23
Granted: 1990-12-18
Abstract: Dispositif pour engendrer dans le sol des ondes acoustiques longitudinales et transversales par percussion d'une masse contre un élément-cible couplé avec la surface du sol. L'élément-cible est évidé dans sa partie centrale et comporte une paroi intérieure inclinée par rapport à la verticale de forme tronconique par exemple. La masse est fixée à l'extrémité d'un bras pivotant par rapport à une structure de support en forme de cage parallélépipédique. Celle-ci est déplaçable par des vérins entre une position haute de transport et une position basse où l'élément-cible est couplé avec le sol. Des moyens moteurs permettent d'élever la masse par pivotement du bras. La géométrie de l'ensemble est calculée pour que la masse vienne frapper les faces intérieures inclinées perpendiculairement à celles-ci, et créé ainsi à la fois des ondes P et S. Application à la prospection sismique, par exemple.
Patent CA-1332132-C (CA)
Inventor: BOLGIANO NICHOLAS C
IPC: D06N3/08
Filed: 1988-01-26
Granted: 1994-09-27
Abstract: STAIN AND SCRATCH RESISTANT RESILIENT SURFACE COVERINGS       Abstract of the Disclosure Resilient surface coverings having improved scratch and stain resistance are disclosed in which a first top layer of a thermally-cured composition of a polyol component, an aminoplast component and an acid catalyst is adhered to a crosslinked or crosslinkable second layer material.  A process to prepare such sur-face coverings is also disclosed.
Patent CA-1288301-C (CA)
Title: Hydrotherapy massage method and apparatus
Inventor: HENKIN MELVYN L
IPC: E03D11/10
Filed: 1988-02-10
Granted: 1991-09-03
Abstract: ABSTRACT      A  hydrotherapy  method  and apparatus for discharging a water   stream  through  a  rigid  conduit  while  concurrently translating  the  conduit  discharge  orifice along a nonlinear path  describing an area.  The conduit is comprised of a supply section  and a discharge section having an axis misaligned with the   supply  section  axis  for  discharging  a  stream  in  a direction  tending  to  rotate  the  conduit  around the supply section  axis.  Frictional loading of the conduit, attributable to  suction  produced  by the supply water jet, is mitigated by providing  a  passageway  which permits the suction to draw tub water  into  a  cavity  for  entrainment  by  the water jet for discharge through the conduit.          /// /// /// /// /// /// /// /// /// /// /// /// /// /// ///
Patent CA-1294579-C (CA)
Title: Sealing cap with a safety band
Inventor: BREUER HANS-WERNER
IPC: B65D41/34
Filed: 1988-02-11
Granted: 1992-01-21
Abstract: Abstract The sealing cap (1) has a tear-off safety band (3) on its lower edge, the safety band having inwardly-projecting tongues (6) on its inner wall (5). A clip (7) is provided below each tongue. When a container opening is sealed for the first time, the tongues (6) are bent upwards and engage below a bulge on the container opening, The tongues are prevented from bending downwards by the clips (7), so that when the sealing cap is first removed, the safety band (3) is torn off.
Patent CA-1334871-C (CA)
Title: Device for quantizing an input signal adaptively so that a local decoded signal never exceeds a dynamic range of the input signal
Inventor: SUZUKI NORIO
IPC: H03M3/04
Filed: 1988-02-25
Granted: 1995-03-21
Abstract: For use in a differential encoder which makes use of a device input signal variable in a predetermined dynamic range, a local decoded signal, and as a local input signal a prediction signal, a quantizing arrangement (12, 13) is for adaptively quantizing a difference between the device and the local input signals into a quantization output signal in accordance with a predetermined quantization characteristic so that the local decoded signal never exceeds the dynamic range even if the quantization output signal is accompanied by a quantization error of a greatest absolute value,  Preferably, the quantizing arrangement comprises a converting circuit (16) for quantizing the device input signal into a converted signal in accordance with a preselected quantization characteristic for use in making a single quantizer (13) adaptively quantize the difference into the quantization output signal,  Alternatively, the quantizing arrangement may comprise three quantizers and a selecting arrangement for adaptively selecting one of outputs of the three quantizers,  A read-only memory is preferred in implementing each of the single quantizer, the converting circuit, the three quantizers, and a combination of the three quantizers and the selecting arrangement.
Patent CA-1299586-C (CA)
Title: Method for acylating a naphthalene compound
Inventor: MAGNI AMBROGIO
IPC: C07C67/10
Filed: 1988-03-07
Granted: 1992-04-28
Abstract: "Improved method for acylating a naphthalene compound"               * * * * *                          ABSTRACT  The acylation of a naphthalene compound, substituted in the 2-position  with  an  electron-donating group,  with  a  reactive derivative  of  a  lower aliphatic acid,  in an  aprotic organic diluent  and  in  the  presence  of  a  Friedel  Crafts  catalyst consisting  of  a  halide  of  an  element  having  at  least  two valences, is  improved when maintaining constant at any time the molar ratio of the naphthalene compound to the acylating agent and that of the acylating agent to the Friedel Crafts catalyst within specific ranges.
Patent CA-1334810-C (CA)
Inventor: KIELSMEIER LESTER O
IPC: A21D13/00
Filed: 1988-03-31
Granted: 1995-03-21
Abstract: 1. The method of producing baked pizza, comprising the steps of:       (a)  preparing cheese in the form of fresh cheese granules, said cheese consisting of at least one variety of mozzarella, or a blend of mozzarella with other cheese, said blend being adapted for use on baked pizza;           (b)  freezing said cheese granules by individual quick freezing thereof, the cheese granules being frozen at a tempera-ture below -10°F which freezes the granules so rapidly that the individual granules retain essentially the same moisture content and distribution as before freezing, the resulting frozen gran-ules being in free-flowing condition;           (c)  maintaining said granules in frozen free-flowing condition with said moisture substantially unchanged until the granules are used;           (d)  applying the granules so maintained to pizzas being prepared for baking without complete thawing of the gran-ules, at least the interiors thereof being frozen: and (e)  baking the pizzas with the applied unthawed granules and obtaining baked pizzas of good appearance and quality.
Patent CA-1307396-C (CA)
Title: Charging material preheater for preheating charging material for a metallurgical smelting unit
Inventor: WEBER RALPH
IPC: F27D13/00
Filed: 1988-04-15
Granted: 1992-09-15
Abstract: ABSTRACT OF THE DISCLOSURE:       A charging material preheater for preheating the charging material for  a  metallurgical  smelting  unit  comprising  a  container  for accommodating the charging material to be preheated, which is provided at the bottom with a grid comprising individual mutually spaced-apart grid bars which are passed outwardly through passage openings in the wall of the container and which are mounted in groups in support beams which are movable by an actuating means between a closed position in which the grid bars project into the interior of the container and a release position in which the grid bars are withdrawn from the interior of the container. In order to permit replacement of the individual grid bars during operation of the preheater and to reduce the obstacle presented by  jammed pieces of  charging material  to the withdrawal movement of the grid bars from the interior of the container into the release position, the grid bars are mounted rotatably about a horizontal axis in the support beam and supports are associated with the grid bars at  the  points of entry  into the container.  Control edges  at  the undersides of the grid bars provide that the grid bars can be caused to move with a pivotal motion when they are retracted from the interior of the container.
Patent CA-1315342-C (CA)
Title: Power amplifier deactivation system for multiplexed transmitters
Inventor: FLEMING KEITH
IPC: H04B7/14
Filed: 1988-06-03
Granted: 1993-03-30
Abstract: POWER AMPLIFIER DEACTIVATION SYSTEM          FOR MULTIPLEXED TRANSMITTERS            ABSTRACT OF THE DISCLOSURE       An improved transmitter is disclosed for multiplexed commu-nication systems of the type wherein a plurality of information sig-nals are transmitted to a satellite. The output amplifier of the transmitter comprises first and second stages wherein the second stage is adapted to receive power in response to a user provided con-trol signal. By removing power from the final stage of the output amplifier, as opposed to removing the information signal from the transmitter input as in prior art systems, greater noise isolation is acheived during inactive periods. A method for coupling the trans-mitter to the transmit antenna provides a feedback circuit for con-trolling the power output of the transmitter. The feedback circuit has a large time constant. When the transmitter is to he coupled to the transmit antenna, the input to the transmitter is removed for a predetermined time interval. Because of the large time constant of the feedback circuit, the power output of the transmitter is not adjusted during this period.
Patent CA-1300621-C (CA)
Title: 3-substituted benzazepines
Inventor: DAS JAGABANDHU
IPC: A61P11/00
Filed: 1988-06-10
Granted: 1992-05-12
Abstract: ABSTRACT     Benzazepine derivatives useful, for example, as cardiovascular agents, are disclosed.  These compounds have the general formula   and pharmaceutically acceptable salts thereof.
Patent CA-1335767-C (CA)
Inventor: HSU JAU Y
IPC: A23L7/10
Filed: 1988-08-11
Granted: 1995-06-06
Abstract: A process for the production of a convenient precooked rice product which requires a minimum of 8 minutes rehydration to a palatable state in boiled, hot water characterized in that rice grains are cooked so that their moisture content is from 55% to 75% by weight and dried at a temperature from 140°C to 185°C, in two stages firstly under stationary conditions to a moisture content of from 20 to 35% and secondly under agitated conditions to a moisture content of from 3 to 15%. The product may also be prepared for consumption by microwave cooking.
Patent CA-1323472-C (CA)
Inventor: PARRISH ROBERT G
IPC: D01D5/18
Filed: 1988-09-01
Granted: 1993-10-26
Abstract: TITLE PITCH CARBON FIBERS AND BATTS  ABSTRACT OF THE DISCLOSURE Mesophase pitch centrifugally spun as described over a lip yields upon stabilization and carbonization with or without graphitization carbon fibers with a lamellar microstructure.
Patent CA-1325794-C (CA)
Inventor: ZILIO TIZIANO
IPC: A47K10/18
Filed: 1988-10-31
Granted: 1994-01-04
Abstract: A PLASTIC BOX CONTAINING BAGS MADE OF POLYETHYLENE FOR HYGIENIC USE GROUPED TOGETHER WITH A DOUBLE FOLD                      ABSTRACT OF THE INVENTION           The plastic box comprises bottom 1 in the shape of a rectangular basin to be fixed onto a wall, cover 2 having rounded borders and central opening 9, the cover being snap applied onto the bottom.  An assembly of bags made of cardboard 3 is inserted in the interior of the bottom.  The assembly is easily replaced with a new assembly.  The assembly contains a plurality of bags for hygienic use made of polyethylene grouped together with a double fold in the shape of an "S" and are superimposed by intercalation of the extremities so that it is possible manually to remove the bags from the central opening 9 of the cover 2 to present after each removal the extremity of the successive bag.