baber/WOPTO huggingface dataset:
Patent CA-1313294-C (CA)
Title: Method for in situ tailoring the metallic component of ceramic articles and articles made thereby
Inventor: NEWKIRK MARC S
IPC: C04B35/65
Filed: 1987-09-15
Granted: 1993-02-02
Abstract: ABSTRACT  There is disclosed a method for producing a self-supporting ceramic body by oxidation of a molten precursor metal with a vapor-phase oxidant to form an oxidation reaction product and inducing a molten flux comprising said molten precursor metal through said oxidation reaction product.  A second metal is incorporated into said molten flux during the oxidation reaction.  The resulting ceramic body includes sufficient second metal such that one or more properties of said ceramic body are at least partially affected by the presence and properties of said second metal.
Patent CA-1310833-C (CA)
Title: Castellated chemically coated seedling box
Inventor: KINGHORN JAMES
IPC: A01G9/10
Filed: 1987-09-25
Granted: 1992-12-01
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosed is a unique tree seedling container, constructed from expanded polystyrene, rectangular in shape and haing cavities moulded therein.  The cavities are tapered from top to bottom and are open ended.  The inner cavity walls are constructed in a castellated form having one or more raised portions extending vertically downwards the entire depth of the cavity.  Grooved portions intersperse the raised castellated portions.  Either one or the other of the grooved or raised portions is coated with a chemical, to prune the lateral roots of a tree seedling which come into contact therewith.
Patent CA-1310971-C (CA)
Title: Substituted 1,3,4-oxathiazol-2-one stabilizers
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C08L101/00
Filed: 1987-12-08
Granted: 1992-12-01
Abstract: SUBSTITUTED 1,3,4-OXATHIAZOL-2-ONE STABILIZERS               Abstract of the Disclosure Substituted 1,3,4-oxathiazol-2-one derivatives of the formula   and organic materials stabilized against oxidative, thermal and/or actinic degradation by the presence therein of said derivatives.
Patent CA-1310504-C (CA)
Title: Dielectric liquid level sensor and method
Inventor: ATHERTON KIM W
IPC: G01F23/26
Filed: 1987-12-08
Granted: 1992-11-24
Abstract: Abstract of the Disclosure Dielectric Liquid Level Sensor and Method A sensor for sensing the level of oil or transmission fluid under both normal and extreme temperature conditions.  The only active components of the sensor have input and leakage currents substantially lower than those of diodes and current sources under high temperature conditions.  The sensor has a probe, including a pair of electrodes forming a level detecting capacitor, adapted to extend in the vessel to detect the level of the liquid.  A reference capacitor is included which has a capacitance substantially the same as the capacitance of the level detecting capacitor when no dielectric liquid is present between the electrodes of the level detecting capacitor.  Circuitry is provided for measuring the capacitance of each capacitor and for deriving from the capacitance measurements a signal proportional to the level of the dielectric liquid at the sensor.          Circuitry is also provided for testing whether the reference capacitor is operating properly.  One of the electrodes of the level detecting capacitor is insulated to render the output of the sensor independent of high temperature conductivity effects.          Structure and a method are provided for compensating for varying dielectric constants of the oil or transmission fluid in which the sensor is immersed.
Patent CA-1294613-C (CA)
Inventor: LANG GUENTHER
IPC: C08L33/10
Filed: 1987-12-22
Granted: 1992-01-21
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a cosmetic compostion for the treatment of hair or skin, based on 0.05 to 10 wt.% of chitosan, including 0.05 to 20 wt.% of an ampholytic copolymer of the for-mula (I)   where m is from 0.1 to 0.9, and n is 0.5 to 0.9.  The composi-tions yield clear, smooth films which do not become sticky in a humid environment nor brittle in a dry one.  The invention also relates to a new chitosan/polyampholyte salts which can be obtained by reacting chitosan with an ampholytic copolymer of the formula (I).
Patent CA-1281146-C (CA)
Title: Photostructurable polyimide mixtures
Inventor: ROHDE OTTMAR
IPC: C08L79/08
Filed: 1987-12-23
Granted: 1991-03-05
Abstract: Photostructurable polyimide mixtures Abstract The present invention relates to compositions comprising a)     at least one polyimide having an inherent viscosity of at least 0.1 dl/g (measured at 25°C on a 0.5% by weight solution in N-methyl-pyrrolidone) and containing at least 50 mol % of structural units of the formula I                                                     (I), in which m and p independently of one another are integers from 0 to 4, n is an integer from 0 to 3, R1 and R2 independently of one another are C1-C6-alkyl or C1-C6-alkoxy and R3 is a divalent radical of an aromatic diamine which is substituted in at least one ortho-posi-tion relative to at least one N atom by alkyl, alkoxy, alkoxyalkyl, cycloalkyl or aralkyl or in which two adjacent C atoms of the aromatic radical are substituted by alkylene, and b)      at least one aromatic polyimide which is soluble in organic solvents and photocrosslinkable and which contains at least 50 mol %, relative to the total quantity of diamine units, of radicals R3 and at least 50 mol %, relative to the total quantity of aromatic tetracarboxylic acid units, of tetravalent aromatic tetracarboxylic acid radicals includ-ing at least one benzophenone unit.     The polyimide mixtures are distinguished by good adhesion to various substrates and have a high photosensitivity.  They can be used for the production of protective coatings and relief structures and are particularly suitable for the production of etch masks.
Patent CA-1324859-C (CA)
Inventor: JOSLIN SARA T
IPC: H01L21/52
Filed: 1988-03-03
Granted: 1993-11-30
Abstract: TITLE      DIE ATTACH ADHESIVE COMPOSITION          ABSTRACT OF THE INVENTION           A composition  for bonding integrated circuits to inorganic dielectric substrates comprising an admixture of finely divided particles of a thermally conductive metal or metal-containing compound, amorphous glass frit and fatty acid-based surfactant dispersed in a primary organic solvent selected from ethylene glycol monobutyl ether acetate, dimethyl adipate and mixtures thereof and optionally minor amounts of certain secondary solvents.
Patent CA-1333350-C (CA)
Inventor: PORCELLO SAM J
IPC: A21D13/14
Filed: 1988-03-25
Granted: 1994-12-06
Abstract: A sandwich cream filling composition of improved creami-ness comprising a fat matrix consisting essentially of a plastic fat of defined SFI profile and melt point and a high stability oil also of defined SFI profile and melt point, said composition being characterized as having good stand-up throughout a wide tempera-ture range from about 50°F to about 90°F and an imperceptible solids content at temperatures above about 98.5°F.
Patent CA-1313160-C (CA)
Title: Ni-p-mo catalyst containing silica-alumina
Inventor: WARD JOHN W
IPC: C10G45/08
Filed: 1988-04-18
Granted: 1993-01-26
Abstract: ABSTRACT OF THE DISCLOSURE           A catalyst contains nickel, molybdenum and phos-phorus components and a dispersion of silica-alumina in a matrix containing alumina.  The catalyst is employed to hydroprocess, and more particularly to mildly hydrocrack, a hydrocarbon oil.
Patent CA-1293298-C (CA)
Title: Optically powered sensor system
Inventor: PATRIQUIN DOUGLAS R
IPC: G01K1/20
Filed: 1988-05-04
Granted: 1991-12-17
Abstract: OPTICALLY POWERED SENOR SYSTEM                       Abstract of the Disclosure An optically powered senor system includes a plurality of senors connected to a system optical bus that communicates with a system controller.  Optical energy is transmitted along the bus for distribution to all sensors in the system with return pulses from the various sensors transmitted on the bus to the system controller.  Each sensor includes a photodiode array for converting optical energy transmitted system-wide by the controller into electrical energy for storage in a storage capacitor associated with each sensor.  A transducer, such as a thermistor, and a fixed-value reference, such as a resistor, are connected to a pulse encoder and, in response to power switched from the capacitor, the pulse encoder produces a series of short-duration pulses having a pulse spacing that is dependent upon the fixed value of the reference and the parameter-affected value of the transducer.  The pulses are used to drive an optical source for transmitting optical pulses from the sensor to the system controller.  The parameter value is determined by multiplying the known value of the reference resistor by a time factor ratio which is related by the reference pulse timing and the parameter-affected pulse timing.  An optical sensor system is provided in which the measurement of a parameter by each sensor is immune to variations in the, electrical components at each sensor.
Patent CA-1291547-C (CA)
Title: Computer controlled honing machine or the like
Inventor: DAVIS JAMES K
IPC: G05B19/4093
Filed: 1988-05-05
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE     A computer controlled machine tool such as a honing machine having a work engaging portion and apparatus to control the machine tool including to establish certain machine operating parameters based on the characteristics of the work to be done, including a computer device having an entry device for entering data as to the workpiece to be operated on, a computer storage device containing data pertaining to certain operating conditions and parameters, said computer device producing output data for establishing the operating parameters of the honing machine based on the entered data as to the workpiece, and the stored data, the computer device having outputs at which signals are produced for establishing the operating parameter for the machine tool.
Patent CA-1320506-C (CA)
Title: Lead-free glasses for glaze materials
Inventor: NELSON JOHN W
IPC: C03C8/02
Filed: 1988-09-26
Granted: 1993-07-20
Abstract: Abstract of the Disclosure This invention is directed to lead-free and, where desired,  cadmium-free  frits  for  glazes  and enamels, said frits consisting essentially,  in mole percent on the oxide basis, of SiO2      55-75          Na2O      3-9 B2O3       8-13          ZrO2      2-5 Al2O3    0.5-3           BaO     0.5-16 Various inert refractory materials may be included as fillers.
Patent CA-1294241-C (CA)
Title: Nail polish remover container
Inventor: WALKER ALVIN M
IPC: A45D29/00
Filed: 1988-09-27
Granted: 1992-01-14
Abstract: ABSTRACT A manicuring device adapted for removing fingernail polish  comprising  a  cylindrical  receptacle  defining  an interior annular channel and a bottom rib,  a brush member inserted into said receptacle and locked in place in said channel and against the rib.  The brush member comprising a hollow body with a plurality of flexible integral bristles extending inward and defining a plurality of slits allowing fluid to pass into the interior of the body.   The brush member  has  a  circular  flange  portion  on  one  end  and  a plurality of legs extending substantially perpendicular from the plane of the flange portion.
Patent CA-1309084-C (CA)
Title: Drive head apparatus for a rock boring machine
Inventor: ANDERSON LLEWELLAN
IPC: E21B3/02
Filed: 1988-11-25
Granted: 1992-10-20
Abstract: ABSTRACT      Drive head apparatus for driving the drill string of a rock boring machine, such apparatus comprising one or two drill string connectors (4)  (5) carried by respective recoiling and floating bearings (8)  (16), the connectors having resilient means such as a coil  spring acting therebetween.   Each bearing arrangement comprising respective cooperating spheroidal seating surfaces (9) (10) and (14)  (15) and is in the form of an insert replaceably securable to the associated connector body.  A splined at drive ring (17) rotatably drives the connector and is axially reversible to swap wear ends.
Patent CA-1287926-C (CA)
Title: Plot de report de connexion pour la fixation d'une broche a griffes sur la tranche d'un substrat de circuit hybride
Inventor: SEPTFONS RENE
IPC: H05K3/32
Filed: 1988-12-20
Granted: 1991-08-20
Abstract: : Plot de report de connexion pour la fixation d'une broche à griffes sur la tranche d'un substrat de circuit hybride. Ce plot de report de connexion de bord est destiné à la fixation d'une broche de connexion (30). Il présente deux plages étamables (17, 18) placées en vis à vis sur les côtés opposés d'un bord de substrat (10), aux endroits de préhension des griffes (33, 34, 35) de la broche (30) qui forment les mâchoires d'une pince élastique. Ces plages étamables (17, 18) sont entaillées de rainures (19, 20) aux emplacements des chemins de coulissement suivis par les griffes (33, 34, 35) lors de la mise emplace de la broche (30). Elles ont, dans le cas d'une broche (30) à trois griffes de même largeur totale qu'elles, l'une (17) la forme générale d'un U et l'autre (18) celle d'un T. Leur intérêt est de restreindre l'amplitude de l'ouverture de la pince de la broche et de lui assurer un centrage automatique sur le plot lorsque les plages (17, 18) sont déjà étamées. FIGURE A PUBLIER : Figure 1
Patent CA-1301408-C (CA)
Title: Cup shaped diaper with expandable forward panel
Inventor: COSENS CALVIN B
IPC: A61F13/62
Filed: 1989-01-05
Granted: 1992-05-26
Abstract: ABSTRACT          A baby diaper has a forward portion, a rearward portion and attachment tabs mounted on opposite sides of both the forward and rearward portions.  An expansion means in the form of elastic material is mounted on the forward portion between the oppositely located tabs on the forward portion and substantially centrally of the tabs to thereby allow for stomach movement of the infant and to create a connection between the tabs which has greater integrity. Additional elastic material is mounted in the central area between the forward and rearward portions which is pretensioned to allow for the diaper to assume a cup shape when it is unrestrained prior to positioning the diaper on an infant.
Patent CA-1309766-C (CA)
Title: Polarisation switching in active devices
Inventor: WHITE IAN H
IPC: G02F3/00
Filed: 1989-03-09
Granted: 1992-11-03
Abstract: ABSTRACT             POLARISATION SWITCHING IN ACTIVE DEVICES            The output polarisation of a twin guide semiconductor laser is switched either by controlling the operating current of both guides or by injecting an optical signal. Twin-stripe and twin-ridge lasers of InGaAsP are described.  True polarisation bistability is reported for a range of devices; the effect is temperature insensitive.
Patent CA-1329748-C (CA)
Title: Balloon catheter suitable for use in recanalising stenoses in body canals, more particularly coronary blood vessels and peripheral arterial vessels
Inventor: ZEIHER ANDREAS
IPC: A61M29/02
Filed: 1989-03-10
Granted: 1994-05-24
Abstract: A B S T R A C T      A balloon catheter suitable for use in the recanalisation of stenoses in bodily canals,  in particular coronary blood vessels and peripheral arterial vessels,  is provided with a microwave antenna (9) arranged on the inside of said balloon, said antenna being connected to a microwave generator by means of a coaxial cable (8).   The irradiation by microwaves of a microwave-absorbing dilation liquid and/or a metallic balloon skin coating causes said balloon catheter to be heated which in turn allows the vessel wall to be subjected to a thermal post-treatment required to prevent the reoccurrence of stenosis.
Patent CA-1302493-C (CA)
Title: Capacitive coupled power supplies
Inventor: MCCLANAHAN ROBERT F
IPC: H02M7/10
Filed: 1989-03-23
Granted: 1992-06-02
Abstract: CAPACITIVE COUPLED POWER SUPPLIES                  ABSTRACT OF THE DISCLOSURE    A high   frequency greater than one megahertz,  rectifying power supply having circuitry for providing AC power, a plurality of capacitors responsive to the AC power for providing DC isolation and for providing capacitively coupled AC power without inductors or reactors,  and a plurality of rectifying circuits responsive to the capacitively coupled AC power for providing respective DC outputs, which does not utilize a coupler and bulky transformer.  The outputs of the rectifying circuits are coupled in series or in parallel.   The  invention  is utilized  in applications wherein the required supply voltage is direct current.
Patent CA-1312490-C (CA)
Inventor: LEPPAENEN LASSE
IPC: D21F1/30
Filed: 1989-04-27
Granted: 1993-01-12
Abstract: Abstract The invention relates to a cloth for a paper machine, comprising a fabric formed of threads of a synthetic material. In the cloth, reinforcements extending sub-stantially longitudinally of the cloth are positioned at predetermined points. The reinforcements are formed by feeding molten plastic material in a narrow stripe on to the surface of the cloth. In order to improve the wear properties of the wire, the directions of the stripes forming the reinforcement are arranged to de-viate locally from the longitudinal direction of the cloth. (Figure 1)
Patent CA-1320019-C (CA)
Title: Toilet with device for removing unpleasant odors
Inventor: GANDINI LUIGI
IPC: E03D9/052
Filed: 1989-05-01
Granted: 1993-07-13
Abstract: Abstract A toilet with device for removing unpleasant odors comprises a bowl (2), a siphon (3) connected to a drain pipe (20), and a flange (6) for distribution of the flushing water, and provides a suction assembly (13) which at its intake end is connected to the bowl (2) in proximity to the said flange (6), while at the delivery end it opens into the drain pipe, with the interposition of valve means (18) capable of closing/opening simulataneously with starting/stopping of the suction assembly (13).
Patent CA-1300979-C (CA)
Title: Pump sealing apparatus
Inventor: WHITTIER JOHN D
IPC: F16J15/00
Filed: 1989-06-05
Granted: 1992-05-19
Abstract: Abstract of the Disclosure A centrifugal pump of the hydraulic sealing type has a novel and improved sealing apparatus for establishing a hydraulic seal and limiting the flow of liquid from a pump casing into a reservoir or seal housing at one end of the pump casing, and a valve assembly in the seal housing has a valve member normally urged into engagement   with the seal housing to isolate liquid in the seal housing from the casing when the pump is not in operation.  When the pump is activated and brought up to speed, centrifugal force-responsive pivot members are operative to move the valve member away   from sealed engagement with the seal housing to establish fluid communication between the seal housing and pump casing.  The force-responsive pivot mem-bers are fully enclosed so as to be completely isolated from the liquid in the seal   housing and yet be capable of operating directly in opposition to the resilient or spring-loaded valve to move the valve away from sealed engagement with the seal housing.  An expeller ring at one end of the seal housing limits liquid flow into the seal housing when the pump is stopped and removes any liquid in the reservoir into the pump casing when the pump is
Patent CA-1305242-C (CA)
Title: Multicolor liquid crystal display
Inventor: DEPP STEVEN W
IPC: G02F1/137
Filed: 1989-06-08
Granted: 1992-07-14
Abstract: ABSTRACT OF THE INVENTION            MULTICOLOR LIQUID CRYSTAL DISPLAY            A liquid crystal display device  is described which includes two transparent sheets separated by a given distance, with liquid crystal material being disposed therebetween.   Adjacent  one  transparent  sheet  is  a stack of at least three pleochroic polarizers which act to  separately  polarize  each  incoming  primary  color wavelength.   A  second  stack  of  at  least three pleochroic   polarizers   are   adjacent   the   second transparent sheet and  are  oriented  to  select  the primary color polarizations exiting  from the liquid crystal structure.
Patent CA-1330113-C (CA)
Title: Combine ground speed control system
Inventor: STRUBBE GILBERT J I
IPC: A01D41/127
Filed: 1989-06-19
Granted: 1994-06-07
Abstract: COMBINE GROUND SPEED CONTROL SYSTEM                  ABSTRACT OF THE DISCLOSURE         A combine harvester having an engine, a traction drive transmission, a header, a threshing and separating mechanism and a machine throughput control system is disclosed wherein a grain loss control loop is operable to produce a signal representative of grain loss and including a grain loss controller to which the grain loss signal and a reference grain loss signal are applied. A grain separation control loop is also provided to produce a signal representative of the grain separation in the machine. The grain loss controller is operable continuously to derive a reference grain separation signal from the grain separation signal, the grain loss signal and the reference grain loss signal. Means is also provided for algebraically summing the grain separation signal and the reference grain separation signal to produce a grain separation error signal which is used to control the machine throughput.
Patent CA-1309894-C (CA)
Title: Thermal printing system
Inventor: ISHIYAMA KIYOSHIGE
IPC: B41J13/02
Filed: 1989-06-20
Granted: 1992-11-10
Abstract: ABSTRACT OF THE DISCLOSURE      A thermal printing system of this type is able to obviate loosening of the paper sheet stock during its feeding step prior to printing,and thereby to prevent crumpling of the paper and information of misaligned print from occuring. A thermal printing system capable of performing aforesaid function can he achieved by mak-ing the printing system as such one comprising,a platen, a pair of pinch rollers one end of each of which is rotaably supported by each one of a pair of pinch roller levers and is resiliently biased by a pinch roller lever tensioning spring so that each pinch roller can be brou-ght into tight contact with aforesaid platen,and a paper stock holding casette case attached with a paper feed roller for feeding paper stock for printing,in which the peripheral speed of the platen is set higher than that of the paper feed roller of the paper holding cassette.          By virtue of this improved construction,the feed roller attached to the paper holding casette is utilized as a type of brake means for imparting back tension for the purpose of stretching the sheet of paper being fed.
Patent CA-1306968-C (CA)
Title: Method and apparatus for cell culture
Inventor: MITSUDA SHINJIRO
IPC: C12M3/02
Filed: 1989-06-23
Granted: 1992-09-01
Abstract: ABSTRACT OF DISCLOSURE     Adhesive  cells  proliferating in  a  preliminary culture  tank  of  a  small  size,  stripped  off  from immobilizing  carriers  and then mixed with a  part  of culture medium adjusted in an intermediate reservoir to obtain  a quantity of cell suspension,  collected  cell suspension   thus   obtained  into   the   intermediate reservoir  to be stored therein, transferred  the  cell suspension,  after  the cell distribution  therein  has been  uniformalized,  into a main culture  tank  filled with immobilizing carriers containing ceramic  material as  a main ingredient so that the cells adhere  to  the immobilizing  carriers and are further cultivated,  and finally producing physiologically active substance on a quantity of culture medium of this purpose.     A   cell  culuture  tank  comprises  an   inversed funnel-shaped  inlet  located  above  the  immobilizing carriers  filling  the  tank and having  a perforated bottom plate for uniform distribution of a quantity  of cell suspension supplied from above to the immobilizing carriers, a netty plate located under the  immobilizing carriers  to  support the  immobilizing  carriers,  and another perforated plate also located under the immobi-lizing  carriers  for uniform distribution  of another quantity of cell suspension supplied from bottom to the immobilizing carriers.