baber/WOPTO huggingface dataset:
Patent CA-1296053-C (CA)
Title: Switching-relieved low-loss three-level inverter
Inventor: HOLTZ JOACHIM
IPC: H02M7/48
Filed: 1988-12-19
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE          A three-level inverter, in which the upper and lower half of each phase relieves the semiconductor switching elements from excessive values of the rate of rise of the recurring positive forward blocking voltage.  This is done with a circuit arrangement in each half has a wiring diode, a switching off relief capacitor, a further wiring diode, a storage capacitor and a discharging resistor serving as the d-c load.  Additional energy feedback devices feed back, into the supplying d-c voltage source, energy which is produced in the switching-off process and is temporarily stored in the circuitry.
Patent CA-1301895-C (CA)
Title: Silicon avalanche photodiode with low multiplication noise
Inventor: MCINTYRE ROBERT J
IPC: H01L31/107
Filed: 1989-01-12
Granted: 1992-05-26
Abstract: SILICON AVALANCHE PHOTODIODE WITH LOW MULTIPLICATION NOISE         Abstract of the Disclosure There is provided an n+-p-.pi.-p+ APD having a shallow and abrupt p-n junction located about 1 to 2 µm into the APD and having a p-type conductivity region containing acceptors in an uncompensated excess concentration corresponding to a dose of between about 5 and 10X1011 acceptors/cm2.  The combination of the shallow p-n junction and the doping profile in the p-type concentration region gives rise to an electric field profile having multiplication spread substantially throughout the entire thickness of the central active region of the APD and having no drift region.  The electric field profile peaks adjacent the p-n junction in a value of about 2.9 x105 volts/cm.  The electric field profile diminishes over the distance that the p-type conductivity region extends into the APD but remains at about 1.6 x105 volts/cm to maintain multiplication throughout the thickness of the active region of the APD.  The thickness of the APD and the multiplication region extending through the APD can be achieved with an acceptable increase in operating voltage provided that the APD has a thickness less than about 40 µm.
Patent CA-1293657-C (CA)
Title: Impacting mechanism
Inventor: BIANCHI RAYMOND A
IPC: E01C23/12
Filed: 1989-03-15
Granted: 1991-12-31
Abstract: Abstract of the Disclosure Impacting Mechanism An impacting mechanism for impacting a surface.  An impacting mechanism having plungers spaced apart and adjacent allows fractured pieces to fly away and has a latch assembly that puts side loads on the plungers.  An impacting mechanism having an impact plunger disposed in generally centered relation within a tubular actuator shields the impact to contain fractured pieces and provides a plurality of latch assemblies to equalize loading.  The impacting mechanism breaks composite material into a plurality of pieces.
Patent CA-1300478-C (CA)
Title: Elastomeric woven mat seat suspension
Inventor: ABU-ISA ISMAT A
IPC: A47C7/32
Filed: 1989-04-04
Granted: 1992-05-12
Abstract: c-4045 F-139                                  Patent ELASTOMERIC WOVEN MAT SEAT SUSPENSION Abstract of the Disclosure A thin vehicle seat assembly having a tubular seat and back rest frame, seat and back rest cushion in the form of woven mats and means for attaching the mats to the seat and back rest frames.  The woven mats comprise Hytrel elastomeric filaments extending perpendicular to each other and with the mats being prestretched in both directions to at least a 5-10% elongation prior to attachment to their respective frames.
Patent CA-1321033-C (CA)
Title: Reducing the effect of processor blocking
Inventor: GAMACHE RODNEY N
IPC: G06F9/46
Filed: 1989-04-13
Granted: 1993-08-03
Abstract: Abstract of the Disclosure The supply of available tasks that may be executed by a blocked processor while it is waiting for the end of a conflict with another processor, is controlled by temporarily lowering the interrupt priority to a minimum level above which it will be permitted to accept other tasks for execution.
Patent CA-1337737-C (CA)
Title: Process for recovering gallium
Inventor: MITSCHKER ALFRED
IPC: C01G15/00
Filed: 1989-05-01
Granted: 1995-12-19
Abstract: In the process for recovering gallium from aqueous, alkaline solutions by adsorption of the gallium on to bead-polymerised synthetic resins impregnated with 8-hydroxyquinolines and elution thereof with aqueous acids, the synthetic resins employed according to the invention are macroporous polydivinylbenzene or macro-porous divinylbenzene copolymers which have been obtained by bead polymerisation of divinylbenzene or mixtures of aromatic mono-, di- and/or trivinylbenzenes containing at least 50% by weight of divinylbenzene, in the presence of methyl isobutyl ketone, and which have been loaded with 160-190 g of Kelex 100 per litre of resin; in addition the resin is washed with sodium hydroxide solution after the elution step and before the commencement of each individual service cycle.
Patent CA-1319343-C (CA)
Title: Aseptic package tap
Inventor: RAUTSOLA RIKU H
IPC: B67B7/86
Filed: 1989-05-16
Granted: 1993-06-22
Abstract: ABSTRACT OF THE DISCLOSURE       A tap for aseptic packages of the type which contain solutions and, in particular, solutions for medical applications.  The type has a body, a packaging penetrating tip extending from the body, a liquid passageway extending from the tip and through the body for dispensing liquid from the package and a fluid passageway extending from the tip and through the body for admitting make-up air to the package interior.  A cylindrical member of resilient material is positioned between the tap body and its penetrating tip and is insertable through the package wall in trailing relation to the tip.  The resilient member is selectively compressed along its cylindrical axis to expand within the package and engage the wall to seal the orifice formed by the tip on penetration of the package wall and to secure the tap to the package.
Patent CA-1324377-C (CA)
Title: Lignin derived quinonic compound mixtures useful in the wood pulping process
Inventor: DIMMEL DONALD R
IPC: D21H17/00
Filed: 1989-06-01
Granted: 1993-11-16
Abstract: Abstract of the Disclosure A method for the preparation of a mixture of fused ring quinone type compounds from lignin and lignin derived substances.  The mixture of fused ring quinone compounds has been found useful in the wood pulping process as an accelerator in the degradation and separation of wood lignin from the other principal wood constituents, cellulose and hemicellulose.
Patent CA-1338109-C (CA)
Title: Pyridine derivatives and intermediates thereof
Inventor: ISHII AKIO
IPC: A61K31/55
Filed: 1989-06-16
Granted: 1996-03-05
Abstract: A  pyridine  derivative  represented  by  formula (I):                                            ( I ) wherein the symbols are as defined in the specification, which exhibits selective, potential, and long-lasting  inhibitory  activity  on  biosynthesis  of thromboxane  A2  and  is  useful  in  the  treatment  and prevention of a broad range of diseases.
Patent CA-1338672-C (CA)
Title: Process for the synthesis of the levodopa
Inventor: CANNATA VINCENZO
IPC: C07C229/36
Filed: 1989-07-12
Granted: 1996-10-22
Abstract: New process for the synthesis of the levodopa, L-(-)-2-amino-3-(3,4-dihydroxyphenyl)propionic acid, drug used in the treatment of the Parkinson's disease.  The process consists in resolving with (+)-camphorsulfonic acid, or with a salt thereof, the (+),(-)-2-amino-3-(3,4-dimethoxyphenyl)propionitrile, obtained from the 3,4-dimethoxyphenylacetaldehyde, and in the subsequent hydrolysis and demethylation, by means of concentrated solutions of haloid acids, of the (+)-2-amino-3-(3,4-dimethoxyphenyl)propionitrile and of salts thereof.
Patent CA-1327438-C (CA)
Inventor: HAKANSSON JAN T
IPC: B65B61/20
Filed: 1989-07-14
Granted: 1994-03-08
Abstract: A b s t r a c t Method of attaching a drinking straw to a pack and apparatus for carrying out the method The specification describes a method of attaching a packed drinking straw (3) to a pack (11), and an apparatus for that purpose, wherein the packs (11) can be transported in a defined position on a conveyor (10) which can be moved continuously at a first speed.   As a means of providing such a method and such an apparatus, in cases where the straw (3) is itself packed, the invention proposes that the packed drinking straws (3) be supplied in the form of a strip (2), separated, held by vacuum and intermittently conveyed to a transfer station (I-III, 6), from which the intermittent movement is converted to a continuous movement, and that the separated packed straws (3) then be attached to continuously conveyed packs (11).  The method is carried out with the apparatus, in that a movably controllable pressure arm (17) has a means (16) for holding the straw (3), and can be moved along an application section (IV-V) adjacent the pack conveyor (10) at the same speed, in such a way that the straw (3) is pressed on and attached along that application section (VI-V).
Patent CA-1327158-C (CA)
Inventor: WALLIS BERNARD J
IPC: B21D28/16
Filed: 1989-08-16
Granted: 1994-02-22
Abstract: Abstract of the Disclosure A die stamping system includes opposed die members which clamp a metal workpiece to be shaped, cut or pierced after which the die members are moved away from one another and a part is subsequently ejected wherein the ejector is controlled for a selected delay time by a plurality of cylinder assemblies mounted in a manifold so that they are connected to a source of inert gas such as nitrogen under high pressure and to a source of hydraulic pressure. Each cylinder assembly includes a piston associated with and exposed to, the nitrogen in the manifold.  The cylinder assemblies are connected to a single hydraulic valve which has associated therewith an accumulator and which is operated simultaneously to actuate the cylinders. The hydraulic lines to the cylinders are provided in the manifold.
Patent CA-1311541-C (CA)
Title: Controlled impedance plug and receptacle
Inventor: LAZAR MICHAEL
IPC: H01R24/38
Filed: 1989-09-19
Granted: 1992-12-15
Abstract: ABSTRACT A controlled impedance connector assembly comprised of a mutually engageable plug and receptacle for termination of coaxial cable leads in a manner which enables rapid attachment to and detachment from a user board of a very large number of signal leads while ensuring an acceptable level of controlled impedance from the coaxial cable to the user board. The receptacle includes a backup plate and a plurality of metallized grounding segments fixed to the backup plate and having a plurality of spaced parallel terminal receiving bores therein extending between opposed surfaces. An insulation plate is fixed to each grounding segment and overlies one of the surfaces. A plurality of pin contacts are fixed to the insulation plate such that a head member extends into an associated terminal receiving bore and an oppositely directed tail member is adapted for termination at available circuitry. The plug includes a frame mounting a plurality of dielectric segments each having a plurality of parallel spaced terminal receiving bores extending between a front and rear face. The dielectric segments are floatingly mounted for movement within defined limits in directions transverse to the axes of the terminal receiving bores. A terminal mounted to the extremity of each of a plurality of coaxial leads is removably received in an associated terminal receiving bore with a locking spring being utilized to prevent inadvertent removal of a terminal but subject to purposeful manipulation to enable removal of the terminal. Each bore of the grounding block receives and retains a barrel spring for frictionally holding a terminal in place engaged with the lead member of a pin contact. In another embodiment, a plurality of side by side dielectric strips replace the single insulative plate and permit soldered connections between the pin contacts and stripline cable at a location remote from the receptacle. When the heat employed in soldering the connections has dissipated, the strips are then attached to a one piece grounding block thereby avoiding harm of other components by reason of the heat. The dielectric strips are shaped to enable termination of a high density of stripline cables without causing undue interference between neighboring cables.
Patent CA-1318297-C (CA)
Inventor: LERNER HERSHEY
IPC: B65B9/08
Filed: 1989-09-29
Granted: 1993-05-25
Abstract: ABSTRACT      A machine find method for loading bags of a preformed web of side interconnected bags. The top of a bag web is slit open and then fed between a pair of belt conveyors. The tops of the bags projecting over the conveyors belts are folded down over them and then gripped by a second pair of conveyor belts. At a load station the belts are spread to open bags sequentially and one at a time for loading. After loading a bag is separated from the web and fed through a sealing section.
Patent CA-1332746-C (CA)
Inventor: BLASER GILES R
IPC: B65H43/00
Filed: 1989-09-29
Granted: 1994-10-25
Abstract: Abstract Of The Present Invention A web drive cyclically moves a web a fixed distance.  First and second spaced draw roll units include separate servo motors.  Separate programmed controllers are connected to energize the servo drives with a time motion profile including acceleration and deceleration periods to move the web in a fixed time period.  The one programmed controller generates the profile program each cycle during the execution of program to move the web the next cycle.  The generated program is down-loaded to the second controller to duplicate energization of the second servo motor.  A dancer unit between the drive rolls maintains the tension with a change in web length and includes a movable roll unit.  A potentiometer sensor is coupled to the roll unit and establishes an output signal voltage proportional to the direction of the web change and to the length thereof.  The second controller includes a drive modifying program connected to the sensor and responsive to the signal voltage to change the second drive profile for the second servo motor for the next succeeding web feed and compensates for the change in web length and move the web in accordance with the modified drive profile.  The potentiometer sensor is disabled during a continuous or jog run and serves to hold the web tension.
Patent CA-1287689-C (CA)
Inventor: ASHKIN PETER B
IPC: G06F13/26
Filed: 1990-04-12
Granted: 1991-08-13
Abstract: ABSTRACT OF THE DISCLOSURE           This invention discloses a method for transferring signals and data between a host computer and first and second peripheral devices.  The signals and data are transferred under the control of the computer over a bus coupling the first and peripheral devices to the host computer.  The peripheral devices are initially inactive and have the same first address.  This is an efficient method for providing the transfer.
Patent DK-163543-C (DK)
Inventor: DREXLER JOHANN
IPC: H01H1/20
Filed: 1985-03-28
Granted: 1992-07-27
Abstract: A contact arrangement for switchgear with multiple disconnects by contact points connected in parallel of two contact bridges aligned in a contact actuation link uses a spring collar for a contact pressure spring. The spring collar has cutouts transverse to the spring-action direction into which the contact bridges with the spring collars can be inserted and locked in place transverse to their longitudinal direction. The spring collar is rounded at two facing sliding surfaces in the contact actuation link aligned transverse to the longitudinal direction of the contact bridges. This assures optimal fitting of the contact bridges to the fixed contact components without jamming the spring collar in the alignment.
Patent DK-153974-C (DK)
Inventor: RIEPE WALDEMAR
IPC: A01K61/80
Filed: 1980-10-15
Granted: 1989-02-20
Abstract: 1. Portion dispenser for flocculent or granular feedstuffs, especially fish food, having a storage container (3) for the food (4) which container has a slot (13) in a transverse wall (12) in the vicinity of the base through which slot the food can be discharged, characterized in that the storage container (3) is displaceably mounted, transversely to its slotted transverse wall (12), on the base (2) of a container (1) which encloses the storage container, and the base (7) of the storage container - at its end provided with the slotted transverse wall (12) - has an extension (8) provided with a window (9), the free end of said extension sealing a slot (10) in the transverse wall (11) of the container in the rest position of the storage container, said slot being dimensioned for the passage of this extension therethrough, and the free end of said extension passes in front of the slotted transverse wall of the container with its window by displacement of the storage container.
Patent FI-52310-C (FI)
Inventor: SCHWARZKOPF AUGUST
IPC: B65D33/00
Filed: 1965-11-29
Granted: 1977-08-10
Abstract: 1,131,063. Dispensing bags; carrier bags. WINDMÍLLER & HÍLSCHER. 10 Nov., 1965 [30 Nov., 1964; 8 March, 1965], No. 47724/65. Headings A4G and A4T. A bag dispensing supply block consists of a stack of plastics bags in which the handles are integral with the bag walls and are formed by removing a portion of the wall along a severance line which is partly a tear line, adjacent removable portions being heat sealed together. The removable portions have a support hole or are clamped to a support whereby individual bags may be torn off. The bags are formed from tubing which may be gussetted with the removable portions intruding into the gusset. One mid-top edge portion may be removed to give two handles or two midside edge portions may be removed to give twin bags joined by a two-ply handle web at the middle of the mouths.
Patent FI-65479-C (FI)
Inventor: POLON JUHANI
IPC: F16K47/04
Filed: 1980-06-27
Granted: 1984-05-10
Abstract: A method for attenuating a medium flow passing through a valve provided with a flow passage. Into the valve, a substantially ball-like or ball-segment shaped or conical or cylindrical plug-like closure member has been fitted turnably. The attenuating of the flow has been arranged as taking place in both flow directions mainly in the passage in the closure member or in a bore passing through the closure member. The attenuating effect is increased as the valve is being closed and the attenuating effect is correspondingly reduced as the closure member is being turned towards the open position. In the passage in the closure member or in the bore passing through the closure member, the length of the path of flow of the pressure medium is increased and the direction of the flow of the pressure medium is alternated. The more the valve is being closed, the longer becomes the path of flow of the pressure medium in the bore or passage in the closure member and, correspondingly, the higher becomes the number or changes in direction of the pressure medium flow within the range of the passage or bore in the closure member.
Patent FI-79427-C (FI)
Inventor: RUDOLF HANS-WERNER
IPC: H02H9/04
Filed: 1983-04-25
Granted: 1989-12-11
Abstract: 1. A circuit arrangement for surge voltage protection of interface circuits (SLIC 1 to SLIC 3) constructed of semiconductor components and connected in groups to a supply voltage source to connect two-wire, analogue subscriber connection lines (TL) to telephone exchanges, where the circuit arrangement contains, in respect of each interface circuit, a diode bridge whose diodes (D1 to D4) are normally biased in the blocking direction by the supply voltage and which has one diagonal connected to the two wires of the subscriber connection line (TL) in question and its other diagonal connected to the supply voltage via at least one blocking element (Da, L) which assumes the blocked state when a surge voltage occurs and is common to a plurality of interface circuits, and where the circuit arrangement likewise contains by-pass circuit elements (C, V) common to a group of interface circuits via which leakage currents are diverted from the last-mentioned bridge diagonal to a circuit point which carries reference potential on the occurrence of a surge voltage, characterised in that by-pass circuit elements (C, V) are used which flatten and/or limit voltage swings occurring on the occurrence of surge voltages across the bridge diagonal to which they are connected.
Patent FI-89184-C (FI)
Inventor: MAEDA SUSUMU
IPC: C12N15/21
Filed: 1985-06-11
Granted: 1993-08-25
Abstract: A method of producing useful substances which comprising propagating in cultured cells or in a host a recombinant Bombyx mori nuclear polyhedrosis virus (BmNPV) DNA is disclosed. The BmNPV DNA is produced by recombination with a double-stranded DNA containing (i) a 5'- upstream BmNPV DNA fragment originally occurring upstream from the structural gene coding for the production of polyhedral protein and also including the promotor region for the structural gene, (ii) a translational start codon and (iii) a gene coding for the production of a useful substance exogenous to the virus, with or without (iv) a 3'-downstream BmNPV DNA fragment originally occurring downstream from the structural gene coding for the production of polyhedral protein.
Patent FI-81426-C (FI)
Inventor: LJUNGKVIST STIG-AKE
IPC: E02D31/00
Filed: 1986-03-14
Granted: 1990-10-10
Abstract: The invention helps to find a way for creating a ventilated space on an existing floor damaged by moisture. On this way the resulting effects from moisture are held low. The invention consists of a moulding with the form of an inverted t. Holes (2) are located for attachment of the moulding to the lower floor. The lower part of the moulding has also at right angle going passages (5). The supports (4), shaped of the moulding on the either side, are used to carry plate-type material, which between two moldings shaped the ventilated space.
Patent FI-90416-C (FI)
Inventor: SHUTSKE GREGORY MICHAEL
IPC: A61P25/28
Filed: 1988-02-11
Granted: 1994-02-10
Abstract: There are disclosed compounds having the formula <CHEM> wherein R is hydrogen, loweralkyl or loweralkylcarbonyl; R1 is hydrogen, loweralkyl, loweralkylcarbonyl, aryl, diloweralkylaminoloweralkyl, arylloweralkyl, diarylloweralkyl, oxygen-bridged arylloweralkyl or oxygen-bridged diarylloweralkyl; R2 and R3 are independently H or CH3; X is hydrogen, loweralkyl, cycloalkyl, loweralkoxy, halogen, hydroxy, nitro, trifluoromethyl, formyl, loweralkylcarbonyl, arylcarbonyl, -SH, loweralkylthio, -NHCOR4 or -NR5R6 where R4 is hydrogen or loweralkyl, and R5 and R6 are independently hydrogen, loweralkyl or cycloalkyl; Y and Z are independently a direct bond, CR7R8 or CR7R8-CR9R10; and P and Q are independently CR7'R8', CR7'R8'-CR9'R10' or CR7'R8'-CR9'R10'-CR11R12, where each of R7 through R12 and R7' through R10' is independently H or CH3; stereo, optical and geometrical isomers thereof, and pharmaceutically acceptable acid addition salts thereof, which are useful for enhancing memory.
Patent FI-87046-C (FI)
Inventor: CAPPA GIULIO
IPC: A62B9/04
Filed: 1988-10-05
Granted: 1992-11-25
Abstract: Device for preventing the inflow of air into a gas mask during the substitution of its filter (1) in the presence of contaminated atmosphere. The device comprises a small plate (12) having a central stem (13) which passes through the support (9) of a check valve admitting air to the respiratory tracts and a spring (14) which pushes said small plate (12) against the diaphragm (7) of the check valve when the filter is removed from the mask.