baber/WOPTO huggingface dataset:
Patent CA-2036226-A1 (CA)
IPC: C08K3/30
Filed: 1991-02-13
Abstract: THE PRODUCTION OF THIN, PHOSPHORESCENT NYLON YARN                ABSTRACT    A man-made phosphorescent yarn comprised of multifilaments with a diameter of less than approximately 20 microns, per filament, and a method of manufacturing the yarn. The yarn filament is made up of a body portion consisting of a polymeric material which is at least partially translucent and a sufficient quantity of phosphorescent particles in the body portion. The particles have a maximum particle size of 10 microns which is less than one half of the diameter of the yarn filaments and the particles have a mean size greater than 5 microns. The yarn is manufactured by mixing appropriately sized phosphorescent particles with a suitable polymer and extruding the resultant mixture to form yarn, and utilized for textiles.
Patent CA-2037799-A1 (CA)
Title: Backwash method and apparatus
Inventor: RYAN LEO
IPC: B01D29/62
Filed: 1991-03-08
Abstract: BACKWASH METHOD AND APPARATUS                           ABSTRACT         A method and apparatus for cleaning filter elements that are vertically positioned within a filter vessel that has a tube sheet dividing the filter vessel into a lower filter compartment and an upper plenum compartment.  A fixed volume of backwash liquid is rapidly directed from the plenum compartment above the tube sheet through the filter elements into the filter compartment that has been drained of liquid.  The rapid movement of the backwash liquid is a result of a pressure differential between the plenum compartment and the filter compartment.
Patent CA-2042546-A1 (CA)
Inventor: TAKAHASHI TADASHI
IPC: H02H7/12
Filed: 1991-05-14
Abstract: A method and apparatus for protecting thyristors in a power converter from overvoltages.  Voltage detectors determine if the forward voltage of each thyristor has increased in the converter.  If such an overvoltage occurs during a predetermined period after the conduction of the thyristor, forced triggering of all the thyristors prevent damage to the thyristors.
Patent CA-2042703-A1 (CA)
Title: Double cut
Inventor: WELK PAUL
IPC: B23D63/00
Filed: 1991-05-16
Abstract: ABSTRACT          Hack saw blades, jig saw blades and band saw blades that are used for cutting metals and hard substances are useful only as long as their cutting teeth are sharp.  Since the teeth of said blades cannot be re-sharpened, blades with dull teeth are discarded and wasted even though the metal of the blade is still good and useful.  This invention doubles the usefulness of hack saw blades, jig saw blades and band saw blades by manufacturing them with a row of cutting teeth on each of the two narrow edges of said blades.
Patent CA-2043104-A1 (CA)
Title: Quinolinecarboxylic acid derivatives, antibacterial agent containing the same and process for preparing said compounds
Inventor: KONDO HIROSATO
IPC: C07D519/00
Filed: 1991-05-23
Abstract: Abstract of the Disclosure:     Novel quinolinecarboxylic acid derivatives of the formula:                 wherein Z is                                   or   in which R1 is hydrogen atom, a halogen atom, hydroxy or a lower alkyloxy; R2 is a halogen atom, hydroxy or a lower alkyloxy; R3 is a lower alkyl; and R4 is hydroxy or a di(lower alkyl)amino, and a pharmaceutically acceptable salt thereof, which have excellent antibacterial activities and are useful as an antibacterial agent, a pharmaceutical composition containing the same, and process for preparing the same.
Patent CA-2043274-A1 (CA)
Title: High density connector
Inventor: DOUTRICH RAY C
IPC: H01R12/71
Filed: 1991-05-24
Abstract: TITLE OF THE INVENTION                    HIGH DENSITY CONNECTOR     The present invention relates to electrical connectors for electrically connecting components and circuits on or in two parallel circuit boards and, more specifically, for electrically connecting components and circuits on or in two parallel circuit boards having a high density of interconnections.
Patent CA-2043699-A1 (CA)
Inventor: THELOHAN SYLVIE
IPC: C03C3/062
Filed: 1991-05-31
Abstract: La présente invention concerne des compositions de fibres minérales susceptibles de se dégrader au contact d'un milieu physiologique. Des compositions avantageuses comprennent les constituants suivants, selon des proportions pondérales définies ci-après : SiO2 37 à 58 % Al2O3 4 à 14 % CaO 7 à 40 % MgO 4 à 16 % P2O5 1 à 10 % Fe2O3 0 à 15 % (fer total exprimé sous cette forme) la somme CaO + MgO + Fe2O3 demeurant supérieure à 25 %, ainsi que les oxydes Na2O et K2O, dont la somme des pourcentages reste inférieure à 7 %.
Patent CA-2043857-A1 (CA)
Inventor: COMPAGNONE ROCCO
IPC: E04H3/28
Filed: 1991-06-04
Abstract: P R É C I S Système mécanique constituant une unité motrice modulaire pour le déplacement programmé d'une structure mobile par rapport à un plan d'appui de référence, et ce système mécanique est caractérisé en ce qu'il comporte: (a) un cadre formé d'au moins deux flancs latéraux reliés entre eux le cadre étant solidaire de ladite structure mobile; (b) un montant principal articulé sur ledit cadre par une première extrémité la seconde extrémité opposée reposant sur ledit plan d'appui de référence; (c) un vérin de manoeuvre articulé par une extrémité sur ledit cadre et articulé par l'extrémité opposée sur la seconde extrémité du dit montant, la manoeuvre du vérin permettant le déplacement angulaire du montant et l'ensemble du montant et du vérin constituant avec le cadre un triangle déformable; (d) un ensemble de transmission porté par ledit cadre et constitué d'un arbre longitudinal situé dans un plan parallèle au plan de déplacement du vérin, d'un arbre transversal orthogonal à l'arbre longitudinal, les deux arbres étant cinétiquement connectés entre eux d'une part et connectés d'autre part à un pignon commandant la manoeuvre du vérin.
Patent CA-2044303-A1 (CA)
Title: Emballages thermosoudables pour batteries au lithium
Inventor: DUVAL MICHEL
IPC: H01M2/02
Filed: 1991-06-11
Abstract: Deux feuilles métalliques sur chacune desquelles un ruban continu d'un film en polyethylène est fixé par adhésion.  La batterie au lithium est intercalée entre ces deux feuilles métalliques et les deux films de polyéthylène sont joints entre eux par thermoscellage.  Ce dispositif fait en sorte qu'aucune substance externe ne puisse venir en contact avec la batterie au lithium.
Patent CA-2050849-A1 (CA)
IPC: H04M1/02
Filed: 1991-09-06
Abstract: ABSTRACT OF THE DISCLOSURE A folding portable telephone set comprises a plurality of sequentially articulated flat segments each having the shape of a plate.  A second flat segment is jointed at its one edge to one edge of a first flat segment provided with a transmitter and a switching unit by a hinge joint, a third flat segment provided with a receiver is jointed at its one edge to the other edge of the second flat segment by a hinge joint, and a fourth flat segment provided with a display unit is jointed at its one edge to the other edge of the third flat segment by a hinge joint.  The total length of the third and fourth flat segments as extended flat in a plane is smaller than the length of the second flat segment.
Patent CA-2054299-A1 (CA)
Title: Apparatus for electrodepostiing metal
Inventor: DEWITT ROBERT D
IPC: C25D1/04
Filed: 1991-10-28
Abstract: ABSTRACT          An apparatus for electrodeposition of metal comprising an anode assembly and a moving cathode having a plating surface.  The anode assembly and the cathode are spaced apart a predetermined distance to define an interelectrode gap therebetween.   The anode assembly is comprised of an anode cradle having a non-conductive surface of a predetermined contour facing the cathode,  and a plurality of deformable metallic anodes of general uniform thickness.  The anodes have a configuration which nearly conforms to the contour of the non-conductive surface of the anode cradle. The deformable anodes are secured to the anode cradle such that the anodes are deformed into mating engagement with the non-conductive surface of the anode cradle to conform to the predetermined contour thereof.  Means are provided for connecting the anodes to a source of electrical power.
Patent CA-2054582-A1 (CA)
Inventor: HOLLOWAY CHRISTOPHER J G
IPC: H04L9/32
Filed: 1991-10-31
Abstract: The invention supplements the use of a conventional authentication token such as a MAC or DSG, to provide very strong evidence of the origin of an electronic message. A new   type   of   authentication   token,   known   as  the Non-Repudiation Vector  (NRV) is attached to each message sent across a data network. The NRV cryptographically links each message sent or received by a particular data processor on the network to previous and subsequent messages handled by   that   data   processor,   to   create   a   chain   of cryptographically linked messages. The burden of proof for the repudiation of a message is transferred to the sender of a  message,  who  must  demonstrate  how  the  sending data processor could have moved through the time period during which the disputed message was sent, without generating the NRV corresponding to the disputed message.
Patent CA-2055295-A1 (CA)
Inventor: FECTEAU JEAN G
IPC: G06F12/109
Filed: 1991-11-12
Abstract: Method and means are provided for simulating a contiguous data space within a computer memory, and for placing and accessing data objects of various sizes within the simulated contiguous data space. Multiple, sub-data spaces are concatenated in such a way that each page and each sub-data space in the contiguous data space are uniquely identified. Data objects are placed in the contiguous data space and at the first reference to a page of the data object, only the segment containing the referenced page in the contiguous data space is mapped to the database storage disk. Once a data space page is mapped, the operating system can read the page into memory without requesting a disk operation from the database manager. On modifying a page, if the database disk page location is changed, the contiguous data space page is re-mapped without changing the page address in the data space. Also, modified data pages are re-written to the database storage disk in an ongoing manner set by the user, instead of at intervals set by the operating system.
Patent CA-2056356-A1 (CA)
Title: Interruption handling system
Inventor: UENO HARUHIKO
IPC: G06F9/38
Filed: 1991-03-19
Abstract: An interruption processing system enables a basic CPU resource using process to be executed asynchronously, enabling an interruption handler to be easily created.          Interruption handling of the basic CPU resource using process enables an original program to be resumed after a corresponding interruption handler process is terminated for a CPU resource using process dependent interruption factor.          The interruption processing system comprises a queuing unit for determining whether an instruction stored in an instruction buffer designates a synchronous process or an asynchronous process and for queuing the instruction when it is an asynchronous process.  When more than one asynchronous process which has been queued is terminated unprocessed or with exceptions in the case where an interruption is generated in a synchronous processing unit or an asynchronous processing unit or an interruption from the outside of a CPU is detected, contents and termination methods of all asynchronous processes terminated unprocessed or with exceptions at the time of the generation of the interruption are displayed in order to resume a program prior to the generation of the interruption.
Patent CA-2057789-A1 (CA)
Title: Time-accounting system and method comprising means for the generation of codes at instants computed by a secret algorithm
Inventor: ASCHENBROUICH MARC
IPC: G06Q20/06
Filed: 1991-12-17
Abstract: ABSTRACT OF THE DISCLOSURE A device that can be used to check the authenticity of time-accounting systems and devices, and notably of time-accounting devices for reckoning periods of parking regulated by rules. The system is constituted by a plurality of boxes, each held by a distinct user, each box comprising computation means that determine atleast two secret codes, the changing from one secret code to another being done substantially at one and the same instant for all of boxes and secret codes being identical for all of boxes substantially at the same instant to enable a checker to ascertain the authenticity of boxes, code-changing instant resulting from a secret computation.
Patent CA-2062131-A1 (CA)
Inventor: WIRTH GARY J
IPC: F16K35/10
Filed: 1992-03-02
Abstract: An enclosure (55) for a valve handle (71) formed of two enclosure-halfs (5) of identical structure hinged together to form a clamshell enclosure for the handle of the valve.
Patent CA-2064488-A1 (CA)
Title: Electrically tunable fiber ring laser
Inventor: CHUNG YUN C
IPC: H01S3/13
Filed: 1992-03-31
Abstract: A compact all-fiber, electrically tunable ring laser includes a diode-pumped erbium-doped fiber amplifier. The frequency of the laser is tuned by a fiber Fabry-Perot (FFP) etalon that is electrically tuned. An in-line optical isolator is used in conjunction with the FFP to eliminate undesired reflections. A second FFP with a narrow free spectral range (FSR) can be used in conjunction with a first FFP with a wide FSR.
Patent CA-2064490-A1 (CA)
Title: Spring biased inertial latch for vehicle seat assemblies
Inventor: HUGHES DANIEL
IPC: B60N2/22
Filed: 1992-03-31
Abstract: A low cost, light-weight inertial latching mechanism for use in latching an automotive vehicle seatback member with respect  to  a  cooperating  seat  member  under  collision  or collision-like   conditions  wherein  high  acceleration   or deceleration of the vehicle occurs, is disclosed.  The latching mechanism has first and second hinged members pivotally mounted on the seat and seatback members about a common first pivot.  The first hinged member has a gear rack adapted to engage a pawl means that is mounted on the second hinged member.   The pawl means  moves  between  a  first  latched  position,  a  second transitional position, and a third unlatched position.  A spring means is operationally interconnected between the second hinged member and the pawl means and is adapted to bias the pawl means toward said third unlatched position until forces of acceleration or deceleration above a design threshold value occur.  Above that value, the inertial forces of the pawl means cause relative movement of the pawl means past the second transitional position toward the first  latched position.   In this  first  latched position, the pawl means engages the gear rack to latch the first hinged member with respect to the second hinged member.
Patent CA-2066575-A1 (CA)
Title: Process for feeding catalyst to fluidized bed for vapor phase polymerisation
Inventor: KUBO KUNIMICHI
IPC: C08F2/00
Filed: 1991-07-19
Abstract: A process for feeding a powdery catalyst with a gas intermittently to a high-pressure fluidized bed reactor for the vapor phase polymerisation of olefin, wherein the cross section of a catalyst feed pipe is reduced midway through the pipe to thereby make continuous catalyst feed possible and prevent the formation of a lump polymer.
Patent CA-2072024-A1 (CA)
Title: Intumescent fire-retardant and electrically-conductive coating material
Inventor: HASTINGS OTIS H
IPC: C09D5/24
Filed: 1990-10-19
Abstract: The present invention provides a fire-retardant coating material which includes a fluid intumescent material and conductive particles of various sizes dispersed or suspended therein for particular applications. The fluid intumescent material includes a foaming agent, a blowing agent gas source, a carbonific or charring agent, a film-forming binder, a solvent and, in some cases, a pigment or filler. The conductive particles are formed of a substrate and a conductive coating.
Patent CA-2078070-A1 (CA)
Title: Rubber composition
Inventor: YAMADA HIROSHI
IPC: C08K3/04
Filed: 1992-09-11
Abstract: ABSTRACT OF THE DISCLOSURE    A rubber composition comprises 100 parts by weight of at least one rubber component selected from natural rubber and diene type synthetic rubbers and 20 - 70 parts by weight of carbon black having:          (i)   cetyltrimethyl ammonium bromide adsorption specific surface area (CTAB) of 60 - 110 m2/g, (ii)  DBP oil absorption amount of 135 - 200 ml/100 g, (iii) the ratio of CTAB (m2/g)/IA (mg/g) of 1.15 - 1.40 where IA is an iodine adsorption amount, and (iv)  an average aggregate gap diameter (Dm angstrom) of -4.00 x [CTAB (m2/g)] + 767 or more.
Patent CA-2078261-A1 (CA)
Title: Gas riser apparatus and method
Inventor: LORENZ JAMES M
IPC: F16L47/00
Filed: 1992-09-15
Abstract: GAS RISER APPARATUS AND METHOD               Abstract of the Disclosure An improved gas riser comprises a pipe nipple, casing, adaptor sleeve, tube, and stiffener. The adaptor sleeve features an internal stop which accurately positions an end of the plastic tube before the tube is plastically deformed into grooves in an internal surface of the adaptor sleeve.  Each of the first and second ends of the adaptor sleeve can be manufactured in different diameters to fit pipe nipples and casings that are required by different code regulations.  The method of assembling the gas riser comprises inserting a first end of the adaptor sleeve into a second end of a pipe nipple, inserting a second end of the adaptor sleeve into a first end of the casing, welding the second end of the pipe nipple and the first end of the casing to the adaptor sleeve, inserting a stiffener into a tube end, inserting the tube end into the adaptor sleeve, and pulling a mandrel through the assembly, and forming a seal by plastically deforming the stiffener and the tube into grooves on an interior surface of the adaptor sleeve.
Patent CA-2078696-A1 (CA)
Title: Overvoltage and overcurrent protective circuit with high earth balance
Inventor: JAKI IVAN
IPC: H02H9/04
Filed: 1991-03-27
Abstract: ABSTRACT OF THE DISCLOSURE An overvoltage and overcurrent protection for an exchange terminal circuit which has two input terminals (a, b) and a number of output terminals (T1-T).  The input terminals are connected to a two-wire line and the output terminals are connected to equipment for the transmission of analog as well as digital signals over the line via the exchange terminal circuit.  The exchange terminal circuit comprises an impedance matching network having a transformer at the primary as well as secondary sides of which there are networks that are symmetric in respect to earth.  The network at the primary side comprises two primary winding connected in parallel with the capacitor (C).  When a surge pulse has charged the capacitor to the rated voltage of the varistor the varistor goes conductive thereby increasing the current through the primary winding until the core of the transformer is satured.  At the secondary side of the transformer there is a varistor (V2) and Zener diodes (Z5-Z8) which act to stepwise reduce the surge pulse as transformed to the secondary to a voltage which is safe for the connected equipment.
Patent CA-2079522-A1 (CA)
Inventor: ADACHI YUKISHIGE
IPC: B60C15/06
Filed: 1992-09-30
Abstract: ABSTRACT       An object of the present invention is to provide a pneumatic radial tire that has the carcass layer composed of a single ply of carcass cords to reduce the tire weight and improve  the  tire  production  rate  and  which  insures  a sufficiently high lateral spring constant to maintain good maneuverability.  According  to  the  present  invention,  the pneumatic radial tire comprises annular tread portion, a pair of sidewalls that extend from opposite ends of the tread portion in the radial direction of the tire, a pair of bead portions that are provided at the ends of the sidewalls and each of which has a bead core embedded therein, a carcass layer composed of carcass cords that are arranged in the radial direction of the tire as they are folded around the bead core at each end and which extend through both sidewalls and tread portion, and breaker layers that are arranged in the external radial part of the carcass layer.  The carcass layer is formed of a single ply of carcass cords.
Patent CA-2082221-A1 (CA)
Title: Dr1
Inventor: SANDERS H D
IPC: G09B15/06
Filed: 1992-08-12
Abstract: (ss. 21,34 and 142) ABSTRACT   This invention is a device for practice and aiding in the study of music. It is a manually operated hand held tool for TRUMPET players.
Patent CA-2082616-A1 (CA)
Inventor: BRUNET PASCAL
IPC: B64D43/00
Filed: 1992-11-10
Abstract: DISPOSITIF DE FIXATION D'UNE GLACE SUR UN SUPPORT SOUMIS A VIBRATIONS NOTAMMENT UN ECRAN DE VISUALISATION DE PLANCHE DE BORD D'AVION Dispositif de fixation d'une glace sur un support soumis à vibrations notamment un écran de visualisation de planche de bord d'avion. Dispositif de fixation (1) d'une glace en verre (2) entre deux éléments support rigides (3 et 4) formant cadres par l'intermédiaire de moyens de serrage mécaniques (10) et particulièrement destiné aux environnements vibratoires importants, caractérisé en ce que la glace (2) est pressée entre les deux éléments de support (3 et 4), par l'intermédiaire de deux joints souples périphériques (5) (6) disposés respectivement entre chacune des faces internes (3a, 4a) desdits éléments (3, 4) et une face correspondante (2a, 2b) de la glace (2) et dont la compression est contrôlée en interposant entre les éléments supports (3, 4), au moins une cale rigide (8) d'épaisseur réglable sur laquelle viennent en butée lesdits éléments (3, 4) lors d'une action, à leur couple nominal, sur les moyens de serrage mécaniques (10), pour une compression choisie des joints souples (5, 6). Figure 2.
Patent CA-2084871-A1 (CA)
Title: Pickup truck storage box
Inventor: PUGH GEORGE D
IPC: B60R9/00
Filed: 1992-12-08
Abstract: ABSTRACT OF THE DISCLOSURE    A pickup truck storage box for use in the cargo bed of a pickup truck is disclosed.   It has left and right edge brackets that receive left and right upstanding box panels; a center stake that fits between inner edges of the box panels to keep the outer edges of the box panels seated in the edge brackets; a channel member that fits over the upper edge of the truck bed's forward wall; a hinged, locking lid attached to the channel member;  a hinged cross-member between the channel member and the upper, inner edges of the box panels; and, cap strips that cover the top edges of the box panels.
Patent CA-2087909-A1 (CA)
Title: Pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
Inventor: FENTON PATRICK
IPC: H04B1/7085
Filed: 1993-01-22
Abstract: A receiver for pseudorandom noise (PRN) encoded signals consisting of a sampling circuit, multiple carrier and code synchronizing circuits, and multiple digital correlators.      The sampling circuit provides digital samples of a received composite signal to each of the several receiver channel circuits. The synchronizing circuits are preferably non-coherent, in the sense that they track any phase shifts in the received signal and adjust the frequency and phase of a locally generated carrier reference signal accordingly, even in the presence of Doppler or ionospheric distortion. The correlators in each channel form a delay lock loop (DLL) which correlates the digital samples of the composite signal with locally generated PRN code values to produce a plurality of (early, late), or (punctual, early-minus-late) correlation signals. Thus, during an initial acquisition mode, the delay spacing is relatively wide, on the order of approximately one PRD1 code chip time. However, once PRN code synchronism has been achieved, the code delay spacing is narrowed, to a fraction of a PRN code chip time. There are several advantages to this arrangement, especially in environments wherein multipath distortion in the received composite signal is of the same order of magnitude as a PRN code chip time.