baber/WOPTO huggingface dataset:
Patent NO-166586-C (NO)
Inventor: YOKOYAMA NAOKATA
IPC: C07D471/04
Filed: 1987-11-24
Abstract: Compounds of the formula IA or IB <CHEM> wherein A represents an optionally substituted saturated divalent grouping which together with the two carbon atoms to which it is attached represents a fused 8, 9, 10, 11 or 12 membered carbocyclic ring selected from cycloocteno, cyclononeno, cyclodeceno, cycloundeceno and cyclododeceno; each unsubstituted or mono-, di-, tri- or tetra-substituted on carbon atoms within A by lower alkyl, lower alkylidene, C3-C7-cycloalkyl, hydroxy, acyloxy, oxo, lower alkoxy, aryl or aryl-lower alkoxy; and when disubstituted on the same carbon atom within A, said carbon atom in each ring is substituted by two lower alkyl or two aryl-lower alkyl groups, or by one lower alkyl or aryl-lower alkyl group and one group selected from hydroxy, lower alkoxy, aryl-lower alkoxy and acyloxy groups; or each disubstituted on the same carbon atom within A by straight chain alkylene of 2 to 6 carbon atoms forming the carbon to which the alkylene chain is attached a spiro-fused 3 to 7 membered ring; or each ring ring; R1 represents lower alkyl, phenyl, or phenyl substituted by one or two radicals selected from lower alkyl, lower alkoxy, halogen and trifluoromethyl; or R1 represents a five-membered unsaturated heterocyclic radical containing one hetero atom selected from sulfur, oxygen, and unsubstituted or lower alkyl substituted amino nitrogen, or a said radical containing two hetero atoms consisting of one imino nitrogen and one member selected from unsubstituted or lower alkyl substituted amino nitrogen, sulfur and oxygen; or R1 represents an unsaturated six membered heterocyclic radical containing one or two nitrogen atoms; or R1 represents a bicyclic benzo-fused five membered unsaturated heterocyclic radical containing one hetero atom selected from sulfur, oxygen and unsubstituted or lower alkyl substituted amino nitrogen; or R1 represents a bicyclic benzo-fused five membered unsaturated heterocyclic radical containing two hetero atoms consisting of one imino nitrogen and one member selected from unsubstituted or lower alkyl substituted amino nitrogen, oxygen and sulfur; or R1 represents a bicyclic benzo-fused 6-membered unsaturated heterocyclic radical containing one or two nitrogen atoms; or R1 represents any of said heterocyclic radicals mono- or di-substituted on carbon by lower alkoxy, lower alkyl or halogen; R2, R3 and R3' independently represent hydrogen or lower alkyl; or tautomers thereof; or a pharmaceutically acceptable salt thereof; are useful as benzodizepine receptor modulators for the treatment of nervous system disorders. Pharmaceutical compositions, methods of preparation and certain intermediates useful as benzodiazepine receptor modulators are also disclosed. They can be prepared for example by reacting a pyridin-4-one-3-carboxylate compound (III) with a compound of formula R @-NH-NH-R1(IV).
Patent NO-177421-C (NO)
Inventor: DEBRAS GUY
IPC: C07C67/00
Filed: 1988-09-13
Abstract: The present invention relates to a process for removing arsine from a light olefin-containing hydrocarbon feedstock, said process comprising the steps of (a) passing said feedstock over an absorbent material comprising nickel deposited on a support material wherein nickel is present as both nickel oxide and metallic nickel; and (b) recovering a stream having a substantially reduced arsine content.
Patent NO-170435-C (NO)
Inventor: PEDERSEN KAI
IPC: E05B27/00
Filed: 1990-03-12
Abstract: Cylinder lock comprising a plug (1) having a key channel (2), a housing (3) surrounding the plug and a number of bores (11-17) in the plug and the housing for divided locking pins (21) adapted to be shifted in their longitudinal direction in the bores by means of a key inserted in the key channel (2). An intermediate sleeve (5) is provided between the plug (1) and the housing (3), and is adapted to be rotated about the same axis (10) as the plug. The sleeve (5) has bores corresponding to the bores (11-17) in the housing, for through-going locking pins (21). The locking pins are divided for establishing shear surfaces both between the plug (1) and the sleeve (5) and between the sleeve (5) and the housing (3), upon insertion of a correct key. An additional bore (19) for an auxiliary pin (20) is provided in the housing (3) and the sleeve (5) and adapted to be engaged by surfaces (1A, 1B) on the plug (1), so that the blocking effect of the auxiliary pin with respect to the sleeve (5) in relation to the housing (3), is removed when the plug (1) is rotated through a given angle in relation to the sleeve. Drive means (7, 9) are adapted to transfer the rotation of the plug beyond said given angle, into movement of a blocking member in a lock, for example a locking bolt.
Patent NO-175403-C (NO)
Inventor: KUBICKI JORN
IPC: A61F13/20
Filed: 1990-08-29
Abstract: A multilayer tampon in the form of a rod for medical or hygienic purposes is described and has the following features: 
 
  a tampon core (2) of compressed fibrous material; 
  a tampon sheath (3) of hardened collagen or gelatin foam impregnated with active substances, 
  a recovery thread (4), 
  where appropriate an outer coating of lubricant (6). 
 
<??>The active substances in the tampon sheath can also be mixed with a retarding agent. It is possible in this way to release the active substance in small doses over a long period of time. 
<IMAGE>
Patent NO-180008-C (NO)
Inventor: JONG FEIKE DE
IPC: C07C69/157
Filed: 1994-01-21
Abstract: The invention relates to a method for preparing an ester composition in which at least one activated phenolic ether group of a molecule is reacted with at least one haloformyl group of another molecule.
Patent CA-2004910-C (CA)
Inventor: TAKAHASHI YOSHINORI
IPC: A47J37/00
Filed: 1989-12-07
Granted: 1995-08-01
Abstract: An automatic bread-making device comprises a housing, a cooking vessel removably arranged therein and provided at its bottom with a rotatable shaft, a kneading blade removably attached to the shaft, and a driving mechanism for rotating the blade through the shaft.  The blade has at least one crescent-shaped projection at a wall surface of a bore for attachment of the blade to the shaft, while the shaft has at least one groove extending parallel to a line that intersects the axis of the shaft to form a head with a shape similar to that of the opening formed between the inner wall of the bore and a free end of the projection. The device further includes a sequence control system for controlling the driving mechanism and heaters.  During kneading the shaft is so rotated that, when the rotation of the blade is to be reversed, the shaft is reversed and stopped just before engagement of the driving disk with a coupling member between the shaft and the driving mechanism. The result is quieter operation.
Patent CA-2007965-C (CA)
Title: Suppression of the evolution of hydrogen sulfide gases from petroleum residua
Inventor: WEERS JERRY J
IPC: C10L1/233
Filed: 1990-01-17
Granted: 1996-02-27
Abstract: Hydrogen  sulfide  gas evolution  during  storage  or transport  of  petroleum  residua  are  suppressed  by  the incorporation of an effective amount of a diamine of the formula   wherein R1,  R2,  R3,  and R4 are independently an alkyl radical containing 1 to 14 carbon atoms,  (CH2)n-OR6 or cycloalkyl  containing  5  or  6  carbon  atoms  and  R5  is hydrogen or methyl.   R1 and R2 and R3 and R4 can be alkylene  groups  joined  together with  their  respective adjacent N to form a heterocyclic ring.  R6 is hydrogen or an alkyl radical having 1 to 5 carbon atoms and n is an integer of 1 to 5.
Patent CA-2008014-C (CA)
Title: Process and catalyst for the preparation of 2,2'-bipyridyls
Inventor: GOE GERALD L
IPC: B01J23/755
Filed: 1990-01-18
Granted: 1999-05-11
Abstract: A process for the preparation of 2,2'-bipyridyls by reacting a pyridine base in the presence of a nickel catalyst which comprises a significant amount of elemental nickel bound on a suitable support.  The coupling reaction takes place in several reactor designs at a temperature of about 200-240°C and a pressure sufficient to maintain at least some of the base in a liquid state during the reaction.
Patent CA-2009791-C (CA)
Title: Variable density foam vehicle seat
Inventor: DEVIEW GREGORY E
IPC: A47C7/18
Filed: 1990-02-12
Granted: 1995-03-14
Abstract: A vehicle seat assembly having a  molded foam cushion body and  a pair of  molded foam  bolster bodies  covered by  a cover  member which  is bonded to the cushion body and the bolsters  during molding.  The  cushion body foam is poured  in place onto  a portion of the  cover member and  the foam for the bolster  bodies is poured in  place adjacent the cushion  body preferably at the same  time.  The bolster bodies  can thus have a  density differing from  the  foam  cushion body  to  provide  differing  deflection characteristics in the bolsters than in the cushion body.
Patent CA-2010450-C (CA)
Inventor: HOPKINS WEBSTER DALE
IPC: G09C1/00
Filed: 1990-02-20
Granted: 1998-08-18
Abstract: The invention comprises a method for encrypting data for communication between a host computer and each of a plurality of remote terminals in a network. A method is provided for periodically generating a unique dynamic encryption key for each of said plurality of terminals using a system seed key residing only in the host computer. The dynamic encryption key generated for use by said terminal in encrypting data transmitted to said host computer and for decrypting data received from said host computer. The method includes storing at said terminal the dynamic key previously generated by said host for said terminal.
Patent CA-2011541-C (CA)
Title: Disc player
Inventor: OTSUBO HIROSHI
IPC: G11B19/12
Filed: 1990-03-06
Granted: 1994-07-26
Abstract: A disc  player  capable  of  playing  discs  of different types such as:  discs where only a digital audio signal is contained in a first frequency band; discs where only an analog audio signal is contained in a frequency band other than the first frequency band; and, discs where digital and audio signals are contained in the first frequency band and the other frequency band.  Processing arrangements are further included to determine (according to disc size and/or presence of a table of contents) whether a currently loaded disc is recorded in the same format as a previous  disc which was  loaded immediately prior thereto, and if the same, playing the currently loaded disc according to the same reproduction settings as those for the previous disc.
Patent CA-2017973-C (CA)
Title: Cementable hip prosthesis
Inventor: SKRIPITZ WALTER
IPC: A61F2/36
Filed: 1990-05-31
Granted: 2002-10-29
Abstract: Presented is a cementable thigh section of an acetabular prosthesis that has a shaft tapering toward its lower end, and on whose upper end is formed a flange-like support collar. Disposed in removable fashion below the support collar is an elastic spacer ring that at least partially covers the support collar. Worked in from the upper end of the thigh section is a main boring that preferably branches out into branch borings, that comes out from the thigh section in the upper shaft portion, and serves for bringing the bone cement into the intermediate space between bone wall and thigh section after the thigh section is emplaced in the bone cavity.
Patent CA-2021757-C (CA)
Title: Constant humidity evaporative wicking filter humidifier
Inventor: STANEK TERRENCE L
IPC: F24F6/04
Filed: 1990-07-23
Granted: 1995-03-21
Abstract: A humidifier which includes a water reservoir tank for holding a supply of water which is mounted on a supporting base.  The water reservoir tank is constructed to dispense water as needed into a catch basin formed in the supporting base.  A wick element of predetermined height is provided and has its lower end positioned within the catch basin for absorbing water up into the wick element by capillary action.  The humidifier further includes a motor driven fan mounted on the supporting base relative to the wick element for drawing air with increased humidity through the wick element for discharge from the humidifier into the surrounding atmosphere.
Patent CA-2023756-C (CA)
Inventor: KURABAYASHI KEN
IPC: H01G11/66
Filed: 1990-08-22
Granted: 1995-08-01
Abstract: The  polarization  electrode  of  an  electrical double-layer  capacitor  cell  is  constituted  with  solid plate-like polarizing electrodes  (61,71)  and paste-like polarizing  electrodes  (6,7).     The  solid  plate-like polarizing electrodes (61,71) are counterposedly arranged by being separated with a separator (5).   The paste-like polarizing electrodes (6,7) are coated on the surfaces at the outside of the solid plate-like polarizing electrodes (61,71).    Since  the  paste-like  polarizing  electrodes (6,7)  makes  good  contact  to  the  solid  plate-like polarizing   electrodes   (61,71)   and   the   collecting electrodes (1,2), the contact resistance becomes small.
Patent CA-2028029-C (CA)
Title: Catv environmental f-connector
Inventor: TARRANT DENNIS E
IPC: H01R9/05
Filed: 1990-10-19
Granted: 2001-04-03
Abstract: An F-type coaxial cable connector includes a tapered interface surface for even compression of the interface gasket and prevention of shearing. The cable is retained in the connector by a crimping arrangement including a cylindrical outer ferrule designed with a series of protruding ridges and an inner body of the connector which has a series of V-shaped ridges, the size and shape of the ridges being optimized for both cable retention and waterproofing. The interface is also part of inner body, thus minimizing the number of the loose or secondary parts required for installation. A groove in the inner body accomodates a second o-ring located between a coupling nut and the inner body.
Patent CA-2030845-C (CA)
Title: Evacuation or rescue device for a non-ambulatory person
Inventor: GRAF JORG WALTER
IPC: A61G1/01
Filed: 1990-11-26
Granted: 2001-03-06
Abstract: An evacuation or rescue device for a bed-ridden ar non-ambulatory person adapted to quickly secure the person to a movable underlying mattress or the like comprises two sheets deployable one from the head-end and one from the foot-end. When deployed the head-end sheet meets the foot-end sheet over the persons chest or abdomen; the head-end sheet having an opening for the head. The two sheets, which are interconnected underneath the mattress, are then tightened downwardly over the long sides of the mattress by means of looped ropes pulled one from the head-end side and the other from the foot-end side. The ropes are self cleating when tightened and quickly secure the person in readiness for rescue and evacuation by a single individual if necessary.
Patent CA-2031673-C (CA)
Title: Weight set connecting mechanism for subsea tubular members
Inventor: FARRELL THOMAS J
IPC: F16L37/08
Filed: 1990-12-06
Granted: 2002-10-15
Abstract: An improved mechanism for connecting tubular members in a subsea well in which the members are locked together in a preloaded condition. In the preferred form of the invention the loading is provided by a series of fingers mounted on the inner tubular member and flexing through a restriction in the outer tubular member during landing and then springing back from such flexed position to engage and wedge against a tapered shoulder at the lower end of the restriction to both lock the inner tubular member in its seated position and also to provide the preloading desired. In a second form, the inner member is landed on a ring which is engaged on the outer tubular member landing seat and then further lowering of the inner member moves a wedge on the inner member to cause the upper end of the ring to engage the internal profile of the outer member and the lower end to engage a lower external profile on the inner member and to be wedged therein to create the lock down and the desired preload. A third form utilizes a lower split landing ring, an upper split latching ring and a resilient loading support sleeve therebetween with a wedge on the inner member to set the split latching ring, in place of the single ring of the second form. The third form operates on the same principle as the second form.
Patent CA-2035299-C (CA)
Inventor: KATZ LEWIS J
IPC: G01V1/28
Filed: 1991-01-30
Granted: 1995-11-14
Abstract: A method for producing inverse vertical seismic profile using a seismic source place down a borehole has been invented.  The directly transmitted waves from the seismic source and the secondary reflectances thereof are detected by a sensor(s) on the earth's surface.  The method depends only on knowing the relative arrival times at the sensor of the direct waves and the secondary reflectance waves.  A pseudo-reflection seismogram is produced by 1) Autocorrelating a recording of a long series of random pulses, such as those produced by a drill bit, to produce a one-sided autocorrelation function containing peaks corresponding to the direct waves, primary and secondary reflectances;  2) Stacking (adding the amplitudes for equivalent time points) a plurality of autocorrelation functions obtained at a single depth in the borehole to reduce noise; 3) Producing a series of stacked one-sided autocorrelation functions for different depths in the borehole to yield an IVSP; and 4) Vertically stacking together the one-sided autocorrelation functions from the series of recordings to remove peaks due to primary reflectances. The invented method also provides means to derive the interval velocities for individual geologic strata and to determine the position of the source relative to the IVSP and to a geologic horizon.  The IVSP, source positions, and interval velocities can be determined at the well site in approximately real time.  A single, one-component seismic sensor is sufficient for the recordings required to produce the IVSP.  Either polycrystalline diamond bits or tricone bits may be used as seismic sources.  However, the method is not limited to continuous randomly generated seismic sources and may also be used with periodic or impulsive sources.
Patent CA-2039173-C (CA)
Title: Factor ix chromogenic assay
Inventor: HEMKER HENDRIK C
IPC: C12Q1/56
Filed: 1990-08-16
Granted: 1997-04-01
Abstract: A chromogenic assay for determination of blood coagulation Factor IX (christmas factor) utilizes Factor Xa formed by the conversion of Factor X by activated Factor IX to cleave a chromogenic substrate. Conversion of Factor X to Factor Xa is coupled to a Factor XI mediated conversion to Factor IXa in substantially two step procedure.
Patent CA-2041330-C (CA)
Title: Percutaneously absorbable eperisone or tolperisone preparation
Inventor: AZUMA MASATO
IPC: A61K9/00
Filed: 1991-04-26
Granted: 1996-05-28
Abstract: A pharmacological composition for percutaneous administration  to  human  patients  is  disclosed  which comprises a pharmacologically effective amount of eperisone or a salt thereof, or tolperisone or a salt thereof, a water-swellable cross-linked polyvinylpyrrolidone and a base  carrier.     The  composition  exhibits   improved percutaneous absorption.
Patent CA-2041559-C (CA)
Title: Copolymers of vinylidene fluoride and hexafluoropropylene and process for preparing the same
Inventor: BARBER LEONARD A
IPC: C08F259/08
Filed: 1991-04-30
Granted: 1997-10-14
Abstract: Melt processable copolymers of vinylidene fluoride and hexafluoropropylene, containing from about 1% to about 20% hexafluoropropylene by weight, are prepared by emulsion polymerization of vinylidene fluoride and hexafluoropropylene in a stirred aqueous reaction medium.  The reaction medium is formed by charging to a heated reactor, water, vinylidene fluoride, an initiator to start the polymerization, and a water-soluble surfactant capable of emulsifying both the initiator and the reaction mass during polymerization. Additional  amounts of  vinylidene  fluoride  and initiator  are  fed  to  the  reaction  medium  to  continue polymerization of the vinylidene  fluoride monomer until from abut 50%  to abut  90%  of the total weight of the vinylidene fluoride monomer utilized in the process has been added to the reaction medium.  There is then added to the reaction medium (i)  from about 1% to about 20% hexafluoropropylene by weight, based upon the combined weight of the hexafluoropropylene and the total weight of the vinylidene fluoride utilized in the process, and (ii) the balance of the vinylidene fluoride utilized in the process. The resulting vinylidene fluoride/hexafluoropropylene copolymers are characterized by improved mechanical properties and a DSC melting point typically in the range of from about 160°C to about 170°C, preferably from about 163°C to about 168°C.
Patent CA-2044043-C (CA)
Title: Process for the production of rapidly disintegrating sheet-like presentations
Inventor: HORSTMANN MICHAEL
IPC: A61K9/10
Filed: 1991-06-06
Granted: 1998-04-28
Abstract: A presentation which, in the form of a film, permits the individual dosage of drugs, confectionary, other food, cosmetics and the like for oral application or intake. The presentation is characterized by the fact that it comprises a mass of 20 to 60%-wt. of at least a film former, 2 to 40X-wt. of at least a gel former, 0.1 to 35%-wt. of at least an active substance, and up to 40%-wt. of an inert filling agent, being applied on a carrier, or by consisting of a mass having the aforementioned composition but is unsupported. In the production thereof, an intimate mixture of said components is prepared, optionally with the addition of up to 30%-wt. of a polar solvent, and processed to form a homogeneous, spreadable or extrudable mass.
Patent CA-2051940-C (CA)
Inventor: BECKINGHAM DARYL
IPC: A46B17/02
Filed: 1991-09-20
Granted: 2002-01-29
Abstract: An auxiliary handle is provided for manual implements like rakes and brooms. The handle has a lateral arm with one end pivotally connected to the implement handle by a clamp and the opposite end connected to an upright second arm, which is in turn pivotally connected to the implement handle by a clamp.  The upright second arm is telescopically adjustable in length to allow the system to be adjusted to suit most any implement configuration and personal stature. The lateral arm is also preferably telescopically adjustable. It carries one or more hand grips.
Patent CA-2054689-C (CA)
Title: An immunoassay method for determining the specificity of binding of a monoclonal antibody to an antigen
Inventor: LING VICTOR
IPC: G01N33/577
Filed: 1990-06-01
Granted: 1999-06-15
Abstract: An immunoassay method for determining the specificity of binding of a monoclonal antibody to an antigen is afforded by comparing the binding of antibody and antigen both with and without the addition of excess epitope specific peptide.
Patent CA-2063879-C (CA)
Title: Positive feedback error diffusion signal processing
Inventor: EDGAR ALBERT D
IPC: H04N1/403
Filed: 1992-03-24
Granted: 1998-05-05
Abstract: A  method  for  processing   signals   to  diffuse quantization  error  spatially  or  temporally.   Positive feedback of the quantization error is used to reduce the relative noise for the low frequencies of the spectrum. According   to   a   preferred   implementation   in   a two-dimensional  spatial  application  involving  a  base pixel and three adjacent orthogonally arranged pixels, error  attributable  to  quantization  at  the base  pixel location  is  provided  as  positive  feedback  for  the quantization of the diagonally adjacent pixel. Offsetting and complementary values of the quantization error are also diffused to the remaining two diagonally positioned pixels.  The composite of the four pixels forms a square with a zero net error diffusion along the horizontal, vertical and diagonal orientations.