baber/WOPTO huggingface dataset:
Patent CA-2117674-A1 (CA)
Title: Seat unit
Inventor: HOOKER JOHN A
IPC: A61G7/10
Filed: 1994-09-09
Abstract: A seat unit includes a frame structure and a seat.  A linkage assembly interconnects the frame structure and the seat for displacement of the seat relative to the frame structure between a lowered sitting position and a raised position to provide assistance for the person using the seat unit to stand up therefrom. The linkage assembly causes the rearward part of the seat to be raised by a greater distance than the front part so that the seat also tilts forwardly. First and second spring means urge the seat towards its raised position, the spring means being operable in combination to produce an overall spring force urging the seat towards its raised position with a spring force value which is of a desired magnitude in each part of the movement towards the raised position.
Patent CA-2119162-A1 (CA)
Title: Modified .alpha.-olefin polymer having tertiary carbon in side chain andstretched film produced therefrom
Inventor: KAN KOJIRO
IPC: C08F8/00
Filed: 1994-03-16
Abstract: Abstract of the Disclosure:          A modified .alpha.-olefin polymer whose side chain has tertiary carbon, obtained by melt-reacting 100 parts by weight of (A) an .alpha.-olefin polymer whose side chain has tertiary carbon with (B) 0.05 to 10 parts by weight of metal methacrylate or metal acrylate of the formula (1),   (1) wherein R is a hydrogen atom or a methyl group, M is a metal cation, X is an anion, m is an integer of at least 2, and n is an integer of at least 2, with a proviso of m?n; and a stretched film thereof.
Patent CA-2119840-A1 (CA)
Title: Optical sensor for the determination of cations
Inventor: ALDER ALEX
IPC: C07D219/08
Filed: 1994-03-24
Abstract: Optical sensor for the determination of cations Abstract Compounds of the formulae I and II                         (I),              (II), in which R1 and R3, and R4 and R6 are C1-C30alkyl or C1-C30alkyl-CO-, and R2 and R5 are H or C1-C30alkyl, with the proviso that the total number of carbon atoms in the alkyl groups is at least 12, and salts thereof with inorganic or organic acids are fluorophores of high basicity which can be used in membranes for the optical determination of cations in aqueous media, in particular potassium ions, through the measurement, in particular, of the concentration-dependent reduction in fluorescence.
Patent CA-2120033-A1 (CA)
Title: Improved Exhaust Treatment System
Inventor: PAAS NORBERT
IPC: F01N3/033
Filed: 1992-09-25
Abstract: An improved exhaust treatment apparatus includes a particulate filter assembly (18) connected to the exhaust system of a diesel engine (12) for removing the solid particulate soot matter entrained in the engine exhaust. The particulate filter assembly (18) includes a disposable low-temperature filter element (60) that can be readily replaced when it becomes clogged. Heat insulat-ed catalyst assemblies (26) located upstream of the particulate filter assembly (18) reduce the amounts of solid particulate matter and other gaseous pollutants in the engine exhaust. A self-cleaning exhaust gas heat exchanger (14) located between the catalyst assemblies (26) and the particulate filter cools the hot, catalyzed exhaust gases before they reach the low temperature filter ele-ment (60). The self-cleaning heat exchanger (14) also includes an intermittent water injection system (24) for periodically remov-ing soot accumulations from the heat exchanger (14).
Patent CA-2120372-A1 (CA)
Title: Piperidine-triazine compounds suitable for use as stabilisers for organic materials
Inventor: BORZATTA VALERIO
IPC: C07D401/14
Filed: 1994-03-31
Abstract: Novel piperidine-triazine compounds suitable for use as stabilisers for organic materials Abstract Novel piperidine-triazine compounds of the formula (Ia) and (Ib) suitable for use as light stabilisers, heat stabilisers and oxidation stabilisers for organic materials. The meanings of R1, R2. R3, G1, G2, L1, L2, m and n are defined in the text.               (Ia)   (Ib)
Patent CA-2123000-A1 (CA)
Title: Vapour absorbent compositions
Inventor: ATKINSON STEPHEN
IPC: F25B15/00
Filed: 1992-11-05
Abstract: An absorbent for use in absorption refrigeration systems, air conditioning systems, heat pumps or dehumidifiers comprising a solution of potassium formats. The absorbent is relatively non-toxic and relatively non-corrosive towards metals. The absorbent is generally water-based but may also comprise ammonia or methanol.  Additives such as corrosion inhibitors or other absorbent salts may be included.
Patent CA-2124824-A1 (CA)
Title: Operator carried power tool having a four-cycle engine
Inventor: EVERTS ROBERT G
IPC: A47F7/14
Filed: 1992-12-01
Abstract: A handheld powered tool (20) is provided which is intended to be carried by an operator during use. The power tool (20) has a frame (22), including a handle (24, 26) to be grasped by the operator, an implement (32) affixed to the frame (22) having a rotary input mem-ber (64) and a small four-cycle aluminum internal combustion engine (30) attached to the frame for driving the implement. A crankshaft (36) is journaled to the engine block for rotation about a crankshaft axis. A piston (38) reciprocates within the bore (34) and is connected to the crankshaft by a connecting rod (40) having oil splashes (60) formed thereon for intermittently engaging the oil within the enclosed oil reservoir (58) to splash lubricate the engine. The engine (30) is pro-vided with a cylinder head (42) assembly defining a compact combus-tion chamber (44) having a pair of overhead intake exhaust ports (46, 52) cooperating intake and exhaust valves (50, 56). A lightweight high powered engine (30) is thereby provided having relatively low HC and CO emissiions.
Patent CA-2126207-A1 (CA)
Title: Novel 3-Halo-5-Halomethyl-2-Oxazolidinones and Their Use as Microbicides
Inventor: DEL CORRAL LUIS F
IPC: A01N43/36
Filed: 1992-09-29
Abstract: Novel  3-halo-5-halomethyl-2-oxazolidinones  are  disclosed, having the formula (I)                           (I) The  invention  is  also  directed  to  a  process  for making 5-halomethyl-2-oxazolidinones utilizing an alkali cyanate and an epihalohydrin.  The substituted oxazolidinone of formula (I) are useful as microbicides and the invention is also directed to a method  of  using  the  new  compound  as  a microbicide  and  for controlling the growth of at least one microorganism in an aqueous system or on a surface.
Patent CA-2126634-A1 (CA)
Title: Panel hinge for a portable stage
Inventor: TOUTANT DANIEL
IPC: E04H3/28
Filed: 1994-06-23
Abstract: The hinge is provided for a portable stage used in outdoor or indoor events produced in front of audiences or the like and comprising a haulable chassis for overland transportation between events. The hinge comprises a rigid shaft extending between the chassis and the panel.  The presence of the rigid shaft improves the rigidity of the panel and helps preventing jamming thereof because of an important initial deflection at the center of the panel under gravity.
Patent CA-2127758-A1 (CA)
Title: Windscreen cleaning
Inventor: UMEDALY SIKUNDAR
IPC: B60S1/52
Filed: 1994-07-11
Abstract: Currently car wind shields (windscreens) are cleaned by liquid being sprayed on the wind shield.  The sprayed liquid and the dirt or other foreign material on the wind shield can impair vision until the wipers move across or up and down several times and in fact clean the wind shield.  This invention will eliminate this period of impaired vision.
Patent CA-2128541-A1 (CA)
Title: Acrylonitrile polymer compositions and articles and methods for their preparation
Inventor: FOUSER JOHN P
IPC: C08J3/20
Filed: 1993-01-21
Abstract: ABSTRACT OF THE DISCLOSURE       Process of mixing a fugitive plasticizer, e.g., ethylene carbonate, with moist particulate polyacrylonitrile then removing the water enabling adjustment of the melt viscosity for extrusion of the polyacrylonitrile into film, fiber, pellets and shaped articles.  Stretching and heating the extruded polyacrylonitrile film or fiber causes the fugitive plasticizer to exude and vaporize from the film or fiber, carrying with it any remaining acrylonitrile monomer.  The resulting film or fiber exhibits substantially increased molecular weight, thus enhancing the tensile strength and barrier properties of the polyacrylonitrile product.  The process also produces polyacrylonitrile foam products.  A novel cross-linking agent for polyacrylonitrile, divinyloxybutane, is disclosed.  Thermostabilizing agents for polyacrylonitrile, N-maleimides and stilbene derivatives, are also disclosed.
Patent CA-2132519-A1 (CA)
Title: Linear amplifier control
Inventor: RIPSTRAND KRISTER INGEMAR
IPC: H03F1/32
Filed: 1994-01-28
Abstract: A method and apparatus for controlling a feed-forward compensated power amplifier system is disclosed which uses a spread spectrum technique to cover a control signal or signals and injects a composite signal at a suitable point into the feed-forward amplifier system to reduce distortion. The amount of bandwidth spread is governed by the amount of processing gain needed in the remapping process and the needed time response of the system. Control signals after remapping of the spread spectrum at the output of the system are correlated in a match filter correlator and the result is used to control, in either polar or Cartesian coordinates, the injection, in anti-phase, of the extracted distortion into the feed-forward amplifier output.
Patent CA-2133064-A1 (CA)
Title: Soft absorbent tissue paper containing a biodegradable quaternized amine-ester softening compound and a permanent wet strength resin
Inventor: PHAN DEAN V
IPC: C07C219/06
Filed: 1993-03-29
Abstract: Tissue paper webs useful in the manufacture of soft, absorbent products such as paper towels, napkins, and facial tissues, and processes for making the webs. The tissue paper webs comprise papermaking fibers, a biodegradable quaternized amine-ester softening compound, a wetting agent, and a permanent wet strength resin. The process comprises a first step of forming an aqueous papermaking furnish from the above-mentioned components. The second and third steps in the basic process are the deposition of the papermaking furnish onto a foraminous surface such as a Fourdrinier wire and removal of the water from the deposited furnish. An alternate process involves the use of the furnish containing the aforementioned components in a papermaking process which will produce a pattern densified fibrous web having a relatively high bulk field of relatively low fiber density in a patterned array of spaced zones of relatively high fiber density.
Patent CA-2134032-A1 (CA)
Title: Retractable energy center with lighting
Inventor: BYRNE NORMAN R
IPC: A47B21/00
Filed: 1994-10-21
Abstract: A retractable communications terminal center (100) for providing conveniently located voice/data terminals (202) is adapted to be mounted in a work surface (104) such as a desk top or similar article of furniture. The communications terminal center (100) is manually operable and includes a stationary upper housing (128) received within a slot (122) formed in the work surface. In addition, a manually movable and slidable carriage (170) is utilized to mount the communication terminal modules (202). In response to manually exerted forces on the carriage (170), the carriage can be extended upward into an open position. Relatively small bosses (228) extend laterally from lateral sides of the carriage (170) and provide a means to support the carriage (170) in its extended position, with the bosses (228) resting on lips (236) in the housing (128). Still further, ledges (230) are integrally formed on the lateral sides of the carriage (170) near the bottom portions thereof, so as to prevent any further additional movement of the carriage (170) upwardly relative to the housing (128).
Patent CA-2134135-A1 (CA)
Title: Expiration collecting method and automatic expiration collector
Inventor: UEDA HIDEO
IPC: G01N1/24
Filed: 1994-10-24
Abstract: ABSTRACT OF THE DISCLOSURE    A syringe for collecting expiration is switched to be connected to by a three-way electromagnetic valve between an expiration blowing part and a measuring part, so that expiration blown from the expiration blowing part is collected in the syringe while replacing old expiration, and a switching valve is closed upon completion of exhalation so that end-tidal air is collected in the syringe.  Thereafter the expiration sample is introduced into the measuring part from the syringe so that a constant amount of the expiration sample is collected by the measuring part to be introduced into a column.
Patent CA-2136112-A1 (CA)
Inventor: KASSARDJIAN VASKEN
IPC: E04C5/16
Filed: 1994-11-17
Abstract: A protective cover for concrete reinforcement bars includes an elongated cylindrical collar for securing the protective cover to an exposed end of a concrete reinforcing bar, a cap which is perpendicularly attached to the collar by reinforcing ribs, and a metal seat arranged between the collar and the cap and having slots for permitting direct attachment of the reinforcing ribs from the collar to the cap.
Patent CA-2140860-A1 (CA)
Inventor: REICHERT HEIKO
IPC: B63B27/24
Filed: 1994-06-14
Abstract: The invention concerns the technical field of water craft, especially the corresponding equipment, and describes an arrangement and method for the emergency emptying of tankers in accident situations whereby openings in the side of the ship and hose connections are provided an such a way that coiled, double walled flexible hoses with handling ropes, hose drive devices with an independent energy source and an air bag device are disposed between the side of the ship and the tanks. Hatch covers that can be detached by explosive force after an accident are provided at these points.  After the side of the ship has been opened in this way, the hoses are set in motion towards the open sea in the manner of a torpedo, and their ends and the handling ropes are carried to the water surface by an air bag function, from where they are easy to take up and connect to tanks. All necessary commands are executed under remote wireless control. The cargo of the tanker is evacuated mainly by compressed air via the double walled hoses.
Patent CA-2142061-A1 (CA)
Inventor: BRAGLIA MARCO
IPC: C03B37/012
Filed: 1995-02-08
Abstract: Fluoride glass optical fibres are fabricated by minimizing the number of high-temperature operations.  A tube comprising an external layer of a first fluoride glass of composition suitable to form the cladding of the fibre and an internal layer of a second fluoride glass of composition suitable to form the core of the fibre is prepared by a conventional rotational casting technique. Then, the internal layer is thinned by means of chemical etching at ambient temperature until the attainment of a ratio between the volumes of the two layers that corresponds to the ratio between the core and cladding diameters required for a single mode fibre, and the resulting tube is drawn.
Patent CA-2144635-A1 (CA)
Inventor: SUNDHOLM GORAN
IPC: A62C/
Filed: 1993-09-14
Abstract: The object of the invention is to provide a new nozzle which in particular is suitable for use in such spray heads for fire fighting which operate with a high liquid pressure. Inside the orifice (13) of the nozzle is arranged a helical spring (20) in such a manner that the liquid is brought to flow along a helical path (23) between the loops of the spring, whereat the liquid is set into a strong whirling motion before leaving the orifice of the nozzle.
Patent CA-2145125-A1 (CA)
Title: Package unit with bulk packaging material and apparatus for producing same
Inventor: SPERNER FRANZ
IPC: B65B9/20
Filed: 1995-03-21
Abstract: A packing unit (20) is disclosed for filling cavities in packaging containers, boxes, etc. in order to hold items securely in place. It has a having a casing (21) consisting of a web of material (23) and formed in the manner of a wound tubular roll (22) and filled with free-running packing material (11) characterized in that the web of material takes the form of a web (23) of preferably biodegradable non-woven material which is impregnated substantially over its entire surface with a heat-sealable bonding agent. A device (31) for manufacturing the packing units (20) is also disclosed. It has a preferably vertically oriented hollow winding core (32) with a feed mechanism (33) for feeding the web of material. The mechanism is oriented at a given angle to the axis of the winding core (32). The device includes a drive mechanism (36) to withdraw the web of material (23) from the feed device (33) and for wrapping the web of material around the winding core (32). Also, a device (46) is provided for joining the overlapping longitudinal edges (24, 25) of the web of material (23) in the area where the first layer of the web of material is wrapped around the winding core. Furthermore a filling hopper (67) is arranged above the hollow winding core (32) to accept the free-running packing material (11). A sealing device (51, 52) and a cutting device (51, 62) are arranged below the winding coil (32). The drive device (36) for withdrawing the web of non-woven material (23) takes the form of a recirculatingly driven endless belt (37) arranged transverse to the axis of the winding coil (32) and at an angle corresponding substantially to the feed angle of the web of non-woven material, and running at a wrap-around angle of approximately 360° around the winding core (32) on top ofthe web of non-woven material (23).
Patent CA-2146998-A1 (CA)
Title: Novel plants and processes for obtaining them
Inventor: BIRD COLIN ROGER
IPC: A01H5/00
Filed: 1992-10-14
Abstract: Plants, particularly cereal plants, which have improved ability to synthesise starch at elevated or lowered temperatures and/or to synthesise starch with an altered fine structure are produced by inserting into the genome of the plant (i) a gene(s) en-coding a form of an enzyme of the starch or glycogen biosynthetic pathway, particularly soluble starch synthase and/or branch-ing enzyme and/or glycogen synthase, which display an activity which continues to increase over a temperature range over which the activity would normally be expected to decrease, and/or (ii) a gene(s) encoding sense and anti-sense constructs of enzymes of the starch biosynthetic pathway, particularly soluble starch synthase and/or branching enzyme and/or glycogen synthase, which alters the natural ratios of expression of the said enzymes or inserts enzymes with special structural characteristics which alter the natural branching pattern in starch.
Patent CA-2147973-A1 (CA)
Title: Switchable attenuation device
Inventor: TELGES BURKHARD
IPC: H04B3/20
Filed: 1993-10-12
Abstract: A description is given of a switchable attenuation device (ES1, ES2) for optionally attenuating digital signals, having a control means (MULT) for evaluating the signal values by means of an attenuation factor (At) determining the instantaneous attenuation value, and having a control means  (CM)  for step-by-step control of the change in attenuation value within a prescribed turn-on or turn-off time. According to the invention, the control means (CM) contains at least one digital filter (DF) which controls the changes (Al') in the attenuation value by filtering a turn-on or turn-off pulse (X). In addition, the use of such attenuation devices as an echo attenuation device in cordless telephones and telephones with the hands-free set is described.
Patent CA-2158134-A1 (CA)
Title: Supplemented tissue sealant
Inventor: NU EZ HERNAN A
IPC: A61K47/42
Filed: 1994-03-14
Abstract: This invention provides supplemented and unsupplemented tissue sealants (TSs), such as fibrin glue, as well as methods of their production and use. In one embodiment, this invention provides TSs that do not inhibit full thickness skin wound healing. This invention also provides growth factor(s)- and/or drug(s)- supplemented TSs and methods of their production and use. The particular drug(s) or growth factor(s) selected is a function of its use. In one embodiment, the TS is supplemented with a growth factor(s) and can be used to promote: wound healing, such as that of skin or bone; endothelialization of vascular protheses; the proliferation and/or differentiation of animal cells; and/or the directed migration of animal cells. Exemplified embodiments include fibrin glue that is supplemented with: fibroblast growth factor-1, -2 or -4; and/or bone morphogenetic proteins; and polytetrafluorethylene vascular grafts pressure perfused with fibrin glue containing HBGF-1. In another embodiment the supplemented TS is used to produce a localized delivery of a growth factor(s) and/or a drug(s). Exemplified include fibrin glue supplemented with solid 5-fluorouracil or free base tetracycline. In another embodiment, this invention provides TS supplemented or treated with a substance, such as free base tetracycline or ciprofloxacin HCl, wherein the longevity of the fibrin glue is increased.
Patent CA-2159208-A1 (CA)
Title: High strength conductive polymers
Inventor: HAUSSLEIN ROBERT W
IPC: D01F9/127
Filed: 1994-03-30
Abstract: A polymeric composition having improved toughness and conductivity comprising carbon fibrils, at least a portion of which are in the form of aggregates, wherein, as measured on an area basis, substantially all of the aggregates are less than about 35µm in diameter. A  polymeric composition having improved toughness and conductivity is prepared by combining carbon fibrils, at least a portion of which are in the form of aggregates, with a polymeric material, mixing the combination to distribute the fibrils in the polymeric material and applying shear to the combination to break down the aggregates until substantially all of the aggregates are less than about 35µm in diameter.
Patent CA-2161516-A1 (CA)
Title: Thin film pegless permanent orifice plate mandrel
Inventor: WOLFF JOHN W
IPC: C25D1/10
Filed: 1995-10-26
Abstract: A mandrel is used in the manufacture of an ink jet orifice plate.  The mandrel comprises a glass substrate and an etched Titanium-Tungsten layer having a thickness of approximately 2000.ANG. to 5000.ANG. residing on the substrate.  The mandrel is manufactured by depositing a 2000.ANG. to 5000.ANG. thick layer of Titanium-Tungsten on a substrate, and then depositing a photoresist layer on the Titanium-Tungsten layer in a spin coater.  The photoresist layer is cured, and a patterned photomask is positioned on the photoresist layer.  The photoresist layer is exposed to actinic radiation and then developed to produce a photomask pattern on the photoresist layer.  The next step is to plasma etch the Titanium-Tungsten layer with a Halogen containing gas to form an etched conducting film mold.  Finally, the remaining photoresist layer is stripped to complete construction of the mandrel, so the mandrel is reusable without any additional preparation.
Patent CA-2162470-A1 (CA)
Inventor: PREIS WALTER
IPC: A61K9/20
Filed: 1993-07-24
Abstract: The invention concerns tablets with improved bioavailability of the active substance dichloro-methylenediphosphonic acid or of a physiologically tolerated salt thereof and with a content of microcrystalline cellulose as a pharmaceutical auxiliary substance, pharmaceutical packs containing these tablets, the use of the active substance dichloromethylenediphosphonic acid together with microcrystalline cellulose for the production of a tablet with improved bioavailability and the process for producing the tablet.
Patent CA-2165378-A1 (CA)
Title: Purification of natural gas
Inventor: SHIRLEY ARTHUR
IPC: C10L3/10
Filed: 1995-12-15
Abstract: Natural gas liquids and water vapor are removed from natural gas by a series of steps. In one embodiment the natural gas liquids and water vapor are removed by passing the natural gas first through a bed of aluminum-deficient zeolite to remove the natural gas liquids, then through a bed of water-selectiveadsorbent. In another embodiment, a combination of an aluminum-deficient adsorbent and an absorption system are used to remove the natural gas liquids and water vapor from the natural gas.