baber/WOPTO huggingface dataset:
Patent CA-2153183-A1 (CA)
Title: Fluid system for controlling fluid losses during hydrocarbon recovery operations
Inventor: JOHNSON MICHAEL H
IPC: E21B43/267
Filed: 1995-07-04
Abstract: A fluid system has been discovered using a distribution of graded calcium carbonate particle sizes, a biopolymer and a polymerized starch. The biopolymer is a non-ionic polysaccharide of the scleroglucan type. It is important that the calcium carbonate particles be distributed across a wide size range to effectively prevent filtration or fluid loss into the formation. Since the filter cake particles do not invade the well bore due to the action of the biopolymer and starch, no high pressure spike occurs during the removal of the filter cake. This high pressure spike indicates damage to the formation and well bore surface, which damage typically reduces overall permeability of the formation. The rheological properties of the fluid allow it to be used in a number of applications where protection of the original permeable formation is desirable. The applications include, but are not limited to, drilling fracturing and controlling fluid losses during completion operations, such as gravel packing or well bore workovers.
Patent CA-2153821-A1 (CA)
Inventor: KATSUDA YOSHIO
IPC: A61L9/03
Filed: 1995-07-13
Abstract: A  battery-actuated  insecticide  transpirator  comprises:  a radiation plate located in contact with an insecticide; and a heating means using a battery; wherein the surface of radiation plate is heated to a temperature of from 90 to 130°C for transpirating the insecticide, and wherein the heating means consists of a battery connected to a positive temperature coefficient thermistor (an organic PTC) made from a mixture of thermoplastic polyolefin resin and carbon; and wherein the insecticide is a cyclopropane carboxylic ester pyrethroid having a vapor pressure of 1.0 x 10-4 mmHg or higher at  20°C.  A  method  for  transpirating  insecticide  using  the transpirator.
Patent CA-2155296-A1 (CA)
Title: Elevator roller guide
Inventor: MAEDA KOICHI
IPC: B66B7/04
Filed: 1995-08-02
Abstract: An elevator roller guide includes a platform 12 having a supporting arm portion 12a and being arranged on a cage, a roller 3 in contact with a guide rail erected in a channel, an arm 6 which supports the roller 3 in a freely rotatable manner and which is arranged on the platform 12 in a freely rockable manner, and a spring 16 arranged between the arm 6 and the supporting arm portion 12a of the platform 12. The guide further includes a stopper rod 13 arranged on the supporting arm portion 12a at a position separated by a certain distance in the horizontal direction from the arm 6 on the side of the rocking direction and separated by a certain distance from the spring 16; and a viscoelastic part 63 arranged between the stopper rod 13 and said arm 6. The viscoelastic part 63 is deformed in the shear direction alone, and its damping effect can be efficiently realized. Also, when the hardness of the viscoelastic part 63 is adjusted, the strength of the spring 16, which has already been adjusted, is not inaccurate; thus, there is no need to make readjustment of the spring 16.
Patent CA-2157034-A1 (CA)
Title: One hole folder
Inventor: ZOLAND MARTIN
IPC: B42D5/00
Filed: 1993-03-02
Abstract: A folder and writing instrument in combination, wherein the writing instrument (12) is hooked to a front cover (14) or back cover (16) of the folder (10) via a through-hole (22) located on one of said covers. Preferably, the through-hole (22) is located on the back cover (16) and the front cover (14) does not completely overlie the back cover thereby exposing the edge opposite to the spine (24) of the folder. A writing instrument attached to the through-hole in this exposed area can be freely accessed and does not interfere with opening or closing of the front cover.
Patent CA-2157698-A1 (CA)
Inventor: LOOVERIE ALOIS
IPC: E04F13/06
Filed: 1995-09-07
Abstract: The invention relates to a wire bead (1) for plaster, stucco and the like comprising a strip of bent diagonal wires (2) and longitudinal wires (3) welded to one another, in which the strip is bent at an angle around a longitudinal wire (4) to form a wire bead (1) having a virtually V-shaped cross-section, in which the longitudinal wire running along the apex of the wire bead (1) is provided with a longitudinal profile (7) having a virtually triangular-shaped cross-section. <IMAGE>
Patent CA-2160825-A1 (CA)
Title: Device for the automatic control of an operating head of a cutter to form pieces of tubes of reduced lengths starting from a tube externally corrugated, continuously received froma moulding machine
Inventor: SAVIOLI LEOPOLDO
IPC: B23D45/20
Filed: 1995-10-18
Abstract: The   invention   relates  to  a  device  for  the automatic control of an operating  head    of  a cutter,  to  form externally corrugated pieces of tubes.  The device includes:          - a detector  of the length of the  tube  with  a bearing  structure equipped with a freely rotating track;       - a support  of the detector  fixed  to  the  head of  the cutter  in such a way as to hold the track in alignment and in contact with the outer surface of the tube;          - a transducer coupled with the track  to  detect the length of the tube  received from the cutter;          -  a  detector    of  the  thickness  of the tube, mounted on the support;          - control means  interfaced with  the  transducer, the  detector  of the thickness  and the operating head  in a such a way as to receive  the  signals, process  them  and to activate and disactivate the operating  head.
Patent CA-2162441-A1 (CA)
Title: High oleic polyol esters, compositions and lubricants, functional fluids and greases containing same
Inventor: LAWATE SAURABH SHRIPAD
IPC: C07C69/58
Filed: 1995-11-08
Abstract: A polyol ester is described which is derived from: (A) an aliphatic or alicyclic polyol; and (B) an aliphatic monocarboxylic mixture derived from a natural vegetable oil, said acid mixture comprising at least about 72% by weight of oleic acid. The invention also relates to compositions comprising the polyol esters and at least one antioxidant, and lubricating oil compositions comprising an oil of lubricating viscosity and the polyol esters of the invention. Lubricating oil compositions comprising polyol esters of the invention, at least one antioxidant, and an oil of lubricating viscosity also are described and are particularly useful.
Patent CA-2163260-A1 (CA)
Title: Spinning cell
Inventor: WHITE PATRICK ARTHUR
IPC: D01D10/00
Filed: 1994-05-20
Abstract: A method of producing lyocell fibres (125) by spinning a solution of cellulose in an organic solvent through an air gap and into a spin bath (115) in which there is provided means (121, 122) to generate a cross-draught of air in the air gap.
Patent CA-2165756-A1 (CA)
Title: Process for the preparation of trialkyl ester derivatives
Inventor: PFAMMATTER ELMAR
IPC: C07C67/343
Filed: 1995-12-20
Abstract: A novel process is described for the preparation of trialkyl ester derivatives of the general formula: (See Formula I) wherein X is chlorine, bromine, iodine, tosyloxy or mesyloxy and R is a C1 -C6 - alkyl group. According to this process, a trialkyl methanetricarboxylate of the general formula: (See Formula II) wherein R has the above meaning, is converted to the end product of formula I  by reaction with a disubstituted ethane of the general formula:   (See Formula III) in which the two substituents X are identical or different and have the meaning given above, in the presence of an alkaline earth metal carbonate or alkali metal carbonate.
Patent CA-2166179-A1 (CA)
Title: Use of a tnf-alpha antagonist in a cosmetic, pharmaceutical or skincare composition and composition thus obtained
Inventor: DE LACHARRIERE OLIVIER
IPC: A61K33/40
Filed: 1995-12-27
Abstract: The invention relates to the use of a histamine antagonist, an interleukin-1 antagonist and/or a TNF alpha antagonist in a cosmetic, pharmaceutical or dermatological composition for treating sensitive skins. It relates especially to the use of a histamine antagonist, an interleukin-1 antagonist and/or a TNF alpha antagonist for preventing and/or combating skin irritations and/or sores and/or erythema and/or dysaesthetic sensations and/or sensations of inflammation and/or pruritus and/or prickling and/or tingling and/or discomfort and/or tightness of the skin and/or mucosae. It also relates to a composition containing a histamine antagonist, an interleukin-1 antagonist and/or a TNF alpha antagonist which limits or eliminates the irritant side-effects of certain products, and in particular of certain cosmetic, dermatological or pharmaceutical active agents.
Patent CA-2166698-A1 (CA)
Inventor: DAWSON GEORGE J
IPC: G01N33/576
Filed: 1994-06-28
Abstract: Test, réactif et trousse de détection d'un anticorps anti-VHE (virus de l'hépatite E) dans un prélèvement. La méthode consiste: (a) à mettre en contact le prélèvement avec au moins un peptide de synthèse se fixant spécifiquement à l'anticorps anti-VHE pendant un temps et dans des conditions permettant la formation de complexes peptides/anticorps; (b) à mettre en contact lesdits complexes peptides/anticorps avec un réactif marqueur qui comporte un composé générateur de signaux lié à un anticorps antihumain, à laisser incuber pendant un temps et dans des conditions permettant la formation de complexes peptides/anticorps/anticorps; et (c) à détecter un signal mesurable indiquant la présence d'anti-VHE dans le prélèvement.
Patent CA-2166721-A1 (CA)
Title: Bicyclic tetrahydro pyrazolopyridines
IPC: C07D471/04
Filed: 1994-06-16
Abstract: Compounds  of  formula (I) wherein R1, R2, R3 and X are as defined.  The compounds of formula   (I)   and the pharmaceutically    acceptable salts thereof are useful in inhibiting   phosphodiesterase (PDE)   type   IV   and the production of tumor necrosis factor (TNF)   and in   the treatment of asthma,  arthritis, bronchitis,  chronic  obstructive airways disease,   psoriasis, allergic rhinitis, dermatitis and other inflammatory diseases, AIDS, septic shock and other diseases involving the production of TNF.
Patent CA-2168687-A1 (CA)
Title: Portable optical scanning system worn by a user for reading indicia of differing light reflectivity
Inventor: BARD SIMON
IPC: G06V30/224
Filed: 1996-02-02
Abstract: An optical scanning system for reading indicia of differing light reflectivity has an optical scan module including a light emitter for emitting light onto the indicia and a light detector for detecting the reflection of light from the indicia. The scan module is adapted to be mounted on at least one finger of a user. A first peripheral module has a receiver for receiving a first signal corresponding to the detected reflection of light from the optical scan module. The first peripheral module is adapted to be mounted on an arm or wrist of the user. A second peripheral module includes a receiver for receiving a second signal corresponding to the first signal from the first peripheral module by radio frequency transmission. According to other aspects of the invention, the light detector is located in a housing separate and apart from the optical scan module.
Patent CA-2169616-A1 (CA)
Inventor: KRAMER RONALF
IPC: G01R25/08
Filed: 1996-02-15
Abstract: A circuit configuration for measuring a phase difference between a reference signal and a clock signal includes a first shift register being clocked by the clock signal and having an input receiving the reference signal.  A digital differentiator is connected downstream of the first shift register and has an output.  A counter has an input receiving the clock signal and an output outputting a multidigit binary word.  A buffer memory is connected to the counter and to the digital differentiator for storing the binary word at the output of the counter in memory upon an appearance of a corresponding output signal of the digital differentiator.          The buffer memory has an output forming most significant bits of an output binary word.  A second shift register is in-versely clocked by the clock signal and has an input receiv-ing the  reference  signal  and  an output.   An  analog differentiator has an input connected to the output of the digital differentiator and an output.  A D flip-flop has a data input connected to the output of the second shift register and a clock input connected to the output of the analog differentiator for supplying an output signal forming a least significant bit of the output binary word.
Patent CA-2170882-A1 (CA)
Title: Vector for gene therapy of the liver
Inventor: STRAUSS MICHAEL
IPC: A61K48/00
Filed: 1994-08-24
Abstract: A tissue-specific, suitably liver specific vector for gene therapy of a diseased host, wherein a therapeutic gene is coupled to a promoter chemically, enzymatically, or over an antibody, packaged in a polypeptide coat, and coupled to a component of a preselected virus of the tissue to be treated, and when the tissue is liver tissue, then the virus is hepatitis B virus.
Patent CA-2171762-A1 (CA)
Title: Expanded coating material
Inventor: VAN DIEREN FRANKWIN
IPC: A23L17/00
Filed: 1994-09-08
Abstract: A novel, smooth coating material having a defined shape and an advantageously low oil uptake on deep-frying is made by: (a) extruding a dough comprising from 10 to 60 % by dry weight protein and from 90 to 40 % by dry weight starch through an approximately shaped die; providing that when the dough comprises from 30 to 60 % protein, the dough is extruded at a temperature of from 60 to 100 .degree.C; and when the dough comprises below 30 % protein, the protein is substantially a fast hydrating protein and the dough is extruded at a temperature of less than 40 .degree.C; (b) cutting the appeanng extrudate into approximately equally thick sections to form a shaped pellet; and (C) expanding the pellet, preferably by frying in oil.
Patent CA-2172848-A1 (CA)
Title: High frequency esthetic wand
Inventor: HATTON CHRISTOPHER W
IPC: A61N1/00
Filed: 1996-03-28
Abstract: The invention is a compact high frequency electrical spark generator. The high frequency electrical spark discharge generates ozone gas which is used as a local antiseptic of extraordinary value for the sterilization of blemishes and other skin damage including acne, boils, open ulcers, rashes, cuts and scratches. The high frequency electrical spark discharge also has the ability to stimulate the muscles beneath the skin causing toning of the muscles. The high frequency electrical spark discharge also has the ability to stimulate the skin to allow for the effective penetration of skin care products. This invention uses a diode steering circuit for capacitor charging and a silicon rectifier triggering circuit coupled with an auto-transformer to generate the necessary high voltage charge to a glass enclosed gas filled bulb. The glass enclosed gas filled bulb is capacitively coupled to the auto-transformer to protect the user from electrical shock in case of damage to the glass. The gas in the glass enclosed gas filled bulb can be any gas which allows high frequency electric current to pass through the bulb.
Patent CA-2176346-A1 (CA)
Inventor: FANTINO GILLES
IPC: A47C5/12
Filed: 1994-11-30
Abstract: L'invention a pour objet un siège dont le dossier est articulé. Siège du type comprenant une assise fixe et un dossier articulé à sa base relativement à l'arrière de l'assise, le dossier pouvant pivoter selon au moins un axe d'articulation entre une position relevée d'utilisation et une position rabattue sur l'assise, un moyen faisant office de butée assure le blocage dudit dossier en position relevée. Ledit dossier a des dimensions (longueur et largeur) qui sont plus importantes que celles de l'assise de manière à ce que la face intérieure dudit dossier recouvre en son sein la totalité de l'assise lorsque ledit dossier est rabattu sur ladite assise; la forme dudit dossier déborde de tous les côtés de l'assise, de sorte que la protection en couverture de l'assise et de la face intérieure est assurée complètement dans la position rabattue du dossier. L'ivention s'applique notamment aux sièges ou fauteuils d'extérieur.
Patent CA-2178580-A1 (CA)
Title: Object-Oriented Network Protocol Configuration System
Inventor: PETTUS CHRISTOPHER E
IPC: G06F9/46
Filed: 1994-04-11
Abstract: Novel object-oriented client-server facility (CSF) and networking service facility (NSF) interfaces implement communication between application programs residing in client and server nodes of a distributed services network.  The CSF interface includes remote procedure call (RPC) objects for invoking and responding to service requests at the nodes, and application programming interface (API) objects for transporting those requests between the nodes. However, the API objects only provide communication transports within a node. Accordingly, the API and RPC objects interact with dynamically-configurable protocol stacks within the NSF interfaces to complete the transport mechanism needed by an application program on the client node when accessing services on a remote server node.
Patent CA-2180612-A1 (CA)
Title: Railroad signal with remote light source
Inventor: BOGET PAUL J
IPC: B61L29/24
Filed: 1996-07-05
Abstract: An apparatus for providing a light signal to a signal unit at an overhead location along a railway signal structure, particularly a cantilever signal structure having a vertical mast and an arm assembly extending therefrom. Signal units may be located along the mast and/or the arm assembly. A light source is provided at or near ground level so as to be readily accessible by a maintained and is connected by fiber optic cable to the signal units. Thus, light produced by the light source travels through the optical fiber to the signal units.
Patent CA-2181186-A1 (CA)
Inventor: FINKELSTEIN HARVEY
IPC: E04H17/14
Filed: 1996-07-12
Abstract: A slat apparatus for use with a chain link fence for providing privacy, wind protection and/or decoration includes a plurality of slat members for positioning in slat receiving channels formed by linking wires of the fence. Each slat member includes a substantially rigid elongated hollow body member having curved side members, at least a pair of curved longitudinal ribs therein and a pair of flexible and resilient wing portions positioned on opposite sides thereof. The ribs in the rigid elongated body member prevents crimping of the fence slat when installed in a chain link fence.
Patent CA-2181631-A1 (CA)
Inventor: BAIER BRUCE
IPC: E06B1/32
Filed: 1996-07-19
Abstract: A window unit (20)  including a jamb extension assembly  (28)  is  provided  for  use  with  fenestration products.   The jamb extension assembly  (28)  includes a frame member (30) having structure to permit installation of the window unit (20) in a building wall rough opening. The frame member (30) presents inner, outer, rearward and forward portions  (62,  64,  66,  68),  and includes a jamb extender  receiving  slot  (70)  extending  and  opening rearwardly from the rearward portion  (66)  of the frame member (30).  An elongated jamb extender (32) is provided and includes a transverse, extender flange (88) extending forwardly from an extender corner, and a trim flange (92) extending outwardly from the corner.  The extender flange (88) is configured to slide in the slot (70).  The extender flange  (88)  includes structure defining a plurality of longitudinally disposed lines of weakness being in the form of scores (94) disposed on an outer flange surface (96) to permit the length adjustment of the extender flange (88). The  slot  (70)  is configured to conceal  any gap  (102) created between the forward edge  (112)  of the extender flange (88) and the rearward frame portion (66) when the extender flange (88) is disposed in the slot (70).
Patent CA-2187118-A1 (CA)
Title: Roof flashing strip and method of production
Inventor: HOFFMAN KENNETH S
IPC: E04D13/147
Filed: 1996-10-04
Abstract: A flashing strip for use in providing waterproofing for roofing, more particularly for use at the intersection of a vertical wall and an angled roof top. The flashing strip of the present invention includes a plurality of flashing cards pre-assembled and bent into an "L-shaped" configuration. Each of the plurality of flashing cards barred to an adjacent a card to form the flashing strip of the present invention.
Patent CA-2188102-A1 (CA)
Inventor: BOYER MARK L
IPC: F16L55/18
Filed: 1996-10-17
Abstract: A rehabilitation system has been developed for cleaning, testing and slip lining pipe particularly sewer lines while in service.  The system includes the use of equipment adapted for use on mobile vehicles to increase efficiency and mobility of the system.  The cleaning system utilizes a specialized cleaning bucket that can be pulled from excavations and existing manholes.  The testing and lining systems also utilize specialized test mandrels and pulling mandrels for the pipe liner that can be used with equipment operating, in part, from existing manholes.
Patent CA-2188267-A1 (CA)
Title: Use of tetrahydropteridine derivatives as no-synthase inhibitors
Inventor: PFLEIDERER WOLFGANG
IPC: A61P9/00
Filed: 1995-05-11
Abstract: The present invention relates to the use of pteridine derivatives of the formula I      in which X is 0 or NH and R4, for example, is hydrogen, phenyl or the radical R4a-CH2- and R4a, for example, is hydrogen, (C1-C4)-alkylmercapto, the radical -NR11R12 or the radical -OR13, and in which R1, R2, R3, R5, R6, R7, R11, R12 and R13 have the meanings given in claim 1, which are nitric oxide synthase inhibitors, for the treatment of diseases which are caused by an increased nitric oxide level.
Patent CA-2190198-A1 (CA)
Inventor: MACHIDA KOICHI
IPC: G01N33/58
Filed: 1996-11-13
Abstract: By using an assay device comprising a sample-receiving port, a pump-connection port, a sample-treating zone which is provided with a labeled substance with a label, a sample-treating and optical-measuring zone which has a porous material having immobilized thereto one of a specifically binding pair, and a pathway interconnecting these zones and ports, wherein the sample-treating zone and the sample-treating and optical-measuring zone are positioned between the sample-receiving port and the pump-connection port; or by using an assay device comprising a sample-receiving port, a pump-connection port, a sample-treating and optical-measuring zone which has a porous material having immobilized thereto a labeled substance with a label and one of a specifically binding pair, and a pathway interconnecting these zone and pores, wherein the sample-treating and optical-measuring zone is positioned between the sample-receiving port and the pump-connection port, biological components can be quantitatively determined by immunoassay in a simple manner.
Patent CA-2193509-A1 (CA)
Title: Device and method for controlling a printing machine, particularly a franking machine drum
Inventor: BAUMANN HERVE
IPC: B41K3/50
Filed: 1996-02-05
Abstract: In a printing machine with a rotary drum (1) for franking envelopes (4), each print operation is performed at a constant rotational speed in a given direction, whereafter the direction of rotation of the drum (1) is reversed so that for the next print operation, the rotational speed of the drum (1) may be increased in said direction over a greater angle to achieve said constant speed.
Patent CA-2193730-A1 (CA)
Title: Method of stepwise voltage control for supplying an induction motor
Inventor: CAEN CLAUDE
IPC: H02P1/26
Filed: 1995-06-20
Abstract: A time sequence of electromotive force amplitudes (e ref) corresponding to a predetermined law for torque variation during transient operating conditions is stored. For this purpose, voltages (W1, W2, W3) applied to the motor (M) and the current flow (I) are determined to derive, at least approximately, the electromotive force (3) generated by the motor. The static switch conduction intervals are acted on to adapt the electromotive force (3) to the stored amplitude (e ref) during the transient operating conditions.