baber/WOPTO huggingface dataset:
Patent CA-1321864-C (CA)
Inventor: OSTAPCHENKO GEORGE J
IPC: B32B27/36
Filed: 1987-10-22
Granted: 1993-09-07
Abstract: TITLE           VAPOR-PERMEABLE, WATERPROOF BICOMPONENT STRUCTURE                 ABSTRACT OF THE DISCLOSURE         A bicomponent film of a hydrophobic layer and a hydrophilic layer of copolyetherester elastomers bonded together which permits differential transfer of water vapor to prevent buildup of moisture comprising:          (A)  a continuous layer of a hydrophobic elastomer 0.05-0.8 mil thick and having a water vapor transmission rate of 400-2500 gm?mil/m2/24 hrs. according to ASTM E96-66 (Procedure BW), said hydrophobic elastomer is a copolyetherester elastomer or a mixture of two or more copolyetherester elastomers having a multiplicity of recurring long-chain ester units and short-chain ester units joined head-to-tail through ester linkages, said long-chain ester units being represented by the formula      (I) and said short-chain ester units being represented by the formula:                       (II) where G is a divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide)glycol having an average molecular weight of about 400-3500, and further, the amount of ethylene oxide groups incorporated in the copolyetherester or mixture of two or more copolyetheresters by the poly(alkylene oxide)glycol is not greater than about 20 weight percent based upon the total weight of the copolyetherester or mixture of two or more copolyetheresters; R is a divalent radical remaining after removal of carboxyl groups from a dicarboxylic acid having a molecular weight less than 300; D is a divalent radical remaining after removal of hydroxyl groups from a diol having a molecular weight less than about 250;  and said hydrophobic copolyetherester or mixture of two or more copolyetheresters has from about 25-80 weight percent short-chain ester units;          (B)  a continuous layer of a hydrophilic elastomer 0.3-6 mil thick and having a water vapor transmission rate of at least 3500 gm?mil/m2/24 hrs. according to ASTM E96-66 (Procedure BW), said hydrophilic elastomer is a copolyetherester elastomer or a mixture of two or more copolyetherester elastomers having a multiplicity of long-chain ester units and short-chain ester units joined head-to-tail through ester linkages represented by formulae (I) and (II) above and having the values given above with the proviso that the amount of ethylene oxide groups incorporated in the copolyetherester or mixture of two or more copolyetheresters by the poly(alkylene oxide)glycol is from about 25-68 weight percent based on the total weight of the copolyetherester or mixture of two or more copolyetheresters, and the hydrophilic copolyetherester or mixture of two or more copolyetheresters contain about 25-80 weight percent short-chain ester units; and said bicomponent film of the hydrophobic and hydrophilic layers has a separation ratio for water vapor of at least 1.2, preferably at least about 1.4, as determined by ASTM E96-66 (Procedure BW).
Patent CA-1304376-C (CA)
Title: Imidazolidinone compound and processes for preparation thereof
Inventor: TAKEDA MIKIO
IPC: C07D417/04
Filed: 1987-11-13
Granted: 1992-06-30
Abstract: Abstract:            Imidazolidinone compound and processes for preparation thereof Disclosed are an imidazolidinone compound of the formula:                             wherein R represents a substituted or unsubstituted 5- or 6-membered nitrogen-containing heterocyclic monocyclic group; the ring A represents a substituted or unsubstituted phenyl group; Y represents vinylene group or ethynylene group; m represents 1 to 6; n represents 0, 1 or 2; and Q represents methylene group or a single bond, or a salt thereof, a process for preparing the same and a pharmaceutical composition comprising the same as an active ingredient.
Patent CA-1310511-C (CA)
Inventor: SCHMOOCK ROY F
IPC: G01F1/60
Filed: 1987-12-07
Granted: 1992-11-24
Abstract: PERMANENT MAGNET FIELD                Inventor: Roy F. Schmoock, a citizen of the United States of America and resident of Yardley, PA.                    ABSTRACT OF THE DISCLOSURE                 An electromagnetic flowmeter in which the fluid being metered is conducted through a flow tube having a pair of elec trodes, the fluid intersecting a magnetic field whereby the re-sultant voltage induced in the fluid is transferred to the electrodes to provide a signal indicative of flow rate. The magnetic field is created by a pair of pole pieces formed of "hard" magnetic material. The pieces are placed at diametrically-opposed positions and are magnetically interconnected to define a magnetic circuit. Excitation pulses which alternate in polarity are periodically applied by respective magnet drivers to coils wound about the pole pieces to alternately magnetize the pieces in one direction and remagnetize the pieces in the reverse direction, thereby establishing the desired field. The duty cycle of the pulses is such as to reduce the average power requirements to a very low level. In order to operate the flowmeter from a standard 50 or 60 Hz power line, the line voltage is divided by an odd integer to permit the magnet drivers to be alternately triggered on the peak positive and peak negative crests of the power line voltage.
Patent CA-1303148-C (CA)
Title: Non-recursive half-band filter
Inventor: GOECKLER HEINZ
IPC: H03H17/06
Filed: 1988-02-17
Granted: 1992-06-09
Abstract: ABSTRACT            The invention relates to a non-recursive half-band filter and permits the conversion of a real input signal into a complex output signal in that its pulse response is modulated onto the complex carrier with a frequency of 1/4 or 3/4 the sampling frequency and whereby the zero phase of this frequency is an integral multiple of .pi./2.  Furthermore, it permits the conversion of a complex input signal into a real output signal in that its pulse response is modulated onto the complex carrier with a frequency of the input sampling rate and whereby the zero phase of this frequency is an integral multiple of .pi./2 and whereby the sampling frequency is retained unchanged.
Patent CA-1293181-C (CA)
Title: Venetian blind control
Inventor: MAROCCO NORBERT
IPC: E06B9/322
Filed: 1988-02-29
Granted: 1991-12-17
Abstract: ABSTRACT    A clutch assembly for a venetian blind and having a drive member, a driven member, a first engagement device on the drive member, a second engagement device on the drive member, adapted to cooperate to transmit rotation to the blind, and the first and second engagement devices being disengageable in response to over-rotation to discontinue transmission of rotation to the blind. Also disclosed is a connector coupling for connecting between a venetian blind gear drive and a venetian blind wand, and having a pair of resilient fingers, the fingers being received in an opening in a gear drive shaft.
Patent CA-1293000-C (CA)
Title: Method for producing m-ethyldiphenyls
Inventor: SHIMIZU ISOO
IPC: C07C6/12
Filed: 1988-03-08
Granted: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE           A method for producing efficiently a highly pure 1-(m-ethylphenyl)-1-phenylethane or m-ethylphenylphenyl-methane which are used as the starting materials for preparing medicines and other organic compounds.  The method comprises the step of reacting a diaryl compound with benzene or alkylbenzene in the presence of an acid catalyst selected from the group consisting of AlC13, AlBr3, HFBF3 complex and Y-type zeolites.
Patent CA-1320075-C (CA)
Title: Fibre reinforced plastics articles
Inventor: BAYLY ANDREW E
IPC: B44D3/16
Filed: 1988-03-11
Granted: 1993-07-13
Abstract: ABSTRACT      An air permeable sheet-like structure comprising 5% to 50% by weight of reinforcing fibres, and between about 5 and about 50 millimetres long, and from 50% to 95% by weight of wholly or substantially unconsolidated particulate non-cross-linked elastomeric material, and in which the fibrous and elastomeric components are bonded into an air permeable structure.
Patent CA-1332513-C (CA)
Inventor: NAKAI YOSHIHIRO
IPC: C01G29/00
Filed: 1988-03-30
Granted: 1994-10-18
Abstract: A method of manufacturing a superconductor is carried out by first preparing a material composed of Y1Ba2Cu3O7.          This material is heated/molten in a platinum crucible. A melt thus obtained is drawn out from a high-temperature frame provided above the platinum crucible and heated to a temperature exceeding the melting point of the material.          The melt thus drawn out is cooled by natural standing, to be solidified. As the result, an elongated superconductor composed of Y1Ba2Cu3O7 can be obtained. This superconductor enters a superconductive state at 90 K.
Patent CA-1286812-C (CA)
Title: Telephone and data overvoltage protection apparatus
Inventor: MCCARTNEY THOMAS
IPC: H02H9/04
Filed: 1988-04-14
Granted: 1991-07-23
Abstract: TELEPHONE AND DATA OVERVOLTAGE PROTECTION APPARATUS      Abstract of the Disclosure Overvoltage protection circuits are provided for coupling a subscriber's station to first and second conductors connected to a telephone system or other similar communications source.  The overvoltage protec-tion circuits include first circuitry connected between the first and second conductors for conducting current at a first breakdown voltage and for blocking current below the first breakdown voltage; second circuitry for conducting current at a second breakdown voltage and for blocking current below the second breakdown voltage; and circuitry connected in series between the first and second circuitry for filtering voltage signals on the first and second conductors responsive to the second circuitry conducting current.  The over-voltage protection circuits are effective for suppress-ing noise and transient voltage signals occurring above the data signal and do not require a transient voltage signal to exceed the ring signal for operation.
Patent CA-1338427-C (CA)
Title: Nourishing products enriched with nucleosides and/or nucleotides for infants and adults and processes for their preparation
Inventor: HERNANDEZ ANGEL GIL
IPC: A23L33/00
Filed: 1988-05-27
Granted: 1996-07-02
Abstract: Nourishing products enriched with nucleosides and/or nucleotides for infants and adults and processes for their preparation. The invention relates to milk and non-milk infant formulas, and nourishing products for adults, in which the addition of nucleosides and/or nucleotides provides enhanced effects and properties. Also the processes for the preparation of these products are described.
Patent CA-1326443-C (CA)
Inventor: PACKMAN ELIAS W
IPC: A61P1/00
Filed: 1988-07-07
Granted: 1994-01-25
Abstract: ABSTRACT           Hemorrhoidal compositions containing disaccharide polysulfate-aluminum compounds such as sucralfate, above or in combination with other hemorrhoidal products, as an agent effective for alleviating the symptoms of anorectal disease when topically applied to the human skin.  Method for alleviating the symptoms of hemorrhoids in humans. Compositions containing disaccharide polysulfate-aluminum compounds such as sucralfate, alone or in combination with antibiotics, antifungal agents, anti-acne agents, or local anesthetics as an active agent effective in promoting the healing of wounds which are not anorectal when topically applied to the surface of a wound.  Method for promoting healing at the surface of a wound in humans.
Patent CA-1299898-C (CA)
Title: Small engine provided with self starting motor
Inventor: YOKOYAMA YUKIO
IPC: F02N15/02
Filed: 1988-09-13
Granted: 1992-05-05
Abstract: ABSTRACT        A small engine provided with a self starter motor is suitable for use as a driving means for hand-held or back-carried machines such as cleavers.  As the engine is provided with a reduction drive gear loosely inserted over a cylindrical support concentrically provided with a crank-shaft, and is so constructed that the rotation of the self starter motor is transmitted to the crankshaft via the reduction drive gear and an engagement/disengagement means using centrifugal force, it is possible to improve the durability thereof and to simplify assembly operation.
Patent CA-1310136-C (CA)
Title: Microcomputer with internal ram security during external program mode
Inventor: EYER MARK K
IPC: G06F12/14
Filed: 1988-09-15
Granted: 1992-11-10
Abstract: ABSTRACT          The present invention provides a microcomputer which is operable in either an internal program mode, wherein the microcomputer functions in accordance with an internally stored program, or in an external program mode, wherein the microcomputer functions in accordance with a program stored in a memory external to the microcomputer, without compromising the security of data stored in a designated internal RAM.  The microcomputer of the present invention includes an internal program memory for internally storing programs; a bus for connection to an external memory for carrying programs from the external memory; a nonsecure RAM for storing nonsecure data; a secure RAM for storing secure data; a central processing unit for processing the stored data and/or externally provided data either in accordance with the internally stored programs or in accordance with programs stored in the external memory; and a controller for controlling inter-connections between the internal program memory, the bus, the RAMs and the central processing unit in accordance with the mode of operation of the microcomputer; wherein during the external program mode, the controller inhibits access to the secure RAM.          Code for accessing the secure data stored in the secure RAM is contained in a program stored in the internal program memory.
Patent CA-1320357-C (CA)
Title: Battery tachometer
Inventor: MARINO JOSEPH A
IPC: G01P3/481
Filed: 1988-11-02
Granted: 1993-07-20
Abstract: BATTERY TACHMOMETER               ABSTRACT OF THE DISCLOSURE A signal representing the RPM of an internal combustion  engine  (18)  is  produced  by  a  signal processor (10) connected to the battery (14) of the vehicle  (22).  The signal processor  (10) derives an electrical  signal   from the  battery   (14)   which contains signal components produced by operation of the  vehicle  ignition  system  (16),  as  well  as components  from a multitude  of  other  sources  (20) such as the voltage regulator, fans, air conditioning and other  electrical  systems  of  the  vehicle  (22). The   signal  processor   (10)   filters   and   signal processes the signal derived from the vehicle battery (14) to produce a signal having a frequency which is related to the RPM of the engine (18).
Patent CA-1303962-C (CA)
Inventor: SPANGENBERG ROBBERT E
IPC: E06B9/382
Filed: 1988-11-23
Granted: 1992-06-23
Abstract: A B S T R A C T         Venetian blind ladder means are provided in which first and second cross elements (4,5) of each cross connections of the ladder are located whereby the height of the projection of every pair of elements on a plane through the longitudinal side member axes ranges between zero and slightly larger than the depth of the blind slat material and the distance between the side members (3a,3b) of the ladder is only slightly greater than the slat width.  During assembly, the ladder means are guided so that, at the location of interlacing, each consecutive interlacing opening is angled to extend in a plane perpendicular to the plane of slat feed or at an angle so that the projection or the mutual spacing between elements (4,5)  in this perpendicular plane is sufficiently large to allow the advancing slat to be easily and rapidly fed therethrough.
Patent CA-1326705-C (CA)
Inventor: PARKER JEFFREY L
IPC: F24F13/04
Filed: 1989-01-03
Granted: 1994-02-01
Abstract: FAN-POWERED MIXING BOX ASSEMBLY             ABSTRACT OF THE DISCLOSURE        A fan-powered mixing box assembly through which conditioned air is supplied to a plurality of zones is controlled by a programmable fan-box monitor.  The as-sembly comprises a mixing box, a multi-speed fan and a heating element having several stages.  The monitor re-ceives data from and transmits data to a plurality of programmable zone thermostats each of which controls a zone via a duct damper through which air enters the zone.          The monitor receives data from duct temperature and duct air pressure sensors for use in controlling the fan and heating element.  Also, the monitor is responsive to signals representative of the real time for operating the assembly in setback modes when the various zones are not occupied.  The monitor modulates a master damper for control of supply air.
Patent CA-1325209-C (CA)
Title: Certain 2-substituted adenosine derivatives
Inventor: HUTCHISON ALAN J
IPC: A61K/
Filed: 1989-01-05
Granted: 1993-12-14
Abstract: Certain 2-Substituted Adenosine Derivatives Abstract of the Disclosure Disclosed are 2-substituted adenosine derivatives of the formula                        (I) wherein R represents a substituted amino grouping as defined in the specification, which are therapeutically effective adenosine-2 (A-2) agonists. They are prepared by methods known per se.
Patent CA-1283581-C (CA)
Inventor: RUMP MARTIN
IPC: B63H20/12
Filed: 1989-01-19
Granted: 1991-04-30
Abstract: A B S T R A C T Background of the Invention (1)  Field of the Invention:       The subject invention relates to a steering system to be attached to the tiller arm of a marine propulsion unit. (2)  Description of Prior Art:       Prior art steering assemblies were connected to a steering link extending to one side of the outboard motor. Examples of this  prior  art  systems  are:  U.S.  Patent  3,654,889  to Bergstedt  issued  April  11,  1972,  and  U.S  4,041,889  to Blanchard issued August 16, 1977. Both patents  disclose a hydraulic steering system which is not adaptable to most outboard propulsion units in production. An improvement was achieved  by  Canadian  Patent  1,180,606  to  Rump  issued January  8,  1985  similar  to  US  4,773,882  to  Rump  issued September 27, 1988 and US 4,373,920 to Hall issued February 151983. The steering mechanism described hereafter is believed to overcome various disadvantages of the prior systems. (3)  Summary of the Invention:       The invention provides a hydraulic steering assembly for a propulsion  unit,  where  the  axis  of  the  cylinder  travels absolute parallel to the axis of the tilt tube of the said propulsion  during the  pivotal  steering  movement  of  the tiller are of the said propulsion system avoiding a sliding motion between the said tiller are and the said hydraulic Assembly.
Patent CA-1335460-C (CA)
Inventor: POTEPAN AGNES K
IPC: C09K3/10
Filed: 1989-01-31
Granted: 1995-05-02
Abstract: A high temperature compressed non-asbestos sheet is provided which is effective for gasketing applications in temperatures up to at least 900°F. The sheet is formed from carbon fibers having a high percentage of carbonization and a low modulus of elasticity. The carbon content of the fibers is above 90% while the modulus of elasticity is less than 10,000,000 psi., and such fibers form at least 75% of the fiber content of the sheet. The carbon fibers may be blended with small portions of organic fibers to enhance the physical properties of the sheet.
Patent CA-1332983-C (CA)
Title: Method for improving tread noise by relative rotation of a rib, and simulating the effect thereof
Inventor: PARKER DAVID H
IPC: B60C11/00
Filed: 1989-02-02
Granted: 1994-11-08
Abstract: A method is disclosed for evaluating the level of objectionable noise associated with the operation of a tire by virtue of its tread contacting a road surface, which comprises digitizing the tread de-sign on a coordinate system so as to define load-supporting portions of the tread in contact with the pavement, and distinguish them in binary form from those portions of the tread which are not in con-tact, as multiple matrix elements; defining a generally arcuate pro-file of a leading or trailing edge of a footprint of the tread by fitting an equation to the edge; sequentially performing the time ensemble summation, of the noise produced by each matrix element, over ev-ery matrix element on the entire circumferential surface; converting the sequence of summation to a periodic analog signal; converting the analog signal to a sound; and, aurally evaluating the sound. In a simplified case 0's and 1's along at least one footprint edge are sequentially summed around the circumference of the tire. The system requires only a means for digitizing the tread pattern, a computer to perform the necessary manipulations of data, and a means to convert a digital signal to an analog signal. Having sub-jectively chosen a tread pattern deemed to have an acceptable noise level, ribs are then relatively rotated one with respect to another to obtain an improved level of tread noise.
Patent CA-1329499-C (CA)
Title: Welding robot
Inventor: SARTORIO FRANCO
IPC: B25J17/02
Filed: 1989-02-14
Granted: 1994-05-17
Abstract: ABSTRACT OF THE DISCLOSURE           A welding  robot  capable  of  freely welding workpieces of many different shapes, under a wide variety of  conditions  by  the  movement  within  a  specified operating area of a head on which a welding torch is mounted.
Patent CA-1324329-C (CA)
Inventor: FOLLAND RICKWORTH
IPC: B32B7/02
Filed: 1989-03-10
Granted: 1993-11-16
Abstract: A B S T R A C T     The present invention provides a wall for a package comprising:   (a)  an outer set of one or more layers (1-4) and (b)  an inner set of one or more layers (5-6) which layer or the outermost of which layers (5) comprises a composition comprising a polymer and having oxygen-scavenging properties,-wherein -(i)  the outer set of layers would have, if separate from the inner set and in the absence of any oxygen-scavenging properties in any of the layers or the layer constituting the set, a permeance, for oxygen, of not more than 1.5 cm3/(m2 atm day);     (ii) the inner set of layers would have, if separate from the outer set and in the absence of oxygen-scavenging properties in any of the layers or the layer constituting the set,  a permeance, for oxygen, of at least 2.0 cm3/(m2 atm day); and (iii) the inner set of layers would have, if separate from the outer set, a permeance, for oxygen, less than the permeance specified in (ii) by at least 1.0 cm3/(m2 atm day) by virtue of oxygen-scavenging in at least the layer specified in (b).     In a preferred combination one of the outer layers (3) is of metal and the composition in the outermost of the inner layers (5) scavenges oxygen through the metal-catalysed oxidation of an oxidisable organic component thereof.     The wall is suitable for packaging uses, with the inner set of layers disposed towards the product, where headspace scavenging is especially desired.
Patent CA-1318226-C (CA)
Title: Diamond crystal growth process
Inventor: GASWORTH STEVEN M
IPC: C30B25/00
Filed: 1989-06-08
Granted: 1993-05-25
Abstract: RD-17,340 IMPROVED DIAMOND CRYSTAL GROWTH PROCESS                   ABSTRACT OF THE DISCLOSURE     The steady state operating parameters of a low pressure chemical vapor deposition process for making diamond, i.e., nucleation-growth and graphite removal, are applied as controlled sequential steps to favor nucleation and growth.
Patent CA-1334310-C (CA)
Inventor: LOWERY MICHAEL K
IPC: C08G18/38
Filed: 1989-06-15
Granted: 1995-02-07
Abstract: Stable finely-divided dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material are made by reacting (i) an isocyanate with (ii) a compound selected from polyamines, hydrazines, hydrazides and mixtures thereof in the presence of (iii) a hydroxyl compound selected from polyethers, polyesters, polyester amides, poly-carbonates and mixtures thereof and (iv) a catalyst. The catalyst is a compound which catalyzes the reaction of isocyanate groups with hydroxyl groups.  The catalyst is used in a quantity of at least 50 parts per million parts of (i), (ii) and (iii).  These dispersions are particularly useful in the production of polyurethanes.