baber/WOPTO huggingface dataset:
Patent NO-166086-C (NO)
Inventor: PIVOTTO BRUNO
IPC: C08F279/04
Filed: 1986-05-22
Abstract: During the reaction of grafting of styrene and acrylonitrile to polybutadiene, the conversion of the graft monomers is increased from the values of 92 : 94% usually obtained, to values very close to 98%, by carrying out a redox-type reaction additional to that provided by the process, in the presence of an additional aliquot of acrylonitrile and of catalytic system.
Patent NO-164760-C (NO)
Inventor: LINDEN UNTO
IPC: B60C/
Filed: 1988-07-25
Abstract: PCT No. PCT/FI87/00154 Sec. 371 Date Aug. 24, 1988 Sec. 102(e) Date Aug. 24, 1988 PCT Filed Nov. 17, 1987 PCT Pub. No. WO88/03876 PCT Pub. Date Jun. 2, 1988.The invention concerns a fixed spike or a sleeve-mounted spike, fitted on a vehicle tire. The fixed spike or sleeve-mounted spike (20) has been so shaped that when the spike is in its state at rest, its region (A) in contact with rubber (14) is substantially smaller than the total surface area of the respective region of the spike. Flow, caused by the visco-elastic properties of the rubber (14), of the rubber (14) around the fixed spike or the sleeve-mounted spike (20), is arranged to soften the first contact between the tip (23) of the fixed spike or rivet (21) of the sleeve-mounted spike (20) and the road surface.
Patent NO-178199-C (NO)
Inventor: DIRLAM JOHN P
IPC: C12P19/58
Filed: 1990-08-07
Abstract: An acidic polycyclic ether antibiotic, having structure established by X-ray crystallography, is formed by fermentation of a novel microorganism, Actinomadura sp. ATCC 53708. This novel antibiotic is useful as an anticoccidial in chickens, in the prevention or treatment of swine dysentery, and as a growth promotant in cattle and swine.
Patent NO-174469-C (NO)
IPC: A61P25/28
Filed: 1990-09-27
Abstract: The present invention relates to compounds of the formula I, <CHEM> where X is hydrogen, halogen or loweralkyl; and R1, R2 and R3 are each independently hydrogen, loweralkyl, cycloalkyl, arylloweralkyl or aryl, or alternatively the group -NR2R3 taken as a whole constitutes <CHEM> R4 being hydrogen or loweralkyl and a process for their preparation. The compounds of the invention show central cholinergic innervative properties for treating various memory dysfunctions and can, therefore, be used as medicaments.
Patent NO-180238-C (NO)
Inventor: MAJ PHILIPPE
IPC: C08L77/06
Filed: 1992-12-15
Abstract: New transparent amorphous compositions and, more particularly, transparent amorphous compositions exhibiting high resistance to chemical agents (solvents), and objects manufactured from these . These compositions comprise two polyamides consisting of aliphatic units, teraphthalic and/or isophthalic acid and cycloaliphatic diamine. One of the two polyamides has a high content of aliphatic unit while the other has a low content of aliphatic unit.
Patent NO-180523-C (NO)
Inventor: JOKINEN MIKKO
IPC: D21B1/02
Filed: 1993-09-01
Abstract: PCT No. PCT/FI92/00038 Sec. 371 Date Sep. 13, 1993 Sec. 102(e) Date Sep. 13, 1993 PCT Filed Feb. 12, 1992 PCT Pub. No. WO92/16311 PCT Pub. Date Oct. 1, 1992.The invention relates to an apparatus for separating finer and coarser material fractions of bulk material from each other, especially for separating sawdust from wood chips, the apparatus comprising a plurality of successive rollers (2) rotating about parallel axes of rotation, the upper surfaces of the rollers providing a path for the material to be screened; and a hopper for feeding the material to be screened to the infeed end of the path. There are radial and essentially axial grooves (5, 6) on the surface of the rollers (2), the grooves forming teeth (7) onto the surface of the rollers (2), and the teeth (7) of each roller (2) interdigitate with the radial grooves (5) of the adjacent roller (2), whereby the teeth (7) and radial grooves (5) form slots (8) between them for the particles of the material to be screened. With this construction it is possible to prevent the particles that are bigger than the grain size desired from passing through the screen.
Patent CA-2008482-C (CA)
Inventor: HOOD PAUL F
IPC: D21F1/00
Filed: 1990-01-24
Granted: 1995-01-10
Abstract: This disclosure shows a novel  shaped pintle wire for papermachine clothing.  The intended use of the pintle wire is to close a pin seam by joining the loops formed by machine-direction yarns at each end of an open-ended papermachine fabric.  The present pintle has a non-circular cross section with a major dimension and a minor dimension.   The major dimension stretches the loops and reduces seam gap.  The minor dimension is approximately equal to the thickness of the fabric under load.  Both serve to reduce the marking of the paper sheet by the seam region.
Patent CA-2011192-C (CA)
Title: Acoustic borehole logging
Inventor: MANZI STEPHEN JOSEPH
IPC: G01V1/44
Filed: 1990-02-28
Granted: 1999-03-23
Abstract: An acoustic borehole logging system employs an acoustic transmitter excited by a sweep frequency tone burst to produce an acoustic output having a free-field frequency spectrum of at least one resonant frequency of vibration.  A closely-spaced acoustic receiver detects a borehole frequency spectrum that is representative of the acoustic transmitter free-field frequency spectrum altered by the effects of the properties of the subsurface formation materials comprising the borehole wall.  Such detected borehole frequency spectrum is recorded in correlation with depth as a log of the material properties of the subsurface formations surrounding the borehole.
Patent CA-2011709-C (CA)
Title: Method of chemical-mechanical polishing an electronic component substrate and polishing slurry therefor
Inventor: CARR JEFFREY W
IPC: H01L21/306
Filed: 1990-03-07
Granted: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed  is  a method  of  chem-mech polishing  an electronic component substrate. The method includes the following steps; obtaining a substrate having at least two features thereon or therein which have a different etch rate with respect to a particular etchant; and contacting the substrate with a polishing pad while contacting the substrate with a slurry containing the etchant wherein the slurry includes abrasive particles,  a transition metal chelated salt and a solvent for the salt.  The chem-mech polishing  causes  the  at  least  two  features  to  be substantially coplanar. Also disclosed is the chem-mech polishing slurry.
Patent CA-2018149-C (CA)
Title: Aminoketone compounds
Inventor: GOTO GIICHI
IPC: C07D295/10
Filed: 1990-06-04
Granted: 2002-07-02
Abstract: An aminoketone compound of the formula   wherein ring A' means a five through eight-membered cyclic group which may be substituted and may contain one or two hetero atom(s) of O, S, N, as the ring-constituents; R1' means a hydrogen atom or a hydrocarbon residue which may be substituted; R2' means a hydrogen atom or a lower alkyl group; R3' means an aromatic group which may be substituted; R4' means a hydrogen atom, a lower alkyl group or aromatic group which may be substituted; n' means an integer of 2 to 7, or a salt thereof, is useful as an cholinesterase inhibitors and a cerebral function ameliorating agent.
Patent CA-2021570-C (CA)
Title: Polysiloxane-grafted copolymer topical binder composition with novel hydrophilic monomers and method of coating therewith
Inventor: GARBE JAMES E
IPC: A61K9/70
Filed: 1990-07-19
Granted: 2002-12-17
Abstract: A novel composition which can serve as a pressure-sensitive or non-pressure-sensitive adhesive at room temperature (20°C) and which comprises a vinyl polymeric backbone with grated pendant siloxane polymeric moieties. Also disclosed are topical binder compositions containing the novel composition.
Patent CA-2029172-C (CA)
Title: Dressing including an indicator
Inventor: FLAM ERIC
IPC: A61L15/56
Filed: 1990-11-01
Granted: 2002-04-02
Abstract: A dressing having a skin or wound contacting surface is provided with an indicator means on the opposite surface. The indicator means is capable of sensing the condition of the skin or wound underlying the dressing and conveying the information to the health care professional eliminating the need to frequently change the dressing.
Patent CA-2030823-C (CA)
Title: Method and apparatus for reducing the nitric oxide concentration in the waste gas flow of combustion processes
Inventor: MARTIN JOHANNES JOSEF EDWARD
IPC: B01D53/34
Filed: 1990-11-26
Granted: 1997-09-30
Abstract: The method for reducing the nitric oxide concentration in the waste gas flow of combustion processes  consists of the introduction of chemicals, e.g, ammonia, sal ammonia, urea, calcium cyanamide, into the waste gas flow, wherein the waste gas flow is marked by an additional compulsorily produced strong turbulence and the waste gas flow is compressed prior to this turbulence zone.  The introduction of the treatment medium is effected shortly before the turbulence zone and the waste gas flow is relaxed and calmed subsequent to the turbulence zone.  In order to implement this method, a furnace is provided which comprises a grate (5) and a waste gas flue consisting of an ascending waste flue (10) and a descending waste gas flue (12) adjoining the latter.  The current flow of the waste gas flow is substantially S-shaped proceeding from the furnace grate to the downwardly directed waste gas flue (12), wherein the change of direction in the lower area is substantially smoother than in the reversing space (11).  In the upper portion (16) of the waste gas flue the waste gas flow is compressed by means of corresponding inclination and consequent constriction of the cross section of the waste gas flue.  Spray nozzles (26) are provided at the commencement of the upper portion (16) of the ascending waste gas flue in order to introduce chemicals. The introduction of the chemicals is effected shortly before the compression and the production of strong turbulence.
Patent CA-2031643-C (CA)
Title: Bch code decoder and method for decoding a bch code
Inventor: KIMURA TOMOHIRO
IPC: H03M13/00
Filed: 1990-12-06
Granted: 1995-06-13
Abstract: There is disclosed a BCH code decoder for correcting a natural number N of error bits occurring in a code sequence composed of bits encoded by a BCH encoding method, and a method therefor.  In the BCH code decoder and the BCH decoding method, first to N-th syndromes are generated from an inputted code sequence encoded by the BCH encoding method, respectively, and first to N-th check codes are generated by subtracting predetermined syndromes to be calculated when an error occurs at a predetermined bit of said code sequence from said first to N-th syndromes, respectively.  Thereafter, error correction information is generated when a number of error bits represented by said first to N-th syndromes is equal to the sum of one and a number of error bits represented by said first to N-th check codes, and one or more error bits of said inputted code sequence are corrected according to said error correction information, thereby outputting the decoded code sequence.
Patent CA-2034041-C (CA)
Title: Flotation mattress pad
Inventor: WEST GORDON W
IPC: A47C27/08
Filed: 1990-10-10
Granted: 1994-06-21
Abstract: ABSTRACT OF THE DISCLOSURE       A relatively shallow mattress for a bed which has three integral parts:  an inner bladder,  an outer bladder and a mattress  cover.    The  inner  bladder  is  formed  from  a rectangular top and bottom side welded together along the edges.  The top side contains a valve.  The outer bladder is effectively  a  safety  cover  for  the  inner  bladder.    It surrounds the inner bladder and but for a circular opening which allows access to the valve on the top side of the inner bladder, it is fluid tight.  It is made in a similar fashion to the inner bladder which it permanently encloses.   The mattress cover has an upper surface made of a quilted ticking.          This ticking incorporates a thermal barrier layer.    The mattress cover has a bottom and sides made from a relatively light  woven  cloth  fabric.    The  mattress  cover  totally surrounds the bladder.  An elongate zipper along the edge of the top surface allows insertion of the bladders and access to the valve used for filling.
Patent CA-2034732-C (CA)
Title: Weatherable graft polymers having improved impact retention and improved melt flow
Inventor: CHEN CHUAN-JU
IPC: C08L25/12
Filed: 1991-01-22
Granted: 1999-12-28
Abstract: Weatherable thermoplastic polymeric compositions are formed by blending weatherable grafted rubber composition with an aliphatic diester selected from the group consisting of dialkoxyalkoxyalkyl diesters and dialkoxydialkoxyalkyl diesters of aliphatic dicarboxylic acids containing 4 to 8 carbon atoms and 0-2% by weight based on the weight of the polyblend of a silicone fluid.
Patent CA-2036078-C (CA)
Inventor: AMANO FUMIO
IPC: H04M9/08
Filed: 1991-02-11
Granted: 1994-07-26
Abstract: A sub-band acoustic echo canceller includes a first division and decimation process part for dividing a reception signal from a line into first band signals of N channels and for decimating each of the first band signals to output decimated first band signals in a form of complex signals, where N is an integer greater than or equal to two, a second division and decimation process part for dividing a transmission signal into second band signals of N channels and for decimating each of the second band signals to output decimated second band signals in a form of complex signals, an echo canceller group made up of a group of echo cancellers for generating a pseudo echo in each band based on a corresponding one of the decimated first band signals received from the first division and decimation process part by referring to a corresponding one of the decimated second band signals received from the second division and decimation process part and for outputting a residual signal in each band by subtracting the pseudo echo of one band from the decimated second band signal of the same band, and an interpolation and synthesis process part for subjecting the residual signals received from the echo canceller group to interpolation and synthesis to output a synthesized residual signal which is transmitted to a line as the transmission signal, where the echo canceller group carries out an echo cancelling operation for each band in a complex signal region.
Patent CA-2044427-C (CA)
Title: Magneto-optical disk and manufacturing methods thereof
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/105
Filed: 1991-06-12
Granted: 1997-02-11
Abstract: A  magneto-optical  disk  according  to  the  present invention has a substrate, a recording layer formed on the substrate  and  an  outer  layer formed  on  the  recording layer, above which a floating head is hovered.  The outer layer   is   constituted  of   a  protective   layer,   an antisticking layer for head, having a texture formed on its surface and other layers.  The magneto-optical disk is designed such that, when rotated at a constant angular velocity,   the   thickness   of   the   outer   layer   is substantially inversely proportional to a radial position r on the magneto-optical disk raised to the 1/2nd power.          In the formation of the outer layer, a screen whose meshes become gradually finer from the innermost portion toward the circumferential portion of the magneto-optical disk is employed based on the screen printing-technique.  Further, photo hardening resin is used as the outer layer,  and simply by changing a wavelength or irradiation amount of light to be applied thereto, a texture is readily formed on the surface of the outer layer.   By the use of the present   invention,   stable   recording,   erasing   and re-writing  operations  are  achieved,  and  it  becomes possible to prevent the floating head from sticking to the magneto-optical disk and reduce the cost thereof.
Patent CA-2045364-C (CA)
Title: Magneto-optical disc
Inventor: YOSHIDA TADAO
IPC: G11B11/105
Filed: 1991-06-25
Granted: 2000-03-28
Abstract: A magneto-optical disc having an opticalmagnetic recording layer formed on the surface of a transparent base plate opposite to its beam incident surface. A layer excellent in lubriciousness is formed in superimposition on the opticalmagnetic recording layer to enable the magnetic head to be in direct sliding contact with the disc surface to provide for stable recording and improved recording performance as well as to reduce adverse effects caused by deposition of foreign matter such as dust and dirt.
Patent CA-2049136-C (CA)
Inventor: PEDERSEN HARRY E
IPC: B62D5/32
Filed: 1991-08-13
Granted: 1994-10-04
Abstract: Abstract A two-loop steering system for motor vehicles comprises a main loop (8) and an auxiliary loop (9). A change-over device (24) connects the steering handwheel (7) in normal operation to the main loop steering unit (10) and in the event of a fault in the main loop connects it to the auxiliary loop steering unit (17).   Each motor chamber (4, 5) is connected with the help of a change-over valve (34, 35) in normal operation to a motor line (11, 12) of the main loop steering unit and in the event of a fault in the main loop to the associated motor line (18, 19) of the auxiliary loop steering unit.   In this manner sluggish steering is avoided, whilst nevertheless ensuring that in an emergency the steering system can continue to be operated safely.
Patent CA-2054136-C (CA)
Title: Hearing aid
Inventor: RIBIC ZLATAN
IPC: H04R25/00
Filed: 1991-10-24
Granted: 1995-04-25
Abstract: A hearing aid with a microphone, with  at least one amplifier fed with  the  signals  from  said microphone,  whereby  said amplifier cooperates  with a  filter  of a  higher order  for influencing the  frequency response,  and with  a loudspeaker which transforms the amplified signals  into soundwaves. This filter (3) can be arranged in the conventional manner between two amplification  stages  or in  the  feedback  loop of  the amplifier (6). In  order to allow  the optimal  adjustment of the frequency response to  the respective requirements  it is provided in this hearing aid that the  filter (3) is arranged as  a  multiple  filter  with  a  biquadratic  structure  and comprises  at   least  two   integrators  and   an  inverting amplifier, whereby  the active  elements of  their components are formed by transistors, preferably single transistors (T1, T2, T3).  The feedback loop  of the  amplifier (6)  is guided through an  adjustable  potentiometer  (RA) for setting  the filter emphasis or de-emphasis and in  the filter circuit (3) there  is  arranged  an  adjustable  potentiometer  (RF) for setting the mid-frequency of the filter (3).
Patent CA-2054166-C (CA)
Title: Process for producing brown covering layers on copper
Inventor: PROTZER HELMUT
IPC: C23C22/00
Filed: 1991-10-24
Granted: 1999-08-17
Abstract: A method for producing a uniform and adherent brown covering layer (brown patina) on surfaces of semifinished products made of copper, particularly on rolled tapes or sheets used in building construction. The surface of the copper semifinished product is first roughened by means of a mechanical treatment. The copper semifinished product is then heat treated at a temperature lying within the temperature range of 150 to 650°C for the duration of 0.1 to 30 minutes.      The copper semifinished product can be advantageously subjected to a chemical postoxidation treatment immediately following the heat treatment.
Patent CA-2059635-C (CA)
Title: Shoe construction having improved back part fit
Inventor: ROSEN HENRI E
IPC: A43B17/00
Filed: 1990-07-27
Granted: 2000-07-18
Abstract: A means which functions to improve the fit of shoes is described whereby the shoe is urged forward on the foot to minimize slippage of the backpart of the shoe relative to the heel of the wearer's foot.
Patent CA-2061138-C (CA)
Title: Angled fixture and display assembly
Inventor: SALRIN JOHN P
IPC: A47F5/08
Filed: 1992-02-13
Granted: 1996-07-23
Abstract: There  is  provided  an  angled  display  assembly having  a  plurality  of  product  display  fixtures attached  to  and  spaced  along  a  polygonal  display standard.   Each of the display fixtures includes an inverted,   generally   U-shaped   mounting   bracket designed to slidably clamp over the display standard, and  a  support  arm  extending  outwardly  from  the mounting  bracket  and  having  proximal  and  distal ends.  The distal end of the support arm is attached in a bent configuration to the proximal end so that, in clamped position, the distal end extends outwardly from the standard at a predetermined, non-normal and non-parallel angle thereto.  A support lock extends downwardly  away  from  the  mounting  bracket  and includes a locking leg spaced from the support arm which  interacts  with  the  bottom  portion  of  the standard  to  lock  the  display  fixture  thereto  and offset   rotational  moments   imposed  by  supported products.
Patent CA-2062350-C (CA)
Title: Process for recovery of nickel and magnesium from a naturally occurring material
Inventor: RAMIREZ DE AGUDELO MARIA MAGDA
IPC: C22B23/00
Filed: 1992-03-05
Granted: 1998-06-16
Abstract: A process is disclosed for recovering nickel and magnesium form natural materials by extracting them in the presence of a spent sulfur containing iron based hydroconversion catalyst, under oxidative conditions.
Patent CA-2063922-C (CA)
Title: Selective transmission of encoded voice information representing silence
Inventor: WILSON ALAN L
IPC: H03G3/34
Filed: 1992-03-25
Granted: 1996-09-17
Abstract: Discrete packets (306) containing encoded voice information are transmitted within frames (301 and 302) in a repetitive manner until all voice information has been sent. Following transmission of all packets containing such voice information, at least a predetermined number of additional packets (401) are then transmitted, which additional packets represent silence. Following this, a disconnect signal (304) is transmitted. So configured, loss of the disconnect signal due to fading or other communication pathway disturbances will not necessarily lead to audibilization of undesired sounds, as the decoding protocol at the receiver (200) provides for reprocessing of recently received packet information in the absence of newly available reliable information. Hence, the silence information is continually reprocessed until either reliable information is again available or a time out sequence concludes.
Patent CA-2068518-C (CA)
Title: Air conditioner for railway vehicles
Inventor: SUZUKI TAKANE
IPC: B61D27/00
Filed: 1991-09-13
Granted: 1995-12-26
Abstract: An air conditioner for railway vehicles controlled in accordance with the air temperature in the car and data on at least one selected from the group consisting of underfoot temperature, radiant heat, air flow, humidity, outside air temperature, number of passengers and door opening opera-tion.  In this way, environment conditions which momentarily change are detected so as to prevent excessive cooling or heating in the car.
Patent CA-2070746-C (CA)
Title: Spray nozzle with recessed deflector surface
Inventor: HARUCH JAMES
IPC: B05B1/26
Filed: 1992-06-09
Granted: 2002-08-13
Abstract: A spray nozzle assembly having a spray tip formed with an elongated, axially extending cylindrical chamber communicating with the liquid supply and being formed with a cross slot which intersects the chamber at a location intermediate the ends thereof for defining a discharge orifice, a deflection surface on a downstream side of the discharge orifice for directing liquid in a direction transversed to the axis of the chamber, and a packet extending downstream of the deflector surface a distance significantly greater than the diameter of the chamber. In one embodiment, the spray tip has a pre-orifice of about one half the diameter of the chamber adjacent an upstream in thereof, in another embodiment, the chamber is disposed with its axis at an angle to the vertical and the cross slot extends upwardly in substantially vertical relation for defining a vertical deflection surface, and in still another embodiment the cross slot is formed with a round that extends beyond the axis of the chamber substantially to the perimeter thereof and has a radius of about twice the diameter of the chamber.