baber/WOPTO huggingface dataset:
Patent CA-2048661-C (CA)
Inventor: HARPER CLARK N
IPC: B66F9/10
Filed: 1990-02-16
Granted: 1998-01-20
Abstract: A lift truck to load or unload articles in a warehouse. The problem with fork lifts is the difficulty in maneuvering the truck in narrow aisleways of the warehouse. The lift truck employs means to displace the fork lift vertically, laterally and for rotation to handle the load in narrow aisleways. The lift truck has a lifting mast (66, 70. 80) which is movable longitudinally of the truck chassis (44). A carriage support (90) is mounted for vertical movement on the mast (66, 70, 80). The carriage (90) carries an arm (108) which moves laterally of the support (90). Finely a fork (122) is supported by the arm (108) and moves in an angular rotation.
Patent CA-2051092-C (CA)
Title: Method and apparatus for cryopreparation, dry stabilization and rehydration of biological suspensions
Inventor: LIVESEY STEPHEN A
IPC: A61K35/18
Filed: 1991-09-10
Granted: 2002-07-23
Abstract: This invention relates to methods, apparatus and solutions for cryopreserving microscopic biological materials for biologically extended periods of time. The method comprises treating a suspension of biological material, in an appropriate buffer, with a cryoprotectant or combination of cryoprotectants which raises the glass transition temperature range of the sample. One or more dry protectants may be added to the cryosolution. The cryosolution is then nebulized and rapidly cooled with novel apparatus, dried by molecular distillation, stored and then rehydrated in a buffer prior to its use. The solutions comprise novel mixtures of cryoprotectants.
Patent CA-2053504-C (CA)
Title: Recovery of surfactant from papermaking process
Inventor: BHAT DINESH M
IPC: C02F11/12
Filed: 1991-10-16
Granted: 2000-04-18
Abstract: Surfactant is recovered from the foamed aqueous admixture recovered from a fibrous web forming process by draining surfactant-depleted liquid from the foamed aqueous admixture thereby forming a surfactant-enriched foam, separating the surfactant-depleted liquid from the surfactant-enriched foam and recycling surfactant from the surfactant-enriched foam to the fibrous web forming process in the form of a stream having a surfactant concentration exceeding that of the foamed aqueous admixture. The recycle stream may be obtained by removing air from the surfactant-enriched foam. Surfactant may also be recovered from the surfactant-depleted stream by aerating it to form a foam from which surfactant-lean liquid is drained. The process may be repeated on the surfactant-lean liquid until the surfactant content of the finally obtained lean liquid is sufficiently low to permit discharge to the environment.
Patent CA-2055864-C (CA)
Inventor: DERKSEN HOWARD W S
IPC: B66F11/04
Filed: 1991-11-19
Granted: 1995-07-25
Abstract: An aerial lift platform apparatus preferably mounted on a mobile vehicle which supports and transports the apparatus.          The apparatus base is mounted on the vehicle, a mast of the apparatus is mounted on the base-and houses a basically vertical mast hydraulic cylinder, the mast is also rotatable about the mast vertical axis by a second hydraulic cylinder.          Mounted on the mast is a boom whose distal end is connected to a platform adapted to carry a wheelchair of a handicapped person.  The boom's distal end is elevated by an extension of the mast hydraulic cylinder which has one end attached to the base and another end to the boom.  A levelling link is moveably located internally of the boom and has a proximal end mounted on the mast and a distal end connected to the platform.  The platform is connected to the boom and levelling link by a reversible hydraulic motor driven pivoted extension structure and a reversible hydraulic motor driven pivot hinge between the extension structure and the platform.  The hydraulic cylinders and reversible hydraulic motors are controlled by solenoid operated valves which are electrically controlled either by a remote or manual control system.
Patent CA-2060979-C (CA)
Inventor: SHIMODA KOUHEI
IPC: B28B3/00
Filed: 1992-02-11
Granted: 1996-08-20
Abstract: Disclosed is ceramic composite material comprising a ceramic as a matrix mainly composed of any one member selected from among Al2O3, ZrO2, SiO2, AlN, Si3N4, h-BN, TiB2, ZrB2, Al4C3, SiC, TiC, mullite and composites thereof and containing metallic reinforcement therein in amount of 50% by weight or less, based on the total weight of the ceramic and the metallic reinforcement; and a process for producing the ceramic composite material wherein sintering is conducted after molding is conducted with a doctor blade, or by extrusion, slip casting or press molding. The ceramic composite material has an improved toughness through the use of the metallic reinforcement.
Patent CA-2068336-C (CA)
Title: Computer and telephone apparatus with user friendly computer interface and enhanced integrity features
Inventor: WEISS LAWRENCE D
IPC: H04M1/247
Filed: 1990-11-08
Granted: 1996-07-16
Abstract: The present invention relates to a telephone configured as a programmable microcomputer (telephone-computer) which operates in most circumstances through a standard telephone 12-key keypad input.  The telephone-computer  includes  telephone  electronics  and  a microprocessor unit operated in conjunction with other computer elements,  including memory devices,  and a programmable gate array (PGA) chip and enhanced integrity features, and has the overall appearance of a telephone. The PGA has the capability of being reconfigured to accommodate various types of softwares which require different hardware configuration, but without actually reconfiguring the hardware.   The telephone-computer delivers data processing capabilities and services through an ordinary telephone instrument via conventional telephone lines with a network host computer which communicates with a vast panoply of service bureaus.  Specifically, operating software is downloaded to the telephone-computer by the network host computer to reconfigure the PGA to form at the microcomputer necessary to conform to the software format used by the service bureaus.
Patent CA-2074521-C (CA)
Inventor: STRECKER ERNST PETER
IPC: A61F2/95
Filed: 1991-11-21
Granted: 1998-06-09
Abstract: Le dispositif comprend une prothèse, conçue comme un corps creux, qui est comprimée par l'action de forces de rétablissement en une section transversale réduite (comparativement à sa forme déployée en usage) et est maintenue dans cette position au moyen d'un étui pouvant s'effilocher.  Une fois l'étui effiloché, la prothèse se déploie automatiquement pour prendre la forme de section transversale appropriée à sa position en usage.  L'étui, qui peut être un tissu crocheté, recouvre toute la prothèse et comporte au moins un fil continu et au moins une ligne s'effilochant.  La prothèse, qui est maintenue dans la position comprimée radialement par l'étui, peut avancer le long d'un fil guide ou être montée d'une manière axiale fixe à l'extrémité avant d'une sonde ou d'un cathéter.
Patent CA-2080684-C (CA)
Inventor: GAWRON-BURKE M CYNTHIA
IPC: A01N63/50
Filed: 1991-04-15
Granted: 2010-02-02
Abstract: Two purified and isolated cryI-type genes were obtained from a novel B.t. strain. One gene, designated cryIF, has a nucleotide base sequence coding for the amino acid sequence illustrated in Figure 1. The 134 kDa crystal protein, designated CryIF, produced by this gene is toxic to European corn borer larvae and other lepidopteran insects.  The second gene, designated cryIX, produces a crystal protein of about 81 kDa, designated CryIX, that is also toxic to lepidopteran insects.
Patent CA-2082553-C (CA)
Title: Power conversion system
Inventor: SEKI NAGATAKA
IPC: H02J3/01
Filed: 1992-11-10
Granted: 1998-12-08
Abstract: A power conversion system of this invention comprises line-commutated power converting means in which a line-commutated power conversion circuit that performs line-commutated commutation and a coupling diode are coupled to form a DC circuit and for converting DC power into AC power or AC power into DC power.  Further the system comprises self-commutated power converting means in which a self-commutated power conversion circuit coupled to the coupling diode in order to form a DC circuit and for reducing reactive power, or the reactive power and harmonics generated by the line-commutated converting means. Accordingly their respective strengths can be made use of and their mutual weaknesses can complement each other.
Patent CA-2083780-C (CA)
Title: Combination pressure and temperature limit control for a fuel-fired, forced draft heating appliance combustion product exhaust system
Inventor: HALL JACOB H
IPC: F23L17/00
Filed: 1992-11-25
Granted: 1996-01-09
Abstract: A fuel-fired, forced draft heating appliance includes a draft inducer fan having an inlet connected to a vent hood, an outlet connectable to a vent pipe, and an interior housing region in which a negative pressure is generated during normal appliance operation.          The vent hood receives hot combustion gases generated by the appliance, and has an inlet for receiving ambient dilution air that mixes with and cools the combustion gases entering the hood and subsequently  discharged  into  the  vent  pipe  by  the  fan.    A combination pressure and temperature limit control is used to sense the presence of an obstruction in either the vent pipe or the vent hood inlet and responsively shut down the appliance.  The control includes a vacuum switch external to the fan, a bimetallic disc-type temperature sensor disposed within the negative pressure fan region,  and  a  conduit  interconnecting  the  switch  and  the temperature sensor.  During normal appliance operation an ambient air flow is drawn into the fan housing sequentially through the vacuum  switch,  the  conduit  and  the  temperature  sensor.    An obstruction in the vent pipe sufficient to reduce this air flow below  a  predetermined  level  causes  the  vacuum  switch  to responsively  shut  down  the  appliance.    An  undesirably  high temperature  within  the fan,  arising  for  example  due  to  an obstruction in the vent hood inlet, causes the temperature sensor disc to block air flow through the conduit, thereby also causing the vacuum switch to responsively shut down the appliance.
Patent CA-2086955-C (CA)
Title: Direct steel-making process
Inventor: CAVANAGH PATRICK E
IPC: C21B11/02
Filed: 1993-01-08
Granted: 1998-11-03
Abstract: Steel  sheet  is formed  directly  from  iron  ore concentrate by reducing a bed of iron ore concentrate, particularly  high  purity  magnetized  magnetic  gamma hematite,  to  a  low  density  hot  cake  of  carburized metallic iron and then hot rolling the hot cake to a metallic  sheet  of  full  density  (meeting  market specification).
Patent CA-2090823-C (CA)
Title: Apparatus intended to be buried in ground beneath water
Inventor: CLARKE DEREK WILLIAM
IPC: F16L1/12
Filed: 1993-03-02
Granted: 1997-11-18
Abstract: Apparatus such as a cofferdam 1,  intended to be partially buried in ground beneath water comprises a hollow structural framework.   The framework includes chambers 12 which have inlets 29 via which pressurised water can be supplied to the chambers.  Each chamber 12 communicates with a plurality of nozzles 36 from which jets of the pressurised fluid issue to break up the ground below.  Each chamber 12 also communicates with a plurality of water operated pumps 25 via inlets 24.          The pumps 25 are operated by the pressurised water to draw or suck water-suspended solids from below through the pumps via the inlets 32 and discharged from the pumps via outlets 28.
Patent CA-2092351-C (CA)
Title: Preparation of high activity, high density activated carbon
Inventor: YAN ZHIQUAN QUENTIN
IPC: C01B31/12
Filed: 1993-03-24
Granted: 1998-10-06
Abstract: Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore volume. size distribution to optimize the carbon's mesoporosity. An agglomeration process is disclosed for producing the carbon.
Patent CA-2093980-C (CA)
Title: End closures for shirred casing sticks and method and apparatus for making them
Inventor: BEARDSLEY ROBERT ALAN
IPC: B65B9/15
Filed: 1993-04-14
Granted: 1996-01-16
Abstract: An end closure for a shirred casing stick is formed by compacting an inturned portion of the casing within the stick bore.  During compaction a portion of the end closure is formed by pressing directly against the stick bore while an opposite portion is formed by pressing against a member inserted between the inturned portion and the stick bore.  The member is then removed to provide a space between a portion of the end closure surface and the bore surface.
Patent CA-2098933-C (CA)
Title: Volume flow regulator for air conditioning and ventilation apparatus
Inventor: SADKOWSKI MANFRED
IPC: F24F13/14
Filed: 1993-06-22
Granted: 2003-04-08
Abstract: A volume flow controller for air conditioning and ven-tilation apparatus which has a pivotable flap in a flow duct whose pivot shaft has a lever arm and which is articulated to a spring.  To provide a mechanically self-actuating volume flow controller, in which the spring is matched to the control process by a simple adjustment, the spring is a leaf spring whose one end is connected with a lever and whose other end is so fastened on a cam disk that upon adjustment of the cam disk about a rotation point, the leaf spring is entrained by the cam disk and rolls on the curve thereof.  A device is provided for fixing the cam disk.
Patent CA-2098963-C (CA)
Inventor: TREGILLIS JOHN S
IPC: A61C7/00
Filed: 1993-06-22
Granted: 2004-12-28
Abstract: A dental appliance including a heat-cured methyl methacrylate and a heat-cured ethyl acrylate. The heat-cured methyl methacrylate covers the occlusal surface of the teeth, while the heat-cured ethyl acrylate covers the buccal side and lingual side of the teeth and may extend onto the tissue. The occlusal surface remains hard. The dental appliance can be a splint, such as for bruxism, temporomandibular disorders, or mandibular repositioning appliances.
Patent CA-2099351-C (CA)
Inventor: KHARE GYANESH P
IPC: C01G25/02
Filed: 1993-06-28
Granted: 1997-04-08
Abstract: Shaped zirconia particles are prepared by mixing zirconia powder with an aqueous colloidal zirconia solution or an aqueous acid solution so as to obtain a shapable mixture containing about 4-40 weight-% water, shaping this mixture, and heating the shaped particles at a temperature in excess of about 90°C.
Patent CA-2100176-C (CA)
Title: System and method for dynamic printer timeout
Inventor: DENNIS STEPHEN V
IPC: G06K15/00
Filed: 1993-07-09
Granted: 2000-07-04
Abstract: A resource oriented host computer-printer system is disclosed in which the host computer and printer share information and data processing duties. A system and method for analyzing the execution times for draw primitives allows the host computer to determine whether the printer will be able to render draw primitives in real-time. If the printer cannot render the draw primitives in real-time, the host computer may send the draw primitives to be pre-rendered by the printer. The rendering is accomplished in less than thirty seconds. The host computer can determine the execution times for the draw primitives and dynamically alter the timeout period accordingly. If the printer exceeds the determined execution time, the host computer generate a timeout error message. No false timeout error messages are generated by the host computer because the timeout period is related to the actual processing time required by the printer. If the printer is coupled to a network, the timeout period may be set to the maximum thirty second period because the host computer may not have continuous communication with the printer. The host computer will still not generate false timeout errors because the maximum timeout period is still related to the actual processing time required by the printer. The inventive system and method are applicable to any peripheral in which a timeout period is used.
Patent CA-2101293-C (CA)
Title: Articulating endoscopic surgical apparatus
Inventor: NICHOLAS DAVID A
IPC: H01L21/00
Filed: 1993-07-26
Granted: 2004-06-29
Abstract: A surgical instrument is provided for use in endoscopic or laparoseopic procedures. The instrument includes a handle portion, an endoscopic portion extending from the handle portion, an articulating section pivotably connected to a distal end portion of the endoscopic portion, and a retractor assembly operatively associated with the articulating section. Structure is provided for manipulating the articulating section relative to the longitudinal axis of the endoscopic portion within an angular degree of rotation. An injection port may also be provided to deliver fluids through the endoscopic portion to the operative site.
Patent CA-2102313-C (CA)
Inventor: BECK CARL R
IPC: C07B61/00
Filed: 1992-04-24
Granted: 1999-09-07
Abstract: A process for controlling the regeneration of boron trifluoride catalyst complexes in the production of carboxylic acids and other products using boron trifluoride hydrates as a catalyst. Catalyst strength is determined by measuring the electrical conductivity of the catalyst recovered from hydrolysis. If the conductivity is greater than a predetermined value, the hydrolysis water rate is reduced and if the conductivity is less than a predetermined value, the hydrolysis water rate is increased. Conductivity is determined by a toroidal conductivity sensor and a control valve responsive to operation of the conductivity sensor serves to increase or decrease the flow rate accordingly.
Patent CA-2105236-C (CA)
Title: Method for cutting a wafer hard to cut
Inventor: NAKAMURA TAKAO
IPC: H01L21/304
Filed: 1993-08-31
Granted: 1997-04-22
Abstract: A method for cutting a wafer hard to cut into sections comprising steps of scribing the wafer so as to form a groove along a cutting line, locally heating a portion of the wafer near the groove and breaking the wafer along the groove.
Patent CA-2106180-C (CA)
Title: Process for the preparation of foamed propylene polymer articles
Inventor: LESCA GIUSEPPE
IPC: C08J9/232
Filed: 1993-09-14
Granted: 1999-07-27
Abstract: Foamed propylene polymer articles are prepared by subjecting pre-foamed beads, that consist essentially of propylene polymers having a melt strength from 5 to 40 cN, to thermoforming by sintering.
Patent CA-2108425-C (CA)
Inventor: BAYLY DAVID HOSTETTER
IPC: E04B5/12
Filed: 1993-10-14
Granted: 1999-01-12
Abstract: An improved decking system is provided for an exterior deck extending from one side of a building. The exterior deck has a header around its periphery, a railing on the header and a plurality of joists spaced apart in parallel relationships between the header. The improvement consists of a plurality of plastic flooring members extending in slightly spaced apart parallel relationships transversely across the joists.
Patent CA-2109552-C (CA)
Inventor: DURST WILLIAM B
IPC: G07B17/00
Filed: 1993-11-19
Granted: 1999-01-05
Abstract: A thermal printing postage meter comprising a base supporting a registration wall, a print deck.  The registration wall supports a detachable mounted thermal ribbon cassette and a thermal print head.  The thermal print head is mounted to the registration wall to extend over the deck to define a print station.  A platen drive assembly is mounted to the base for biasing an envelope against the thermal print head and causing the envelope to traverse the thermal print head during a print cycle of the thermal meter under the influence of a drive motor responsive to a micro controller.  The micro controller has a plurality of switches mounted to the registration wall of the postage meter.  The cassette is comprised of a housing formed by a front and rear wall maintained in spaced apart relationship by a plurality of side walls.  The rear wall of the housing includes a slot having an outwardly extending pin slidably mounted in the slot. The switches are mounted within an opening in the registration such that mounting of the cassette housing to the registration wall cause the pin to contact one of the switches depending on the position location of the pin in the slot.  The micro controller is programmed to operate the print cycle speed at one of the speeds in response to which one of the switches actuated by the actuation means.
Patent CA-2113219-C (CA)
Inventor: WORMSBECHER RICHARD FRANKLIN
IPC: C10G47/20
Filed: 1994-01-11
Granted: 2002-11-12
Abstract: Catalytic cracking catalysts and catalyst additives which contain silica modified bayerite and/or eta alumina.
Patent CA-2117857-C (CA)
Inventor: KUSE KAZUKI
IPC: B29C45/18
Filed: 1994-10-11
Granted: 1997-07-08
Abstract: A vertical-type injection molding machine comprising a lower fixed mold half mounted on a machine base, an upper movable mold half situated upwardly of said lower fixed mold half in confronting relationship therewith, and a material reservoir for storing a cleaning material and a various kinds of molding materials individually.  The material reservoir has a switching means for switching one kind of molding material over another.  The injectin molding machine also comprises an injector having a nozzle, an injection cylinder, and a molding material supply unit connected to said switching means via a material supply pipe, means for opening and closing a tip of said nozzle during the switching of the molding materials, and a discharged material receiving device reciprocatingly movable between a position right under the nozzle tip and a position right above a material discharge portion on the side of said upper movable mold half and adapted to be inverted by 180°.
Patent CA-2118417-C (CA)
Inventor: GAUGER DEREK K
IPC: B60N2/06
Filed: 1993-04-27
Granted: 1999-08-31
Abstract: A strap (170) is coupled between the sliding upper track (52) of a power seat adjuster (10) and the lead screw (144) of a horizontal drive (34) to transmit forces acting on the upper track (52) which move the upper track in a forward direction to the lead screw (144) bypassing the horizontal drive gears (148, 152). The horizontal drive gears (148, 152) coupling the horizontal drive motor output shaft (40) to the lead screw (144) and the gear housing (144) surrounding the drive gears are formed of a plastic material. In one embodiment, the strap (170) has first and second ends (172, 174) with the first end (172) loosely surrounding the lead screw (144). The second end (174) of the strap (170) is coupled in a force transmitting path with the upper track (52). An intermediate portion (182) of the strap (170) between the first and second ends is formed in a predetermined contour to deform under tension toward a planar shape and is disposed bypassingly around the drive gears (148, 152).