baber/WOPTO huggingface dataset:
Patent CA-2082053-C (CA)
Title: Thermal energy storage apparatus
Inventor: CARR PETER
IPC: B60H1/32
Filed: 1990-05-07
Granted: 2000-05-02
Abstract: A thermal energy storage apparatus is disclosed which is adapted for use in motor vehicles to provide immediate cooling, or for use in buildings to provide local area cooling or a reduction in peak energy demand.      The apparatus comprises a reservoir which is composed of a plurality of separate containers, each containing water and a gas capable of forming a gas hydrate with the water at a transition temperature above 32°F. Also, at least one movable member is positioned in each container, which serves to facilitate the formation of the gas hydrate at or below the transition temperature. In one specific embodiment, the reservoir is positioned in the circulating air duct in a motor vehicle, so as to permit immediate cooling air flow upon the entry of an occupant. In another embodiment, the reservoir is part of an air conditioning unit which is able to provide cooling in local areas of a building, and to transfer the cooling power load to off-peak hours. In still another embodiment, several reservoirs having different gas hydrates are mounted in series, which is useful when the transition temperature is close to the temperature provided by the the recharging system.
Patent CA-2083012-C (CA)
Title: Liquid dentrifices
Inventor: DAWSON PETER LEONARD
IPC: A61K8/25
Filed: 1992-11-16
Granted: 1996-12-17
Abstract: The invention relates to liquid dentifrices which contain particulate siliceous abrasive cleaning agents, stably suspended in a liquid medium with the aid of a polysaccharide gum as suspending agent.          By using a particulate siliceous abrasive cleaning agent with a specific surface area of between 50 and 900 m2 /g, and using a liquid medium which is free from polyol-type humectants, liquid dentifrices are obtained with satisfactory rheological properties.          Preferably the compositions have a compositional viscosity index of between 3 and 30, said index being defined as 20-S, wherein S = concentration in % of thickening silica, P   if present, in the liquid medium and P = concentration in % of polysaccharide gum in the liquid medium.
Patent CA-2084236-C (CA)
Title: Off-highway truck frame
Inventor: KUNZ JAMES FREDERICK
IPC: B62D21/18
Filed: 1992-12-01
Granted: 2004-05-25
Abstract: A truck frame (100) for use hauling heavy loads in a dump body (14) pivotally attached thereto utilizes a first beam (102) as a central spline for the truck (10). The first beam (102) is constructed by welding steel sheeting together around a plurality of support gussets (124). A pyramidal structure (102) connects this first beam (102) to a second beam (106). A pair of outriggers (110) extend from the second beam (106). The front suspension attaches the front wheels (16) of the truck (10) to the frame (100). The rear wheels (18) attach to the distal end of the first beam (102c) by the rear suspension (24).  A cab support structure (120) extends across the proximal end of the first beam (102a). The monobeam construction allows for the use of two engines (30) mounted on either side of the first beam (102). If two engines are used, a second pair of outriggers (130) are utilized for support.
Patent CA-2086633-C (CA)
Title: System for bottom feeding and discharging imbricated material to/from an intermediate stack
Inventor: LEU WILLY
IPC: B41F21/00
Filed: 1993-01-04
Granted: 1999-08-17
Abstract: There are proposed a method and an apparatus for delivering printing products to a further processing point. The apparatus comprises a first conveying device for feeding the printing products in an imbricated formation, in which each printing product rests on the following one, and a second conveying device for further transporting the fed printing products to a further processing point, which apparatus has a stacking point which is arranged in a conveying region of the first conveying device and at which an intermediate stack, charged from below, is formed from the fed printing products and supported on an adjustable rest, control device connected with the adjustable rest for setting an upper side of the intermediate stack essentially at a predetermined height by lowering or raising the adjustable rest in the event of a change of height of the intermediate stack, and a sucker arrangement which acts on an uppermost printing product of the intermediate stack for raising a respectively seized printing product from the intermediate stack and delivering the same into a conveying region of the second conveying device.
Patent CA-2088291-C (CA)
Title: Process for decomposing polysaccharides in alkaline aqueous systems
Inventor: MONDSHINE THOMAS C
IPC: C09K8/52
Filed: 1993-01-28
Granted: 1998-05-05
Abstract: Alkaline earth metal or transition metal peroxides are used as a delayed breaker in alkaline aqueous fluids containing a water soluble hydrophilic polysaccharide polymer hydrated therein. The peroxide is activated by increasing the temperature of the fluid. The invention is particularly useful for the delayed break of hydraulic fracturing fluids containing hydroxypropyl guar polymer.
Patent CA-2090395-C (CA)
Title: Indoor fire hydrant apparatus
Inventor: YOKOI SHIN
IPC: A62C37/44
Filed: 1993-02-25
Granted: 1995-12-12
Abstract: An indoor fire hydrant apparatus includes a fire hose having electrical conductors extending along its length and connected to a switch mounted near the nozzle end of the hose.  Closure of the switch causes energization of a solenoid-actuated valve which is connected between a source of water under pressure and the hose.          Closure of the switch also causes energization of a pump to build up the water pressure.  A single person may pull the hose from a rack, extend it toward a fire, and actuate the switch thereby causing water under pressure to be dispersed through the nozzle.          The electrical conductors may be embedded in a wall of the fire hose or mounted on an exterior surface of the hose.  The hose may be of the folding type or the type which maintains its generally circular shape.
Patent CA-2097228-C (CA)
Inventor: EAST DON GAYLOR
IPC: G11B15/675
Filed: 1993-05-28
Granted: 1998-11-24
Abstract: The invention is a tape cartridge having a solid metal mount plate   including   a   plurality   of   surfaces   thereon simultaenously machined to the same plane.   Tape reels and tape guides are affixed to the mount plate, thereby ensuring precise alignment to each other.  A portion of at least one of the  surfaces  is  exposed  to the  outside  of  the  tape cartridge by recesses in the tape cartridge cover.   Upon seating the tape  cartridge  in  a  tape drive,  guides  are inserted  into  the  recesses,   thereby  ensuring  precise alignment of tape wound upon the tape to a tape head in the tape drive.
Patent CA-2097819-C (CA)
Title: A printed and encoded mass distributable response piece and method of making the same
Inventor: SILVERSCHOTZ STANFORD B
IPC: B42D15/00
Filed: 1990-12-04
Granted: 2001-10-16
Abstract: A method of simultaneously encoding successive groups of printed paper sheets or mass distributable material wherein the sheets (20) are provided with unperceptable and virtually invisible common code pattern (30) by laser means (70) which is suppli-ed with a distinct series of coded pulse signals in synchronism with control pulses to produce a different optically-scannable coded hole pattern (30) on each group of printed sheets.
Patent CA-2102398-C (CA)
Inventor: CHAKRABORTY KUMARESH C
IPC: A23G3/34
Filed: 1992-10-01
Granted: 1996-08-20
Abstract: The starch jelly candy is made with a blend of two starch components, one being an acid converted, high amylose starch having a dry alkaline fluidity of 20 ml to 70 ml and the other being either a thin-boiled common or an oxidized starch. The starch jelly can made with the two starch components has excellent clarity and no tailings. The acid converted starch is made at a very low pH, high temperature and short reaction time.
Patent CA-2103903-C (CA)
Title: Abrasion resistant coatings for fertilizers
Inventor: HUDSON ALICE P
IPC: C05G3/00
Filed: 1992-02-12
Granted: 2002-08-13
Abstract: Mixtures of hydrocarbon waxes and hydrocarbon soluble polymers which have oxygen containing polar groups provide an abrasion resistant sealant coating for sulfur coated urea.
Patent CA-2105069-C (CA)
Inventor: HEEGER ALAN J
IPC: H01L33/00
Filed: 1992-02-14
Granted: 1999-02-02
Abstract: Visible light LEDs are produced having a layer of conjugated polymer which is cast directly from solution or formed as a gel-processed admixture with a carrier polymer. The LEDs can be formed so as to emit polarized light.
Patent CA-2110917-C (CA)
Title: Reagents and methods for the quantification of amitriptyline or nortriptyline in biological fluids
Inventor: ADAMCZYK MACIEJ
IPC: C07K16/00
Filed: 1992-07-29
Granted: 1999-01-12
Abstract: Immunoassay methods and reagents for the specific quantification of amitriptyline or nortriptyline in a test sample are disclosed employing antibodies prepared with amitriptyline or nortriptyline derivatives of formula (III), wherein for amitriptyline, R is CH3, and for nortriptyline, R is H. The present invention also describes the synthesis of unique fluorescein tracers of the structure of formula (IV) and formula (V), wherein for a specific amitriptyline immunoassay, W 1 is a heteroatom linked to the aromatic ring at the 2 or 3 position, and for a specific nortriptyline immunoassay, W 2 is two heteroatoms linked together and attached to the aromatic ring at the 2 or 3 position, and wherein Q is a detectable moiety, preferably fluorescein or a fluorescein derivative.
Patent CA-2117305-C (CA)
Title: Substituted imidazole derivatives and their preparation and use
Inventor: KARJALAINEN ARTO JOHANNES
IPC: C07D/
Filed: 1992-12-18
Granted: 2003-11-25
Abstract: This invention provides novel compounds of formula (I) wherein Y is -CH2- or -CO-; R1 is F, C1 or OH; R2 is H, F or C1; and R3 is H, CH3 or CH2CH3, excluding 4-(5-chloro-2,3-dihydro-1H-inden-2-yl)-1H-imidazole and 4-(4-chloro-2,3-di-hydro-1H-inden-2-yl)-1H-imidazole and their non-toxic acid addition salts and mixtures thereof. Processes for the prepara-tion of these compounds are described, as are novel pharmaceutical compositions comprising at least one of the compounds or their salts. The compounds and their non-toxic salts exhibit valuable pharmacological activity and are highly selective and long acting antagonists at a2-adrenoceptors. Their peroral bioavailability is good. The compounds are especially useful in the treatment of cognitive disorders.
Patent CA-2122175-C (CA)
Inventor: JOPSON ROBERT MEACHEM
IPC: G02F1/35
Filed: 1994-04-26
Granted: 1999-05-18
Abstract: The present invention provides an apparatus and method for performing polarization-insensitive four-photon mixing of optical signals.  The polarization-insensitive optical mixer receives an input optical signal and two substantially orthogonally polarized pump signals.  The input optical signal and the two substantially orthogonally polarized pump signals are combined in a beam combiner and then four-photon mixed in a first nonlinear mixing device to produce a number of mixing products. The two substantially orthogonally polarized pump signals may he generated in an orthogonal pump signal generator which includes a second nonlinear mixing device for four-photon mixing the first pump signal and a mixing signal to produce a second pump signal which is a phase conjugate of the first pump signal.  Certain of the mixing products represent phase conjugates of the input optical signal, and are therefore useful in compensating for chromatic distortion in optical fiber.
Patent CA-2122753-C (CA)
Inventor: HOW STEPHEN K
IPC: H03M7/36
Filed: 1994-05-03
Granted: 1998-12-15
Abstract: Des codes convolutionnels binaires discontinus sont utilisés dans un schéma de modulation à codage en treillis pour obtenir des rendements spectraux aussi élevés que ceux des codes multidimensionnels, au moyen d'un matériel simple. Un code convolutionnel binaire à débit de base de 1/2 comprend une discontinuité de débit n/k. La sortie du codeur à discontinuité est mise en correspondance avec une quadruple partition d'une constellation QAM bidimensionnelle à 2N points. La quadruple partition consiste en une double partition dans les dimensions I et Q. Les doubles partitions de chaque dimension sont utilisées pour transmettre la sortie à deux niveaux du codeur convolutionnel binaire à débit n/k. (N-2) bits « non codés » sont transmis par sélection de l'unique point de constellation d'un groupe de partition. Le code a un débit moyen de (N-2)+2n/k bits par symbole. L'invention s'applique également à des schémas de modulation d'amplitude à codage en treillis basés sur 2N niveaux d'amplitude possibles associés à une constellation unidimensionnelle.
Patent CA-2124352-C (CA)
Title: Isolateur et methode de fabrication
Inventor: ITOH HIROMU
IPC: H01B17/14
Filed: 1993-09-21
Granted: 1999-08-10
Abstract: L'invention concerne un isolateur solide à haute résistance et un procédé permettant de le fabriquer. Cet isolateur solide a pour particularité d'être réalisé en une porcelaine où la quantité de cristaux de cristobalite ne dépasse pas 10 % et de présenter une contrainte interne, dans le sens de compression d'un isolateur colonnaire, plus grande dans la partie interne que dans la partie externe de son diamètre. La différence entre ces deux contraintes correspond à Y = (1,76 x 10-6)X, où X représente le diamètre en mm de l'isolateur. Un procédé, qui permet de fabriquer cet isolateur solide, consiste à procéder à la trempe d'un isolateur fritté pour accroître la différence existant entre la contrainte de la partie interne de l'isolation et celle de sa partie externe.
Patent CA-2129111-C (CA)
Title: Combined heat and power apparatus
Inventor: SUTTON JEFFREY ALAN
IPC: F22B31/00
Filed: 1993-12-09
Granted: 2001-02-06
Abstract: A shell steam boiler (2) comprises a furnace tube (10) having an entrance (32) which contains a gas burner (68) and also receives the hot exhaust gases from a small gas turbine (34) giving an output, on a power take off shaft (58) from a power turbine (56), of 0.5 MW or loss which drives an electrical power generator (60). Hot heating gases from the gas turbine (34) and/or the burner (68) pass down the furnace tube (10) and then through a first group of pass tubes (16) and finally through a second group of pass tubes (22) to an enclosure (26) comprising a flue (30). A driven fan (72) in the enclosure (26) acts to draw the heating gases through the boiler and promotes a good flow of those gases.
Patent CA-2130136-C (CA)
Inventor: GAGLIARDI JOHN J
IPC: B24D11/00
Filed: 1994-08-15
Granted: 2006-03-14
Abstract: The invention provides an abrasive article having a surface having a machine direction axis and opposite side edges, each side edge being parallel to the machine direction axis and a plurality of parallel rows of abrasive composites in fixed position on the surface, each row being aligned at an angle with a side edge which is neither 0° nor 90°, and methods for making such an abrasive article. The abrasive article of this invention also can be used in any convenient form including an endless belt. The resulting abrasive article provides a high rate of cut, long belt life, and a relatively fine surface finish on the workpiece being abraded.
Patent CA-2131641-C (CA)
Title: Catheter needle having surface indication thereon and process for forming such catheter
Inventor: SLOANE THOMAS EDISON JR
IPC: A61M25/06
Filed: 1994-09-08
Granted: 2007-05-08
Abstract: A process is described in which a laser is used to ablate the end of a polymer catheter placed over a needle or cannula. The laser ablation process also provides a surface indication at the transition between the polymer catheter arid the surface of the needle or catheter. The surface indication may be a polishing by the removal of oxidized material or by a transition of the material for example in an alloy including chromium bringing the chromium to the surface through the laser process.
Patent CA-2133516-C (CA)
Inventor: BATHE DUNCAN P L
IPC: A61M16/20
Filed: 1994-10-03
Granted: 2001-12-18
Abstract: A nitric oxide delivery system that is useable with any of a variety of gas delivery systems that provide breathing gas to a patient. The system detects the flow of gas delivered from the gas delivery system at various times and calculates the flow of a stream of nitric oxide in a diluent gas from a gas control valve. The flow of gas from the gas delivery system and the flow established from the flow control valve create a mixture having the desired concentration of nitric oxide for the patient.   The system does not have to interrogate the particular gas delivery system being used but is an independent system that can be used with various flows, flow profiles and the like from gas delivery systems.
Patent CA-2135106-C (CA)
Inventor: ALDRED ERNIE
IPC: F23G5/44
Filed: 1994-11-04
Granted: 2003-07-01
Abstract: A feeding apparatus for feeding whole tires into a cement kiln comprising a feed opening in the shell of the kiln, a passageway including a sleeve extending within and outside the kiln, an arcuate sector valve device for closing the passageway and timed to open so as to allow the tires to fall into the kiln through the passageway. The sector valve having an outer perforated wall and an inner wall, the perforated wall allowing ambient air to circulate between the outer and inner wall to keep the outer wall cool for contact with the tires. A transfer device is provided for transferring the tires onto the feeding apparatus wherein the transfer device includes fingers while the feeding apparatus includes a fork receiving tray interdigitated with the fingers to pick up the tires as the kiln rotates.
Patent CA-2136597-C (CA)
Title: Hydrazine derivatives and uses thereof
Inventor: TAKAGI KAZUHIRO
IPC: C07C323/60
Filed: 1994-11-24
Granted: 2005-05-17
Abstract: The present invention relates to a hydrazine derivative represented by the general formula (I):      (wherein each of Ar1 and Ar2 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted heteroaryl group, or the like, R1 is an alkyl group or the like, and A is a divalent radical having -C=N-N- or -CH-NH-N- as a fundamental skeleton), which is a useful compound as an agricultural and horticultural insecticide.
Patent CA-2139936-C (CA)
Inventor: HORNE FRED W
IPC: B65H23/038
Filed: 1993-07-26
Granted: 1999-01-05
Abstract: An apparatus is disclosed for producing a band of generally rectangular cross section having at least two layers of material comprising means for advancing a first band along a predetermined linear path and means for guiding a second band into layered alignment with said first band including a roll (23, 32) around which said second band is partially wrapped prior to contacting said first band, the second band having an initial tangential contact position with said roll along a line on the surface thereof extending generally axially with respect to the roll, the roll being tiltable in a plane defined by the axis thereof and the initial tangential contact position of the second band, whereby the lateral take-off position of the second band may be controlled by tilting the roll so as to guide it into aligned juxtaposition with the first band to form a layered, substantially rectangular tow band.
Patent CA-2147935-C (CA)
Title: Seal structures
Inventor: HOLDER MARK CHARLES
IPC: F16J15/34
Filed: 1995-04-26
Granted: 1999-09-07
Abstract: A seal ring construction is provided wherein a seal ring which is formed from a material which is subject to distortion during operation.  One end of the ring and portions of the two adjacent sides of the ring which are adjacent the one end of the ring are received in a recess of a stiff shroud assembly.  An O-ring recess is formed in each of the sides of the shroud recess which coextend with the two adjacent sides of the ring.  Sealing O-rings are positioned in the O-ring re-cesses and means are formed in the recesses to urge the O-rings into engagement with the sides of the seal ring and into engagement with the inner surface of the shroud recess.  The urging means include an inclined surface in each O-ring recess which faces the innermost surface of the shroud recess.  In addition, means are provided to take up dimensional differenc-es in the shroud and O-ring components which occur in the manufacturing process.
Patent CA-2149252-C (CA)
Inventor: VELAZQUEZ ALBERTO
IPC: C08J5/18
Filed: 1995-05-12
Granted: 2001-10-16
Abstract: A polyolefin blown or slot cast monolayer or multilayer stretch film useful as a trayed overwrap e.g. for fresh red meat includes at least three layers in the multilayer embodiment each of which contains an ethylene alpha-olefin copolymer having a density below 0.915 g/cm3 and having a melting point of at least 90°C with at least one outer layer and preferably also the first outer layer or the core layer having a second ethylene alpha olefin copolymer having a melting point less than 80°C blended therein.
Patent CA-2151328-C (CA)
Title: Interactive control system for packaging control
Inventor: LEPPER JOHN MARK
IPC: B65B57/14
Filed: 1995-06-08
Granted: 2006-12-12
Abstract: An interactive control system for controlling the automatic packaging of products in a products, such as lens packages, in a product fabrication facility. The control system as a robot device for periodically transferring individual arrays of a first predetermined amount of discrete products from a first station to an intermediate conveyor where the individual arrays are conveyed to a second station. A controller for initiating a time stamp for each individual array transferred from the first station and determining elapsed time data for each individual array and for generating position status data indicating a good array or a bad array of defective products for each individual array as it is conveyed to the second station. The controller shifts the elapsed time data and positions status data for each individual array as it is conveyed on the intermediate conveyor for transfer to the second station.
Patent CA-2158498-C (CA)
Inventor: BLEICH LARRY LYNN
IPC: C08L101/00
Filed: 1995-09-18
Granted: 1999-04-13
Abstract: A fire retardant cable for use primarily as a riser cable in buildings has a plurality of groups of twisted pairs of conductors arranged in a "honeycomb" structure. Each conductor comprises a metallic conducting member encased in a single layer of a non-flame retardant polyolefin material such as high density polyethylene. The groups of conductors are surrounded by a jacket of flame retardant poly(vinyl chloride) material.
Patent CA-2160858-C (CA)
Inventor: WEN-CHIN LU
IPC: A61M5/178
Filed: 1995-10-18
Granted: 2002-03-26
Abstract: A  safety  syringe includes:  a hollow needle  assembly  (2) having a hollow needle portion (21) detachably coupled to a shank portion  (22) embedded in a sleeve portion (12) of a syringe  (1) and having a needle head portion (23) formed on a rear portion of the  shank portion (22),  and a plunger (31) slidably held in the syringe  (1)  and having a biasing socket (32)  recessed  in  the plunger  (31)  for engaging the needle head portion (23)  of  the needle  assembly  (2) for a coupling of the needle  assembly  (2) with  the plunger (31) for a retraction into the syringe (1)  for obliquely  biasing  the needle portion (21) for  preventing   re-protrusion  of  the  needle (2)  outwardly,  thereby  allowing  a variety  of needles of different sizes to be replaceably  mounted on  the  shank  portion  (22)  outside  the  syringe  (1)  for  a convenient mounting of the needle (2) on the syringe (1).