baber/WOPTO huggingface dataset:
Patent CA-2002858-C (CA)
Inventor: WEIR CHARLES R
IPC: B32B5/18
Filed: 1989-11-14
Granted: 1994-07-26
Abstract: Laminar insulating foam roofing material (eg. phenolic resin foam) having improved dimensional stability and which resists warpage when hot asphalt is applied to one surface thereof during installation,  is disclosed.   A flexible web material such as Kraft paper is bonded to opposing surfaces of the foam material by means of a uniform asphalt coating applied to one surface of the web material, the asphalt being a "sandwich" layer between the  insulating  foam  material  and  said  web  material.    This material is made by the steps of:   (a)   forwardly advancing the aforesaid laminar insulating  foam material between a pair of opposed rolls; and (b)   simultaneously applying a predetermined quantity of a heat absorbing and bonding material to surfaces of two flexible webs on opposing sides of said laminar foam material and bringing said two flexible webs each of which has a coating of said heat absorbing and bonding material applied to a surface thereof, into contact with said opposing surfaces of said laminar foam  material  at  said  opposed  rolls,  such  that  after  said bringing into contact of the insulating foam material and coated web material, said materials bond together to form said laminar material.
Patent CA-2008630-C (CA)
Title: Oil lubricant additive; process for preparing the same and lubricating compositions containing said additive
Inventor: GABILLET PHILIPPE
IPC: C10M133/12
Filed: 1990-01-26
Granted: 2001-01-09
Abstract: Viscosity additive containing:
 - 6 to 15 parts of a 60/40-54/46 ethylene/propylene copolymer of Mw 155,000 - 250,000 (OCP> - 2 to 8 parts of a poly(C1-C20 alkyl methacrylate) of Mw 30,000 - 150,000 (PMA) with a PMA/OCP ratio of 1/5 to 1/1
 - and the remainder to 100 parts of diluent oil. 
<??>Lubricating compositions containing 0.1 to 10% of the said additive.
Patent CA-2009804-C (CA)
Title: Wireless electrocardiographic and monitoring system and wireless electrode assemblies for same
Inventor: SEGALOWITZ JACOB M D
IPC: A61B5/308
Filed: 1990-02-12
Granted: 2001-11-20
Abstract: An electrocardiographic monitoring system in which the heart-signal sensing electrodes are each coupled to the heart-signal monitor/recorder by respective wireless transmitters and corresponding respective receiving wireless receivers in a base unit, each transmitter-receiver combination operating (in the absence of an encoding system) at a separate radio frequency, a zero or reference signal being developed at the base unit and being used to modulate a signal transmitter at the base unit, such modulated signal being received and demodulated by a receiver carried by a right-leg electrode carried by the right leg of the patient, this result being achieved by either ten-, nine-, five-, four- or three-wireless electrode assemblies to generate a standard complete twelve-lead electrocardiogram.
Patent CA-2015019-C (CA)
Title: Hot removal process for asbestos insulation
Inventor: HERWANDER DAVID R
IPC: B08B15/02
Filed: 1990-04-20
Granted: 1995-12-05
Abstract: A hoarding assembly having a non-combustible innermost portion is sealed against the cladding of a hot surface, such as that of a large boiler, to create an envelope.   Outside air may enter the otherwise airtight envelope through controlled inlets in the hoarding assembly.          The boiler is insulated with a layer of asbestos that is to be replaced.  A vertically extending first array of supply air inlets is provided in one end wall of the hoarding assembly and a vertically extending second array of suction outlets is provided in the other end wall.  A fan assembly injects cool air through the first array and a negative air machine assembly withdraws air through the second array.  The placement of the inlets and outlets results in a wall of air moving parallel to the boiler wall and having its centerline spaced from the cladding, typically about 1 to 3 feet from it.  With the foregoing operating, the sheet metal cladding is removed from the boiler.  A narrow vertical strip of the asbestos is then removed.   Insulation or a ceramic fiber curtain is temporarily placed over each exposed strip of boiler wall, to contain the heat radiation.  The asbestos is progressively removed in this fashion.   A sealant is then sprayed on the bared cleaned wall.  The system overcomes the problems inherent in removing asbestos from a potent source of radiant heat, without shutting the boiler down.
Patent CA-2017609-C (CA)
Title: Disposable diaper
Inventor: OHNISHI KAZUAKI
IPC: A61F13/15
Filed: 1990-05-28
Granted: 1998-02-17
Abstract: A disposable diaper includes a liquid-permeable top sheet, a liquid-barrier back sheet, and a liquid-absorptive core sandwiched between these two sheets.  Side flaps extend from the two side edges of the core, and have elastic parts which are longitudinally stretchable.  Side wings protrude from the two sides of the front and rear waist portions.  Each side wing comprises a composite of a sweat-absorptive, air-permeable layer, and a liquid-barrier, air-permeable layer.
Patent CA-2019301-C (CA)
Inventor: JOEL RADISSON
IPC: C07D495/04
Filed: 1990-06-19
Granted: 2000-09-05
Abstract: Compounds of formula   in which R1 and R2 are hydrogen or halogen, axe prepared by reacting an aldehyde of formula:    with CHHr3 and KOH in a mixture of an inert solvent and water. Further an ester of compound (I) wherein R1 is H and R2 is 2-Cl is reacted with 4,5,6,7-tetra-hydrothieno[3,2-c]pyridine to produce a compound of formula III :    which is useful as a medicament.
Patent CA-2023676-C (CA)
Title: Television system converter
Inventor: KATAGIRI TAKATO
IPC: H04N7/00
Filed: 1990-08-21
Granted: 1994-01-04
Abstract: (1) Abstract of the Disclosure A high-definition signal, which is band-compressed by an offset sub-sampling circulating in n=4 fields, is supplied to a simple MUSE processor from an input terminal.  The simple MUSE processor generates a simple high-definition television signal is generated by super-imposing fields which are fewer than n=4 fields.  A scanning line processor converts said simple high-definition television signal into an interlaced scanning signal with a number of scanning lines which are smaller than that of the television signal of the present sys-tem.  The television signal, which is output from the scanning line processor, is converted into an analog signal by a digital-analog converter.  Two color differ-ence signals, which are obtained by the digital-analog converter, are input to a quadrature modulator.  The sub-carrier used in the quadrature modulator is gener-ated as follows a clock, which is synchronized with the sampling pulse of the high-definition television signal, is obtained from a synch regenerator.  The clock, which is obtained from the synch regenerator, is input to a phase-locked loop circuit.  The phase synch loop circuit generates the color sub-carrier, which is phase-synchronized with the clock, and supplies the color subcarrier to the quadrature modulator.  Therefore, according to the above-mentioned system, the field fre-quency of the input television signal can be set to (2) invert every frame as the field frequency of the input television signal is maintained.  Also, the frequency of the color sub-carrier can be set to be in a frequency draw-in range of a color processor of NTSC system.
Patent CA-2026740-C (CA)
Title: Sensing previously-recorded information while recording or erasing a magnetooptic storage number
Inventor: TAYEFEH MOROVAT
IPC: G11B19/02
Filed: 1990-10-02
Granted: 1995-08-29
Abstract: A magnetooptic storage member is scanned by a single laser beam.  The beam intensity is sufficient to heat a localized area of the storage member to be above the Curie temperature for enabling reversing the remanent magnetization of the localized  area.   Such  localized  area  is  subjected  to  a magnetic bias  field for directing which of the  remanent directions  shall be  assumed in the  localized area.   The storage member and laser beam are relatively moved such that a front or leading portion of the localized area does not reach the Curie temperature.  The light reflected from this leading portion, which moves with the laser beam relative to the storage member, is detected for indicating the initial remanent state of the localized area before any changes are made by the combination of the bias field and the laser beam.
Patent CA-2027451-C (CA)
Inventor: SAKATA TAKASHI
IPC: G01N33/50
Filed: 1990-10-12
Granted: 2002-07-23
Abstract: A reagent, satisfying the undermentioned conditions, for counting the number of leukocytes and measuring the hemoglobin concentration in the blood, said reagent not containing cyanides and being able to maintain hemoglobin in a stable state for a prolonged time but contains at least one cationic surfactant selected from the group consisting of a quaternary ammonium salt of a concentration capable of hemolyzing erythrocytes in the blood; oxidizing hemoglobin and a composition of pyridinium salts; at least one selected from the group consisting of cationic, nonionic and ampho-teric surfactants; and at least one hemoglobin stabilizer is disclosed.
Patent CA-2028351-C (CA)
Inventor: WERSTLER JEROME
IPC: B23Q17/24
Filed: 1990-10-23
Granted: 1998-01-20
Abstract: On utilise pour retouche "in situ" d'un défaut localisé (6) sur une aube (3) d'un rotor (1) de turbomachine sans démontage un outillage (7) comportant un endoscope (8-8a et 10) et un corps (11) extérieur au carter (4) enveloppant le rotor. Le corps (11) porte une tige-support traversant un trou (5) du carter et une tige de manoeuvre reliée à un élément de rallonge repliable dont l'extrémité porte un outil diamanté. Un procédé d'utilisation est également décrit.
Patent CA-2028474-C (CA)
Title: Apparatus for counting and determining at least one leucocytic sub-population
Inventor: LEFEVRE DIDIER
IPC: G01N15/10
Filed: 1990-10-24
Granted: 2002-06-11
Abstract: An apparatus is disclosed for counting and determining at least one leucocytic sub-population, comprising a case (1) for injecting a flow of sample to be analyzed inside a measurement tank (5) through which a light beam (24) passes, comprising internal (16) and external (10) nozzles for sleeving the sample by means of a pressurized liquid. Electrodes for the resistivity measurements of the leucocytic sub-population are component elements (8, 16) of the injection case. Units for collecting and processing the signals delivered by the optical sensor and the electrodes are also provided.
Patent CA-2031362-C (CA)
Title: An improved method for producing coffee extracts
Inventor: COLTON RALPH L
IPC: C12S3/00
Filed: 1990-12-03
Granted: 2002-02-12
Abstract: A method for producing a coffee extract which comprises: (1) contacting an aqueous mixture of ground roast coffee with steam under pressure at elevated temperatures followed by rapid decompression to atmospheric levels; and (2) treatment of the resulting mixture with a hydrolytic enzyme or with a mixture of hydrolytic enzymes. The coffee extract thus obtained is a concentrated liquid which can be made into a beverage by the addition of water or it may be dried to a soluble solid and reconstituted with water to provide instant coffee.
Patent CA-2031880-C (CA)
Title: Combined anti-inflammatory agent
Inventor: IWAMITSU KENICHI
IPC: A61K31/715
Filed: 1990-12-10
Granted: 1999-09-21
Abstract: A pharmaceutical composition for treating inflammatory diseases, comprising (A) an effective amount of hyaluronic acid or its salt, and (B) an effective amount of an anti-inflammatory agent. The composition exhibits a synergistic therapeutic effect on inflammations and is useful for treating inflammatory diseases, particularly diseases of joint with inflammation.
Patent CA-2033181-C (CA)
Title: Two valve micropump with improved outlet
Inventor: VAN LINTEL HARALD T G
IPC: F04B53/10
Filed: 1990-06-12
Granted: 2000-10-24
Abstract: Pumping takes place within the micropump as a result of the deformation of a plate (12) using a piezoelectric pad (13). The deformation produces a variation in volume within a pumping chamber (15) defined inside a plate (11) which is made of a material which can be machined using photolithographic processes. The pump outlet (3) is blocked off, selectively, by a membraned check-valve (18) which is in direct communication with another check-valve (16) via the pumping chamber. The check-valve (16) selectively enables the pumping chamber to communicate with the pump inlet (2). The outlet valve membrane (18) has a layer of oxide (17) providing a pretension on closing. The check-valve thus has a regulatory effect on the pump operation, making the flow almost independent of the outlet (3) pressure.
Patent CA-2038708-C (CA)
Title: Removal of base metals and cyanide from gold-barren cip solutions
Inventor: LAKSHMANAN VAIKUNTAM IYER
IPC: C22B11/08
Filed: 1991-03-20
Granted: 1998-04-14
Abstract: Processes are provided for substantially removing base metals and/or cyanide from gold-barren solutions resulting from gold ore processing.
Patent CA-2042563-C (CA)
Title: Method and apparatus for transmitting a signal with an offset which follows a received signal
Inventor: SUZUKI MITSUHIRO
IPC: H04B7/26
Filed: 1991-05-14
Granted: 2002-07-23
Abstract: A transmitting and receiving apparatus suitable for use as a digital cellular type mobile station.      The reference reception carrier frequency and the reference transmission carrier frequency are different. Signals are transmitted and received such that an offset frequency of a received signal of an actual reception carrier frequency relative to the reference reception carrier frequency is detected and multiplied with a signal of the reference transmission carrier frequency, and the multiplied output used as the transmitted signal of an actual transmission carrier frequency which follows the actual reception carrier frequency.
Patent CA-2045702-C (CA)
Title: Production of paper and paperboard
Inventor: DERRICK ARTHUR PERCY
IPC: D21H21/10
Filed: 1991-06-26
Granted: 1996-06-04
Abstract: The fines retention or drainage properties of mechanical pulps in the paper making process are improved by including in the thin stock, not after the last point of high shear, particles of a water-dispersible colloid siliceous material such as a bentonite clay in intimate association with a low molecular weight water soluble high anionic charge density polymer, such as polyacrylic acid having a molecular weight below 50,000 and a charge density of at least 4 m eq/g and further including in the thin stock, after the last point of high shear, a non-ionic high molecular weight polyelectrolyte such as polyacrylamide having a molecular weight of at least 100,000.
Patent CA-2052462-C (CA)
Title: Measurement system
Inventor: GILL MICHAEL JOHN
IPC: G01F15/00
Filed: 1991-09-30
Granted: 1996-07-09
Abstract: A measurement system includes a housing 10 with a duct 11 having an inlet 13 and outlet 14. Fluid passes though a number of apertures 47 in a chamber 21 and then through a measuring tube 40 which incorporates extensions 41. Fluid exits via chamber 22 and its apertures 47 to outlet 14.  Transducers 36,37 are provided in chambers 53,50 and have an acoustic path through the measuring tube. Control electronics cause the transducers to send a burst of signals in alternate directions through the tube to determine fluid speed.
Patent CA-2059417-C (CA)
Title: Localized heating elements for use with desks
Inventor: NELSON THOMAS MORGAN
IPC: F24C7/06
Filed: 1992-01-15
Granted: 1996-03-19
Abstract: A heating unit includes a frame and a substantially flat radiant heating surface supported by the frame.  A generally parabolic trough with a reflective inner surface is mounted along one edge of the periphery of the heating surface, and contains an elongate heating element.  Further, a reflective flap is hingedly mounted adjacent the trough but remote from the heating surface, disposed so that at least a portion of the radiant energy reflected out of the trough by the reflective inner surface is re-reflected by the flap, depending upon its angulation with respect to the heating surface.
Patent CA-2059885-C (CA)
Title: Paging system and its operating method
Inventor: ICHIKAWA YOSHIO
IPC: G08B3/10
Filed: 1992-01-23
Granted: 1996-03-05
Abstract: This improved paging system not only detects an omission of a message reception, but also acquires an unreceived message.          When a normal paging request call is made from a public telephone network, the paging control unit adds to the received request a message counter including the called subscribers' number and then transmits an encoded paging signal which includes the received request.  Further, control unit stores the message data in a storage unit corresponding to a value of the counter of the called subscriber's number.  The called pager detects an omission of a message reception through the received message counter value by comparing it with the message counter value of the last received message signal.  A displayed message indicates an omission as well as the value of the omitted message.  Thus, a call can be made through a public telephone network to request a repeated transmission.  When the message counter value is specified, the paging control unit retrieves the message data stored in the message data storage unit corresponding to the specified value and transmits the data from the transmitter.
Patent CA-2063524-C (CA)
Title: Optical sensor and method for producing the same
Inventor: ASAI YUJI
IPC: G01R1/07
Filed: 1992-03-19
Granted: 1997-08-26
Abstract: An optical sensor including a plurality of optical elements such as lenses, a polarizer, an analyzer, optical fibers, and a Pockels element or Faraday element.  Light beams from a light source are transmitted through the optical elements of the optical sensor to optically measure quantitative values acting upon the optical elements on the basis modulation of the light beams received in a light receiver.  The optical sensor includes a first synthetic resin interposed between the optical elements to be in close contact with the optical elements without any clearance, and a second synthetic resin of the same material as the first synthetic resin filled around the optical elements. The optical elements may be bonded to a base plate for adjusting optical axes of the optical elements, and the second synthetic resin may be filled around the optical elements and the base plate.
Patent CA-2077545-C (CA)
Title: Mixtures of hals compounds
Inventor: BECHTOLD KARL
IPC: C09D7/12
Filed: 1992-01-07
Granted: 2003-12-09
Abstract: A composition, suitable for stabilising a polymeric composition against the effects of light, comprising: a) an N-acylated 2,2,6,6-tetraalkylpiperidinyl group (hereinafter N-acylated HALS) containing compound; and b) an N-oxy-subst. 2,2,6,6-tetraal-kylpiperidinyl group (hereinafter N-oxy-subst. HALS) containing compound. A  further aspect of the invention relates to a com-position, suitable for stabilising a polymeric composition against the effects of light comprising: a) an N-acylated 2,2,6,6-tetraal-kylpiperidinyl-group-containing compound in which a spiro group is attached in the 4-position (hereinafter defined as compo-nent i); and b) an N-acylated 2,2,6,6-tetraalkylpiperidinyl-group-containing compound in which in the 4-position no spiro group is present (hereinafter defined as component ii). The compounds are suitable as light stabilizers in acid catalyzed lacquer system.
Patent CA-2084037-C (CA)
Title: Apparatus for concealing error of moving pictures transform coding
Inventor: HYODO MASAAKI
IPC: H04N19/139
Filed: 1992-11-27
Granted: 1997-04-15
Abstract: An apparatus for concealing an error of a moving pictures transform coding includes the first concealment circuit (19) for analyzing data according to a type of the data, the data being error-detected but not corrected by an error correction decoding by the decoder (12), for replacing the data with a specific data according to the analyzed result by using a predetermined method, and for outputting a specific signal therefrom, and the second concealment circuit (22) connected to the first concealment circuit (19) for replacing reproduced pixel values of an error-occurred block with reproduced pixel values of a previous frame according to the signal output from the first concealment circuit (19) in case that the data being error-detected but not corrected is data of a predetermined frequency component or data of an additional information.
Patent CA-2089993-C (CA)
Title: Data acquisition system having selective communication capability
Inventor: MERKLE SCOTT A
IPC: G06F17/40
Filed: 1993-02-19
Granted: 1999-06-15
Abstract: A data acquisition system having selective communication capability to enable the data acquisition system to communicate with other data acquisition systems.  The probe of the present invention initiates communication with a data acquisition unit located in an appliance.  The data acquisition unit maintains a collection record which indicates the current setup and counts of the appliance.  When the probe communicates with the data unit, it identifies itself and based upon this identification, the data unit responds with a particular collection record which is compatible with the probe communicating with the data unit.  In addition, if the probe is used to setup a data unit, the probe decides what type of setup record to send based upon the collection record received from the data unit.
Patent CA-2091525-C (CA)
Inventor: KASAHARA KENICHI
IPC: H04B10/27
Filed: 1993-03-11
Granted: 1998-08-11
Abstract: A  semiconductor  optical  device  including  multilayer semiconductor  device  regions  formed  on  a  surface  of  a semiconductor  substrate  and  act  as  an  optical  device respectively, and diffraction gratings formed on a back of the substrate optically coupled with at least one of said regions through the substrate.  The region has a function such as light emitting,  light  receiving,  light  amplification  or  light switching.  The regions and gratings can be respectively formed on the surface and the back, monolithicly, and polishing of the substrate provides a suitable thickness so that the regions and the gratings may be optically coupled with each other.   The regions and gratings may be arranged at the optimum positions in the direction parallel to the substrate.  Extremely precise alignment of its components and many channels can be obtained with compact size easily.
Patent CA-2097813-C (CA)
Inventor: COUTURE LEONARD
IPC: A47J36/26
Filed: 1991-12-04
Granted: 1996-09-10
Abstract: A combined unit for cooking, heating and/or gratinating food comprises a support member (12) on which rests a pair of vertically spaced plates (20, 26). The lower plate (20) is adapted to receive food to be gratinated while the upper plate (26) is adapted to receive food to be cooked and/or heated. The unit comprises means (36) for deflecting heat over the food on the lower plate and under the upper plate to cook and/or heat thereon.
Patent CA-2105206-C (CA)
Inventor: RUDERER CLIFFORD G
IPC: C03C8/04
Filed: 1993-08-31
Granted: 2004-06-22
Abstract: This invention relates to a lead-free glass coating made by firing a lead-free glass enamel composition comprising a glass frit having by weight from about 20% to about 40% zinc oxide, from about 20% to about 32% boron oxide, and from about 10% to about 30% silicon dioxide, from about 0% to about 12% titanium dioxide, from ablaut 4% to about 12% sodium oxide, from about 0% to about 10% potassium oxide, from about 0% to about 12% zirconia, up to about 4% alumina, up to about 5% lithium and up to about 5% fluorine.      The lead-free glass coating exhibits excellent adhesion and improved acid resistance.
Patent CA-2106733-C (CA)
Title: Copolymers of ethylene with olefinic monomers, process for the preparation thereof and catalyst
Inventor: RESCONI LUIGI
IPC: C08F4/6592
Filed: 1993-09-22
Granted: 2009-05-12
Abstract: Copolymers of ethylene with comonomers selected from (a) alpha-olefins, (b) cycloolefins and/or (c) dienes, characterized by the fact that:   the molar percentage of the comonomer (% .alpha.) and the density of the copolymer (D) satisfy the relation % .alpha. + 150D <= 141.