baber/WOPTO huggingface dataset:
Patent CA-1318130-C (CA)
Title: Method of producing an optical fiber
Inventor: FLEMING DEBRA A
IPC: C03B37/014
Filed: 1988-06-16
Granted: 1993-05-25
Abstract: METHOD OF PRODUCING AN OPTICAL FIBER     Abstract The disclosed method of producing optical fiber comprises providing a silica-based glass rod of diameter D that comprises a core region of effective diameter d surrounded by cladding material (D/d typically > 2) and a silica-based porous jacketing tube, inserting the glass core rod into the porous tube, consolidating the porous material and sintering the jacketing tube onto the corerod such that a substantially pore-free optical fiber preform results. Fiber is then drawn from the preform in the conventional manner. Consolidation and sintering is carried out at a temperature below the softening temperature of the material,typically < 1600°C. In a preferred embodiment, the porous tube is produced by a sol/gel process that comprises missing colloidal silica (surface area 5-100 m2/g) and water, adding quaternary ammonium hydroxide to the sol such that a pH in the range 11-14 results, lowering the pH into the range 4-11 by addition of methyl or ethyl formate, casting the sol into an appropriate mold and permitting it to gel. The relatively low processing temperature is an advantageous feature of the inventive process that, inter alia, makes it easier to maintain the fiber core concentric with the cladding.
Patent CA-1299753-C (CA)
Inventor: BONNAVAL-LAMOTHE MICHEL
IPC: G09F3/00
Filed: 1988-06-17
Granted: 1992-04-28
Abstract: Method for simultaneous checking of the authenticity of an information support (1, 1') and of the non-falsification of said information (2), in which at least part of the information is parametrised and the data thus parametrised are stored in a memory or transferred in coded form (11) onto said support, and then subsequently, during each checking operation, said parametrised data are compared with the data parametrised at the moment of said check of the same part of the information under the same conditions, said method being characterised in that said parametrisation is carried out by an analysis, by means of an image-processing algorithm, of the defects of the imprint left on said support (1, 1') by the information writing device (2), said imprint being embodied by an electrical signal coming from a sensor (3, 3') for detecting said imprint. 
<??>The invention is used for the simultaneous checking of the authenticity of an information support and of the non-falsification of this information. 
<IMAGE>
Patent CA-1337163-C (CA)
Title: Polymeric particles and their preparation
Inventor: CHIP GERALD KWONG
IPC: C08F265/04
Filed: 1988-07-14
Granted: 1995-10-03
Abstract: Swollen core/sheath polymeric particles are disclosed having one or more voids in the core formed by reaction with a base such as sodium  hydroxide.  The  sheath  contains  styrene  or  similar  monomer polymerized in an amount greater than 25 mole per cent and the polymer is free of acid groups. The core contains acid groups.   Swelling is effected at an elevated temperature and in the absence of an organic solvent.         The  swollen  particles  on  drying  in  a  paint  or  other composition have air in the voids and act then as opacifying agents.
Patent CA-1329177-C (CA)
Title: Gas blending apparatus
Inventor: FALLON MERTON R
IPC: B67D1/04
Filed: 1988-08-23
Granted: 1994-05-03
Abstract: ABSTRACT         An  apparatus  for blending two  gases  together  in precisely adjustable proportions.   The apparatus includes a mechanically adjustable, blending subassembly adapted to receive the first gas at a predetermined pressure and a one to one force balanced pneumatic relay which is operated by the first gas and which meters the flow of the second gas to the blending subassem-bly at a pressure substantially equal to the pressure of the first gas being supplied to the blending subassembly.
Patent CA-1294558-C (CA)
Title: Aube de compresseur a lechettes d'extremite dissymetriques
Inventor: FETIVEAU JEAN Y L
IPC: F01D5/20
Filed: 1988-11-15
Granted: 1992-01-21
Abstract: AUBE DE COMPRESSEUR A LECHETTES D'EXTREMITE DISSYMETRIQUES Une aube (1) d'un étage mobile de rotor de compresseur porte à son extrémité libre (2) au moins une léchette (4) d'étanchéité qui est discontinue et constituée de deux parties ou demi-léchettes (4a, 4b) disposées de manière dissymétrique vue selon un plan de section transversale d'extrémité d'aube, avec ou sans recouvrement des extrémités internes de demi-léchettes. FIGURE 1.
Patent CA-1295382-C (CA)
Inventor: TATOMIR PAUL J
IPC: H01P1/212
Filed: 1988-11-23
Granted: 1992-02-04
Abstract: MODE SELECTIVE BAND PASS FILTER               ABSTRACT OF THE DISCLOSURE A   microwave   band   pass   filter   for   filtering electromagnetic signals has a set of cavities arranged serially, with a block of dielectric material filling each cavity to define regions of each cavity which are loaded with dielectric material and regions which are free of the dielectric material.  Each cavity may be viewed  as  a  resonator  for  a  fundamental  mode  of propagation of an electromagnetic wave while each block can be viewed as a resonator for higher-order modes of propagation of electromagnetic power.  The cavities are separated by walls having slots aligned with the free regions of the cavities for coupling power from the fundamental  mode  while  minimizing  interaction with power of the higher-order modes.  The filter enables the  construction  of  an  enlarged  passband  while inhibiting the presence of the spurious higher-order modes in a stop band bordering the  passband.
Patent CA-1333168-C (CA)
Inventor: MALEK EDWARD J
IPC: B65D83/14
Filed: 1989-03-10
Granted: 1994-11-22
Abstract: Disclosed is an aerosol actuator button for delivering a product such as an atomized air freshener liquid from a pressurized aerosol container wherein the spray pattern produced is tilted away from the central long axis of the actuator button and container.  Tilting of the spray pattern is accomplished by placing the actuator button orifice at the bottom of an asymmetrical conical depression which is open to the surrounding atmosphere.  More preferably, the orifice itself is asymmetrical with the shorter portion of the orifice being situated relative to the conical depression such that tilting of the spray is accentuated.  This configuration causes the atomized spray to be tilted away from the central long axis in spite of the fact that the orifice is concentric with the central long axis of the actuator button.  Also disclosed are dies for making such actuator buttons.
Patent CA-1299968-C (CA)
Title: Pneumatic control system for neonatal blood pressure monitoring
Inventor: SORENSEN JAY R
IPC: A61B5/0225
Filed: 1989-03-10
Granted: 1992-05-05
Abstract: PNEUMATIC CONTROL SYSTEM FOR NEONATAL       BLOOD PRESSURE MONITORING     Abstract of the Disclosure A control system for a blood pressure monitor having a blood pressure cuff, an air pump for inflating the cuff, a pressure transducer measuring the air pressure in the cuff, and a bleed valve for selectively venting the blood pressure cuff to reduce the cuff pressure.   The air pump leaks air when it is de-energized,  thereby inadvertently  leaking air from the blood pressure cuff when the air pressure in the cuff is to be maintained constant as an attempt is made to detect  blood  flow  beneath  the cuff.    A  two-way  valve  is placed in series with the air pump to isolate the air pump from the cuff when the pressure in the cuff is to be main-tained constant.   The two-way valve allows air to leak from the blood pressure cuff through the air pump when the cuff is to be vented.   The two-way valve and the bleed valve thus provide redundant venting of the blood pressure cuff.   The bleed valve and the two-way valve shift to their cuff-venting positions when they are de-energized so  that  the cuff  is assured of venting  in the event of  a power  loss  in said monitor.
Patent CA-1328509-C (CA)
Inventor: TAGUCHI TETSU
IPC: G10L19/06
Filed: 1989-03-28
Granted: 1994-04-12
Abstract: ABSTRACT          A linear predictive speech analysis-synthesis apparatus has an exciting source signal generator for generating an exciting source signal in response to linear predictive coefficients and a pitch parameter and a speech synthesizing filter for filtering the exciting source signal by a function defined by the linear predictive coefficients and a damping factor.  A cascade frequency characteristic of the spectral envelope frequency characteristic of the exciting source signal generator and the spectral envelope frequency characteristic of the speech synthesizing filter is designated to correspond to a spectral envelope characteristic of an input speech signal.  The apparatus is capable of synthesizing a speech signal having excellent sound quality while avoiding concentration of energy and securing the accordance of the spec-tral structure between an input speech signal and a synthesized output speech signal.
Patent CA-1335079-C (CA)
Title: Preventive and curative agents for acquired immune  deficiency syndrome (aids)
Inventor: TAKATSUKI KIYOSHI
IPC: A61K31/4015
Filed: 1989-07-11
Granted: 1995-04-04
Abstract: Preventive and curative agents for acquired immune deficiency syndrome and anti-HIV agents are described.          They contain a prolylendopeptidase inhibitor as an effective ingredient.
Patent CA-1338179-C (CA)
Title: Canine biscuits containing an inorganic pyrophosphate
Inventor: SPANIER HENRY C
IPC: A23K20/26
Filed: 1989-09-29
Granted: 1996-03-26
Abstract: This invention relates to dry animal biscuits and raw hide containing pyrophosphate and the process for preparing same, which will prevent the accumulation of tartar on the teeth of dogs.  The dog biscuit and raw hide may have a coating containing at least one pyrophosphate and the invention also relates to the process for preparing dry animal biscuits with a coating containing at least one pyrophosphate.
Patent CA-1334009-C (CA)
Inventor: HAYASHI YOSHIAKI
IPC: B65D1/02
Filed: 1989-09-29
Granted: 1995-01-17
Abstract: A biaxially blow-molded bottle-shaped container of synthetic resin includes a square cylindrical body portion. A panel wall for absorbing a reduced pressure generated in the bottle-shaped container is provided on a flat wall portion at each side of the body portion. Depressed cross grooves are provided spaced apart in parallel in a ridge line portion between the adjacent panel walls. The body portion may be cut-off at corners thereof to provide vertically elongated flat surfaces (4), and depressed cross grooves may be provided spaced apart in parallel in each flat surface.
Patent DK-166324-C (DK)
Inventor: KOTHS KIRSTON EDWARD
IPC: C12N15/26
Filed: 1985-03-26
Granted: 1993-08-23
Abstract: A process for recovering microbially produced IL-2 in a highly pure form from the cellular material of the microorganism that produced it comprising: disrupting the cell membranes of the microorganisms; extracting the disruptate with a chaotropic agent, such as urea, that selectively extracts microbial proteins from the cellular material; solubilizing the IL-2 in the solid phase of the extraction mixture with an aqueous solution of a solubilizing agent, such as SDS, containing a reducing agent; and separating the IL-2 from the resulting solution by an optional extraction with 2-butanol or 2-methyl-2-butanol followed by gel filtration chromatography, oxidizing the IL-2 and purifying the oxidized IL-2 by RP-HPLC.
Patent DK-161748-C (DK)
Inventor: MARHIC GERARD
IPC: B23K28/00
Filed: 1985-04-03
Granted: 1992-02-03
Abstract: The arc is struck by the initial short circuit between the electrode (2), the nozzle (3) and the work piece (7) by the excitation by a very low voltage source (31) of a relay (48) causing (between 43 and 42) the closure of the main contact (15), after which the relay (48) is maintained in its state by the welding or cutting current generating a voltage at the terminals of the inductance (23). Application in the control of a torch which is ignited by a short circuit between the electrode, nozzle and the torch.
Patent FI-72326-C (FI)
Inventor: HINTERWALDNER RUDOLF
IPC: C09J7/02
Filed: 1985-04-17
Granted: 1987-05-11
Abstract: The invention relates to novel hydrophobic and/or abhesive compositions, reactive thinners, plasticisers containing a monomeric, oligomeric and/or polymeric hydrocarbon compound with a high methyl group content, and/or derivatives thereof, having the formula <IMAGE>  in which     R1, R2, R3 and R4 are H, -CH3 and/or -CH2-CH3, A and B are H, -CH3, -CH2-CH3 and/or a radical of the above formula   2, and n is an integer between 0 and 20 000 000, preferably from 50 to 1 000 000, in particular from 50 to 500 000, and in which the methyl group content is at least 2.0, preferably from 3.0 to 4.0, mol per monomer or monomer unit. These novel compounds with a high methyl group content allow, in an economical manner, many inorganic, organometallic and/or organic substances to be rendered hydrophobic and/or abhesive or can be used to prepare films or sheets having hydrophobic and/or abhesive properties. The liquid compounds can also be employed as reactive thinners and/or plasticisers.
Patent FI-80771-C (FI)
Inventor: SAHLIN ANDERS
IPC: F16B25/10
Filed: 1986-01-22
Granted: 1990-07-10
Abstract: A wood screw is characterised in that its core (2) is generally cylindrical with a diameter which does not exceed that of a prebored hole, that it comprises two threads, viz. a main thread (3) and an auxiliary thread (4), of which the former protrudes considerably more from the circumference of the core than the latter and both of which are formed as sharp threads, i.e. are thin in relation to their depth, and that the front end of the cylindrical core is provided with a recess (5) having an edge (8) acting as a cutter.
Patent FI-84289-C (FI)
Inventor: SCHMIDT KARL HEINZ
IPC: E05D15/10
Filed: 1988-03-15
Granted: 1991-11-11
Abstract: Tilt-slide mechanism for moving a wing of a window or door to a parallel stop position and in this position for shifting it horizontally. The mechanism has lower and upper shift arms, wherein the lower arms 10 are in each case pivotally mounted (on the one hand) on the lower transverse wing beam and (on the other hand) on a traveling carriage. A releasable blocking device is provided for the lower shift arms when they are located in the parallel position. The blocking device consists of a two-armed hinged supporting lever and a guide pivot pin; its lower arm is shiftable along a guide slot on the wing. The guide pivot pin of the supporting lever combines with a detent recess to join the guide slot on the wing to the blocking device for fixing the lower shift arm relative to the wing in the parallel stop position. Further, the supporting lever has a pivot pin on its lever arm which interacts with a thrust bearing on the frame, whereby the blocking device can be released by the shift-and-stop movement of the wing from the blocking mode.
Patent FI-91410-C (FI)
Inventor: WASLEY JAN W F
IPC: C07D471/16
Filed: 1989-04-17
Granted: 1994-06-27
Abstract: Disclosed are the compounds of formula I <CHEM> wherein R1-R3 represent hydrogen or lower alkyl; m represents the integer 2 or 3; n represents the integer 1 or 2; Het represents a pyrrole or imidazole ring bonded at any two adjacent positions and optionally substituted by one or two of lower alkyl; and pharmaceutically acceptable salts of compounds of formula I wherein Het represents optionally substituted imidazole; their methods of preparation; pharmaceutical compositions thereof, and their use for treating cognitive disorders in mammals. They can be prepared for example by condensing a compound of the formula  Het min -(CH2)m-NH2  with a compound of the formula <CHEM> R
Patent FI-93674-C (FI)
Inventor: ENGSTROEM FOLKE
IPC: C10L10/04
Filed: 1989-12-08
Granted: 1995-05-10
Abstract: A method of burning solid fuel having low melting point alkaline compositions, such as alkali metal salts, particularly lignite and salty brown coal. The fuel is introduced into the reaction chamber of a circulating fluidized bed reactor, and is mixed prior to introduction to the reaction chamber with a reactant material capable of reacting with the low melting point alkaline compositions of the fuel to produce high melting point alkali metal compounds during combustion. The temperature in the reaction chamber is kept below the melting point of the formed alkali metal compounds. The reactant material comprises silica oxide or a metal oxide, or hydroxide, of the group consisting of aluminum, calcium, magnesium, iron, titanium, and mixtures of two or more thereof. Kaolin is particularly effective, especially when the molar ratio of Al/(Na and K) is at least 1.0.
Patent NO-145063-C (NO)
Inventor: LILJA JAN EVERT
IPC: B01F13/00
Filed: 1976-09-28
Abstract: A cuvette for sampling with a cavity which is defined by two planar surfaces which are placed or can be placed at a predetermined distance from one another. A reagent is contained in the cavity in an amount which is exactly determined in relation to the volume of the cavity. The sample is drawn into the cavity preferably by capillary force and mixed with the reagent therein spontaneously or by vibration, whereupon optical analysis takes place directly through the two planar surfaces.
Patent NO-168758-C (NO)
Inventor: COLLINS MALCOLM GEORGE
IPC: B65D39/04
Filed: 1986-04-28
Abstract: An end component for a spin welded container comprises a plug which is received within the container side wall for spin-welding thereto. An annular bead co-operates with a step on the wall to locate the plug. During welding, flash generated at the main weld area below the bead is prevented from escaping upwardly by the bead. A cavity is provided above the bead to retain any material which passes the bead or is formed by melting of the bead.
Patent NO-175343-C (NO)
Inventor: CALE KENNETH WILLIAM
IPC: A23F5/48
Filed: 1990-01-19
Abstract: The present invention relates to a soluble coffee aromatized with a collected fraction of beneficial coffee volatiles such as diacetyl and acetaldehyde released from the thermal hydrolysis of partially extracted roasted and ground coffee which has been subjected to atmospheric extraction to extract a majority of the arabinogalactan therefrom. The resulting soluble coffee comprises 25 to 125 ppm by weight acetaldehyde, 10 to 40 ppm by weight diacetyl, greater than 175 ppm total volatiles, a ratio of (acetaldehyde + diacetyl)/3-methyl butanal of 1.75 to 10 by weight and a ratio of acetaldehyde/3-methyl butanal of 1.5 to 10 by weight.
Patent NO-175678-C (NO)
Inventor: BABB DAVID A
IPC: C07C43/225
Filed: 1991-02-08
Abstract: Compounds have a structure represented by Formula I: CF2=CF-X-R-(X-CF=CF2)m wherein R represents an unsubstituted or inertly substituted hydrocarbyl group; each X is independently selected from the group consisting of groups having at least one non-carbon atom between R and -CF=CF2; and m is an integer of from 1 to about 3. Polymers formed from such compounds are also prepared. The compounds are preferably prepared by a method by a process comprising the steps of: (a) forming a salt having anion corresponding to a compound of Formula II: HX-R-(XH)m;  wherein X, R and m are as defined for Formula I; (b) reacting the salt with a 1,2-dihalo-1,1,2, 2-tetrafluoroethane wherein the halo groups are iodine, bromine, chlorine or mixtures thereof, at least one halo group being bromine or iodine, to form a compound of Formula III: Z-CF2CF2-X-R-(X-CF2CF2- Z)m  wherein X, R and m are as defined for Formula I and each Z is independently iodine or bromine; (c) eliminating the halogen atoms represented by Z to form the perfluorovinyl compound represented by Formula I.
Patent NO-177049-C (NO)
Inventor: EEUWIJK WILLI VAN
IPC: B61F/
Filed: 1991-04-19
Abstract: The driven running gear is intended for underslung rail vehicles with at least two articulated body units. It has two individual sets of running gear (2, 2') fitted with steering means (15, 15', 16). These are interconnected to pivot about their horizontal axis beneath the centre of the wheel axles (8, 8') by a link (3), which, at its ends, has transverse bearers (4, 4') to support a body unit to which are secured at least one motor (21, 21') and a brake (23, 23', 24, 24') which drive and brake the running gear (1) via telescopic transmission shafts (25, 25') and bevel gear drives (26, 26') fitted on the outsides of the wheels on both individual sets of running gear (2, 2'). Thus, when the vehicle is taking a curve, the angle formed between a leading body unit beneath which there is such a set of running gear and a trailing body unit also supported on an axle is transmitted to the steerable individual running gears units so that the pairs of wheels assume the desired radial position.
Patent NO-180409-C (NO)
Inventor: SWANDE JERKER
IPC: A63C1/32
Filed: 1996-05-14
Abstract: PCT No. PCT/SE94/01101 Sec. 371 Date Jun. 3, 1996 Sec. 102(e) Date Jun. 3, 1996 PCT Filed Nov. 18, 1994 PCT Pub. No. WO95/15199 PCT Pub. Date Jun. 8, 1995An ice-skate blade includes a central main runner and side-runners positioned on opposite sides of the main runner. The blade includes three zones separated in the longitudinal direction of the blade, namely an essentially central glide zone 8, 9, having one or more runners located on the same level, and a rear zone and a front zone having side-runners which extend on respective sides of the main runner and which are located at a higher level than the main runner, so as to grip the ice only when the blade is tilted. The side-runners extend along the full length of the main runner.
Patent AU-752185-C (AU)
Title: Binding molecules derived from immunoglobulins which do not trigger complement mediated lysis
Inventor: ARMOUR KATHRYN LESLEY
IPC: C07K19/00
Filed: 1999-05-07
Granted: 2003-09-18
Abstract: Disclosed are binding molecules which are recombinant polypeptides containing: (i) a binding domain capable of binding a target molecule, and (ii) an effector domain having an amino acid sequence substantially homologous to all or part of a constant domain of a human immunoglobulin heavy chain; characterized in that the binding molecule is capable of binding the target molecule without triggering significant complement dependent lysis, or cell mediated destruction of the target, and more preferably wherein the effector domain is capable of specifically binding FcRn and/or FcgammaRIIb. These are generally based on chimeric domains which are derived from two or more human immunoglobulin heavy chain CH2 domains domains. In preferred embodiments the regions 233-236, and 327-331, are modified, as are further residues to render the molecule null allotypic. Also disclosed are nucleic acids, host cells, production processes and materials, and uses. Pharmaceutical preparations are also disclosed.
Patent CA-2002070-C (CA)
Inventor: SHERMAN JAMES F
IPC: F16H3/54
Filed: 1989-11-02
Granted: 1993-11-16
Abstract: MULTISPEED POWER TRANSMISSION            Abstract of the Disclosure A multispeed transmission has a planetary gear arrangement and two pair of countershaft gears.  The countershaft gears are drivingly connectible between the output of the planetary gear arrangement and the output shaft of the transmission.  One pair of the countershaft gears provides a rotating reaction for the planetary during one speed ratio and a reduction ratio during at least one other speed ratio.  The other pair of countershaft gears provides a reduction ratio from the planetary during the one speed ratio and a single reduction ratio between the transmission input and the transmission output in at least one other speed ratio. The planetary transmission is controlled by clutches and brakes to establish a reduction ratio, a direct drive and an overdrive ratio.