baber/WOPTO huggingface dataset:
Patent CA-2101403-A1 (CA)
Title: Method and apparatus for forming bags
Inventor: GLY-WOODS JOHN
IPC: B31B50/64
Filed: 1993-07-27
Abstract: ABSTRACT OF THE DISCLOSURE            The invention is a welding tool for welding and cutting a tear seal edge into multiple plies of plastic film.  The welding tool includes a base and a knife edge on the base.  A cross section of the knife edge has three surfaces for engaging the multiple plies of plastic film.  The three surfaces at the cross section are a planar cutting surface, a planar welding surface, and a planar separating surface.  The planar cutting surface presses into the multiple ply plastic film in a coplanar engagement with the multiple ply plastic film.  The planar welding surface is located on a first side of the planar cutting surface.  The planar welding surface fuses the multiple plies of plastic film to substantially eliminate any flash of a weld formed by the fusion of the multiple plies of plastic film.  The planar separating surface is on a second side of the planar cutting surface opposite to the planar welding surface.  The planar separating surface pushes the multiple ply plastic film away from the weld of the multiple ply plastic film at the tear seal edge. A method for forming plastic bags and other articles is also disclosed.
Patent CA-2103756-A1 (CA)
Title: Process for preparing 6-chloro-(6h)-dibenz[c,e][1,2]-oxaphosphorin
Inventor: KLEINER HANS-JERG
IPC: C07F9/6571
Filed: 1993-08-10
Abstract: Abstract A   process    for   preparing   6-chloro-(6H)-dibenz-[c,e][1,2]oxaphosphorin of the formula (I),                   (I) in which R1 and R2 are identical or different and are halogen, alkyl or alkoxy, each having from 1 to 6 carbon atoms, and a and b are integers from 0 to 3, preferably from 0 to 2, by reaction of o-phenylphenol of the formula (II),                       (II) in which R1, R2, a and b are as defined above, with phosphorus trichloride in the presence of Lewis acids as catalysts with elimination of hydrogen chloride, wherein the phosphorus trichloride is metered into the mixture of compound  (II) and  Lewis  acid  at  temperatures  of 170-220°C.
Patent CA-2105252-A1 (CA)
Title: Detachable process unit for an electrophotographic device
Inventor: IGUCHI MICHIHISA
IPC: G03G21/16
Filed: 1993-08-31
Abstract: In an electrophotographic device, a main body is divided into a lower body and a swingable upper body. A process unit formed of at least a toner holder, a charger, and a developer is detachably mounted in the lower body. The position of the process unit (particularly, the photosensitive member) relative to the lower body (particularly, a member driving gear) is controlled by placing a shaft of the member through a groove in a side wall of the lower body at one end of the member, and by bringing a lower end of the side wall of the process unit supporting the member into contact with an upper end of a support member supporting the member driving gear. An exposure unit mounted in the upper body is positioned to the photosensitive member with a predetermined distance therebetween by bringing a contact portion of the exposure head into contact with the side wall of the lower body supporting the member.
Patent CA-2105945-A1 (CA)
Title: Drug delivery arrangement
Inventor: DENYER JONATHAN S H
IPC: A61M11/02
Filed: 1993-09-10
Abstract: An arrangement for delivering a drug aerosol comprises a sensor (3) which detects turbulent air flow during inhalation and causes the nebulizer (8,9,10.11,12,13) to generate the aerosol only during the inhalation phase of the breathing cycle. Airflow is diverted from the sensor during exhalation.
Patent CA-2106248-A1 (CA)
Title: Preparation of beta-methyl carbapenem intermediates
Inventor: CHOI WOO-BAEG
IPC: A61K31/00
Filed: 1993-09-15
Abstract: TITLE OF THE INVENTION          PREPARATION OF BETA-METHYL CARBAPENEM INTERMEDIATES            ABSTRACT OF THE INVENTION         The present invention is directed to a process of making a Beta-methyl carbapenem intermediate of formula VI from a compound of formula I                      I                              VI   wherein R and P' are protecting groups R1 is a methylmalonic acid ester and Nu is a nucleophilic group. Process intermediates are also disclosed.
Patent CA-2108535-A1 (CA)
Inventor: KHANNA SATYA P
IPC: H04W88/02
Filed: 1993-10-15
Abstract: A compact telephone, which may be fastened to a user's wrist by means of a strap 310, 320, includes a case 100 having an upper portion 110 that is hinged along one edge to a lower portion 210. A receiver transducer 140 is embedded within the upper portion on the side opposite the hinge, and a microphone transducer 240 is embedded within the lower portion on the side opposite the hinge so that the distance between them is maximized when the case is opened. By providing such separation, inter-transducer distance is increased, and this results in improved signal-to-noise performance. Such performance is further improved by using a directional microphone which is more responsive to sounds coming from the direction of the user's mouth than from other directions.
Patent CA-2108824-A1 (CA)
Title: Microprocesseur custom integrated circuit
Inventor: DARNAULT PATRICK
IPC: G06F11/22
Filed: 1993-10-20
Abstract: Application-specific integrated circuit (ASIC), comprising a microprocessor (1), at least one functional input (16) of which is connected to a functional output (15) of an electronic circuit of the ASIC, and at least one functional output (11) of which is connected to a functional input of an electronic circuit of the said ASIC, the ASIC including means (9, 30) for porting at least one functional input (16) of the microprocessor to the output (9) of the ASIC and means (21, 24) for porting at least one functional output (11) of the microprocessor to the input/output (8) of the ASIC, in which the ASIC furthermore includes means (24, 41, 42, 45, 50) for disabling the electronic circuits (2, 3, 4, 5) and the microprocessor (1), and which are arranged so as to disable the said functional output (11) of the microprocessor, and at least one electronic gate (21), wired in series between the said output (11) of the microprocessor and the input/output (8) of the ASIC to which it is ported and providing for the flow of signals in one direction, and arranged so that its direction of flow reverses under the control of the said disabling means (24). - Application to computers. <IMAGE>
Patent CA-2109098-A1 (CA)
Title: Activity-dependent neurotrophic factor
Inventor: BRENNEMAN DOUGLAS E
IPC: C07K16/00
Filed: 1992-04-22
Abstract: The present invention relates to a purified non-neuronal activity-dependent neurotrophic factor (ADNF) protein that increases the survival of spinal cord neuron cells, cerebral cortical cells and hippocampal neuron cells which has a molecular weight of 16,000 to 18,000 Daltons as determined by sodium dodecyl sulfate polyacrylamide gel electrophoresis, and a basic pI of about 8.1. The protein of the present invention can be used in the treatment of neurological deficiencies and for the prevention of AIDS related neuronal cell death.
Patent CA-2110250-A1 (CA)
Title: Depositing different materials on a substrate
Inventor: HILL ROGER
IPC: C23C14/46
Filed: 1993-11-29
Abstract: An apparatus and method for depositing different materials on a substrate 9 comprising means, 5,6,7 for moving the substrate 9 between regions, means 3,4 for depositing different materials on the substrate 9 in the respective regions, means 12 for introducing a reactive substance into each region so as to expose the material as it is deposited in that region, to the reactive substance; and means 13, 14, 15 for controlling the degree of such exposure in one region relative to the other to obtain desired stoichiometry in the deposited material (Figure 1).
Patent CA-2112363-A1 (CA)
Title: Topical application of steroid hormones and vaginocervical stimulation to induce maternal behaviour of animals
Inventor: KENDRICK KEITH M
IPC: A61K31/565
Filed: 1992-06-22
Abstract: The invention provides a process of artificially inducing a non-pregnant, non-human female animal to act as a foster mother using a non-invasive method which comprises administering a topical application of at least one steroid hormone to the animal for a period of time sufficient that uptake of hormone by the animal acts both (i) to stimulate lactation and (ii) to prime the animal for vaginal and cervical stimulation so that such stimulation causes induction of maternal behaviour. The hormone may be selected from either progestagen or oestrogen or a mixture of the two, and may be applied to the animal via an intra-vaginal sponge by a method comprising the steps of: inserting a first hormone impregnated sponge into the vagina of a non-pregnant animal for about two to three weeks; removing the first sponge and replacing it with a second hormone impregnated sponge for a further period of time of about two to four weeks. Maternal behaviour is induced by vaginal and cervical stimulation.
Patent CA-2112511-A1 (CA)
Inventor: MOUROT CHRISTOPHE
IPC: H04J3/00
Filed: 1993-12-29
Abstract: The invention relates to a method of high rate information transmission by multiple block allocation within a transmission frame, this frame comprising information symbols (D1A, D1B; D2A, D2B) and system symbols (Sd1, S1, Sf1, 2, Sd2, S2, Sf2). A user is allocated several adjacent blocks (B1, B2) and at least one system symbol (S1, Sf1, 2, Sd2, S2) lying between the information symbols of the first (D1A) and of the last (D2B) of the adjacent blocks (B1, B2) is replaced by an information symbol in order to form a super-block (SB). The associated reception method comprises a step of recognising reception of a super-block and a step of processing this super-block in order to extract the information symbols therefrom. Use in mobile radiotelephony transmission and receiving equipment. <IMAGE>
Patent CA-2114870-A1 (CA)
Title: Tensile member for communication cables
Inventor: SEYNHAEVE GEERT
IPC: D07B1/16
Filed: 1994-02-03
Abstract: ABSTRACT            A communication cable (10) comprises optical fibres (24) and/or metal conductors (20) for the transmission of information, and a tensile member, the tensile member comprising a steel strand and synthetic material. The steel strand has a modulus of elas-ticity of at least 140 000 N/mm2. The steel strand comprises a core wire (12) and one layer of layer wires (14) surrounding the core wire. A contact is provided between the layer wires and the core wire. The interstices between the layer wires and the core wire are filled with a first synthetic material (13) having  a melting-point  above  150  °C.  The  steel  strand  is covered by a layer of a second synthetic material  (16). The filling with the first synthetic material and the covering by a layer of a second synthetic material is such that watertight-ness is obtained in the longitudinal direction of the tensile member.
Patent CA-2116587-A1 (CA)
Title: Sprinkler system control valve for cold area
Inventor: KARROUM ALEXANDRE
IPC: F16K3/24
Filed: 1994-02-28
Abstract: The  device is a differential  type valve used  for dry pipe fire protection as  a Sprinkler or  Deluge System Control  Valve.          Conduits and trim susceptible  to freezing are  minimised if not eliminated;  instead internal  passageways through the  valve are used to connect the pressure from one zone to another.  Different versions  are presented, the  advantages of each  mentioned.  The proposed  device in  its different  forms, consists  mainly of  a housing and a plug, seal rings are used to prevent  the water and or  air pressure from being transmitted from one area to another.          A damper is added to absorb pulses in the water supply line.          Consisting of few parts, the device is simple, easy to arm and to maintain,  cheaper  to  manufacture   in  addition  to  its  main advantage  that of  having a  minimum wetted surfaces  exposed to freezing.
Patent CA-2118453-A1 (CA)
Inventor: HOHLER MELISSA M
IPC: A23L7/109
Filed: 1994-10-19
Abstract: A pasta cooker which includes an open water tank shaped to receive pasta for cooking, a heater for boiling water in the tank, a trough positioned to receive and collect starch foam from an upper surface of the water in tank, and a drain for draining water from the trough and tank, the drain including a screen box for filtering pasta particles and starch foam from drained water to prevent clogging of drains downstream of the screen box.   The trough is coextensive with a front upper edge of the water tank, and the cooker includes a water fill valve which is actuatable to fill the tank such that a small amount of water continuously washes over from the tank into the trough during the cooking of pasta, thereby conveying starch foam floating on the upper surface of the water of the tank to the trough.   The screen box includes a removable drawer having perforated sides and positioned to receive the water and starch foam drained the from the trough and tank. The drawer is positioned within a housing shaped to collect water flowing through the drawer, and to receive water which overflows from the drawer in the event that the drawer becomes completely clogged.   The screen box includes a downwardly and rearwardly sloping  floor  to direct  drained water  toward a  rear  opening connected  to  a  conventional  drain  pipe.    The  pasta  cooker preferably includes a second tank, also draining into a screen box, for washing cooked pasta.  The second tank also includes a flexible spray nozzle for cleaning both tanks and washing cooked pasta.
Patent CA-2118570-A1 (CA)
Title: Railway vehicle suspensions
Inventor: SCHEFFEL HERBERT
IPC: B61F5/44
Filed: 1994-03-08
Abstract: ABSTRACT          A railway vehicle has a frame which is suspended on wheelsets (10) eachhaving a live axle (11). The ends of the axles (11) are mounted in axleboxes (12). Couplings (17 to 21) are provided which are attached to the vehicle frame (13) and which couple an axlebox (12) of one wheelset to an axlebox (12) of another wheelset. The couplings are such as to constrain relative movements between the wheelsets (10) in a lateral plane. In addition, each coupling includes a crank lever (19) which operates to uncouple lateral movements of the frame (13) from the movements of the wheelsets (10), thereby providing shear stiffness to the vehicle and reducing vehicle hunting at speed.
Patent CA-2118987-A1 (CA)
Inventor: PAL DHIRAJ
IPC: A62D3/00
Filed: 1994-03-14
Abstract: The present invention discloses a method of treating lead bearing process materials and lead toxic hazardous wastes, The invention relates to treatment methods employed to chemically convert leachable lead in lead bearing solid and liquid waste materials to a non-leachable form by mixing the material with lime, gypsum and/or phosphoric acid. The solid and liquid waste materials include contaminated sludges, slurries, soils, wastewaters, spent carbon, sand, wire chips, plastic fluff, cracked battery casings, bird and buck shots and tetraethyl lead contaminated organic peat and muck. The present invention discloses a process comprising a single step mixing of one or more treatment additives, and a process comprising a two step mixing wherein the sequence of performing the steps may be reversible.      The present invention provides a new way of treating a universe of lead contaminated materials at any pH.
Patent CA-2120234-A1 (CA)
Title: 2-aminopropan-1,3-diol chemotherapeutic agents
Inventor: JIANG JACK B
IPC: A61K33/243
Filed: 1992-10-19
Abstract: The present invention provides a pharmaceutical system adapted to inhibit the growth of a mammalian cancer tumor or cell characterized by a chemotherapeutic agent selected from adriamycin and cisplatin in conjunction with an effective amount of a potentiating agent comprising a compound having formula (I), wherein R is C5-C20 alkyl, alkenyl or alkynyl. The present invention further provides a method of inhibiting the in vitro growth of a mammalian cancer tumor or cell comprising administering to the tumor or cell an amount of a chemotherapy agent selected from adriamycin and cisplatin effective to inhibit growth of the tumor or cell;  and administering to the tumor or cell an amount of a potentiating agent comprising a compound having formula (II) wherein R is C5-C20 alkyl, alkenyl or alkynyl, in an amount effective to induce enhanced growth inhibition produced by the chemotherapy agent.
Patent CA-2120919-A1 (CA)
Title: New ligands for asymmetric dihydroxylation: multiple cinchona alkaloid units attached to a central heterocyclic core
Inventor: HARTUNG JENS
IPC: C07D453/02
Filed: 1992-10-06
Abstract: Osmium-catalyzed methods of addition to an olefin are discussed. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, an aqueous solution, a base, a ferricyanide salt, and an osmium-containing compound are combined. The chiral ligand is an alkaloid or alkaloid derivative linked to an organic substituent of at least 300 daltons molecular weight through a planar aromatic spacer group. The organic substituent can be another alkaloid or alkaloid derivative. With the described chiral ligands, asymmetric dihydroxylation of olefins with high yields and enantiomeric excesses are achieved.
Patent CA-2121361-A1 (CA)
Inventor: SANGHA JANGBIR S
IPC: B01L3/00
Filed: 1992-11-18
Abstract: A method is provided for rapidly determining during a saliva specimen collection procedure the  presence of an amount of saliva, and for verifying that the sample obtained is in fact saliva.   Color indication by dye markers and/or enzymatic activation of color indicators provides an indication that at least a predetermined amount of saliva has been applied to an absorbent and the enzymatic reaction indicates that saliva is contained in the sample collected.  Apparatus for collecting a human saliva sample is provided having a dye indicator for signalling the collection of a predetermined sample quantity.   alternatively,  the apparatus contains a chromogen  capable  of  undergoing  chemical  conversion  upon contact with saliva to produce a color change thereby verifying the presence of saliva as opposed to another fluid.
Patent CA-2121380-A1 (CA)
Title: Rotation sensor using linear accelerometers
Inventor: OLNEY ROSS D
IPC: G01C19/58
Filed: 1994-04-15
Abstract: ROTATION SENSOR USING LINEAR ACCELEROMETERS            ABSTRACT OF THE DISCLOSURE    Two linear accelerometers (14,16) are spaced from each other by a fixed distance (.DELTA.)  along a linear axis  (18) which is integrally rotatable with the body of a motor vehicle  (12)  or other object whose rotation  is to be sensed.   The accelerometers  (14,16)  have sensing  axes (20,22) which are collinear with the linear axis (18).  A computer (24) computes the rotation of the vehicle (12) in terms of angular velocity (.omega.) as a function of the differ-ence between linear accelerations  (a1,a2)  sensed by the sensors  (14,16)  and  the  distance  (.DELTA.)  between  them. Alternatively, the sensing axes (20,22) can be perpendicu-lar to the linear axis (18), and the computer (24) computes the rotation of the vehicle  (12)  in terms of angular acceleration  (.alpha.)  as another function of the difference between the linear accelerations (a1,a2) and the distance (.DELTA.). The sensed rotation is independent of the location of the axis (26) about which the vehicle (12) rotates, the radius  of rotation,  and translational  movement of the vehicle (12).
Patent CA-2125475-A1 (CA)
Title: Biodegradable starch-based articles
Inventor: BASTIOLI CATIA
IPC: C08J7/048
Filed: 1992-12-07
Abstract: Thin-walled articles, particularly sheets of film including at least one first layer of polymeric material including starch and at least one second layer of hydrophobic material, are characterised in that the second layer includes a natural or synthetic wax or a mixture of waxes.
Patent CA-2126590-A1 (CA)
Inventor: PALMATIER RICHARD
IPC: G03G15/00
Filed: 1994-06-23
Abstract: A retard feeder system having a noise suppression device which feeds sheets from a stack of sheets to a sheet transport path. The device includes a sheet feeding friction device for engaging and moving sheets in a direction toward the path, a retard pad positioned adjacent said sheet feeding device to form a retard nip to permit selective feeding of individual sheets through the retard nip to the path, and a raised portion in the path for corrugating the sheet as portions of the sheet are engaged in the retard nip. The corrugation of the sheet helps to minimize the sheet flutter and vibration while it is within the retard nip by increasing the beam strength of the sheet and thereby decreases the audible noise created by the vibrating sheet.
Patent CA-2127667-A1 (CA)
Title: Method for controlling dreissenidae mussels
Inventor: VEGEGA ALEXANDER M
IPC: A01N59/00
Filed: 1994-07-08
Abstract: Method of controlling fresh water mussels of the Dreissenidae family (zebra and quagga mussels) by direct contact with peracetic acid or indirectly by application to an environment where control is desired. The biofouling of environments, such as fresh water intakes, conduits and storage systems of power and water treatment systems, and of processing streams of industrial plants, is thereby reduced or eliminated.
Patent CA-2130914-A1 (CA)
Title: Control system for an internal combustion engine
Inventor: WUNNING JOHN J
IPC: F01L9/20
Filed: 1992-05-18
Abstract: A control system (140) for an internal combustion engine (100) having a plurality of cylinders (C1-Cn) and a rotatable crankshaft (110). Each cylinder (C1-Cn) has an electronically actuatable intake valve, exhaust valve (120, 125) and fuel injector (130). The control system includes a sensor (155) which monitors the rotation of the crankshaft (110) and responsively produces a crankshaft pulsetrain. A computer (216) produces operator parameter signals. The operator parameter signals including one of a plurality of operating modes of the engine (100). A first microprocessor (226) receives the crankshaft pulsetrain, responsively determines the speed of the engine (100) and produces a signal representative of the determined engine speed. A second microprocessor (222) receives the operator parameter signals and the engine speed signal, responsively determines valve and injection events for each cylinder (C1-Cn) to responsively achieve the one engine operating mode. The second microprocessor (222) produces signals representative of the determined valve and injection events.
Patent CA-2132497-A1 (CA)
Title: Radio telecommunication apparatus
Inventor: OBAYASHI ARATA
IPC: H04W12/06
Filed: 1994-09-20
Abstract: Abstract Radio communication apparatus stores at least one authentication number and at least one system identification number.  Each of the authentication number corresponds to one of the stored system identification number.  When the apparatus receives a system identification number transmitted from a base station, the apparatus compares the received system identification number with each of the the stored system identification number .  When the received system identification number corresponds to one the stored system identification number, one of the stored authentication number corresponding to one of the stored received system identification number is adopted.
Patent CA-2136665-A1 (CA)
Inventor: SPIEGLER ROLAND
IPC: B01D19/04
Filed: 1994-11-25
Abstract: A  method  of  defoaming  diesel  fuel  by  adding  an organofunctionally modified polysiloxane of the general Formula I       wherein R1   are alkyl groups with 1 to 4 carbon atoms or aryl groups with the proviso that at least 80% of the R1 groups are methyl groups, R2   are the same or different in the molecule 30 to 90% of R2 having the same meaning as R1, and 70 to 10% of R2 consisting of a mixture of R2A and R2B groups which differ in polarity, is described.  The inventive polysiloxane is added in an amount of 0.5 to 50 ppm, based on the diesel fuel.