baber/WOPTO huggingface dataset:
Patent CA-2084301-C (CA)
Title: Heparin derivatives and process for the preparation thereof
Inventor: MATTSSON CHRISTER
IPC: C08B37/10
Filed: 1992-04-14
Granted: 2005-10-25
Abstract: The invention relates to new heparin derivatives from bovine or porcine heparin which have a molecular weight equal to or larger than the standard heparin, show a sulfur content which is equal to or higher than that of the starting heparin or at least 13 % w/w, have an anticoagulant activity in the anti-PXa assay of less than 10 %  of the standard heparin it was made from, show a ratio of APTT activity over anti-FXa activity of 3-35; show a reduced prolongation of bleeding time compared to the standard heparin it was made from as measured in the rat tail after i.v. administration and show enhancement of the rate of development of coronary collaterals in dogs equal to or better than clinically used heparin.  The invention also relates to processes for preparation of the new bovine and porcine heparin derivatives. The use of this product for the manufacturing of a medicament for treatment of ischemic heart disease and related vascular disorders and for the enhancement of the rate of development of coronary collateral perfusion is disclosed.
Patent CA-2089291-C (CA)
Title: Deflection circuit having a controllable sawtooth generator
Inventor: KOBLITZ KARL RUDOLF
IPC: H04N3/223
Filed: 1993-02-11
Granted: 2002-04-16
Abstract: ABSTRACT     In a vertical sawtooth generator of a vertical deflection circuit, a first comparator generates an output signal when a retrace portion of a sawtooth signal is at a first magnitude to initiate a vertical trace portion of the sawtooth signal. An amplifier responsive to the sawtooth signal generates a feedback current at a time that occurs more than one-half of the length of vertical trace portion after vertical trace is initiated. The feedback current is coupled to a capacitor to develop a capacitor voltage. The capacitor voltage is applied via a voltage-to-current converter to an integrating capacitor to develop in the integrating capacitor the trace portion of the sawtooth signal.
Patent CA-2092504-C (CA)
Title: Aromatization and isomerization of hydrocarbons
Inventor: SHAMSHOUM EDWAR S
IPC: C07C5/27
Filed: 1993-03-25
Granted: 2005-08-30
Abstract: A process is provided for the conversion of normal paraffins to higher octane aromatic and isoparaffinic products. The hydrocarbon conversion catalyst is a platinum metal-loaded X zeolite having calcium incorporated into the cage structure thereof. The process of the present invention comprises contacting the hydrocarbon feed containing normal C5 to C12 paraffins with the Pt/CaX catalyst under conversion conditions sufficient to convert the normal paraffins to aromatic and isoparaffinic products.
Patent CA-2096164-C (CA)
Inventor: WOOD JOHN C
IPC: C23C30/00
Filed: 1993-05-13
Granted: 1998-08-18
Abstract: An alloy of 3 to 9 weight percent boron with the balance molybdenum for use as a thermal spray coating for articles intended to be exposed to molten zinc.
Patent CA-2098863-C (CA)
Inventor: CASSIN ALLEN E
IPC: E21B33/128
Filed: 1993-06-21
Granted: 1995-05-16
Abstract: A well-head (W) having a casing (C) through which a fluid flows.  Apparatus (10) for controlling the flow of fluid has an output shaft (14) insertable into a sleeve (18), sleeve (18) being insertable into the casing at its fluid outlet end (E).  The sleeve extends from a hub (12) which is placeable into the outlet end of the casing and extends down into the casing.          The output/draw shaft (14) extends up through the sleeve, and has a draw nut (34) and a shut-off valve (16).  The valve (16) allows fluid flow through the output/draw shaft during installation of the sleeve but shuts off flow thereafter.  The sleeve has a circular wall (22), defining a longitudinal bore (24) having an inner diameter (D1) which gradually increases from the upper to the lower end of the sleeve.  Circular wall (22) thus has a tapering thickness along the length of the sleeve.  The output/draw shaft (14) is inserted up through the sleeve and has a tapered external diameter corresponding to the internal taper of the sleeve.  The output/draw shaft is drawn upward inside the sleeve, by tightening the draw nut, thereby forcing the wall of the sleeve to expand outwardly and adhere to the inside of the casing.
Patent CA-2101577-C (CA)
Inventor: TAIPALE DALE L
IPC: E04H3/28
Filed: 1993-07-29
Granted: 2005-06-07
Abstract: A modular portable stage and floor system uses a small number of standardized modular components to construct a temporary or permanent platform that is easily adaptable to a wide variety of platform designs. The modular standardized components include a series of modular vertical and horizontal supports and a light- weight modular deck panel. The modular vertical and horizontal supports can be detachably coupled together in a slidably interlocked manner using a universal connector mechanism in to a support frame structure for supporting a plurality of modular deck panels. By using a small number of modular supports and a universal connector mechanism that is similar for all structural interconnections required to build the support frame structure, the modular portable stage and floor system is strong and stable, yet easily transported, assembled and disassembled.
Patent CA-2106450-C (CA)
Title: Dc motor stall-detection system
Inventor: SALAZAR EDILBERTO I
IPC: G05B19/4062
Filed: 1993-09-17
Granted: 1997-05-27
Abstract: A motor controller is programmed for detecting motor-stall condition of a dc-motor under the control of the motor control system.  The motor controller includes a programmable microcontroller in connected to a motor driver. The motor driver communicates with a motor.  The motor coupled to a position encoder which encoder is in communication with the microcontroller  The method comprises the steps of providing an average stall threshold value and providing the motor controller with a time counter for counting each time interval T to a maximum count of "N". The motor controller is programming to issue a motor command representing the position error between the desired motor position and the actual motor position for some time interval "T" for each time interval "T".  During each interval the motor command is compared to the average threshold value,  if the motor command is greater than the ASV then proceed to and the interval exceeds a presented time than a motor stall is state is declared.  If not the method is repeated for the next time interval.
Patent CA-2111383-C (CA)
Inventor: RENOE BRIAN W
IPC: B01J19/12
Filed: 1993-12-14
Granted: 2005-04-12
Abstract: A controlled process and suitable apparatus are described for controlled continuous microwave digestion of samples of materials to prepare them for subsequent analyses or other chemical operations. The material to be analyzed, in finely divided form and mixed with digesting liquid, which is usually a strong acid, is charged as a slug into a flowing liquid carrier stream, usually water, which stream, containing the slug, is passed in a tube through a zone in which the tube and contents are subjected to microwave radiation, to heat the digesting liquid and the material to be digested to promote the digestion. The process and apparatus are like those of U.S. patent 5,215,715, modified by inclusion of detecting and controlling steps and corresponding apparatus components to detect a condition of the flowing liquid without physically contacting it, as by determining the dielectric constant of contents of the tube, or a related property of such contents at one or more locations of the tube, usually outside the microwave zone, and controlling operations of the process and apparatus accordingly. Such controlled or controllable operations include charging of subsequent slugs to the system, feeding digested slugs or portions thereof to autosampler deans, aid backwashing of a filter, and in such operations the controlling means is preferably microprocessor or computer means that is activated by signals from the detection means and automatically operates appropriate valves, pumps and autosampling means also within the invention is a procedure for converting a manual process, such as that described in U.S. patent 5,215,715, to an automatic one.
Patent CA-2115196-C (CA)
Title: Semi-crystalline cycloolefin copolymer film
Inventor: BENNETT CYNTHIA
IPC: C08J5/18
Filed: 1994-02-08
Granted: 2004-11-30
Abstract: A film including semi-crystalline cycloolefin copolymers which have a content of catalyst residues of < 100 ppm and their use as capacitor films, reproduction films, film keyboards and film switches, substrates for liquid crystal displays and packaging films.
Patent CA-2118131-C (CA)
Title: Architecture de tampon a donnees visuelles
Inventor: LIPPINCOTT LOUIS A
IPC: G09G5/36
Filed: 1993-03-24
Granted: 1999-03-23
Abstract: Un dispositif servant à traiter des données visuelles est constitué par un premier moyen de mémoire servant à mémoriser un premier plan de bits de données visuelles dans un premier format. Un élément de contrôle graphique est couplé au premier moyen de mémoire par un bus de données et par l'intermédiaire d'un bus de mémoires. L'invention décrit également un moyen servant à recevoir un deuxième moyen de mémoire servant à mémoriser un deuxième plan de bits de données visuelles dans un deuxième format différent du premier format. Le moyen de réception est conçu pour coupler un deuxième moyen de mémoire à l'élément de contrôle graphique par un bus de données et par l'intermédiaire d'un bus de mémoires. L'invention comprend également des moyens servant à constituer un train de pixels fusionnés à partir des données visuelles mémorisées par le premier et par le deuxième moyen de mémorisation. Des moyens couplés à l'élément de contrôle graphique servent à afficher le train de pixels fusionnés. Dans un autre mode de réalisation, un dispositif servant à traiter des données visuelles est constitué par un premier moyen de mémoire servant à mémoriser un premier plan de bits de données visuelles dans un premier format. Un élément de contrôle graphique est couplé au premier moyen de mémoire par un bus de bonnées et par l'intermédiaire d'un bus de mémoires. Un deuxième moyen de mémoire couplé à l'élément de contrôle graphique par un bus de données et par l'intermédiaire d'un bus de mémoires sert à mémoriser un deuxième plan de bits de données visuelles dans un deuxième format différent du premier format. L'invention comprend également des moyens servant à constituer un train de pixels fusionnés à partir des données visuelles mémorisées par le premier et par le deuxième moyen de mémoire. Des moyens couplés à l'élément de contrôle graphique servent à afficher le train de pixels fusionnés.
Patent CA-2120665-C (CA)
Title: Personal date/time notary device
Inventor: FISCHER ADDISON M
IPC: H04K1/00
Filed: 1994-04-06
Granted: 1998-12-22
Abstract: A personal data/time notary device is embodied in a token device such as a "smart card".  The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip.  The I/O port may be coupled to a conventional smart card reading device which in turn is coupled to a PC, lap-top computer or the like.  A tamper resistant secret private key storage is embodied on the chip.  The private key storage is coupled to the processor which, in turn, is coupled to a permanent memory that stores the program executed by the processor. At least one clock is embodied on the card.  A second clock 14 and a random value generator 10 are also preferably coupled to the processor.  The device combines digital time notarization into a digital signature operation to ensure that a time stamp is always automatically present.  The user does not need to be involved in any additional decision making as to whether time stamping is necessary.
Patent CA-2123118-C (CA)
Inventor: MACKLES LEONARD
IPC: A61K9/06
Filed: 1992-09-08
Granted: 2001-03-27
Abstract: A substantially anhydrous composition suitable for topical application which contains 10-80 % by weight of an anhydrous base which is liquid or semi-solid at room temperature; and 5-50 % by weight of polyolefin microspherical particles having an average diameter of less than 25 microns, the amount of microspherical particles constituting at least 30 % by weight of the anhydrous base.
Patent CA-2129296-C (CA)
Inventor: DAVIDTS EMMANUEL
IPC: B65G15/32
Filed: 1994-08-02
Granted: 2001-05-08
Abstract: The invention relates to a scraper device for the return run (strand) of a conveyor belt, which comprises a block of elongate form (14), made from elastic material, bears on a support profile (16), the block of elongate form (14) having a central zone via which it is in contact with the support profile (16) and, on either side of this central zone, a zone in which the block of elongate form (14) is separate from the abovementioned support profile (16). <IMAGE>
Patent CA-2134593-C (CA)
Inventor: COX DAVID IAN
IPC: F16D23/06
Filed: 1994-10-28
Granted: 2001-01-30
Abstract: A pin-type synchronizer mechanism (86) with self-energizing ramps is configured to provide self-energizing forces for reducing an operator applied shift force (Fo) and/or shift time. The self-energizing forces are provided by self-energizing ramp surfaces (29e,29f,29g,29h) and (111a,111b,111c,111d) respectively, formed in external splines (29) of a shaft 28 and in internal teeth (111) extending radially inward from a shift flange (110). The ramp surfaces provide an additive axial force (F a) applied to friction rings (114,116) via shift flange blocker surfaces (110d,110e) reacting respectively against pin blocker surfaces (118c,118d). The shift flange carries improved pre-energizer and neutral position centering assemblies (120) including pre-energizer plungers (124) and neutral position plungers (126) respectively for axially retaining pins (118) and friction rings (114,116) in a neutral position relative to flange (110) and for neutral positioning flange (110) relative to recesses (128) in shaft (28).
Patent CA-2134766-C (CA)
Inventor: WEIDNER RICHARD
IPC: C08G77/18
Filed: 1993-05-13
Granted: 1997-12-30
Abstract: A process for producing organopolysiloxane resin is characterized by the following steps.  In a first step, a silane having the formula (I): R3SiOR1, and/or its hydrolysate, and a silane having the formula (II): Si(OR2)4, and/or its partial hydrolysate, in which R, R1 and R2 have the meaning given in the first claim, as well as if required other organosilicic compounds, are reacted with water in the presence of acid, and the resulting alcohol is at least partially distilled.  In a second step, the homogeneous reaction mass from the first step is reacted in the presence of bases and water-insoluble organic solvents, and the water and alcohols are removed by distillation.  In a third step, the homogeneous reaction mass from the second step is neutralized with an acid, the possibly remaining water and alcohol are removed by distillation and the precipitated salt resulting from the neutralization is removed. If required, the homogeneous reaction mass from the third step is freed in a fourth step from the water-insoluble organic solvent.
Patent CA-2134844-C (CA)
Title: New extractive process for the recovery of naturally occurring macrolides
Inventor: GLETSOS CONSTANTINE
IPC: B01D11/04
Filed: 1994-11-01
Granted: 2007-10-16
Abstract: This invention relates to a process of recovering a macrolide antibiotic, especially a tricyclic macrolide such as rapamycin from concentrates of fermentation broth extracts or mother liquors whereby acidic and/or basic components formed in the fermentation process are removed by utilizing aqueous base or acid extraction procedures from a water--immiscible solution of said concentrate and non-polar components are separated from the macrolide by selective solubility.
Patent CA-2136923-C (CA)
Inventor: LAGROLET SERGE PIERRE JEAN
IPC: B23Q11/10
Filed: 1994-11-29
Granted: 2007-03-20
Abstract: The process makes it possible to machine titanium and titanium alloy parts with a cutting speed exceeding 150 m/min by using a spraying or sprinkling of lubricating fluid under very high pressures (60 to 400 bars). The main component is a spraying flange or collar (2) having internal ducts (5, 6) making it possible to supply under high pressure one or more fluid jets in the direction of the edge (9) of the cutting tip (10).
Patent CA-2137477-C (CA)
Title: Polyamide and polyamide composition
Inventor: OKA HIDEAKI
IPC: C08G69/26
Filed: 1994-12-07
Granted: 2002-05-07
Abstract: A polyamide (9-T polyamide) comprises a dicarboxylic acid component (a) comprising 60 to 100 mole % of the dicarboxylic acid component of terephthalic acid and a diamine component (b) comprising 60 to 100 mole % of the diamine component of 1,9-nonanediamine, said polyamide having an intrinsic viscosity [.ETA.] as determined by measurement in concentrated sulfuric acid at 30°C of 0.6 to 2.0 dl/g and having at least 10% of terminal groups thereof blocked. Another polyamide (9M-T polyamide) comprises a dicarboxylic acid component (a) comprising 60 to 100 mole % of the dicarboxylic acid component of terephthalic acid and a diamine component (b) comprising 60 to 100 mole % of the diamine component of 1,9-nonanediamine and 2-methyl-1,8-octanediamine, the molar ratio between said 1,9-nonanediamine and said 2-methyl-1,8-octanediamine being in a range of 60:40 to 99:1, said polyamide having an intrinsic viscosity [.ETA.] as determined by measurement in concentrated sulfuric acid at 30°C of 0.4 to 3.0 dl/g. These polyamides have excellent moldability, as well as excellent hot water resistance, surface neatness, heat resistance, mechanical characteristics, low-water-absorption property and chemical resistance. Polyamide compositions comprise the 9-T polyamide or 9M-T polyamide and a filler are suitably used as engineering plastics.
Patent CA-2139554-C (CA)
Title: Waste water treatment method and apparatus
Inventor: JOWETT E CRAIG
IPC: C02F3/10
Filed: 1995-01-04
Granted: 2008-09-09
Abstract: The treatment system is for use with septic tank effluent. Water is passed over polyurethane foam blocks, arranged in a heap so that air can circulate freely around the blocks. The size of the foam cells is small enough that water soaks into the blocks and is retained therein. The foam is soft and easily deformed. At the points of block-to-block engagement, the blocks deflect and conform to each other, giving rise to a large contact area through which water can pass between blocks.
Patent CA-2142218-C (CA)
Inventor: MEYERS PHILIP E
IPC: A01F12/44
Filed: 1995-02-10
Granted: 1999-06-15
Abstract: An air flow deflector panel for insertion into existing combines of the axial flow type without modification to the combines for changing the direction of air flow from the cleaning fan to the sieve section.  The air flow deflector panel includes a plate having mounting brackets for attachment to the existing structure of the combine for holding the plate which extends across the separation chamber behind the outlet of the throat of the cleaning fan.  The plate includes an angled portion for directing a required portion of the air beneath the sieves past the front portion thereof.  The air flow deflector panel accomplishes more effectively separation of the straw and chaff from the grain being collected below the sieve section than is currently possible with certain models of combines of the axial flow type and further eliminates the use of a higher air flow which can in any event result in a portion of the grain being expelled with the debris.
Patent CA-2143128-C (CA)
Title: Router
Inventor: BLICKHAN STEFAN
IPC: B23Q11/00
Filed: 1995-02-22
Granted: 2002-04-30
Abstract: A router with a cutter head containing the drive motor so that the cutter head is held in a displaceable manner at guide columns which are secured at a base plate which is provided with a central opening for the passage of a cutter inserted in the tool holder of the cutter head, is provided in the base plate with a suction intake channel which surrounds the central opening over at least the larger part of its periphery and to which a suction extraction channel is connected. The suction extraction channel runs inside one of the guide columns which for this purpose has been constructed so that it is hollow.
Patent CA-2144225-C (CA)
Inventor: MANDLE JAMES S
IPC: B44D3/00
Filed: 1995-03-08
Granted: 2001-08-28
Abstract: A press and a method for using the press to tie-dye eggs is claimed. The press comprises a planar material having a surface; a center fold line essentially dividing said planar material into two parts, each part having in the surface of said planar material, a depression such that when the planar material is folded along said centerfold line, the two depressions align to define a closed void that is substantially egg-shaped; each depression further having at least one predetermined locus for puncturing.
Patent CA-2157129-C (CA)
Title: Improved epoxide isomerization catalysts
Inventor: FARAJ MAHMOUND K
IPC: C07C29/56
Filed: 1995-08-29
Granted: 2005-07-26
Abstract: Improved catalysts for isomerizing epoxides to allylic alcohols are disclosed. The catalysts contain lithium phosphate supported on high-purity silica. The use of high-purity silica as a support results in improved epoxide conversion and allylic alcohol selectivity, and reduced by-product generation. The invention includes a process for isomerizing epoxides using the catalysts. The process is well-suited to the manufacture of allyl alcohol from propylene oxide.
Patent CA-2172617-C (CA)
Title: Process and device for forming and moving stacks of printed sheets
Inventor: KOELLE HELMUT
IPC: B65H31/30
Filed: 1994-09-24
Granted: 1999-07-20
Abstract: The present invention pertains to a process and a device for forming stacks from printed documents or other sheets (9). The sheets (9) are either moved forward individually or are separated from a web (2) of printed sheets by tearing or cutting, and they are arranged in a stream one on top of another such that the next sheet (9) comes to lie offset under the preceding sheet (9). The stack (10) is formed by the sheets (9) arranged in a stream coming into contact with a stop (11). To lose little time during the transfer of a finished stack (10) of sheets, a gap (25) is formed between the last sheet (9) belonging to the stack (10) and the next sheet before the sheets (9) are arranged in a stream. As soon as the last sheet (9) has reached the stacking position, the stop (11) is removed from its stop position, so that the stack (10) is moved away from the belt conveyor (20). The stop (11) is then returned into its stop position, and the next stack (10) is formed.
Patent CA-2175621-C (CA)
Title: Rotationally stable contact lens designs
Inventor: ROFFMAN JEFFREY H
IPC: G02C7/04
Filed: 1996-05-02
Granted: 2007-01-09
Abstract: Non-ballasted, eyelid rotationally stabilized designs are disclosed for use in toric or multifocal toric contact lenses. The back surface of the lens includes a toric or multifocal toric surface and also thin top and bottom zones (slab offs) to achieve eyelid rotational orientation and stabilization. The advantage of this technical approach is in mold manufacturing, wherein the design allows the use of any chosen power spherical stock front mold.