baber/WOPTO huggingface dataset:
Patent CA-2032317-C (CA)
Title: Nickel titanium alloy for surgical needles
Inventor: BENDEL LEE P
IPC: A61F2/00
Filed: 1990-12-14
Granted: 1995-01-31
Abstract: A needle alloy wherein the nickel content is between 6.3% and 9.5%; the chromium content is between 11.5% and 12.5% and the molybdenum content is between 3% and 4%.  In addition, tantalum and titanium should be present at a combined level of no more than 2.1%.  Favorable results from this alloy cause needles to have a greater than 400,000 psi ultimate tensile strength.
Patent CA-2035450-C (CA)
Title: Cargo container
Inventor: BOROW HENRY
IPC: B65D90/04
Filed: 1990-09-25
Granted: 1995-10-17
Abstract: A cargo container is adapted to transport liquids  and,    alternatively,   solid  cargo  which comprises a box-like housing (10) having rigid side walls   (11)   and  an  expansible  vessel   (1)   for containing  the  liquids  mounted  inside  the  box housing.   The expansible vessel (1) includes a rigid fixed bottom wall (2), a rigid top wall (3) extending parallel  to  the  bottom  wall,   and  a  flexible impermeable sleeve (5) forming side walls extending between the vessel bottom wall (2) and the top wall (3).  The top wall (3) is adapted for movement within the box housing (10) between a retracted position and an  expanded  position  and  to  be  raised  by  air pressure.    Latches (34) are provided to secure the vessel top wall (3) in the expanded position to the box housing side walls (11),  whereby the vessel can be  filled  with  liquids.   When  in  the  retracted position,   the top wall  (3) is close to the bottom wall  (2)  with  spacers  (6)  on  the bottom wall  to support the top wall in the retracted position and to thus define a dead space to receive the retracted sleeve (5).   There are cable and pulley devices (23) for providing parallelism to the top wall  (3) when the vessel (1) is being expanded and retracted.   The box housing side walls (11) include hinged lid panels (17,18) adapted to be folded down onto the top wall (3) of the expansible vessel (1) when the expansible vessel is retracted in order to serve as a floor for the solid bulk cargo.
Patent CA-2048798-C (CA)
Title: Antenna sunshield membrane
Inventor: BOGORAD ALEXANDER
IPC: H01Q1/28
Filed: 1991-08-08
Granted: 2001-05-29
Abstract: An RF-transparent sunshield membrane covers an antenna reflector such as a parabolic dish. The blanket includes a single dielectric sheet of polyimide film 1./2-mil thick. The surface of the film facing away from the reflector is coated with a transparent electrically conductive coating such as vapor-deposited indium-tin oxide. The surface of the film facing the reflector is reinforced by an adhesively attached polyester or glass mesh, which in turn is coated with a white paint. In a particular embodiment of the invention, polyurethane paint is used. In another embodiment of the invention, a layer of paint primer is applied to the mesh under a silicone paint, and the silicone paint is cured after application for several days at room temperature to enhance adhesion to the primer.
Patent CA-2055330-C (CA)
Title: Improved cyclone having circular trickle valve assembly
Inventor: TAMMERA ROBERT FRANK
IPC: B01J8/26
Filed: 1991-11-12
Granted: 2001-06-19
Abstract: Figure 3 illustrates, in part, an improved cyclone trickle valve assembly, which includes a cyclone that has a vertical dipleg (21). An annular ring (23) is horizontally disposed in the dipleg(21). A pair of cooperable clamshell doors (24) are positioned within the dipleg and are pivotably supported by the annular ring (23) for mutual opposite swinging movement between a closed position and an open position, thereby substantially preventing gases from progressing upwardly when the doors (24) are in a closed position and permitting solids to progress downwardly when the doors are in an open position.
Patent CA-2058669-C (CA)
Title: Laser beam scanner
Inventor: NAKAZAWA ATSUSHI
IPC: G06K7/10
Filed: 1991-12-31
Granted: 1998-11-17
Abstract: A laser beam scanner for use in a code reader or the like including more than two optical-path-length changing units inserted in the beam path to change the optical path length of the beam between the beam emitting unit and the scanning unit such that the distance from the scanner to the focal point of the beam can be changed.  The optical-path-length changing units are controlled by a control unit which receives an output from a distance measuring unit.  The distance measuring unit measures the distance from the laser beam scanner to the object to be scanned and indicates to the control unit to adjust the optical-path-length so that the focal point of the beam is at the same distance as the object to be scanned.
Patent CA-2062216-C (CA)
Inventor: HEIDEMANN ROLF
IPC: H04B10/67
Filed: 1992-03-03
Granted: 1998-05-19
Abstract: Optical receivers in optical communication systems should have a great dynamic range, since the receiver should be able to process optical signals whose levels may vary widely depending on the location of the receiver.            According to the invention, an optical amplifier, par-ticularly a fiber amplifier, is provided through which the incoming optical signal passes before entering the transducer proper and whose gain or attenuation factor us controlled in accordance with the electric output signal of the transducer.
Patent CA-2064133-C (CA)
Title: Three dimensional microstrip patch antenna
Inventor: FELLER WALTER
IPC: H01Q9/04
Filed: 1992-03-26
Granted: 1996-03-26
Abstract: An antenna assembly comprises a dome-like substrate with a ground plane layer on the interior surface of the substrate and a radiative patch on the outer surface of the substrate.  The cavity defined by the substrate is closed off by a base having a conductive layer that is connected to the ground plane layer, thereby to isolate the cavity and circuit elements that may be disposed therein.  Preferably the substrate has a polyhedral form and the radiative patch is a polygon having apex portions that extend down over the side surface of the substrate to enhance the sensitivity of the antenna at low elevations.
Patent CA-2065248-C (CA)
Title: Digital communication system for integrated services telephone installations
Inventor: ALLOUIS JACQUES
IPC: H04L12/64
Filed: 1991-07-10
Granted: 1995-09-26
Abstract: Integrated digital communication system for an integrated services time-division telephone installation interconnecting a plurality of input/output units (2, 3, 6, 7) of line or junction equipment type, for establishing communications between telephone sets or terminals (4, 5) by means of a control unit (12) and possibly one or more auxiliary units (13). This system comprises a serial bus and a parallel bus to which all the units are identically connected via interfaces (14). Each interface is able to make use of one or other of the buses for its transmissions, either in isochronous form by way of at least one isochronous channel which is then reserved for it from the parallel bus, or in asynchronous form on the paths then available from one or other of the buses whose availability this interface has temporarily obtained through a procedure of contention between interfaces. <IMAGE>
Patent CA-2067696-C (CA)
Title: Multiaxis rotational molding apparatus
Inventor: PAYNE LEROY
IPC: B29C39/04
Filed: 1992-04-30
Granted: 2003-11-18
Abstract: Multiaxis rotational molding apparatus includes a raw material supplying portion including a plurality of reservoirs connected independently with a mixing portion through conduits. A supporting portion includes a plurality of frame members disposed between upstanding end sections and rotatably supported thereon. A molding portion rotat-ably supported within the frame members includes at least one rotatable mold assembly with at least two separable mold sections. The mold sections include at least two optical fiber elements extending through the mold sections with one end of each optical fiber element terminating at a mold cavity forming surface of a mold section and an opposite end of each optical fiber element terminating at a remote second surface thereof. A signal generator disposed adjacent a remote surface end of one optical fiber element and a signal sensor disposed adjacent a re-mote surface end of another optical fiber element. A control portion includes circuitry transmitting signals from the sensor for comparison with programmable memory to control mold assembly frame rotators in a preselected multiaxis mold rotational profile. Also, a method of forming structures, particularly mold sections, with the above apparatus.
Patent CA-2071237-C (CA)
Title: Video theater system and copy preventive method
Inventor: KIMOTO TAKAYUKI
IPC: H04N7/08
Filed: 1992-06-15
Granted: 1998-04-21
Abstract: The present invention relates to a video theatre system. The system includes a video cassette which records at least a component video signal to which a copy preventive scheme has been applied.  A video cassette recorder is provided for reproducing the video cassette.  A tuner and an antenna provided for receiving a signal transmitted via a satellite.  A controller device controls the video cassette recorder and the tuner.  A unit is provided for releasing the copy preventive scheme.  A projector projects a video image from which the copy preventive scheme has been released.  The copy preventive scheme is applied while retaining the a synchronizing signal in the protected video signal.  The copy preventive scheme is applied at a point between dubbing of the master tape to the distribution tape after video conversion and the second video cassette recorder.  This copy preventive scheme is released by means of a device and circuit following a video cassette recorder used to reproduce the video signal in readiness for the projection thereof onto a screen.
Patent CA-2073366-C (CA)
Title: System and method for remote telephonic station actuation
Inventor: BRAV ALAN D
IPC: G08B25/01
Filed: 1992-07-08
Granted: 1996-04-09
Abstract: A method and apparatus for initially activating a remote telephonic device so as to establish communications with a central location.
Patent CA-2080273-C (CA)
Title: Vehicle-carrying frame
Inventor: HALPIN TERENCE
IPC: B60P3/07
Filed: 1992-10-09
Granted: 1997-07-01
Abstract: An exemplary frame for carrying two or more tiers of vehicles within a standard cargo-carrying container includes frame-supporting wheels rotatably supported in interposed relation between the sides of the lower rail of the frame for streamlined operation. Installing structure included on the upper and lower rail of the frame, such as an upper and lower plate each having a toothed edge, enable selective coupling of a vertical post member to the upper and lower rails either in a first suspended position in which longitudinal movement along the respective rails is possible or in a second suspended position locked against such movement. The exemplary frame also includes a storage mechanism where each vehicle-supporting wheel cradle is pivotable about a load-bearing hanger for securement in a storage position extending parallel to the sides of the frame. Also included is a mechanism for limiting longitudinal movement of the frame inside a container, which includes a head selectively extensible in a direction longitudinal of the frame toward an interior margin of the container. Preferably the head also pivots transversely for engagement of the head with a respective side wall of the container so that, in conjunction with a like mechanism operating on a separate frame, the ends of a number of collapsed frames may be securely held in transversely clamped condition within a single container.
Patent CA-2080705-C (CA)
Title: Substituted pyrimidines
Inventor: ELLINGBOE JOHN W
IPC: A61K31/522
Filed: 1992-10-16
Granted: 2002-12-03
Abstract: This invention relates to pyrrolo-, pyrido-, azepino-, and azocinopyrimidines of the general formula I   (see formula I) useful for treating hypertension or congestive heart failure and for preventing or treating restenosis following angioplasty, to pharmaceutical compositions, and to methods for production thereof.
Patent CA-2085847-C (CA)
Title: Autonomous precision weapon delivery using synthetic array radar
Inventor: NOWAKOWSKI MICHAEL V
IPC: F41G7/00
Filed: 1992-12-18
Granted: 1996-12-03
Abstract: A system and method that uses differential computation of position relative to aglobal positioning system (GPS) coordinate system and the computation of an optimum weapon flight path to guide a weapon to a non-moving fixed or relocatable target. The system comprises an airborne platform that uses a navigation subsystem that utilizes the GPS satellite system to provide the coordinate system and a synthetic array radar (SAR) to locate desirable targets. Targeting is done prior to weapon launch, the weapon there-fore requires only a navigation subsystem that also utilizes the GPS satellite system to provide the same coordinate system that the platform used, a warhead and a propulsion system (for powered weapons only). This results in a very inexpensive weapon with a launch and leave (autonomous) capability. The computational procedure used in the platform uses several radar measurements spaced many degrees apart. The accuracy is increased if more measurements are made. The computational algorithm uses the radar measurements to determine the point in a plane where the target is thought to be and the optimum flight path through that point. The weapon is flown along the optimum flight path and the impact with the ground results in a very good CEP when a sufficientnumber of radar measurements are made. The present invention provides fully autono-mous, all-weather, high precision weapon delivery while achieving a relatively low cost. High precision weapon guidance is provided by the unique differential guidance technique (if a sufficiently accurate and stable navigation system is used).
Patent CA-2089902-C (CA)
Title: Power tong with interchangeable jaws
Inventor: DLASK GEORGE
IPC: E21B19/16
Filed: 1993-02-19
Granted: 2001-02-27
Abstract: A power tong that is adaptable to smaller sues by installing an auxiliary camming assembly against the principle camming surface within the rotary. This auxiliary camming assembly preferably is seated within the neutral recess on the principle camming surface. An auxiliary cage plate carries auxiliary jaw sets.
Patent CA-2097772-C (CA)
Title: Internal baffle system for a multi-cylinder compressor
Inventor: FRY EMANUEL DUANE
IPC: F04B39/00
Filed: 1993-06-04
Granted: 1997-06-03
Abstract: A compressor assembly is disclosed including a compressor mechanism, mounted within a hermetically sealed housing.  A cylinder block contains a plurality of reciprocating pistons within compression chambers. The compression chambers include a discharge valve which permits compressed refrigerant to empty into the common discharge chamber.  A baffle system is included within the common discharge muffler chamber to eliminate pressure pulses and cross talk between discharge valve assemblies, thereby increasing the discharge valve opening speed and correspondingly increasing the compressor efficiency.
Patent CA-2097878-C (CA)
Title: Therapeutic agent for neutropenia
Inventor: WATANABE TATSUYA
IPC: A61K38/00
Filed: 1993-06-07
Granted: 2006-08-22
Abstract: A pharmaceutical composition has a therapeutically effective amount of a human nerve growth factor-2 and a pharmaceutically-acceptable carrier. The pharmaceutical compositions of the present invention act on the blood cells in the peripheral blood of animals to exhibit the proliferation promoting function. The pharmaceutical compositions of the present invention can therefore be effectively used for treatment of neutropenia due to various causes. Further, they are also effective for treatment of infection diseases and tumors.
Patent CA-2097924-C (CA)
Inventor: RINNHOFER JOHANN
IPC: C21C7/072
Filed: 1991-12-04
Granted: 1997-02-04
Abstract: A bottom or wall structure for a metallurgical vessel has a fireproof lining adjacent to an outer metallic envelope (10) of the vessel.  The fireproof lining has on the side opposite to the metallic envelope (10) a wear lining (26) that is gas permeable in at least one of its sections and that covers with its gas permeable section at least one gas rinsing device (14) provided with an associated gas inlet (12), whereas the gas rinsing device (14) is set into a gas-tight receptacle (18).
Patent CA-2100230-C (CA)
Inventor: BEAR CLAYTON
IPC: F16J15/34
Filed: 1993-07-09
Granted: 2002-04-02
Abstract: This invention relates to a lubricating film type gas seal having a stationary sealing ring (stator) with a radially extending sealing face and a rotating mating seal component (mating rotor) with a radially extending sealing face. The present seal has a reduced number of components and is greatly simplified from working seals described in prior art. The mating rotor is deliberately flexible, and hence it may distort (tilt) throughout an angular range during hydrostatic and hydrodynamic operation and is dependent on rotational speed, pressure, temperature and is also a function of its material and geometric properties. The stationary ring sealing face complies to and follows the angular distortion (tilting) of the mating rotor sealing face in a converging or diverging manner throughout the hydrostatic and hydrodynamic operational range. The flexibility of the stator is a function of its geometric and material properties. Mating rotor and stator flexibility is preferably matched (e.g. using Finite Element Analysis (FEA) techniques) to provide a system flexibility which produces optimum sealing performance. The mating rotor may possess multiple radial sealing surfaces as well as one or more cylindrical sealing surfaces. Initial mating rotor and/or stator seal face angular deflection may be introduced by applying stress and producing subsequent deformation of the structure by a mechanical means.
Patent CA-2102674-C (CA)
Title: Composite abrasive wheels
Inventor: BROCK MICHAEL P
IPC: C08G18/10
Filed: 1993-11-08
Granted: 1998-01-06
Abstract: A composite abrasive wheel with improved thermal properties is comprised of a fibrous substrate with abrasive particles adhered thereto by a crosslinked polyurethane binder comprising heterocyclic groups.  The heterocyclic structures, such as isocyanurate and/or oxazolidone rings, in the binder system improve the thermal properties required for a tough, durable abrasive wheel.
Patent CA-2108724-C (CA)
Inventor: DILLING SCOTT
IPC: B60G11/27
Filed: 1993-10-19
Granted: 1997-05-20
Abstract: A beam-type axle suspension system particularly applicable to trailers and which is subject to torsional forces includes an elongated beam, a pneumatic bellows located on the beam, a hanger bracket located at one end of the beam, means for rigidly connecting the beam to the axle and a resilient pivot connection for resiliently connecting the beam to the hanger bracket wherein the beam includes an orifice through which the axle is slid or pressed and rigidly attached thereto, thereby preventing the axle from assuming a cross-sectional shape substantially different from its unstressed shape due to the torsional forces imposed on the axle.  This beam-type axle suspension system also includes a resilient pivot connection for connecting the hanger bracket to the beam, thereby allowing the brake components to be attached to the beam instead of to the axle, and having the effect of eliminating stress risers on the axle due to weldinq the brake components to the axle.  This is achieved by the combination of a pivot connection having a resilient bushing with different deflection in the beamwise and hangerwise directions and the rigid axle-to-beam connection which maintains a constant distance between the axle and the brake components.
Patent CA-2119243-C (CA)
Title: Medical lavage apparatus and methods
Inventor: PALMER DARREL
IPC: A61M39/12
Filed: 1993-07-15
Granted: 2002-04-30
Abstract: A medical lavage apparatus (10) for body cavities comprising a housing (20) having parallel irrigation and aspiration cylin-ders (28, 32) with captive plungers (24, 26) extending in bores thereof from a first end and pairs of check-valves (102-106) posi-tioned in parallel, smaller, offset cylinders located at second ends such that reciprocal movement of the each plunger in each cyl-inder performs the function of a one-way pump. Novel jam-free dome shaped, slit check-valves (230) are disposed to be the pair of check-valves in the aspiration cylinder in one embodiment and in irrigation cylinders as well in other emobodiments. The dome shaped valves are described for use in other medical fluid control applications, as well. A septum (50) formed of intersect-ing semi-circular-in-cross-section baffles (58, 60) joins the adjacent outer ends of the irrigation and aspiration check-valve cylin-ders so as to allow full fluid streams flowing from these outer ends to flow together at an angle.
Patent CA-2119448-C (CA)
Title: Process for production of iron
Inventor: FLOYD JOHN MILLICE
IPC: C21B11/08
Filed: 1992-09-17
Granted: 1999-09-14
Abstract: A process for smelting iron-containing source material in a reactor containing a slag bath, comprises generating heating and reducing conditions in at least one reducing region of the bath by injection of fuel/reductant and oxygen-containing gas by at least one top submerged lance. The source material is fed to the reactor together with additional reductant and with flux at or adjacent the at least one reducing region so as to be subjected to smelting reduction, using coal as the additional reductant. The rates of injection of oxygen and fuel/reductant are controlled to achieve required, sufficient reducing conditions by providing the injected gas with an oxygen content of from about 40% to about 100% sufficient for a degree of combustion of the fuel/reductant of from about 40% to about 50%; and wherein CO and H2 generated by the smelting operation, as well as carbon dust carried out of the bath by combustion gases. are subjected to post-combustion in the reactor, enabling efficient heating of the bath whilst preventing re-oxidisation of the bath contents.
Patent CA-2119861-C (CA)
Inventor: BLANEY TED LEE
IPC: A61F13/58
Filed: 1992-10-20
Granted: 1998-10-06
Abstract: Disposable absorbent articles such as baby diapers or adult incontinent briefs provided with a refastenable adhesive fastening system. The adhesive fastening system preferably comprises a pair of tape tabs each having an adhesive surface which during use is adhered to a landing member having an adherence surface which may comprise only the backsheet that has no reinforcement for strength against tearing or may comprise a reinforced backsheet. The invention improves bond security while at the same time making the fastening system more easy to remove without tearing by careful optimization of the properties of the adhesive, the tape tab, and the landing member. In particular, it has been found that the adhesive fastening system should have a Standard Shear Hang Time of greater than about 1000 minutes per square inch. The surface characteristics, toughness, and elasticity modulus of the landing member is optimized while the adhesive agressiveness (quick-slick) of the adhesive is optimized with preferred low coating weights of the adhesive and low calculated caliper for the landing member so as to provide an adhesive fastening system that bonds easily, holds securely and is refastenable.
Patent CA-2122372-C (CA)
Inventor: BARIS HALIM
IPC: D01F6/62
Filed: 1993-08-17
Granted: 2003-03-25
Abstract: The dirt-repellent monofilament with a toughness of at least 36 cN/tex and an extension of under 44 % has a soiling index AI > 2 after five soiling and cleaning cycles. To manufacture the dirt-repellent monofilaments, a copolymer with a melting point of 255 to 275 ° C and consisting of alkenes and monofilament is added to a polymer melt of polyethylene terephthalate before extrusion. The dirt-repellent monofilament is advantageously used in the manufacture of cleaning filters for the dry section of a paper machine, i.e. paper machine fabric filters. It may also be used to produce fabrics for general use as technical fabrics which have to be cleaned in difficult conditions.