baber/WOPTO huggingface dataset:
Patent CA-1291682-C (CA)
Title: Polymeric shutter assembly
Inventor: HARVEY WILLIAM O
IPC: B60K11/08
Filed: 1987-10-21
Granted: 1991-11-05
Abstract: POLYMERIC SHUTTER ASSEMBLY                 ABSTRACT OF THE DISCLOSURE         There is disclosed a vehicle engine shutter assembly, basically of polymeric material forming a peripheral frame; a plurality of vertical vanes which are rotatable on vertical axes between an open condition and a closed overlapping condition by a horizontally slidable actuator bar which has curvilinear recesses receiving curved lobes on the vane axles.  The closed vanes preferably have notched, interfitting leading edges and trailing edges that interfit to form said traps to abate engine noise.  The vanes and actuator bar are retained in position on the frame by a lock bar that has resilient legs that snap in place.
Patent CA-1324539-C (CA)
Inventor: TANIGUCHI TAKASHI
IPC: C08J7/044
Filed: 1987-10-27
Granted: 1993-11-23
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed is an anti-reflection optical article which has an excellent anti-reflection property, scratch resistance, impact resistance, flexibility, anti-static property and weatherability, and which is easy to dye.          The anti-reflection optical article of the present invention comprises a transparent plastic substrate; a hard coat film formed on a surface of the substrate, the film having an index of refraction of not less than 1.52; and a fluorine-containing organopolysiloxane-based film with a thickness of 10 nm to 500 nm, which has an index of refraction lower than that of the hard coat film by not less than 0.02, and which is formed on the hard coat film.
Patent CA-1314924-C (CA)
Title: Method and apparatus for detecting back corona in an electrostatic filter with ordinary or intermittent dc-voltage supply
Inventor: REYES VICTOR
IPC: B03C3/72
Filed: 1987-11-06
Granted: 1993-03-23
Abstract: Abstract In an electrostatic precipitator for cleansing flue gases from industrial plants, comprising one or more precipitator sections powered from separate continuous or intermittent DC-voltage electric supplies, a method and apparatus for detecting back corona, i.e. discharges in the dust layer precipitated on the collecting electrodes of an emission electrode system during the cleansing process, by making periodic upward adjustment of the precipitator current for each DC-voltage supply until spark-over occurs, and where after spark-over or a blocking of the precipitator current for a predetermined period of time if no spark-over occurs, the minimum value of the precipitator voltage is compared with the minimum value before the spark-over or before the blocking period, the latter minimum value being corrected by means of a predetermined sensitivity factor.  In this way a measurement may be made for each single spark-over so that the reducing effect of the spark-over on the degree of purification may be avoided at the next spark-over.
Patent CA-1275435-C (CA)
Title: D. c. solenoid control circuit
Inventor: VERBOS STEPHEN P
IPC: F16D65/14
Filed: 1988-01-12
Granted: 1990-10-23
Abstract: D.C. SOLENOID CONTROL CIRCUIT                 ABSTRACT OF THE DISCLOSURE         A D.C. solenoid control circuit for use in mechanisms driven by an A.C. motor.  A rectifier converts A.C. current to D.C. current and provides an A.C. current flow path and a D.C. current flow path.  Only the motor is connected in the A.C. current flow path to an output electrical power source.  The D.C. solenoid is connected through the rectifier in the D.C. current flow path.  The D.C. solenoid winding drives an actuator within the solenoid to activate the separate mechanism.  In-rush current drawn by the motor upon start-up is converted to a high current level by the rectifier and input to the winding of the solenoid causing its immediate energization and, upon de-activation, its fast release.
Patent CA-1316887-C (CA)
Title: Jaw crusher with drop-in jaws
Inventor: TURLEY LAURENCE U
IPC: B02C1/06
Filed: 1988-03-31
Granted: 1993-04-27
Abstract: Abstract The application relates to rock crushing machines and more particularly  to  such  machines  wherein  oscillatory  vibration  or motion is produced in opposed jaws by means of eccentric masses or the  like.   It  has  been  found  that  assembly  and  disassembly  is relatively difficult for such crushers with opposed jaws.  This is most noticeable in connection with the jaws themselves which tend to experience substantial wear during operation of the crusher and must accordingly  be  replaced  or  rebuilt  relatively  frequently.   The improved  design  of  this  application  includes  upper  and  lower elongated  resilient  members  connected  with  the  frame  structure behind one jaw, and upper and lower reaction members connected to the one jaw for respective interaction with the upper and  lower elongated resilient members.  The upper and lower reaction members are  formed  in  substantially  diametric  relation  for  encompassing diametrically  opposed  portions  of the  upper and  lower elongated resilient members in order to permit oscillatory movement of the one jaw  in  response  to the  eccentric means  while  at  the  same  time limiting  travel  of  the  one  jaw in all  directions  on  the  frame structure.
Patent CA-1304521-C (CA)
Title: Self-identifying scheme for memory
Inventor: MOHME RODGER
IPC: G06F12/06
Filed: 1988-04-08
Granted: 1992-06-30
Abstract: ABSTRACT OF THE DISCLOSURE    A self-identifying scheme which permits a variety of integrated circuit semiconductor memory modules to inform a host processor as to each individual memory accessing time.  Pre-encoded circuits within each memory module generate a coded signal when that module is selected by the host processor.  The coded signal identifies the type of memory accessed, permitting the host processor to transfer information at a rate determined by the memory accessed.
Patent CA-1320934-C (CA)
Title: Gas dissolving method
Inventor: FITZPATRICK NICHOLAS B
IPC: B67C3/10
Filed: 1988-04-15
Granted: 1993-08-03
Abstract: GAS DISSOLVING METHOD             In a method of charging a flexible container such as a can with non-carbonated liquid, inert gas comprising argon is dissolved in the liquid preferably using a bowl filler to the head space of which nitrogen or argon is supplied.  A closure is then fitted gas-tight to the container.  The concentration of dissolved gas in the liquid and the volume occupied by the head space of the charged container are so selected that on equilibration there is a super-atmospheric gas pressure in the head space of the container.  The method enables thin-walled cans to be employed.
Patent CA-1307999-C (CA)
Title: Cutter link for saw chain having guide surface for sharpening
Inventor: PETROVICH MICHAEL V
IPC: B23D63/16
Filed: 1988-05-10
Granted: 1992-09-29
Abstract: Abstract of the Disclosure A cutting link having a cutter portion and a depth gauge.         And a guide edge extending between the depth gauge peak and cutter portion for guiding a file to sharpen the cutting edge of the cutter portion.  In the process of sharpening the cutting edge, the cutter portion is abraded away along a line that furthers the guide edge and thereby continues the guiding of the file to properly file the cutting edge.
Patent CA-1307320-C (CA)
Title: Acidic gas sensors
Inventor: PLETCHER DEREK
IPC: G01N33/00
Filed: 1988-05-26
Granted: 1992-09-08
Abstract: ABSTRACT                         Acidic Gas Sensors The present invention provides a sensor, preferably an electrochemical sensor, for detecting acidic gases, e.g. carbon dioxide. The electrochemical sensor has a sensing electrode (20, 22), a counter electrode (37) and a body of electrolyte containing a complex, e.g. copper(II) bis(propanediamine), which has one or more ligands that is displaceable by the presence of the acidic gas in the electrolyte to form a modified complex which can be electrochemically reacted at the sensing electrode at a potential at which the unmodified complex is unreactive. The acidic gas diffuses into the electrolyte through a porous membrane. The modified complex can also be detected colorimetrically because it absorbs light at a different wavelength to the unmodified complex.
Patent CA-1310907-C (CA)
Inventor: COZZI PAOLO
IPC: A61P15/00
Filed: 1988-06-02
Granted: 1992-12-01
Abstract: A B S T R A C T            N-Imidazolyl Derivatives of Bicyclic Compounds useful in medicine.            The invention relates to the use of a compound of formula (I)   (I) wherein (a)    is       wherein Y completes a single bond or is oxygen or a -CH2- group and the symbol   represents a single or a double bond or (b)   is    and the symbol   represents a double bond; one of R1, R2, R3 and R4 is -CH2OH, C2-C4 acyl,     ,  -COOR7, -CH2-COOR7,     , -CH-?-COOR? or      in which each of R7, R? and R9 is independently hydrogen or C1-C4 alkyl and the others are independently chosen from hydrogen, hydroxy, halogen, C1-C4 alkyl, C1-C4 alkoxy and -COOR7 wherein R7 is as defined above, and one of R5 and R6 is hydeogen and the other is hydrogen, C1-C6 alkyl or phenyl; or a pharmaceutically acceptable salt thereof, in the preparation of a medicament for use in the treatment of nephropathies.
Patent CA-1328326-C (CA)
Inventor: MACLEAY RONALD E
IPC: C08F8/30
Filed: 1988-06-07
Granted: 1994-04-05
Abstract: ABSTRACT     Polymer bound antioxidants are provided in which the antioxidant stabilizer groups are chemically bound to polymers or copolymers by an acylaminoimide or diacylhydrazide function.  The polymer bound antioxidants are prepared by reacting hydrazido substituted antioxidants with some or all of the anhydride groups of anhydride containing polymers or copolymers.  The concentration of the stabilizers bound to the polymer may be readily varied depending upon the particular end-use of said polymer.  Polymer with high concentrations of bound antioxidants can be used as masterbatches to stabilize other polymer systems.
Patent CA-1304676-C (CA)
Title: Process for selective placement of polymer gels for profile control in thermal recovery
Inventor: SHU PAUL
IPC: C09K8/512
Filed: 1988-06-21
Granted: 1992-07-07
Abstract: PROCESS FOR SELECTIVE PLACEMENT OF POLYMER GELS              FOR PROFILE CONTROL IN THERMAL OIL RECOVERY     ABSTRACT:        Highly permeable thermally fluid swept zones in an oil containing formation are selectively plugged by a high temperature selective gel-forming solution without plugging the less permeable unswept portion of the formation.  Ungelled solution in the less permeable unswept portion of the formation in the vicinity of the injection well is removed and a thermal fluid is injected into the formation that sweeps oil from the less permeable, unswept portion of the formation, thereby resulting in more complete displacement of oil from the formation.
Patent CA-1297402-C (CA)
Title: Microbicidal microemulsion
Inventor: MATTOX JOHN R
IPC: A01N43/80
Filed: 1988-07-27
Granted: 1992-03-17
Abstract: PATENT APPLICATION         OF                      John R. Mattox for MICROBICIDAL MICROEMULSION              DN87-16A                 TPS/sjv Abstract of the Disclosure Disclosed are dilutable oil-in-water microemulsions of low water soluble microbicidal isothiazolones and their method of preparation.
Patent CA-1288012-C (CA)
Title: High efficiency rotary steam engine
Inventor: EDLING JACK V
IPC: F01C1/356
Filed: 1988-09-30
Granted: 1991-08-27
Abstract: ABSTRACT OF THE DISCLOSURE        A steam engine of the rotary type including a housing with two annular chambers with each chamber having a piston assembly operable therein.  The piston assemblies are carried by a common shaft and displaced 90 degrees apart.  Each piston assembly includes two pistons.  The pistons have their working end surfaces 180 degrees of rotation apart. The rotor shaft is hollow along a portion of its length.  The hollow portion of the shaft delivers fluid under pressure from an external source through channels within the pistons to fluid troughs in the circumferential surfaces of  the annular chambers.          Additional channels in the annular chambers and housing provide fluid under pressure to actuate shuttle valves at specific rotation locations of the pistons in each chamber.  Each chamber includes side wall vents for exhausting spent working fluid.  A screen is positioned vertically between the adjacent vents to cause condensate to be directed to a collection sump by gravity.
Patent CA-1330843-C (CA)
Title: Elastomeric composition having increased ozone resistance
Inventor: CESARE FRANK C
IPC: C08L83/04
Filed: 1988-10-14
Granted: 1994-07-19
Abstract: ABSTRACT OF THE INVENTION    An elastomeric composition, formed by curing a blend comprised of: (A) between about 83 and About 94 phr of a highly unsaturated rubber; (B) between about 3 and about 27 phr of ethylene/propylene/nonconjugated diene terpolymer having a number average molecular weight of more than about 35,000; (C) between about 3 and about 27 phr of ethylene/propylene/nonconjugated diene terpolymer having a number average molecular weight of between about 500 and about 15,000; between about 2 and about 7.5 phr of a quinoline antioxidant; and (D) an effective amount of curative; exhibit unexpectedly desirable ozone resistance.  Also disclosed is a process for preparing such elastomeric compositions.
Patent CA-1341204-C (CA)
Title: Analogues of igf-1 and igf-2
Inventor: BALLARD FRANCIS JOHN
IPC: A61P17/00
Filed: 1988-12-21
Granted: 2001-03-13
Abstract: A peptide analogue of insulin-like growth factor-1 (IGF-1) or factor-2 (IGF-2) wherein at least the glutamic acid residue is absent at position 3 from the N-terminal of IGF-1 or at position 5 or 6 from the N-terminal of IGF-2.
Patent CA-1335849-C (CA)
Inventor: YAMAWAKI TAKASHI
IPC: B32B27/32
Filed: 1988-12-28
Granted: 1995-06-06
Abstract: The present invention provides a butene-1 polymer film which comprises a composition comprising 100 parts by weight of a butene-1 polymer having a melt index of 0.1-20 g/10 min, a ratio of weight-average molecular weight/number-average molecular weight of 3-12 and having a maximum melting point of 60-140°C measured by differential scanning calorimetric analysis method and 200 parts by weight or less of an olefin polymer and which has a tensile modulus of 500-8,000 kg/cm2, a tear strength in TD or MD of 10 kg/cm or less and a ratio of tear strength in MD and tear strength in TD (MD/TD or TD/MD) of 4 or more.   The present invention further provides a laminated film comprising the above butene-1 polymer film and a polyolefin resin layer laminated on at least one surface of the butene-1 polymer film.
Patent CA-1313251-C (CA)
Title: Scanning sonar system
Inventor: BAKER WILLIAM
IPC: G01S7/53
Filed: 1989-01-04
Granted: 1993-01-26
Abstract: SCANNING SONAR SYSTEM               ABSTRACT OF THE DISCLOSURE               Images of underwater features, animate and inanimate, are produced from substantial distances in any direction around a boat, using small and easily mountable sonar devices, including three sonar transducers, two being stationary and the third being directable, the transducers being operable at various ultrasonic frequencies.  Under keyboard control and using completely integrated electronic circuitry, images and echo sounding reports are generated on a graphic video display.  The images include a sector-shaped image from a sector scan which covers a selected range of azimuth angles at a selected down angle.
Patent CA-1297849-C (CA)
Title: Adjustable base for ladders and like objects
Inventor: WAERNELOEV JOHNNY
IPC: E06C7/44
Filed: 1989-01-17
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE:          The present disclosure describes an adjustable base assembly for supporting a ladder for compensating for an uneven foundation surface or to enable the ladder to be inclined at a desired angle.  The assembly comprises an attachment structure  including an upper,  transversely extending bar which carries a holder for embracing and securing the sidepieces of the ladder, the bar being firmly connected via a spacer device.  The spacer device presents an upper,  transversely extending U-shaped strut which embraces an arcuate part and which can be clamped firmly to the arcuate part.   The assembly also comprises a U-shaped strut extending across the arcuate part in a chordal manner. The strut can be clamped with a friction-locking action against the arcuate part with the aid of a clamping device which extends centrally through the U-shaped strut and which can be screwed into the spacer device.
Patent CA-1331961-C (CA)
Title: Opener for packages
Inventor: JOHNSON BARBARA J
IPC: B65D17/52
Filed: 1989-02-02
Granted: 1994-09-13
Abstract: Abstract Opener for packages A means which aids in the opening of a flexible package comprising a tab made of a resilient material integral with or secured to the package, lines of weakening de-fining a cutter capable of piercing the lidding material of the package, said lines of weakening capable of being bent, broken or torn by finger pressure on the tab to expose or make effective the cutting edge of the cutter.
Patent CA-1316778-C (CA)
Title: Air speed control valve air pressure drive hydraulic fluid pump
Inventor: DECKER ARNOLD F
IPC: F04B9/115
Filed: 1989-02-16
Granted: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE               An air operated hydraulic fluid pump having an air pressure operated motor drivingly connected to a hydraulic fluid pump to drive the hydraulic fluid pump, and an airflow control valve controlling the supply of air from an air pressure source to the air pressure operated motor, the airflow control valve causing an increase in the supply of air to the air pressure operated motor in proportion to increase in the hydraulic fluid pressure generated by the hydraulic fluid pump.
Patent CA-1340537-C (CA)
Inventor: SCHMITT-WILLICH HERIBERT
IPC: C07K17/08
Filed: 1989-02-28
Granted: 1999-05-11
Abstract: Polymers consisting of a ligand containing a carboxylic acid group, optionally at least one ion of an element of the atomic numbers 21-29, 42, 44 or 57-83 as well as optionally cations of inorganic and/or organic bases, amino acids or amino acid amides are valuable completing agents and complexes for diagnosis.
Patent CA-1313631-C (CA)
Title: Hydraulically actuated release mechanism for a clutch
Inventor: FLOTOW RICHARD A
IPC: F16D25/08
Filed: 1989-03-31
Granted: 1993-02-16
Abstract: ABSTRACT OF THE DISCLOSURE A release mechanism for a clutch having an axially movable release sleeve is disclosed.  A pressure ring is mounted about the release sleeve by a bearing.  When the pressure ring is moved toward a disengaged position, it moves the release sleeve in the same direction. A piston housing is mounted about an inner flange formed on a cover of the clutch by a bearing.  The piston housing is disposed adjacent to the pressure ring and includes an annular groove formed therein which extends away from the pressure ring.  An annular piston is disposed within the groove, defining a chamber within the piston housing.  An external port provides communication between the chamber and a source of pressurized fluid for selectively moving the piston axially outwardly into engagement with the pressure ring.  When so actuated, the pressure ring is moved axially outwardly, causing the release sleeve to be moved to the disengaged position.  A hollow pressure ring cover is attached about the pressure ring having circumferential flat portions formed thereon.  One of the flat portions abuts the adjacent axially extending leg of an L-shaped bracket, which is secured to the housing of a transmission or other non-rotating member, so as to prevent rotation of the pressure ring and the piston housing.
Patent CA-1314903-C (CA)
Inventor: TURBANTI LUIGI
IPC: C07C259/06
Filed: 1989-04-11
Granted: 1993-03-23
Abstract: ABSTRACT          The amides  of cyclomethylen-1,2-bicarboxylic  acids  having the formula:                    (I) A represents           R1 represents -H, -CH3 , -CH2-CH3, -CH(CH3)2,         ,       R2 represents -H, CH3. -CH2-CH3, CH(CH3)2, -CH2-CH2-CH3, -CH2-CH(CH3)2             -CH2-CH2-CH2-CH3, -CH2-C6H5, -C6-H5;            R3 represents -H, -CH3, -C2H5,  ,   R5 represents -H, -CH3, -C2H5, -CH2-C6H5,   Y = -H, -CH3, -CH(CH3)2 Z = -H, -CH3, -C(CH3)3,             ,       R4 = R5,     m is 0 or 1 and n is an integer varying between 0 and 3, are  endowed  with  ACE-inhibiting  activity and  are  thus therapeutically useful as anti-hypertension agents.          For their  preparation cyclomethylene-1,2-dicarboxylic  acid or a derivative  thereof is condensed  either with an  amino derivative containing a protected hydroxamic group, or  with an aminoester, and  then in the  former case the  protecting group is  removed, or  in the  latter case  is reacted  with either hydroxylamine or N-alkylhydroxylamine.
Patent CA-1296387-C (CA)
Title: Method for determining biaxial stresses in ferromagnetic materials
Inventor: TIITTO SEPPO I
IPC: G01R33/12
Filed: 1989-04-17
Granted: 1992-02-25
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention provides a method for determining biaxial stresses in a steel component by first generating a calibration datum from an experimental test piece having metallurgical properties similar to steel component and then applying values representative of measured Barkhausen noise levels obtained from the steel component to the calibration datum.  The practice of the present invention yields values of strain in the first and second principal directions at the selected location on the steel component under examination.
Patent CA-1312920-C (CA)
Title: Fast settling tone/data processing circuit
Inventor: INGRAM NORBERT D
IPC: H04B1/16
Filed: 1989-06-01
Granted: 1993-01-19
Abstract: FAST SETTLING TONE/DATA PROCESSING CIRCUIT             ABSTRACT    In a radio employing continuous tone or digital coded squelch system, fast settling tone processing circuitry is disclosed for a tone processing path which includes an FM detector, low pass filters and a tone limiter.  In an exemplary embodiment, a capacitor at the output of the FM detector in the tone/data processing path is charged as rapidly as possible to a new DC level, for example, by an off frequency transmitter.  A pulse is generated by, for example, the transceiver microprocessor which initiates the rapid charging of the capacitor as soon as it is detected that data needs to be read from the tone/digital data processing circuitry for decoding. Such a pulse is generated by the microprocessor whenever channel frequencies are changed and/or the carrier activity sensor becomes active.