baber/WOPTO huggingface dataset:
Patent CA-2022669-C (CA)
Title: Process for the preparation of polymers
Inventor: GAUTIER PIETER A
IPC: C08G67/02
Filed: 1990-08-03
Granted: 2002-09-03
Abstract: Process far the preparation of polymers, wherein linear polymers of carbon monoxide with one or more olefinically unsaturated compounds, in which polymers the units originating in carbon monoxide on the one hand and the units originating in the olefinically unsaturated compounds on the other hand occur substantially in alternating order, are prepared in a continuous manner by contacting the monomers with a suitable catalyst at an elevated temperature and pressure in two or more reactors connected in series.
Patent CA-2025067-C (CA)
Title: Dc motor controller with high reliability
Inventor: KONO MITSUNOBU
IPC: H02P3/12
Filed: 1990-09-11
Granted: 1995-10-03
Abstract: A power source circuit supplies positive and negative voltages to a DC motor.  A first switching element is provided in a path for supplying a positive voltage from the power source circuit.  A second switch-ing element is provided in a path for supplying a nega-tive voltage from the power source circuit.  A driving circuit outputs an ON/OFF control signal for controlling the first and second switching elements to set them into opposite switching states to the first and second switching elements in response to a forward/reverse rotation instruction for the DC motor, and outputs an OFF control signal for setting the first and second switching elements into the OFF state to the first and second switching elements in response to a rotation interruption instruction.  A short-circuiting circuit short-circuits both ends of the DC motor to brake the DC motor and interrupt the rotation thereof in response to the rotation interruption instruction.
Patent CA-2033356-C (CA)
Title: Alitame stability in chewing gum products using rolling compounds
Inventor: YATKA ROBERT J
IPC: A23L27/30
Filed: 1990-12-28
Granted: 1997-04-22
Abstract: Chewing gum products incorporating Alitame in the manner to separate the Alitame from gum ingredients which cause the Alitame to degrade are disclosed.  The product comprises a chewing gum composition with a rolling compound applied thereto.  The rolling compound comprises about 0.01% to about 20% Alitame.  Preferably the rolling compound is substantially free of Alitame degradation ingredients, such as alditols.
Patent CA-2036173-C (CA)
Title: Process for the chlorine-free bleaching and delignification of cellulose
Inventor: STURM WERNER
IPC: D21C9/10
Filed: 1991-02-12
Granted: 1996-01-23
Abstract: The present invention provides a process for the chlorine-free bleaching and delignification of cellulose pre-bleached with oxygen and peroxide or oxygen and or ozone, wherein the pre-bleached cellulose is treated twice with peroxide activated by cyanamide and/or a cyanamide salt.
Patent CA-2037861-C (CA)
Title: Atm exchange
Inventor: SCHRODI KARL
IPC: H04L12/70
Filed: 1991-03-08
Granted: 1996-05-28
Abstract: ATM Exchange Prior Art/Technical Problem: During the establishment of a call through a switching network 20, the path is selected on the basis of the instantaneous loading of the switching network and maintained during the call. The problem of eliminating local blocking by rearranging existing connections has not been satisfactorily solved because of errors occurring during the rearranging process.            Basic Idea: Provide in an ATM exchange operating with virtual connections the same devices which assure the correct order of the cells in the "connectionless" mode.            Solution: Each output of the switching network is fol-lowed by an output unit 30 which ensures that the cells are output in the correct order.            Advantage(s): Virtual connections can be adapted to the instantaneous loading of the switching network error-free at any time. The assurance of the correct order can be implemented so as to largely compensate for de-lay jitter.
Patent CA-2042831-C (CA)
Title: A recombinant promoter for gene expression in monocotyledonous plants
Inventor: LAST DAVID I
IPC: C12N1/21
Filed: 1991-05-17
Granted: 2000-07-25
Abstract: A recombinant promoter molecule for enhancing expression of a plant-expressible structural gene in a monocot plant cell is provided comprising a plurality of enhancer elements selected from the group consisting of ARE and OCS elements, a truncated plant-expressible promoter, and an intron.
Patent CA-2048194-C (CA)
Title: Apparatus for reading and/or inputting information
Inventor: MORIKAWA YUKO
IPC: G11B9/14
Filed: 1991-07-31
Granted: 1997-08-26
Abstract: An apparatus for reading information from an information medium and/or inputting information to the information medium through a probe electrode comprises a voltage application circuit for applying voltage between the probe electrode and the information medium, information reading from the information medium and/or information inputting to the information medium being performed by the voltage application by the voltage application circuit, and an electric removing device to perform the electric removing process for the information medium to which voltage is applied by the voltage application while maintaining the information in the information medium; making it possible to perform a highly precise information reading and/or inputting at all times without producing any adverse effects on the information medium due to the charge deposition resulting from the voltage application.
Patent CA-2048505-C (CA)
Title: Carton pour closure
Inventor: THYKESON EVERETT
IPC: B65D5/70
Filed: 1991-08-06
Granted: 1996-04-02
Abstract: The  invention comprises a closure  for carton board containers which is an extension of the top flap.  A dispensing opening is partially die cut through an end wall of the container, thereby forming an opening with a remov-able plug.  The plug is glued to the closure flap so that it comes away with and is a functional part of the closure flap.   A locking tab depends from a lower edge of the closure flap and is spot glued to the end wall when the container is initially filled.   The closure is initially opened by pulling on the tab and breaking the spot seal. A pair of score lines extend across the closure flap on the one hand and adjacent to the tab on the other to facilitate closing  and  locking.    In  an alternate  embodiment,  an additional  top mirror end flap is provided to enhance carton sealing and product containment.
Patent CA-2051188-C (CA)
Title: Fuse box for blade-type fuse
Inventor: ARAKI MAMORU
IPC: H01H85/045
Filed: 1991-09-11
Granted: 1996-05-28
Abstract: A fuse box has a fuse cavity for receiving the body of a blade type fuse having blade-like male terminals projecting from the body into an insertion direction of the blade type fuse.  The body of blade type fuse has opposed ends extending into the insertion direction and a side rib provided on each of the opposed ends and extending into the insertion direction.  The fuse cavity has opposed walls for receiving therebetween the opposed ends of the blade type fuse when the blade type fuse is inserted.  The fuse cavity also has two pairs of second ribs on the opposed walls, each pair being positioned to define a receiving groove there-between for receiving the side rib of the blade type fuse.
Patent CA-2053145-C (CA)
Title: Housing structure for accommodating electronics apparatus
Inventor: SUZUKI TOSHIAKI
IPC: H05K9/00
Filed: 1991-10-10
Granted: 1997-08-12
Abstract: A box-like  housing  for  an  electronics  apparatus  is provided having superior effects for preventing problems caused by electrostatic discharge (ESD).  The wall of the housing is formed by a sandwiched plate consisting of the innermost layer of high electro-conductive material such as a steel plate, the middle layer of electro-insulating material such as plastic, and the outermost layer of low electro-conductive material having much higher resistance compared with the innermost layer such as a carbon-containing paint coating.  The innermost layer and the outermost layer are frame-grounded through a common earth line.
Patent CA-2056824-C (CA)
Title: Ball game practice apparatus
Inventor: KITA SHIGERU
IPC: A63B69/00
Filed: 1991-12-02
Granted: 1995-05-09
Abstract: A ball game practice apparatus comprising a ball, and a fly limiting member including elastic expanding-means for limiting a flying distance of the ball and a frame for fixedly supporting the elastic expanding means.    The elastic expanding means includes a frame fixing portion fixed to the frame, and a ball fixing portion connected at one end to the frame fixing portion and fixed at the other end to the ball.   At least the ball fixing portion consists of different binding combinations of more than one coated string, each having a rubber string as a core.
Patent CA-2060286-C (CA)
Title: Fused disconnect
Inventor: MARACH DAVID R
IPC: H01H85/34
Filed: 1992-01-29
Granted: 2000-12-26
Abstract: A fused disconnect device constructed according to the present invention comprises a housing, a line side terminal, a load side terminal, a protection fuse holder assembly removably installed in a cavity of said housing, and a separate alarm fuse removably installed in said housing. The alarm fuse may remain installed in the housing regardless of the presence of the protection fuse holder assembly, so that an alarm will be generated whenever the inventive device has interrupted power to the load. The fuse holder assembly comprises a cavity for holding at least one spare protection fuse and one spare alarm fuse. A cover retains the spare fuses in the cavity until they are required. The cover is marked to indicate the fuse ratings whils permitting an observer to view the contents of the cavity.     In a first embodiment of the invention, the disconnect device is adapted for front-access mounting in a power distribution panel.     The line side terminal is adapted for direct contact with a power supply bus bar. A fastener which is accessible from the front of the device secures the line side terminal to the bus bar. A fastener on the load side terminal extends toward the front of the device so that a load conductor may be installed on that terminal using only front access. Mounting fasteners, including fasteners extending from a rear portion of the device, are each accessible from the front. In a second embodiment of the invention, the disconnect device is adapted for rear-access mounting in a power distribution panel. The line side terminal is adapted for direct contact with a power supply bus bar. A fastener extends from the rear of the bus bar through the bar and into a receptacle in the device in order to secure the line side terminal to the bus bar. A fastener on the load side terminal extends toward the rear of the device so that a load conductor may be installed on that terminal using only rear access. A third embodiment is adapted for use in higher-current applications.
Patent CA-2066016-C (CA)
Title: Method of rerouting telecommunications traffic
Inventor: BUSHNELL WILLIAM JACKSON
IPC: H04Q3/545
Filed: 1992-04-14
Granted: 1995-08-15
Abstract: This invention relates to a method of establishing connections over a public switched telephone network to a customer whose telephone number is in a block associated, for routing purposes, with a first telephone switching system, but who is actually served by a second telephone switching system. The facility for carrying out this method is desirable in order to serve customers who need the advanced functions of a digital switching system, who are currently served by ananalog switching system, and do not wish to have their telephone number changed when they switch to being served by the digital switching system. In accordance with the invention, a common channel signaling initial address message is sent to the first system. The first system translates the telephone number of that initial address message and finds that the customer for that telephone number is now served by asecond switch. The first switch then sends a release message containing the identification of the second switch back to the source of the initial address message. The source of the first initial address message then sends a second initial address message to the identified second switch and the call connection can now be established to the customer served by the second switch. During the time the customer is being moved from the first switch to the second switch, one of the two returns a "temporarily out of service" type of announcement.
Patent CA-2067047-C (CA)
Title: Oscillating circuit
Inventor: SHIGA NOBUO
IPC: H01P7/10
Filed: 1992-04-24
Granted: 1997-03-04
Abstract: There is disclosed an oscillating circuit comprising a FET formed on a substrate a series feedback capacitor connected to a source of said FET and formed on said substrate a microstrip line connected to  a gate of said FET and formed on said substrate and a dielectric resonator electromagnetically coupled to said microstrip line and located near said microstrip line.
Patent CA-2068416-C (CA)
Title: Tool guide and contour sander for use therewith
Inventor: WALSH DAVID C
IPC: B24D15/00
Filed: 1990-11-15
Granted: 1994-09-06
Abstract: TOOL GUIDE AND CONTOUR SANDER FOR USE THEREWITH     ABSTRACT        A tool guide temporarily attachable to vehicle body panels or other surfaces to provide a straight edge, and a contour sander for use in connection with a straight edge. The tool guide includes an elongated member having a longitudinal edge surface for guiding a work tool, and suction cups mounted on tongues extending laterally from the body of the tool guide.  The tongues are angled in relation to the body, so that the tongues exert a cantilever force urging the tool guide against a surface when the tongues are secured against the suction cups.  The contour sander includes a number of flat blades mounted side-by-side and each having a longitudinal edge for contacting a contoured work surface.  A clamp holds the blades in parallel juxtaposition and selectively loosens the blades for conforming contact with the contour.  Finger grips are formed at the ends of the blades, allowing the operator to raise or lower any particular blade and obtain a sharper or more accurate reproduction of contour if desired.
Patent CA-2068933-C (CA)
Title: Enzymatic treatment of plant and animal oils
Inventor: AALRUST ERIK
IPC: C12S3/18
Filed: 1992-05-19
Granted: 1995-12-19
Abstract: The content of phosphorus-containing components, and the iron content, of an edible vegetable or animal oil, preferably an oil such as soybean oil which has been wet-refined to remove mucilage, is reduced by enzymatic decomposition by contacting the oil with an aquous solution of phospholipases A1, A2, or B and then separating the aqueous phase from the treated oil.
Patent CA-2070756-C (CA)
Title: Field-effect transistor
Inventor: NAKAGAWA YOSHIKAZU
IPC: H01L21/338
Filed: 1992-06-09
Granted: 1997-01-21
Abstract: A field-effect transistor (FET) in which an InGaAs layer formed on a GaAs substrate is formed in such a manner that the In composition ratio on the gate electrode side on the substrate surface is made small and the In composition ratio on the GaAs substrate side is made large.  Thereby, the FET does not cause a decline in the mutual conductance in the FET and a decline in the noise figure ( NF ) even if negative voltage is applied to a gate electrode.
Patent CA-2072168-C (CA)
Inventor: ST DENIS LUCIEN
IPC: B21D39/02
Filed: 1992-06-23
Granted: 1995-05-16
Abstract: This invention relates to a machine and a method for forming a unitary structure from a first steel panel having an upturned flange and a second steel panel having a flat edge portion.  The machine is comprised of a support surface for receiving the two panels in a nested relation.  The support surface, holding the nested panels, is moved to a pre-hem position.  The support surface then presses the flange of the first panel against a pre-hem flange engaging member to bend the flange to approximately 45° with respect to the plane of the first panel.  The support surface moves the nested panels to a final hem position.  The support surface then presses the flange against a final hem engaging member to bend the flange into full engagement with the edge portion of the second panel to form a unitary structure.
Patent CA-2072185-C (CA)
Title: Ampholyte terpolymers providing superior conditioning properties in shampoos and other hair care products
Inventor: CHEN SHIH-RUEY T
IPC: A61Q5/12
Filed: 1992-06-23
Granted: 2002-10-01
Abstract: Ampholyte terpolymer conditioning additives for hair care products are disclosed which improve wet and dry hair combability, especially detangling and reduced static flyaway, sheen, and fixative properties, especially curl retention. The ampholyte terpolymers may have a weight average molecular weight of from about 10 thousand to 10 million, and comprise (a) from at least 1 to as much as 95 weight percent of a nonionic monomer, (b) from at least 5 to as much as 80 weight percent of a cationic monomer, and (c) from at least 1 to as much as 75 weight percent of an anionic monomer. In a preferred embodiment, the amount of the cationic and anionic components is such that the overall % net charge of the ampholyte terpolymer is between -5.0 and +5Ø      The ampholyte terpolymers are added to hair care product formulations in amounts ranging from 0.1-10% by weight. They are particularly compatible with anionic surfactant shampoos, providing clear formulations without the loss of conditioning properties described above.
Patent CA-2072393-C (CA)
Title: Variable delay device
Inventor: HONDA FUMIAKI
IPC: H03K5/13
Filed: 1992-06-26
Granted: 2000-08-15
Abstract: A variable delay device includes a variable delay circuit (12) and a correction circuit (14). On the basis of output signals R and V from variable delay lines (30, 32) of the correction circuit, an output signal V L  by which a control characteristic of a variable delay line (16) is made substantially linear is outputted to the variable delay circuit from a linearity detector (34) of the correction circuit. The output signals R and V are also applied to a variable range detector (36), and on the basis of an output of the detector (36), an output signal V r by which a variable range of the variable delay line (16) is made constant is outputted to the variable delay circuit (12) from a reference level generator (38) of the correction circuit. The output signal V L  determines an input/output characteristic of a non-linear circuit (22) which is included in the variable delay circuit and modifies a variable amount control signal V d, and the output signal V r  is added to an output signal of the non-linear circuit by an adder (24) included in the variable delay circuit, and an adder result is applied to the variable delay line (16) as a control signal therefor.
Patent CA-2073595-C (CA)
Title: Sheet metal forming tool and method
Inventor: WILKINS NICHOLAS HARRY
IPC: B21D22/26
Filed: 1992-07-10
Granted: 1995-10-10
Abstract: There is provided a punch for use in cold forming hollow metal articles in a die without wrinkling.   The punch  is  provided  with  a  head  portion  composed  of resiliently deformable material, such as an elastomer, with cavities located in the head portion to permit controlled collapse  of  the  head portion  under  transverse  forces exerted during a forming operation.
Patent CA-2081250-C (CA)
Inventor: FUJIMURA YASUSI
IPC: H01L31/10
Filed: 1992-10-23
Granted: 2000-02-15
Abstract: This invention relates to a light detecting device comprising a first conduction-type semiconductor substrate, a first conduction-type semiconductor crystal layer formed on the surface of the substrate, and a second conduction-type first region formed in the semiconductor crystal layer. The first region is surrounded by a second conduction-type second region. On the surface of the semiconductor crystal layer, an electrode is formed on the first region, and a reflection preventing layer is formed on that part of the first region inside the electrode, and a device protecting film is formed on that part of the first region outside the electrode. On the semiconductor crystal layer, a metal film is formed in contact both with the semiconductor crystal layer and with the second region. This structure enables the second region to capture unnecessary charges and further to recombine and extinguish them.
Patent CA-2091065-C (CA)
Title: Insecticidal product
Inventor: BENCSITS FRANZ
IPC: A01P7/04
Filed: 1991-09-12
Granted: 2000-05-23
Abstract: The invention concerns an insecticidal product which includes a vehicle impregnated with an insecticidal composition. The insecticidal composition contains at least one pyrethroid, at least one W-absorbing agent and at least one anti-oxidant which may be a tocopherol derivative, ascorbyl palmitate or an ester of citric acid and which is preferably coated as an emulsion on a polyethylene sheet. The product is used as a "carpet" against (lying and crawling insects such as flies and cockroaches.
Patent CA-2092875-C (CA)
Title: Method for implementing a data communication protocol stack
Inventor: MAZZOLA ANTHONY J
IPC: G06F13/00
Filed: 1993-03-29
Granted: 1999-09-28
Abstract: A system of managing memory used by communications tasks of a communications network operating with a multi-layered communications protocol, Specially formatted buffers are used to contain data to be passed down the protocol stack of a source node, across a communications link, and up the protocol stack of a destination node. before entering the source stack, message data is presegmented so that each buffer contains only so much message data as may be transmitted as a single data unit from source to destination, even after all layers of the source stack have added layer headers to that portion.      Then, when the buffers axe being passed within the source stack, any layer may segment the message data by simply unlinking buffers and adding its layer header to each segment. Inter-layer data passing is by means of exclusive access to buffers by one layer at a time. At the source stack, any layer that must send multiple copies of the message data may checkpoint the buffers and thereby regain the same buffers. At the destination stack, the buffers may be reassembled by relinking them.
Patent CA-2097135-C (CA)
Title: Fast response film coater
Inventor: HOGAN PATRICK T
IPC: H05K3/00
Filed: 1993-05-27
Granted: 2005-02-01
Abstract: A film coater for applying a coating material to selected areas on a target substrate, such as a printed circuit board, having a dispenser body with a plunger moveable therein between an open and closed position. A flow of pressurized air which moves the plunger to the open position is controlled by a valve carried by the dispenser body, and a plurality of springs return the plunger to the closed position. The number of return springs is selected to provide a variable biasing force so that movement of the plunger is controlled to eliminate or at least significantly reduce hammering, tapering and drooling, particularly when the dispenser is operated intermittently.
Patent CA-2104004-C (CA)
Title: Arrangement in tree-processing assembly
Inventor: LARSSON SUNE
IPC: A01G23/091
Filed: 1992-02-05
Granted: 2002-05-28
Abstract: The present invention relates to an arrangement in a tree-processing assem-bly of the type comprising a frame base (2) which is connectible to the tip of a crane via a rotator (3) and with which a pivotable carrier (5) is hingedly connect-ed, said carrier comprising at least one set of grapples (6, 6,', 6") for gripping and holding a log, and a cutting tool, such as a chain-saw guide bar ( 12), att-ached to the lower part (11) of the carrier. On the lower pan (11) of the carrier (5) there is mounted a rotary saw blade (15) which is pivotably movable between an inactive position in which it is swung in towards the carrier, and an active posi-tion in which it is swung out from the car-rier and in which it can cut, by means of an outer half, a shrub layer and/or small frees.