baber/WOPTO huggingface dataset:
Patent CA-1276302-C (CA)
Title: Postal weighing apparatus and method
Inventor: FREEMAN GERALD C
IPC: G01G19/00
Filed: 1987-09-09
Granted: 1990-11-13
Abstract: POSTAL WEIGHING APPARATUS AND METHOD                Abstract of the Disclosure A postal scale having an improved response time to determine appropriate postage amounts and including an improved postal weighing algorithm.  The scale includes a transducer which produces a sequence of digital output signals representative of the instantaneous response of a scale and a microprocessor which detects the presence of mail pieces on the scale and determines estimates of the weight of the mail pieces as a function of subsequences of digital output signals, and uses these estimates to determine appropriate postage amounts.  The algorithm used in the scale of the subject invention takes advantage of the fact that postal rate charts (i.e. postal rates as a function of weight) are, in general, step-like (i.e. are constant over ranges between predetermined weight breakpoints).  The processor examines sequences of digital output signals and makes a first estimate of the weight of the mail piece and determines the distance from the first estimate to the closest breakpoint.  If the distance is sufficiently great the first estimate may be used safely to determine the appropriate postage amount.  If the distance is close a second more accurate estimate is then made and used to determined the appropriate postage amount.
Patent CA-1268853-C (CA)
Title: Image sensors
Inventor: MORCOM CHRISTOPHER JOHN
IPC: H04N5/335
Filed: 1987-10-19
Granted: 1990-05-08
Abstract: ABSTRACT A CCD image sensor is operated in an asynchronous mode to enable it to capture short lived events, or to freeze rapid motion. The image is acquired during an integration period which is triggered by a strobe pulse, and the resulting charge is held in a storage section of the CCD sensor until a regularly occuring field read-out period, during which the charge is read-out to constitute a video signal.
Patent CA-1284636-C (CA)
Inventor: CARLIN JOSEPHINE R
IPC: C07J73/00
Filed: 1987-11-16
Granted: 1991-06-04
Abstract: TITLE OF THE INVENTION   CARBAMOYL-4-AZA-5.alpha.-ANDROSTAN-3-ONES            ABSTRACT OF THE INVENTION:          The compounds of formula (I)           (I) wherein R is selected from hydrogen, methyl or ethyl, and R1 is C1-12 straight or branched chain alkyl wherein one of the hydrogens is substituted by hydroxy, carboxylic acid or C1-4 alkyl ester, and A is -CH2-CH2 or -CH=CH-, and pharmaceutical formulations of the above compounds are active as testosterone 5.alpha.-reductase inhibitors and thus are useful for treatment of acne, seborrhea, female hirsutism o? benign prostatic hypertrophy.
Patent CA-1302864-C (CA)
Inventor: HENDERSON ROBERT M
IPC: E06B9/11
Filed: 1988-02-17
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE         A machine and method for assembling awnings is disclosed.  Slats of the type having a front longitudinal side edge portion curled downwardly and rearwardly along the length of the slat, and having a rear longitudinal side edge portion curled upwardly and forwardly along the length of the slat in a complementing configuration are assembled so the rear curled side edge portion of a front such slat can slidably receive therealong said front side edge portion of an adjoining back such slat in interfitting relation permitting sideways angular movement of the slats in relation to one another.  The machine comprises longitudinally spaced and aligned anvil sections for supporting front and back such slats thereon in interfitting side-by-side relation, two punching units each having a downwardly acting punching means overlying respective of the anvil sections at longitudinally spaced locations for forming downwardly sloped locking tabs in the front interfitting side edge portion of the back slat while said slats are seated on the anvil sections and for also punching registering underlying cutouts in the rear interfitting side edge portion of the front slat such that the locking tbs extend into said cutouts to prevent relative endwise movement between said slats while permitting relative sideways angular movement therebetween.
Patent CA-1289403-C (CA)
Title: Film advance device for surveillance cameras
Inventor: ALEXANDER JOHN G
IPC: G03B9/10
Filed: 1988-03-29
Granted: 1991-09-24
Abstract: FILM ADVANCE DEVICE FOR SURVEILLANCE CAMERAS                 ABSTRACT OF THE DISCLOSURE            A sequence camera for recording a series of images on a strip of photographic film employing a rotating shutter and an intermittent film advance mechanism.  A motor drives the shutter and the film advance mechanism.  The film advance mechanism uti-lizes a beater wheel with two protruding pins spaced unequally about the circumference and a spoke wheel with a plurality of spokes.  As the motor drives the beater wheel,  the pins intermittently engage the spokes of the spoke wheel, which, in turn, intermit-tently advances the film.  The film is exposed by the shutter during the stationary period between advance-ments.
Patent CA-1296985-C (CA)
Title: Apparatus for sterilizing film and like packaging material
Inventor: POSEY JOHN L
IPC: B65B55/04
Filed: 1988-04-06
Granted: 1992-03-10
Abstract: ABSTRACT          APPARATUS FOR STERILIZING FILM AND LIKE PACKAGING MATERIAL          An apparatus for sterilizing packaging material.  The apparatus includes a container for containing a liquid sterilant bath through which the packaging material is drawn and guided.  The container having an entry opening and exit opening, and guide rollers.  At least one spray nozzle located at a position above the level of liquid sterilant for spraying the packaging material with recirculated filtered liquid sterilant after it has passed through the liquid sterilant bath.
Patent CA-1315290-C (CA)
Inventor: DIOSADY LEVENTE L
IPC: B01D11/02
Filed: 1988-04-15
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE           A method of extracting components from particulate materials is disclosed.  The method includes the steps of mixing the particles with a first extraction solvent to provide a slurry.  The slurry is then passed through an extraction zone. second extraction solvent is passed countercurrently to the slurry through the extraction zone.  The second solvent has a different density from the first solvent and is substantially immiscible with the first solvent.  This process is particularly beneficial for use in the extraction of ground oil-seed particles.
Patent CA-1324796-C (CA)
Inventor: TSUBONIWA NORIYUKI
IPC: C08F20/36
Filed: 1988-06-03
Granted: 1993-11-30
Abstract: Abstract:        The present invention is directed to a peroxide monomer having the formula:           CH2=CR-A-OO-B                     (I) wherein R represents a hydrogen atom or an alkyl having 1 to 5 carbon atoms, A represents -NH-CO-, -CO-NH-CO-, or -CO-O-CH2CH2-NH-CO-, and B represents a moiety which has excluded the group (-OOH) from a hydroperoxide and a method of preparation thereof.  The present invention also provides a polymer whose main chain composed of carbon-carbon bonds is bonded with a pendant peroxide group represented by the formula:        -A-OO-B                        (II) wherein A and B is the same as mentioned above, the content of the pendant peroxide group being 0.1 to 99.9% by weight and a molecular weight of said polymer being 1,000 to 100,000; and a method of preparation thereof.
Patent CA-1327000-C (CA)
Inventor: TYRRELL DAVID L J
IPC: C07D473/16
Filed: 1988-08-04
Granted: 1994-02-15
Abstract: ABSTRACT OF THE DISCLOSURE       A method is disclosed for the treatment of hepadnavirus infection in animals.  Animals infected with duck hepatitis B virus may be treated with the 2',3'-dideoxynucleoside of adenine, guanine, hypoxanthine, 2,6-diaminopurine or various analogs of substituted purines.  Several purine 2',3'-dideoxynucleosides inhibit duck hepatitis B virus in hepatocyte culture >99% at 1 µg/ml.  Potent in vivo efficacy of the 2,6-diaminopurine 2',3'-dideoxynucleoside for clearance of duck hepatitis B virus from the sera of Pekin ducks is demonstrated.  The selective effect on hepadnavirus replication by the purine 2',3'-dideoxynucleosides is based on the discovery of an unexpected sensitivity of hepadnavirus to purine 2',3'-dideoxynucleoside analogs. These compounds present a new antiviral therapy of acute or persistent hepadnavirus infections.
Patent CA-1315980-C (CA)
Title: Method for cooling a kiln furnace
Inventor: MONNI V AARNE
IPC: F27B7/38
Filed: 1988-08-08
Granted: 1993-04-13
Abstract: (57) ABSTRACT   The invention relates to the cooling of a rotary kiln with a liquid cool-ing agent. According to the invention, the cooling agent is distributed to form an essentially even liquid blanket above the rotary kiln (1). In order to achieve this, a number of baffle plates (6) and/or nozzle pipes (9) is arranged at an equal height with respect to the surface of the rotary kiln (1).
Patent CA-1316452-C (CA)
Inventor: NEFF CRAIG A
IPC: B31D3/02
Filed: 1988-08-17
Granted: 1993-04-20
Abstract: A B S T R A C T         An expandable collapsible product is made by providing a pleated sheet (8,10) having legs (20) which are made by securing two parts of a fold (17) together.  Two sheets are combined by securing the end of a leg (20) to a crease (16) or a leg (20) of an opposite sheet. The sheet material can be folded to provide alternating taller folds (17) and shorter folds (16), and the taller folds are modified to provide the legs (20) by glueing parts of the taller folds (17) together.  Glueing can be accomplished by moving glue heads across the sheet at high velocity through the use of linear motors.  The glue lines may be heated after being laid down by the use of electro-magnetic radiation, preferably from a high-powered laser.  The finished product may be used as insulated window coverings, or the like.
Patent CA-1275434-C (CA)
Title: Adjustable desk top assembly
Inventor: LOCHRIDGE EDWIN
IPC: A47B21/03
Filed: 1988-08-24
Granted: 1990-10-23
Abstract: ADJUSTABLE DESK TOP ASSEMBLY                    ABSTRACT OF THE DISCLOSURE          An adjustable desk-top assembly is disclosed having upper, lower, and inner side panels, the upper and lower panels being spaced apart for forming a compartmentalized enclosure. The desk-top has an adjustable work surface capable of assuming a slope and a centralized cut-out portion therein for extending in a semi-circle around the user of the desk.  The inner or door panels, are releasably secured and can be removed for accommodating any of a number of suitable components.  The slope imparted to the work surface can be adjusted to an optimum level for the particular task and, by imparting greater slope and covering the components therein, a security measure is also provided.
Patent CA-1316027-C (CA)
Title: Method for fabricating devices including multicomponent metal halide glasses and the resulting devices
Inventor: BAUTISTA JERRY R
IPC: C03C3/32
Filed: 1988-09-28
Granted: 1993-04-13
Abstract: Abstract A new method for fabricating devices which include multicomponent metal halide glasses, e.g., multicomponent metal halide glass optical fibers, is disclosed. In accordance with the inventive method, a multicomponent metal halide glass body, essentially free of crystallites, is produced by cooling essentially every portion of a melt incorporated into the glass body at a quench rate which is necessarily greater than or equal to about 10 Kelvins per second (K/see). This necessary quench rate is achieved by successively quenching relatively small portions of the melt, e.g., thin layers or droplets of melt material, having relatively small cross-sectional dimensions.
Patent CA-1326418-C (CA)
Inventor: YANG VICTOR C
IPC: A61M1/36
Filed: 1988-10-21
Granted: 1994-01-25
Abstract: Abstract of the Disclosure Heparin in an extracorporeal blood flow circuit is removed from the blood flow with the use of a filter which contains immobilized protamine on a blood-compatible support.          In medical procedures where blood is processed in an extracorporeal device, such as an artificial kidney, or a heart-lung machine, the blood is heparinized to prevent clotting thereof in the channels of the extracorporeal device, and the formation of thrombi.  In accordance with the invention, the processed, heparinized blood is conducted to a filter arrangement wherein protamine is held immobilized on a support formed of a blood-compatible material.  Such an arrangement actually removes heparin from the blood rather than merely negates the anticoagulation effects of the heparin, as is the case in conventional protamine infusion therapy.  In the present invention, the extracorporeal blood which is returned to the patient is substantially free of both heparin and protamine.  Various chemical mechanisms are presented for activating a polymeric support material so as to bond covalently with the protamine.
Patent CA-1333200-C (CA)
Inventor: DESJARDINS GAETAN
IPC: C02F7/00
Filed: 1988-11-25
Granted: 1994-11-22
Abstract: An aeration and mixing jet header for use in the construction of water and wastewater treatment system is disclosed. The header has a body provided with a cylindrical waste water passage,  a cylindrical air passage and a wastewater outlet  conduit  extending  laterally of  the  wastewater passage.  An airfeed device connects the air passage and the wastewater passage.  This device is intended to allow air to flow from the air passage and be injected into the waste water flowing through the outlet conduit.  More specifically, this invention describes an optimum construction method for such jet headers based on modularity principe allowing  for full inspection and compliance to fiber glass official con-struction codes.
Patent CA-1317041-C (CA)
Title: Apparatus for creating a cursor pattern by strips related to individual scan lines
Inventor: GARRETT BILLY W JR
IPC: G09G1/00
Filed: 1988-12-01
Granted: 1993-04-27
Abstract: APPARATUS FOR CREATING A CURSOR PATTERN BY STRIPS       RELATED TO INDIVIDUAL SCAN LINES            Abstract of The Disclosure An architecture for generating a hardware cursor in the context of a bit mapped video display system operable from a frame buffer with non-displayed but addressable memory space.  A segment of the non-displayed memory is loaded with cursor outline and pattern information.  The cursor data is accessed from the non-displayed segment of the memory during horizontal blank time preceding the raster scan of the video pattern data subject to cursor overlay. Thereby, the video pattern data in the frame buffer and cursor data are arranged by scan or row line.  The column location of the cursor pattern is defined by the computer and stored in a position counter to be synchronously incremented by pixel during the scan of the frame buffer line  At the appropriate count the cursor data is logically combined with frame buffer pattern data to superimpose the cursor characteristics upon the video pattern data.  The cursor data buffer can thereby be relatively small yet overlay a relatively large cursor with minimal manipulation by the computer controlling the video display.
Patent CA-1293022-C (CA)
Title: Test device for circuit breakers having electronic trip units
Inventor: WALKER CHRISTOPHER G
IPC: H02H3/04
Filed: 1989-03-06
Granted: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE The  invention is directed to a  portable  test device for an electronic trip unit which is electrically powered from the internal power supply of the trip unit being tested.  The test unit utilizes three leads connected to the trip unit.  One of the leads connects to the voltage source for the trip unit and another lead connects to the ground potential to acquire power from the test unit.  The voltage is selectively adjusted within the test unit by resistors and a potentiometer to vary the input voltage which is to be carried by the third lead into the trip unit.
Patent CA-1340043-C (CA)
Inventor: RECASENS JOSEPH
IPC: C01G25/02
Filed: 1989-03-17
Granted: 1998-09-15
Abstract: The  invention  relates  to  the  chemistry  of zirconium. It relates to reactive derivatives of zirconium, characterized in that they are in the form of a pulverulent white solid which is not crystallized and dry in appearance,  and consist of metazirconic acid ZrO(OH)2 accompanied by free or weakly bound water, it being possible for some of the OH- ions to be replaced by halide ions, the ZrO2 content of these derivatives being from 60 to 92% by weight inclusive and the water content of these derivatives ranging from 3 to 40% and the halide ion content of these derivatives being capable of ranging up to approximately 5% by weight, and to a process for their preparation.        The solid derivatives of the invention can be easily converted into usual  reactive derivatives  of zirconium by reaction with an aqueous solution of an acid.
Patent CA-1341379-C (CA)
Title: Purified antithrombin-iii and methods of producing the same
Inventor: MATSUMOTO ISAHIKO
IPC: A61K38/00
Filed: 1989-04-21
Granted: 2002-07-23
Abstract: Antithrombin-III is purified by contacting an aqueous solution of antithrombin-III derived from human plasma with an insoluble carrier containing as a ligand a hydrophobic group and recovering a non-adsorbed fraction. By this purification, there are provided antithrombin-III preparations containing human plasma-derived antithrombin-III, in which virus is inactivated and which are substantially free from contaminants of at least pyrogen and thermally denatured protein produced by the inactivation.
Patent CA-1326827-C (CA)
Title: Dentifrice gels containing sodium bicarbonate
Inventor: WINSTON ANTHONY E
IPC: A61Q11/00
Filed: 1989-05-04
Granted: 1994-02-08
Abstract: ABSTRACT A dentifrice gel comprising from 5 to 60% sodium bicarbonate in an aqueous carrier incorporating from 15 to 60% by weight of a humectant such as glycerin and/or sorbitol.  Secondary abrasives such as hydrous silica gels, alkali metal phosphates, and complex aluminosilicates may also be incorporated in the gel in amounts of from 0 to 20% thereof without impairing the optical translucence thereof. Thickening agents, surfactants, flavoring agents, sweeteners, fluoridating agents, and other conventional adjuvants may also be included in the gel formulation.
Patent CA-1340527-C (CA)
Inventor: LEIF ROBERT C
IPC: C07D471/18
Filed: 1989-05-29
Granted: 1999-05-04
Abstract: Functionalized water soluble macrocyclic complexes of lanthanide, actinide and yttrium ions were obtained by metal templated, Schiff-base, cyclic condensation of: (1) a functionalized 1,2-diaminoethane and a dicarbonyl compound selected from the group consisting of 2,6-dicarbonylpyridine, 2,6-diformylpyridine, 2,5-dicarbonylfuran, 2,5-diformylfuran, 2,5-dicarbonyl-thiophene and 2,5-diformylthiophene; or (2) 1,2-diaminoethane and a ring-substituted heterocyclic dicarbonyl compound selected from a group consisting of substituted 2,6-dicarbonylpyridine, substituted 2,6-diformylpyridine, substituted 2,5-dicarbonylfuran, substituted 2,5-diformylfuran; substituted 2,5-dicarbonyl thiophene, and substituted 2,5-diformylthiophene. Coordination complexes thus formed are kinetically stable in dilute aqueous solution. They are further reacted, or coupled, through a substituent on the 1,2-diaminoethane or on the pyridine, furan, or thiophene moieties, to one of the following: proteinaceous materials, polysaccharides, other biologically compatible macromolecules or bridging molecules which, can be further reacted or coupled to the above mentioned substrates.  These macrocyclic complexes are suitable in the preparation of reporter molecules and for magnetic resonance, radiation imaging and radiation therapy.
Patent CA-1304459-C (CA)
Title: Ecl to cmos converter
Inventor: SANWO IKUO J
IPC: H03K19/0185
Filed: 1989-06-05
Granted: 1992-06-30
Abstract: ECL TO CMOS CONVERTER            Abstract of the Disclosure The subject invention is an ECL to CMOS converter for converting high or low ECL logic signals.  The converter comprises a CMOS inverter for providing low or high CMOS logic signals at its output in response to a first or second signal, respectively, applied to its input.  The first signal must exceed a first predetermined value and the second signal must fall below a second predetermined value.  The first and second predetermined values are such that either the low ECL signal does not fall below the second predetermined value or the high ECL signal does not exceed the first predetermined value.  The converter also provides means for converting the high and low logic signals to the first and second signals, respectively.
Patent CA-1335030-C (CA)
Inventor: PEDERSEN DAVID R
IPC: D01F6/56
Filed: 1989-07-11
Granted: 1995-04-04
Abstract: The invention is a crystalline fiber comprising syndiotactic polystyrene, or a mixture.  Preferably the fiber is a high strength fiber isotactic polystyrene and syndiotactic polystyrene wherein the fiber is monoaxially oriented, has a tensile strength of 10,000 psi or greater, and a modulus of 1,000,000 psi or greater.       In another aspect the invention is a process for the preparation of fibers of syndiotactic polystyrene, or a mixture of isotactic polystyrene and syndiotactic polystyrene which comprises:   A.  contacting syndiotactic polystyrene, or a mixture of isotactic polystyrene and syndiotactic polystyrene with a solvent for the polystyrene at elevated temperatures under conditions such that a homogeneous solution is formed which has sufficient viscosity to be extruded;     B.  extruding the solution through an orifice to form a fiber at elevated temperatures;   C.  quenching the fiber by passing the fiber through one or more zones under conditions such that the fiber solidifies;     D.  removing the solvent for the polystyrene from the fiber; and E.  cooling the fiber to ambient temperature.       In the embodiment where it is desirable to prepare high strength fibers, the fibers are further exposed to the following process steps:   F.  heating the fiber to a temperature above the glass transition temperature of the polystyrene;   G.  redrawing the fiber to elongate the fiber, maximize crystallinity, and induce monoaxial orientation of the polystyrene in the fiber.
Patent CA-1328105-C (CA)
Title: Derivatized alkanolamines as cardiovascular agents
Inventor: LIS RANDALL E
IPC: A61K31/415
Filed: 1989-07-12
Granted: 1994-03-29
Abstract: ABSTRACT      Novel derivatized alkanolamines of the following structural formula   are described as useful cardiovascular agents.  Most especially described is their usefulness as cardiovascular agents exhibiting an antiarrhythmic effect.  Said antiarrhythmic effect is of a combination Class II/Class III variety.  Pharmaceutical formulations containing such compounds are also described.
Patent CA-1276007-C (CA)
Title: Deflection apparatus
Inventor: ZEER ROBERT L
IPC: E21B49/06
Filed: 1989-07-24
Granted: 1990-11-06
Abstract: ABSTRACT OF THE DISCLOSURE     There is provided a new and useful deflection method and apparatus for use in directional boring! the apparatus comprising a housing which is adapted to be disposed about a drill string and to be rotatable relative to the drill string; a deflection member pivotally connected to the housing and moveable between a first equilibrium position in which the member is in a retracted position adjacent the housing and a second position in which the member is biased toward an extended position outwardly of the housing; means for maintaining the member in the first equilibrium position; means responsive to an external force for releasing the member from the equilibrium position; means for biasing the deflection member into the extended position; and means for locking said deflection member in the extended position; and wherein the means for biasing is responsive to the release of the deflection member from the first equilibrium position to move the deflection member toward the second position.  The method comprises the use of an apparatus such as that of the invention.