baber/WOPTO huggingface dataset:
Patent CA-2026029-A1 (CA)
Title: Paper stacking arrangement
Inventor: DIETIKER FRITZ
IPC: B65H45/101
Filed: 1990-09-24
Abstract: ABSTRACT           In a paper stacking arrangement in which a length of  prefolded  printer  paper  with  series  of  spaced-apart apertures  adjacent  the  opposite  edges  thereof  is  driven through a printer by opposite tractor drives and then pulled from the printer by paper-pulling rollers and then dropped into a paper basket where the paper folds to form a stack, a paper  ironing  mechanism  presses  the  paper  flat  at  the opposite series of apertures prior to stacking to avoid paper jams and to provide a flatter stack of the paper within the paper basket.   Portions of the edges of the apertures in the paper which are often bent out of the plane of the paper by the pins of the tractor drive are ironed flat by the paper ironing mechanism which includes an arrangement of rollers disposed on opposite sides of the paper at the series of apertures and biased toward one another.    In a preferred embodiment of a paper ironing mechanism,  the paper pulling rollers of an arrangement for pulling the length of paper out of the printer are disposed on one side of the paper at the opposite series of apertures.   Idler rollers disposed on the opposite side of the paper are biased against the paper and the opposite paper puller rollers by leaf springs on which the idler rollers are rotatably mounted.
Patent CA-2026226-A1 (CA)
Title: 6-substituted acyclopyrimidine nucleoside derivatives and antiviral agent containing the same as active ingredient thereof
Inventor: MIYASAKA TADASHI
IPC: C07D239/54
Filed: 1990-09-26
Abstract: A 6-substituted acyclopyrimidine nucleoside derivative represented by the following general formula I or I';      wherein R1 represents a hydrogen atom, halogen atom, alkyl, cycloalkyl, alkenyl, alkynyl, alkylcarbonyl, arylcarbonyl, arylcarbonylalkyl, arylthio or aralkyl group;      R2 represents an arylthio, alkylthio, cycloalkylthio, arylsulfinyl, alkylsulfinyl, cycloalkylsulfinyl, alkenyl, alkynyl, aralkyl, arylcarbonyl, arylcarbonylalkyl or aryloxy group, those groups optionally substituted by one or more of substituents selected from a halogen atom, alkyl, halogenated alkyl, alkoxy, hydroxyl, nitro, amino, cyano and acyl groups;      R3 represents a hydrogen atom, methyl, branched alkyl or -CH2-Z-(CH2)n-R5 group where R5 represents a hydrogen atom, halogen atom, hydroxyl, heterocyclic carbonyloxy, formyloxy, alkylcarbonyloxy, cycloalkylcarbonyloxy, aralkylcarbonyloxy, arylcarbonyloxy, azido, alkoxycarbonyloxy, N-alkylcarbamoyloxy, N-arylcarbamoyloxy, N-alkylthiocarbamoyloxy, N-arylthiocarbamoyloxy, alkoxy, aralkyloxy, branched alkyl, cycloalkyl or aryl group, the alkoxycarbonyloxy to aryl groups mentioned above as R5 optionally substituted by one or more substituents selected from a halogen atom, aryl, alkyl, alkoxy and halogenated alkyl groups, Z represents an oxygen, sulfur atom or methylene group, and n represents 0 or an integer of 1 to 5, R4 represents a hydrogen atom, alkyl or aralkyl group, X represents an oxygen or sulfur atom, Y represents an oxygen or sulfur atom, provided that when R4 and Z represent a hydrogen atom and oxygen atom respectively in the formula I R5 does not represent a hydroxyl group, or a pharmaceutically acceptable salt thereof, and an antiviral agent containing the derivative or the salt thereof as an active ingredient.
Patent CA-2030740-A1 (CA)
Title: Non-fragmenting arrester with staged pressure relief mechanism
Inventor: VEVERKA EDWARD F
IPC: H02H1/04
Filed: 1990-11-01
Abstract: ABSTRACT     A non-fragmenting surge arrester with a staged pressure relief mechanism includes a liner with outlets formed in the walls thereof, a gas expansion chamber within the liner and a housing having weakened-wall regions adjacent to the outlets in  the liner.  Ionized gas formed by an internal failure is vented  from the expansion chamber through the outlets and, upon generation of sufficient pressure, fractures the housing at the weakened-wall regions.  In this manner, the generated gas forms a lower impedance path for the current which is thereby shunted around the failed internal components, preventing the generation of further internal pressure which could cause a catastrophic failure of the arrester.   2415b/1
Patent CA-2030881-A1 (CA)
Title: Sewage pump with self-adjusting cutters
Inventor: MITSCH BRIAN M
IPC: F04D7/04
Filed: 1990-11-26
Abstract: A grinder pump which includes a housing; a shaft disposed within the housing having an axis; apparatus for mounting the shaft within the housing for rotational movement thereof; a moveable cutter carried on the shaft, apparatus for coupling the moveable cutter to the shaft to cause rotation of the moveable cutter upon rotation of the shaft. A stationary cutter is carried by the housing and the moveable cutter cooperates with the stationary cutter to perform cutting along respective surfaces of the moveable cut-ter and the stationary cutter. The respective surfaces of the stationary and moveable cutters are substantially within a plane that is substantially perpendicular to the axis; and apparatus resiliently biases the moveable cutter against the stationary cutter.
Patent CA-2032533-A1 (CA)
Inventor: BABCHUK VICTOR E
IPC: A01K3/00
Filed: 1990-12-18
Abstract: PORTABLE CATTLE GATE ABSTRACT OF THE DISCLOSURE             A cattle gate has a base frame adapted to rest on a ground surface. Upright end frames are secured to the base frame at opposite ends and suspend a grid over the center of the base frame using a spring and chain suspension. The gate is a unitary structure that can be transported either using a truck or by a attaching a pair of wheels and a hitch for towing purposes.
Patent CA-2034734-A1 (CA)
Title: Amperometric detection cell
Inventor: BOWERS MARK L
IPC: G01N27/49
Filed: 1991-01-22
Abstract: IMPROVED AMPEROMETRIC DETECTION CELL                 ABSTRACT OF THE DISCLOSURE      An improved electrochemical  detection cell comprising a palladium reference electrode.
Patent CA-2035341-A1 (CA)
Title: Process for the preparation of naphthalene-sulfonic acid/formaldehyde condensates having a low free formaldehydecontent
Inventor: JAGER EMMERICH
IPC: C08G16/00
Filed: 1991-01-31
Abstract: Abstract Process  for  the  preparation  of  naphthalene-sulfonic  acid/formaldehyde  condensates  having  a  low content of free formaldehyde, in which the condensation products of naphthalenesulfonic acid and formaldehyde obtained after the condensation are brought to a pH of greater than 11.5 at a temperature of not less than 80°C immediately after the condensation, and are kept under these conditions until the desired formaldehyde content is reached. The resins are preferably used as plasti-cizers for building materials, for example as concrete plasticizers.
Patent CA-2039124-A1 (CA)
Title: High productivity joint compound
Inventor: BURDICK CHARLES L
IPC: C09D5/34
Filed: 1991-03-26
Abstract: Joint compounds suitable for use with plaster wallboard are disclosed wherein the use of an aqueous suspension of a nonionic cellulose ether such as hydroxyethylcellulose in an inorganic salt as the thickener result in much shorter mixing times, higher production rates and improved joint compound properties.
Patent CA-2040237-A1 (CA)
Title: Long-acting liposome peptide pharmaceutical products and processes for the preparation thereof
Inventor: KIBAT PAUL-GERHARD
IPC: A61K38/58
Filed: 1991-04-11
Abstract: Abstract of the disclosure:                 HOE 90/F 112 Long-acting liposome peptide pharmaceutical products and processes for the preparation thereof Liposome products  for peptides with extended peptide release are described. The peptides have a molecular weight  between  500  and 10000,  and  the  phospholipid component of the liposome membrane has a phase-transition temperature  of  at  least  20°C  and  contains  mainly saturated fatty acids. The activity persists for more than 14 days after s.c. or i.m. injection. Processes for preparing these liposome products are also described.
Patent CA-2040651-A1 (CA)
Inventor: MUIA RAMON A
IPC: C02F1/50
Filed: 1991-04-17
Abstract: A method for controlling zebra mussels in aqueous systems comprising treating aqueous systems which contain zebra mussels or which are prone to zebra mussel infestation with an effective amount of a water-soluble dialkyl diallyl quaternary ammonium polymer (polyquat).  A preferred polymer is a poly(quaternary ammonium) compound having the recurring structure [DMDAAX-] resulting from the polymerization of monomeric dimethyl diallyl ammonium X-, wherein X- is any suitable anion.
Patent CA-2043266-A1 (CA)
Title: Wafer transfer device
Inventor: HILLMAN GARY
IPC: B65H3/14
Filed: 1991-05-24
Abstract: ABSTRACT A   transfer   apparatus   and   method   for transferring a wafer from one location to another in a controlled  environment.    The  apparatus  includes  a movable member for supporting a wafer thereon,  which member is operative for transferring the wafer from one location to another.  The apparatus is characterized by environment control means connected to the member for maintaining the wafer in a controlled environment while transferring the wafer  from one  location to  another independent of the environment surrounding the member. The environmental control means in accordance with one embodiment includes a first shroud overlying a portion of the member to provide a chamber for receiving the wafer, and a second shroud overlying and spaced from the first shroud to provide a passageway therebetween.   A first supply means is provided in communication with the chamber for supplying a gas therein and a second supply means is provided in communication with the passageway for supplying a gas therein.
Patent CA-2048262-A1 (CA)
Title: Control of space heating and water heating using variable speed heat pumps
Inventor: DUDLEY KEVIN F
IPC: F24D19/10
Filed: 1991-08-01
Abstract: CONTROL OF SPACE HEATING AND WATER HEATING        USING VARIABLE SPEED HEAT PUMPS               ABSTRACT OF THE DISCLOSURE            In an integrated heat pump and water heating system with a variable speed compressor drive, a variable speed indoor fan, and an expansion valve with a variable duty cycle the indoor fan speed is controlled as a function of a space heating load, and the compressor speed is controlled as a function of outdoor temperature and space heating load.
Patent CA-2049028-A1 (CA)
Title: Covalent conjugates of lipid and oligonucleotide
Inventor: BISCHOFBERGER NORBERT W
IPC: A61K47/48
Filed: 1990-02-23
Abstract: A conjugate is provided wherein a lipid is covalently coupled to an oligonucleotide having a nucleotide sequence that is either of interest or substantially complementary to a nucleotide sequence of interest. The conjugate is useful for nucleic acid purification, diagnostic methods, and therapeutic applications. The therapeutic aspect includes conjugates wherein the oligonucleotide contains an antisense nucleotide sequence to a sequence encoding a polypeptide responsible for a pathogenic disorder.
Patent CA-2049263-A1 (CA)
Title: Molded case circuit breaker cover insert
Inventor: MCKAY GEOFFREY H
IPC: H01H3/60
Filed: 1991-08-15
Abstract: MOLDED CASE CIRCUIT BREAKER        COVER INSERT                   ABSTRACT OF THE DISCLOSURE    A molded case circuit breaker of the type using electrodynamic repulsion to separate the circuit breaker con-tacts under intense overcurrent conditions also includes an arc chute arrangement for cooling and quenching the arc that occurs during such contact separation.  A plastic cover insert added to the interior of the circuit breaker cover multi-functionally retains the arc chute within the circuit breaker case while providing clearance for the circuit breaker operating handle shutter.  A resilient pad on the top surface of the cover insert receives the circuit breaker operating handle skirt upon contact separation and dampens the energy imparted to the operating handle and to the circuit breaker cover.
Patent CA-2049578-A1 (CA)
Title: Collision avoidance system
Inventor: TAYLOR WILLIAM H
IPC: G01S17/931
Filed: 1991-08-19
Abstract: A collision avoidance system particularly suited for automotive applications includes an electro-optical rangefinder scanner, retroreflectors on target vehicles, and a processing unit. The rangefinder supplies data on the range and angle of target vehicles to the processor, which monitors each target vehicle's position, speed and acceleration and constantly determines and updates target range, angle, velocity, acceleration and predicted separation distances. A warning signal or evasive manuever instructions are issued if the predicted separation at the time of intercept is below a minimum acceptable value.
Patent CA-2050333-A1 (CA)
Title: Cleaning method and cleaning apparatus
Inventor: INADA MINORU
IPC: B08B3/08
Filed: 1991-03-15
Abstract: Abstract of the Disclosure An object to be cleaned is cleaned with an cleaning agent which mixes a base cleaning agent such as silicon-containing cleaning agent or an isoparaffin containing cleaning agent with a surfactant or a hydrophilic solvent to promote the cleaning power.  The object is rinsed with the base cleaning agent alone after it goes through the first cleaning step as described above.  Then,  this is followed by the finishing treatment by the use of hot air or steam drying.          The base cleaning agents can be recovered and recycled, improving economy in the case with the use of two or more cleaning agents in combination.  The excellent properties of degreasing and dewatering, comparable to those of flon system, can be obtained using a mixture of silicon-containing or isoparaffin-containing cleaning agents with surfactants and hydrophilic solvents and maintaining safety in environment.
Patent CA-2051696-A1 (CA)
Title: Self-routing multipath network for switching asynchronous time-division multiplex cells
Inventor: HENRION MICHEL A
IPC: H04L12/54
Filed: 1990-05-23
Abstract: A self-routing multiple-path switching network for switching asynchronous temporal multiplexing cells comprises input ports (pi1, pi64...), output ports (po1, po64...) and switches (TSi1, TSi16...) arranged in several stages of interconnected switches. Each switch has inputs and outputs and is arranged so as to transfer a cell received at one of its inputs to one of its outputs in function of path data associated with said cell. Each elementary switch of a stage of at least one network has at least three outputs arranged in groups of outputs of one or more given outputs. In function of path data associated with a cell received at any one of its inputs, the switch (TSi1, TSi16) is arranged so as to identify an assembly of one or more said groups of outputs and to transfer said received cell to an output of each group of outputs of the selected assembly.
Patent CA-2053813-A1 (CA)
Inventor: ROGERS RICHARD E
IPC: G01V8/20
Filed: 1991-10-21
Abstract: A method and apparatus for sensing the presence of a document moved to a printing station in a printer and for detecting skewness (if any) of the document at the printing station. A first light-detector pair arid a second light-detector pair are used, with the sensitivity of each of the detectors in the light-detector pairs being adjusted each time the printer is turned on. A controller and a stored program are used to adjust the sensitivity of the detector along with a resistor network providing steps of resistance. The particular resistance step to which a detector is adjusted also gives a measure of the useful life left for the detector.
Patent CA-2054536-A1 (CA)
Title: Method for manufacturing cast iron parts by means of metal moulds incorporating a vacuum system
Inventor: FERNANDEZ DEL VALLE FLORENTINO
IPC: B22D27/15
Filed: 1991-10-30
Abstract: ABSTRACT:           Method for manufacturing cast iron parts by means of metal moulds incorporating a vacuum system.  The object of the inven-tion is to fit the installation with air outlet nozzles connec-ted to a channel, from which a vacuum is obtained inside  the mould, the molten metal entering the mouth located on the up-per side, the introduction of the molten metal being automati-cally stopped when the cavity is full, the mould being fitted with an airtight closure during its filling which is locked and held by pressure exerted toward the upper side by hydraulic cy-linders located on the lower side, a predetermined period  of time being elapsed later in order to insure the hardening, and then the mould being opened through a mechanical ejecting system, so assuring that the workpart is pulled simultaneously apart from the mould itself, the vacuum action being carried out later in a reverse manner and air being applied inside the mould.
Patent CA-2056148-A1 (CA)
Title: Walking frame for an infirm patient with adjustable leg length
Inventor: MCFARLAND GREGORY L
IPC: A61H3/04
Filed: 1991-11-25
Abstract: ABSTRACT OF THE DISCLOSURE          WALKING FRAME FOR AN INFIRM PATIENT WITH ADJUSTABLE LEG LENGTH               A walker  frame of  the A-frame type  includes a front  frame element  including  two depending  legs and a rear frame  element  also  including  two  depending  legs  which  are pivoted about a transverse axis at the top of the frames and are held at a required spacing by straps at the bottom.   The rear frame  includes an integral cross bar at the top of the legs which forms as backrest for a seat placed on a pair of cross  bars  at  an  intermediate height of the front and rear frames respectively. The leg length of each leg is adjustable by a sliding extension portion which passes along the inside of the main leg portion to a position beyond the fastening point of the cross bar and the fastening of the cross bar is arranged without penetration  of  the outer  tube  to allow the sliding action to occur.   The fastening of extension portions to the main portion occurs by threaded fasteners mounted inside the tube and extending from the inside surface of the inner tube through  to  the  outside  surface  of  the outer tube which  is attached a fastening plate.
Patent CA-2060709-A1 (CA)
Title: Glass fiber forming composition, glass fibers obtained from the composition and substrate for circuit board including the glass fibers as reinforcing material
Inventor: KOMORI KIYOTAKA
IPC: C03C13/00
Filed: 1992-02-05
Abstract: A glass fiber forming composition exhibits a remarkably high dielectric constant .epsilon.r as well as superior chemical resistance, yet it is readily spun into glass fibers.  The composition is characterized to show a devitrification temperature which is lower than a spinning temperature at which the glass composition exhibits a viscosity of 102.5 poise, so as to be readily spun into corresponding glass fibers.  The composition consists essentially of 40 to 65 mol% of SiO2; 20 to 45 mol% of at least one component selected from the group consisting of MgO, CaO, SrO and BaO; 5 to 25 mol% of at least one component selected from the group consisting of TiO2 and ZrO2; and 0.5 to 15 mol% of NbO5/2 as calculated from an incorporated amount of Nb2O5.          Alternately, the composition consist essentially of 40 to 65 mol% of SiO2; 20 to 45 mol% of at least one component selected from the group consisting of CaO, SrO and BaO; 5 to 25 mol% of at least one component selected from the group consisting of TiO2 and ZrO2; 0.5 to 15 mol% of NbO5/2 as calculated from an incorporated amount of Nb2O5; and 0.5 to 15 mol% of AlO3/2 as calculated from an incorporated amount of Al2O3.  The composition is also characterized to incorporate at least 85 mol% of a total amount of the oxides and have a dielectric constant [.epsilon.r] of 9 or more at 1 MHz and 25°C.
Patent CA-2060845-A1 (CA)
Inventor: GEIGER BERTRAM
IPC: B07C5/342
Filed: 1992-02-07
Abstract: A method and apparatus for separating pieces of wood into different qualities in a wood sorting process is characterized in that the brightness as well as the texture of the surface of the wood are measured, and the pieces of wood are separated into different quality groups according to the measurements results obtained.
Patent CA-2061900-A1 (CA)
Title: Curable desensitizing ink for the printing of self-copying sheets
Inventor: AMON ALBERT
IPC: B41M5/128
Filed: 1992-02-26
Abstract: ABSTRACT OF THE DISCLOSURE         A  desensitizing  ink  for  printing  by wet or dry offset,  flexographic  or typographic printing is disclosed and  claimed.  This ink contains at least one desensitizing agent,  at  least  one ink binder which is polymerizable or crosslinkable  by UV light or electron beam radiations and, if  necessary,  an initiator system.  Thus, the drying time of  the printings is greatly reduced.  The ink is free from vaporizable ink solvents.            (dm/s 17.02.92)
Patent CA-2061983-A1 (CA)
Title: Platform assembly for attaching rotor blades to a rotor disk
Inventor: CORSMEIER ROBERT J
IPC: F01D5/18
Filed: 1992-02-27
Abstract: ABSTRACT      Nonmetallic airfoil blades are mounted to a rotor disk via a circumferentially spaced array of metal support members.  Each support member includes a pair or circumferentially spaced arcuate or airfoil shaped dovetail engagement surfaces.  The metal support members are secured to the rotor disk via straight dovetails while the rotor blades are secured to the support members via airfoil shaped dovetails.  The support members may include hollow portions for channeling cooling air to the airfoil blades.
Patent CA-2064543-A1 (CA)
Title: Whole ore treatment process for the recovery of nickel, cobalt and copper from sulfide ore and tailings
Inventor: GILDERS ROSS D
IPC: C22B3/42
Filed: 1992-03-31
Abstract: ABSTRACT OF THE DISCLOSURE           There is disclosed a process for recovery of cobalt, nickel and copper from sulfide bearing materials including ores and refractory metal bearing materials.  The process results in greater than 95% recovery from the sulfide material using a ferric chloride leach system.  The efficiency is obtained without the conventional disadvantages of high temperature and expensive apparatus to effect the extraction.
Patent CA-2065270-A1 (CA)
Title: Erection-inducing methods and compositions
Inventor: GERSTENBERG THOMAS
IPC: A61K38/095
Filed: 1990-09-14
Abstract: The present invention provides methods and compositions for inducing penile erections, sufficient for vaginal penetration, in a human male suffering from impotence. When the impotence is substantially only neurogenic, psycogenic or neurogenic and psychogenic, a method of the invention comprises (A) administering to the male by intracavernosal injection peptide N-terminal histidine C-terminal methionineamide and (B) sexually stimulating the male.  When the impotence is caused by severe atheroscler-osis, a method of the invention comprises (A) administering to the male by intracavernosal injection an amount of a physiologi-cally acceptable composition comprising (1) a neuropeptide selected from the group consisting of human vasoactive intestinal peptide and peptide N-terminal histidine C-terminal methionineamide and (2) an alpha-adrenergic blocker, such as phentola-mine or prazosin, and (B) sexually stimulating the male. The invention also entails a physiologically acceptable composition suit-able for use in inducing, upon administration by intracavernosal injection, an erection, sufficient for vaginal penetration, in a hu-man male suffering from impotence, which is caused by severe atherosclerosis, which composition comprises (I) a neuropeptide selected from the group consisting of vasoactive intestinal peptide and peptide N-terminal histidine C-terminal methionineamide and (2) an alpha-adrenergic blocker, such as phentolamine or prazosin.