baber/WOPTO huggingface dataset:
Patent CA-2042791-A1 (CA)
Title: Method of electrophotographically manufacturing a luminescent screen for a color crt having a conductive contact path
Inventor: WETZEL CHARLES M
IPC: H01J9/227
Filed: 1991-05-16
Abstract: RCA 86,064 ABSTRACT             The method of electrophotographically manufacturing a luminescent screen on a substrate of a color CRT includes the steps of forming a photoreceptor by sequentially coating the substrate to form a conductive layer and an overcoating of a photoconductive layer, establishing an electrostatic charge on the photoconductive layer, and exposing selected areas of the photoconductive layer to visible light to affect the charge thereon. Then, the photoconductive layer is developed by the application of suitable triboelectrically-charged, dry-powdered screen structure materials. At least one wear-resistant, conductive contact patch is provided on a peripheral portion of a surface of the substrate. The contact patch has a first portion which underlies at least one of the layers of the photoreceptor and is in electrical contact with the conductive layer, and a second portion which extends from the photoreceptor. The contact patch is utilized during the manufacturing process to electrically ground the conductive layer during charging of the photoconductive layer. The contact patch also is utilized to measure the charge on the photoconductive layer during the developing process. Additionally, the contact patch provides an electrical contact, in the finished tube, between an aluminized layer on the screen and at least one support for a shadow mask.
Patent CA-2046373-A1 (CA)
Title: Process for selective epoxidation of unsaturated (meth)-acrylates, novel functional (meth)acrylates thus obtained, and application to the synthesis of novel polymers
Inventor: CAUBERE PAUL
IPC: C08F20/32
Filed: 1991-07-05
Abstract: A process for the opening of the epoxide function of a (meth)acrylic epoxide of formula (V): in which: (i) the (meth)acrylic epoxide is reacted with a cpd. of etherate complexes and boron trifluoride, acid salts (in the presence of the corresp. acid), halides of trialkyl- or trialkoxy-silanes - and ketones in the presence of cationic resins. (R<1>)(CH2)C-C(O)-X-R<4> (V) X = O, S, NH, NR<3> and O-(CH2)n; R<3> = 1-12 alkyl; n = 3-16; R<1> = H or 1-5C alkyl; R<4> = 2-20 C hydrocarbyl including alkyl, cycloalkyl, mono- or poly-cyclic heterocycle-alkyl or alkylaryl; the hydrocarbon gp. comprises an oxiran gp. in or at the end of the chain (for alkyl or alkylaryl) or as an endo or exo-cycle gp. (for cyclo-alkyl or hetero-cycloalkyl). R<4> may also be glycidyl, 2-oxymethyl-bicyclo-Ä2.2.1Ühept-5(6)yl or epoxy dicyclo-pentenyl- oxyethyl.
Patent CA-2046506-A1 (CA)
Inventor: LABRIE JEAN M
IPC: F24F13/28
Filed: 1991-07-09
Abstract: The invention relates to a filter attachment adapted to be positioned in place of the conventional return air grille in a forced air system comprising, a rectangular box housing having a grille at one end of the housing adapted to receive and support a filter element. The dimensions of the housing are such as to define a space between the filter element and the free end of the housing. Since the filter element is provided at the end of the return air duct remote from the blower it is possible to dispense with the filter element adjacent the blower.
Patent CA-2046626-A1 (CA)
Title: Photographic processing
Inventor: RIDER CHRISTOPHER B
IPC: G03C5/31
Filed: 1990-02-01
Abstract: In known photographic processing apparatus, quality of the photographs produced can be adversely affected by drift in the paper processor of the apparatus. One cause of drift is incorrect replenishment of the chemicals used in the paper processor. In processing apparatus which utilise only small volumes of chemicals, drift can be caused by replenishment rates not matching the dye formed on the prints being processed, and an operator would need to take steps to adjust the processor. Described herein is an improved method of controlling the replenishment rate of chemicals in photographic processing apparatus. The method comprises deriving a control signal from the image to be exposed on to photographic material and using the derived signal to control the replenishment rate of the chemicals.
Patent CA-2046870-A1 (CA)
Title: Wrist worn heart rate monitor
Inventor: RIGHTER WILLIAM H
IPC: A61B5/332
Filed: 1990-02-14
Abstract: A wrist worn heart rate monitor (100) senses a noisy biosignal with one sensor (104A) in contact with the user's finger and another sensor (104B) in contact with the user's wrist. The sensed signal is modified by a filter (112), analog to digital converter (116) and digital filter (264). A correlator (272) and QRS detector (286) are used to determine characteristics of a first segment of the modified signal. A match filter (300) and learned user reference (206) are used to match a second segment of the modified signal with the determined characteristics of the first segment to produce a processed signal. The QRS detector (286), an interval judge (292), and a momentum machine (202) determine the heart rate from the processed signal. A performance predictor (260) predicts how well the heart rate monitor (100) will perform with an individual user.
Patent CA-2048742-A1 (CA)
Inventor: RIDYARD DENIS R A
IPC: D06P3/32
Filed: 1991-08-08
Abstract: Dd.35885 ABSTRACT                              Dyes Dyes of Formula (1) which are useful for the coloration of e.g. cellulosic materials and leathers.       (1) wherein:      NiPc is a nickel phthalocyanine radical;    r  has a value from 1 to 3 inclusive; m  has a value from 1 to 3 inclusive; p  has a value from 0 to 1 inclusive; R1  is H, alkyl, substituted alkyl, aryl or substituted aryl; R2, R3 and R4  are each independently H, C1-6-alkyl or substituted C1-6-alkyl; A is phenylene, substituted phenylene, C1-6-alkylene or substituted C1-6-alkylene; Q  is a labile substituent; B  is phenylene, phenylene substituted by 1 or 2 sulpho groups or phenylene substituted by an alkyl or alkoxy group;                                                          Dd.35885 Z  is H or alkyl;  and X and Y  are each independently H, alkyl, alkoxy, halogen, carboxy or sulpho; provided that r+m+p does not exceed 4.
Patent CA-2051971-A1 (CA)
Title: Photosensitive recording material
Inventor: KONRAD KLAUS P
IPC: G03F7/021
Filed: 1991-09-20
Abstract: Abstract of the Disclosure A    photosensitive    recording    material comprising  a  substrate;  a  photosensitive  layer comprising  a  diazonium  salt  polycondensation product, a compound polymerizable by free radicals, a photoinitiator and a polymer binder; and a topcoat which contains a water-soluble polymer which has low permeability for atmospheric oxygen and a water-soluble hydrogen phosphate, in particular a primary ammonium phosphate, sodium phosphate or potassium phosphate provides high photosensitivity,  a long shelf life and a low tendency to stick.   It is suitable in particular for producing planographic printing plates giving a large number of prints.
Patent CA-2052325-A1 (CA)
Title: Protective plug for a distributor strip utilized in telecommunications systems, particularly in telephone private branch exchanges
Inventor: KNOLL RUDOLF
IPC: H01T4/06
Filed: 1991-09-26
Abstract: A housing for a protective plug including a surge arrester is composed of a pedestal-like lower portion and of an upper portion which is joined of one piece thereto via film hinges. The upper portion is preferably composed of two halves that, for closing the protective plug housing are pivoted towards one another and mechanically joined to one another by appropriate interlock elements. The lower portion contains receptacle chambers for contacts that, proceeding from a base, comprise a double spring contact downwardly in the plug-in direction and a clamp terminal in the upward direction. Three identical contacts are present that are each respectively connected via their clamp terminals to terminal pins of the surge arrester. A pin-shaped projection extends from the upper side of a distributor strip to serve as cooperating contacts for the double spring contacts. Each such contact also has a pin-shaped projection extending from the bottom side for connection to switching equipment. Also, such pin-shaped contacts may be insulation-pierce contacts.  The contact element comprises an offset between the center line of the double spring contact and the actual terminal of the terminal legs of the surge arrester that are in alignment. Given receptacle chambers that are arranged offset relative to one another, the surge arrester can be introduced thereinto on a straight line without a deformation of its terminal legs adapted thereto when the individual contact elements are introduced into the receptacle chambers in a defined, mutually turned position.
Patent CA-2052546-A1 (CA)
Title: Skin protector for use with hip spica casts
Inventor: WATSON DIANE
IPC: A61F5/00
Filed: 1991-09-30
Abstract: Abstract This invention relates to a skin protector for patients with hip  spica  casts. There  is a major  problem of urine and feces being trapped beneath the cast and causing injury to the skin. A skin protector is provided which encircles the customary opening in the cast and comprises a sheet of impermeable material folded and adhered to the skin of the patient and to the cast.
Patent CA-2052760-A1 (CA)
Title: 1-(3,4-dihydro-2-oxo-1h-quinolina-6-yl)-2-[4-(2-phenylethyl )piperidin-1-yl] ethanol and -ethanone, their preparation and their therapeutic application
Inventor: FROST JONATHAN R
IPC: A61P1/08
Filed: 1991-10-17
Abstract: ABSTRACT       A compound which is an ethanol or ethanone derivative of general formula (I)   in which X represents CO or CHOH, or is an addition salt thereof with an acid, and, when X represents CHOH, is in the form of a pure enantiomer or a mixture of enantiomers, can be used for the treatment and prevention of cerebral disorders.
Patent CA-2053851-A1 (CA)
Title: Systeme de communication cellulaire integre
Inventor: MALLINCKRODT ALBERT J
IPC: H04W36/14
Filed: 1991-03-19
Abstract: Système de télécommunications cellulaire à spectre étalé, fonctionnant en mode AMRC (accès multiple par répartition de code), ayant des noeuds de surface et de satellite et utilisant le codage à correction aval des erreurs pour améliorer le gain et la sélectivité effectifs.  Le centre de commande réseau du système (12) gère la répartition de haut niveau des appels vers les ressources régionales du système.  Les centres de commande des noeuds régionaux (14) sont raccordés au centre de commande réseau du système (12) et gèrent la répartition des appels vers les noeuds au sol.  Les noeuds au sol (16), commandés par l'un des centres de commande de noeuds régionaux (14), reçoivent les appels par lignes terrestres, les étalent, les modulent et les émettent.  Les centres de commande des noeuds de satellite (18) sont également raccordés au centre de commande réseau (12) et transmettent les appels étalés et multiplexés vers le satellite désigné (20).  Les unités d'utilisateur (22) reçoivent les signaux en provenance des noeuds au sol ou de satellite.  Une fonction d'entrelacement numérique des données réduit l'évanouissement des signaux.  Une commande de puissance d'émission adaptative (188) compense les variations d'intensité de signal.  Un bus intercellule (90) de noeud de satellite (20) raccorde les multiples cellules.
Patent CA-2054312-A1 (CA)
Title: Synergistic agents
Inventor: FOSTER STEPHEN J
IPC: A61K31/535
Filed: 1991-10-28
Abstract: A B S T R A C T                            SYNERGISTIC AGENTS           The invention relates to synergistic agents for the treatment of inflammatory or arthritic conditions which comprise one of a selected group of inhibitors of the enzyme 5-lipoxygenase in conjunction or admixture with an inhibitor of the enzyme cyclooxygenase.  Conveniently the 5-lipoxygenase inhibitor is, for example, 6-[(3-fluoro-5-[4-methoxy-3,4,5,6-tetrahydro-2H-pyran-4-yl]phenoxy)methyl]-1-methyl-2-quinolone or 4-[5-fluoro-3-(4-methyl-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-7-ylthio)phenyl]-4-methoxytetrahydropyran and the cyclooxygenase inhibitor is selected from indomethacin, flurbiprofen and diclofenac.  The invention also relates to a pharmaceutical composition containing said synergistic agent and to the use of said agent in the manufacture of a medicament for the synergistic treatment of inflammatory or arthritic disease.
Patent CA-2054905-A1 (CA)
Title: Method and device for controlling the thickness of an electrodeposited coating on a metallic plate or sheet
Inventor: CAUWE BRUNO
IPC: C25D21/12
Filed: 1991-11-04
Abstract: ABSTRACT   "Method and device for controlling the thickness of an electrodeposited coating on a metallic plate or sheet"         A method and device for controlling the thickness of a coating electrodeposited in an electrolytic plating bath ( 14) onto at least one side (1, 2) of a metallic plate or sheet (3) forming a cathode and travelling in a predetermined direction between at least two anodes (5, 6) having each a surface (7, 8) which extends at a substantially constant distance from the plate (3), the surface of an anode situated on one side of the plate (3) being at least partially opposite to the surface of an anode situated on the other side, which anodes (5, 6) are maintained substantially at a same potential and the active area of the suface (7, 8) of at least one anode on the concerned side of the plate (3) is adjusted in said predetermined direction according to the desired coating thickness.
Patent CA-2058244-A1 (CA)
Title: Polyester film and photosensitive material
Inventor: HIRAOKA TOSHIHIKO
IPC: C08G63/18
Filed: 1991-12-20
Abstract: ABSTRACT OF THE DISCLOSURE     A polyester film comprising a polyester whose dicarboxylic acid copolymerized component contains (i) an aromatic dicarboxylic acid having a metal sulfonate and/or a derivative thereof and (ii) a polyetherdicarboxylic acid represented by the following chemical formula (a) and having a mean molecular weight in the range of 600 to 20000 and/or a derivative thereof.      R1OOCCH2-(O-R2)n -OCH2COOR3   (a) Where, "R1" and "R3" are H or alkyl groups each having a carbon number of 1 to 8, "R2" is alkylene group having a carbon number of 2 to 8 and "n" is a positive integer.  The polyester film has excellent transparency, mechanical properties and dimensional stability such as those of a PET film and an excellent water absorption property such as that of a TAC film.           Therefore, when the film is used as a base film for a photosensitive material, a good curl-extinguishing property as well as good transparency, mechanical properties and dimensional stability of the material can be realized.
Patent CA-2058948-A1 (CA)
IPC: C12R1/685
Filed: 1990-06-13
Abstract: Disclosed are methods for the recovery and purification of naturally produced chymosin. In particular, disclosed are methods for the recovery and purification of chymosin from aqueous solutions containing chymosin, pepsin and other contaminants.
Patent CA-2061273-A1 (CA)
Title: Magnetic stripe reader arrangement
Inventor: GROVES DAVID H
IPC: G06K7/08
Filed: 1992-02-14
Abstract: ABSTRACT OF THE DISCLOSURE         A reading head mounting arrangement is disclosed.  The arrangement comprises a base having a top surface and extending from a side thereof an upright mounting member for mounting of a reading head in proper spaced relationship from the top surface of the base for reading of a information containing stripe attached to a card.  Preferably, the base has downwardly projecting portions at either end thereof to provide on and off ramps for a credit card being slid over the base, whereby when the arrangement is installed in a magnetic stripe reading terminal having a slot for passage of a credit card past a magnetic stripe reading head, the change in elevation of the base relative to the remainder of the slot provides a user of the terminal with positive feedback that the card is properly positioned in the slot.  Accuracy in positioning the strip fox movement past the magnetic head is predetermined during the manufacture of the mounting arrangement.  The arrangement is used for mounting of a magnetic read head which may then be utilized in a terminal for providing authorization by a card issuer of the use of the card.
Patent CA-2066956-A1 (CA)
Inventor: PIM KENDALL A
IPC: F16L5/00
Filed: 1992-04-23
Abstract: An integrally molded housing having outwardly directed, spaced-apart arms thereon for mounting within or attachment to a panel is disclosed.  The arms are located on the body portion of the housing such that a distance slightly less than the thickness of the panel in which the housing is to be received exists between the end of each arm and a circumferen-tial flanged surface on the housing.  As the housing is being received through the panel, the arms are deflected inwardly and then spring outwardly causing a surface on the end of each arm to engage a surface on a complementary keyway in the panel.  Another surface is provided on the end of each arm to prevent  the  disengagement  of  the  arm  from  the  surface surrounding   its   adjacent   complementary   keyway   upon longitudinal movement of the housing toward the panel.  The housing can be readily removed from the panel by the applica-tion of inwardly directed pressure on the arms.
Patent CA-2069011-A1 (CA)
Title: Odour remover
Inventor: RODRIGUEZ JOHN
IPC: E03D9/04
Filed: 1992-05-19
Abstract: ABSTRACT           A process for the removal of toilet odour near the source; at the toilet bowl or at the toilet seat, eliminates the current problem that without adequate ventilation, toilet odours remain present for a time until they are able to disperse in the air to the degree of not being noticable.  I have found that the current odour problem can be overcome by incorporating a toilet odour removal ventilation system within the toilet bowl or in the toilet seat. By having the ventilation system near  the source of the toilet odours, the toilet odours are vented to the outside of the building before having a chance to disperse into the air of the bathroom.  The toilet odours are drawn into the ventilation system via air ports to the air passage cavity to a receptive hose, pipe or duct by a blower to exhaust to the outside of the building via a hose, pipe or duct.
Patent CA-2070535-A1 (CA)
Title: Austenitic steel
Inventor: LEVIN FELIX L
IPC: C22C38/00
Filed: 1992-06-05
Abstract: AUSTENITIC STEEL          ABSTRACT            The invention relates to a high-silicon-content corrosion-resistant austenitic steel, characterized by alloying contents (in % by weight) of max. 0.2   % C 10 to 25  % Ni 8 to 13   % Cr 6.5 to 8  % Si 0 to 10   % Mn and/or Co max. 0.010 % S max. 0.025 % P   residue iron and the usual admixtures and impurities due to manufacture.            The steel is suitable as a material for the production of corrosion-resistant articles for the handling of highly concentrated hot sulphuric acid, highly concentrated hot nitric acid and other strongly oxidizing media, such as chromic acid, in the form of rolled plates, strips, pipes, rods, wires and other forms of product.
Patent CA-2072009-A1 (CA)
Inventor: GEKE JUERGEN
IPC: C09K23/42
Filed: 1990-12-13
Abstract: USE OF A COMBINATION OF NON-IONIC SURFACTANTS               Abstract of the Disclosure The present invention relates to the use of a com-bination of non-ionic surfactants, containing (a)  at  least  one  alk(en)yl-ethoxylate  having  the general formula (I) R1-O(CH2CH2O)n-H                  (I) wherein R1 represents a linear or branched alkyl group  or alkenyl group having from 6 to 18 carbon atoms or a cyclic alkyl group having from 5 to 6 carbon atoms and  n represents a number within the range of from 2 to 12, and (b)  at   least   one   alk(en)yl-ethoxylate-propoxylate having the general formula (II) R2-O-(CH2CH2O)p-A-H             (II) wherein R2 represents a linear or branched alkyl group or alkenyl group having from 6 to 18 carbon atoms or a cyclic alkyl group having from 5 to 6 carbon atoms,  p represents  a  number within the range of from 2 to 10, and A represents a group of the type -(CH2-CH(CH3)-O)q- and -(CH(CH3)-CH2-O)r-, with the sum  (q + r)  being a  number within the range of from 2 to 8, while the ratio by weight of the components a : b is within the range of from 10 : 1 to 1 : 10, for cleaning hard surfaces.
Patent CA-2072716-A1 (CA)
Title: Marking device with vibrating yieldable writing tip
Inventor: CHRISTEN RICHARD P
IPC: B43K7/12
Filed: 1992-06-29
Abstract: Abstract of the Disclosure A marking device which includes a hand-held housing and electrically powered means for vibrating the housing.   An ink cylinder having a writing tip at is end is slidably supported within a cartridge casing,  and a  spring biases the cylinder outwardly on the casing.  The casing is supported on the housing of the marking device.
Patent CA-2072819-A1 (CA)
Title: Linear egr tri-bearing
Inventor: LOCKWOOD MARK S
IPC: F02M25/07
Filed: 1992-06-30
Abstract: An exhaust gas recirculation valve assembly for controlling the recirculation of exhaust gas in an internal combustion engine having a base with an exhaust gas chamber formed therein, a valve assembly having a valve member mounted within the exhaust gas chamber for metering the flow of exhaust gas therethrough, and a valve stem extending out of the chamber through an opening therein, a one piece bearing having upper, intermediate, and lower bearing members for precise positioning of the valve member within the exhaust gas chamber, and a valve stem support assembly for mounting the valve stem relative to an actuator. The intermediate and upper bearing portions operate to deflect exhaust gas, escaping from the exhaust gas chamber and traveling along the valve stem of the valve member, from impinging on the actuator.
Patent CA-2072847-A1 (CA)
Title: Counterweight assembly for crawler tractor
Inventor: JENSEN TONY A
IPC: B62D49/08
Filed: 1992-06-30
Abstract: ABSTRACT OF THE DISCLOSURE       A crawler tractor is disclosed with a counterweight assembly which affords optimum weight distribution and traction for operation on steep slopes and grades. The assembly includes a counterweight body having a shank which is carried by a housing mounted by a support arm weldment on the rear end of the tractor. The shank is releasably engaged with the housing. Hydraulic actuators are provided to move the counterweight to a lowered position for backing the tractor uphill, and for raising the counterweight for dozing in a downhill direction. One embodiment provides for selective fore and aft positioning of the counterweight relative to the tractor in accordance with operation conditions.
Patent CA-2073396-A1 (CA)
Title: Pharmaceutical agent for treatment of withdrawal symptons
Inventor: STEPPUHN KARIN G
IPC: A61K45/00
Filed: 1992-07-08
Abstract: ABSTRACT OF THE DISCLOSURE     The use of non-NMDA receptor antagonists or their physio-logically compatible salts for treatment of withdrawal symp-toms after drug abuse as well as the combination of the new pharmaceutical agents with NMDA antagonists are described.