baber/WOPTO huggingface dataset:
Patent CA-2093986-C (CA)
Title: Optical parallel-serial converter and optical serial-parallel converter
Inventor: BOETTLE DIETRICH
IPC: H04J14/08
Filed: 1993-04-14
Granted: 2000-10-03
Abstract: The high transmission capacity of an optical transmission path (about 200,000 km Mbit/s) is used, among others, to couple several data sources and data sinks to an optical waveguide. The task of the invention is to ensure the coupling in and out of several data streams to or from any path section of a (predetermined) optical transmission path. This task is fulfilled by a device for the parallel-serial conversion, and a device for the serial-parallel conversion of the data streams to the optical transmission path. The coupling in and out of the individual data streams is performed by optical modulators or optical expanders, which are incorporated into the optical transmission path. Several data streams are parallel-serial converted by means of additional incorporated optical time delay elements, which ensure the bit interlacing of the data streams (bit-interleaved).
Patent CA-2094554-C (CA)
Title: Polymethylene polyphenyl polyisocyanate based prepolymers
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/10
Filed: 1993-04-21
Granted: 2001-12-25
Abstract: This invention is a liquid polyisocyanate prepolymer comprising the reaction product of an organic polyisocyanate blend and a polyoxyalkylene polyol, where polyisocyanate blend is A) a diphenylmethane diisocyanate comprising from 50 weight percent to 95 weight percent 4,4'-diphenylmethane diisocyanate, from 5 weight percent to 50 weight percent 2,4'-diphenylmethane diisocyanate, and less than 10 weight percent 2,2'-diphenylmethane diisocyanate, said weight percentages based on the total weight of the ingredients in A);      B) a polymethylene polyphenyl polyisocyanate comprising from 30 weight percent to 70 weight percent diphenylmethane diisocyanate, the remainder comprising polymethylene polyphenyl polyisocyanates having functionalities greater than two, said weight percentages based on the total weight of the ingredients in B);      C) and optionally a uretonimine-carbodiimide modified diisocyanate comprising from l0 weight percent to 35 weight percent uretonimine-carbodiimide species, the remainder comprising essentially pure 4,4'-diphenylmethane diisocyanate, said weight percentages based on the weight of the ingredients in C); and the polyoxyalkylene polyol has a molecular weight ranging from 700 to 10,000 and an average functionality from 1.6 to about 3 and reacted with the polyisocyanate blend at temperatures less than 80°C. The liquid polyisocyanate prepolymer has an overall NCO content of from 10 weight percent to 31 weight percent. The prepolymer is used to make polyurethane foams advantageously blown only with water.
Patent CA-2101237-C (CA)
Title: Apparatus comprising means for mass spectrometry
Inventor: DOWNEY STEPHEN WARD
IPC: H01J49/16
Filed: 1993-07-23
Granted: 1999-04-13
Abstract: Disclosed is an apparatus which can serve to detect, count, size discriminate and analyze the chemical composition of particles in the air or process gases. In a preferred embodiment, the particles enter via a capillary (4 or 5) into a differentially pumped chamber (6). A pulsed laser (10) which is continuously fired is focused at an opening in the chamber. When the particles come into the path of the laser beam, the particles are fragmented and ionized. A dual time of flight massspectrum is produced, recorded with an oscilloscope (16) and analyzed with a computer (22). The mass spectrum information enables the determination of the chemical nature and concentration of the species of the particles, the particle size and the elemental composition of airborne particles in real time. Once these parameters are determined the source of the particles can be determined and eliminated from the environment and process. Thus, the inventive apparatus is advantageouslyused in conjunction with a facility i.e., a semiconductor manufacturing facility, that requires ultra-clean conditions.
Patent CA-2105350-C (CA)
Inventor: KANOU HIROSHI
IPC: F16D9/06
Filed: 1993-09-01
Granted: 1998-07-07
Abstract: A coupling mechanism for a compressor of an automotive air conditioning system which is equipped with a safety mechanism for preventing damage to the engine due to compressor failure or malfunction. A front end plate with a tubular extension which extends in the direction parallel to the axis of rotation of the drive shaft is attached to one end of the compressor housing. A pulley is rotatably supported on said extension by means of a bearing. At its terminal end, the drive shaft is connected to an armature which includes a centrally located hole through which the drive shaft extends. The armature is connected by means of a bolt and a nut and rotates with the drive shaft. The pulley transmits rotational motion from the engine to the drive shaft through an armature plate by means of coupling plate members which are interposed between the pulley and the armature plate. Coupling plate members include breakaway portionswhich may be easily broken if excessive torque is applied due to compressor failure or malfunction. If the compressor failure or malfunction occurs and the drive shaft stops rotating, damage to the engine is avoided because the excessive torque applied by the pulley causes the breakaway portions of the coupling plate members to break and allows the pulley and coupling members to be disconnected from each other. This allows each to continue to rotate independently without contacting or biting each other.
Patent CA-2106572-C (CA)
Title: Wood preservative applicator
Inventor: CHIN CHEN-WOO
IPC: B27K3/14
Filed: 1992-03-17
Granted: 2001-02-13
Abstract: The invention described is a wood preservative applicator or bandage for wooden structures such as wooden poles which wraps around the pole at ground level. The bandage comprises a inert matrix 2 which has a surface for contact with the wooden structure and has a plurality of reservoirs 3 formed therein. The reservoirs communicate with the surface of the matrix and contain a solid tablet of wood preservative chemical for supply to the matrix surface. The plurality of individual reservoirs are arranged on the flexible matrix to enable the matrix to be shaped to conform to the contour of the wooden structure. The bandage is also provided with a fastening means for securing the matrix in position on the wooden structure. The fastening means is a line of indentations formed above and below the plurality of individual reservoirs. The indentations form complementing male and female members in the matrix such that when the bandage is applied to a wooden structure, the male members of one end of the bandage co-operate with the overlapping female members at the other end of the bandage to secure the bandage to the wooden structure.
Patent CA-2109247-C (CA)
Inventor: DUVAL MICHEL
IPC: H01M10/0565
Filed: 1993-10-26
Granted: 2001-07-03
Abstract: In an electrochemical cell constituted by lamination of positive and negative electrodes, of a solid polymer electrolyte as well as of a metallic collector, in which the various layers are offset with respect to one another in order to make it possible to collect the current laterally, a strip of insulating material is interposed so as to prevent the free edge of the collector, which faces the electrolyte layer and/or the negative electrode layer, from piercing the electrolyte layer and/or short-circuiting the two electrodes. The disclosure also describes the preparation of such an electrochemical cell. <IMAGE>
Patent CA-2113060-C (CA)
Inventor: OHTANI OSAMU
IPC: H01B3/12
Filed: 1994-01-07
Granted: 2000-10-24
Abstract: To provide a non-reducing dielectric ceramic composition for multilayer ceramic capacitor, in which decrease of specific resistance and shortening of life time do not occur due to reduction of dielectric ceramic composition even when it is fired in neutral or reducing atmosphere and capacitance does not vary extensively due to temperature change, the non-reducing dielectric ceramic composition according to the present, invention comprises 86.32 to 97.64 mols of BaTiO3, 0.01 to 10.00 mols of Y2O3, 0.01 to 10.00 mols of MgO, and 0.001 to 0.200 mol of V2O5.      An additive containing 0.01 to 1.0 mol% of at least one or more of MnO, Cr2O3, or Co2O3, and further, an additive containing 0. 5 to 10. 0 mol% of {BaA, Ca(1-A)}SiO3 (where O ~A~ 1) may be added.
Patent CA-2113841-C (CA)
Inventor: ENGELKE ROBERT M
IPC: H04M11/04
Filed: 1993-05-19
Granted: 2003-02-11
Abstract: A telecommunication device for the deaf (12, 14, 16, 20, 22, 24, 26, 28) includes a self-identification sequence which auto-matically commences upon the initiation of communication with the device. The self-identification sequence consists of a series of characters which may be separated by pauses and the device listens during the pauses to see if TDD communication has been established. The purpose of the character string is so that a receiving station can identify, with a low rate of error, a calling TDD and therefore switch the incoming call to a TDD equipped operator. This capability is particularly useful for emergency service operators (911 services) which must be able to handle incoming TDD calls with a maximun of efficiency and a minimum of error.
Patent CA-2119373-C (CA)
Inventor: STEINKE THOMAS A
IPC: A61M29/02
Filed: 1993-07-21
Granted: 1999-01-19
Abstract: An improved balloon catheter (1) is disclosed which is comprised of two jacketed spring coils (20, 22) placed end-to-end and joined by a linking element (24) which contains a lumen communicating betwee n the inflation lumens (30) formed by the two spring coils (20, 22). A side port entry (12) to a guidewire lumen (10), which e xtends through the distal coil (22) to the distal end (14) of the catheter (1), is located in the transition region (24) formed by the linking element. The linking element (24) may include two polyimide tubes (32) or may be a multilumen insert. The catheter (1) is stiffened by a core wire (26) which is bonded directly to the spring coils (20, 22). A catheter comprised of a single spring c oil with a side port entry in the coil is also disclosed, and a method and apparatus for crimping the coil to create the entry.
Patent CA-2120870-C (CA)
Title: Connecteur electrique et plus particulierement connecteur de charge
Inventor: CRESTIN JOSEPH
IPC: H01R12/70
Filed: 1994-04-08
Granted: 1998-07-21
Abstract: L'invention concerne un dispositif de connexion électrique comportant deux éléments de connexion dont l'un est mobile et qui sont aménagés pour pouvoir s'accoupler et se désaccoupler entre eux par rotation de l'élément mobile dans l'autre élément et mettre en connexion, ou réciproquement séparer, des contacts antagonistes (3,3'; 4,4') dont ils sont pourvus. L'invention est notamment remarquable en ce que le dispositif constitue un connecteur, l'élément mobile étant une prise mobile (1') et l'autre élément un socle (2) de connecteur, et en ce que le socle est pourvu d'un élément de protection (5) qui cache au repos les contacts (3,3') dudit socle et qui est monté rotatif dans celui-ci de manière à pouvoir être entraîné en rotation par la prise mobile au cours de l'accouplement, tandis que ledit élément de protection (5) comporte deux volets (8,9) qui peuvent coulisser l'un par rapport à l'autre et qui sont pourvus chacun d'au moins autant d'ajours (10,10'; 11,11') qu'il y a de contacts dans le socle et qui sont disposés de la même manière, lesdits volets étant positionnés au repos l'un par rapport à l'autre de façon que lesdits ajours soient décalés entre eux et des moyens étant prévus pour entraîner le coulissement des volets l'un par rapport à l'autre au cours de l'accouplement.
Patent CA-2120963-C (CA)
Title: Mixed surfactant system as a durable fabric coating
Inventor: NOHR RONALD SINCLAIR
IPC: D06M15/647
Filed: 1994-04-11
Granted: 2007-06-26
Abstract: A composition for increasing the resistance to removal by an aqueous liquid of surfactants from a polymeric fabric including fibers having a plurality of fiber-fiber interstices at junctions of two or more fibers. The composition includes water, a first surfactant, and a second surfactant which is structurally dissimilar to and less soluble in water than the first surfactant. One of the first and second surfactants has a solubility in water at 20°C no greater than about 5 percent by weight, based on the weight of the water. In certain embodiments, the first and second surfactants are adapted to preferentially locate in the fiber--fiber interstices and resist removal therefrom by aqueous liquid. The preferential location of the surfactants in the fiber-fiber interstices of the fabric is accomplished by working the fabric after application of the composition to the fabric. The resulting fabric is wettable and demonstrates increased resistance to removal of surfactants by an aqueous liquid, compared to similar fabrics which have not been worked. The wettable fabrics are especially suited for incorporation in such disposable absorbent articles as diapers, feminine care products, such as sanitary napkins and tampons, incontinent care products, training pants, wipes, and the like.
Patent CA-2121150-C (CA)
Title: Golf club head
Inventor: LONG CLAY
IPC: A63B53/04
Filed: 1994-04-13
Granted: 1997-02-25
Abstract: A golf club having weight members  located at the toe and the hosel of a cavity back club head.   The toe weight and hosel weight each have a center of mass which is located above a horizontal line drawn through the center of gravity of the club head when the club head is lying at address.  In one preferred embodiment the toe weight extends rearwardly from the toe rim of the club head and rearward of a plane containing the rear edges of the  club  head  to  increase  the  back  weighting  and therefore the dynamic loft of the club head.   The hosel weight extends outwardly from the hosel and is located anywhere within a 90° segment of the outer periphery of the hosel.   At one extreme position,  the hosel weight extends outwardly in a plane which is generally parallel to  the  leading  edge of  the  club head and at  another extreme position the hosel weight extends rearwardly and generally at right angles to the leading edge of the club head.
Patent CA-2122181-C (CA)
Inventor: ZOPPI GIANNI
IPC: C25C1/08
Filed: 1994-04-26
Granted: 2007-01-09
Abstract: Process for producing metals Me selected from zinc, nickel, cadmium and cobalt, characterized in that the corresponding water-soluble amino complex Me(NH3)n Cl m is formed, and such a complex, in an aqueous solution, is submitted to electrolysis in a cell without separation means between the anodic and the cathodic compartments.
Patent CA-2122616-C (CA)
Inventor: GSTREIN HIPPOLIT
IPC: B32B5/26
Filed: 1992-11-19
Granted: 1998-02-03
Abstract: A base fabric for press felts and a press felt incorporating that base fabric which includes an assembly of three or more separately woven fabric layers (10, 20, 30). Each of the woven fabric layers making up the base fabric assembly is a single or multi-layer fabric, and they may be of the same or different weave patterns. The three or more fabric layers (10, 20, 30) are assembled, one above the other and needled together with at least one batt layer on the papermaking surface of the felt. Preferably, the yarns on the top surface of the top fabric (10) will, by virtue of the weave of the fabric, have long floats in the machine and/or cross machine direction to provide good paper web support. The bottom (30) and intermediate fabric (20) layers may also have long cross machine direction floats on their top surfaces to support the fabric or fabrics above. In a preferred embodiment, the yarns (11, 12) making up the top fabric layer (10) will be relatively finer than those making up the intermediate layer (21, 22) and similarly, the yarns making up the intermediate layer will be relatively finer than those making up the bottom fabric layer (31,32).
Patent CA-2124653-C (CA)
Inventor: SMITH JEREMY P
IPC: B65D83/14
Filed: 1994-05-30
Granted: 1997-01-07
Abstract: In an aerosol valve the flow path includes a compartment having an inlet into the compartment and a valve seat at the upper end of the compartment, a pocket is disposed downward from the seat opening, the pocket containing a gravity-responsive ball. When the valve is being used in dispensing and is tipped in a direction which brings the ball closer to the flow through the compartment, the ball becomes entrained in the fluid flow and flies up to seat on the valve seat to block it off, precluding further discharge. When the aerosol valve is released, a bypass raises the pressure inside the valve body so that the ball will fall away from the seat. The purpose is to avoid the escape of propellant which might occur in tipping if the lower end of the dip tube is exposed to the head space.
Patent CA-2124998-C (CA)
Title: Method for remotely determining operability of motor operated valves
Inventor: LEON ROBERT L
IPC: F16K37/00
Filed: 1994-06-02
Granted: 2005-07-26
Abstract: A method is disclosed for determining operability of a motor operated valve combination including a valve having a valve stem, a valve disc, a valve seat, and a motor operator having a motor drive interconnecting the motor to the valve stem for movement of the valve disc toward and into engagement with the valve seat to close the valve and a control switch for deactivating the motor. The method comprises the steps of sensing the real motor power of the motor as a function of time during valve closing with zero differential pressure applied to the valve at a first time. From the sensed information, the rate of motor power build-up is determined after the onset of valve wedging during valve closing at the first time. The real motor power of the motor is again sensed as a function of time during valve closing with zero differential pressure applied to the valve at a second time which is subsequent to the first time. The rate of motor power build-up after the onset of valve wedging during valve closing at the second time is determined from the sensed information. The rate of motor power build-up after the onset of valve wedging at the first and second times is compared as an indication of lubrication change within the valve between the first and second times.
Patent CA-2126417-C (CA)
Inventor: ALBANESE GUIDO
IPC: C07F9/50
Filed: 1994-06-21
Granted: 1997-04-22
Abstract: The  sulfonation  of  arylphosphines,  i.e.  mono-,  di-, oligo- and polyphosphines which contain at least one aromatic radical capable of being sulfonated, is carried out according to the invention in the presence of a Lewis acid. The novel process avoids side-reactions, in par-ticular the formation of phosphine oxides. In working up the sulfonation mixture the Lewis acid can be removed together with the sulfuric acid.
Patent CA-2127676-C (CA)
Inventor: NEBOLON JOSEPH F
IPC: A61F5/01
Filed: 1994-07-08
Granted: 2005-05-03
Abstract: A hinge assembly is provided for an orthopaedic brace having a rotatable hinge and a detent mechanism to automatically, yet releasably, lock the hinge in a fixed position or rotation. The hinge includes two rotatably attached members and the detent mechanism includes an indentation formed in the attached end of one member and a block pivotally mounted on the other member. The block has a locking projection that is biased toward the indentation and cooperates therewith to provide three positions of operation, a locked position, a release position, and an activated position. In the locked position, the locking projection fittingly engages the indentation, thereby substantially preventing rotation of the hinge. The release position displaces the locking projection a radial distance away from the indentation, thereby permitting the hinge to rotate freely. In the activated position, the block disengages the indentation and maintain an angular distance therefrom so that the detent mechanism does not obstruct rotation of the hinge, but enables automatic repositioning of the hinge assembly to the locked position whenever the locking projection and indentation angularly realign.
Patent CA-2129936-C (CA)
Title: Thermosetting bonding agents
Inventor: ROLL WILLI
IPC: C08G8/20
Filed: 1994-08-11
Granted: 2000-08-15
Abstract: Thermosetting bonding agents for products that contain cellulose contain tannin and a substance that releases formaldehyde when heated. The working materials produced with them display good strength and low swell values after storage in water.
Patent CA-2133230-C (CA)
Title: Optical module, method of manufacturing the same, and sleeve
Inventor: KURASHIMA HIROMI
IPC: G02B6/38
Filed: 1994-09-29
Granted: 2004-06-29
Abstract: An optical module comprises a plastic package constituted by a package main body and a cover, sleeves formed integrally with the package main body, a circuit board held in the package main body, light-activated elements fixed at predetermined positions of the circuit board, three projections formed integrally with an inner surface of the package main body and brought into contact with a periphery of the circuit board to position the circuit board, springs formed integrally with an inner surface of the package to press the periphery of the circuit board against the projections. Since the sleeve and the package main body are integrally formed by plastic molding, the number of components is reduced, thereby simplifying the assembling steps.
Patent CA-2136185-C (CA)
Title: Increasing creping blade load and maintaining blade angle
Inventor: MARINACK ROBERT J
IPC: D21G3/00
Filed: 1993-08-12
Granted: 2002-11-05
Abstract: A creping system includes a Yankee dryer rotatable about its axis, a blade support mechanism which includes (a) a pair of guide rails (44, 46), (b) a fixed attitude linear bearing engaging and translatable along each of the guide rails, each fixed attitude linear bearing being mounted on a block (50) and (c) a com-bination linear-rotary bearing being carried by each block, the axis of each combination line-ar-rotary bearing being parallel to the genera-tors of the surface of the Yankee dryer and colinear with the axis of the other combination linear-rotary bearing. A stub shaft (20A) en-gages each combination linear-rotary bearing, each stub shaft being translatable along, and rotatable about, the axis of its respective com-bination linear-rotary bearing. A blade holder (12A) is mounted between the stub shafts, and a blade mounted on the blade holder for en-gagement with the surface of the Yankee dry-er. The blade support mechanism allows the creping angle of the blade to be adjusted and maintained within a desired range by allowing adjustment of the creping blade angle to compensate for changes in creping angle due to flexure of the blade and flank wear on the blade. This adjustment is permitted while allowing the blade holder (18) to be (a) translated in a direction parallel to the generators of the surface of the Yankee dry-er, (b) rotated about the axis of the stub shafts, and (c) urged inwardly toward, or outwardly away from, the surface of the Yankee dryer.
Patent CA-2138189-C (CA)
Inventor: COLLINS BRIAN THOMAS
IPC: G03G5/04
Filed: 1994-12-15
Granted: 1999-06-01
Abstract: A method of electrophotographically manufacturing a screen assembly on an interior surface of a viewing faceplate of a panel for a color CRT includes the steps of forming a volatilizable organic conductive layer on the interior surface of the viewing faceplate and overcoating the organic conductive layer with an organic photoconductive solution to form a volatilizable organic photoconductive layer.  The conductive solution, comprising a polyelectrolyte and a diluent, is applied to the interior surface of the viewing faceplate by spraying, to form the conductive layer.