baber/WOPTO huggingface dataset:
Patent CA-2033245-C (CA)
Title: Kerfed hardwood floor system
Inventor: NIESE MICHAEL W
IPC: E04B5/00
Filed: 1990-12-27
Granted: 1998-12-29
Abstract: A hardwood floor system has upper and lower subfloors of wooden panels, a plurality of elongated floorboards disposed above the upper subfloor and a plurality of uniformly spaced compressible, deflectable pads supporting the lower subfloor above a base, with at least one kerfed surface in the group of surfaces including the floorboard bottom surface, the upper subfloor surfaces, and the lower subfloor surfaces.  In a free-floating embodiment of the invention, each of the pads includes a glide tip that is slidable with respect to the base.  This combination of kerfs and compressible, deflectable pads provides a hardwood floor system that substantially complies with the performance characteristics established by the Otto Graf Institut of West Germany for evaluating hardwood floor systems, but in a more economical manner than another embodiment of the invention described in the parent application.
Patent CA-2033417-C (CA)
Title: Friction lining for disk brakes, more particularly for road vehicles and rail vehicles
Inventor: VALENTIN WOLFGANG
IPC: B32B7/04
Filed: 1990-12-28
Granted: 1997-02-11
Abstract: The friction lining for disk brakes comprises a carrier plate (10) and a block (16) of a compressed friction material secu-red to the latter, wherein the carrier plate, on the side bea-ring the block of friction material, is provided with a sinter-fused mounting bed (12) for the block of friction material of individual shaped members (13) forming frictional and positive connections with the block of friction material, in which, prior to the block of friction material is pressed onto the carrier plate (10) with the mounting bed sinter-fused there-upon, a galvanically, thermally or in some other suitable way produced metallic coating (50) is applied to the carrier plate as a corrosion protection.
Patent CA-2038245-C (CA)
Title: Pharmaceutically useful micropellets
Inventor: GHEBRE-SELLASSIE ISAAC
IPC: A61K9/50
Filed: 1991-03-14
Granted: 2001-08-14
Abstract: A pharmaceutical preparation comprising drug micropellets wherein each pellet ranges in size from about 170 microns to 750 microns and wherein each micropellet is coated with a release control coating.
Patent CA-2042311-C (CA)
Title: Method of storing and editing data in a television system and apparatus therefor
Inventor: CHANG DONG HO
IPC: H04N5/445
Filed: 1991-05-10
Granted: 1995-06-06
Abstract: A TV system is disclosed which includes the functions of Teletext, comprising a TV set and a teletext receiving and processing section which permits the editing and storing of data received through an antenna.  The system determines whether a key interrupt indicates TV mode, teletext mode or data edit mode, and if it indicates TV mode or teletext mode, the associated function is executed according to a given process.  A specific program stored in a memory means is  executed if data edit and storing mode is selected, executing each of the programs for storing, fetching and editing the memo data on instruction.  Programs for storing memo data, indicating cursor and switching character mode are executed if a first switch from TV mode or teletext mode to memo mode is instructed.  The TV set is switched into TV mode on detecting a memo fetching key if the memo data edited and stored by the user is displayed on the TV screen.  Memo identification and memo data is stored in the memory means if the memo storing mode is selected.
Patent CA-2044957-C (CA)
Title: Non-destructive composite material saw blade
Inventor: BALES F WAYNE
IPC: B23D61/04
Filed: 1991-06-19
Granted: 1995-02-14
Abstract: A non-destructive saw blade for composite material is disclosed. The saw blade has a series of teeth which are formed with cutting elements which are spaced inwardly from an outer circumferential edge and have sides which extend outwardly from planar sides of the saw blade. The saw blade is designed to cut yieldable material without cutting the carrier medium which can be a conveyor belt or a caul. Cutting is achieved by pushing the blade into the yieldable material until a cutting element engages the material. Movement of the blade then causes the cutting ele-ment to cut the yieldable material until a full depth cut is accomplished. The conveyor belt or caul is not cut by the saw blade outer edge which acts like a smooth disk. The saw blade can include a wear strip positioned on the outer circumferential rim to lengthen the life of the saw blade and conveyor belt or caul.
Patent CA-2045045-C (CA)
Title: Process and catalyst for preparing organic carbonates
Inventor: DELLEDONNE DANIELE
IPC: C07C68/00
Filed: 1991-06-20
Granted: 2001-10-02
Abstract: Organic carbonates and cyclic organic carbonates are prepared by reacting an aliphatic or cycloaliphatic alcohol, or, respectively, an aliphatic diol, with carbon monoxide and oxygen, by operating in the presence of a complex catalyst of cobalt with organic ligands bearing one or more oxygen functional groups, as electron donors.
Patent CA-2047158-C (CA)
Title: Method and device for installing a cable in a cable duct
Inventor: GRIFFIOEN WILLEM
IPC: G02B6/44
Filed: 1991-07-16
Granted: 1994-11-01
Abstract: The invention relates to a method, a device and a method for installing a cable in a tubular cable duct. In the method, the foremost end (3) of the cable (1) in the duct (10) and subsequent portions of the cable are first accelerated in a short time with continuous supply of further portions of cable from a torsion-free store. Then, from the instant a certain speed v is reached, the cable is maintained at a tension such that, at said speed and tension,  centrifugal forces in bends and inwardly pulling components of tensioning forces in the cable compensate for one another at the position of said bends, the further portions of the cable being supplied at a supply speed such that the part of the cable already fed into the duct can continue to slide on the basis of its mass moment of inertia. The acceleration can be achieved by causing propelling forces to act on the cable upstream of the inlet end (10a) of the duct in conjunction with pulling forces which act at least on the foremost end (3) of the cable (1) in the duct. The magnitude of at least the propelling forces is controlled by adjusting to zero the net transverse force on the cable, in a bend (8; 51) in the cable located beyond the position where the propelling forces act upon the cable in the direction of movement of the cable. Advantages are that much higher installation speeds and/or greater  installation  lengths  in one go are possible.
Patent CA-2048092-C (CA)
Title: Whippable non-dairy cream, based on liquid oil
Inventor: JONES MALCOLM GLYN
IPC: A23L9/20
Filed: 1991-07-29
Granted: 1997-05-13
Abstract: The invention concerns with whippable non-dairy creams with fat levels of 15-60 wt%, wherein the fat consists for 25-85 wt% of a liquid oil and for the rest of a hard fat that possess excellent properties, like a whipping time less than 6 min. Also a production-process is described, which includes a tempering step to make the NDC whippable within 4 min.
Patent CA-2055421-C (CA)
Title: Trenchless pipeline replacement
Inventor: HANDFORD REGINALD G
IPC: E21B23/00
Filed: 1991-11-13
Granted: 1995-03-14
Abstract: A method of replacing an existing underground pipe (44) with a new pipe (48) comprises the steps of moving a pipe removing tool (70) along the existing pipe (44) to remove the existing pipe and dragging the new pipe (48) behind the tool (70) to replace the existing pipe while imparting vibratory motion to the tool (70) or continuously applying a dressing material ahead of the new pipe to act as lubricant or to fill in the annular space between the new pipe and the surrounding soil.  According to another embodiment, the method comprises the steps of pushing out the old pipe (126) in one direction by means of a pipe removing tool (110) connected to a hydraulic unit (10) through a stem and replacing the old pipe (126) by means of a new pipe (48) by dragging the new pipe along behind the stem moving in the opposite direction during a return run.  Pipe removing tools (70, 110) are further provided which are capable either of fracturing the old pipe or extracting the old pipe and having chambers (86) for feeding a lubricating or filter material or provided with a vibrator (105) therein.  A hydraulic unit (10) for driving the pipe removing tools is also provided which is associated with apparatus (40) for gripping and rotating the stem to effect assembly or disassembly of the stem from individual screw-threaded pipe sections (38).
Patent CA-2059468-C (CA)
Title: Thermostat providing electrical isolation therein between connected heating and cooling transformers
Inventor: BUTLER WILLIAM P
IPC: F24H9/20
Filed: 1992-01-16
Granted: 1993-11-30
Abstract: ABSTRACT OF THE DISCLOSURE      A low voltage space thermostat adaptable for controlling a heating-only apparatus or a heating and cooling apparatus.  The thermostat includes a DC power supply and a voltage step-up transformer having two primary windings and a secondary winding for supplying electrical power to the DC power supply when there is a demand for heating, cooling, or fan operation.  The thermostat also includes circuit means for supplying electrical power to the DC power supply when there is no demand for heating, cooling, or fan operation.  The thermostat further includes circuit means, responsive to the existence of electrical power at a particular one of its wiring terminals, for providing electrical isolation, from each other within the thermostat, of two transformers incorporated in a two-transformer heating and cooling apparatus.
Patent CA-2060165-C (CA)
Title: Conveyor belt cleaners
Inventor: GORDON JAMES R
IPC: B65G45/12
Filed: 1992-01-28
Granted: 1994-11-29
Abstract: Gordon 90946 CONVEYOR BELT CLEANERS      ABSTRACT OF THE DISCLOSURE           A conveyor belt cleaner comprises a metal support of length L1, including a metal guide of continuous or intermittent construction; the support extends in spaced relation across a conveyor belt of width W.  A blade (or blades) of total length L2 (W ? L1 ? L2), mounted on the support, is generally triangular in cross-section, having a short base wall with a reinforcement receiving groove and two longer, curved side walls, concave in the same direction, converging at a belt scraping edge.  The blade or blades are mounted, directly or indirectly, on the support guide by mounting elements that include metal reinforcements in the base wall grooves in each blade. Torsion bias means acting on the support urges the blade scraping edge (or edges) against the conveyor belt; primary and secondary belt cleaners and blade units are described.
Patent CA-2063739-C (CA)
Title: Method of activating n-methyl-e-pyrrolidone (nmp) and/or gamma-butyrolactone (blo) varnish and paint remover solvents
Inventor: NARAYANAN KOLAZI S
IPC: C11D7/32
Filed: 1991-09-16
Granted: 1996-11-26
Abstract: A method is provided herein which is particularly effective for removing or stripping varnish and paint from surfaces such as wood or metal which comprises activating NMP and/or BLO with about 1-30% by weight of an activator compound which is ethyl 3-ethoxypropionate (EEP).
Patent CA-2068641-C (CA)
Title: Process and device for changing winding rollers
Inventor: KUHNHOLD MICHAEL
IPC: B65H19/28
Filed: 1991-08-26
Granted: 2002-12-10
Abstract: In a procedure fox changing the winding rolls (3) in machines used to wind webs of material (4) in particular paper or cardboard, onto cores, it is known that double-sided adhesive strips (31, 34) can be applied to the web (4) in order to secure the start of the web on a new core and/or start the end of a web onto a full winding roll (3).        According to the present invention, the adhesive strips (31, 34) axe first applied to a transfer element (transfer roll 21) that has little adhesion and which can be moved against the web (4) and then the transfer element (transfer roll 21) is moved against the web (4) and the adhesive strips (31, 34) are transferred to this.
Patent CA-2069649-C (CA)
Title: Quality factor improvement for filter applications
Inventor: ZENNAMO JOSEPH A JR
IPC: H03H7/01
Filed: 1992-05-27
Granted: 2002-05-14
Abstract: A tuned filter having an improved Q is disclosed in which two or more inductors are placed in parallel to increase the net Q relative to a single inductor of the same net inductance and/or two or more capacitors are placed in series to increase the net Q relative to a single capacitor of the same net capacitance to improve the Q of a tuned filter.
Patent CA-2079384-C (CA)
Title: Connecteur biomedical implantable, et procede pour realiser une liaison electrique au moyen d'un tel connecteur
Inventor: CHINCHOLLE SYLVIE
IPC: A61N1/372
Filed: 1992-09-29
Granted: 1995-04-18
Abstract: ABRÉGÉ DESCRIPTIF Connecteur biomédical implantable, et procédé pour réaliser une liaison électrique au moyen d'un tel connecteur Ce connecteur comporte deux éléments homologues emboîtables (10, 20) formés chacun d'un corps isolant (12; 22) en matériau biocompatible auquel est fixé au moins un contact électrique, mâle ou femelle (11), venant en contact mécanique et électrique avec un contact homologue, respectivement femelle ou mâle (21), de l'élément opposé. Selon l'invention, ces éléments homologues s'emboîtent mécaniquement avec un ajustement assurant par lui seul à la fois la solidarisation mécanique des deux éléments du connecteur et l'étanchéité des contacts vis-à-vis du milieu extérieur. Éventuellement, les deux corps isolants emboîtés formant autour de chaque contact un volume intérieur résiduel (17,19), ce volume est occupé par un matériau étanche de remplissage introduit après emboîtement des deux éléments du connecteur. (Figure 2)
Patent CA-2085473-C (CA)
Title: Apparatus for feeding a drilling machine in extension rod drilling
Inventor: LAUNIEMI MARKKU
IPC: E21B19/08
Filed: 1991-06-11
Granted: 2002-01-29
Abstract: A feeding apparatus for a rock drilling machine (8). The feed-ing apparatus comprises a feeding cylinder (5) movable with respect to the feeding apparatus and a connecting cylinder (6) arranged around the feeding cylinder (5) movably in its longitudinal direction.     To add a new drill pipe to a drill string, the drilling machine (8) is displaced by means of the connecting cylinder (6) and during the drilling movement by means of the feeding cylinder (5).
Patent CA-2087694-C (CA)
Inventor: QUANTE J MICHAEL
IPC: C07D501/36
Filed: 1993-01-20
Granted: 2000-04-04
Abstract: Chromogenic and fluorogenic substrates for .beta.-lactamase, methods for synthesis thereof and methods for detecting .beta.-lactamase in a sample are provided. The substrates are substantially colorless or substantially nonfluorescent .beta.-lactam compounds which include an electronegative leaving group. The leaving group comprises a carbamate, carbonate, thiocarbamate or thiocarbonate linkage and a fluorescent moiety or a moiety capable of producing a visually detectable colored product. Upon cleavage of the lactam ring by .beta.-lactamase, the leaving group is liberated and fluorescence or a colored product is produced.
Patent CA-2087957-C (CA)
Title: Tissue bonding and sealing composition and method of using the same
Inventor: BASS LAWRENCE SAMUEL
IPC: A61B17/00
Filed: 1991-07-23
Granted: 2004-07-20
Abstract: Disclosed is a composition for bonding separated tissues together or for coating tissues or prosthetic materials including at least one natural or synthetic peptide and at least one support material which may be activated by energy and to methods of making and using the same.
Patent CA-2088563-C (CA)
Title: Electromagnetic lock
Inventor: CHEN MAVIS
IPC: E05B47/04
Filed: 1993-02-01
Granted: 1995-08-15
Abstract: An electromagnetic lock comprised of an electro-magnetic core is fastened inside a casing to hold a coil unit in the grooves thereon.   The casing is secured to a door frame or jamb and, an armature plate is connected to the door.  A control circuit connects a power supply to the coil unit causing it to be energized for locking up with the armature plate, or to disconnect the power supply from the coil unit permitting the electromagnetic core to unlock from the armature plate.
Patent CA-2090582-C (CA)
Title: Portable computer
Inventor: VILETTO GIACOMO
IPC: G06F1/16
Filed: 1993-02-26
Granted: 1999-02-02
Abstract: A Portable computer comprises a base unit on which a lid is hinged. The base unit houses an electronic unit which can assume various operational states and carries an input unit. A display screen is carried by the lid and is controlled by the electronic unit to display graphic symbols and alphanumeric characters. The lid can be moved from an open position, allowing access to the input unit and allowing the screen to be seen, to a closed position. A mode indicator is carried by the base unit and displays various characters and symbols indicating different operational states of the computer. A viewing zone provided in the lid enables the mode indicator to be seen when the lid is closed.          The base unit includes a housing to receive a battery pack with terminals fox connection to the power supply conductors. The battery pack contains rechargeable batteries.  A power supply control circuit is also connected to the conductors and this includes a recharging circuit.          When power is applied via an external socket to the base unit the control circuit and recharging circuit are activated. A sensor device is responsive to the presence of the battery pack to supply the recharging current to the rechargeable batteries. When non-rechargeable batteries are inserted in the housing no recharging current is supplied to them.
Patent CA-2093660-C (CA)
Title: Novel silicone-containing polymers and oxygen permeable hydrophilic contact lenses therefrom
Inventor: ALI MOHAMMED I
IPC: C08L33/04
Filed: 1991-10-10
Granted: 2005-06-07
Abstract: The present invention relates to novel copolymers and contact lenses made from these copolymers comprising preformed silicone-containing acrylic star polymers, graft copolymers and macro-monomers, preparation of these contact lenses and a therapeutic method for treating patients with visual impairment. Described is a composition comprising at least about 10 % by weight of a preformed silicone-containing acrylic copolymer and no more than about 90 % by weight of a matrix formed from the random polymerization of a mixture of monomers. The mixture of monomers comprises at least one hydrophilic monomer and optionally, monomers selected from the group consisting of silicone acrylates, esters of alpha, beta-unsaturated acids and crosslinking monomers. The preformed silicone-containing acrylic copolymer is preferably copolymerized throughout the matrix. The final compositions are hydrated to a final water content of at least about 10 % by weight.
Patent CA-2094048-C (CA)
Title: Blank firing attachment
Inventor: COMPTON DAVID W
IPC: F41A21/26
Filed: 1993-04-15
Granted: 2004-04-27
Abstract: The invention is a blank firing attachment for use on a gas operated automatic rifle or light machine gun. The device restricts the exit of gases from the rifle barrel when a blank cartridge is fired, thus retaining sufficient gas pressure in the barrel to actuate the rifle's automatic firing mechanism and permit blank cartridges to be fired automatically or semi-automatic.      The device has a body adapted to be attached to the muzzle compensator of a rifle and a stem having an axial cavity. The stem is adapted to seal against the inner bore of the compensator.
Patent CA-2097030-C (CA)
Inventor: SESHADRI CHETPAT VENKATASUBBAN
IPC: C12N1/12
Filed: 1993-05-26
Granted: 2001-10-30
Abstract: The invention relates to the production of dried algal biomass from spirulina, and consists in culture separate steps of growth.      The first step is carried out in a reactor having a nutrient medium and receiving photons in the range of 1500 to 200 lux. Once the required optical density is achieved, the culture is subjected to a second step of culture growth in the process of natural and in nutrient. The initial optical density is 0.1 to 0.5. Once the desired optical is achieved, the culture is harvested, filtered, washed and dried.
Patent CA-2103208-C (CA)
Inventor: TAYLOR JACK DRAPER
IPC: D04H1/42
Filed: 1993-11-16
Granted: 2004-03-16
Abstract: Disclosed is an elastic nonwoven web containing a coherent matrix of fibers formed from an extrudable blend composed of an elastomeric A-B-A-B tetrablock copolymer where A is a thermoplastic polymer block and where B is an isoprene monomer unit hydrogenated to substantially a polyethylene-propylene) monomer unit. The elastic nonwoven web adapted to have an elastic modulus of less than about 1.25 which is locally constant during elongation of the web up to about 250 percent. The elastic nonwoven web may also include at least one type of nonelastic fibers and/or particulate materials distributed within or on the matrix of elastomeric fibers. The elastic nonwoven web may be incorporated into a multilayer material and/or may be a component of a composite elastic material in which the elastic web is joined to a gatherable layer at spaced apart locations sa that the gatherable layer is gathered between the spaced-apart locations.
Patent CA-2103785-C (CA)
Inventor: MEI YONG
IPC: G10L19/08
Filed: 1992-02-20
Granted: 1997-04-22
Abstract: A novel spectral interpolation (500, 600) and efficient excitation codebook search method (700) developed for a Code-Ex-cited Linear Predictive (CELP) speech coder (100) is set forth.  The interpolation is performed on an impulse response of the spec-tral synthesis filter.  As the result of using this new set of interpolation parameters, the computations associated with an excitation codebook search in a CELP coder are considerably reduced.  Furthermore, a coder utilizing this new interpolation approach pro-vides noticeable improvement in speech quality coded at low bit-rates.
Patent CA-2109645-C (CA)
Title: Method and apparatus to reduce skin tissue
Inventor: ITO YOSHIHIRO
IPC: A61N1/32
Filed: 1993-11-22
Granted: 2000-10-31
Abstract: The present method is a method For reducing an oxidized skin tissue by applying negative high-voltage pulses to the oxidized skin tissue so that the oxidized skin tissue is reduced by an electron addition reaction. A high-voltage generating circuit which is incorporated in a main body generates negative high-voltage pulses. Those negative high-voltage pulses are applied to the skin through a contact element which is connected to the main body, so that the oxidized skin tissue is reduced by the electron addition reaction. Further, the present apparatus is an apparatus to reduce a skin tissue, comprising a high-voltage generating means to generate negative high-voltage pulses, and a contact element which is connected to the high-voltage generating means and applies negative high-voltage pulses generated by the high-voltage generating means to the skin when it is brought close to or in contact with a surface of the skin, whereby an oxidized skin tissue is reduced by the electron addition reaction.