baber/WOPTO huggingface dataset:
Patent AU-777057-C (AU)
Title: Filter cloth
Inventor: OKSANEN ESA
IPC: B01D39/08
Filed: 2000-02-14
Granted: 2007-03-15
Abstract: The invention relates to a filter cloth intended for a filter which has a variable volume and is based on diaphragm extrusion, particularly for a Larox®-type vertical pressure filter. The filtering properties of the filter cloth (5) are substantially similar in both directions through the cloth since slurry containing liquid and solids is alternately placed on the different sides of the filter cloth. The filter cloth of the invention comprises a middle layer (15) and protective layers (16a, 16b; 17a, 17b) provided on both outer surfaces of the middle layer. The middle layer can have e.g. a woven structure, and the protective layers may be slub layers attached to the middle layer by needling. The protective layers according to the invention are denser than the middle layer.
Patent AU-764663-C (AU)
Title: Biodegradable ceramic fibres from silica sols
Inventor: JOKINEN MIKA
IPC: C03B37/01
Filed: 2000-02-21
Granted: 2005-02-03
Abstract: A method for preparing controllably biodegradable silica fibres which includes spinning the fibres from a silica sol of controlled viscosity, controllably biodegradable silica fibres prepared according to the method, methods for controlling the biodegradability of the fibres, the use of controllably biodegradable fibres as sustained and/or controlled release delivery devices for biologically active agents, and pharmaceutical preparations containing such devices.
Patent CA-2006959-C (CA)
Title: Multi-link cutting tool
Inventor: JUROS KAREL B F
IPC: B26B17/02
Filed: 1989-12-29
Granted: 1993-12-07
Abstract: ABSTRACT OF THE DISCLOSURE               A multi-link cutting  tool used to cut wire, pipe, cable, tube, chain and the like.  The cutting tool utilizes  a multi-link  connecting  linkage  between  the cutter  head  and  the  handles  to  increase the leverage obtained  at  the  cutting  edge.  As  a  result  of  the connecting  linkage,  a   lower  force  is  required at the handles since they operate   through  a  greater  distance. With  this  multi-link connecting mechanism, a smaller and more powerful cutting tool can be made.
Patent CA-2009260-C (CA)
Title: Method and apparatus for the measurement of the thermal conductivity of gases
Inventor: HACHEY RAYNALD
IPC: G01N27/18
Filed: 1990-02-02
Granted: 1996-09-17
Abstract: New methods and new katharometer apparatus for the measurement of thermal conductivity of gases are provided. The apparatus employs a single katharometer element, that is maintained at a constant operating temperature. If the element temperature changes, changing its resistance, owing to passage of a gas with a different thermal characteristic, an amplifier changes the power supplied to the katharometer element to restore it to the predetermined temperature, the amplifier output being a measure of the gas thermal conductivity. Operation of the apparatus is therefore independent of the resistance/temperature characteristic of the element and is relatively insensitive to ambient temperature changes.          Preferably a thermistor is employed as the katharometer element. Various operating circuits for the katharometer are disclosed. The invent on also provides new operating methods for katharometers to reduce the sensitivity of measurement to thermal leakage and temperature changes to the katharometer body, and to permit the comparison of voltages across a series connected katharometer element and a resistor at a common reference point.
Patent CA-2011926-C (CA)
Title: Sintered polybenzimidazole/polyaryleneketone articles and method of manufacture
Inventor: ALVAREZ EDWARDO
IPC: C08G73/18
Filed: 1990-03-12
Granted: 2000-02-08
Abstract: Sintered molded article having improved thermal resistance and strength formed from a homogeneous mixture comprising from about 5 to 75 percent by weight polybenzimidazole and from about 95 to 25 percent by weight of a polyaryleneketone.
Patent CA-2012531-C (CA)
Inventor: RIVARD ALLEN J
IPC: B05B15/04
Filed: 1990-03-19
Granted: 1999-02-02
Abstract: A portable device for guiding a length of pressure sensitive adhesive coated tape partially onto the outer wrap of a roll of masking material adjacent one of its edges to provide a composite masking sheet for use in masking surfaces comprising a length of the sheet material having the tape adhered along and extending widthwise past one edge by which the composite masking sheet can be adhered to a surface.  The outer edge of the tape is not guided by the device, and a tendency that otherwise exists for the tape being adhered along the edge portion of the roll of masking material to move transversely away from the masking material so that less and less of the tape is adhered to the masking material is restricted by a tracking member mounted on a frame of the device between a hub supporting a roll of the tape and the roll of masking material.  The tracking member engages the rear surface of the tape along its edge that overlaps the masking material for less than the full width of the tape and deflects the tape toward a plane through the axes of the rolls of tape and masking material from a plane which is mutually tangent to the peripheries of the rolls of tape and masking material.
Patent CA-2025918-C (CA)
Inventor: GUILLEMINOT ODILE
IPC: F25J3/02
Filed: 1990-09-21
Granted: 2001-05-29
Abstract: L'air comprimé entrant est en partie détendu dans une turbine haute pression, puis une partie de l'air ainsi détendu est de nouveau détendue dans une turbine basse pression. La température d'admission de cette dernière est nettement supérieure à celle de la turbine haute pression. Application à la production d'azote liquide et d'oxygène liquide.
Patent CA-2026111-C (CA)
Inventor: CONVERT GUY
IPC: H01J25/02
Filed: 1990-01-26
Granted: 2000-05-30
Abstract: The invention provides for a device producing ultrahigh frequency energy from an electron beam. It mainly comprises: an electronic gun (1) producing an electron beam (8) in a so-called injection zone (3); modulating ultrahigh frequency circuitry (7) for superimposing an alternating voltage at a given frequency on a beam voltage within the injection zone, the amplitude of the said voltage being such that, in one of its alternations, it provides for transition between the passing state and the effective cathode state, thus causing modulation of the current carried by the electron beam; an output ultrahigh frequency circuitry (7), operating at the modulation signal frequency and driven by the aforesaid modulated current.
Patent CA-2030575-C (CA)
Title: Brush mower
Inventor: BROWN JOHN C
IPC: A01B33/14
Filed: 1990-11-23
Granted: 1995-03-28
Abstract: A brush mower useful, for example, for clearing under power lines comprises a carrier platform or tractor,  an  articulating  rotating  crane  and  an auxiliary hydraulic power unit carried by the carrier platform and a  brush mowing head carried by the articulating crane.     The mowing head comprises a casing adapted to be mounted to a crane for travel over ground  to be cleared, a motor carried by the casing, and a drum with a center shaft mounted for rotation in the casing and powered by the auxiliary hydraulic power unit and motor.  The axis of rotation of the drum in use is generally parallel to the ground.   The drum is a cylinder having a length at least twice its diameter and at least two hammer shafts running end to end parallel to the axis of rotation.  The hammer shafts are  in  balanced  relationship  one  to  another  to minimize rotational imbalance.  The drum has interior circular   reinforcing   plates   and   end  plates perpendicular to said axis of rotation and connected to the inner wall of the cylinder.  There is a series of spaced apart outward facing interior semi-circular plates about the hammer shafts affixed to the drum wall and to which of the reinforcing plates as are contiguous thereto.  The semi-circular plates define wells about the hammer shafts.     The drum is slotted at the wells, with the slots associated with one hammer shaft being offset along the axis of the cylinder from those of another hammer shaft.  Hammers are mounted on the hammer shafts for free rotation thereabout in each of the wells.  The hammers,  when  the  drum  is  rotating  for  mowing, protrude by centrifugal force beyond the slots and present a cutting edge to the brush being engaged. The drum is dynamically balanced for rotation at at least 1,000 rpm.
Patent CA-2030806-C (CA)
Title: Sterilizable non-lubricated rotary dental and medical instrument
Inventor: GONSER DONALD I
IPC: A61C1/18
Filed: 1990-04-30
Granted: 1996-02-13
Abstract: A handpiece [10] particularly suited for medical/dental applications in which a rotary tool [13] is used upon and in proximity with anatomical structures.          The handpiece [10] has an anti-friction bearing assembly [18, 19] which mounts the rotary tool [13].  At least the rolling elements [19c] of the bearing assembly [18, 19] are formed of ceramic material.  The instrument [10] may be sterilized repeatedly without requiring lubrication either in use or between sterilization cycles.
Patent CA-2032501-C (CA)
Title: Sprayable composition
Inventor: NACHTMAN THOMAS
IPC: E02D17/20
Filed: 1990-05-10
Granted: 2001-07-17
Abstract: A sprayable composition and a method of protecting material with the composition is disclosed. The composition com-prises a polymer such as hydroxyethyl cellulose, clay, and water to provide a cover layer which, after spraying, is tough, flexible and water-repellent. Other materials such as shredded paper and gypsum can be used in the cover layer. The composition is effec-tive as a cover layer over material such as soil, refuse at a dump site, or grain in a stockpile. '
Patent CA-2033706-C (CA)
Title: Apparatus and method for detecting and eliminating call looping in a node-by-node routing network
Inventor: HARSHAVARDHANA PARAMASIV
IPC: H04L12/56
Filed: 1991-01-07
Granted: 1994-12-13
Abstract: An apparatus and method for effectively managing a switched virtual circuit network by detecting and resolving call routing problems occurring in the routing pattern of the network is provided. Detecting the call routing problems is advantageously achieved by a first process contained in a network management center which has access to all nodes in the network and performs routing table verification for each node whenever there are changes in the routing tables caused by changes in the network, such as an addition of nodes, links and the like. Otherwise, call looping may occur during call set-up as a result of any undiscovered or uncorrected errors in one or more routing tables in the network. Detection of call loops is achieved by the first process through use of a plurality of processing modules that recognizes and excludes in their analysis of the network certain network components that can not be involved in call looping. Identified routing problems are resolved by a second process which provides alternative recommendations as to how best to modify the routing tables in the nodes of the network. A selected one of the alternative recommendations is coupled from the network management center to the nodes in the network for changing the routing tables located at the respective nodes.
Patent CA-2036894-C (CA)
Title: Vectors and compounds for expression of glycosylation mutants of human protein c
Inventor: GERLITZ BRUCE E
IPC: C07K14/00
Filed: 1991-02-22
Granted: 2002-01-15
Abstract: A method for the recombinant production of forms of human protein C with higher activity is described. These forms differ from native protein C in their increased amidolytic and functional activities and novel carbohydrate structures. DNA compounds, vectors, and transformants useful in the method are also dis-closed.
Patent CA-2038015-C (CA)
Title: Locking trailer coupling
Inventor: BLACKLAW WILLIAM
IPC: B60D1/04
Filed: 1991-03-12
Granted: 1996-02-06
Abstract: A trailer coupling which receives the annular eye of a drawbar over a rearwardly and upwardly-projecting pintle, has a latch which engages the pintle and overlies the drawbar to prevent the drawbar from becoming dislodged during use.  The latch is rotatable forwardly toward the body of the hitch, which is attached to the towing vehicle, to uncover the drawbar and permit its installation onto and removal from the pintle.  A pawl mounted on the body of the coupling engages a tang on the latch when the latch is in its latched position to prevent rotation of the latch to its unlatched position. Thus the latch cannot inadvertently open during use.  The pawl can be rotated away from the latch when it is desired to install or remove the drawbar.
Patent CA-2038467-C (CA)
Inventor: PETTIT DEAN A
IPC: E05C9/00
Filed: 1991-03-18
Granted: 1995-04-11
Abstract: A method for variably making tie bar guides us-able to guide tie bars within locking system housings hav-ing different inner dimensions, which tie bar guides have a body portion including four sides substantially aligned with an opening through the body portion for slidably re-ceiving a tie bar. A mold block defines an opening for the body portion of the guide and receives material in a sub-stantially flowable state.  A cylindrical channel is also provided in the mold block along one side of said body portion opening.  A semi-cylindrical pin is secured within the channel, which pin is pivoted to open a selected por-tion of the channel to the mold block opening and thereby extend the mold block opening and contiguous open channel to a selected outer dimension.  Further, at least one slot is provided along a second side of the body portion open-ing.   Prior to flowing material into the mold block,  a selected number of substantially uniform slats sufficient to block the slot at the selected outer dimension are in-serted into the slot.  Finally, material is flowed into the mold block opening for forming the selected tie bar guide, the material is allowed to harden into the shape of the selected tie bar guide, and the tie bar guide is removed from the mold block.
Patent CA-2038621-C (CA)
Title: Engine mounting assembly
Inventor: LAW THOMAS R
IPC: B64D27/26
Filed: 1991-03-19
Granted: 2003-05-27
Abstract: A vibration isolating mount for connecting spaced structures and limiting noise transmission between the connected structures, such as between an aircraft and a turbine engine. The isolator comprises a pair of arms which are interconnected at one location by a torque tube pivotally connected to the aircraft structure and which are interconnected at another location by a tie brace which is also connected to the aircraft structure by a vibration isolator pad. The engine is connected to the arms by a hanger. The mount accepts various engine loads and reactions while minimizing the transmission of engine noise into the cabin of the aircraft.
Patent CA-2044645-C (CA)
Inventor: KURTZ THOMAS D
IPC: E05B1/00
Filed: 1991-06-14
Granted: 1995-06-06
Abstract: A press-on type finger pull for application to the face of sliding panels.  The finger pull comprises a rigid body having a rear mounting surface and a front surface wider than the rear mounting surface and side surfaces that extend forwardly and outwardly from the rear mounting surface to form a narrow finger contact edge adjacent the front surface and a fingernail receiving recess rearwardly of the finger contact edge.  Abutment ribs extend trans-verse to each side surface and have a rear face generally coplanar with the mounting surface and an abutment face extending transverse of the plane of the mounting surface between the rear face and the finger contact edge.  A thin layer of pressure sensitive adhesive is provided on the rear mounting face for attaching the finger pull to a panel.
Patent CA-2051048-C (CA)
Title: Superconducting device having a reduced thickness of oxide superconducting layer and method for manufacturing the same
Inventor: NAKAMURA TAKAO
IPC: H01L39/14
Filed: 1991-09-10
Granted: 1996-07-02
Abstract: A superconducting device comprises first and second oxide superconducting regions of a relatively thick thickness formed directly on a principal surface of a substrate separately from each other, and a third oxide superconducting region of an extremely thin thickness formed directly on the principal surface of the substrate so as to bridge the first and second oxide superconducting regions. A barrier layer and a diffusion source layer is formed on the third oxide superconducting region, and an isolation region is formed to cover an upper portion or both side surfaces of the diffusion source layer. The first, second and third oxide superconducting regions and the isolation region are formed of the same oxide superconductor material, and the isolation region is diffused with a material of the diffusion source layer, so that the isolation region does not show superconductivity. Therefore, a superconducting current can flow between the first and second oxide superconducting regions through only the third oxide superconducting region.     For formation of the superconducting device, a first oxide superconductor thin film having a very thin thickness is formed on the principal surface of the substrate, and a barrier layer and a diffusion source layer are formed on a portion of the first oxide superconductor thin film. A second oxide superconductor thin film is grown on an exposed surface of the first oxide superconductor thin film until the two layers are embedded in the second oxide superconductor thin film, so that a material of the diffusion source layer is diffused into the second oxide superconductor thin film on an upper portion or both side surfaces of the diffusion source layer.
Patent CA-2055556-C (CA)
Title: Susceptor with conductive border for heating foods in a microwave oven
Inventor: LEVIN LIZA
IPC: B65D81/34
Filed: 1991-11-14
Granted: 1996-04-09
Abstract: An apparatus to provide more uniform heating of a food product in a microwave oven is disclosed.  The invention employs a susceptor in combination with a conductive sheet forming a border around the edge of the susceptor and having an opening in the center exposing the susceptor.
Patent CA-2055704-C (CA)
Inventor: CHINO TAKASHI
IPC: A63B23/04
Filed: 1991-11-15
Granted: 1996-01-02
Abstract: A step-type training machine in which the exercisor trains using a predetermined load while detecting the pulse of the exercisor, and in accordance with data (e.g.  the age, sex and weight) inputted before the training and various data (e.g. the exercisor's pulse) during the training, the step load is varied and controlled during the training so as to impart the optimum exercise load to the exercisor.  The machine includes a frame; a plate for mounting various parts at a lower portion of the frame; a pair of crankarms each pivotally mounted by a pivot shaft on the plate and having a step member mounted on its one end movable up and down through a predetermined angle; an eddy current load device rotated by the swinging movement of the pair of crankarms; an input device for inputting individual data of the exercisor; a mechanism for measuring the pulse value of the exercisor; a detector for detecting the rotation frequency of the load device; a processor for extracting a control signal; and a display for displaying predetermined date extracted by the processing means.
Patent CA-2056300-C (CA)
Title: Sliding roof for an automobile
Inventor: BECKER THOMAS
IPC: B60J7/22
Filed: 1991-11-27
Granted: 1995-12-19
Abstract: In a  sliding roof  for  automobiles,  comprising  a  non-slidable, front wind deflector, pivotal at its front edge in a roof opening, and a rear sliding lid, slidably guided in the roof opening, the roof opening is filled by the mutually adjoining surfaces of wind deflector and sliding lid when the roof is closed.  For creating a ventilation gap of high effectiveness between the rear edge of the wind deflector  and  the  front  edge  of  the  sliding  lid  in conjunction  with  an  aerodynamically  favourable  small pivoting out angle of the wind deflector, it is provided that the sliding lid, starting from its closed position, is pivotally journalled about a pivot axis provided in the vicinity of its rear edge, in the sense of lowering its front edge.  For the opening displacement, the sliding lid is also lowered at its rear edge, with the result that, with low overall depth of the roof construction, the lid is displaceable approximately in a parallel orientation to the roof surface beneath a rear roof surface.            A threaded cable drive assembly can be used to provide the actuating movements both of the wind deflector and of the sliding lid.
Patent CA-2058326-C (CA)
Title: Process for preparing fluid suspensions of polysaccharide mixtures
Inventor: YOUNG TENG-SHAU
IPC: C09D101/28
Filed: 1991-12-31
Granted: 2003-12-16
Abstract: A nonionic cellulose ether such as hydroxyalkylcellulose, alkylcellulose or an alkylhydroxyalkylcellulose hydrophobically modified with a C4 to C24 alkyl or an arylalkyl group is suspended by a low molecular weight polysaccharide and below 10% by weight salt to provide a fluidized polymer~suspension. the process for manufacture involves preparing an aqueous polysaccharide solution and adding a nonionic cellulose ether while stirring.      Anionic, nonionic and cationic suspending polymers such as CMC, CM Guar, HEC and cationic starch may be used. Sodium carbonate is a preferred salt.
Patent CA-2062319-C (CA)
Title: Synchronous motor with permanent magnets
Inventor: IMAI NOBUYUKI
IPC: H02P21/00
Filed: 1992-03-05
Granted: 2001-01-02
Abstract: In a motor with permanent magnets and a motor system, the value .alpha. produced by dividing, by the induced voltage constant ke, the product of the inductance Lm of the motor itself or the inductance Ls of the motor system in the d-q coordinate system is selected to meet a predetermined condition. The range of rotational speeds in which the motor can be operated while maintaining a predetermined output under field weakening control can be widened. If a condition is established to determine a ratio by which the rated rotational speed under normal operating conditions is multiplied into a rotational speed under field weakening control, then conditions for a motor or a motor system that can be used can be determined.
Patent CA-2064487-C (CA)
Title: Processing interactions among telecommunications call features
Inventor: EPLEY ROBERT VERNE
IPC: H04Q3/00
Filed: 1992-03-31
Granted: 1997-01-07
Abstract: This invention relates to arrangements for controlling processing of telephone calls from feature processors. Feature processors are data bases, usually shared among a plurality of switching systems, and usually comprising data for customers served by these switching systems, for altering the processing of telephone calls from and to these customers in accordance with that data. In order to perform this modification, data messages are exchanged between the switching systems and the feature processor. In a departure from the prior art, these datamessages include functional indicators, i.e., indicators of basic characteristics of a call, each of which may be associated with many features and which may influencethe execution of other features, wherein the execution of at least some of the features of the two groups can be influenced by the feature processor. Advantageously, the use of functional indicators helps to reduce the amount of data to be transmitted between the switching systems and feature processor.