baber/WOPTO huggingface dataset:
Patent CA-2013125-C (CA)
Title: Electric drum brake
Inventor: SHAW SCHUYLER S
IPC: F16D65/28
Filed: 1990-03-27
Granted: 1994-09-27
Abstract: ELECTRIC DRUM BRAKE          Abstract of the Disclosure An automotive vehicle drum brake is provided including a brake drum connected to said wheel.  A backing plate is connected to the vehicle and at least one brake shoe is connected with the backing plate and is pivotally mounted with respect thereto.  A non-rotative nut is mounted for linear motion with respect to the backing plate and is pivotally connected with respect to the brake shoe.  A power screw is threadably engaged with the nut.  The power screw is also mounted to the backing plate.  An electric motor is torsionally connected with the power screw to turn the same to actuate the brakes.
Patent CA-2017885-C (CA)
Title: 3-hydroxybutyrate polymer composition
Inventor: HERRING JOHN M
IPC: C08K3/22
Filed: 1990-05-30
Granted: 2000-11-21
Abstract: A polyhydroxyalkanoate composition in which organophosphonic or organophosphinic acids, esters and derivatives thereof together with oxides, hydroxides or carboxylic acid salts of Group I to V metals are included as nucleating agents. A process for the production of the composition is also claimed. The composition is particularly a 3-hydroxybutyrate polymer composition.
Patent CA-2018829-C (CA)
Title: Process for producing a high-stiffness polypropylene and a highly stereoregular polypropylene
Inventor: SAITO JUN
IPC: C08F110/06
Filed: 1990-06-12
Granted: 1996-06-11
Abstract: A process for producing a highly transparent and highly stiff polypropylene affording a superior molded product is provided, which process comprises using a catalyst obtained by combining 1 a titanium trichloride composition (III) obtained by reacting TiC?4 with an organoaluminum compound (A1) or a reaction product (I) of (A1) with an electron donor (B1) to obtain a solid product (II), followed by subjecting the product (II) to a multi-stage polymeriza-tion treatment with a linear olefin and a non-linear olefin, each once or more times used, and further reacting the resulting linear olefin-non-linear olefin block copolymer with an electron donor (B2) and an electron acceptor, 2 an organoaluminum compound (A2); and as a third component, 3 an aromatic carboxylic acid ester (E) or an organo-silicon compound (S) having a Si-O-C bond and/or a mercapto group.
Patent CA-2030893-C (CA)
Title: Shower diverter valve
Inventor: NIEMANN JAMES E
IPC: F16K11/085
Filed: 1990-11-26
Granted: 1994-08-30
Abstract: A  diverter  valve  assembly  having  a  machined  brass housing that seats a diverter valve that has a stem portion, inlet portion and outlet portion.   The outlet portion is tubular and has an arcuate sealing pad secured thereon by axial flanges and keys on the outlet section.  The sealing pad  is  flexible  and  the  tubular  outlet  portion  is resiliently  flexible  to  allow  an  interference  fit  in  a cylindrical bore in the brass housing.
Patent CA-2031452-C (CA)
Title: Block copolymers
Inventor: WILLIS CARL L
IPC: C10M145/14
Filed: 1990-12-04
Granted: 2002-07-30
Abstract: Novel, selectively hydrogenated block copolymers, which copolymers comprise at least one block of polymerized alkyl methacrylate and one block of polymerized conjugated alkadiene, provide improved dispersant properties and viscosity index improvement to hydrocarbon lubricating oils.
Patent CA-2034909-C (CA)
Title: Method of bonding silicone elastomer to a substrate
Inventor: PASCUCCI CARLO
IPC: C09D183/04
Filed: 1991-01-24
Granted: 2000-10-10
Abstract: A method of bonding a silicone elastomer to a substrate which comprises treating the surface of the substrate with a cleaning agent which is a polydiorganosiloxane, for example a polydimethylsiloxane, and thereafter applying to the treated surface a room temperature curing silicone elastomer-forming composition. The method finds particular application in the construction industry for the bonding of sealants to non-porous substrates such as aluminium.
Patent CA-2036196-C (CA)
Title: Method for the preparation of ethylene polymer compositions
Inventor: TSUTSUI TOSHIYUKI
IPC: C08F10/02
Filed: 1991-02-12
Granted: 1999-06-08
Abstract: In accordance with the present invention, there is provided a method for the preparation of an ethylene polymer composition having a density of 0.86-0.94 g/cm3 and an intrinsic viscosity [~] of 1-6 dl/g using an olefin polymerization catalyst composed of a transition metal compound containing a ligand having a cycloalkadienyl skeleton and an organoaluminium oxy-compound, and there is also provided a method for the preparation of an ethylene polymer composition having density of 0.87-0.93 g/cm3 and an intrinsic viscosity [~] of 0.5-6 dl/g.
Patent CA-2040064-C (CA)
Title: Barrier film with improved extensibility for cheese packaging
Inventor: TONEY GLORIA G
IPC: C08L23/16
Filed: 1991-04-08
Granted: 2000-06-13
Abstract: A film which is useful in the packaging of newly formed blocks of cheese and demonstrates flexibility, extensibility, and improved sealing strength comprises an ethylene vinyl acetate/very low density polyethylene sealing layer. In addition to barrier properties, flexibility and extensibility are, preferably, also provided by a core layer of ethylene vinyl alcohol copolymer containing at least 32% by weight of ethylene. A preferred structure comprises a core layer of ethylene vinyl alcohol copolymer, two intermediate layers each comprising a polyamide; outer blend layers of very low density polyethylene, ethylene vinyl acetate, and anti-blocking agent, and adhesive polymeric materials to adhere the outer blend layers to the respective intermediate polyamide layers.
Patent CA-2041572-C (CA)
Title: Dual band frequency reuse antenna
Inventor: SMITH TERRY M
IPC: H01P1/165
Filed: 1991-05-01
Granted: 1999-11-09
Abstract: A dual frequency band antenna (10) having frequency reuse capability. The antenna waveguide (12) includes a four port waveguide network which transmits and receives orthogonal, linearly polarized signals of each of two frequencies. A pyramidal horn (14) is engaged to the mouth of the waveguide, and a meanderline polarizes (16) is engaged to the aperture (17) of the horn (14) to convert the signals from linear polarizations to circular polarizations.
Patent CA-2041720-C (CA)
Title: Highway barrier transporter
Inventor: QUITTNER JOHN P
IPC: E01F15/10
Filed: 1991-05-02
Granted: 1996-06-18
Abstract: A transporter for a length of highway barriers includes a series of barrier transporting units, each having at least one pair of wheels posi-tioned to straddle a length of highway barriers, at least one engaging device configured to engage one of the barriers, and at least one lifting device coupled to the engaging device to lift the engaging device and the engaged barriers.  Articulating couplings inter-connect axially adjacent transporting units to form a train configured to straddle the length of highway barriers such as the train can be moved over a length of highway barriers to be transported.  Two tractors are connected to the train, one at each end of the train in line with the train to move the train.  This transporter can be used by driving it over a length of highway barriers, using the engaging and lifting devices to lift the barriers, and then driving the transporter and the engaged barriers to a new location. The barriers are then lowered and released and the transporter is driven away, leaving the highway barriers at the new location.
Patent CA-2045333-C (CA)
Title: Wall means
Inventor: EKHOLM ROLF
IPC: B01D29/37
Filed: 1991-06-25
Granted: 1997-04-01
Abstract: A wall means intended for apparatus for separation of a liquid-containing portion from a liquid-containing particle material which is fed through the apparatus in a predetermined direction (A).  The wall means comprises a plurality of bar profiles defining continuous slots between them to allow through the liquid-containing portion.  According to the invention each bar profile has on its inner side facing the liquid-containing particle material a ridge portion extending between the ends of the bar profile and being provided with two continuous guide surfaces which, as seen in a cross section of the rod profile, are inclined in relation to the drainage direction (B) of the liquid-containing portion through the adjacent slot.  Furthermore, the inclined guide surfaces in their longitudinal direction are disposed to coincide with the predetermined direction of feed (A) of the liquid-containing particle material in order to influence the liquid-containing particle material to maintain this direction of feed (A).
Patent CA-2052987-C (CA)
Inventor: JOHANSEN KNUT H
IPC: F16L55/00
Filed: 1991-10-08
Granted: 1995-11-07
Abstract: The present invention relates to a method for repairing and reinforcing equipment details and components subjected to abrational wear. A casing is affixed about the area of the component or equipment detail subjected to abrational wear and a wear resistant concrete material is cast into the spacing between the casing and the surface of the equipment detail or the component. A wear resistant ceramic plate is preferably affixed to the surface of the equipment detail or the component before the casing is put in place and the concrete is cast.
Patent CA-2053637-C (CA)
Title: Low fat snack
Inventor: LODGE RICHARD WORTHINGTON
IPC: A23L1/164
Filed: 1991-10-17
Granted: 1996-07-09
Abstract: A process for preparing low fat shaped snack products having a light, crispy, crunchy texture is disclosed.  A dough is formed from 50% to 80% flour, preferably potato flour, and water (20% to 50%), and formed into a sheet from which snack pieces are cut. The snack pieces are coated with an oil, constrained in a mold and cooked, preferably with hot air or superheated steam, to provide a snack having 10% to 20% fat and having a fried-like texture and flavor.
Patent CA-2054205-C (CA)
Title: Process for recovering valuable metals from spent catalysts
Inventor: HOWARD ROBERT A
IPC: C22B23/02
Filed: 1991-03-01
Granted: 1999-06-08
Abstract: A process for recovering heavy metals from spent catalysts on an alumina support material comprising calcining the catalyst feed material to remove impurities and smelting the calcined feed in an electric arc furnace, preferably with scrap iron. A reducing agent, such as natural gas, is injected into the furnace to reduce the heavy metals to their metallic states. The reduced metals form an alloy and separate from the alumina by gravity.
Patent CA-2058267-C (CA)
Title: System for combining high frequency signals and relevant combiner
Inventor: D ORO ENZO CAVALIERI
IPC: H01P7/06
Filed: 1991-12-20
Granted: 1996-04-30
Abstract: Numerous high frequency signals are combined in a system on cavity band-pass filters.  Each filter has a bottle shape so that adjacent filters may be fitted together into a compact system.  Bridges connect the adjacent filters.
Patent CA-2060293-C (CA)
Inventor: SCHRAGE HEINRICH
IPC: C08F8/30
Filed: 1992-01-29
Granted: 2003-06-10
Abstract: Copolymers containing nitrile groups based on ethylenic-ally unsaturated monomers are prepared by reacting the copolymers on which they are based with ammonia at temperatures of from 150 to 270°C and pressures from 30 to 350 bar in the presence of an aliphatic nitrile and/or dinitrile.
Patent CA-2064722-C (CA)
Title: Buccal composition containing s(+) flurbiprofen or ketoprofen
Inventor: WECHTER WILLIAM J
IPC: A61P1/02
Filed: 1990-08-16
Granted: 2001-05-08
Abstract: A composition for the treatment of disorders associated with periodontal disease affecting soft tissue and bone of the oral cavity, and a composition useful in the method. The method comprises applying to buccal membranes a therapeutically effective quantity of at least one S enantiomer, generally an S(+) enantiomer, of a nonsteroidal anti-inflammatory drug, such as S(+) flurbiprofen or S(+) ketoprofen. The composition is a formulation which is a toothpaste or which is a mouthwash.
Patent CA-2067436-C (CA)
Inventor: ZAGLOUL HATIM
IPC: G06F17/00
Filed: 1992-04-28
Granted: 1998-09-15
Abstract: A method  and  apparatus  for  estimating the  phase differential of a transmitted electromagnetic signal from  the  amplitude  envelope  of  the  signal.  The apparatus  includes a sampler,  phase estimator and demodulator.  The  phase  estimator  uses  a  Hilbert transform. An approximation of the Hilbert transform may also be used to estimate the phase differential with sign ambiguity. The method of determining the sign ambiguity and the approximation of the Hilbert transform may be applied to time domain or frequency domain signals. The phase differential is estimated by taking the differential of a function of the envelope, and   applying  the   Hilbert   transform  to   this differential. The resulting phase differential, after correction  for  sign  ambiguity  may  be  used  to demodulate the received signal.  Sign ambiguity is resolved by comparing the estimated phase with the ideal phase.
Patent CA-2074064-C (CA)
Inventor: GENISE THOMAS A
IPC: F16H61/02
Filed: 1992-07-16
Granted: 1999-05-25
Abstract: A reengagement control system/method (200) for a semi-automatic mechanical transmission system (104) of the type requiring manual synchronization of the transmission to enable automatic implementation of a selected shift into a target gear ratio is provided. The reengagement control will cause immediate engagement of an engageable ratio, based upon vehicle speed, if the transmission is shifted to neutral and is then unable to engage in the target gear for greater than a predetermined time (REF2) as vehicle acceleration (dOS/dt) exceeds an acceleration reference value (REF1).
Patent CA-2082568-C (CA)
Title: Amorphous (quinolin-2-ylmethoxy) indoles
Inventor: HUTCHINSON JOHN H
IPC: A61K31/47
Filed: 1992-11-10
Granted: 2002-02-19
Abstract: A form of 3-[N-(p-chlorobenzyl)-3-(t-butylthio)-5-(quinolin-2-ylmethoxy)indol-2-yl]-2,2-dimethylpropanoic acid sodium salt, obtained by freeze or spray drying, is more soluble in water than the crystalline form thereof. The compound is useful as an anti-asthmatic, anti-allergic, anti-inflam-matory, or cytoprotective agent. It is also useful in treating; diarrhea, hypertension, angina, platelet aggregation, cerebral spasm, premature labor, spontaneous abortion, dysmenorrhea, and migraine.
Patent CA-2094384-C (CA)
Title: Transmission device, especially for a motor vehicle
Inventor: ANTONOV ROUMEN
IPC: F16H3/54
Filed: 1991-08-22
Granted: 2002-07-02
Abstract: The crown wheel (2) of a planetary gear (5) is connected to the input shaft (7) while the planet carrier (4) is connected to the output shaft (12). The sun wheel (1) is locked by means of a free wheel (14) when the clutch (9) is released. The device then operates as a reduction gear. The sun wheel (1) rotates with the crown wheel (2) and the planet carrier (4) when the clutch (9) is engaged. The axial forces (FAP?, FAC?), sustained by the sun wheel (1) and the crown wheel (2) when in gear-reduction mode, and resulting from the helical tooth configuration, tend through the stop (17) to compress a spring (18) and release the clutch (9). When in direct drive and beyond a certain torque, the clutch (9) slips, thereby generating the above-mentioned axial forces which compress the spring and accelerate disengaging. The device operates as a reduction gear until the torque on the shaft (7) is reduced, thereby enabling the spring (18) to re-engage the clutch. For use on the input side of a gear box in order to automatically reduce speed ratios during acceleration, the gear box being itself preferably automatically controlled, especially under the effect of axial forces generated by other planetary gears.
Patent CA-2097198-C (CA)
Title: Method for treating drill cuttings during oil and gas drilling
Inventor: SIREVAG GUNNAR
IPC: B09B1/00
Filed: 1991-11-20
Granted: 2003-05-20
Abstract: The present invention relates to a method for treating drill cuttings during oil and gas drilling, in particular in connection with oil and gas wells below water. This invention aims at a secure and permanent deposition of drill cuttings without risking environmental pollution. This invention is based on the philosophy that there is made a dispersion or emulsion of drill cuttings in water, as the particles of drill cuttings, including all present contamination, are disintegrated to obtain particles being so small that they may be dispersed in a relatively small amount of water. As no particle has a size above a predetermined tiny value, this dispersion may be pumped into most existing sub-sea structures and are thus permanently disposed of. The method is based on a continuous crushing and cleaning process, preferably including several stages, and where the process comprises several feedback paths and circulating loops, resulting in the fact that portions of the treated material run through the process several times until the desired, stable dispersion has been reached.
Patent CA-2098440-C (CA)
Inventor: MATSUMOTO SHIGEKAZU
IPC: G06F11/10
Filed: 1993-06-15
Granted: 2000-05-16
Abstract: A main CPU in a data transmitting section applies a packet number recorded in a packet number memory to a block data when transmitting the latter, and increments and updates the packet number upon completion of the transmission. A sub-CPU in a data receiving section determines whether the packet number applied to the block data received is the updated number or not, in order to determine whether the data is a retransmission of previous data or a transmission of new data.      If the block data received is a re-transmission of previous data, the data received previously is discarded.      If the block data received is new data, the data received previously is processed.
Patent CA-2113685-C (CA)
Inventor: SCHUHMANN DETLEF ERICH
IPC: B29C48/08
Filed: 1994-01-18
Granted: 2004-04-13
Abstract: A coextruded, biaxially orientated film comprising a base layer, which comprises a polypropylene or a polypropylene mixture, and at least one top layer comprising olefinic polymers. The top layer comprises a combination of inorganic and/or organic particles and tertiary aliphatic amine of the formula I    in which R1 essentially is an at least partially unsaturated alkyl radical having at least 18 carbon atoms or an essentially completely saturated alkyl radical having 8 to 26 carbon atoms and R2 and R3 are identical or different and are R4-CH2OH, in which R4 is an essentially saturated C1-C6-alkyl radical.      The film is useful, for example, as a label or wrapping.
Patent CA-2119756-C (CA)
Title: Process for preparing benzo[b]naphtyridines
Inventor: DAUBIE CHRISTOPHE
IPC: C07D471/04
Filed: 1992-10-08
Granted: 2004-05-04
Abstract: Process for the preparation of benzo[b]naphthyridines of general formula: <IMAGE> in which R is a carboxyl, alkyloxycarbonyl, cyano, carbamoyl, alkylcarbamoyl, benzylcarbamoyl, hydroxyethylcarbamoyl or dialkylaminoethylcarbamoyl radical or a dialkylcarbamoyl radical in which the alkyl parts may optionally form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle optionally containing another heteroatom chosen from oxygen, sulphur or nitrogen and optionally substituted on the nitrogen by an alkyl radical, R' is H, alkyl, fluoroalkyl, carboxyalkyl, (3 to 6 C)cycloalkyl, fluorophenyl, difluorophenyl, alkyloxy or alkylamino, and Hal is halogen, and their salts, where such exist, characterised in that:   1) an amine of general formula: R'-NH-CH2-CH2-R'' in which R'' is alkyloxycarbonyl, cyano, carbamoyl, alkylcarbamoyl, benzylcarbamoyl, hydroxyethylcarbamoyl, dialkylaminoethylcarbamoyl or dialkylcarbamoyl in which the alkyl parts may optionally form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle optionally containing another hetero atom chosen from oxygen, sulphur or nitrogen and optionally substituted on the nitrogen by an alkyl radical, is condensed with a chlorofluoroquinoline of general formula: <IMAGE> in which R1 is an alkyl radical, the alkyl radicals mentioned above have 1 to 4 C and are straight or branched,   2) the fluoroquinoline of general formula: <IMAGE>  in which R1 is defined as above in 1), is cyclised, 3) the 1,2,3,4-tetrahydrobenzo[b][1,8]naphthyridine of general formula: <IMAGE> is oxidised and the ester obtained is then optionally converted to an acid and optionally converted to a salt.
Patent CA-2120591-C (CA)
Title: Catalyst for production of ethylene oxide and process for producing the catalyst
Inventor: IWAKURA TOMOATSU
IPC: C07D301/10
Filed: 1994-04-05
Granted: 1996-11-26
Abstract: A  catalyst  for  the  production  of  ethylene  oxide which contains silver, tungsten, cesium and, in some cases, an alkaline metal other than cesium, an alkaline-earth metal, a rare-earth metal, and/or metal selected from  Groups I B, II B, III B,  IV A,  IV B,  V A,  V B and VI A of the Periodic Table and tellurium.  The use of the catalyst of this invention provides high selectivity in the production of ethylene oxide  by  the vapor contact oxidation of ethylene.
Patent CA-2124947-C (CA)
Title: Process for the selective hydrogenation of y, -epoxyalkenes to expoxyal kanes
Inventor: FALLING STEPHEN NEAL
IPC: C07D303/00
Filed: 1991-12-17
Granted: 1998-01-27
Abstract: Disclosed is a novel process for the preparation of epoxyalkanes and epoxycycloalkanes which comprises hydrogenating .gamma.,.delta.-epoxyalkenes or .gamma.,.delta.-epoxycycloalkenes in the presence of a rhodium catalyst.  The process is especially useful for the preparation of 1,2-epoxybutane from 3,4-epoxy-1-butene.
Patent CA-2133282-C (CA)
Inventor: LANDERS ALLAN L
IPC: A61G7/053
Filed: 1994-09-29
Granted: 1998-08-25
Abstract: A device for assisting a disabled person to rise from a seat to a standing position and for assisting a disabled person to sit from a standing position is provided.  The device comprises a mat attached to floor rails which are attached to hand grips and forearm supports.   In one embodiment, the device has a unitary construction, and in another embodiment, the device has a modular construction.          The device is compatible for use with both wheelchairs and walkers.
Patent CA-2135038-C (CA)
Inventor: BISHOP BOB
IPC: B21F29/00
Filed: 1994-11-03
Granted: 2002-01-22
Abstract: The invention provides a method and apparatus for automatically welding and handling mash welded tailored blank composits.  Each completed blank consists of two or more sheets of equal or unequal thickness welded together along linear weld seams, as is conventional.  The novel method comprises the steps of:  transfering first an  second sheet component parts, from respective input stacks of said first and second parts, to an assembly table of a mash welding machine;  assembling the sheet components disposed in an overlapping lap joint configuration; welding the lap joint along a linear weld seam, thus defining a welded blank;  conveying the welded blank in a timed step manner from the welding machine to an output stacking machine via a magnetic stepping conveyor;  tranferring the blank from the conveyor to an output stack of completed blanks with a stacking machine.  The apparatus according to the invention comprises:  a mash welding machine having an assembly table including means for assembling the sheet components disposed in an overlapping lap joint configuration and means for welding the lap joint along a linear weld seam;  stacking machine means for stacking completed blanks into an output stack;  means for transferring first and second sheet component parts, from respective input stacks of said first and second parts, to said assembly table of the mash welding machine; and  magnetic conveyor means for conveying the welded blank in a timed step manner from the welding machine to said stacking machine means.