baber/WOPTO huggingface dataset:
Patent CA-2001482-A1 (CA)
Inventor: ITEY FREDERIC
IPC: B65D5/46
Filed: 1989-10-25
Abstract: "Boîte pour l'emballage, notamment de pâtisseries ou gâteaux, préparée à partir d'un flan découpé et rainé". Frédéric ITEY a) Boîte pour l'emballage, notamment de pâtisseries ou gâteaux, préparée à partir d'un flan découpé et rainé. b) boîte caractérisée en ce que : - chaque volet (201 - 206 ; 401 - 404) est formé d'une base (201A - 206A ; 401A - 404A) et d'une patte (201B - 206B ; 401B - 404B), - chaque base (201A - 206A ; 401A, 404A) est bordée sur au moins une partie de sa longueur et sur au moins l'un de ses côtés par une bande de rigidification (201E, 201F - 206E, 206F, 401E - 404F) reliée à la base par une ligne de pliage et les bandes de rigidification homologues des deux volets adjacents se rejoignent par une ligne de pliage (300, 501, 502, 503, 504) et lorsque les volets sont relevés, les deux bandes de rigidification viennent en saillie dans le volume de la boîte et rapprochent les lignes de pliage pour former une arête entre les deux volets. c) L'invention concerne les boîtes en carton. - Figure 3 jointe
Patent CA-2001761-A1 (CA)
Inventor: RIEFLER R SCOTT
IPC: B32B27/04
Filed: 1989-10-30
Abstract: Laminated composites made with layers of fiber reinforced thermosetting resin prepregs and with thermoplastic film interleaf layers are improved by using thermoplastic film coated with thermosetting adhesive as the interleaf layer. In composites having a honeycomb core with thermosetting prepreg skins, the thermoplastic film is a moisture barrier to exclude water vapor from the honeycomb cavities.
Patent CA-2002005-A1 (CA)
Title: Urethane composition
Inventor: NAKAMURA TSUTOMU
IPC: C08G18/54
Filed: 1989-11-01
Abstract: ABSTRACT   A flame-retardant spray-foamable phenolic urethane composition comprising a polyisocyanate component, a polyol component, an urethane-forming catalyst, a blowing agent and a foam stabilizer, wherein the polyol component comprises:   (1) a modified benzylic ether phenol resin obtained by adding from 20 to 100 parts by weight of a polyhydric alcohol or its alkyleneoxide adduct to 100 parts by weight of a benzylic ether phenolic resin, followed by heating under reduced pressure, and (2) other polyol, in such amounts as to satisfy the following equation:   (x + y)/z = 0.2 - 1.5 wherein x is the amount by weight of the polyhydric alcohol or its alkyleneoxide adduct, y is the amount by weight of said other polyol, and z is the amount by weight of the benzylic ether phenol resin.
Patent CA-2002324-A1 (CA)
Title: Method for comparing the quality of rf absorbers
Inventor: HANSEN DIETHARD
IPC: G01R29/08
Filed: 1989-11-06
Abstract: ABSTRACT OF THE DISCLOSURE A method for comparing the quality of RF absor-bers uses a TEM cell which is provided with a low-reflec-tion termination, in which cell the absorber wall (5) is equipped with reference absorbers  (13). A steep-edged pulse wave is radiated in by means of a pulse generator (9) and a scattered wave reflected by the test absorber (14) is detected by means of a sensor (10). A reflection of the absorber wall is then determined by means of a first calibration measurement. The reference absorber is removed in a test area and a reflection of a metal wall (8) lying behind it is then determined by means of a second calibration measurement. Finally, a reflection of the test absorber  (14)  arranged in the test area is determined in a comparison measurement.
Patent CA-2002368-A1 (CA)
Title: Polyamide resin compositions
Inventor: HASHIMOTO MIKIO
IPC: C08L77/00
Filed: 1989-11-07
Abstract: ABSTRACT            There is disclosed a polyamide resin composition which comprises:        (A) an aromatic polyamide resin comprising (a) a dicarboxylic acid component which comprises an aromatic dicarboxylic acid component and (b) a diamine component comprising at least one of an aliphatic diamine component and an alicyclic diamine component; (B) an olefin copolymer in amounts of 0.5-50 parts by weight in relation to 100 parts by weight of the aromatic polyamide resin, the olefin copolymer comprising an .alpha.-olefin component and an .alpha., .beta.-unsaturated carboxylic acid glycidyl ester component in amounts of 1-30 % by weight based on the copolymer. The polyamide resin composition may further contain a polyarylate in amounts of 10-200 parts by weight in relation to 100 parts by weight of the polyamide resins wherein the polyarylate is polymerization products of bisphenols and aromatic dicarboxylic acids or their derivatives.
Patent CA-2008710-A1 (CA)
Inventor: MIDDLETON MARTIN J
IPC: F16F9/512
Filed: 1990-01-26
Abstract: ABSTRACT            Title:  Overload Attenuators An overload attenuator having a multi-stage damper valve assembly catering for loads encountered during normal operation, separator means for separating the damper valve assembly in the event of an overload and an emergency orifice for maintaining a damping force following separation of the damper valve assembly.
Patent CA-2009987-A1 (CA)
Title: Journal bearing type rock bit
Inventor: WHITE KENNETH M
IPC: E21B10/22
Filed: 1990-02-14
Abstract: ABSTRACT         An improved journal bearing for rotary cone type mining or oilfield rock bits is disclosed.  Such rock bits typically have several cutters each rotatably mounted on a cantilevered bearing pin.  The cutter and respective bearing have complementary journal bearing surfaces.  A retainer is provided at one end at the bear-ing surfaces for keeping the cutter on the bearing pin and a seal is provided at the opposite end.  In addition to the usual axial thrust surface located towards the radially inner end of the bearing pin, one or more secondary axial thrust surfaces are provided in one embodiment of the invention.  Alternatively, at least one series of grooves or other axial lubricant flow restric-tor is provided at the complementary bearing surfaces.  The inven-tion greatly improves the load carrying capacity of the bearing.
Patent CA-2010976-A1 (CA)
Inventor: DERRIEN MICHEL
IPC: B64C25/10
Filed: 1990-02-27
Abstract: D E D I V U L G A T I O N L'atterrisseur selon l'invention comporte un caisson dans lequel coulisse une tige coulissante , le caisson et la tige coulissante étant reliés l'un à l'autre par un compas comprenant une branche supérieure et une branche inférieure reliées l'une à l'autre par des moyens articulés mobiles entre une position repliée où les branches de compas sont adjacentes et une position déployée où les branches de compas sont écartées l'une de l'autre, faisant ainsi pivoter la tige coulissante autour de son axe. Figure 1.
Patent CA-2011934-A1 (CA)
Title: Method and apparatus for source routing bridging
Inventor: HESKE THEODORE III
IPC: H04L12/46
Filed: 1990-03-12
Abstract: METHOD AND APPARATUS FOR SOURCE ROUTING BRIDGING                  Abstract of the Disclosure To improve the throughput of bridges in a multiple ring token ring network, External Copy Hardware (ECH) is provided for each source routing bridge to determine when a frame is to be  copied as a candidate for forwarding to another ring by a given bridge.  Each frame may contain a Routing Information Field (RIF), which the ECH searches for Segment Numbers in the RIF that are compared with host processor developed Primary Segment Numbers (each representing a primary ring number and a bridge number) and Secondary Segment Numbers (each representing an alternate ring number and a bridge number).  The ECH uses the results of the comparisons along with a look-up table and a Routing Control Word (also present in the RIF) to determine if the frame under consideration is to be copied by a Protocol Handler (which interfaces with the ECH) and forwarded by the corresponding bridge to another ring.  During the process of making a copy or non-copy decision, the frames are scanned unidirectionally, and the decision is made "on the fly", thereby increasing operation speed.
Patent CA-2014493-A1 (CA)
IPC: B02C19/22
Filed: 1990-04-12
Abstract: A shredder capable of grinding large objects to form material of a smaller predetermined size is described. A grinding chamber (20) is defined by a housing. Mounted within the chamber (20) is screw auger means (40, 42) using tapered flights. Motor means is provided to rotate the screw auger means. Hopper means (14) is positioned above the grinding chamber (20) to direct material therein to be shredded by the screw auger means (40, 42). Variable opening means (70, 72) are formed in the bottom of the grinding chamber below the screw auger means. An opening of a selected size allows material shredded by the screw auger means (40, 42) and reduced in size until it is sufficiently small to pass through the opening.
Patent CA-2015692-A1 (CA)
Title: Shovel-saver
Inventor: THOMAS JULIAN P
IPC: A01B1/02
Filed: 1990-04-30
Abstract: ABSTRACT In a "throw-away society" such as ours, there appears to be a concomitant loss of conservation consciousness on the part of the consumer. The present use and subsequent disposition of worn-out snow handshovels and scoop handshovels are one example of this phenomenon. These two types of shovels, during normal use, are subjected to a great deal of abrasion and impact. After several years of use, their blades become so badly damaged and/or worn that the shovel is totally scrapped while the wooden handle and all accessories are still "like new". In this invention, the "life" of this type of shove would be extended almost indefinitely through the application of a false, protective blade called a shovel-saver. The shovel-saver would be construct from high-impact, flexible linear polyethylene, and when used as a protective device, would prevent any "wear-and-tear" of the shovel blade. The shovel-saver would be an "environmentally friendly" product as its application and use would be tantamount to a recycling process.
Patent CA-2016374-A1 (CA)
Inventor: DELAPERRIERE JEAN-PAUL
IPC: H04B1/713
Filed: 1990-05-09
Abstract: ABREGE Procédé et dispositif de transmission de l'information entre émetteurs-récepteurs radioélectriques d'un même réseau fonctionnant en évasion de fréquence Le procédé consiste: - à rechercher (2) au moyen d'au moins un poste émet-teur-récepteur un plan de fréquences exploitables - à transmettre (3) le plan de fréquences exploitables aux autres émetteurs-récepteurs du réseau - et à effectuer (4) les transferts des communications en évasion de fréquence sur le plan des fréquences exploitables transmis à l'ensemble des émetteurs-récepteurs du réseau. Application: transmissions radio en évasion de fréquence. FIGURE 1
Patent CA-2017926-A1 (CA)
Inventor: POPESCU PETRE
IPC: H03H11/12
Filed: 1990-05-30
Abstract: SECOND ORDER ACTIVE FILTERS            Abstract of the Disclosure A family of second order active filters is described. A general form of the filter comprises an input terminal, an output terminal, and a common terminal, a first reactance and a resistance  coupled in series between the input and common terminals, a first amplifier coupled from a connection point between the first reactance and the resistance to the output terminal, a first potential divider between the input terminal and one of the output and common terminals, a second amplifier coupled from a tapping point of the first potential divider via a second reactance to the connection point, a second potential divider between the output terminal the the common terminal, and a third amplifier coupled from a tapping point of the second potential divider via a third reactance to the connection point, at least one of the reactances being inductive and at least one other being capacitive. Different configurations are described for low-pass, notch, high-pass, band-pass, and all-pass filters, in some of which the first potential divider and second amplifier and second reactance, or the second potential divider and third amplifier and third reactance, are omitted.
Patent CA-2018421-A1 (CA)
Inventor: KROHN CHRISTINE E
IPC: G01V1/42
Filed: 1990-06-06
Abstract: A method of determining the continuity of a lithographic layer located between two vertical boreholes is disclosed. A seismic source is lowered in the first borehole while simultaneously a receiver pair, preferably a pair of "vertical" geophones spaced apart by about two feet, are lowered in the second borehole to develop a "differenced signal". The recording of high amplitude signals within a layer is an indication of a continuous, low velocity layer.      The middle of a layer can also be discovered using a single vertical receiver and finding the place of phase reversal.
Patent CA-2020692-A1 (CA)
Title: Process for the preparation of mono- and oligourethanes
Inventor: REIFF HELMUT
IPC: C07C271/08
Filed: 1990-07-09
Abstract: Mo-3427 LeA 27,021 A PROCESS FOR THE PREPARATION OF MONO- AND OLIGOURETHANES                     ABSTRACT OF THE DISCLOSURE         This invention relates to a process for the preparation of N,N-disubstituted mono- and oligourethanes by the reaction of N-aromatically, N-aliphatically, N-cyclo-aliphatically, and N-araliphatically substituted mono- and oligourethanes with dialkyl carbonates in the presence of at least stoichiometrically equivalent quantities of solid alkali or alkaline-earth carbonate in excess dialkyl carbonate and/or an aprotic organic solvent and in the presence of a phase transfer catalyst.     Le A 27 021
Patent CA-2021792-A1 (CA)
Title: Multi-directionally responsive, dual-status, magnetic article surveillance marker having continuous keeper
Inventor: MONTEAN SAMUEL
IPC: G01V3/08
Filed: 1990-07-23
Abstract: A multi-directionally responsive, dual-status marker for use in electronic article surveillance systems having an alternating magnetic field within an interrogation zone. The marker comprises a piece of a high permeability, low coercive force magnetic material substantially coextensive with a piece of remanently magnetizable material, in which the first piece is configured to exhibit at least two elongated responsive areas adjacent to edges of the piece perpendicular to each other, each area having a narrow width region forming a switching section and adjacent extensive regions forming flux collectors. in a preferred embodiment, the inner edges of all of the regions are defined by a narrow band of removed material, the remaining material in the center thereby being magnetically isolated from the responsive areas. The marker is desensitized by uniformly magnetizing the pace of unmagnetizable material.
Patent CA-2027538-A1 (CA)
Title: A process for the removal of nitrogen oxides from offgases from turbines
Inventor: CARL PETER
IPC: B01D53/56
Filed: 1990-02-05
Abstract: PCT No. PCT/DK90/00030 Sec. 371 Date Oct. 10, 1990 Sec. 102(e) Date Oct. 10, 1990 PCT Filed Feb. 5, 1990 PCT Pub. No. WO90/09228 PCT Pub. Date Aug. 23, 1990.Nitrogen oxides can be removed from turbines by a selective catalytic reduction (SCR) with ammonia with greater efficiency than by prior art technique if the ammonia needed for the reduction of the nitrogen oxides is added before the turbine, preferably in a stoichiometric excess compared to the contents of nitrogen oxides in the exhaust gas. One can employ well-known SCR catalysts and advantageously the exhaust gas after the turbine is passed through a layer of SCR catalyst followed by a layer of a combustion catalyst. The latter expediently consists of metal oxides, preferably selected from copper oxide, manganese oxide and chromium oxide, deposited on aluminum oxide, magnesium oxide, silicon oxide or mixtures thereof.
Patent CA-2028471-A1 (CA)
IPC: B62B17/02
Filed: 1990-10-24
Abstract: Steering skis for snowmobiles and similar vehicles. The ski has a lower surface for contacting the snow and at least one upwardly curved lateral edge in a region of the ski used for support of the vehicle.  The curved lateral edge defines a convex curved snow-engaging surface which merges smoothly with the lower surface of the ski.  The curved edge generates lift during turning of the ski while minimizing drag characteristics of the ski.  The ski is less likely to result in tipping during turns at high speed in deep snow, which improves the safety of the vehicle.  The curved edge produces minimal drag while turning and this allows for more use of the lift generated by the ski.
Patent CA-2029683-A1 (CA)
Title: Soft chewing gum wrapping machine
Inventor: PIANO ANTHONY P
IPC: B65B35/00
Filed: 1990-11-09
Abstract: ABSTRACT    A high speed apparatus for cutting and wrapping soft chewing gum  comprises  a  plurality  of  substantially  parallel  cutters having  cutting  heads  to  cut  the  gum  into  relatively  thin rectangular-shaped pieces.   The cutters are moved to a position where each individually shaped piece of gum is placed into a nest on a wrapping tray with a wrapper  located therebetween.   The cutters are moved in an eccentric ovoid path by a ring wheel and grooved cam wheel arrangement which causes the cutting heads to separate and move back together as they move through a cycle.          During placement of the stick of gum in the nest, a flat side of the shaped piece of gum is urged against the flat bottom of the nest.   The apparatus further comprises an apparatus to complete wrapping the wrapper around the piece of gum.
Patent CA-2030843-A1 (CA)
Title: Process of controlling the film thickness of blow-formed and axially and preferably biaxially stretched tubular films
Inventor: FEISTKORN WERNER
IPC: B29C48/92
Filed: 1990-11-26
Abstract: ABSTRACT            PROCESS OF CONTROLLING THE FILM THICKNESS OF BLOW-FORMED AND AXIALLY AND PREFERABLY BIAXIALLY STRETCHED TUBULAR FILMS           Tubular films made in an extruding and blow-forming plant are collapsed and are subsequently axially and preferably biaxially stretched in that they are re-inflated to form an inflated tubular film or expanded to form a tubular film. That inflated or expanded tubular film is then moved through an oven, from which the film is withdrawn and re-collapsed while moving at a velocity which is higher than the feeding speed in accordance with the desired stretching ratio. In order to ensure that the stretched tubular films have a substantially uniform thickness distribution throughout their periphery, the film thickness of the stretched tubular film which has emerged from the oven is measured around the tubular film before or after it has been collapsed and in dependence on the thus measured thicknesses of the peripheral profile the thickness distribution around the peripheral profile of the tubular film formed in the extruding and blow-forming plant is so controlled that any deviation from the average film thickness of the film which has been stretched in the oven, which deviation has been caused by a non-uniform heating of the film and possibly to other disturbing influences exerted on the film in the oven, will substantially be compensated.
Patent CA-2031229-A1 (CA)
Title: Fluoride removal from sulphuric acid
Inventor: STURGEOFF LYNDA G
IPC: C01B17/90
Filed: 1990-11-30
Abstract: A process for the reduction in fluoride concentration in a fluoride-contaminated sulphuric acid which process comprises treating said sulphuric acid with a silicon compound to produce silicon tetrafluoride, and removing said silicon tetrafluoride to produce a purer sulphuric acid having a substantially reduced fluoride concentration. The process is of particular use for the removal of fluoride from waste sulphuric acid in the copper smelting industry to meet environmental concerns.
Patent CA-2031957-A1 (CA)
Inventor: RAVELLA ALBERTO
IPC: C07C11/24
Filed: 1990-12-11
Abstract: C2+ hydrocarbons can be effectively converted to primarily unsaturated hydrocarbons and hydrogen using microwave radiation in the presence of at least one plasma initiator that is capable of initiating an electric discharge in an electromagnetic field.
Patent CA-2036812-A1 (CA)
Title: Radiation-sensitive positive resist composition
Inventor: HIOKI TAKESHI
IPC: G03F7/023
Filed: 1991-02-21
Abstract: ABSTRACT OF THE DISCLOSURE         A positive resist composition comprising a 1,2-quinone diazide compound and an alkali-soluble resin which comprises a resin (I) obtainable through a condensation reaction of an aldehyde with a phenol mixture containing m-cresol and at least one selected from the group consisting of 2-tert.-butyl-4-methylphenol and 2-tert.-butyl-6-methyl-phenol, which has well balanced properties.
Patent CA-2039350-A1 (CA)
Title: 3d real-time video special effects system and method of operation
Inventor: THIER URI
IPC: G06T3/00
Filed: 1991-03-28
Abstract: PEK:LP     AND METHOD OF OPERATION                    ABSTRACT OF THE DISCLOSURE     Real-time video information is digitized and stored as a plurality of digital pixels in a memory.  A 3D surface is then constructed from a flat source surface by breaking the surface into a plurality of flat polygonal patches and folding, rotating and manipulating the patches in three dimensions.  The constructed object can then be manipulated as an object in three dimensions.  During patch and object manipulation, the special effects system keeps track of the patch vertex locations.  After the object has been created and located, real-time video is painted on the object surface by using the patch vertex locations to retrieve selected source pixels from the memory and to construct a value for each pixel on the object surface from the selected source pixels.
Patent CA-2041210-A1 (CA)
Inventor: DUFRESNE MICHEL
IPC: H04N7/16
Filed: 1991-04-25
Abstract: A method and apparatus of collecting data from a television audience comprising storing in a first memory demographic descriptions of expected viewers of a television receiver, receiving signals from a viewer control operated by a viewer, displaying one or more indicia on a television screen for viewing by the viewer, designated by the character of the signals received from the control, in confirmation of the particular signal received from the control, and storing a signal in a second memory for later access corresponding to at least one form of the designated signal character, which is related to the designation of at least one selected expected viewer as an active viewer.  The television viewer may use his remote control at any time, when the flashing prompt is flashing, or when it is not flashing, to change channels.  There is no channel lock nor is there an annoying on-screen prompt enquiring as to the identity of persons in the viewing audience.
Patent CA-2043590-A1 (CA)
Title: Method of joining threaded non-ferrous pipe sections
Inventor: MCCOY MICHAEL L
IPC: F16L47/16
Filed: 1991-05-30
Abstract: ABSTRACT    A sealing system is provided for composite fabricated pipe sections having threaded connections on the end thereof with said connections being of composite material for use in assembling pipe sections in a piping system.  A two component thermoset polysulfide elastomer in the material's flowable unpolymerized state is coated upon the entire area of the connection threads. The pipe sections are then assembled in a normal fashion with the elastomer prepared connectors to produce the sealing system.  With time, the polysulfide material cross links and forms an uncompressed elastomeric seal along the entire helix length of the threaded connection producing pipe sections with threaded connections that possess greater hydrostatic pressure capacities. Without the requirement of compressing the elastomer to form the hydrostatic seal, the sealing system produces effective seals with a wide range of assemblage torques for the interconnection of the pipe sections; ranging from hand tight to power tight engagements of the connections.  The sealing system allows the connection of pipe sections with or without the aid of tools.  Without a determined interconnection engagement length required to form the seal in the connection, pipe sections may be placed into any rotational positioning to facilitate the assemblage of the piping system.  The sealing system also provides the means to seal the connections of pipe sections with adversely damaged threads.