baber/WOPTO huggingface dataset:
Patent CA-2012272-C (CA)
Inventor: KUSTER HANS-WERNER
IPC: C03B27/004
Filed: 1990-03-15
Granted: 2000-09-26
Abstract: L'invention a pour objet un dispositif de bombage-trempe de feuilles de verre comportant un four (3), une station de bombage par pressage dans laquelle la feuille de verre est prise en charge par une bande flexible (10). Selon l'invention, les outils de bombage sont constitués par des formes pleines (6, 7) refroidies assurant une trempe par contact et la bande flexible est constituée par un tissu ou tricot en fibres réfractaires dont la résistance thermique, mesurée perpendiculairement au plan de la bande, est comprise entre 0,25 10 -3 et 5 10 -3 m2.K.W-1. L'invention permet le bombage et la trempe par contact de feuilles de verre de moins de 5 mm d'épaisseur.
Patent CA-2012605-C (CA)
Inventor: MANDERS ERNEST K
IPC: A61B19/00
Filed: 1990-03-20
Granted: 1993-12-07
Abstract: ABSTRACT OF THE DISCLOSURE      A tissue expander for expanding hair to cover temple bald recesses includes a base having a central arm and a pair of end arms separated by a pair of concave recesses and an expandable cover joined to the edge of the base.
Patent CA-2021338-C (CA)
Title: Imidazoquinolone derivatives
Inventor: SUZUKI FUMIO
IPC: A61P37/00
Filed: 1990-07-17
Granted: 1996-07-16
Abstract: Novel imidazoquinolone derivative represented by formula (I);                   (I) wherein R1 represents lower alkyl or -(CH2)mCO-R3 where R3 represents hydrogen, lower alkyl, hydroxy or lower alkoxy;  and m is an integer of 1 to 3; R2 represents lower alkyl; or a pharmaceutically acceptable salt thereof.
Patent CA-2026378-C (CA)
Title: Liquid level detection
Inventor: FRYER CLAYTON D
IPC: E21B47/04
Filed: 1990-09-27
Granted: 1996-07-16
Abstract: A method for detecting the presence of a liquid level at a monitor point along the depth of a borehole utilizes a diaphragm pressure switch for sensing the pressure of a captive air column in a measurement tube extending from the pressure switch to a predetermined point below the monitor point.   In use a rising liquid level in the borehole seals an open lower end of the measurement tube from the earth atmosphere and allows the rising liquid level to compress the captive air column.  In a preferred embodiment a visual signal is activated by the pressure switch when the liquid level in the borehole reaches the monitor point.
Patent CA-2027630-C (CA)
Title: Protein gel ophthalmic vehicle
Inventor: CHASTAING GILLES
IPC: A61K31/535
Filed: 1990-10-15
Granted: 2001-04-24
Abstract: The present invention relates to a liquid ophthalmic composition, characterized in that it comprises at least one active principle and a sulphated polysaccharide or sulphated polysaccharide derivative in aqueous solution which undergoes a liquid-gel-phase transition on interaction of the said sulphated polysaccharide or one of its derivatives with the proteins of the lachrymal fluid:      The present invention also relates to a process for preparing the said compositions.
Patent CA-2033023-C (CA)
Inventor: OOSAWA TAKAFUSA
IPC: F16F13/00
Filed: 1990-12-21
Granted: 1994-08-30
Abstract: ABSTRACT OF THE DISCLOSURE       A rotary damper has a hollow cylinder having upper and lower flanges to serve as a pivot.  One arm is tightly fitted on one of the upper and lower flanges and extends essentially in tangential direction of the associated flange.  The other arm is pivotal with rotation of the outer pivot and extends essentially in tangential direction of outer pivot.  A coil spring is wound around the outer periphery of the hollow cylinder.  The ends of the coil spring are connected to the arms for exerting spring force in a direction opposite the pivoting direction of the arms.
Patent CA-2039496-C (CA)
Title: Information transfer method, information transfer apparatus, and its driving method
Inventor: KAWAGISHI HIDEYUKI
IPC: G11C27/04
Filed: 1991-04-02
Granted: 2000-01-11
Abstract: An information transfer method comprises connecting a plurality of MIM devices comprising a monomolecular film of an organic compound or built-up films thereof as the insulating layer and having the switching memory function, and transferring the information on the side nearer to the oscillation source of the information every second bit or every second line or every second picture face successively to the side farther from the oscillation source. An information transfer apparatus comprises using an array or a plurality of arrays of circuits with devices having rectifiability connected in series with the rectifying directions being aligned, connecting one terminal of a two-terminal circuit having an MIM device having switching memory function to each connecting point A, connecting the other terminal of every odd number to provide a second terminal, and having a voltage application means capable of taking a disconnected state relative to the connecting point A.
Patent CA-2042859-C (CA)
Title: Stabiliser mixtures for elastomers
Inventor: KNOBLOCH GERRIT
IPC: C08K5/37
Filed: 1991-05-17
Granted: 2002-11-05
Abstract: A composition Comprising an elastomer and a stabiliser mixture consisting of a) at least one phenol of formula   wherein R a and R b are each independently of the other C1-C4alkyl and R c is C6-C12alkyl, and b) at least one phenol of formula II      wherein n is 0 to 3, R1 and R2 are each independently of the other C1-C12alkyl or -CH2SR3, R3 is C8-C18alkyl, phenyl or benzyl, and R4 is hydrogen or methyl.
Patent CA-2044923-C (CA)
Title: Process for preparing 4-amino-1-hydroxy-butylidene-1, 1-bisphosphonic acid (abp) or salts thereof
Inventor: KIECZYKOWSKI GERARD R
IPC: C07F9/38
Filed: 1991-06-18
Granted: 1996-06-18
Abstract: An improved process is described for the preparation of 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid (ABP)or salts thereof which comprises:    (a)  reacting 4-aminobutyric acid with a mixture of phosphorous acid and PC13 in the presence of methanesulfonic acid;    (b)  contacting the mixture from Step (a) with an aqueous hydrolysis mixture, wherein the pH is maintained in the range of 4 to 10 during the contacting; and (c)  recovering said 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid or salts thereof.
Patent CA-2046286-C (CA)
Title: Method of forming an optical fibre coupler and a coupler so formed
Inventor: MORTIMORE DAVID BRYAN
IPC: G02B6/28
Filed: 1990-03-20
Granted: 1997-12-02
Abstract: Six secondary optical fibres (20) are located about and parallel to a central op tical fibre (21) by a capillary tube (22) to form a fibre bundle which is then formed into a fused, tapered coupler in which the tapering is stopped when the proportions of light coupled out of the central fibre (21) at 1.3 and 1.53 .mu.m are first equa l. The fusion process can provide sufficient fusion between the central fibre and each secondary fibre to provide a 1 to (n + 1) cou pler where n is the number of secondary fibres. This method provides a coupler which is wavelength-flattened between 1.3 and 1.53 .mu .m using similar fibres.
Patent CA-2047989-C (CA)
Inventor: ARTHUR SAMUEL DAVID
IPC: C08J9/28
Filed: 1991-07-26
Granted: 2004-09-21
Abstract: The present invention is directed to an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurea formed in situ by reaction of isocyanate-substituted acyl chloride and a diamine-treated microporous substrate.
Patent CA-2048914-C (CA)
Title: Removable media injection fitting
Inventor: BORGSTROM ALAN D
IPC: H01R13/53
Filed: 1991-08-09
Granted: 1995-07-04
Abstract: A media injection fitting for the insertion or removal of a media from the interior of a high voltage separable connector component having an access to the interior of the component.  The fitting is comprised of a central body portion having a passage from an exterior side surface to the bore of a pin extending beyond the fitting for insertion into the bore of the access. A skirt extends  from one end of  said body portion so proportioned and configured as to be positionable upon the outer surface of the component access with a locking means on the interior surface of said skirt to fix the fitting upon the access. A pulling eye extends from the second end of the body portion to permit installation and removal of the fitting from the surface of the access.    A  coupling on  the  exterior  side  surface connected  to  the  passage  permits  the  insertion  or removal of a media from the component or the venting of gases contained therein.
Patent CA-2049037-C (CA)
Inventor: MUELLER HEINZ
IPC: C09K17/00
Filed: 1990-03-03
Granted: 1999-05-04
Abstract: The invention relates to aqueous preparations of acid-catalyzed melamine resins and/or urea-formaldehyde condensates which contain an addition of zeolite NaA and/or hydroxysodalite to increase their usefulness.  The preparations in question are particularly suitable for use in the stabilization of rock and/or plugging of cavities,  for example in tunneling and mining.  Accordingly, the inventions also relates to a process for stabilizing rock, for example in tunneling and mining, by injection of corresponding preparations together with an acidic catalyst.
Patent CA-2050112-C (CA)
Title: Roll-to-roll continuous casting arrangement
Inventor: BIRAT JEAN-PIERRE
IPC: B22D11/06
Filed: 1991-08-28
Granted: 1999-02-23
Abstract: Apparatus for continuous casting between twin rolls 1, 2 with parallel axes, defining between them and with two fixed lateral walls 3 a casting space for a molten metal, each lateral wall comprising at least one lateral part 6, placed against the plane end front surface of one of the rolls, and consisting of a disc portion with an external diameter equal to that of the said adjacent roll, and a central part 12, opposite the said casting space, made from an insulating refractory material. 
<??>The said disc portion is produced from a material which has characteristics of thermal conductivity and mechanical strength which are greater than those of the said refractory material and is a frustoconical disc portion whose face with the greatest radius of curvature is located towards the roll, and whose frustoconical surface is in contact with the insulating material of the said central part. 
<??>The invention applies to the continuous casting of thin metal products, notably from steel. 
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Patent CA-2051614-C (CA)
Inventor: GAUTHIER MICHEL
IPC: H01M10/0565
Filed: 1991-09-17
Granted: 1996-01-23
Abstract: Self-protective current collector with sideways collection, for thin-film electrochemical generator with polymeric solid electrolyte, utilising electrodes operating with respect to alkaline or alkaline-earth ions. The collector includes an insulating plastic backing film of between approximately 1 and 30 microns thickness, the film being chosen for its compatibility with the chemical environment of the generator and treated as needed for adhesion to at least one of its faces, a conductive metal coating with a thickness of less than approximately 10 microns, adhering to at least one face of the insulating backing film, chosen for its compatibility with the corresponding electrode material of the generator, and characterised in that its conductive surface is divided into a multitude of distinct adjacent zones, each zone being electrically isolated by non-conductive borders with the exception of at least one conductive bridge of small cross-section and linked to a common conductive side margin allowing sideways collection of the set of distinct zones. The nature and electrical resistance of the conductive bridges are chosen so as to allow, on the one hand, the passage of currents corresponding to the maximum currents provided for each of the individual collection zones of the anticipated generator and, on the other hand, to limit, in the case of an accidental short-circuit inside a zone, the maximum current received by this zone coming from the set of zones of the generator. Production process for this collector, collector-electrode assembly and generator using the collector or the collector-electrode assembly. <IMAGE>
Patent CA-2060582-C (CA)
Title: Three-dimensional strain monitor for rock boreholes
Inventor: HERGET GERHARD H
IPC: G01B5/30
Filed: 1992-02-03
Granted: 1996-02-20
Abstract: The invention relates to a device for monitoring strain or deformation within rock boreholes in three-dimension. The device comprises in general a vibrating wire strain monitor for monitoring strain or deformation in an axial direction with respect to the borehole axis interposed between two other vibrating wire string monitors which monitor strain or deformation in radial directions with respect to the borehole axis. The radial vibrating wire strain monitors each have elements by which they may be anchored within a borehole. Together, the three vibrating wire strain monitors monitor strain or deformation in three orthogonal directions within a borehole. The combination allows the axial vibrating wire strain monitor to utilize the radial vibrating wire strain monitor's anchors thereby eliminating their requirement to provide separate anchoring means therefor.
Patent CA-2065283-C (CA)
Title: Image cancelling mixer circuit on an integrated circuit chip
Inventor: ATHERLY DON H
IPC: H04B1/10
Filed: 1990-07-30
Granted: 2001-07-10
Abstract: An IF mixer circuit (10) in a receiver implemented in integrated circuits employs a pair of doubly balance mixers (22, 46), one injected with a local oscillator reference signal in phase while the quadrature phase of the reference signal is injected into the second mixer. A phase shift circuit (42) adds another 90° phase shift to the output of the second mixer (46), and the in-phase and out-of-phase signals are applied to a summing circuit (40) to attenuate unwanted mixer products and reinforce the desired IF sig-nal. The balanced elements of the 90° phase shift circuit (42) employ a transistor (61) with equal emitter and collector resistances, a diode-connected transistor (63) in series with the collector load resistance (65), and a collector-to-base capacitor (67), which pro-vide a constant-amplitude phase shift in a unity gain structure independent of current, to produce a precise 90° phase shift. Emit-ter current is adjustable to compensate for production variation in the absolute value of the fixed resistance, i.e., by varying the current in the transistor and diode, the dynamic resistance offsets the fixed resistance variation.
Patent CA-2066800-C (CA)
Inventor: UNDERBRINK JOHN M
IPC: F16B13/04
Filed: 1992-04-22
Granted: 2003-01-21
Abstract: Disclosed is an expansible fastening device (10) for placement in a hole preformed in a base member for use in attaching a component part to the base using a conventional nut (24) and bolt (26). The fastening device includes a fastener body (12) having two body sections (28a and 28b). The body sections when positioned together form a central cavity (30) within the fastener body which encloses and retains the nut and a wedge (14). Each longitudinal section includes a fin (16) which extends longitudinally and projects radially outward from the central region of each body section. Further, each body section includes primary and secondary teeth (18 and 20) which extend circumferentially about the outer surface of the sections. In operation the bolt is engaged with the nut and rotated, pushing the wedge from the fastening device. As the wedge is driven away from the nut, the teeth and Pins are driven into the base member.
Patent CA-2067678-C (CA)
Title: Flame retardant elastomeric composition
Inventor: TOPORCER LOUIS H
IPC: C08L83/04
Filed: 1992-04-30
Granted: 1995-08-08
Abstract: Silicone compositions which, when exposed to atmospheric moisture at room temperature cure to form a flame retardant elas-tomer comprising (a) an organopolysiloxane having terminal hydroxyl groups, (b) a cross-linking agent having an average of at least three functional groups linked to a silicon atom per mole-cule, in which the functional groups are selected from the group consisting of hydrocarbonoxy groups, amine groups, aminoxy groups, oxime groups and mixtures thereof, (c) a condensation catalyst,(d) platinum metal or compound thereof, (e) carbon black, (f) alumina hydrate and optionally (g) a filler.     The resultant flame retardant silicon elastomers are useful as insulation for electrical equipment, as encapsulants and as sealants where flame retardancy is necessary.
Patent CA-2074676-C (CA)
Title: Retractable awning for slide-out unit on mobile home, recreational vehicle, or the like
Inventor: FALUDY THOMAS G
IPC: B60P3/37
Filed: 1992-07-27
Granted: 1995-03-28
Abstract: A  retractable  awning  for  use  on  mobile  homes, recreational vehicles or the like having slide-out units as a part thereof includes an awning sheet that is secured along an inner edge to the side of the mobile home with the opposite edge being secured to a torsionally biased roll bar rotatably disposed on the outer ends of support arms pivotally mounted to the outer face of the slide-out unit. A flexible tie-down strap secures the awning in an extended position with the support arms projecting substantially horizontally away from the outer wall, and upon release of the tie-down strap, the awning automatically retracts to a position immediately adjacent to the outer wall of the slide-out unit. The awning sheet always overlies the top wall of the slide-out unit when the slide-out unit is extended and regardless of whether or not the awning is extended or retracted.
Patent CA-2078837-C (CA)
Inventor: HUANG TZONG-CHYUAN
IPC: B60R25/022
Filed: 1992-09-22
Granted: 1998-06-16
Abstract: An axial pin tumbler lock includes a tubular housing  in which  a  fixed  hollow  cylinder  and  a rotatable hollow  cylinder  are  coaxially mounted.          Several axial bores are formed in an end surface of the fixed hollow cylinder.  The rotatable hollow cylinder also has several axial bores formed therethrough.          Several tumbler units are received in the bores of the cylinders.   Each of the tumbler units consists of a first tumbler pin, a second tumbler pin and a tumbler spring.  A locking bar extends through the cylinders.      A guide pin is mounted securely on the rotatable hollow cylinder and received slidably in the axially extending slide  slot  of  the  locking  bar  so  as  to  enable synchronous rotation and relative sliding movement of the rotatable hollow cylinder and the locking bar.  The engagement of the guide pin in the slide slot retains the locking bar on the  lock.   A resilient element biases the locking bar to an unlocked position. A spring-loaded retaining element is disposed on the fixed hollow cylinder.  The outer end of the locking bar can be pushed to move inward until the retaining element engages with the positioning hole of the locking bar.  At this time, the locking bar is located at a locked position.
Patent CA-2082622-C (CA)
Title: Electrosurgical electrode
Inventor: BUELNA TERRENCE J
IPC: A61B18/12
Filed: 1991-04-25
Granted: 2001-05-01
Abstract: In accordance with an embodiment of the present invention an improvement is set forth in an electcosurgical electrode having a conductor (20) From which a radio frequency electrical signal is generated which signal sparks to and performs a surgical procedure upon the tissue adjacent the conductor (20) and is received by a receiver: The improvement comprises a dielectric sheath (22) surrounding the conductor (20) in the region where the surgical procedure is being performed, the sheath (22) having a slit (24) extending longitudinally along it in the region exposing only a portion of the lateral surface (26) of the conductor (20).
Patent CA-2082945-C (CA)
Title: Method of grinding the surfaces of cutting blades and grinding wheel therefor
Inventor: PEDERSON HARRY
IPC: B24B3/02
Filed: 1991-03-11
Granted: 1995-11-07
Abstract: A grinding process and wheel are disclosed wherein any or all surfaces of a cutting blade may be generated in a continuous grinding operation utilizing a single grinding wheel having a simple profile.  A grinding wheel having a grinding profile comprising an inner conical surface and an adjacent outer narrow substantially flat surface is provided.  The inner conical surface rough grinds to generate a roughed blade surface and the adjacent outer narrow substantially flat surface finish grinds the roughed surface to generate a finished blade surface.  Computer numerical control (CNC) is utilized to control the relative movement of the grinding wheel and cutting blade along or about a plurality of axes.  Inner and outer arcuate grinding surfaces may also be provided for rough grinding.
Patent CA-2084201-C (CA)
Title: Remote tracking system particularly for moving picture cameras and method
Inventor: PARKER JEFFREY L
IPC: G01B11/26
Filed: 1991-05-31
Granted: 1997-11-11
Abstract: The system includes a mobile remote unit (12) sensitive to infrared (IR) signals (13) transmitted by a base or stationary unit (11) and an IR transmitter (41-43) which is placed behind a rotating lens (82) whose position at any time is known with precision resulting in an elongated IR signal (13) that is being "scanned" across an area in a direction substantially perpendicular to the elongated direction of the beam (13). The remote unit (12) detects when the peak strength of the signal (13) occurs and provides this data via an RF signal (14) to the base unit (11) wherein the exact effective angle between the axis of the IR signal (13) and the remote unit (12) creates an error signal used by the base unit (11) to position the camera (15) mounted thereon. Transmitters (56-58) for TILT and two PAN positions, PAN 1 and PAN 2, are used to include range calculations for ZOOM functions. Command circuitry to override the automatic tracking function is provided in each of the units (11, 12).
Patent CA-2084880-C (CA)
Title: Method of forming the teeth of longitudinally curved tooth gears
Inventor: KRENZER THEODORE J
IPC: B24B49/00
Filed: 1991-06-19
Granted: 1995-04-25
Abstract: A process of forming the longitudinally curved teeth of bevel and hypoid gears is disclosed. A dish-shaped tool (2) is oscil-lated relative to a work gear (12) with the oscillating causing the dish-shaped tool (2) to swing through an arc (7) corresponding to the longitudinally curved teeth of the work gear (12). The inventive process comprises additional motions included in a timed re-lationship with the oscillating motion of the dish-shaped tool (2). The included motions are functions of the phase angle of the oscillating dish-shaped tool (2) and the timed relationships are defined by a power series. The process enables improved control of contact patterns of mating gear teeth. The process may be computer numerically controlled. The process is applicable to cut-ting or grinding processes utilizing, respectively, dish-shaped cutting tools or dish-shaped grinding wheels.
Patent CA-2086855-C (CA)
Title: Compressor device for controlling oil level in two-stage high dome compressor
Inventor: LINDSTROM ROBERT A
IPC: F04B39/02
Filed: 1993-01-07
Granted: 1996-06-11
Abstract: A multi-stage compressor assembly including an arrangement for controlling the oil level having first and second capillary tubes.  First capillary tube connects between the second stage high pressure housing at a level above the normal oil sump level to the first stage low pressure housing.  The second capillary tube connects from the first stage housing at a point above the normal sump level to a point on the second stage suction tube.  The oil level is automatically self compensating by the location of the capillary tube inlets and by differential housing pressure urging oil migration through the capillary tubes.