baber/WOPTO huggingface dataset:
Patent CA-2092217-C (CA)
Title: Designing a three-dimensional free-form surface
Inventor: TAKEZAWA KUNIO
IPC: G06F17/50
Filed: 1993-03-23
Granted: 2002-03-19
Abstract: In a method and an apparatus for designing a three-dimensional free-form surface by directly manipulating points on the free-form surface, under the condition that each of main weight functions for obtaining an equation for the free-form surface, having each of sample points as point of the surface, is equal to a function obtained by smoothing unknown virtual data by auxiliary weight functions already known, said main weight functions are obtained for each of said sample points, whereby a function value to one of plural sets of a first component and a second component of three-dimensional coordinate data of said sample points is a values other than 0, and function values to the remaining of said plural sets are 0, interpolation values of said free-form surface are obtained from said equation for the free-form surface acquired by smoothing a plurality of a third component of said three-dimensional coordinate data of said sample points by said main weight function, data for depicting three-dimensional graph are calculated from said free-form surface obtained by said interpolation values and are displayed on a display unit, and said free-form surface is designed by adjusting the third component of said three-dimensional coordinate data of said sample points while watching said three-dimensional graph displayed on said display unit.
Patent CA-2092243-C (CA)
Inventor: ROCH OLIVIER
IPC: B65H5/16
Filed: 1993-03-23
Granted: 1998-01-06
Abstract: The present invention concerns a device for feeding a stack of flat articles on edge, especially mail items, to a de-stacker head provided with a support surface, the device comprising a main feed magazine in which the stack is disposed and a plate pushing the rear of the stack. A secondary feed magazine is introduced between the main magazine and the support surface of the de-stacker head, the secondary magazine having an upwardly inclined transfer surface, its edge adjacent to the support surface of the de-stacker head being higher than the latter.
Patent CA-2093019-C (CA)
Title: Apparatus and Method for Hydrolysis of Cyanide-Containing Liquids
Inventor: BELL DAVID HOLDEN
IPC: B01F5/04
Filed: 1991-10-10
Granted: 1997-07-22
Abstract: The invention provides an apparatus for continuous thermal hydrolysis of cyanide ions and cyanide-containing ions contained in a liquid, comprising an elongated tubular reactor of a size selected to enable the liquid to be retained in the reactor for a predetermined reaction time, a conduit for supplying the liquid to the reactor, means for adding a base to the liquid prior to heating, and means, associated with the conduit, for instantaneously and uniformly heating the liquid to a preselected temperature. The apparatus preferably uses high pressure steam to heat the liquid and appears much less subject to fouling by scale. The invention also provides a continuous process for hydrolyzing a cyanide-containing liquid stream, comprising adjusting the pH of the liquid stream to render the liquid stream strongly basic; rapidly and uniformly heating the liquid stream to a predetermined elevated temperature; feeding the liquid to an elongated substantially vertical tubular reactor; maintaining the liquid in the reactor for a predetermined time to permit substantially complete degradation of cyanide ions and cyanide-containing ions in the liquid. The cyanide-containing liquid may preferably be uniformly and rapidly heated to the desired temperature by injecting steam under pressure into the liquid.
Patent CA-2096177-C (CA)
Title: Broadband antennas
Inventor: PODGORSKI ANDREW S
IPC: H01Q13/02
Filed: 1993-05-13
Granted: 2002-07-30
Abstract: A structure for use in an antenna or as a broadband electromagnetic field simulator having an open horn TEM waveguide coupled to launch energy in a strip line formed between a forwardly extending plate section and a ground plane. When used as a simulator the test volume is located outside the horn between the forwardly extending plate section and the ground plane. The plate section which functions gas a radiating element initially extends parallel to the ground plane and then curves downwardly to terminate adjacent it. In alternative embodiments the plate section extends upwardly, initially with an exponential configuration. In a simulator embodiment it may then terminate at a vertical, grounded wall faced with anechoic material. The horn contains a flat conductor plate positioned parallel to and spaced from the top edge defining an asymmetrical transmission line within the horn. This plate conductor can be coupled to the forwardly extending plate section directly, by means of an RLC coupling network or by means o~ an array of literally spaced conductors.
Patent CA-2097268-C (CA)
Title: Absorbable bone sealant
Inventor: LIGHT NICHOLAS D
IPC: A61K38/39
Filed: 1993-05-28
Granted: 2005-09-06
Abstract: The invention provides absorbable compositions for use as or in bone sealants. The compositions comprise, by weight: from 10% to 70% of a fibrous protein such as collagen; from 1% to 20% of a tackifying agent such as dextran; from 0.001% to 20% of a mucopolysaccharide such as hyaluronic acid; and from 10% to 80% of a physiologically acceptable electrolyte solution such as phosphate - buffered physiological saline.      The compositions are malleable, absorbable, biocompatible and exhibit excellent storage properties at 30°C.
Patent CA-2100885-C (CA)
Inventor: MALLET MARK
IPC: F26B21/00
Filed: 1993-07-20
Granted: 1995-11-21
Abstract: Method and apparatus for drying or purging droplets or films of liquid from the interior surfaces of hollow articles having an access passageway leading to a chamber, such as air rebreathing or resuscitator  bags  used  in  medical  procedures  that  includes supporting the bag so as to dispose the access passageway lowermost and  generating  and  directing  a  gaseous  stream,  preferably pressurized air,  up  through a  portion of  the  passageway and releasing same for expansion into the chamber by means of an upstanding tubular formation terminating in a nozzle in the upper region thereof and withdrawing the expanded airstream downwardly through the remaining portion of the access passageway, whereby adhering liquid is impelled to coalesce to descend under gravity as well as taken up by entrainment and evaporation into the downwardly discharging airstream.
Patent CA-2103380-C (CA)
Title: Ethylene/.alpha.-olefin copolymer composition, graft modified ethylene/.alpha.-olefin copolymer composition, ethylene copolymer composition, and multi-stage olefin polymerization process
Inventor: TSUTSUI TOSHIYUKI
IPC: C08F10/00
Filed: 1993-11-18
Granted: 2002-07-02
Abstract: An ethylene/.alpha.-olefin copolymer composition comprising an ethylene/.alpha.-olefin copolymer and another ethylene/.alpha.-olefin copolymer [B1]. The former ethylene/.alpha.-olefin copolymer can be prepared in the presence of a catalyst for olefin polymerization containing an organoaluminum oxy-compound (a) and at least two kinds of specific metallocene compounds (b), and the latter ethylene/.alpha.-olefin copolymer [B1] can be prepared in the presence of a catalyst for olefin polymerization containing an organoaluminum oxy-compound (a) and a specific metallocene compound (b').      A graft modified ethylene/.alpha.-olefin copolymer composition obtained by graft copolymerizing an ethylene/.alpha.-olefin copolymer composition with a polar monomer. The ethylene/.alpha.-olefin copolymer composition comprises an ethylene/.alpha.-olefin copolymer prepared in the presence of a catalyst for olefin polymerization containing an organoaluminum oxy-compound (a) and a specific metallocene compound (b'), and the above ethylene/.alpha.-olefin copolymer [B1].      An ethylene copolymer composition comprising the above-mentioned graft modified ethylene/.alpha.-olefin copolymer composition and polyolefin.      A multi-stage olefin polymerization process comprising a stage of preparing an ethylene/.alpha.-olefin copolymer [A1] in the presence of a catalyst for olefin polymerization containing an organoaluminum oxy-compound (a), a specific metallocene compound (b-I) and a specific metallocene compound (b-II) and a stage of preparing an ethylene/.alpha.-olefin copolymer [B1] in a different polymerizer from that for the copolymerization reaction of the above stage in the presence of a catalyst for olefin polymerization containing an organoaluminum oxy-compound (a) and a specific metallocene compound (b').      The ethylene/.alpha.-olefin copolymer composition of the invention is excellent in heat stability and moldability.      From this composition, a film of high transparency, high mechanical strength and high blocking resistance can be produced. The graft modified ethylene/.alpha.-olefin copolymer composition of the invention is excellent in moldability.      From this composition, a film having high transparency and good adhesion to highly polar materials can be produced.      The ethylene copolymer composition of the invention is excellent in moldability. From this composition, a film having high transparency and good adhesion to highly polar materials can be produced. The multi-stage olefin polymerization process of the invention can prepare an ethylene/.alpha.-olefin copolymer composition of good heat stability and moldability from which a film of high transparency and high mechanical strength can be produced.
Patent CA-2105824-C (CA)
Title: Wheelchair accessible desk/lift
Inventor: GEISS MICHAEL J II
IPC: A47B37/00
Filed: 1993-09-09
Granted: 2000-08-22
Abstract: A combination desk and wheelchair-lift adapted primarily for medical-surgical examination/treatment of a wheelchair-seated person comprises a mobile desk unit having a selectively retractable caster assembly. The wheelchair lift is attached to the desk by a linking slider assembly and is movable between a stores position underneath the desk and an extended position spaced from the desk. When in the extended position, a wheelchair may be rolled onto the wheelchair-lift rotatable platform and raised in a vertical direction by electrically actuated lifting mechanisms on either side of the platform. A clamp assembly is provided adjacent one of the lifting mechanisms for attaching a variety of diagnostic examination/treatment or medical-surgical equipment positioned adjacent the patient seated in the wheelchair.
Patent CA-2106919-C (CA)
Title: Communication system
Inventor: OSHIMA MITSUAKI
IPC: H04N21/845
Filed: 1993-09-24
Granted: 1999-05-11
Abstract: At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively. Upon receiving the TV signal, a receiver can reproduce only the low frequency band component or both the low and high frequency band components, depending on its capability. Furthermore, a communication system based on an OFDM (= ORTHOGONAL FREQUENCY DIVISION MULTIPLEX) system is utilized for data transmission of a plurality of subchannels, wherein the subchannels are differentiated by changing the length of a guard time slot or a carrier wave interval of a symbol transmission time slot, or changing the transmission electric power of the carrier.
Patent CA-2108825-C (CA)
Title: Gate-handling crane
Inventor: PISCHKE DAVID L
IPC: B66C1/34
Filed: 1993-10-20
Granted: 1998-06-16
Abstract: Disclosed is a crane for moving an object such as a water dam gate having an attachment device, e.g., a hook, to be engaged by a hookup link. The link is mounted on the crane lifting block for link movement between a first position for engaging the gate hook and a second position for releasing the hook.  Aspects of the invention involve a first apparatus for detecting when the link is within a predetermined location near the hook and a second apparatus for determining whether the link is in the first position or the second position.  Other aspects of the invention involve a unique cable reel and link line arrangement whereby the hookup link is engaged or disengaged from the hook.  A method for moving an object, e.g., a gate of a dam, is also disclosed.
Patent CA-2109719-C (CA)
Inventor: CHOI JIN MIN
IPC: G05D23/19
Filed: 1992-06-29
Granted: 1999-01-05
Abstract: A hot  water  boiler  system  of  the  type  of  an atmospheric    operation,    capable    of    controlling automatically the pressure of room heating water under atmospheric pressure.  A supplement water tank of the type open to atmosphere is disposed in a boiler case.  A room heating  water   supplement   line   equipped  with  an electromagnetic valve is connected to a hot water supply line and a sensor is provided in the water supplement tank to sense a low water level so that automatic room heating water  supplement  is  achieved by opening and  closing operations of the electromagnetic valve according to the sensing operation of the sensor. There  is  also  provided  an  overheat  sensing  circuit equipped with an overheat safety switch disposed and exposed outwardly of a boiler case, capable of achieving automatic water supplying upon a shortage of room heating water  in  a  water  chamber.    The  boiler  system  also comprises  a  circulation pump anti-fixing circuit  for achieving periodical temporary operation of a circulation pump in the summer season that a room heating system is not operated for a long time so that the circulation pump can be always ready for its normal operation.
Patent CA-2112181-C (CA)
Title: Lubricant supplying apparatus
Inventor: MIMA SHUJI
IPC: F16C33/66
Filed: 1993-12-22
Granted: 1999-02-16
Abstract: In a lubricant supplying apparatus, an orifice (10) is formed in an intermediate portion of a drain pipe (8) for discharging lubricant from a bearing (7) lubricated by oil air, and a pressure sensor (11) is arranged in the drain pipe at an upstream side of the orifice.  If the pressure value detected by the pressure sensor is decreased from the normal value, it is judged that the oil air is not being supplied to the bearing.
Patent CA-2114550-C (CA)
Title: Filtre a air a separateur air-huile et silencieux combines, en conduite
Inventor: WALKER ROBERT A
IPC: F02F7/00
Filed: 1992-07-29
Granted: 1999-04-27
Abstract: Dans cette invention, un système combiné (20) sert à réduire le bruit d'un écoulement d'air et à le filtrer, tout en séparant les mélanges contaminant l'air. Un filtre à air (100) est couplé à un carter annulaire (22) comprenant une paroi externe (24) et un conduit (26) définissant un axe central (28), ledit conduit (26) comportant une entrée (30) de gaz primaire couplée au filtre à air (100) et une sortie (32) de gaz primaire, ainsi qu'une paroi (34) pour le conduit. Le système (20) comprend un orifice (42) d'entrée secondaire qui traverse la paroi extérieure (24). Un orifice (46) de sortie secondaire définit une ouvetrure dans la paroi du conduit de sorte qu'il n'existe pas de voie d'écoulement en ligne droite entre l'entrée et la sortie secondaires. Un silencieux (90) pour l'air se loge dans le conduit (26). Un passage prévu entre l'entrée et la sortie secondaires est défini à l'extérieur par la paroi extérieure (24) et à l'intérieur par la paroi (34) du conduit.
Patent CA-2115185-C (CA)
Title: Device for encoding speech spectrum parameters with a smallest possible number of bits
Inventor: OZAWA KAZUNORI
IPC: G10L19/08
Filed: 1994-02-08
Granted: 1998-04-28
Abstract: On encoding with a smallest possible number of bits LPC parameters produced by an LPC analyzer (19) from at least one of subframe signals of each frame signal of an input speech signal, a divider (21) divides the LPC parameters into several parameter regions.  Using vector code books (25(1m), 25(2m)) loaded for each parameter region with code vectors, a vector quantizer (23) quantizes the LPC parameters into, for use as quantized codes, indexes of selected vectors which are selected from the code vectors and of which a linear combination minimizes a quantization distortion.
Patent CA-2120153-C (CA)
Inventor: PASTAN IRA
IPC: C07K16/00
Filed: 1992-09-29
Granted: 2006-06-06
Abstract: The subject invention relates to recombinant immunotoxins, and to uses thereof. In particular, the invention relates to two immunotoxins, referred to as B3(Fv)-PE40 and B3(Fv)-PE38KDEL, which may be used in the treatment of mammalian cancer.
Patent CA-2121894-C (CA)
Inventor: NEGUS CHARLES C
IPC: A61B1/00
Filed: 1992-11-12
Granted: 1997-01-28
Abstract: A self-aligning coupler (50) for a laser endoscope (10) having a body (14) and a lumen (12) extending from the body (14) includes a coupler housing (66); an input port (30) adapted for connection to a laser beam source; and an output port (70) adapt-ed for connection to the endoscope body (14); a tilt assembly (54); an alignment sleeve (52) for extending through the output port (70) and the body (14) into the lumen (12); lens means (38a) mounted with the tilt assembly (54) for projecting the laser beam down the alignment sleeve (52) and fixing the focus of the beam generally on the axis of the alignment sleeve (52); means (55, 56) for centering the sleeve (52) with respect to the lumen (12) and generally aligning the lumen (12) and sleeve (52) axes; and gap means (80) between the tilt assembly (54) and the coupler housing (66) for enabling the tilt assembly (54) to float in the coupler housing (66) laterally relative to the axes of the sleeve (52) and lumen (12) for accommodating misalignment between the body (14) and lumen (12) while maintaining alignment of the lens means (38a) sleeve (52) and lumen (12).
Patent CA-2129491-C (CA)
Title: Hair coloring composition
Inventor: COHEN DAVID
IPC: A61K8/22
Filed: 1994-08-04
Granted: 2002-12-03
Abstract: A two part aqueous composition for coloring and providing durable conditioning to human hair which forms a gel on mixing of an alkaline aqueous lotion first part having a pH of from about 7 to about 11 containing from about 0.005% by weight to about 5% by weight of at least one primary intermediate and at least one coupler for the formation of oxidation dyes, from about 0.1% to about 5% of a cationic polymer, from about 0.5% to about 15% by weight of an anionic or amphoteric surfactant or mixture thereof and at least 70% by weight water, and an aqueous developer second part having a pH of from about 2 to about 6 containing from about 0.5% by weight to about 40% by weight of a peroxide oxidizer and from about 0.1% by weight to about 20% by weight of an anionic polymer, the anionic polymer being characterized in that it is insoluble in the developer and dissolves in the gel which forms when the lotion and developer are mixed.
Patent CA-2130632-C (CA)
Title: Package, socket, and connector for integrated circuit
Inventor: HURTARTE JORGE S
IPC: H05K7/02
Filed: 1994-08-22
Granted: 2000-02-29
Abstract: A dual in-line package for an integrated circuit has pins which engage the holes of a complementary socket, having two rows. A portion of one row is omitted, allowing the holes of a cable connector to engage the corresponding pins of the package.
Patent CA-2130652-C (CA)
Title: Fiber optic high temperature pressure sensor
Inventor: HSU TSUNG-YUAN
IPC: G01L23/16
Filed: 1994-08-22
Granted: 1999-11-23
Abstract: A first surface (46a) of a diaphragm (46) is exposed to high temperature gas in the combustion chamber (32) of an internal combustion engine. The curvature of the diaphragm (46) changes in response to the gas pressure.      Three optical fibers (40,42,44) are spaced along a radius of the diaphragm (46) and have ends which face a second surface (46b) of the diaphragm (46). A light source (50) injects light into a center fiber (40), which is displaced from the center of the diaphragm (46) by a predetermined distance (x). Outer fibers (42,44) receive light from the center fiber (40) after reflection from the diaphragm (46) .      The relative intensities of light reflected from the diaphragm (46) into the outer fibers (42,44) correspond to the curvature of the diaphragm (46) and thereby to the pressure. The outer fibers (42,44) have a larger numerical aperture than the center fiber (40), and the light source (50) fully populates all of the optical modes of the center fiber (40) to reduce modal noise caused by physical perturbation of the fibers (40,42,44). The fibers (40,42, -44) preferably have a square cross-section to maximize linearity. Structure (78) is provided to inhibit thermally induced curvature of the diaphragm. A computer (56) computes the pressure in response to the relative reflected light intensities. A temperature sensor (58) provides an input to the computer (56) which enables compensation for variation of the sensitivity of the diaphragm (46) with temperature.
Patent CA-2131900-C (CA)
Title: Liquid dispenser
Inventor: LEVINE MARSHALL S
IPC: A61B19/00
Filed: 1993-03-12
Granted: 2005-03-08
Abstract: A dispenser (20) for blood and other biological speci-mens (11) is disclosed which provides a means of obtaining a small predetermined quantity of specimen from a closed con-tainer (10) without the need to remove the stopper (13) from the container. The cannula (19) of the device is caused to pierce the container's rubber stopper forming an assembly.      When the said assembly is forced against a target surface; such as microscope slide (30), the force compresses the stop-per and thereby reduces the volume inside the container suffi-ciently to eject a drop of fluid which is dispensed onto a target surface. Stabilizing supports (26) are provided so that fluid emerges from a dispensing tip (22) located a predetermined distance above the target surface which determines the quanti-ty of fluid dispensed. The supports also transmit reactive force from the target surface to compress the rubber stopper of the closed specimen tube.
Patent CA-2134217-C (CA)
Title: Anti-microbial coating for medical devices
Inventor: BURRELL ROBERT EDWARD
IPC: A01N59/16
Filed: 1993-05-19
Granted: 2000-04-11
Abstract: Anti-microbial coatings and method of forming same on medical devices are provided. The coatings ace formed by depositing a biocompatible metal by vapour deposition techniques to produce atomic disorder in the coating such that a sustained release of metal ions sufficient to produce an anti-microbial effect is achieved.  Preferred deposition conditions to achieve atomic disorder include a lower than normal substrate temperature, and one or more of a higher than normal working gas pressure and a lower than normal angle of incidence of coating flux. Anti-microbial powders formed by mechanical working to produce atomic. disorder are also provided. The invention extends to other metal coatings and powders similarly formed so as to provide enhanced solubility.