baber/WOPTO huggingface dataset:
Patent NO-178000-C (NO)
Inventor: SAWADA SHINICHI
IPC: C09K19/30
Filed: 1989-08-11
Abstract: A liquid crystal composition and a liquid crystal display element prepared therefrom and showing a good contrast are disclosed. The composition has a high clear point and a low viscosity, takes a desired value of  DELTA n (n PARALLEL  - n ORTHOGONAL ) and shows an improved steepness of the voltage-transmittance curve in a display of super-twisted double refraction effect type. The liquid crystal composition contains a first component compound represented by (I) (wherein R<1> represents an alkenyl group bearing 2 to 8 carbon atoms) and a second component compound represented by (II) (wherein R<2> represents an alkyl group bearing 1 to 8 carbon atoms, R<3> represents H or F, R<4> represents an alkyl group bearing 1 to 8 carbon atoms, an alkoxy group, F or CN). A liquid crystal display element prepared from this composition is also disclosed.
Patent NO-177266-C (NO)
Inventor: WAGNER ADALBERT
IPC: A61K31/38
Filed: 1991-04-03
Abstract: The invention relates to compounds of the formula <IMAGE> in which X, Y and Z are identical or different and are N or CR<2>, R<1> and R<2> are as defined in the description, L is an alkylene radical, q = 0 or 1, and A is the radical of a fused heterobicycle. The invention furthermore relates to a method for the preparation of the abovementioned compounds, to compositions containing them, and to their use.
Patent NO-180375-C (NO)
Inventor: LEACH MICHAEL JOHN
IPC: C07D239/28
Filed: 1991-05-31
Abstract: The invention provides a series of compounds of formula (I) <CHEM>  and salts thereof, wherein for example, R<1> and R<2>, which may be the same or different each represent -NR<1><3>R<1><4> where R<1><3> and R<1><4> may each independently represent hydrogen or alkyl or, taken together with the nitrogen atom to which they are attached form a heterocyclic ring, optionally substituted by one or more alkyl or arylalkyl groups and optionally containing a further heteroatom;  R<3> is hydrogen, haloalkyl, alkoxymethyl or alkyl;  R<4> is hydrogen, nitro or halo;  R<5> is hydrogen or halo;  R<6> is hydrogen, halo, nitro, amino, alkylamino or dialkylamino;  R<7> is hydrogen or halo;  R<8> is hydrogen or halo; The compounds may be used for the treatment or prophylaxis of a neurodegenerative or other neurological disorder of the CNS, the aetiology or which includes excessive release of the neurotransmitter glutamate.
Patent NO-179846-C (NO)
Inventor: TERAUCHI MICHIYOSHI
IPC: E04B1/68
Filed: 1991-09-03
Abstract: The invention relates to a seal (1) for a joint comprising a cylindrical inner core layer (2) made of a water-unexpansible flexible material and having an internal opening (2a), and an outer coating layer (3) which is made of a water-expansible rubber. The outer coating layer (3) coats the inner core layer (2) and has penetrating openings (4) in the form of slits, pinholes or the like. The penetrating openings (4) extend to penetrating openings in the inner core layer (2) and communicate with the internal opening (2a) through the penetrating openings of the inner core layer (2). <IMAGE>
Patent CA-2004460-C (CA)
Inventor: SCHULZE-BECKINGHAUSEN JOERG ER
IPC: E21B19/16
Filed: 1989-12-01
Granted: 2004-03-09
Abstract: An active jaw for a power tong is provided with an upper cam and a lower cam which are shaped so that rotation of the rotary relative to the active jaw in either sense from a first position results in the active jaw being applied to a pipe via a roller. The active jaw can be released by reversing the direction of rotation of the rotary. A peg may be used to limit movement of the active jaw relative to the rotary to prevent the active jaw being reapplied to the pipe.      Pipes of different diameters may be gripped by using rollers of different diameters and, optionally, different active jaws shaped to grip the pipe. In a second embodiment a brake band acts on a drum which supports the active jaw. When the rotary is started the active jaw is restrained from rotation. This relative movement applies the dies on the active jaw to the pipe.      Further rotation of the rotary then overcomes the braking force and the rotary, drum and active jaw rotate in unison. An adjustable bolt is provided to prevent the active jaw being reapplied when the rotary is reversed.
Patent CA-2004580-C (CA)
Title: Carrier rack drive
Inventor: LONGROD SCOTT J
IPC: B41J19/20
Filed: 1989-12-05
Granted: 1997-03-11
Abstract: An improved carriage moving mechanism on a frame for a typewriter or printer.             (a) The carriage movable mounted on a guide rail for longitudinal movement of the frame;             (b) The traveling motor is fixedly mounted on the carriage including a pinion attached to a rotary shaft of the motor;             (c) The rack is attached to the frame extending longitudinally substantially in parallel to the guide rail;             (d) The rack being rigid longitudinally thereof and being flexible in a flex direction perpendicular to the longitudinal direction, the rack including a tooth side adapted to engage with said pinion, the surface of the rack including the line of teeth and its surface opposite the pinion being substantially parallel to the guide rail; and (e) A spring loaded slider assembly mounted as a part of carriage and adapted to make continuous sliding contact with the surface of the rack in opposition to the tooth surface of the rack in the area of the pinion rotation.
Patent CA-2004867-C (CA)
Inventor: GARAPON JACQUES
IPC: C08G63/42
Filed: 1989-12-07
Granted: 1997-04-15
Abstract: Process for the condensation of at least one epoxide with at least one cyclic anhydride of a dicarboxylic acid in the presence of a catalyst consisting of at least one peroxide complex of titanium of the peroxo type of form A 
<IMAGE>
 
<??>The said process makes it possible to obtain a perfectly alternating polyester. 
<IMAGE>
Patent CA-2007012-C (CA)
Title: Simulcast system and channel unit
Inventor: ERICKSON PAUL M
IPC: H04H20/67
Filed: 1990-01-03
Granted: 1993-06-01
Abstract: ABSTRACT OF THE DISCLOSURE A simulcast broadcast uses digital signal processing techniques to scale pulse coded modulation samples of a signal for broadcast. Samples are adjusted to fully utilize all quantization levels representable by an 8-bit word. Time delay is adjustable using digital techniques by writing and reading data into and out of a RAM. Signal amplitude is adjustable by multiplying samples by a numeric factor. A computer can be used to adjust processing delay and amplification of the digital signal processor.
Patent CA-2012873-C (CA)
Title: Cable clamp
Inventor: CORNELL PAUL A
IPC: H01R4/50
Filed: 1990-03-22
Granted: 2000-05-30
Abstract: A cable clamping device includes a female clamping member that includes a C-shaped head receiving portion and a tail. A male clamping member includes a cylindrical lead positioned to rotate inside the head receiving potation of the female clamping member, and a radially extending tail. The free ends of the twa tails define a total of four opposed surfaces, and these four opposed surfaces are parallel to one another when the two tails are clamped together. The lower side of the female clamping member defines a mounting plane, and the head receiving portion of the female clamping member extends bath above and below the mounting plane. In this way, headroom requirements for the cable clamping device are reduced, and shorter fasteners can be used to secure the device in place.
Patent CA-2018501-C (CA)
Title: Method for mirror passivation of semiconductor laser diodes
Inventor: GASSER MARCEL
IPC: H01S5/028
Filed: 1990-06-07
Granted: 1995-08-15
Abstract: A method for mirror passivation in the fabrication of semiconductor laser diodes. Key of the method are two basic steps :  (1) providing a contamination-free mirror facet,   followed  by  (2)   in-situ  application  of  a continuous,  insulating  or  low  conductive  passivation layer  which  consists  of  a  material  that  acts  as  a diffusion barrier for species capable of reacting with the semiconductor and that does not itself react with the mirror surface.      The contamination-free mirror surface is obtained by either  cleaving  in an  environment  where  no  initial contamination takes place,  or by cleaving in  air  or mirror etching, with subsequent mirror surface cleaning. The passivation layer consists of Si, Ge or Sb.
Patent CA-2025534-C (CA)
Title: Recording cartridge, ink container and ink jet apparatus
Inventor: HATTORI YOSHIFUMI
IPC: B41J2/05
Filed: 1990-09-17
Granted: 1997-09-09
Abstract: A recording head cartridge includes a recording head for ejecting recording liquid in the form of a droplet thereof; a container for containing the recording liquid; a communicating pipe for substantially balancing pressure in the container with an ambient pressure; a blocking plate disposed adjacent an inside opening of the pipe at a position away from the opening.
Patent CA-2025872-C (CA)
Inventor: OWENS ROBERT C
IPC: A61B17/00
Filed: 1990-09-20
Granted: 1995-11-21
Abstract: A valvuloplasty catheter (10) is described which includes  an  elongated  flexible  plastic  tube  (12) dimensioned so as to allow it to be passed through the vascular system.   Affixed to the distal end portion (14) of the tube (12) is an inflatable expander member (32) which is intended to be positioned in the annulus of the valve to be treated.  Inflation ports (28, 30) expose the interior of the expander member (32) to the lumen (18) of the tube (12) so that when an inflation fluid is injected, under pressure, at the distal end of the tube, the expander member (32) expands radially outward to spread the valve and free-up its leaflets. The novelty resides  in providing first and second inflation ports (28, 30) of differing size so that the expander member (32) inflates so as to create a dog-bone effect, tending to stabilize the expander member (32) relative to the valve being treated.
Patent CA-2027728-C (CA)
Title: Anchor assembly for a mine roof bolt
Inventor: LAPOHN GARY
IPC: F16B13/06
Filed: 1990-10-16
Granted: 1996-08-06
Abstract: Anchor assembly for a mine roof bolt or the like in which the bail of an anchor  shell  having leaves for engaging the  side wall of a bore hole has spring fingers for snagging the side wall of a bore hole to prevent downward movement to the anchor shell. The bail has a central opening for the roof bolt to pass through with the central  opening having projections  that extend inwardly of the opening to form an interference fit with the threads of the bolt as it is rotated through the opening. The leaves of the anchor shell which  are clamped against the side wall have surfaces which diverge from tapered surfaces of the plug nut for expanding the anchor shell to prevent plowing between the plug nut and anchor leaves. The surfaces on the leaves extend downwardly from the top to about the bottom of the leaves.
Patent CA-2028148-C (CA)
Inventor: JEANNOTTE ANTHONY C
IPC: G01N21/59
Filed: 1990-03-21
Granted: 1995-11-14
Abstract: Radiant energy is transmitted to a probe element (10) including an interior conical reflecting surface (17) and a fluid sample chamber (18).  Portions of the light which have been transmitted, partially attenuated, or scattered by a fluid sample (73) in the sample chamber (18) are directed by at least a portion of the interior conical reflecting surface (17) to means for collecting the transmitted, partially attenuated, or scattered light.  A stilling valve (12) incorporated into the probe element (10) enable elimination of entrained gas bubbles from the chamber (18).
Patent CA-2028926-C (CA)
Inventor: NAKAMURA TAKASHI
IPC: H01L39/12
Filed: 1990-10-30
Granted: 2000-02-15
Abstract: The present invention relates to a superconducting ceramic structure consisting of a superconducting ceramic substrate whose surface carries a film plasma-polymerized from a silazane bond-containing organosilicon compound. This structure is characterized by the absence of deterioration in its superconducting properties even upon contact with water or water vapor, and thus by the long-term retention of its superconducting properties.
Patent CA-2031400-C (CA)
Title: Stabilized organic material containing o-hydroxyphenyl-s-triazines
Inventor: BIRBAUM JEAN-LUC
IPC: C09D7/12
Filed: 1990-12-03
Granted: 2001-06-19
Abstract: o-Hydroxyphenyl-s-triazines of the formula I   (see formula I) in which n is 1 to 4 and R1 to R7 are as defined in claim 1, can be used, in combination with sterically hindered amines of the polyalkylpiperidine type, for stabilizing organic polymers. Some of these compounds are novel and can also be used without polyalkyl-piperidine.
Patent CA-2036983-C (CA)
Title: Process and device for manufacturing structural members made of fibre composites
Inventor: PABSCH ARNO
IPC: B29C70/06
Filed: 1991-02-25
Granted: 1994-06-07
Abstract: ABSTRACT      A process for manufacturing structural members made of fibre composites which have a tubular region and a plane flange at either end of the region is disclosed.  The process comprises the following steps:  on a winding core determining the inner contour of the tubular region, applying a winding comprising fibre strands which cross one another at an angle to the axis of the core; at the ends of the tubular region causing conical widening of the tubular region by applying the strands over spreader elements lying at a distance from the core; on completion of the winding, placing onto the tubular region of the winding a form tool which embraces the tubular region and is provided at both ends with a face determining the inside of said plane flanges, said form tool having a rounded edge between the tubular region and said face; and applying pressure by an elastic medium to the conical regions of the winding, prior to being applied onto the faces of the mould, in the region of the rounded edges to cause the winding to lie adjacent to the faces of the form tool.
Patent CA-2037578-C (CA)
Title: Copying method of system data and copying adaptor
Inventor: MORIDAIRA HIDEO
IPC: G06F9/445
Filed: 1991-03-05
Granted: 1996-08-13
Abstract: Copying method of system data at the time of updating of a main control apparatus in a system using a computer, and copying adaptor used for this method.  The method comprises replacing the control program memory of a main control apparatus, when it is updated, by an adaptor having the function of transferring and retaining system data, transferring and storing the system data stored in the system data memory of the main control apparatus to and in the adaptor, and connecting the adaptor to a new main control apparatus to transfer the system data so as to store the system data in the system data memory of the new main control apparatus.
Patent CA-2039813-C (CA)
Title: Boost modified, droop compensated direct acting pressure regulator
Inventor: HOOD MARK ERBY
IPC: F16K31/126
Filed: 1991-04-04
Granted: 2001-08-21
Abstract: A self-operated droop compensated regulator includes a spring easing and a lower easing, sandwiching a diaphragm. The lower casing has inlet and outlet ports. A one piece cam stem and relief seat is mounted for movement with the diaphragm and includes a first cam surface far directly engaging a movable disk holder. The disk holder is movable in a straight line within an orifice tube that supports the valve seat. The cam surface moves the disk holder at a nonlinear rate with respect to the diaphragm. A pressure relief mechanism is incorporated within the upper portion of the diaphragm. A bias spring acts, between a second similar cam surface on the opposite side of the stem and the disk holder, to maintain the first cam surface in contact with the disk holder. The orifice tube has a removable boost end cap for providing a boost action to the diaphragm. One type of boost end cap is snapped in position over the end of the orifice tube and has a plurality of fingers with latch portions that engage an annular groove on the orifice tube. One of the fingers has a hook end that forms a guide for the rear of the cam stem in a sliding contact. A hole in the end cap reduces the boost effect. Another type of boost end cap has a pair of arrow-shaped fingers that engage a pair of retention slots in the end of the orifice tube and a guide finger that engages a guide slot on the tube. The end of the guide finger engages the rear of the cam stem.
Patent CA-2041117-C (CA)
Title: Combined road and aircraft vehicle
Inventor: MILLER HARVEY R
IPC: B60F5/02
Filed: 1991-04-24
Granted: 2001-11-20
Abstract: A vehicle chassis is supported on front and rear wheels for road and runway engagement. A propeller assembly is dis-posed between the front and rear wheels and faces the rear.      Wing assemblies on opposite sides of the chassis are foldable along the sides of the chassis to form side panels for the road form of the vehicle. A tail assembly on the chassis is shiftable forwardly and rearwardly and has a pair of vertical stabilizers connected together at the top by a horizontal laterally extending stabilizer. A pressure regulated re-tractable stabilizing wheel is provided between the front and rear wheels and is arranged to engage a runway and provide stabilizing functions for take off and landing.
Patent CA-2041922-C (CA)
Inventor: MAHONEY JAMES V
IPC: G06V10/422
Filed: 1991-05-07
Granted: 1995-07-18
Abstract: A body of data is operated upon hierarchically in such a way that, at one or more levels of the hierarchy, the number of aggregative data items produced is not substantially less than the number produced at the preceding level. The body of data can be an image, so that each aggregative data item indicates an attribute of a distinct image region. Such attributes include presence of a single connected component or properties of a component such as width, orientation and curvature. A class of abstract computation structures, called exhaustive hierarchical structures, is introduced in which such dense or exhaustive hierarchical aggregative data analysis processes can be embedded. The embedding of exhaustive hierarchical analysis in a computation structure of this class is analogous, and in some implementations similar in processing efficiency, to the embedding of conventional hierarchical aggregative data analysis processes in tree structures. The exhaustive hierarchical embedding introduced analyzes extensively overlapping regions in a manner that places minimum demands on the number of communication links, memory resources, and computing power of the individual processing units. Specifically, the embedding scheme is a general scheme for mapping locations in an array into nodes at two adjacent levels of a binary exhaustive hierarchical structure. The scheme establishes positional relations in the array that correspond to parent-child relations at a given level in the exhaustive hierarchical computing structure; these positional relations are uniform power-of-two offsets in each array dimension at a given hierarchical level. Consequently, this exhaustive hierarchical analysis can be implemented efficiently using conventional communication techniques, including hypercube and grid techniques, on a massively parallel processor. To minimize memory requirements, hierarchical results at each location can be encoded across all levels.
Patent CA-2042064-C (CA)
Title: C-erbb-2 external domain:gp75
Inventor: STUART SUSAN G
IPC: G01N33/577
Filed: 1990-08-02
Granted: 2008-10-21
Abstract: Disclosed are methods and compositions for identifying malignant tumors that overexpress the c-erbB-2 oncogene. Assays useful for diagnosis and prognosis of neoplastic disease are provided which detect the external domain of c-erbB-2, the glycoprotein gp75 and quantitate the level of gp75 in the biological fluids of mammals carrying a tumor burden.     Further disclosed are recombinant, synthetically and otherwise biologically produced novel proteins and polypeptides which are encoded by the external domain DNA  sequence of the c-erbB-2 oncogene (the gp75 gene) or fragments thereof. Such gp75 proteins and polypeptides are useful as vaccines, therapeutically in the treatment of cancer either alone or in combination with chemotherapeutic agents.     Also disclosed are antibodies to such gp75 proteins and polypeptides which are useful diagnostically and therapeutically. Still further disclosed are test kits embodying the assays of this invention.
Patent CA-2046930-C (CA)
Title: Stabilisation of k1k2p pro
Inventor: KOHNERT ULRICH
IPC: B65G53/58
Filed: 1990-12-19
Granted: 1997-01-14
Abstract: Pharmaceutical preparation of a non-glycosylated t-PA derivative K1K2P pro with an enzymatic activity of at least 0.4 MU/ml. and a pH value of 4.5 to 6, which contains citrate and at least one compound from the group consisting of a) ascorbic acid, b) EDTA, c) amino compounds of the formula whereby X = SO3H, CH(NH2)-CO2H, CO2H, H, NH2 or OH, R = C1-C9-alkylene, C3-C6-cycloalkylene or benzylidene and R1 and R, independently of one another, are H or C1-C3-alkyl, d) guanidinobutyric acid, e) dimethylbiguanide, f) arginine, g) glucosamine, fructose, h) pyrimidine nucleosides and pyrimidine nucleotides, i) carboxylic acids substituted with one or more hydroxyl, keto and/or further carboxyl groups, as well as medicaments based on the t-PA derivative K1K2P pro as active material and processes for their production.
Patent CA-2050056-C (CA)
Title: Cleaning of the exterior surface of a pipeline to remove coatings
Inventor: CHAPMAN GORDON R
IPC: B08B9/023
Filed: 1991-08-27
Granted: 1999-10-05
Abstract: An apparatus for the cleaning of the exterior surface of a pipeline or the like includes a frame defining a longitudinal passage of a size sufficient to permit the pipeline to extend longitudinally therethrough. A first cleaning unit and a second cleaning unit are mounted on the frame. Each cleaning unit includes a plurality of jet modules. In turn, each jet module includes a rotatable jet nozzle mounted to deliver a jet of cleaning liquid toward the pipeline exterior surface. A high pressure cleaning liquid source is also provided and is connected to the rotatable jet nozzles to provide high pressure cleaning liquid to the nozzles.
Patent CA-2051620-C (CA)
Title: Low temperature, high speed extrusion coating process and polyethylene compositions useful therefor
Inventor: EDWARDS RAY
IPC: C09D123/06
Filed: 1990-06-14
Granted: 2000-05-02
Abstract: Novel polyethylene compositions comprising a blend of a polyethylene component having defined properties and a specific quantity of defined tackifying resins are disclosed. In addition, process for extrusion coating at high speeds and relatively low extrusion coating temperatures employing invention compositions is disclosed.
Patent CA-2052169-C (CA)
Title: Invalid lift
Inventor: BLAIN JOSEPH E
IPC: A61H3/00
Filed: 1991-09-24
Granted: 1995-02-07
Abstract: This  invention relates to a lift to assist persons to stand or walk, where they have insufficient strength in their legs.  The lift includes a supporting frame having a front portion extending in front of the person and side portions on each side.   There are wheels beneath the supporting frame to enable the lift to be manoeuvered.   A lift arm is pivotally mounted on the supporting frame for movement in a vertical plane.   A generally U-shaped support member is at the other end of the lift arm and comprises a pair of supporting bars adapted to fit under the armpits of a person.  There are means for maintaining the U-shaped support substantially parallel to the ground as the lift arm is raised or lowered and hydraulic means for raising or lowering the lift arm.
Patent CA-2053027-C (CA)
Title: Live load packing system
Inventor: WEARS WILLIAM EVERETT
IPC: F16K41/02
Filed: 1991-10-08
Granted: 2002-02-12
Abstract: An improved live load packing system for sealing an operating valve member in a fluid valve. A packing follower includes a base and a guide sleeve adapted for slidable engagement on the operating valve member. A series of Belleville disk springs slidably engage the guide sleeve and maintain concentric mounting during loading of V-type TFE packing members to ensure uniform concentric spring loading and to prevent undesired side loading.