baber/WOPTO huggingface dataset:
Patent CA-2010663-C (CA)
Title: Television receiver with auxiliary input connector for video signals of a separated y-c format
Inventor: SENDELWECK GENE KARL
IPC: H04N9/64
Filed: 1990-02-22
Granted: 1999-12-28
Abstract: An auxiliary video input terminal (S-terminal) couples luminance amd chrominance input signals to respective inputs of peaking circuits in the display processor of a receiver. The chrominance input signal is subjected to pre-distortion (de-peaking) to correct for sideband amplitude distortion in the chrominance peaking filter of the receiver thereby preventing color distortion in displayed images. The luminance signal is subjected to additional peaking at a frequency greater than the characteristic peaking frequency of the luminance peaking filter thereby enhancing the sharpness of wideband luminance input signals displayed by the receiver.
Patent CA-2013214-C (CA)
Title: Catalyzed reporter deposition
Inventor: EBERSOLE RICHARD CALVIN
IPC: C07D207/46
Filed: 1990-03-28
Granted: 2002-01-29
Abstract: The present invention concerns a method to catalyze reporter deposition to improve detection or quantitation of an analyte in a sample by amplifying the detector signal which comprises immobilizing an analyte dependent enzyme activation system which catalyzes deposition of reporter by activating a conjugate consisting of a detectably labeled substrate specific for the enzyme system, said conjugate reacts with the analyte dependent enzyme activation system to form an activated conjugate which deposits substantially wherever receptor for the activated conjugate is immobilized, said receptor not being reactive with the analyte dependent enzyme activation system. In another embodiment the invention concerns an assay for detecting or quantitating the presence or absence of an analyte in a sample using catalyzed reporter deposition to amplify the reporter signal. Also described are novel compounds which can be used as reagents to prepare HABA-type conjugates.
Patent CA-2013762-C (CA)
Title: Method of continuous manufacturing of injection molded articles and apparatus thereof
Inventor: FURUKAWA YASUHIRO
IPC: B22D17/22
Filed: 1990-04-03
Granted: 1994-01-11
Abstract: Abstract Method of Continuous Manufacturing of Injection Molded Articles and Apparatus thereof A piece (a runner-strip molded in a runner and articles attaching to the runner-strip) molded in an injection molding unit is pulled out by a pulling-out unit, while it is continued to a proceeding piece to form a series of the pieces. During feeding of the molded and continued piece, the articles are separated from the runner-strip by a shock means of a separating unit. Finally the separated articles and the runner-strip removing articles are collected by the separately provided collecting units. According to a preferable embodiment, after the runner-strip is curved not to return to its original form by a pressuring and curving means, the runner-strip is introduced to a guiding member of the collecting unit for the runner-strip. Then, the runner-strip fed from the guiding member is continuously inserted to a storage of the injection molding unit for reproduction. Accordingly, the articles can be collected and the runner-strip can be reused by continuous and automatic steps of manufacturing of the injection molded articles.
Patent CA-2018228-C (CA)
Title: Cell culture systems and media
Inventor: PARENTEAU NANCY L
IPC: C12N5/02
Filed: 1990-06-04
Granted: 1996-02-27
Abstract: The present invention provides systems, methods and chemically defined media for the cultivation of cells, particularly epithelial cells.  Cells may be cultured with a varied calcium concentration.  Furthermore, a calcium concentation in excess of 1.00mM may be used in the practice of the present invention without loss of a proliferative cell population and maintianing high colony forming efficiencies.  Population doubling times range from about 16 to about 33 hours.  Cells may serially cultivated to achieve from about 20 to about 50 population doublings.
Patent CA-2024313-C (CA)
Inventor: IGAUE TAKAMITSU
IPC: D01F6/04
Filed: 1990-08-30
Granted: 2001-03-13
Abstract: Bulky split fibers having bond strength are produced by preparing a composite synthetic resin film of three layer structure having a polypropylene layer formed of a poly-propylene/polyethylene blend and a polyethylene layer on either surface of the polypropylene layer, slitting and stretching the composite film to thereby form stretched tapes, and causing splitting of the stretched tapes for fibrillation. An integral article is prepared from the resultant split fibers by mixing them alone or with plant fibers and then heating at a temperature between the melting points of polyethylene and polypropylene, thereby integrating together the split fibers with each other or with the plant fibers.
Patent CA-2024505-C (CA)
Title: Dosage form for delivering soluble or insoluble drugs
Inventor: AYER ATUL DEVDATT
IPC: A61K9/22
Filed: 1990-08-31
Granted: 2000-06-27
Abstract: A dosage form is disclosed comprising granule means for delivering soluble to insoluble drug to a warm-blooded animal.
Patent CA-2028068-C (CA)
Title: Adjustable damping and load balancing system for a camera panhead
Inventor: O'CONNOR CHADWELL
IPC: F16M11/12
Filed: 1990-10-19
Granted: 1998-04-14
Abstract: A camera panhead, for panning the camera about a vertical axis and tilting the camera about a horizontal axis, including fluid drag systems and a counterbalance system.  The fluid drag systems each include a drag disk assembly secured to the rotating shaft and drag sector assemblies pivotally mounted to the housing and disposed about the circumference of the disk assembly to define a space containing viscous fluid.  The level of drag exerted may be adjusted by pivoting the sector assemblies toward or away from the disk assembly to vary the space containing viscous fluid.  The counterbalance system includes spring sets mounted in planes substantially perpendicular to the tilt axis.  As the camera tilts, one end of each of the springs remains relatively stationary as the opposite ends rotate about the tilt axis to exert a restoring torque to counterbalance the camera.  The restoring torque exerted follows a sinusoidal curve such that it closely approximates the torque created by the platform and the supported instrument.  Further, the system may be adjusted to vary the level of restoring torque exerted.
Patent CA-2039563-C (CA)
Title: Process for producing unsaturated aldehydes and unsaturated acids
Inventor: KAWAJIRI TATSUYA
IPC: C07C45/37
Filed: 1991-04-02
Granted: 1996-12-31
Abstract: In a process for producing an unsaturated aldehyde or an unsaturated acid by catalytically oxidizing propylene or at least one compound selected from isobutylene, tert.-butyl alcohol and methyl-tert.-butyl ether in a gaseous phase with molecular oxygen or a molecular oxygen-containing gas using a fixed bed multipipe reactor, characterized in that (a) a plurality of composite oxides different in occupied volume, represented by formula MoaWbBicFedAeBfCgDhOx ... (I) wherein Mo denotes molybdenum; W denotes tungsten; Bi denotes bismuth; Fe denotes iron; A denotes at least one element selected from cobalt and nickel; B denotes at least one element selected from an alkali metal, an alkaline earth metal and thallium; C denotes at least one element selected from phosphorus, tellurium, arsenic, boron, niobium, antimony, tin, lead, manganese, cerium and zinc; D denotes at least one element selected from silicon, alminum, titanium and zirconium; O denotes oxygen; a, b, c, d, e, f, g, h and x denote numbers of atoms of Mo, W, Bi, Fe, A, B, C, D and O; when a=2 to 12, b=0 to 10 and a+b=12, c=0.1 to 10, d=0.1 to 10, e=2 to 20, f=0.005 to 3, g=0 to 4, h=0.5 to 30 and x=value determined by an oxidized state of each element, are used as catalysts, (b) a plurality of reaction zones are provided along an axial direction in each reaction pipe of the fixed bed multipipe reactor, and (c) the plurality of the catalysts different in occupied volume are filled in the plurality of the reaction zones such that the occupied volumes become lower from the starting gas inlet side to the outlet side.
Patent CA-2044220-C (CA)
Title: Procedure for the regulation of an asynchronous motor
Inventor: KAHKIPURO MATTI
IPC: H02P21/12
Filed: 1991-06-07
Granted: 1996-08-06
Abstract: Procedure for regulating the stator flux and torque of an asynchronous motor by vector control in an imaginary space vector coordinate system, in which procedure the absolute value (¦?s¦) of the stator flux and the torque (M) are determined in said coordinate system, and in which procedure the calculation coordinates are in such a position that the rotor flux (?r) is at least close to the real axis. In the procedure of the invention, the absolute value of the stator flux (¦?s¦) is regulated by means of the real part (usr) of the stator voltage and the torque (M) by means of the stator frequency (fs) The calculation coordinates are held in said position by adjusting the imaginary part (Usi) of the stator voltage.
Patent CA-2044447-C (CA)
Title: High-voltage circuit breaker with gas insulation and pneumatic operating mechanism
Inventor: LISSANDRIN MARIO
IPC: H02B13/02
Filed: 1991-06-12
Granted: 2000-09-05
Abstract: A high-voltage circuit breaker is housed in a first compartment (20) with SF6 under pressure and comprises an operating mechanism (30) with a pneumatic jack (46) actuated by the gas contained in the first compartment (20) via closing and opening valves (54, 60). The jack (46) is located in a sealed enclosure (34) bounding a second compartment (32) at low pressure playing the role of expansion volume of the gas expelled from the jack (46) at the end of travel of the piston (48). The gas pressure in the jack is controled by means of a control device (98) sensitive to the temperature variation of the gas under pressure in the first compartment (20).
Patent CA-2045953-C (CA)
Title: Connector for use in combination with blocks for wall structures or the like
Inventor: RISI ANGELO
IPC: E04B2/02
Filed: 1991-06-28
Granted: 1995-12-19
Abstract: This  invention relates to improvements  in retaining wall structures derived from a plurality of like structural blocks stacked end-to-end one upon the other in generally horizontally axially extending courses in overlapped wall defining relation. The blocks have a body portion with an axis terminating in opposed end surfaces, and are bounded by front and rear facings and by generally parallel upper and lower surfaces, with the upper and lower surfaces including therewithin respective opposed axially extending recess formations.   More particularly, this invention relates to a connector for selectively positioning and interlocking against transverse displacement the blocks used in constructing the retaining wall structure.  The connector includes a base portion of a configuration for the mating reception within one of the opposed recess  formations  of  the  blocks  in  at  least  one  of  three orientations, and a projection portion upstanding from the base portion of a configuration for the mating reception within the other of the opposed recess formations of the blocks, likewise in at least one of three orientations.  The projection portion and the base portion of the connector are offset a selected extent so as to establish together with respective stacked blocks of the retaining wall structure at least three interlocked and overlapped wall defining dispositions.
Patent CA-2050639-C (CA)
Title: Arylalkylamines, process for preparing them and pharmaceutical compositions containing them
Inventor: VAN BROECK DIDIER
IPC: A61K31/381
Filed: 1991-09-04
Granted: 1997-12-02
Abstract: The invention relates to compounds of formula:     (see fig. I) in which: - Y represents - either a group Cy-N in which ~ Cy represents a phenyl, optionally substituted;  a C3-C7  cycloalkyl  group, a pyrimidinyl group  or  a pyridyl group;                - or a group (see fig. II) in which ~ Ar represents  a phenyl, optionally substituted,  a pyridyl group; a thienyl group; ~ x is zero or one; ~ X represents   a hydroxyl,  a  C1-C4  alkoxy;  a hydroxyalkyl;  a  C1-C4  acyloxy; a  phenacyloxy;  a carboxyl;   a   C1-C4   carbalkoxy;  a   cyano;   an aminoalkylene;  a group -N-(X1)2 in which the groups X1  independently represent hydrogen, a C1-C4 alkyl; a  group (see fig. I) in which Alk represents a  C1-C6 alkyl; a group (see fig. II) in which the Alk1 is a C1-C3 alkylene  and Alk'1 is a C1-C3 alkyl; a C1-C4  acyl; a  group -S-X2 in which X2 represents hydrogen or  a C1-C4 alkyl group; or alternatively X forms a double bond  with the carbon atom to which it is linked and with the adjacent carbon atom in the heterocycle; -  m is 2 or 3; -  Ar'  represents  a phenyl, optionally  substituted;  a thienyl;  a  benzothienyl; a naphthyl; an indolyl;  an indolyl N-substituted with a C1-C3 alkyl; -  R represents hydrogen, a C1-C4 alkyl; -  T represents  a  group  selected  from  -C(O)-   and -C(W)-NH--  W being an oxygen or sulphur atom, and -  Z  represents  either  hydrogen,  or M or  OM  when  T    represents  a  -C(O)- group, or M when T represents  a group-C(W)-NH;   M   represents  a  C1-C6   alkyl;   a phenylalkyl,  a  pyridyl  alkyl;  a  naphthylalkyl;  a pyridylthioalkyl; a styryl; or one of its salts with inorganic or organic acids.
Patent CA-2050787-C (CA)
Title: Low water toilet with pulsed flush
Inventor: SARGENT CHARLES L
IPC: B60R15/04
Filed: 1991-09-06
Granted: 1994-01-11
Abstract: ABSTRACT OF THE INVENTION           A  low  water  flush  toilet  having  a  bowl  with  a horizontal ledge extending around the bowl periphery near its open upper end with a flush water nozzle on the ledge for discharging water in a generally horizontal direction onto the ledge.  A pulsator is provided for producing pulses of flush water that are discharged onto the ledge with the water of each pulse flowing at varying velocities such that as the water flows around the ledge, some of the water will fall off the ledge around substantially the entire periphery of the bowl resulting in wetting of the entire bowl surface for cleaning the bowl.  The pulsator includes a spring biased piston for discharging pulses of water.
Patent CA-2051573-C (CA)
Title: Processes for the preparation of aminoethers
Inventor: KING STEPHEN WAYNE
IPC: C07C217/08
Filed: 1991-09-17
Granted: 1997-11-18
Abstract: A process for preparing aminoethers, particularly bis[2-(N,N-dialkylamino)alkyl]ethers, which comprises contacting a carboxylated aminoether with a metal oxide catalyst under conditions effective to produce the aminoether.  Many of these aminoethers are useful as catalysts in the production of polyurethanes, especially cellular polyurethanes.
Patent CA-2053507-C (CA)
Inventor: MILLER GARY R
IPC: B26B21/44
Filed: 1991-10-16
Granted: 1997-04-29
Abstract: A shaving system of the wet shave type includes body structure with blade structure that has a cutting edge. A housing assembly carried by the body structure adjacent the blade structure includes surface structure disposed for skin-engagement adjacent of the cutting edge, structure that defines an elongated apertured chamber extending generally parallel to the cutting edge of the blade structure, and a member of shaving aid material disposed in the housing chamber.  The housing assembly also includes guide portions disposed in cooperating relation with guide structure of the body structure for dynamic guided movement of the housing assembly against the biasing structure during shaving.  The housing structure apertures communicate with the shaving aid material in the chamber structure and enable shaving aid material to be released and applied through the apertures to the shaver's skin surface during the course of shaving.
Patent CA-2056917-C (CA)
Title: Apparatus for regaining control over oil and gas flowing from "blow out" walls
Inventor: CHABOT STEVE
IPC: E21B33/06
Filed: 1991-12-04
Granted: 1996-11-05
Abstract: An apparatus for regaining control over the flow of oil and gas from "blow out" wells having a housing consisting of two portions which are adapted to be fastened around an insitu well casing.  The housing has a top, a bottom, an exterior surface and a central passage.   The housing is rotatably secured to the insitu well casing, such that the well casing extends through the central passage.   Cutters are provided which communicate with the central passage of the housing. Upon rotation of the housing the cutters move systematically around the circumference of the insitu well casing until it is severed.  Rams are positioned adjacent the top of the housing for closing the central passage upon the severing of the well casing.
Patent CA-2057967-C (CA)
Title: Optical disk drive
Inventor: MATOBA HIROTSUGU
IPC: G11B7/085
Filed: 1991-12-18
Granted: 1996-10-29
Abstract: An optical disk drive discriminates whether a light spot incident on a disk is on a groove or on a land therebetween by eliminating a pulse that appears in a binary envelope signal when the light spot passes a level section on the disk. The elimination is carried out based on an ODF section detecting signal, the ODF section detecting signal is a level section detecting signal which is produced by detecting a level section (ODF section) on the optical disk. The detection is carried out by differentiating an envelope signal, which is the envelope of an electric signal corresponding to the amount of light reflected from the optical disk. Accordingly, even if the optical disk in use has interrupted grooves, the optical head can be accurately moved to a desired track located on a land or on a groove.
Patent CA-2059207-C (CA)
Inventor: SAKAKI MAMORU
IPC: B41M1/36
Filed: 1992-01-13
Granted: 1997-09-09
Abstract: A recording medium contains, within an ink absorbent substrate per se or in an ink receiving coat layer formed on a substrate, basic magnesium carbonate together with a cationic surfactant and/or a nonionic surfactant.  The recording medium is suitably used for color ink jet recording of the both-ways serial printing type and eliminates substantially the tone difference between forward and backward printings and the discoloration during indoor storage.
Patent CA-2064211-C (CA)
Title: Doctor blade supporting structure
Inventor: AIKAWA YOSHIHIKO
IPC: D21G3/00
Filed: 1990-05-15
Granted: 1996-02-20
Abstract: A doctor blade supporting structure for paper making rolls, which is provided with a reinforcing plate  laminated on a blade holder , and a finely adjusting screw  for use in regulating the blade holder via the free edge , which is on the side of the blade , of the reinforcing plate  so that the blade holder can be moved to engage and disengage from the blade .   This structure enables a proper posture of the blade  to be retained, and the blade in use to be engaged with the mat-ing roll surface with a uniform and constant contact pressure dis-tribution at all times.  Moreover, the contact pressure of the blade can be distributed uniformly in the axial direction of the roll surface.
Patent CA-2064503-C (CA)
Title: Endoscopic stapler and hernia repair mechanism
Inventor: ROTHFUSS ROBERT G
IPC: A61B1/00
Filed: 1992-03-31
Granted: 2001-06-12
Abstract: A unique hernia repair stapler is described which allows the forming of staples to attach prosthetics to tissue, or to approximate herniated tissue. The staple is useful in endoscopic operations and may be rotatable or stationary. The stapler has a unique forming and ejecting mechanism; as well, there is the availability of a loading mechanism useful for both cartridges and magazines of staples. An improved staple shape allows for better staple alignment, especially in a multiple load device.
Patent CA-2068790-C (CA)
Title: Antiviral compounds
Inventor: CAMERON JANET MARY
IPC: A61K45/06
Filed: 1992-05-15
Granted: 2005-06-07
Abstract: Combinations comprising a compound of formula (1) (see formula I) or a pharmaceutically acceptable derivative. thereof and an inhibitor of HIV  replication, pharmacetical formulations thereof and their use in the treatment of HIV  infections.
Patent CA-2074872-C (CA)
Title: Use of fluorinated polyurethanes for the treatment of films or sheets made of cellulose, graphite, mica, kaolin, leather and similar natural materials
Inventor: TONELLI CLAUDIO
IPC: C04B41/83
Filed: 1992-07-29
Granted: 2002-02-05
Abstract: A class of cross-linked fluorinated polyurethanes, which can be used for protecting and reinforcing coatings on films, sheets, laminates and similar thin structures made of cellu-lose, graphite, mica, kaolin, leather etc. as well as for adhesive and reinforcing material in multy-layer structures made of films, sheets, laminates and similar thin structures made of graphite, mica, kaolin, etc. These polyurethanes can be obtained starting from the following components: (A) a polyisocyanate consisting of a perfluoropolyether chain bound to the -NCO terminal groups through an aromatic or cycloaliphatic radical; and (B) a polyol consisting of a perfluoropolyether chain bound to the -OH terminal groups through an aromatic or cycloaliphatic radical.
Patent CA-2079000-C (CA)
Title: Method for the use of enzymes in processing and bleaching of paper pulp, and apparatus for use thereof
Inventor: TOLAN JEFFREY
IPC: D21C9/10
Filed: 1992-05-07
Granted: 1996-06-18
Abstract: A method and apparatus for treating wood pulp that includes incompletely washed brownstock, in which the brownstock is treated at a pH range of approximately 7.0 to 9.0 with a hemicellulase enzyme preparation that has a pH optimum below 6Ø          Also, a method and apparatus for treating wood pulp containing incompletely washed brownstock in which the brownstock is treated at a pH range of approximately 6.0 to 9.0 with a hemicellulase enzyme preparation that has a pH optimum below 6.0 and that has a low cellulase content such that not more than about 10,000 FPU are added per ton of pulp.
Patent CA-2079339-C (CA)
Title: Mechanical heart valve with compliant sewing ring
Inventor: WIETING DAVID W
IPC: A61F2/24
Filed: 1991-03-26
Granted: 2002-12-17
Abstract: A mechanical heart valve (11) having one or more leaflets (17) pivotally fitted in a substantially cylindrical shaped valve body (19) formed from a resiliently deformable material. A stiffening member (25) formed from substantially nonresilient material fit about the valve body exterior wall to provide structural integrity to the valve body (19).      Stresses which are normally applied to the heart valve body during the opening and closing of the valve are absorbed or cushioned by the incorporation of a rubber-like body (26) between the stiffening member (25) and the retainer member (33). Further cushioning is provided by incorporating another rubber-like body (28) in the sewing ring (13). This second body extends out from the exterior surface of the valve body. Finally, a length of fabric (15) is positioned about the retainer (33) and shock absorbing bodies (26).      This design provides a precisely calibrated rotational torque which allows for optimum orientation of the leaflets by the implanting surgeon.
Patent CA-2081105-C (CA)
Title: Method of improving the oxidative thermal stability of ethylene polymers
Inventor: HUGHES MORGAN M
IPC: B29C48/76
Filed: 1992-03-04
Granted: 2004-10-05
Abstract: A method of improving the oxidative thermal stability of ethylene polymers is disclosed. The method comprises removing residual unreacted monomer(s), solvent and thermally unstable species from the polymer using a stripping agent and subsequent devolatilization. The resulting polymer is characterized by having an oxidative exotherm of not more than 50 percent of the original polymer, as measured by differential scanning calorimetry, as well as improved taste and odor properties.