baber/WOPTO huggingface dataset:
Patent CA-1302890-C (CA)
Title: Stable ophthalmic preparations containing acetazolamide
Inventor: POTTS ANGELA C
IPC: A61K31/425
Filed: 1988-02-29
Granted: 1992-06-09
Abstract: 30,327-00                ABSTRACT                 STABLE OPHTHALMIC PREPARATIONS    CONTAINING ACETAZOLAMIDE There is provided stable, ophthalmic aqueous composition for topical administration, comprising (a) ace-tazolamide and either (b) a pre-formed, pharmaceutically acceptable, aqueous gel or (c) an aqueous gel-forming liquid capable of forming a pharmaceutically acceptable gel in situ when applied topically to a patient; said composition having a pH of less than 5Ø
Patent CA-1316516-C (CA)
Inventor: ADKINS RICHARD C
IPC: B64C21/04
Filed: 1988-06-01
Granted: 1993-04-20
Abstract: ABSTRACT       An  aerofoil  or  hydrofoil (1) has means (2) for providing a high velocity jet of  fluid  directed  from a  nozzle (3)  in  a  direction  having a component of velocity  in  the  same  direction  as   the   required direction of lift (L);      a  curved  surface  (5) convex on the side of the aerofoil or hydrofoil which  is  in  the  direction  of the required  lift,  and  which  serves  to direct the velocity  of  the  jet  in a   direction   which   is substantially   opposite   to   the  direction  of  the required lift or thrust force, the  primary  jet  being directed   over   the  convex  surface  for  attachment thereto; and a duct formed over a  rear  part  of  the  convex surface remote from the nozzle, whereby  the  primary  jet  of fluid flowing over and attached to the convex surface causes  an  enhanced flow  through  the  duct,  the  duct  being directed at least at its exit end in a direction so that  the  flow therethrough  has  a  component  of  velocity  opposite that of the required direction of lift.
Patent CA-1280873-C (CA)
Title: Method of synthesizing amorphous group iiia-va compounds
Inventor: DAVID LAWRENCE D
IPC: C01B35/04
Filed: 1988-06-30
Granted: 1991-03-05
Abstract: A METHOD OF SYNTHESIZING AMORPHOUS    GROUP IIIA-GROUP VA COMPOUNDS  Abstract of the Disclosure A   method   of   synthesizing   amorphous Group IIIA-Group VA compounds.  A first solution is prepared which consists of a tris(trialkylsilyl) derivative of either a Group IIIA or Group VA element dissolved in an organic solvent.  A second solution is then prepared which consists of a halide of the other of the Group IIIA  or  Group  VA  element  dissolved  in  an  organic solvent.  Then the first and second solutions are mixed such that a Group IIIA-Group VA compound is formed along with a trialkylhalosilane by-product.  The final step of the method consists of removing the trialkyl-halosilane by-product and organic solvent mixture to form the Group IIIA-Group VA condensed phase.
Patent CA-1308205-C (CA)
Title: Method and apparatus for multimonitor adaptation circuit
Inventor: THOMA ROY E III
IPC: G06F3/12
Filed: 1988-08-01
Granted: 1992-09-29
Abstract: METHOD AND APPARATUS FOR MULTI-MONITOR ADAPTATION CIRCUIT                 ABSTRACT OF THE DISCLOSURE      A method and apparatus for controlling two or more video display devices using a single display controller, where the display devices generally require different control data.  Basic display control parameters are stored in a memory and, when the controller is to be switched from one display device to another, the parameters are read from the memory into a substitution device.  The substitution device receives modification control signals which depend on the newly selected display device and modifies the display control parameters before re-programming the display controller.  The display controller then contains the parameters as appropriately modified for the currently controlled display device.  The operator can switch from one monitor to another by generating an appropriate control signal, whereupon the substitution device again reads the control parameters from the memory, modifies them according to the newly selected display device, and re-programs the display controller using the modified parameters.
Patent CA-1319083-C (CA)
Title: Trap seal
Inventor: NUNWEILER M W KENNETH
IPC: B23D59/02
Filed: 1988-08-11
Granted: 1993-06-15
Abstract: ABSTRACT OF THE DISCLOSURE           A tree-felling saw head that is slidably displaceable out of an enclosure by a pair of hydraulic rams and into cutting relationship with a tree, includes a pair of stationary top and bottom plates between which is rotatably mounted a saw disk with replaceable teeth.  The disk is driven by a pinion gear of a hydraulic motor engaging a ring gear mounted within a recess of the disk, into which the top plate fits as a protective cover.  Intrusion of foreign matter into the saw head through a clearance space between the disk and top plate is inhibited by a trap seal that comprises, in one embodiment, a pair of coplanar annular grooves in the facing circumferential edges of the top plate and the outermost radial boundary of the recess and a semisolid flowable lubricant disposed within the recess, clearance space and grooves.  Further embodiments of the trap seal include a similar pair of grooves between corresponding circumferential edges of the disk and bottom plate, as well as annular chambers formed between the facing surfaces of the disk and plates.
Patent CA-1339230-C (CA)
Title: No-post-cure method of curing polyacrylate polymer
Inventor: WOLF FRED RICHARD
IPC: C08L33/04
Filed: 1988-09-21
Granted: 1997-08-05
Abstract: A no-post-cure method of curing polyacrylates having dual cure sites is accomplished with a two-part curing system or a combined one-part curing system. The two-part curing system consists of one or more metallic acid salts and an ammonium and/or phosphonium quaternary salt. The one-part curing system consists of an ammonium or phosphonium quaternary acid salt. The polyacrylate rubber must have both a halogen and a carboxyl cure site. The method consists of blending the curative with the polyacrylate rubber and heating the resultant composition until the composition cures. Because the mixed composition is shelf stable, it is not necessary to immediately heat the composition to cure it. The method may optionally include the step of storing the mixed composition until it is desired to cure it.
Patent CA-1318970-C (CA)
Title: Motion estimator
Inventor: PARKE IAN
IPC: G06T7/20
Filed: 1988-09-22
Granted: 1993-06-08
Abstract: ABSTRACT                    MOTION ESTIMATOR     A motion vector suitable for motion-compensated prediction in an inter-frame differential video coder is derived by comparison of each block of a current frame with the corresponding region of a previous frame and with shifted regions of the previous frame. Rather than dealing with each block in turn, the apparatus carries out all comparisons involving a line n of the video signal before commencing comparisons involving n+p (where p is the number of lines encompassed by a block).
Patent CA-1306551-C (CA)
Title: Semiconductor device having tungsten plugs
Inventor: HUTTEMANN ROBERT D
IPC: H01L21/28
Filed: 1988-09-23
Granted: 1992-08-18
Abstract: SEMICONDUCTOR DEVICE HAVING TUNGSTEN PLUGS            Abstract A metallization scheme useful for integrated circuits uses a buffer layer (e.g., S) to ensure that the etch back of a contact metal (e.g., 7), such as tungsten, deposited over the buffer layer, can be controlled to form a complete tungsten plug in a via while the tungsten on the dielectric is completely removed. Different etch rates of the buffer and contact materials ensure that, once the buffer layer is exposed, it etches rapidly and the contact material is not significantly etched.
Patent CA-1334825-C (CA)
Title: Solid phase indicator red blood cells and method
Inventor: SINOR LYLE T
IPC: G01N33/53
Filed: 1988-10-18
Granted: 1995-03-21
Abstract: A method and composition for use in preparing red blood cells for use as indicator cells to detect the presence of antigens and antibodies in biological fluids is the subject of the present invention.  Freshly collected human or animal erythrocytes are washed six times with isotonic saline, and suspended to a hematocrit of four percent (volume/volume) with isotonic saline.  An incomplete antibody, specific for the antigen or antibody to be detected, in a quantity less than that which would cause irreversible agglutination, is added to the erythrocyte solution.  The mixture is incubated, washed, and suspended to a hematocrit of 3-5 (v/v) with isotonic saline.  A second antibody, immuno specific for the first antibody and in an amount sufficiently great to immunologically bind substantially all of the antibody carrying red blood cells but not so great as to cause irreversible agglutination, is attached to the erythrocytes.  This mixture is incubated, washed, and suspended to a hematocrit of 0.1-1% (v/v) in a media con-taining red blood cell nutrients.  The resulting indicator red blood cells are used with solid phase immunological testing using various types of solid substrates.
Patent CA-1329356-C (CA)
Title: Heavy duty pneumatic tires preventing uneven wearing
Inventor: KUKIMOTO TAKASHI
IPC: B60C11/03
Filed: 1988-10-19
Granted: 1994-05-10
Abstract: HEAVY DUTY PNEUMATIC TIRES PREVENTING UNEVEN WEARING                 ABSTRACT OF THE DISCLOSURE        An uneven wear-resisting heavy duty pneumatic tire comprises main grooves continuously extending in a tread of the tire along a circumference thereof, land portions separated by the main grooves, and stepped zones each provided in the land.  Each stepped zone has a surface located radially inside of the tread by a step a viewed sectionally.  Each of said stepped zones is separated from the adajcent land portions via a pair of circumferentially extending grooves or narrow cuts.          An uneven wearing-sacrificing portion is formed by the surface of the stepped zone.  The uneven wear-sacrificed portion slide-contacts with the tread within the tread ground-contacting area for supporting the load exerted upon the tire.
Patent CA-1313654-C (CA)
Title: Cephalosporins containing a substituted vinyl radical in 3; process for preparing the same; their use as drugs; compositions containing them and new intermediates produced
Inventor: ASZODI JOSZEF
IPC: C07D501/24
Filed: 1988-11-02
Granted: 1993-02-16
Abstract: Products of formula (I): 
<IMAGE>
 syn isomer
 in which:
 R = H, alkyl, alkenyl, alkynyl or cycloalkyl, optionally substituted, 
<IMAGE>
 A = H, alkali metal, alkaline-earth metal, magnesium, organic base or CO2A = CO2<-> and their salts, process for their preparation, their application as medications, compositions containing them and the new intermediates obtained.
Patent CA-1319538-C (CA)
Title: Method for determining the quality of gluten in wheat
Inventor: PERTEN HARALD
IPC: G01N19/00
Filed: 1988-11-02
Granted: 1993-06-29
Abstract: ABSTRACT        The quality of gluten in wheat is determined by centrifuging a gluten sample taken from a wheat dough against a sieve. Upon completion of the centri-fugation process, it is determined how large a proportion of the sample has remained in the sieve, without penetrating therethrough. The magnitude of this proportion is used as a measurement of the gluten quality.
Patent CA-1303153-C (CA)
Inventor: BOURGEOIS CLAUDE
IPC: H03H9/19
Filed: 1988-11-28
Granted: 1992-06-09
Abstract: The piezoelectric resonator (1) comprises two plates (5,6) and at least two parallel bars (2 to 4) connecting the plates (5,6) to each other. The orientation of the quartz wafer in which the resonator (1) is cut and the arrangement of the electrodes (9 to 11, 15 to 17) on the bars (2 to 4) are such that these bars (2 to 4) vibrate in an elongation mode. The elongation mode of the bars is coupled to a plate and bar flexure mode to improve the thermal properties of the resonator. This resonator can be used in devices in which the dimensions of the resonator have to be as small as possible and/or in which its resonance frequency has to be as low as possible.
Patent CA-1315688-C (CA)
Title: Compositions and methods for improving cold tolerance in animals and humans
Inventor: LEE TZE-FUN
IPC: A61K38/45
Filed: 1988-12-20
Granted: 1993-04-06
Abstract: ABSTRACT           The invention disclosed is a composition for improving cold tolerance in animals and humans, comprising an adenosine receptor antagonist or an adenosine de-activator.  Preferably, a nutritional supplement is also provided which further enhances cold tolerance.  The nutritional supplement includes various combinations and amounts of carbohydrate, protein and fat.
Patent CA-1333610-C (CA)
Title: Diorganopolysiloxane with a 3-benzylidenecamphor function
Inventor: CANIVENC EDITH
IPC: C08G77/38
Filed: 1988-12-28
Granted: 1994-12-20
Abstract: A diorganopolysiloxane containing a 3-benzylidenecamphor functional group chosen from those of the formula: 
<IMAGE>
 in which:
 - A and/or B is a 3-benzylidenecamphor group. 
<??>The invention also relates to a process for the preparation of the polymers of formulae (1) and (2) and their use in particular as a lubricant for PVC.
Patent CA-1316131-C (CA)
Title: Clutch
Inventor: FORTUNE DAVID J
IPC: F16D43/20
Filed: 1989-03-31
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE   A torque limiting clutch in which relatively rotatable and axially movable drive members are interconnected by bails and are axially biased together into torque transmitting engagement by air pressure which is released when the drive members move axially apart on disengagement when torque exceeds a predetermined value and in which the balls are guided by a cage so as to be maintained out of engagement with one drive member after disengagement. The cage is thinner than the radius of the balls and springs act on the cage and one drive member to maintain the balls out of engagement with the one drive member.
Patent CA-1316086-C (CA)
Title: Soldering material for spectacle frame and spectacle frame in which said soldering material is used
Inventor: SEGOSHI KAZUO
IPC: G02C5/00
Filed: 1989-04-13
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE      A shape memory alloy is used for face-contacting parts (1, 3, 4, 5; 101) and lens-fixing parts (2) of a spectacle frame, and parts (12, 13; 103) connected thereto are formed of titanium, a titanium alloy, nickel, or a chromium alloy. These parts are suitably soldered by a soldering material (111) formed of 5 - 15 wt.% of palladium, 5 - 15 wt.% of gallium, and a balance consisting of silver.
Patent CA-1320968-C (CA)
Title: Procede de preparation de derives fluores fonctionnels
Inventor: BENEFICE-MALOUET SYLVIE
IPC: C07C67/00
Filed: 1989-05-03
Granted: 1993-08-03
Abstract: L'invention concerne un procédé permettant de synthétiser, de façon relativement simple à comparer aux procédés connus, des dérivés fluorés fonctionnels et plus particulièrement des aldéhydes perfluorés du type RF-CHO où RF désigne un radical perfluoroalkyle linéaire ou ramifié. Selon ce procédé, on fait réagir, en présence d'un initiateur radicalaire, un iodure de perfluoroalkyle RFI sur le couple métallique radicalaire, un iodure de perfluoroalkyle RFI sur le couple métallique zinc-cuivre avec un amide RCONR1R2, R désignant un atome d'hydrogène ou un radical méthyle ou éthyle, R1 et R2 représentant chacun un radical alkyle en C1 à C4.
Patent CA-1312109-C (CA)
Title: Oil-filled submergible electric pump motor with unvarnished stator structure
Inventor: MILLER CYNTHIA S
IPC: H02K5/132
Filed: 1989-05-04
Granted: 1992-12-29
Abstract: Abstract of the Disclosure An oil-filled, high temperature, submergible electric pump motor comprises an unvarnished stator structure having stator windings formed of conductors coated with hydrolytically stable, oil-resistant, and abrasion-resistant insulation exposed to the oil of the motor, and preferably selected from the group consist-ing of PEEK, PEK, and PBI.  The stator windings have end turns mounted on rigid, hydrolytically stable, oil-resistant electrically insulating blocks that support the weight of the stator windings and immobilize the end turns.  The end turns are attached to the blocks by hydrolytically stable, oil resistant electrically insulating tape.  Other components of the insulation system are selected for their hydrolytic stability and oil resistance, and in some instances for their non-abrasive properties.  For most applications con-templated by the invention, critical components of the insulation system have a dielectric strength of the order of 300 to 400 volts/mil and a continuous use temperature of the order of 400°F.
Patent CA-1323262-C (CA)
Inventor: SHIMEK RONALD J
IPC: F24B1/19
Filed: 1989-05-29
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE           A universal fireplace is provided as a standard prefabricated substantially hollow rectangular prism shaped frame adapted to support all six walls of the universal fireplaces supported on the hollow rectangular prism shaped frame.  The top wall is adapted to support the exhaust stack and the bottom wall is adapted to support the fire brick for the fire chamber.  At least one of the sidewalls comprises a pair of glass doors supported by edge frame means pivoted on upper and lower side support panels which are mounted on said hollow rectangular prism shaped frame.
Patent CA-1317671-C (CA)
Title: Phase discrimination and data separation method and apparatus
Inventor: CHEN SHIN C
IPC: H03L7/089
Filed: 1989-06-02
Granted: 1993-05-11
Abstract: ABSTRACT    Phase discrimination and data separation method and apparatus for on-track error recovery by shifting input data in time relative to a clock to improve recovery of error bits due to bit shift in a disk storage system having a servo clock synchronized to a disk's rotational speed and a reference clock which must be synchronized to the servo clock to insure that the data previously written onto the disk will be retrieved correctly during read back.  Data encoded in (1,7) or denser codes can be recovered because of fewer transitions in a phase discriminator and therefore a shortened phase discrimination cycle in a feedback loop to avoid interference into the following correction.  Readback data pulses for address mark (AM) search operations are standardized while a PLL is phase locked to the servo data, reducing or eliminating misdetection of AM due to delay skew or pulse width variations.  Sequential logic avoids race conditions.
Patent CA-1326741-C (CA)
Inventor: KNOCH MARTIN
IPC: A61F2/24
Filed: 1989-06-30
Granted: 1994-02-08
Abstract: ABSTRACT              A HEART VALVE PROSTHESIS    A heart valve prosthesis,  the inner surface of the valve ring of which continuously narrows in flow di-rection, is provided with a special manner of support ting the closing members. The valve ring is provided with sector-shaped recesses into which a respective oblong journal pin of the closing member extends. In the  opening  and  closing movement,  the  journal  pin sweeps the bottom of the recess like a windshield wi-per. Thus, a formation of thrombi in the vicinity of the bearings is prevented.
Patent CA-1328169-C (CA)
Inventor: SKEES HUGH B
IPC: B41M5/165
Filed: 1989-07-11
Granted: 1994-04-05
Abstract: Abstract of the Disclosure The present invention provides a laminate construction including a backing sheet, which may be in the form of a continuous web, and a face sheet covering at least a portion of the backing sheet.  A releasable adhesive secures a first or lower surface of the face sheet to a first or upper surface of the backing sheet such that the face sheet and backing sheet are readily separable.  The releasable adhesive contains therein a first composition which, when subjected to an imaging force, forms a latent image on both of the first surfaces of the face and backing sheets.  This latent image may be developed at a later time by contacting the image with a second composition which, when exposed to the first composition, forms a visible image.  In the laminate, the face sheet may be imprinted with legible and/or covert information.  The covert information may be duplicated on the underside of the face sheet or on one or more intermediate sheets as well as a backing sheet.  The face sheet can then be readily peeled from the construction and be used as a label, tag, form, or the like.  The underlying sheets retain the same information as the face sheet.  The covert or latent information can be developed at a later time to produce a visible image.  All elements of the construction have nontacky surfaces, permitting easy handling and storage.
Patent CA-1331311-C (CA)
Inventor: SIEBRECHT MANFRED
IPC: A22C13/00
Filed: 1989-07-27
Granted: 1994-08-09
Abstract: Abstract of the Disclosure The tubular packaging casing,  in particular artificial sausage casing, based on cellulose contains a textile sheet-shaped structure which is surrounded by cellulose and gives the outside of the casing a sturdy texture.
Patent CA-1337804-C (CA)
Inventor: GUZZETTA FRANKLIN H
IPC: C25D5/50
Filed: 1989-08-03
Granted: 1995-12-26
Abstract: Galvannealed electroplated steel strip. The strip is heated to an alloying temperature of at least about 427°C using an induction coil operated at afrequency to produce an eddy current penetration depth of one-half the strip thickness. The diffusion temperature and time are controlled to minimize the formation of brittle gamma alloy phases in the zinc/iron alloy coating.
Patent CA-1334134-C (CA)
Title: Dental syringe tip and adaptor
Inventor: DAVIS WARREN L
IPC: A61C17/02
Filed: 1989-09-05
Granted: 1995-01-31
Abstract: A clear rigid plastic syringe tip having a central water passageway and three arcuate section air passageways disposed circumferentially about the water passageway.  A novel adaptor is used to mount the syringe tip to the handpiece body.          Alternatively, the syringe tip has an extension that mounts the syringe tip into an adaptor which holds the assembly in the handpiece body.  Alternatively, the adaptor is provided with a coupling device for joining the syringe tip to the adaptor.
Patent CA-1308780-C (CA)
Title: Theophylline assay
Inventor: FOULDS NICOLA C
IPC: C12Q1/00
Filed: 1989-09-27
Granted: 1992-10-13
Abstract: ABSTACT     An electrochemical method of assay foe determining theophylline in a sample comprises contacting the sample with an alkaline phosphatase and with a phosphate ester which is a substrate for the alkaline phosphatase and from which an electroactive compound can be released by catalytic   activity   of   the   alkaline   phosphatase, electrochemically oxidising the electroactive compound, detecting  current  arising  from  the  electrochemical oxidation,  comparing  the  detected  current  with  that obtained from a standardised electrochemical oxidation, and evaluating the level of theophylline in the sample.