baber/WOPTO huggingface dataset:
Patent CA-2051598-A1 (CA)
Title: Multiple resolution ros
Inventor: GUERIN JEAN-MICHEL
IPC: G03G15/04
Filed: 1991-09-17
Abstract: Abstract A raster output scanner which can be instantly varied between the most common spot densities, such as 240, 300, 400 and 600 spots per inch in the slow scan direction. The scanner produces a plurality of scans per inch, either by scanning with one beam or several simultaneous beams, the number of scans per inch being a common denominator of all of the spot densities. For example, for the above spotdensities, 1200 scans per inch would be required. Then each scan is independently modulated so that the correct number of spots per inch are generated. Thus, for example, if 4 consecutive scans are used to create one spot, then the spot density will be 300 spots per inch.
Patent CA-2056544-A1 (CA)
Title: Procedure to increase the temperature in a closed circuit heating system, working on any kind of calorific energy basis
Inventor: CASANOVAS PAU U
IPC: F24D7/00
Filed: 1991-11-28
Abstract: ABSTRACT Procedure to increase the temperature in a closed circuit heating system, working on any kind of calorific energy basis.      The invention refers to a procedure to succeed in increasing the temperature in  a closed  circuit  heating  system,  to which heating  radiators  or  some  other  calorific  elements  can  be connected,   and   through  which  it  recirculates   any  fluid, consisting  of  submitting  it  to a relative vacuum  or negative pressure  and obtaining with  it  an increase of  the temperature proportional to its intensity;  the system  has only  got to work with the relative vacuum  or negative pressure,  always under the atmospheric pressure at the sea level.
Patent CA-2058105-A1 (CA)
Title: Spatial filter
Inventor: STROLLE CHRISTOPHER H
IPC: H04N5/926
Filed: 1991-12-19
Abstract: A method and apparatus uses a spatial filter for a television recording and playback system using a spectral folding process, wherein the signal is modulated onto a folding carrier of (f h/2, f v/2), for separating the two-dimensional image spectral domain of the television signal into first and second regions that are either passed or attenuated, the partition between the regions being selected such that every point in the passed region has a mirror point mirrored about (f h/4, f v/4) in the attenuated region: and reconstructing the passed region after playback.
Patent CA-2058234-A1 (CA)
Title: Vibrator
Inventor: FIORINI EMILIO
IPC: A61H23/02
Filed: 1991-12-20
Abstract: A B S T R A C T             A temple message device has a resilient frame, straps for attachment, temple massaging pads and a vibrator, vibrating in the direction to cause the pads to massage the temples.
Patent CA-2058268-A1 (CA)
Inventor: KAULE WITTICH
IPC: D21H23/24
Filed: 1991-12-20
Abstract: Abstract The present invention relates to a method for producing papers of value having embedded security elements, in par-ticular safeguarding threads with characters or optically active structures in the form of hologram, diffraction or interference structures, and to apparatus for carrying out the method. The invention is characterized by the fact that the security elements are incorporated true to side during papermaking and are also embedded in the paper of value so as to be accessible over the entire surface, if desired, whereby the paper surface forms a plane with the surface of the security element.
Patent CA-2061162-A1 (CA)
Inventor: KAWASHIMA SHINICHI
IPC: G08B3/10
Filed: 1992-02-13
Abstract: In a radio pager, a power-backup memory is provided for storing messages. On receiving a paging signal, a message contained in it is stoted into the memory and the user is alerted with a first sound pattern. A specified label is attached to the stored message if it is not answered by the user within a prescribed interval. When the pager is turned off for battery savings purposes, the message is kept in the memory and when it is turned on again, the memory is searched. If a message attached with the specified label is detected, the user is alerted with a second sound pattern which is different from the first sound pattern. The different sound allows the user to quickly recognize that he is alerted by an uncompleted page.
Patent CA-2062088-A1 (CA)
Title: Game ball
Inventor: WILLIAMS DONALD E
IPC: B29C41/22
Filed: 1992-02-28
Abstract: GAME BALL                      Abstract of the Disclosure A game ball is made by rotationally molding a hollow spherical core from a blend of foamed Surlyn ionomer resins and low density polyethylene resin.  The center of the hollow spherical core may be filled with foamed polyurethane, and the spherical core may be covered by a leather cover.  If desired, hollow ceramic microspheres or beads can be added to the resins before molding.
Patent CA-2062464-A1 (CA)
Inventor: REHBERG HEINZ
IPC: B43M5/00
Filed: 1992-03-06
Abstract: The apparatus for raising the flaps of envelopes on the feeds of letter closing machines uses a suction plate in order to pass the open envelope flaps past the moistening apparatus.
Patent CA-2068747-A1 (CA)
Inventor: CAULKETT PETER W R
IPC: A61P9/08
Filed: 1992-05-15
Abstract: ABSTRACT                          Heterocyclic Compounds A compound of the formula I       I   wherein: A1 and A2 are each independently N or CT in which T is hydrogen or (1-4C)alkyl; R1 and R2 are each independently hydrogen, (1-6C)alkyl, or (1-4C)alkanoyl; Xl and X2 are each independently O, S or NH; and L is a (3-7C)cycloalkylene group or a (1-8C)alkylene chain optionally interrupted or extended by a group selected from phenylene, phenyleneoxy or oxyphenyleneoxy, the phenylene portion of said group being unsubstituted or substituted by one of halogen, hydroxy and (1-4C)alkoxy, provided that all heteroatoms in the group X1-L-X2 are separated from one another by at least two carbon atoms; or a pharmaceutically acceptable salt thereof, processes for preparing the compounds and pharmaceutical compositions containing them.  The compounds are useful as adenosine antagonists.
Patent CA-2074377-A1 (CA)
Inventor: KOWALSKI JOSEPH W
IPC: F16B37/04
Filed: 1991-07-01
Abstract: A channel nut (1) which can be economically made for securing parts to metal framing (7) having side flanges (9a, 9b) with inwardly turned, hook-shaped lips (11) defining a slot (S) therebetween. The channel nut comprises an elongate body having a base (23) with inside (23a) and outside (23b) faces, opposite sides (25) and opposite ends (27), a width less than that of the slot and a length greater than the width of the slot. The base includes side flanges (29) and is preferably rhomboid in shape. A tapped hole (21) extends through the base.
Patent CA-2074462-A1 (CA)
Title: Holder for compact disc and like cassettes
Inventor: ERNETOFT ULF
IPC: G11B33/04
Filed: 1992-07-22
Abstract: ABSTRACT     A holder for Compact Disc and like cassettes in the form of a short rectangular-cross-section channel where one of the side flanges of the channel extends further from the base of the channel than the other to provide a main support face for a cassette which may be inserted into and held in the channel, the other, shorter, flange being dimensioned to overlap only the fixed edge part of the face of a cassette which has been provided with an opening flap hinged to the fixed part of the cassette so that the flap may be opened with out interference by the shorter flange of the holder, the holder, on its base side, remote from the channel flanges, being provided with a protrusion by which the holder may be securely held, the protrusion being provided with a cylindrical aperture, oriented perpendicular to the length of the channel and the large side of a held cassette, so that a plurality of holders may be stacked on a common shaft and pivoted, in the plane of held cassettes, with respect to each other, the inner face of the shorter flange being provided with a series of parallel ribs running lengthwise with respect to the length of the channel.
Patent CA-2078198-A1 (CA)
Inventor: BEESON ROBERT B JR
IPC: H04W92/14
Filed: 1992-09-14
Abstract: This invention relates to apparatus and methods for providing cellular mobile telecommunications service in accordance with the requirements of the Global Systems for Mobile Communications (GSM) standard. A modular switching system is provided which performs the functions of the mobile switching center plus those of a home location register, authentication center, visitor location register, and equipment identity register. The latter functions are advantageously spread among the modules of the switching system, thus avoiding the getting started cost of expensive dedicated data bases. A wireless global switching module advantageously switches mobile communications control messages among the modules of the system and between the modules and the base station systems, and terminates signaling links between the mobile switching center and the base station systems.
Patent CA-2078302-A1 (CA)
Inventor: FARR ANDREW F
IPC: A61F2/958
Filed: 1992-09-15
Abstract: An  inflatable  angioplasty  balloon  is  formed  in  an unstressed  configuration  for  inflation  into  an  expanded configuration and deflation into a collapsed configuration.          The balloon has a body portion and two hollow end portions, with the end portions being attached to opposite ends of the body portion.     In the balloon's unstressed configuration,  the body portion has three flat folding regions extending the length of the body portion.  Successive folding regions are separated from each other by curved reinforcing regions.   The end portions are configured and oriented to guide the folding regions of the balloon into a pleated, collapsed configuration when the interior of the balloon is evacuated.
Patent CA-2081611-A1 (CA)
Title: Information display system for electronically reading a book
Inventor: OHARA MAKOTO
IPC: A63H33/38
Filed: 1992-10-28
Abstract: An information display system having a housing with a location for receiving a document such as a book is provided.  A location detection circuit is mounted on the housing adjacent the document and can determine any subjective selection of a location on the document.  The document can have a plurality of indicia.  When such indicia is selected, a control circuit can retrieve the information from a read only memory and appropriately display the information in an audible or visual manner.
Patent CA-2083908-A1 (CA)
Title: Polybutylene compatibilizers
Inventor: SATO KYOSAKU
IPC: C08L23/08
Filed: 1992-11-26
Abstract: Polybutylene Compatibilizers ABSTRACT OF THE INVENTION Polyethylene has a number of desirable properties. However for some thin film applications it is desirable to increase the stiffness of the film. This may be accomplished by incorporating a polymer of a vinyl aromatic monomer into the alloy. Such two component blends have a low impact resistance. The impact resistance of the alloy may be significantly increased, without any significant loss of stiffness by further incorporating into the alloy a polymer based on butylene -1.
Patent CA-2085058-A1 (CA)
Title: Fiber gypsum plasterboard and manufacturing process thereof
Inventor: MOISSET JACQUES
IPC: E04C2/04
Filed: 1992-12-10
Abstract: Fibre-reinforced gypsum panel made up of at least one layer of fibre-reinforced gypsum in which the cellulose fibres are dispersed and which is optionally used in combination with other layers with identical or different physicochemical characteristics, this layer of fibre-reinforced gypsum being characterised in that its density is moderate, even in the absence of lightening materials and in that the fibres dispersed in the said layer are preferentially oriented in the lengthwise direction of the panel so that the flexural breaking strength of the layer in the lengthwise direction is higher than the flexural breaking strength in the transverse direction of the layer.
Patent CA-2087508-A1 (CA)
Inventor: KRUSE THOMAS E
IPC: B62K5/025
Filed: 1993-01-18
Abstract: A personal mobility vehicle (10 or 80) having a very low center of gravity and compact overall size which facilitates travel in narrow hallways and in negotiating sharp turns as into a doorway along a narrow hall. The vehicle (10 or 80) includes a generally horizontally disposed preferably circular, disc-shaped frame (12 or 82) supported in close proximity above the ground by a steerable, motor-driven front or rear wheel (14 or 84) and two spaced rear or front wheels (20/22 or 100/102). A battery arrangement is connected to and supported by the frame (12 or 82) and operably connected between a control lever (44 or 162) in electrical communication with an electronic circuit (Figure 17 or 80) and the motors for propelling and steering the rear wheel 84. A seat (16 or 85) is provided whereby a user's feet may be comfortably supported on the frame (12 or 82). A circular cushioning ring (36 or 92), either fixed or preferably rotatably mounted and extending radially from the perimeter of the frame (12 or 82), contacts fixed objects such as walls, doorways and the like to facilitate tight maneuvers not heretofore possible with other such vehicles. Outrigger type anti-scuff and anti-tip wheels (118 and 122) may also be provided with vehicle 80.
Patent CA-2091858-A1 (CA)
Title: Pneumatic radial tire having two nonmetallic chippers
Inventor: GABOR JENNIFER L
IPC: B60C15/06
Filed: 1993-03-17
Abstract: Abstract of the Disclosure PNEUMATIC RADIAL TIRE HAVING TWO       NONMETALLIC CHIPPERS       The present invention relates to a pneumatic tire characterized by two chippers which reinforce each bead and each chipper comprises a nonmetallic cord reinforced ply.
Patent CA-2092134-A1 (CA)
Title: Distributed routing network element
Inventor: MAZZOLA ANTHONY J
IPC: H04L12/56
Filed: 1993-03-22
Abstract: A network element comprises a plurality of routing circuits coupled by internal communication circuitry. Each routing circuit comprises one or more external ports for communicating with external devices, one or more internal ports for communicating with other of the routing circuits, a database for storing address and path information received via the internal and external ports and circuitry for retransmitting address information received from an external device to other of the routing circuits.
Patent CA-2093064-A1 (CA)
Inventor: WAGGAMON DENNIS W
IPC: H01H47/00
Filed: 1993-03-31
Abstract: A circuit (14) which gives a continuous voltage output indication of whether a contact (12) is open or closed. The circuit (14) senses the voltage across the contact (12) to detect whether the contact (12) is open or closed. When there is a significant voltage, the circuit (14) indicates that the contact (12) is open. When the voltage is negligible, the circuit (14) indicates that the contact (12) is closed. Alternatively, the current through the contact (12) is conducting or not. The circuit (14) can be used to indicate welding closed of a relay contact (12) in which case power to the load (10) can be turned off or the contact (12) can be opened by other than normal means. One application is to discontinue closing movement of a garage door when the motor relay switch does not open as desired, but there are innumerable other applications. <IMAGE>
Patent CA-2094007-A1 (CA)
Inventor: HAIR ROBERTA A
IPC: E01C5/00
Filed: 1993-04-14
Abstract: An interlocking paving stone which has in certain embodiments a twelve-sided main section and an eight-sided   tail   section,   and   certain   other embodiments,  has a twenty-sided main section and a sixteen-sided  tail  section,  which  main  and  tail sections are integral with each other, coplanar, and symmetrical about a longitudinal plane perpendicular to the paving stone which bisects it into two equal longitudinally extending sections.   The relationship of the lengths of the sides to each other and angles they define are such that a large number of different interlocking patterns  are possible which exhibit a high degree of interlock along both opposite edges and both opposite ends of the stones.
Patent CA-2094790-A1 (CA)
Inventor: FABIAN MARK EDWARD
IPC: H02G3/12
Filed: 1993-04-23
Abstract: An outlet box for a conventional electrical receptacle or like includes a rear support bracket extending rearwardly from one side thereof. The bracket is generally L-shaped and can include a weakened portion, to enable it to be bent. The bracket abuts an inner face of a wall panel, to prevent rearward movement of the outlet box. At the front, a frame can be attached to or integral with the side wall of the outlet box, for the mounting of communication cables. For this purpose, the frame can include one or more tabs to which communication cables can be initially secured. The tabs are deflectable internally, to abut the inner face of a wall panel around the outlet box and the frame, to prevent forward movement of the outlet box.
Patent CA-2098133-A1 (CA)
Title: Phosphinyloxy propanaminium inner salt derivatives
Inventor: ANDERSON ROBERT C
IPC: C07F9/113
Filed: 1993-06-10
Abstract: ABSTRACT:     PHOSPHINYLOXY PROPANAMINIUM INNER SALT DERIVATIVES        The invention concerns the compounds of formula (I)             (I) where the substituents have various meanings, in free acid form or in salt, physiologically hydrolysable ester or pro-drug form.   They can be prepared by various procedures, e.g. coupling accompanied by oxidation or thiolation and hydrolysis or thiolysis, or by reduction to amino of a nitro substituent on an aromatic ring.   They possess hypoglycemic activity and are thus indicated for use in the treatment of diabetes.
Patent CA-2099605-A1 (CA)
Title: Two-component epoxy resin/zinc dust priming coat for steel surfaces
Inventor: ZIPPERLEN SABINE
IPC: C09D5/00
Filed: 1991-10-25
Abstract: In order to obtain a two-component epoxy resin/zinc dust priming coat which for ecological reasons requires little or no solvent, the powdery or flaky zinc, reactive in water, is dispersed in a water-free, water emulsible epoxy resin binder (component A).      Component A is mixed immediately before being applied with a water-diluted or water-dissolved polyamine hardener (component B).
Patent CA-2100511-A1 (CA)
Inventor: MIKIC FRANK
IPC: B25B13/02
Filed: 1993-07-14
Abstract: Abstract of the Disclosure A speed wrench has a short jaw and a long jaw inter-connected by a throat, the jaws respectively having short and long driving surfaces which are generally parallel but which may be very slightly inclined with respect to each other.  The throat has a generally flat surface portion adjacent to the short driving surface and inclined at an angle of at least 120° thereto and connected thereto by an arcuate recess in the short jaw.  This generally flat surface portion may be slightly convex having a radius greater than twice the distance between the driving surfaces.  The remainder of the throat is arcuate and is shaped and dimensioned so that it will not contact a fastener engaged with the driving surfaces.  Open-end wrench and adjustable wrench versions are disclosed, and in the former the support surface portion of the throat has a length approximately one-half the side dimension of an associated fastener.  In the adjustable wrench version, at least the long driving surface may be serrated.
Patent CA-2101322-A1 (CA)
Title: Method, identification device and verification device for identification and/or performing digital signature
Inventor: NACCACHE DAVID
IPC: G07F7/10
Filed: 1992-01-11
Abstract: The present invention relates to a method, identification device and verification device for identification and/or performing digital signature which allows zero-knowledge access control. For many applications, e.g. smart cards for Pay-TV purposes, credit cards, passports, dongels or other kind of electronic keys, unforgeable systems for access control or digital signature are required.  Such access control and signature systems may include public keys. But in many of such public key systems the key management becomes very complicated when the number of users increases. The invention uses the fact that it is difficult to compute roots mod n when factoring of n is unknown. The invention is based on the identity: xd(x-1)d = 1 mod n which is computed and verified between an identification device and a verification device. An authority records seed data, the modulus n, a pseudo-random function and a set of numbers derived from roots modulo n on an identifier device. The public key directory is replaced by a unique transmission of seed data from the identifier to a verifier, which will give after a proper processing both, the identity information for the identifier and public keys.
Patent CA-2104092-A1 (CA)
Inventor: SERVI LESLIE D
IPC: H04L9/32
Filed: 1993-08-13
Abstract: A wireless communication device using a verification protocol for verifying the identification of the wireless device by a wireless network control station in the presence of eavesdroppers is disclosed. Upon receiving a call request from a wireless device claiming a particular identity, the wireless network control station sends a mask consisting of binary digits in a random order. The wireless device is expected to respond to this mask with a reply that is consistent with both the password contained in the device and the mask. Specifically, the bits of both the password and the mask are "ANDed" and the result transmitted to the wireless network control station as the reply.
Patent CA-2104845-A1 (CA)
Title: Aqueous polyurethane resin dispersion, processes for its preparation, and its use in aqueous coating compositions
Inventor: VOGT-BIRNBRICH BETTINA DIPL CH
IPC: C09D175/06
Filed: 1993-08-25
Abstract: Abstract An aqueous coating composition which is self-drying or is crosslinked by external agents, processes and dispersions for its preparation and its use.  The coating composition comprises: I)     40 to 100% by weight of a film-former in the form of an aqueous dispersion of one or more polyurethane resins having a number-average molecular mass (Mn) of from 2500 to 1,000,000 and a content of ionic groups, groups which can be converted to ionic groups, and/or hydrophilic groups of from 5 to 200 meq per 100 g of solid resin, and at least one CM-acid group per molecule and a OH-number of 0 to 100, wherein some or all of the Ch-acid groups can be reacted with one ore more compounds which are able to react with at least two CH-acid groups for chain-lengthening, and II)    60 to 0% by weight of one or more crosslinkers based on compounds which can react with at least two CH-acidic groups, based on formaldehyde condensation resins and/or polyisocyanates containing free or blocked isocyanate groups, the percentages by weight of I) and II) relating to the resin solids content and adding up to 100% by weight, and optionally pigments, fillers, organic solvents and/or conventional coating additives.
Patent CA-2104893-A1 (CA)
Title: Multi-stage polymers having alkali-soluble and alkali-insoluble stages
Inventor: GILL SUSAN R
IPC: C08F265/04
Filed: 1993-08-26
Abstract: ABSTRACT   Water-resistant multi-stage polymers having an alkali-insoluble polymer and an alkali-soluble polymer are prepared by sequential emulsion polymerization of a monomer mixture having acid functionality in the alkali-soluble stage and, optionally, a polyfunctional compound, the alkali-insoluble polymer having, optionally, an amine functionality, such that the resulting polymer has an alkali-insoluble polymer stage and an alkali-soluble polymer stage.   Films prepared using the multi-stage composition and method of this invention are particularly useful in semi-transparent wood stain binders.