baber/WOPTO huggingface dataset:
Patent CA-1338473-C (CA)
Title: Oxadiazolyl-azabicycloheptanes for the treatment of senile dementia
Inventor: BAKER RAYMOND
IPC: A61K31/40
Filed: 1988-09-09
Granted: 1996-07-23
Abstract: Oxadiazoles represented by structural formula I:       (I) or a salt or prodrug thereof;  wherein one of X, Y or Z is an oxygen atom and the other two are nitrogen atoms, and the dotted circle represents aromaticity (two double bonds);       R2 represents a substituent of low lipophilicity;         the broken line represents an optional chemical bond;  and the substituents R3 and R4 may be present at any position, including the point of attachment to the oxadiazole ring, and R3 represents halo, C1-4 alkoxy, carboxy, -NR7R8, C2-4 alkyl, C1-4 alkyl substituted with hydroxy or C1-4 alkoxy, or methyl or hydroxy in the 3-, 4- or 5-position; and R4 represents hydrogen, halo, C1-4 alkoxy, hydroxy, carboxy, -NR7R8, C1-4 alkyl, or C1-4 alkyl substituted with hydroxy or C1-4 alkoxy;  or R3 and R4 together represent carbonyl; and R7 and R8 independently represent hydrogen or C1-2 alkyl are potent muscarinic agonists with good CNS penetrability, and are therefore useful in the treatment of neurological and mental illnesses; the compounds are also of benefit in the treatment of severe painful conditions.  Processes for preparing these compounds are described, as also are pharmaceutical compositions containing them.
Patent CA-1333411-C (CA)
Inventor: FANG SHOU-MEAN
IPC: H05B1/02
Filed: 1988-09-29
Granted: 1994-12-06
Abstract: Circuit protection devices which comprise a PTC conduc-tive polymer element and a second electrical component which is thermally coupled to the PTC element and which, when a fault causes the current in the circuit to become excessive, generates heat which is transferred to the PTC element, thus reducing the time taken to "trip" the PTC element.  The second component is for example a voltage-dependent resistor which is connected in series with the PTC element under the fault conditions and is thus protected from damage.          Alternatively, the second component is a thick film resistor which is connected in series with the PTC element.
Patent CA-1313158-C (CA)
Title: Hyperproduction of poly-.beta.-hydroxybutyrate during exponential growthby mutant strains of azotobacter vinelandii
Inventor: PAGE WILLIAM J
IPC: C12P7/62
Filed: 1988-11-07
Granted: 1993-01-26
Abstract: ABSTRACT OF THE DISCLOSURE     A mutant strain of Azotobacter vinelandii exhibits hyper-production of poly-.beta.-hydroxybutyrate during its growth.
Patent CA-1289920-C (CA)
Title: Process and device for aseptically filling a package with a fluid
Inventor: LOELIGER WILLI
IPC: B65B55/02
Filed: 1988-11-17
Granted: 1991-10-01
Abstract: Abstract The invention relates to a process and a device for aseptically filling with a fluid a pack provided with a spout incorporating a tearable outer membrane.    The device comprises a filling head (1), a pack support (11,31) arranged beneath the filling head and designed to seal the pack (7) after filling, the filling head comprising a valve (4) for regulating the fluid delivery rate, a fluid inlet and outlet pipe (3) and, arranged laterally at the bottom of the filling head, a steam inlet valve (5) and a valve (6) with a steam outlet and emptying pipe (30) for cleaning after filling.  The lower part of the valve 4 serves as a closure/opening for the fluid and comprises cutting means (25) for cutting the tearable membrane (9) during opening of said valve.            Figure 2
Patent CA-1300892-C (CA)
Title: Binding additive for explosive compositions
Inventor: WALDOCK KEVIN H
IPC: C06B47/14
Filed: 1988-11-17
Granted: 1992-05-19
Abstract: ABSTRACT  OF  DISCLOSURE            This invention relates to a dry mix explosive composition wherein a binding or holding agent is provided to hold the parts thereof together in a straightforward and efficient manner, in order to avoid segregation of the parts such as during mixing, placement and the like.  The dry mix explosive composition includes oxidiser, fuel and bulking agent, and further includes a binder in the form of a water-in-oil emulsion which acts to hold the parts of said composition together during mixing, placement and the like.
Patent CA-1317460-C (CA)
Inventor: TSUNEISHI KATSUYUKI
IPC: C03B37/027
Filed: 1988-11-22
Granted: 1993-05-11
Abstract: Abstract:    An optical fiber drawing apparatus includes a furnace for fusing a forward end of an optical fiber preform for drawing an optical fiber, and a screening portion for applying tension to the optical fiber in the line for testing its strength.  The screening portion includes a suction device disposed along a span of the optical fiber running through it, for sucking the optical fiber thereinto in the event of a breakage. The arrangement avoids broken optical fiber becoming entangled with other parts of the apparatus and improves productivity.
Patent CA-1310683-C (CA)
Title: Orbital table for machine tools
Inventor: RHOADES LAWRENCE J
IPC: B24B41/06
Filed: 1988-12-02
Granted: 1992-11-24
Abstract: ABSTRACT    An orbital table assembly having a top plate (10) which can be made to orbit or translate in a path without rotating,  and having a fixed base plate (20) under said top plate and a linkage plate (30) between the two other plates, while an orbiting cam (26) secured to the top plate imparts orbital motion thereto.  A first means is provided to secure the linkage plate (30) to the base (20) plate to prevent rotation of the linkage plate while permitting linear lateral movement in one direction only, and a second means is provided secured to secure the top plate (10) to said linkage plate  (30)  to prevent rotation of said top plate while permitting linear lateral movement in a single direction perpendicular to the aforesaid direction.
Patent CA-1309774-C (CA)
Title: Character recognition apparatus
Inventor: LOH SHIU-CHANG
IPC: G06K9/22
Filed: 1988-12-12
Granted: 1992-11-03
Abstract: ABSTRACT           An apparatus and a method for identifying characters is provided, each of the characters being a member of a set and being formed from a number of pre-determined primitives.  The apparatus includes an input device receiving successively each primitive forming a character.  The input device generates input signals for each primitive forming the handwritten character. The input signals are conveyed to a processor.  The processor examines the input signals and attempts to identify each of the primitives used to form the handwritten character. A primitive code is generated for each identified primitive and an unidentified primitive code is generated for each unidentified primitive.  The primitive and unidentified primitive codes are combined to form an input character code.  A memory is provided and stores a character code and an international output code for each of the characters in the set of characters.  A comparator compares the input character code generated for the handwritten character with each of the character codes stored in the memory.  When the input character code is equivalent to a character code associated with only one output code, the output code is conveyed to an output device such as a printer wherein a reproduction of the handwritten character is formed. When the character code is equivalent to a character code associated with more than one output code, a differentiator detects the correct output code associated with the input character code so that the handwritten character can be reproduced.
Patent CA-1326636-C (CA)
Inventor: RHEINLAENDER HEINZ G M
IPC: E04B9/00
Filed: 1988-12-12
Granted: 1994-02-01
Abstract: SOUND-ABSORBING COVER ELEMENT AS A COMPONENT         IN A GAP-FREE ACOUSTIC COVER                 ABSTRACT OF THE DISCLOSURE        A sound-absorbing cover  element  for  use  as  a component  in  a  gap-free  acoustic  cover  including a perforated plate (22) covered  on  its  side  facing  an enclosed  space  with  a  layer  (24)  of nonwoven fiber material which covers the perforations.   The  plate  is lined  on  its side facing away from the enclosed space with a sound-inhibiting layer (28) covered on  its  side facing  away from the perforated plate (22) with a cover film (30) which is impermeable to air.
Patent CA-1339002-C (CA)
Title: Liquid crystal compound
Inventor: KITANO KISEI
IPC: C09K19/30
Filed: 1989-02-16
Granted: 1997-03-18
Abstract: A liquid crystalline compound useful as a component of liquid crystal compositions for TN mode display elements and having a large positive .DELTA..epsilon. value and also a low viscosity for the .DELTA..epsilon. value and a liquid crystal composition containing the compound are provided, which compound is expressed by the formula   wherein n represents an integer of 0 to 20.
Patent CA-1306061-C (CA)
Title: Circuit implementation of block matching algorithm
Inventor: WU LANCELOT
IPC: H04N7/26
Filed: 1989-03-13
Granted: 1992-08-04
Abstract: Abstract of the Disclosure A circuit for implementing a full search block matching algorithm for coding video signals sequentially receives pixel values from a block of pixels in a current video frame and sequentially receives pixel values from a search area of a previous video frame. The circuit includes a plurality of processors for calculating in parallel a group of error functions corresponding to a group of positions of the block in the search area. The error functions are compared for determining the block position having the minimum error function.
Patent CA-1341504-C (CA)
Inventor: TANAKA ATSUKO
IPC: C01F17/00
Filed: 1989-03-22
Granted: 2006-04-11
Abstract: A metal oxide material is provided which is represented by the compositional formula: Bi2(Sr1-xCax)3+nCu2+nO(12+3n)- delta wherein 0 < x < 1, 0 < n </= 10, and 0 <  delta . The metal oxide may be represented by the compositional formula: (Bi1-xA<I>x)2(SryCa 1-y-z-A<II>z)p (Cu1-rA<III>r)qO delta wherein 0 </= x </= 0.5, 0.3 </= y </= 0.7, 0 </= z </= 0.5, 0 </= r </= 0.1, 1 < Y+z, 2 </= p </= 11, 1 </= q </= 10 and 5.4 </=  delta  </= 24; A<I>is an element selected from Groups IIIb, IVb and Vb; A<II> is an element selected from Groups Ia, IIa and IVb; and A<III> is an element selected from Groups IVa, Va, VIa and VIII. The metal oxide may further comprise an element selected from lanthanoids and yttrium. The metal oxide material shows superconductivity at a temperature not lower than the boiling point of liquid helium.
Patent CA-1310360-C (CA)
Title: Battery terminal locking assembly
Inventor: ANDERSON RONALD C
IPC: H01M50/179
Filed: 1989-04-24
Granted: 1992-11-17
Abstract: ABSTRACT OF THE INVENTION     An assembly for preventing a battery terminal from rotating with respect to a battery container.  The assembly is comprised of a collar having an aperture therethrough and a washer having an aperture therethrough which has a configuration substantially similar to the cross sectional configuration of a threaded portion of the terminal.  The annular collar defines two faces having separate sockets formed therein.  At least one nut is mated with the threaded portion of the terminal to releasably secure the washer within the socket formed in one face of the collar.  The collar and washer cooperate to maintain the terminal and the container in a set position.
Patent CA-1297798-C (CA)
Title: Turbine shaft axial load protection system
Inventor: PANKOWIECKI JOSEPH
IPC: F01D3/00
Filed: 1989-04-24
Granted: 1992-03-24
Abstract: 12                    54,379 ABSTRACT OF THE DISCLOSURE An  axial  thrust  limiting  system  for  a  steam turbine  including  a  rotor having a  shaft,  the turbine containing a plurality of chambers each defining a pressure zone containing a  fluid which,  during operation of the turbine, is  t a pressure which influences the axial thrust load on the shaft, the turbine being constructed such that at least during rapid shut down a pressure differential can develop between two of the chambers to create an excessive axial thrust load on the shaft.  The axial thrust limiting system includes controllable valves connected in a fluid flow path between the two chambers,  and valve operating components connected for operating the valves during rapid shut down of the turbine in order to reduce the pressure differential between the two chambers.
Patent CA-1300221-C (CA)
Title: Variable attenuator having voltage variable fet resistor with chosen resistance-voltage relationship
Inventor: MAOZ BARAK
IPC: H03H11/24
Filed: 1989-05-09
Granted: 1992-05-05
Abstract: ABSTRACT A variable attenuator having first and second branch circuits configured in bridged T, T or PI topologies, each of the branch circuits having at least one voltage variable FET resistor.  The voltage variable FET resistor includes a FET network comprising a plurality of FET segments each of which have a predetermined gate width and a voltage divider network including a plurality of fixed resistors coupled to the gates of the plurality of FET segments for providing a different predetermined gate voltage to each of the FET segments.  The gate width of each of the FET segments and the resistance of each of the fixed resistors is chosen to provide a predetermined relationship between the control voltage and the channel resistance of the voltage variable FET resistor, to thereby provide a preselected relationship between the control voltage applied to the first branch circuit and the attenuation ratio of the attenuator.
Patent CA-1325642-C (CA)
Inventor: EBERLE HANS-JURGEN
IPC: C07C6/06
Filed: 1989-05-12
Granted: 1993-12-28
Abstract: PROCESS FOR THE PREPARATION OF CYCLOALKADIENES ABSTRACT OF THE DISCLOSURE A process for the preparation of cycloalkadienes in a liquid phase, by a metathesis reaction, is disclosed. The reaction takes place in the presence of a supported catalyst based on R?2O1/Al2O3, which includes bringing a cyclopolyoctenylene, or a cycloalkamonoene/cyclopolyoctenylene mixture cyclopolyoctenylene having a polymerization degree of at least three, in the form of a 0.005 - 0.2 molar solution at a residence time of 10 - 600 seconds, into contact with the supported catalyst.
Patent CA-1331491-C (CA)
Inventor: OSBORNE ROBERT L
IPC: F01D25/16
Filed: 1989-05-16
Granted: 1994-08-16
Abstract: ABSTRACT OF THE DISCLOSURE A shrouded turbine blade vibration monitoring system is comprised of a plurality of sensors for sensing a profile of a turbine blade row.  A microprocessor compares the sensed profile to an expected profile of the turbine blade row to detect motion of the turbine blades due to vibration.  The microprocessor then generates an operator alarm and trips the turbine in response to the detection of unacceptable vibration of the turbine blades.
Patent CA-1328952-C (CA)
Title: Absorbent articles with multiple layer absorbent cores
Inventor: REISING GEORGE S
IPC: A61F13/49
Filed: 1989-05-23
Granted: 1994-05-03
Abstract: ABSORBENT ARTICLES WITH MULTIPLE LAYER ABSORBENT CORE           ABSTRACT    Absorbent articles such as disposable diapers, incontinent pads, sanitary napkins and the like that have multiple layer absorbent cores that are suitable for acquiring and containing liquids in an especially effective and efficient manner.  The absorbent core comprises multiple layers including a first layer comprising hydrophilic fibrous material and having an acquisition zone of a relatively lower average density than the other portions of the first layer so that it quickly acquires discharged liquids  a liquid handling layer comprising a resilient material that is moisture insensitive so as to rapidly acquire liquid into itself through the acquisition zone and distribute the liquid throughout the liquid handling layer to a storage layer and the first layer: and a storage layer comprising a combination of fibrous material and discrete particles of absorbent gelling material that contains and stores the liquids deposited onto the absorbent core and allows the liquid handling layer to be "drained" of the liquids it has acquired so that the liquid handling layer may have sufficient capacity to acquire and distribute subsequent loadings of liquids.
Patent CA-1337129-C (CA)
Title: Projectile board
Inventor: BARKLEY RICHARD DOUGLAS
IPC: A63F9/02
Filed: 1989-06-28
Granted: 1995-09-26
Abstract: There is described a new and improved dart board comprising a generally flat target surface, a two-dimensional pattern  of  figures  supported  on  the  surface,  the  pattern emulating the holes of a golf course.
Patent CA-1336497-C (CA)
Title: Immunoconjugates for cancer diagnosis and therapy
Inventor: ROSENBLUM MICHAEL G
IPC: A61K47/48
Filed: 1989-07-06
Granted: 1995-08-01
Abstract: Immunoconjugates of an antibody to a 22 KD breast tumor associated antigen were prepared.  Cytotoxic immunoconjugates such as gelonin-15A8 antibody conjugate are useful for treating proliferative cell diseases such as breast carcinoma and cervical carcinoma as well as other tumors which bear the 15A8 antigen.  Detectably labeled compositions for diagnosis of such diseases are also disclosed.
Patent CA-1294532-C (CA)
Title: Pulsating combustion system and method of starting the system
Inventor: SAITO KAZUO
IPC: F23C6/02
Filed: 1989-07-28
Granted: 1992-01-21
Abstract: Abstract of the Disclosure A pulsating combustion system comprising a pair of pulsating combustors of the same structure connected in parallel between an air-intake chamber and an exhaust chamber and having an air-intake pipe and an aerodynamic valve fitted within the air-intake pipe.  A separation valve is located in said air-intake chamber, for partitioning the air-intake chamber into a sub-chamber communicating with the air-intake pipe of the first pulsating combustor and a sub-chamber communicating with the air-intake pipe of the second pulsating combustor. In operation, the separation valve partitions the air-intake chamber into two sub-chambers, and the pulsating combustors are operated independently of each other for some time.  When the pulsating combustion performed by either pulsating combustor becomes sufficiently stable, the separation valve is gradually opened, thus connect-ing said pulsating combustors.  Thereafter, both com-bustors continue to perform stable pulsating combustions, perfectly out of phase.
Patent CA-1330265-C (CA)
Inventor: WHITE CRAIG W
IPC: G01P21/00
Filed: 1989-08-21
Granted: 1994-06-21
Abstract: ABSTRACT           An acceleration sensor having a sensing mass supported relative to a frame by a plurality of beams having a plurality of resistors integral therewith.  The resistance of the beam resistors varies as the sensing mass is displaced relative to the frame in response to acceleration  of  the  frame  in  a  direction  generally normal to the plane of beam extension.  The displacement of the sensing mass due to such acceleration produces a corresponding  change  in  the  output  of  a Wheatstone bridge incorporating the beam resistors  in the  legs thereof.   At least one leg of the bridge additionally has a resistor of variable resistance in series with the beam  resistor  thereof,  the  resistance  of  which  is controlled  by  a  microprocessor,  whereby  the  bridge output is adjusted to compensate for temperature effects and  manufacturing  tolerances.    The  output  of  the electrical  control  circuit  for  the  sensor  is periodically calibrated by electrostatically deflecting the  sensing mass relative  to the frame, whereby the sensing mass is subjected to the equivalent of a known accelerating field, and using the resultant change in bridge output as a reference value for calibrating the instantaneous changes in bridge output resulting from the acceleration of the sensor frame.
Patent CA-1339632-C (CA)
Inventor: PAYNE ROBERT A
IPC: A23G4/14
Filed: 1989-09-22
Granted: 1998-01-20
Abstract: The present invention is an improved method for producing an aqueous solution of zein.  In accordance with this method, the water to be used has its pH adjusted to an intermediate pH between about 8.0 and about 10.5.  Following this adjustment, a quantity of powdered zein is added to the water in an amount between about 5 and about 20 percent by weight of the water and zein mixture.  This mixture is agitated until the zein is well dispersed in the water.  Also, during the zein addition, the pH is readjusted to the 8.0 to 10.5 range.  After the zein is well dispersed, the pH of the mixture is adjusted to a final pH between about 11.5 and about 12.1.  Agitation of the mixture is continuted until substantially all of the zein is solvated in the water.
Patent CA-1293153-C (CA)
Inventor: DANBY HAL C
IPC: A61M5/14
Filed: 1989-09-25
Granted: 1991-12-17
Abstract: ABSTRACT OF THE DISCLOSURE A diaphragm pump cassette for use with a pumping mechanism.   The cassette comprises a pumping chamber and a check valve  assembly communicating with the pumping chamber.  The check valve assembly includes a first check valve and a second check valve.    Each check valve includes a valve seat,   flexible valve diaphragm and a movable valve seating mechanism for locating the diaphragm on the valve seat.   The valve diaphragms are unseated with respect to the valve seat  prior  to  mounting  the  pump  cassette  on  the pumping  mechanism  whereby  fluid  may  flow  freely through the check valve.  The valve seating mechanism of  the  first  check  valve  includes  a  further mechanism,  independent of the pumping mechanism, for manually opening and closing the first check valve.
Patent CA-1308987-C (CA)
Title: Aspirator device for body fluids
Inventor: MAITZ CARLOS A
IPC: A61M1/00
Filed: 1989-09-27
Granted: 1992-10-20
Abstract: Abstract of the Disclosure An aspirator device for removing body fluids is disclosed as having a fluid collector with an air-type chamber that communicates with a first sealed passageway in an elongated flexible tube to be inserted in a body cavity for fluid communication with body fluids, and a second sealed passageway which connects the air tight chamber with a manually operable vacuum device or squeeze bulb.  The manually operable vacuum means or squeeze bulb is operatively associated with first and second one-way valve which open in the same direction, the first valve establishing a vacuum in the first and second sealed passageways for removing and depositing harmful body fluids in the fluid collector, and the second valve means not only working to establish the vacuum, but also serving as an overflow valve for fluids overflowing the fluid collector.  The manually operable vacuum device or squeeze bulb is also supported in a relatively stable and rigid position relative to the fluid collector to facilitate one-handed gripping and operation thereof by a user.
Patent DK-150737-C (DK)
Inventor: JOERGENSEN-BECK FRODE
IPC: B65D5/02
Filed: 1984-09-14
Granted: 1988-02-01
Abstract: For manual packing of various objects is used a box member which is erected to form a rectangular tube having at both ends four closing flaps, of which first two side flaps (2) are folded in for closing the box end, whereafter a third flap (4) and finally a fourth flap (6) are folded in, the fourth flap (6) being glued to the outside of the third flap (4). The folding in and the glueing of the third and fourth flap may be effected by a simple apparatus, which, however, requires the two side flaps (2) to be entirely folded in. In practice it has been necessary, therefore, to manually hold and guide the boxes during their introduction into the closing apparatus. The invention provides for a special corner connection (8) between the respective two side flaps and the said third flap, whereby the third flap (4) will act as an arresting member for the folded in side flaps (2), such that these flaps are prevented from leaving their folded in positions, while the third flap (4), upon a temporary outward folding during the folding in of the side flaps (2), will reassume its normal position for final closing in the closing apparatus.