baber/WOPTO huggingface dataset:
Patent CA-1297218-C (CA)
Title: Thermally stable diphosphonate-type flame retardant additive for plastics
Inventor: WEIL EDWARD D
IPC: C08L101/00
Filed: 1987-02-16
Granted: 1992-03-10
Abstract: ABSTRACT OF THE DISCLOSURE      Flame retardant plastic compositions are prepared by incorporating into a polymer from 1-30% by weight of a flame retardant having the structural formula:                           This class of flame retardant shows exceptional high temperature stability and permits incorporation of the flame retardant into the polymer by hot milling at temperatures up to about 350°C.
Patent CA-1325534-C (CA)
Inventor: LEEMANS JOHAN S
IPC: F42B8/14
Filed: 1987-06-02
Granted: 1993-12-28
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention relates to a filler for disinte-grating projectiles used as training ammunition and a process for the production of same.  Disintegrating projectiles of this kind have to fulfill the various safety conditions in a reliable manner.  Using the filler according to the present invention, and/ or compacts produced from these, the danger area in front of the muzzle has been reduced considerably. Steel powder that is sieved off after a hammering and tumbling treatment lasting for longer than 60 minutes has a dust-free grain fraction of under 0.315 mm and a filling density between approximately 3.9 and 4.6 g.cm-3 and can be compacted  such that the resulting density of a compact to be incorporated in a disintegrating projectile lies between approximately 6.5 and 7.15 g.cm-3, depending on the height and the shape of the compact.
Patent CA-1324754-C (CA)
Title: Methode de production assistee d'un effluent visqueux  contenu dans une formation geologique
Inventor: RENARD GERARD
IPC: E21B43/30
Filed: 1987-06-26
Granted: 1993-11-30
Abstract: La présente invention concerne une méthode et un dispositif de production d'un effluent pétrolier visqueux contenu dans une formation productrice, cette formation productrice étant située au-dessus d'une formation ne contenant pas ledit effluent visqueux et étant imperméable audit effluent visqueux. La méthode selon l'invention, qui utilise un puits de production et au moins un puits de stimulation de la production est caractérisée en ce que ledit puits de stimulation est fore depuis la surface et en ce qu'il traverse ladite formation productrice pour passer dans ladite formation imperméable et rejoindre ledit puits de production.
Patent CA-1303157-C (CA)
Title: Signal cable assembly with fibrous insulation and an internal dielectriccore
Inventor: LEE NOEL
IPC: H01B7/00
Filed: 1987-10-23
Granted: 1992-06-09
Abstract: SIGNAL CABLE ASSEMBLY WITH FIBROUS INSULATION AND  AN INTERNAL CORE                   Abstract of the Disclosure A cable in which a core is surrounded by a plurality of bundles of wire conductors.  Each bundle is formed by a plurality of wire strands twisted around a central conductor which is wrapped by a strand of dielectric material.
Patent CA-1278678-C (CA)
Title: Taper-measuring device and method
Inventor: FAVVAS DIMITRIOS
IPC: G01B5/20
Filed: 1987-12-01
Granted: 1991-01-08
Abstract: ABSTRACT OF THE DISCLOSURE         The  measuring  bar  consists  of  an  elongated  rigid sectional shaft to the  ends of  which are  secured two identical diametrally larger  spherical bodies.   Adjacent  and inwardly of each  body,  there  is  provided  a  pair  of   stabilizer  discs eccentrically  connected  to  the  shaft about a transverse axis.          These stabilizer discs impart lateral stability  to the measuring bar when  both spherical bodies rest on a curved or flat surface.          The spherical bodies are  of precisely-known  diameter d  and the distance La  between their  centers is also precisely known.  The method of measuring, for instance, the  taper of  a conical shaft includes the  following steps:   a) positioning the measuring bar on the shaft with its longitudinal axis co-planar  with the shaft axis;      b)  measuring  at  a first spherical body the shortest distance Sa between a point of  the shaft  opposite the  body and co-planar with the axes of the measuring bar and of the shaft and a tangent of  the  first  body  whereby  the  latter  distance is measured  along  a  line  which  is normal to the cone generatrix containing this point;   c)  repeating the  measuring step  b) at the second  body to  obtain the  distance Sb; and   d)  computing the tapering  angle  .theta.  from  La, Sa  and  Sb  by  resolving the following equation:          .theta.  =  sine -1       .
Patent CA-1283827-C (CA)
Title: Appliance for injection of liquid formulations
Inventor: CIRELLI GIORGIO
IPC: A61M5/20
Filed: 1987-12-04
Granted: 1991-05-07
Abstract: A B S T R A C T   The portable appliance is of use for the subcutaneous or intradermal injection of a liquid formulation of an active principle and it comprises in combination: a supply vessel (3) for the formulation; an injection needle (7) adapted to communicate with the vessel (3): pump means (4, 32, 34, 50) for emptying the vessel (3) through the injection needle (7): securing means (16, 17) for securing the appliance to an appropriate part of the patient's body: and needle-driving means (12, 13) for shooting the injection needle (7) into the patient's skin.            Fig. 1
Patent CA-1284778-C (CA)
Title: Apparatus for lifting an elongate member
Inventor: FETERL LEON G
IPC: B66F19/00
Filed: 1987-12-24
Granted: 1991-06-11
Abstract: ABSTRACT     APPARATUS FOR LIFTING AN ELONGATE MEMBER     An  apparatus  for  supportably  elevating  and lowering  material  handling  apparatus  having  an elongate member includes two arms radiating upwardly from a base.  A lower undercarriage arm is pivotably attached to the elongate member, and the lift arm is attached to a roller support which moves along a rail on  the  elongate  member.    The  roller  support  and attached lift arm are moved by a winch-drawn cable.          At least one pair of spaced support sheaves is mounted on the elongate member, and the cable passes under the sheaves.   At least one riser post extends upwardly from  the  base  and  is  attached  to  the  lower undercarriage  arm  so that  it  intersects the cable between the spaced support sheaves.  A sheave mounted on the riser arm intersects and supports the cable when the elongate member is lowered.  As the elongate member  is  lowered,  the  riser  post  supports  an increasing portion of the downward load.  The net load on the cable is reduced and the elongate member can be elevated from a horizontal or near horizontal position with much less force.
Patent CA-1282312-C (CA)
Title: Rocking furniture with removably secured and adjustable cushions
Inventor: LAIRD WILLIAM B
IPC: A47C3/025
Filed: 1988-02-10
Granted: 1991-04-02
Abstract: ABSTRACT      The invention pertains to furniture of the chair, loveseat and couch type which includes a frame, first and second members linked with one another and generally parallel to one another, one or more spring members coupling the first and second members with the frame and permitting partial rotation of the first and second members about an axis perpendicular to the first and second members and biasing the members back to an initial orientation when rotated, a cushion received by and supported by the first pair of members, a latch mechanism within the cushion for latching the cushion to at least one of the first and second members receiving the cushion, a mating element on at least one of the members for engaging with the latch and an actuator within the cushion coupled with the latch for disengaging the latch mechanism from the mating element of the members.
Patent CA-1305600-C (CA)
Title: Manufacture of high purity low arsenic anhydrous hydrogen fluoride
Inventor: STURTEVANT ROBERT LANCE
IPC: C01B7/19
Filed: 1988-02-11
Granted: 1992-07-28
Abstract: MANUFACTURE OF HIGH PURITY LOW ARSENIC ANHYDROUS HYDROGEN FLUORIDE                ABSTRACT OF THE INVENTION    A process for manufacturing high purity anhydrous hydrogen fluoride (RF) having low levels of arsenic impurity by contacting anhydrous hydrogen fluoride product, or an intermediate product obtained during the manufacture of HF, with hydrogen peroxide in the presence of a catalyst which comprises effective amounts of molybdenum or an inorganic molybdenum compound and a phosphate compound.  The volatile trivalent arsenic impurity in the anhydrous hydrogen fluoride is oxidized to a non-volatile pentavalent arsenic compound and the resultant mixture is distilled to recover high purity anhydrous hydrogen fluoride with reduced levels of arsenic impurity.  In one emodiment, an oxidizing agent such as nitric acid or a nitrate salt is added to the reaction mixture to oxidize organic contaminants.
Patent CA-1314287-C (CA)
Title: Nitrogen-containing cycloalphatic compounds having an amino acid radical and a pyridine radical
Inventor: ENGEL JUERGEN
IPC: C07D401/12
Filed: 1988-04-15
Granted: 1993-03-09
Abstract: ABSTRACT     Compounds of formula   I     wherein the radicals R1 and R2 are the same or different and represent hydrogen, halogen atoms, a trifluoromethyl group, a cyano group, a nitro group, an amino group, a mono-C1-C6-alkylamino group, a di-C1-C6-alkylamino group, an amino group that is substituted by a phenyl C1-C4-alkyl radical or a halogenphenyl-C1-C4-alkyl radical, a C2-C6-alkanoyl-amino group, a C1-C6-alkoxycarbonyl amino group, a C1-C6-alkyl group optionally substituted by a phenyl radical, a hydroxy group, a C1-C6-alkoxy group, a C2-C6-alkanoyloxy group, a phenoxy group or represent a carbamoyl group optionally substituted by one or two C1-C6-alkyl groups and the radical A is an acyl group which is derived from an amino acid as well  as processes for their preparation.
Patent CA-1311314-C (CA)
Title: Apparatus for separating semiconductor chips
Inventor: NISHIGUCHI MASANORI
IPC: B28D5/00
Filed: 1988-04-29
Granted: 1992-12-08
Abstract: Abstract:    An apparatus for making a semiconductor device by individually separating semiconductor chips formed on a wafer, comprises a flexible mat, support shafts for supporting the mat in a substantially horizontal position, and a pressing plate having a generally convex body and being supported for movement up and down.  A drive mechanism vertically moves the pressing plate and the wafer relative to one another.  The wafer has first and second surfaces opposite each other, with the chips formed on the first surface.  The wafer is placed on the mat with the chips confronting the mat.  The convex body of the pressing plate is pressed against the second surface of the wafer to separate the chips on the wafer.  The apparatus simplifies the process and avoids damaging the chips.
Patent CA-1302188-C (CA)
Inventor: ASAI KOETSU
IPC: F02M21/00
Filed: 1988-06-02
Granted: 1992-06-02
Abstract: Abstract of the Disclosure An improved gas feed system for a gas fired diesel engine is disclosed, in which a boil-off gas evaporated from a liquefied gas is fed to the diesel engine.          The improvements reside in that between the diesel engine and a liquefied gas tank for storing a gaseous fuel is provided a liquefied gas adding apparatus for adding the liquefied gas into the boil-off gas, and that a passageway of a high-pressure gas pressurized by a high-pressure compressing apparatus which compresses the boil-off gas or a mixture of the boil-off gas and the liquefied gas and a passageway of a low-pressure gas pressurized by a low-pressure compressing apparatus are respectively provided in the gas feed system.
Patent CA-1329147-C (CA)
Inventor: NILSSON BJARNE
IPC: B01D33/21
Filed: 1988-06-23
Granted: 1994-05-03
Abstract: ABSTRACT   A disk filter, including a plurality of rotatable, axially spaced annular filter disks adapted to be partially immersed in a liquid or a suspension which is to be filtered. Each filter disk comprises a plurality of filter elements which are in communication with axial filtrate conduits arranged at the outer peripheries of the annular disks for discharge of filtrate. For increasing the flow speed of the filtrate in the axial filtrate conduits these slope downwards in the flow direction. This has been achieved in that a filter element of a filter disk is displaced relative to the filter element of the filter disk connected to the same filtrate conduit and being the following filter disk, counted in the flow direction in the axial filtrate conduit, so that the first mentioned filter element is in advance of the later mentioned filter element, as counted in the direction of rotation.
Patent CA-1327236-C (CA)
Title: Tractor-trailer brake control system
Inventor: GEE THOMAS A
IPC: B60T8/17
Filed: 1988-07-06
Granted: 1994-02-22
Abstract: ABSTRACT OF THE DISCLOSURE          A tractor (28)-semi-trailer (30) brake system control for distributing brake effort to obtain inter-tractor-trailer balanced and proportional braking, depending upon the magnitude of operator demand for braking effort, is provided.  The control utilizes sensors (800 170, 172) provided solely on the tractor.
Patent CA-1339721-C (CA)
Title: Immunological detection process for herbicides
Inventor: PFEIFFER WOLFGANG
IPC: G01N33/53
Filed: 1988-07-18
Granted: 1998-03-17
Abstract: The invention concerns an immunological detection process, with which triazines und structurally similar compounds and/or biologically equivalent compounds with similar bonding behaviour are detected as belonging to one activity class, but with which on the other hand it is possible to identify the individual substances even in complicated mixtures.
Patent CA-1320790-C (CA)
Title: In-mold coating powders with two initiators or 1,1- di(t-butylperoxy)-3,3,5-trimethylcyclohexane as a single initiator
Inventor: CUMMINGS FREDERICK L
IPC: C08F299/04
Filed: 1988-07-20
Granted: 1993-07-27
Abstract: ABSTRACT OF THE DISCLOSURE      Unsaturated polyester resin coating powder composition consisting essentially of at least one unsaturated polyester resin; at least one copolymerizable second resin; and an initiator which comprises 1,1'-di(t-butylperoxy)-3,3,5-trimethylcyclo-hexane (AE), or which contains a small proportion of a fast initiator and a relatively large proportion of a slow initiator as defined herein.  Initiator AE has been found to work better as a single initiator than other initiators previously employed in in-mold powder coating formulations.  The combination of initiators works better than either one alone, and better than any of the few moderate rate initiators available. A method is also disclosed for forming a cured unsaturated polyester surface coating on a cured unsaturated polyester substrate by coating one of the previously stated powder compositions on a heated mold surface so the coating flows and coalesces to form a partially crosslinked coating, then putting a charge of reinforced polyester resin in the mold and closing the mold, maintaining a suitable pressure and temperature for a time sufficient to cure the fill resin and the coating.  The coating and substrate are crosslinked across the interface between them when the part is cured.  Use of the present compositions in such a process has been found to provide improved surface characteristics of the coating.
Patent CA-1312083-C (CA)
Title: Hydantoin derivatives
Inventor: MOCHIDA EI
IPC: C07D405/12
Filed: 1988-08-26
Granted: 1992-12-29
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention relates to novel hydantoin derivatives,  processes  for producing said hydantoin derivatives, pharmaceutical compositions containing at least  one  of  said  hydantoin  derivatives  as  aldose reductase inhibitors and novel intermediate compounds in the synthesis of said hydantoin derivatives.    The present invention is based on the selection of a hydantoin which is bonded by a sulfonyl group to various substituents at the 1-position of the hydan-toin skeleton.    The  compounds  of the present  invention have  a strong inhibitory activity against aldose reductase. These compounds are extremely useful for the treatment and/or prevention of various forms of diabetic compli-cations based on the accumulation of polyol metaboli-tes.
Patent CA-1335923-C (CA)
Title: Alkyl phenol-sulfur condensates as fuel and lubricating oil additives
Inventor: MARTELLA DAVID J
IPC: B01J29/06
Filed: 1988-09-13
Granted: 1995-06-13
Abstract: Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and sulfurizing agent, wherein:         (a)  the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;         (b)  in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and (c)  not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be produced in a branched backbone form in which monomer reactants are copolymerized with certain tri-or tetrafunctional comonomers.  Blends of these additives with various hydrocarbon oils, and particularly various middle distillates and lubricating oil compositions, whose low temperature flow properties and oxidative stability are significantly improved thereby, are also disclosed.
Patent CA-1303934-C (CA)
Inventor: GREEN DAVID T
IPC: A61B17/08
Filed: 1988-09-20
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE The fascia clip is of two-piece construction having an elongated base and a flexible strap.  The base is sized to bridge over an incision in fascia tissue and has openings at opposite ends.  The strap has a pointed distal end for passage through the opening at the proximal end of the base so as to pierce through the fascia tissue.  After being directed under the incision, the strap can again pierce the tissue to pass through the opening at the distal end of the base in order to be gripped therein.  The strap has an enlarged head at the proximal end to prevent complete passage through the opening at the proximal end of the base.  Resilient teeth are used at the distal end of the strap to engage with a web about the opening at the distal end of the base.
Patent CA-1328171-C (CA)
Inventor: KANEKO TOSHIO
IPC: B41M5/30
Filed: 1989-01-16
Granted: 1994-04-05
Abstract: ABSTRACT OF THE DISCLOSURE         A heat-sensitive recording material has a support and a color-developing layer which contains a colorless basic chromogenic dye comprising at least one particular fluorane-type leuco dye and a particular divinyl compound.  This heat-sensitive recording material is superior in thermal response, light resistance, weather resistance, oil resistance and optical readability in the near infrared region.  The flourane-type leuco dye has the formula:                                                   (I) [wherein at least one of R1 - R9 is a group of the formula:                              , and the remainders of R1 - R9 are hydrogen, alkyl, alkoxy, cycloalkyl, halogen, nitro, hydroxy, amino, aralkyl or aryl, T1 - T3 are hydrogen, alkyl, alkenyl or alkynyl T4 is hydrogen, alkyl, alkenyl, alkynyl or phenyl, or T3 and T4 together with the adjacent nitrogen atom form a cyclic amino, and 1 is 0 to 4].  The divinyl compound has the formula:                             (II) R10 is alkyl, R11 is alkyl, cycloalkyl  optionally substituted benzyl, or optionally substituted phenyl, X1 and X2 are alkyl, alkoxy, F,  Cl, or Br, m and n are 0 to 3, X  is Cl or Br, provided that at least one of X3 in (X3)4 is Br].  The chromogenic dye may also comprise a fluorene-type leuco dye.
Patent CA-1316335-C (CA)
Title: Methods of and apparatus for reconfiguring optical fiber connector components and products produced thereby
Inventor: PALMQUIST JOHN M
IPC: G02B6/36
Filed: 1989-01-30
Granted: 1993-04-20
Abstract: Abstract A biconic connector includes two plugs(44-44) each of which terminates a single fiber optical cable (55) and each of which includes a conically shaped end portion (50). The connector also includes an alignment sleeve (86) having back-to-back conically shaped cavities each of which is adapted to receive and end portion Or a plug. In order to minimize loss through a connection, it becomes important for the axis of an end portion of the optical fiber in the conically shaped end portion of the plug to be substantially coincident with the axis of revolution of the conically shaped end portion. This is accomplished by holding the plug in a fixture such that its conically shaped end portion is exposed and the fixture adapted to be turned about an axis of rotation (105). Scattered light from a laser (166) directed toward a gauging length (100) of optical fiber in a passageway of the plug and extending beyond an end face thereof as the plug is turned rotatably is received on a target area. The fixture which holds the plug is turned pivotally to cause the axis of the gauging length of optical fiber to parallel the axis of rotation. Images of light are launched toward the optical fiber transversely of the longitudinal axis of the optical fiber at a plurality of positions spaced apart circumferentially through a known angle. The axis of rotation and the eccentricity of a centroid of the gauging length of optical fiber are determined from these images. Adjustments are then made to cause the centroid of the fiber to be coincident with the axis of rotation. Subsequently, the end portion of the plug is reconfigured to cause the axis of revolution of the reconfigured end portion and a portion of the axis of the gauging length of optical fiber to be substantially coincident.
Patent CA-1340286-C (CA)
Title: Pt(iv) complexes
Inventor: ABRAMS MICHAEL J
IPC: A61K31/555
Filed: 1989-02-01
Granted: 1998-12-22
Abstract: A Pt(IV) complex of the formula <see Fig.1>     wherein A and A' are NH3 or an amino group; R and R1 are hydrogen, alkyl, alkenyl, aryl, aralkyl, alkylamino or alkoxy or functionalized derivatives thereof; and X is halogen or alkyl mono- or dicarboxylate.  The complexes have high antitumor activity, particularly when administered orally.
Patent CA-1303348-C (CA)
Title: Recess contour gauge
Inventor: DICKSON JAMES O
IPC: G01B7/287
Filed: 1989-02-03
Granted: 1992-06-16
Abstract: ABSTRACT         The blade root grooves in a turbine disc are gauged for accuracy by a body resembling the blade root which includes electronic distance gauges in its surfaces. The body is intro-duced into a reference groove with two surfaces in contact with the groove surfaces and the distance between the other surfaces of the body and the corresponding surfaces of the reference groove displayed.  The display is adjusted so that all the distances displayed are equal.  The body may then be intro-duced into a disc groove during production and will indicate whether the disc groove being machined corresponds to the reference groove.
Patent CA-1319461-C (CA)
Title: Polyetherimides and precursors therefor
Inventor: BERDAHL DONALD R
IPC: C08G73/10
Filed: 1989-04-27
Granted: 1993-06-22
Abstract: POLYETHERIMIDES AND PRECURSORS THEREFOR                           Abstract Polyetherimide precursor compositions are prepared by reacting a mixture of at least two diamines selected from the group consisting of o-phenylenediamine, m-phenylenedia-mine and 4-aminophenyl ether with the esterification product of a low molecular weight alkanol such as methanol and an ether tetracarboxylic acid dianhydride, preferably 3,4-di-carboxyphenyl ether dianhydride.  Said polyimide precursor compositions may be converted to polyimides useful in composite formation, by gently heating to remove excess alkanol and subsequently baking at temperatures in the range of about 275-375°C.