baber/WOPTO huggingface dataset:
Patent CA-2004529-C (CA)
Inventor: BOECKMANN HUGO
IPC: B65B51/30
Filed: 1989-12-04
Granted: 1995-08-15
Abstract: A mechanism and method for seaming and joining overlaid sheets such as to form seams on adjacent bags by applying heated pressure sealing jaws to opposite sides of the overlaid sheets with the pressure being applied decreasingly inwardly away from the edges of the seam and cutting the seaming areas between them to separate the seamed portions so as to form edges of adjacent bags with the bags preferably having rib and groove upper fasteners extending outwardly to the edge of the seam.
Patent CA-2009061-C (CA)
Title: Floor structures particularly suitable for rooms with data processing equipment
Inventor: DUCROUX ALAIN RENE EMILE
IPC: E04F15/024
Filed: 1990-01-31
Granted: 1997-03-25
Abstract: A floor structure for rooms housing data processing equipment having a raised false floor comprising removable tiles laid side by side over a series of supports in order to afford clearance for the routing of cables, wires, hoses or equivalent connections between the various parts of the equipment within the facility, wherein this structure is comprised of base plates 1 laid side by side on the existing floor 2 and carrying on their upper surface a certain number of stand-offs 3 which form the supporting structure, are fixed upon the base plates and are so distributed upon the plates as to form a network of channels 5 where the cables, wires, hoses  or  equivalent  can be  routed,  and  as  to simultaneously form at their top plans 6 a fairly tight pattern of load bearing points for the floor tiles 4, wherein the base plates 1 and the stand-offs 3 are manufactured separately and can be assembled together.
Patent CA-2013781-C (CA)
Title: Aromatic aldehydes, their derivatives and their utilization as perfuming ingredients
Inventor: NAEF FERDINAND
IPC: C07D295/08
Filed: 1990-04-04
Granted: 1998-08-18
Abstract: Disclosed are aromatic aldehydes of formula:     (see fig. I) (in which the dotted line represents a single or a double bond, X represents a monovalent radical or formula:     (see fig. II) or, when the dotted line represents a single bond, of formula:     (see fig. III) and Z stands for an oxygen atom or for two R2O radicals, each of R1 and R2 representing an alkyl radical having from 1 to 3 carbon atoms).  The aromatic aldehydes (I) possess useful odorous properties and can be used as perfuming ingredients for the preparation of perfume bases and perfumed articles.          They can also be used as starting materials for the preparation of useful end-products having herbicide and fungicide properties.  Further disclosed is a process for the preparation of the aromatic aldehydes (I) starting from 8-methoxycuminic aldehyde.
Patent CA-2015796-C (CA)
Title: Marking guide lines on roofing mat
Inventor: PELL EDWARD A
IPC: D06N5/00
Filed: 1990-05-01
Granted: 1997-12-02
Abstract: Paint is sprayed in a thin line onto a fiber glass mat just prior  to  the  mat  being  impregnated  with  hot  asphalt.   The temperature of the asphalt causes the paint solvent to flash,  the process of which prevents the asphalt from displacing the pigment, leaving the paint pigment in place in the body of the mat.  A number of  such  lines  may  be  formed on  the mat  at  predetermined spaced locations to serve as installation guide lines for the roofer.
Patent CA-2023588-C (CA)
Title: Can top
Inventor: AMABILI ARNALDO
IPC: B65D17/32
Filed: 1990-08-20
Granted: 2002-07-23
Abstract: The present invention provides an improved easy open end wall for a beverage container wherein the removable non-detachable panel covering the dispensing aperture is removed outwardly to prevent contamination of the contents while the force required to start the tear initiation is minimized.
Patent CA-2029878-C (CA)
Inventor: ASANUMA TADASHI
IPC: C08F6/02
Filed: 1990-04-10
Granted: 1998-06-09
Abstract: L'invention présente un procédé pour préparer un polypropylène syndiotactique, consistant à laver, à l'aide d'un solvant hydrocarboné, un polymère obtenu par polymérisation de propylène en présence d'un catalyseur à base d'un métal de transition renfermant un ligand asymétrique.  Lorsque la suspension du polymère est traitée avec un composé bêta-dicarboxylé et un alcool renfermant ou non de l'acide chlorhydrique gazeux, dans des conditions non aqueuses, avant le lavage au solvant hydrocarboné, de telle façon que le résidu du catalyseur utilisé dans la réaction de polymérisation puisse être solubilisé dans le solvant hydrocarboné, alors le polypropylène syndiotactique résultant se trouve grandement amélioré.
Patent CA-2031238-C (CA)
Inventor: HOENES JOACHIM
IPC: G01N33/52
Filed: 1990-11-30
Granted: 1995-10-24
Abstract: The invention concerns the use of a sparingly soluble salt of a heteropoly acid for the determination of an analyte, in particular, when the analyte is an aromatic amine rich in electrons or together with another substance leads to such an amine. In addition, the invention concerns a method for the determination of an analyte by means of heteropoly blue formation which is characterized in that the analyte is reacted with a substance which leads to an aromatic amine rich in electrons which is brought into contact with a sparingly soluble salt of a heteropoly acid as well as a corresponding agent.
Patent CA-2035312-C (CA)
Title: Panel shutter assembly
Inventor: KONDOH KOHICHI
IPC: E06B9/06
Filed: 1991-01-30
Granted: 1995-02-07
Abstract: A panel shutter assembly includes a plurality of shutter panels supported one after another between a pair of chains.   Each panel is suspended from a pair of pins carried by the two chains, respectively, and each chain, therefore, carries a plurality of pins.  Each chain includes a plurality of spaced apart link attach-ments each having a longitudinally extending pin guide slot through which one of the pins extends slidably along the slot.   The chains engage a pair of sprockets, respec-tively.   A pair of arms are supported respectively on the shafts on which the sprockets are rotatably supported.          The arms are rotatable with the sprockets and extend radially of the sprockets to project beyond the outer peripheries thereof to engage each pair of pins that have approached the sprockets.
Patent CA-2037144-C (CA)
Title: Heat exchanger apparatus, particularly for hybrid heat pumps operated with non-azeotropic work fluids
Inventor: BERGMANN GYOERGY
IPC: F28F27/02
Filed: 1991-02-26
Granted: 1993-04-27
Abstract: HEAT EXCHANGER APPARATUS, PARTICULARLY FOR HYBRID  HEAT    PUMPS OPERATED WITH NON-AZEOTROPIC WORK FLUIDS                         ABSTRACT   Heat  exchanger  apparatus comprising  a  substan-tially horizontal countercurrent heat exchanger of  the shell-and-tube type, particularly for hybrid heat pumps operated  with  non-azeotropic work fluids,  wherein  a fluid  distributor  (33) with fluid  outlets  (40)  the number  of which corresponds to the number of the  heat exchanger  tubes  (22) of the heat  exchanger  (21)  is provided  upstream  the heat exchanger (21),  the  heat exchanger tubes (22) of which are connected each to one fluid outlet (40) of the fluid distributor (33).          (Fig. 1)
Patent CA-2039308-C (CA)
Title: Rollable window screen guide locking assembly
Inventor: EVERS ROBERT S
IPC: E06B9/54
Filed: 1991-03-27
Granted: 1995-08-22
Abstract: A spring powered roll type fiberglass window screen has side edges received in guide channels in which locking bars are pivotally and slidably received.  In closing the screen, the locking bars are longitudinally slidable by a screen actuator which in turn causes the locking bars to be pivoted into engagement with the screen by action of a guide actuator tab engaging a cam surface on the locking bar.  In opening the screen, the screen actuator moves the locking bar upwardly until it is pivoted out of engagement therewith by a guide cam surface on the guide channel whereupon the screen is free to move to a fully raised position, leaving behind the locking bar.
Patent CA-2044384-C (CA)
Title: Gangable electrical wiring box
Inventor: ZAUNER HERMAN
IPC: H02G3/08
Filed: 1991-06-12
Granted: 1996-06-25
Abstract: A side plate for use in a knockdown, electric wiring box to form a side wall of the wiring box.  The side plate includes a retaining member at a first extremity of the side  plate  for  engagement  by  interpenetration  with a mating component on the electric wiring box to form a releasable interlock retaining the first extremity to the electric wiring box.  A screw stop, projecting from the side plate in a direction opposite the electric wiring box is provided at a second extremity of the side plate to form a positive and firm abutment for a locking screw threadedly engaged in the electric wiring box, overlapping the side plate to achieve an interference relationship therewith and lock the second extremity of the side plate to  the  electric  wiring  box.    The  invention  is  also directed toward an electric wiring box incorporating the novel side plate.
Patent CA-2062317-C (CA)
Title: Crank handle for window pane or the like
Inventor: LANGEVIN YVES
IPC: G05G1/08
Filed: 1992-03-05
Granted: 2001-02-13
Abstract: A handle for mounting to a crank shaft operable to actuate a movable structure, such as a window pane, comprises first and second members which are pivotally connected to one another through a hinge axis.  The members have intermediate sections with a complementarily shaped groove-and-projection configuration so that when the handle is not in operative condition, one member is folded over the other member with the groove and the projection in an imbricated position in a compact arrangement.
Patent CA-2066719-C (CA)
Title: Oil/water measurement
Inventor: AGAR JORAM
IPC: G01N22/00
Filed: 1990-10-04
Granted: 1997-12-16
Abstract: A device for measuring the concentration of two substances through the transmission of electromagnetic waves. The device utilizes at least one transmission element for transmitting a signal and at least two receiving elements for receiving a signal from the at least one transmission element and providing first and second output signals. The present invention also utilizes a receiving device for receiving the first and second output signals from the at least two receiving elements such that the difference or ratio of the two signals is utilized to determine the concentration.
Patent CA-2067392-C (CA)
Inventor: DATTA PABITRA
IPC: G03G15/08
Filed: 1990-09-18
Granted: 2002-01-29
Abstract: An apparatus for electrophotographically manufacturing a luminescent screen assembly on a substrate (18), for use within a CRT includes a developer for developing a photoconductive layer (34), having a latent image thereon, with dry-powdered, trib-oelectrically-charged screen structure materials (48, 48'). The photoconductive layer (34) overlies a conductive layer (32) in con-tact with the substrate (18). A grid-developing electrode (44) is located at a distance from the photoconductive layer that is large relative to the smallest dimension of the latent image. The electrode is biased with a suitable potential, to influence the deposition of the charged screen structure materials onto the latent image on the photoconductive layer. A method for electrophotographical-ly manufacturing the screen assembly utilizing the grid-developing electrode is also disclosed.
Patent CA-2068260-C (CA)
Inventor: URBAN ERNST-GUNTHER
IPC: B65H19/29
Filed: 1992-05-08
Granted: 2004-03-30
Abstract: In winders for winding webs of material, in particular of paper or cardboard, onto winding cores, and which incorporate a support or carrier roll around which the web wraps, at least in part, it is known that a web separating system and a system for applying a double-sided adhesive strip can be arranged within the wrap-around area of the support or carrier roll. The separating system incorporates a separating element that can be moved transversely and set upon the wrapped around support or carrier roll. According to the present invention, an adhesive tape dispenser for an adhesive tape that has a layer of adhesive which adheres to a backing tape, is arranged next to the support or carrier roll. This dispenser incorporates a supply roll and a take-up roll for the empty backing tape. The adhesive tape is guided transversely to the web around a free-wheeling pressure roll which is supported on a transversely moveable slide so that its adhesive tape can be pressed against the wrapped around support or carrier roll. A separating element (wheel) is secured to the slide behind the pressure roll as viewed in the direction in which the adhesive strip is applied.
Patent CA-2070069-C (CA)
Title: Method and circuit arrangement for monitoring and limiting the operating temperature of electrically heated equipment, as well as the use of the method
Inventor: GRUENIG KURT
IPC: G05D23/19
Filed: 1992-05-29
Granted: 2000-05-16
Abstract: A method and apparatus for monitoring and limiting the operational temperature of physical and technical equipment includes supplying a heating device with at least one test pulse of energy and the effect of the test pulse on the temperature course of the equipment is compared to a characteristic operating line that is to be monitored. The comparison dictates whether further energy can be supplied to the device or whether the energy supply is to be switched off.      Such monitoring and control can be carried out periodically, without interrupting the operation of the equipment. The invention can be used to monitor the degree to which a heater is filled with a heat transfer medium; and is also able to detect impermissible heat dissipation levels.
Patent CA-2070839-C (CA)
Title: Method for removing organic film
Inventor: KASHIWASE MASAHARU
IPC: H01L21/027
Filed: 1991-10-09
Granted: 2002-02-05
Abstract: A method of removing organic coating which is vary effective in removing photoresist films in a process of manufacturing semiconductor devices. The organic film is removed by treating a substrate (32) on which a photoresist film (31) is formed in a wet-type processing vessel (34) which is filled with a processing liquid such as a mixture of sulfuric acid and hydrogen peroxide water, or in an ozone processing vessel (34) fillers with a liquid obtained by adding ozone or ozone water to ultra-pure water after the dry processing of the substrate with ozone or oxygen plasma.
Patent CA-2070938-C (CA)
Title: Plastic bee nest surround
Inventor: EGGERMAN PERCY A
IPC: A01K47/00
Filed: 1992-06-10
Granted: 2001-08-28
Abstract: A nest surround for leafcutter bee nest blocks is molded from a synthetic thermoplastic material. The surround has a peripheral wall that surrounds the next block, and supporting structure for retaining a nest block in place. The surround is durable, light weight, easy to assemble and disassemble. The plastic material is corrosion proof. In some embodiments, the surround can be converted from a single cavity surround to a double cavity surround by using one component with a deeper peripheral wall.
Patent CA-2073121-C (CA)
Title: Method and arrangement for data transmission
Inventor: ZIJDERHAND FRANS
IPC: H04L12/56
Filed: 1992-07-03
Granted: 2000-06-27
Abstract: In a method of data transmission from a plurality of sub-stations to a main station over a common channel which is subdivided into time slots whose length and synchronization are determined by a corresponding time slot distribution of a data transmission signal sent out by the main station, in which each sub-station in each time slot has a predetermined probability p of transmitting a data packet, the throughput of the communication channel is improved in that said probability p is adapted to the load of the communication channel.
Patent CA-2075937-C (CA)
Title: Anti-human plasmin-.alpha.2- plasmin inhibitor complex antibodies, hybridomas, and immunological determination method
Inventor: SOE GILBU
IPC: C12P21/08
Filed: 1991-12-19
Granted: 2002-01-29
Abstract: A first monoclonal antibody which specifically reacts with a human .alpha.2-plasmin inhibitor complex (PIC) and a human plasminogen; a second monoclonal antibody which reacts with PIC and also with a human .alpha.2-plasmin inhibitor; a third monoclonal antibody which reacts with PIC, but does not react with a human plasminogen and a human .alpha.2-plasmin inhibitor; hybridomas which secrete the first to third monoclonal antibodies, and an immunoassay using the first to third monoclonal antibodies.
Patent CA-2080795-C (CA)
Title: Method and apparatus for measuring the mass throughput of a flow of material according to the coriolis principle
Inventor: HAFNER HANS WILHELM
IPC: G01F1/84
Filed: 1992-10-16
Granted: 2003-08-19
Abstract: A method and apparatus for determining mass throughput of material to be conveyed through an essentially closed conveying system. In addition to a mass measuring device for determining the throughput of a flow of a conveying fluid carrying the material to be conveyed, there is provided a second measuring device for determining the mass of conveying fluid supplied to the conveying system. Substracting the values measured results in a very accurate indication of the mass of material momentarily conveyed, without error caused by the conveying fluid.
Patent CA-2084414-C (CA)
Inventor: SIIMAN OLAVI
IPC: B03C1/01
Filed: 1991-05-31
Granted: 1994-01-04
Abstract: A method is described for the preparation of uniform colloidal particles of ferrites, containing manganese(II), zinc(II), iron(II), barium(II), cobalt(II) or nickel(II), or a mixture of manganese(II) and zinc(II), at a relatively low temperature in the presence of a gelatin solution which acts as a support vehicle for the nucleation and growth of colloidal particles of metal oxide and for dispersion as separate single particles.
Patent CA-2085446-C (CA)
Title: Organic electroluminescent multicolor image display device
Inventor: TANG CHING WAN
IPC: H05B33/10
Filed: 1992-12-15
Granted: 2003-04-15
Abstract: An organic electroluminescent multicolor image display device is disclosed containing an image display array made up of a plurality of light emitting pixels arranged in intersecting files (rows and columns). Each pixel contains a light transmissive first electrode, an electroluminescent medium overlying the first electrode, and an overlying second electrode.      The electrodes connect the pixels in an X-Y addressing pattern. The organic electroluminescent medium emits in the blue region of the spectrum. Each pixel is divided into at least two sub-pixels. The electrodes of one set of parallel files is divided into at least two laterally spaced elements each of which joins and forms a part of one sub-pixel of each pixel in the same file. A fluorescent medium capable of absorbing light emitted by the electroluminescent medium and emitting at a longer wavelength is positioned to receive emitted light from the first electrode means. The fluorescent medium is confined to only one of the sub-pixels of each pixel.
Patent CA-2087610-C (CA)
Title: Biologically safe plant transformation system
Inventor: YODER JOHN I
IPC: C12Q1/68
Filed: 1991-07-01
Granted: 2000-09-12
Abstract: This invention relates to methods for producing transgenic plants that contain a gene of interest and that ase free of foreign ancillary nucleic acids. These methods allow for the production of plants which thus contain a desired gene, but which are free of vector sequences and/or marker sequences used to transform the plant. The method of transforming such plant calls for transforming the plants with a gene of interest by introduction of the gene on a DNA construct comprising a transposon and foreign ancillary nucleic acids; crossing thin transformed plant through self crossing or with another plant to obtain F1 or more removed generation progeny; and utilizing a means for selecting those progeny that carry the gene of interest and are free of the ancillary nucleic acids. Such progeny may be detected biochemically, by Southern hybridization, through the use of polymerase chain reaction procedures and ocher methods available in the art.
Patent CA-2090284-C (CA)
Title: Method for detecting and masking bad frames in coded speech signals
Inventor: SU HUAN-YU
IPC: H04L1/00
Filed: 1993-02-24
Granted: 1998-07-07
Abstract: The process for detection and masking of bad frames in a coded speech signal resulting from channel transmission errors has been improved.  The coded speech signal has a first group of bits comprising the most perceptually significant bits of the coded speech signal, a second group of bits comprising the second most perceptually significant bits and a third group of bits comprising the least perceptually significant bits.  The coded speech signal is de-interleaved to obtain a first series of bits comprising the first and second group and a second series of bits comprising the third group of bits. The first series of bits are convolutionally decoded for recovering the first and second group of bits, with the first group of bits containing error protected bits.  A CRC check is performed by sending the recovered bits of the first group to cyclic redundancy decoding means.  The first group of bits is forwarded to speech decoder means if the CRC check is successful.  The frame energy and LPC parameters are replicated for the first and third group of bits and the frame energy, LPC parameters, lag value and sub-frame gain are replicated for the second group of bits, and subsequently the replicated bits are forwarded to the speech coder means, if the CRC check is not successful.
Patent CA-2094035-C (CA)
Title: Method of separating polyethyleneterephthalate (pet) and polyvinylchloride (pvc)
Inventor: STAHL INGO
IPC: B29B13/02
Filed: 1992-07-04
Granted: 2003-09-16
Abstract: In the method disclosed, plastics materials, in particular materials of similar density such as poly(ethylene terephthalate) and poly(vinyl chloride), are separated using electrostatic techniques, the mixture being subjected to heat treatment to charge it tribo-electrically.
Patent CA-2094901-C (CA)
Inventor: MALMANGER JOHN A
IPC: B63B19/16
Filed: 1993-04-26
Granted: 2003-12-30
Abstract: A hatch for a boat or other application is provided. The hatch includes a frame for mounting in an opening in a panel and a hatch cover pivotally mounted thereto. The cover includes a hinge pin that pivotally engages a hinge receptacle mounted on the frame. A handle is slidably mounted in the hatch cover and includes a latch that releasably engages the frame when the hatch is in a closed and latched position.
Patent CA-2095777-C (CA)
Title: Catalytic converter having a metallic monolith mounted by a heat-insulating mat of refractory ceramic fibers
Inventor: LANGER ROGER L
IPC: F01N3/28
Filed: 1993-05-07
Granted: 2003-09-02
Abstract: A catalytic converter has a metallic monolith that is mounted in a canister by a heat-insulating mat of melt-formed refractory ceramic fibers that have been annealed to provide a Resiliency Value of at least 10 kPa. Previously known melt-blown fibers used in such mats were thought to require a fine-grained crystalline structure to have a higher resiliency value. However, a mat in accordance with the invention having a Resiliency Value of at least 10 does not take a compression set that would allow the monolith to become loose, is made from ceramic fibers which are preferably melt-formed from a mixture of about equal parts by weight of Al2O3 and SiO2.      After being annealed, the ceramic fibers can have a fine-grained crystalline structure, but significant energy savings can be realized by reducing the annealing temperatures and times such that the fibers have an amorphous structure while still attaining excellent Resiliency Values.
Patent CA-2098102-C (CA)
Title: Alteration of rate and character of hair growth
Inventor: SHANDER DOUGLAS
IPC: A61P3/00
Filed: 1991-12-19
Granted: 1996-11-05
Abstract: The rate and character of mammalian hair growth is altered by topical application to the skin of a composition containing an inhibitor of the enzyme transglutaminase.