baber/WOPTO huggingface dataset:
Patent CA-1296952-C (CA)
Title: Detection of exhaust gas spillage from naturally aspirated gas furnaces and naturally aspirated gas hot water heaters
Inventor: MONETTE MICHAEL D
IPC: F23J11/00
Filed: 1988-01-12
Granted: 1992-03-10
Abstract: Abstract of the Disclosure A device for detecting the diversion of gas furnace or gas hot water heater exhaust into a dwelling due to chimney backdrafting detects a sustained rise in the temperature of the gases passing through the draft-diverter orifice. A significant rise in temperature indicates that the above condition has occurred.This temperature rise is recorded only after the condition has persisted for a sufficiently long period of time, thereby avoiding the recording of temporary backdrafting conditions which are not required to be recorded.   The device consists of a high temperature resistant plastic strip or other material with similar conductivity and specific heat qualities with a temperature sensitive color-change material mounted on the surface of the plastic strip at one end of the strip. This strip is attached to the furnace or gas hot water heater in a preferred location with the color-change material facing away from the normal flow of backdrafting exhaust gases. Heat from the backdrafting flow causes the color-change material to change color once the heat in the gas flow has penetrated through the underlying plastic strip. An aerodynamic stagnation zone on the front face of the plastic strip during a backdraft condition prevents the color-change material from changing color prematurely.
Patent CA-1276691-C (CA)
Inventor: DE MAN ERIK
IPC: H03K19/094
Filed: 1988-01-21
Granted: 1990-11-20
Abstract: ABSTRACT OF THE DISCLOSURE      ECL-compatible input/output circuits in CMOS technology which meet very strict ECL level demands and are as independent as possible of temperature and field effect transistor parameter fluctuations.  This is achieved by a control circuit for reference currents of the current mirror circuits.  The control curcuit is composed of a sensor stage, of a comparator, of a low-pass filter and of a reference current source.  Current mirror circuits are also utilized in the driver stages and in the sensor stage.
Patent CA-1321946-C (CA)
Title: Colorimetric gas measuring device
Inventor: HECKMANN JOHANNES
IPC: G01N31/22
Filed: 1988-03-18
Granted: 1993-09-07
Abstract: ABSTRACT         The invention is directed to a colorimetric gas measuring device with an indicator path which is accessible for the gas to be detected via at least one inlet opening and which, however, is otherwise closed off with respect to the ambient.  The colorimetric gas measuring device is improved so that the measuring time is extended and the sensitivity increased while at the same time providing a space-saving configuration.  The gas measuring device is small and convenient to handle and can be carried on the person.  For this purpose, the indicator paths are configured so as to extend in circuitous manner.
Patent CA-1303790-C (CA)
Inventor: HAVENS MARVIN R
IPC: B65D65/40
Filed: 1988-03-28
Granted: 1992-06-16
Abstract: ABSTRACT   Disclosed is a skin packaging film for skin packaging high profile and/or heavy articles.  The film comprises linear ethylene/alpha-olefin co-polymer.  In one embodiment, the film is antistatic and may be employed for skin packaging of electro-static sensitive items such as circuit boards.
Patent CA-1290872-C (CA)
Title: Process for the continuous production in solution of styrene thermoplastic resins
Inventor: MATARRESE SAVINO
IPC: C08F255/04
Filed: 1988-04-06
Granted: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE:        A Process for the continuous production in solution of styrene thermoplastic resins by polymerization of a vinylaromatic monomer and of a vinyl-nitrile monomer in the presence of an elastomer and of a starter, wherein the polymerixation is conducted in two or more steps.  The elastomeric component fed  in solution in the solvent and/or in the monomers,  to the first step,  is subjected to polymerization in this first step and in the subsequent steps at temperatures ranging from 70° to 150°C.  In each step, the reaction mass is gently and homogeneously stirred and the reaction product is caused to flow to a thin film evaporator heated at 150°-300°C.  This process permits to control the elimination of the heat of reaction and to maintain good control of the particle sizes and, at any rate a wide distribution of the grafted chains and of their molecular weights due to a wide distribution of the residence times.  As a result, impact-resistant thermo-plastic styrene resins having a high resistance to atmospheric agents,  and a high resilience and surface brightness, are obtained.
Patent CA-1315704-C (CA)
Title: Apparatus for removing grit
Inventor: WEIS FRANK G
IPC: B01D21/00
Filed: 1988-04-21
Granted: 1993-04-06
Abstract: APPARATUS FOR REMOVING GRIT                       ABSTRACT A grit selector having an upper settling chamber and a lower grit storage chamber.  The settling chamber communicates with the grit storage chamber through an opening in a transition surface therebetween.  An influent flume directs influent liquid directly into a lower portion of the settling chamber.  An effluent flume withdraws effluent liquid from an upper portion of the settling chamber.  The influent flume and effluent flume have a common centerline with the effluent flume being positioned at an elevation above the influent flume.  A baffle member extends into the settling chamber for directing the influent liquid stream outwardly towards a lower portion of the periphery of the settling chamber.
Patent CA-1304512-C (CA)
Inventor: MOORE JOHN D
IPC: H03M7/30
Filed: 1988-05-24
Granted: 1992-06-30
Abstract: -ABSTRACT-A method of compressing text by allocating word tokens to each unique word and phrase tokens to adjacent word tokens, to adjacent phrase tokens or adjacent phrase and word tokens, which occur in the text at least three times and changing the binary character code representation of the text so that the text is represented by phrase and word tokens.       A data processing system for decompressing and displaying the compressed text.
Patent CA-1312061-C (CA)
Title: Guide element structure engageable in sliding contact with a magnetic support
Inventor: BORDIGNON ABRAMO
IPC: G11B15/60
Filed: 1988-05-26
Granted: 1992-12-29
Abstract: ABSTRACT OF THE DISCLOSURE      The  present  invention  relates  to  a  guide  element structure  engageable  in sliding contact  with  a  magnetic support  which comprises a guide  body arrangeable proximate to  a magnetic support and has at least one of its  portions at  the region of contact with said  magnetic  support.  The peculiarity  of  the invention resides in the fact  that  it comprises,   at  least  at  said  portion,  a  plurality  of monofilaments  fixed,  at  one end,  at said  portion,  said monofilaments,  at the free end,  being adapted to engage by contact with said magnetic support.
Patent CA-1329857-C (CA)
Title: Bow-tie tree resistant electrical insulating composition
Inventor: WATANABE KIYOSHI
IPC: C08K5/09
Filed: 1988-06-17
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE       A  bow-tie  tree  resistant  electrical  insulating composition comprises 100 parts by weight of at least one polymer selected from polyolefins and ethylene copolymers, 0.005 - 1.0 part by weight of a metal salt of a fatty acid containing a hydroxyl group in the molecule, and 0.005 -1.0  part  by weight  of  a  fatty  acid  or  a  derivative thereof.
Patent CA-1316341-C (CA)
Title: Friction activiting composition for icy surfaces
Inventor: CANZANI ALBERTO
IPC: C04B41/45
Filed: 1988-07-29
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE            The composition according to the invention is based on the use of an inert porous material which can be natural, artificial or synthetic, granular in form, and weighing less than 1 kg/dm3 in bulk.   The porous granules,  e.g.  of expanded clay or similar, are partially saturated to the extent of 20 - 30% of their weight, with active ingredients which lower the freezing point of water.  The melting additives can be added in the pure state or diluted in water, and there is provision for the addition of about 2% by weight of the melting additive, of anti-acid limiters.  The advantages of the composition with respect to sand are the greater manageability and ease with which it can be spread on icy or snow-bound surfaces; the low specific weight which reduces the tendency to sedimentation in road drains and sewers, and, compared to salt, the almost non-existent corrosive action on ironwork of vehicles and street ironwork.  Ecologically, the composition does not damage the natural vegetative environment.   The optimum results thus obtained are attributed to the synergetic effect of the inert material   (activated  grit)   and  the  melting  additive incorporated in it.
Patent CA-1336714-C (CA)
Title: Quinoline type mevalonolactone inhibitors of cholesterol biosynthesis
Inventor: FUJIKAWA YOSHIHIRO
IPC: C07D405/06
Filed: 1988-08-17
Granted: 1995-08-15
Abstract: A compound of the formula:            (I) wherein R1, R2, R3, R4 and R6 are independently hydrogen, C1-6 alkyl, C1-6cycloalkyl, C1-3 alkoxy, n-botoxy, i-botoxy, sec-butoxy, R7R8N- (wherein R7 and R8 are independently hydrogen or C1-3 alkyl), trifluoromethyl, trifluoromethoxy, difluoromethoxy, fluoro, chloro, bromo, phenyl, phenoxy, benzyloxy, hydroxy, trimethylsilyloxy, diphenyl-t-butylsilyloxy, hydroxymethyl or -O(CH2)?OR19 (wherein R19 is hydrogen or C1-3 alkyl, and ? is 1,2 or 3); or when located at the ortho position to each other, R1 and R2, or R3 and R4 together form -CH=CH-CH=CH-; or when located at the ortho position to each other, R1 and R2 together form -OC(R15)(R16)O-(wherein R15 and R16 are independently hydrogen or C1-3 alkyl); Y is -CH2-, -CH2CH2-, -CH=CH-, -CH2-CH=CH- or -CH=CH-CH2-; and Z is -Q-CH2WCH2-CO2R12,   or   (wherein Q is -C(O)-, -C(OR13)2- or -CH(OH)-; W is -C(O)-, -C(OR13)2- or -C(R11)(OH)-; R11 is hydrogen atom or C1-3 alkyl; R12 is hydrogen or R14 (wherein R14 is physiologically hydrolyzable alkyl or M (wherein M is NH4, sodium, potassium, 1/2 calcium or a hydrate of lower alkyl amine, di-lower alkyl amine or tri-lower alkyl amine)); two R13 are independently primary or secondary C1-6 alkyl; or two R13 together form -(CH2)2- or -(CH2)3; R17 and R18 are independently hydrogen or C1-3 alkyl; and R5 is hydrogen, C1-6 alkyl, C2-3 alkenyl, C3-6 cycloalkyl,    (wherein R9 is a hydrogen atom, C1-4 alkyl, C1-3 alkoxy, fluoro, chloro, bromo or trifluoromethyl), phenyl-(CH2)m- (wherein m is 1,2 or 3), -(CH2)nCH(CH3)-phenyl or phenyl-(CH2)nCH(CH3)- (wherein n is 0,1 or 2).
Patent CA-1322547-C (CA)
Inventor: KOSKOL JOSEPH E
IPC: B65H54/78
Filed: 1988-11-15
Granted: 1993-09-28
Abstract: ABSTRACT OF THE DISCLOSURE        A layered yarn package is formed of continuous filament yarn wads wherein the yarn alternates between compacted and extended lengths by axially compacting the yarn into a length, segmenting the length into alternating extended and compacted lengths then arranging the compacted lengths in a common axial direction one next to the other to form a layer.  The layer may be compressed.  One or more layers may form the package.
Patent CA-1281264-C (CA)
Title: Auger-type tree cutting tool
Inventor: TREMBLAY REJEAN
IPC: A01G23/081
Filed: 1989-01-23
Granted: 1991-03-12
Abstract: ABSTRACT     The present invention relates to a cutting head for use on a tree-felling vehicle.    The cutting head comprises a tree-carrying frame with a cutting tool in the form of a rotor with helically extending cutting teeth. An arm for placement against a standing tree to be cut is pivotally mounted to the tree-carrying frame. A fluid ram is connected between the arm and the tree-carrying frame to bring it in engagement with the tree to be cut so that the rotor progressively cuts the tree and the latter enters the tree-carrying frame.
Patent CA-1295022-C (CA)
Title: Solid state switching device
Inventor: BORKOWICZ JERZY
IPC: H02H9/00
Filed: 1989-01-25
Granted: 1992-01-28
Abstract: ABSTRACT           A solid state switching device allows independent control of the latching and holding currents, and has particular application to telephone systems.  The holding current may be set at a high level so as to return the switching device to the off-state without a large reduction in the current to the circuit embodying the switching device, whereas the latching current may be set at a low level to reduce the heat dissipation in the device just prior to the transition from the latching state to the holding state.  The device, which may be implemented in either linear technology or with discrete components, is a thyristor structure defined by npn and pnp bipolar transistor devices each having its base connected to the collector of the other.  Each transistor device has a resistance between its base and emitter, and in the case of at least one of the transistor devices that resistance varies with the voltage on the collector of the associated transistor device.
Patent CA-1298401-C (CA)
Title: Anti-zero biasing clamp
Inventor: SENDELWECK GENE K
IPC: H04N5/14
Filed: 1989-02-08
Granted: 1992-03-31
Abstract: RCA 84,915 ABSTRACT A diode clamp in a kine driver circuit clamps the voltage at the grid (G1) element of a picture tube to a level derived from the voltage at the cathode element of the picture tube.  Deriving the grid (G1) voltage from the cathode voltage ensures that if the kine driver amplifier saturates, the voltage applied to the grid (G1) will always be less than that applied to the cathode.  Thus, excessive beam current is prevented from flowing immediately following cold cathode turn-on, which excessive beam current would otherwise cause a phenomenon known as "focus flutter".
Patent CA-1329119-C (CA)
Title: Cytotoxic therapy
Inventor: GOLDENBERG MILTON D
IPC: A61K47/48
Filed: 1989-03-23
Granted: 1994-05-03
Abstract: Abstract of the Disclosure Anticancer, antimicrobial and autoimmune disease, and anti-organ rejection therapy using cytotoxic agents is improved using cytokines to prevent, mitigate or reverse adverse radiation-induced or drug-induced toxicity, especially to hematopoistic cells.  Cytotoxic agents can include radioisotopes, drugs, toxins and even unconjugated antibodies.  A preferred cytokine is IL-1.  Higher doses of cytotoxic agens can be administered and tolerated by the patient and dose-limiting marrow toxicity can be prevented, palliated or reversed using adjunct cytokine therapy.
Patent CA-1326691-C (CA)
Inventor: BOND IRVIN D
IPC: B21D43/12
Filed: 1989-04-12
Granted: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE         A conveyor belt apparatus is mounted between the upper and lower die shoes of a press for removing a metal blank from the press.  The conveyor has magnetic means for magnetically attracting the workpiece to the underside of the belt as it is being moved from the press at right angles from the direction the sheet metal is fed into the press.
Patent CA-1334624-C (CA)
Inventor: SATAKE TOSHIMI
IPC: G11B7/249
Filed: 1989-06-12
Granted: 1995-03-07
Abstract: Near infrared absorbing composition and material comprising a specific thiourea compound and a copper compound and/or a lead compound.  The composition and material of this invention provide an uniform absorption over a near IR-region without decreasing other properties.
Patent CA-1338536-C (CA)
Inventor: KASZAS GABOR
IPC: C08F255/08
Filed: 1989-07-19
Granted: 1996-08-20
Abstract: A cross-linked composition produced by exposing a mixture including a telechelic polyisobutylene base polymer which carries multiple terminal acrylate groups as a part thereof, a reactive diluent, and in some cases, a high-energy sensitizer, to high-energy radiation. The base polymer may also comprise a block copolymer which has polyisobutylene, and polydiene blocks as, for example, polyisoprene, and in which the polydiene blocks, advantageously partially cyclized, carry multiple acrylate groups as a part thereof.  Among other things, the compositions have particular application in the formation of films useful in the electronic, biomedical, specialty adhesive, sealant, and other fields.
Patent CA-1325049-C (CA)
Title: Automatic travelling apparatus
Inventor: ASANUMA NOBUYOSHI
IPC: G05D1/02
Filed: 1989-08-03
Granted: 1993-12-07
Abstract: Abstract of the Disclosure Disclosed is an automatic travelling apparatus which permits: determination of a permissible travelling area on the basis of images taken by an image pickup device or video camera, showing the sight of the area appearing ahead of the vehicle: steering control of the vehicle to go into a target course in the permissible travelling area; and selection of a predetermined way of a selected crossing or branch in the target course.  These complicated determination and control can be easily performed without fail.     Also, when an image pickup device or video camera take images of the area extending ahead of the vehicle for determining a permissible travelling area, a wide-angle camera, a telescopic range camera and an ordinary camera are selectively used to meet particular situations for example, taking pictures of a crossing, zigzag way or straight long way.  This selective use of cameras of different characteristics permits correct identification of particular roads with those stored in the map storage.
Patent CA-1313562-C (CA)
Title: Electrochromic device
Inventor: YAMADA MASAYUKI
IPC: G02F1/155
Filed: 1989-08-10
Granted: 1993-02-09
Abstract: ABSTRACT OF THE DISCLOSURE        An electrochromic device comprises a first electrode layer, an intermediate layer including an electrochromic layer, a second electrode layer, the first electrode layer, intermediate layer and second electrode layer being laminated in succession, and an electrode member connected to one of the first and second electrode layers and extending in a predetermined direction perpendicular to the direction of lamination of the first electrode layer, intermediate layer and second electrode layer.  The resistances R1, R2 respectively of the first and second electrode layers and the internal resistance R3 of the intermediate layer satisfy predetermined conditions to achieve uniform coloration.
Patent CA-1330166-C (CA)
Title: Selectively actuatable lighter
Inventor: FAIRBANKS FLOYD B
IPC: F23Q2/16
Filed: 1989-08-24
Granted: 1994-06-14
Abstract: ABSTRACT A child resistant lighter device is disclosed which includes a body defining reservoir for containing a combustible gaseous medium such as butane, and having a valve arranged to he selectively actuated between a normally closed position and an open position which permits the exit of the gaseous medium. Such child resistant lighter can selectively produce sparks at a location proximate to the gaseous medium exit to ignite the gaseous medium, and a safety mechanism prevents actuation of the valve to the open position when sparks are produced. Such child resistant lighter device embodies a resiliently releasable safety latch which prevents the actuation of the valve actuator to the open position. The safety latch is selectively movable to a position out of interference with the valve actuator, so that the gaseous medium may be released and ignited by the sparks. The safety latch is resiliently structured and mounted such that once a flame is produced and the valve actuator is released, the safety latch returns to its closed or locked position to prevent actuation of the valve actuator to the open position by prevention of the pivotal motion. To "re-use" the lighter, the safety-latch must again be moved to the open or unlocked position so that the valve actuator can be opened for subsequent ignition of the gaseous medium. Such mechanism is difficult for a young child to light, but is capable of actuation by adults.
Patent CA-1325128-C (CA)
Inventor: HURLBURT JOSEPH C
IPC: A01D67/00
Filed: 1989-09-25
Granted: 1993-12-14
Abstract: METHOD AND APPARATUS FOR MOUNTING AN IMPLEMENT TO A TRACTOR                       ABSTRACT OF THE DISCLOSURE A mechanism for mounting an implement to a tractor is disclosed wherein the implement is provided with an articulated frame pivotally movable through a hydraulic cylinder to position a pair of mounting arms in alignment with attachment brackets affixed to the prime mover.  Each mounting arm is provided with a threaded member threadably engaged with the end thereof and extending outwardly therefrom for insertion through an opening in the attachment brackets.  A detachable collar is secured onto the threaded member by a removable fastener positioned on the opposing side of the attachment brackets from the mounting arm. A rotation of the threaded members into the mounting arms causes engagement of the detachable collar with the attachment bracket to draw the mounting arms into engagement with the attachment brackets.  Wedge members are affixed to the mounting arms and the attachment brackets to cam the mounting arms to effect alignment between the threaded members and the corresponding openings.  The implement is secured on the tractor by engagement of the mounting arms with the attachment brackets and support members spaced forwardly therefrom and retained in position by engagement of the collars with the attachment brackets.
Patent CA-1334560-C (CA)
Inventor: GILL ROBERT A
IPC: C01F11/18
Filed: 1992-08-19
Granted: 1995-02-28
Abstract: A two component binder system comprising a highly dispersible, high specific surface area precipitated calcium carbonate (colloidal PCC) and a cationic starch, especially a cationic potato starch, for improving filler retention, opacity and strength during papermaking.
Patent DK-152987-C (DK)
Inventor: GOUTILLE MAURICE
IPC: B65D88/52
Filed: 1983-03-21
Granted: 1988-10-24
Abstract: PCT No. PCT/CH82/00086 Sec. 371 Date Mar. 16, 1983 Sec. 102(e) Date Mar. 16, 1983 PCT Filed Jul. 9, 1982 PCT Pub. No. WO83/00317 PCT Pub. Date Feb. 3, 1983.The container comprising a base (1), two side panels (2,3), one front panel (4), one back side which opens (5) and a roof (6) can be assembled from and dismounted into the above listed components. Means are provided (18-21, 25a, 27a) for fastening the side panels (2,3) and the front panel (4) to the base (1) and to the roof (6). The three panels are provided with vertical reinforcements (7, 8, 9, 10). Means are provided (25, 27) for fastening the front panel (4) to the side panels (2, 3) by the abutting reinforcements (7-10). The back side (5) of the container consists of two doors (36, 37) which are hinged on the abutting reinforcements (7, 9). The fastening device (18-21) which holds the side panels together with the base and the roof can also be used to fasten the roof directly to the base when the container is dismounted; there is enough room between the roof and the base to store the side panels (2,3), the front panel (4) and the doors (36, 37). The bulk of the container is considerably reduced when the container is dismounted and its components packed together, which in turn considerably reduces the cost of returning the empty containers; the container does not have any small components likely to be lost when it is returned; the container is very simple to assemble and to dismount; the fastening devices (18-21, 25a, 27a) are easy to operate; the bulk of the dismounted container with its components packed together is preferably equal to one sixth of the original container.