baber/WOPTO huggingface dataset:
Patent CA-2156789-A1 (CA)
Title: Process for producing 1-hexene
Inventor: TAMURA MITSUHISA
IPC: C07B61/00
Filed: 1995-08-23
Abstract: A process for preparing 1-hexene which comprises trimerizing ethylene in a 1-hexene solvent in the presence of a catalyst system prepared by contacting in a 1-hexene solvent the following components (A), (B), (C) and (D):     (A) a chromium-containing compound represented by the general formula:  CrXkYm wherein X is a residue of a carboxylic acid, a residue of a 1,3-diketone, a halogen atom or an alkoxyl group, k is an integer of 2 to 4, Y in Ym is an amine compound, a phosphine compound, a phosphine oxide compound, a nitrosyl group or an ether compound and m is an integer of 0 to 6, with the proviso that any two Y's may be same or different;     (B) trialkylaluminum or dialkylaluminum hydride; (C) a pyrrole compound or a derivative thereof; (D) a group 13 (III B)-halogen compound represented by the general formula:  MTtU3-t or a group 14 (IV B)-halogen compound represented by the general formula:  M'Tt'U4-t' wherein M is an atom from the group 13 (III B), M' is an atom from the group 14(IV B), T is an alkyl group, an aryl group, an allyl group or a hydrogen atom, U is a halogen atom, t is a real number of 0 or more and less than 3 and t' is a real number of 0 or more and less than 4.
Patent CA-2158435-A1 (CA)
Title: Pathlength corrected oximeter and the like
Inventor: CHANCE BRITTON
IPC: G01N21/47
Filed: 1994-03-15
Abstract: A pathlength corrected spectrophotomo-ter for tissue examination includes an oscilla-tor (10) for generating a carrier waveform of a selected frequency, an LED light source (22a-22c) for generating light of a selected wave-length that is intensity modulated at the selected frequency introduced to a subject, and a photo-diode detector (24a-24c) for detecting light that has migrated in the tissue of the subject. The spectrophotometer also includes a phase detec-tor (60a-60c) for measuring a phase shift be-tween the introduced and detected light, a mag-nitude detector (40a-40c) for determination of light attenuation in the examined tissue, and a processor (70) adapted to calculate the photon migration pathlength and determine a physio-logical property of the examined tissue based on the pathlength and on the attenuation data.
Patent CA-2161274-A1 (CA)
Title: Connector
Inventor: VAILLANCOURT VINCENT L
IPC: A61M39/04
Filed: 1995-10-24
Abstract: A female luer connector for intravascular or urological use is provided with a needle having a closed distal end with an opening in the side of the needle. In addition, the needle is sealingly received within a recess of a rubber septum with an interference fit between the distal end of the needle and the septum. A slit may be formed in the septum to facilitate penetration of the needle through the septum when in use. In one embodiment, the septum has an elongated recess so that the needle may be received under compression in one portion for storage purposes and in a second portion when in use.
Patent CA-2161526-A1 (CA)
Inventor: KLINGLER KNUD
IPC: A47C7/46
Filed: 1994-04-22
Abstract: The invention relates to an apparatus for the level adjustment and/or arching adjustment of a flexibly resilient support element (4) for the lordosic vertebrae of a sitting person, and which is fitted in the frame (1) of a back rest of a seat, each apparatus comprising a gear mechanism (12) including a worm (14), a worm wheel (15), a pinion (16) and a tooth element as well as a drive means. According to the invention the gear mechanism is directly connected to the drive means in such a manner that the rigid drive shaft (13) thereof carries the worm (14) engaging into the worm wheel (15), the pinion (16) being fixed axially in the worm wheel (15) in tooth engagement with a gear wheel (17) in a plane parallel to the worm gear (15), The gear wheel (17) being associated with at least one reel (21) to which the one end of the sheathed cable (23) of a Bowden cable assembly (24) is fixed and onto which it can be wound, the gear wheel (17) comprising at least one projection, which coacts with stop surfaces inside the casing (11) of the gear mechanism (12) to limit in a defined manner the movement of the gear wheel (17). Preferably the drive means is an electric motor.
Patent CA-2161773-A1 (CA)
Title: Method and apparatus for changing dies in thermoforming presses
Inventor: PADOVANI PIETRO
IPC: B30B15/02
Filed: 1993-12-27
Abstract: Disclosed is a method for fitting or replacing dies in thermoforming equipment provided with a base, a supporting structure supported by the base, a supporting head for at least one counter-die supported by the supporting structure, a supporting table for at least one die supported by the base beneath the supporting head, actuation means for the head and for the supporting table to control a sequence of controlled insertion and withdrawal movements between the head and the supporting table to cause the at least one die to move relative to the corresponding counter-die, and feed means, for a sheet of thermoformable material for the at least one die, designed to operate synchronously with the actuation means and including a pair of longitudinal members to advance the sheet in a transverse direction with respect to the direction of relative movement of the at least one die, the method comprising withdrawing the longitudinal members into a waiting position, laterally displacing the at least one counter-die closed against the at least one die in a direction transverse to that of the longitudinal members, and advancing the longitudinal members from the waiting position to a working position. Also disclosed is thermoforming apparatus as described above.
Patent CA-2161869-A1 (CA)
Title: N-alkylthio polyamine derivatives as radioprotective agents
Inventor: EDWARDS MICHAEL L
IPC: C07F9/165
Filed: 1994-04-28
Abstract: The present invention relates to certain polyamine thiols which are useful as radioprotective agents and which have the following formula (I) or (II) (see formula I) wherein m is an integer from 2 to 4, n is an integer from 4 to 10, R is C2-C6 alkyl, and B1, B2, B3 and B4 are each independently H, -CH2CH2SH or -CH2CH2SPO3H2; with the proviso that at least one of B1, B2, B3 or B4 is other than H;  or (see formula II) wherein m is an integer from 2 to 4, n is an integer from 3 to 10, R is C2-C6 alkyl, and B1, B2 and B3 are each independently H, -CH2CH2SH or -CH2CH2SPO3H2; with the proviso that at least one of B1, B2 or B3, is other than H; and the pharmaceutically acceptable addition salts thereof.
Patent CA-2161992-A1 (CA)
Title: Dust control system
Inventor: KEARNEY KEN
IPC: B65G69/18
Filed: 1995-11-02
Abstract: A dust control system and method for controlling the dust emitted into the atmosphere while dumping grain at a pit at grain elevators. The system includes a plurality of sections, including metering sections with sensing device and dump sections with louvers in each section which are opened and closed in response to predetermined signals. The predetermined signals may be electrically generated or manually applied to ensure that the proper louvers are opened or closed so that the air and dust in the pit does not escape into the atmosphere during the unloading of grain.
Patent CA-2166835-A1 (CA)
Title: Stabilized methyline chloride based composition for metal degreasing
Inventor: MICHAUD PASCAL
IPC: C07C19/03
Filed: 1996-01-09
Abstract: A methylene chloride based compsn. for hot cleaning and degreasing of metals is stabilised by 1,2-epoxyalkane (I) and acetal (II).
Patent CA-2168202-A1 (CA)
Title: Efficient gene transfer into primary lymphocytes
Inventor: DOUGHERTY JOSEPH
IPC: C12N15/09
Filed: 1994-08-01
Abstract: The present invention pertains to a method for efficiently introducing exogenous genes into primary lymphoid cells without drug selection which comprises the steps (a) deriving a retroviral vector and a helper cell combination that will yield a level of virus production in the range from 5 x 106 to 5 x 107 units/ml by transfecting a vector into a helper cell followed by selection, isolation of cell clones, and determination of viral titers to identify which virus-producing cell lines produce a virus titer in the range from 5 x 106 to 5 x 107 units/ml; (b) isolating a lymphoid cell subpopulation which can repopulate a specific lymphoid lineage or is a long-lived population by treating a suspension of lymphoid cells with a monoclonal antibody which removes undesired lymphoid cells to obtain an enriched lymphoid subpopulation; (c) culturing the enriched lymphoid subpopulation from step (b) with growth factors specific to the lymphoid subpopulation; (d) co-cultivating the lymphoid subpopulation from step (c) with a lawn of irradiated virus-producing cell line from step (a) to produce an infected lymphoid subpopulation; and (e) harvesting the infected lymphoid subpopulation. The invention further relates to a population of transfected lymphocytes, in whihch greater than about 90 % of the lymphocytes contain a provirus.
Patent CA-2170257-A1 (CA)
Title: Packaging of ground coffee of the predosed pastille type and espresso coffee machine using such packaging
Inventor: BLANC JEAN PIERRE
IPC: A47J31/40
Filed: 1994-09-05
Abstract: PCT No. PCT/FR94/01039 Sec. 371 Date Feb. 21, 1996 Sec. 102(e) Date Feb. 21, 1996 PCT Filed Sep. 5, 1994 PCT Pub. No. WO95/07041 PCT Pub. Date Mar. 16, 1995Packaging of ground coffee in the form of pastille, "dosette" or predosed bag (1) usable in espresso coffee machines, the pastille, the "dosette" or the predosed bag (1) being formed of filter-paper (3) which encloses the ground coffee (4). The ground coffee content (4) placed in the pastille or the like is partially or totally circumscribed at its periphery, by at least one piece (6) of a sufficiently rigid material acting as a frame, so that the pastille or the like (1) has a good mechanical behaviour. Application to the production of coffees.
Patent CA-2171000-A1 (CA)
Title: Optical fibre organizer
Inventor: MACKEN LUK JOZEF
IPC: G02B6/00
Filed: 1994-09-02
Abstract: An optical fibre organizer which has at one face thereof: 1. an inlet port and an outlet port through which fibres can pass substantially in the plane of that face; 2. a through port that extends through that face to an opposite face of the organizer and 3. fibre storage means positioned with respect to the ports such that a fibre passing between the inlet and through ports or between the outlet and through ports is constrained by an outer surface of the storage means to a minimum bend radius at least equal to the critical bend radius of the fibre.
Patent CA-2171888-A1 (CA)
Inventor: FUJIWARA NAOKI
IPC: B41M5/44
Filed: 1996-03-15
Abstract: Disclosed  herein  is  a  paper  coating  agent  which comprises a modified polyvinyl alcohol (A) containing 3 to 15 mol% of ethylene units and an alkali metal ion (B), with the ratio of component (A) to component (B) being 100:0.003 to 100:1 in parts by weight.  Disclosed also herein is a heat-sensitive recording material which comprises a coating layer on a substrate,  said coating layer comprising a modified polyvinyl alcohol containing 3 to 15 mol% of ethylene units.     The paper coating agent of the present invention has such excellent solubility in boiling water that there is not a problem of insoluble matter in an aqueous solution of the coating agent.   When applied for a paper surface coating agent, it gives coated paper without discoloration, superior, in   surface   strength,   air   barrier   properties,   and printability.  When applied for a paper pigmented coating agent, it gives coated paper without discoloration, superior in water resistance and printability.     The heat-sensitive recording material of the present invention is superior in color developing sensitivity, water resistance, oil resistance, plasticizer resistance, and PVC film resistance.  Furthermore it is superior in high-speed printability and image resolution, and it can be used in the field,  such  as  facsimile,  where  high-speed printing  is required.
Patent CA-2172704-A1 (CA)
Title: Circuit arrangement for compensating frequency deviations of a voltage-controlled oscillator, using a second oscillator
Inventor: NEUDECKER ALBRECHT
IPC: H03L1/00
Filed: 1996-03-26
Abstract: The oscillation frequency of a non-externally voltage-controlled oscillator produces a control signal for the monolithic integrated voltage-controlled oscillator. This control signal is opposed to the influence of the operating temperature and the manufacturing parameters of the semiconductor chip in a similar way as the frequency of the voltage-controlled oscillator. The control signal is emitted through an iterative network consisting of a monostable multivibrator, a low-pass filter, and an amplifier. The iterative network produces an actuating signal for the voltage-controlled oscillator to counteract frequency deviations.
Patent CA-2172714-A1 (CA)
Title: Quick-cooking oven
Inventor: MCKEE PHILIP R
IPC: B23K15/10
Filed: 1994-09-26
Abstract: An oven (10) for cooking by hot air impingement includes a housing (14) defining a cooking chamber (16) adapted to receive a food product (12) for cooking, a hot air plenum (18) configured and dimensioned to hold a volume of air and a conduit (20) for providing gaseous communication therebetween.  Associated with the plenum (18) is a thermal energy source (25) for heating gas disposed in the plenum (18).
Patent CA-2175492-A1 (CA)
Title: V-line skate with expandable axle
Inventor: BRANDNER ERNEST E
IPC: A63C17/04
Filed: 1995-05-19
Abstract: A mounting plate (20, 120) for a linear skate upon which a plurality of wheel supporting brackets (22, 24, 26 & 28) are affixed in an equally spaced, generally aligned relationship.  A wheel-receiving axle (32, 34, 36 & 38) is secured in each bracket, with each axle intended to receive thereon a closely fitting skate wheel (12, 14, 16 & 18). Each axle has a novel, expansion-producing arrangement (52, 62) enabling the outer end of the axle to be enlarged so as to tightly engage the non-rotatable inner portion (80) of a respective skate wheel.  Each wheel is thus retained on its respective axle in a fully operational manner, without fear of the wheel coming off the end of the axle.  The mounting plate has raised shoulders (84 & 86; 126 & 128) along each long side, serving not only to prevent undesired bending or twisting, but also serving to prevent the several wheel-supporting  brackets  from  twisting  out  of  a  desired relationship to the mounting plate.
Patent CA-2180608-A1 (CA)
Title: Packaged cleaning composition
Inventor: FOSKETT PETER ADRIAN
IPC: B05B11/00
Filed: 1996-07-05
Abstract: A packaged product comprising an aqueous or solvent-containing non-ionic cleaning composition in a spray dispensing package.  The cleaning composition has a pH of > 10.  The package is adapted to produce a spray in a forward direction when a trigger (18) is actuated by a user.  The package comprises a spray pump (16) which has an operating plunger  (40)  that generates a spray on downward displacement.   Rearward actuating force  is manually applied to the trigger  (18)  forward of the plunger (40), to pivot the trigger (18) about an axis rearward of the plunger (40) to deliver spray through a spray aperture (50) in the trigger (18).  In a preferred embodiment, a spray of 0.3-0.35ml of product is delivered in a cone having an angle of 25 to 75 degrees.
Patent CA-2181198-A1 (CA)
Inventor: WATSON KEITH ROBERT
IPC: E03D5/10
Filed: 1996-07-12
Abstract: An apparatus is disclosed for flushing fluid through a fluid conduit, e.g. for automatically flushing urinals. A preferred urinal flushing apparatus comprises a) an infra-red sensor for detecting the presence of a person, and for sending a detection signal to a controller; b ) a valve connected to a water supply for flushing water to the urinals or to a header for the urinals; c) the controller. The controller contains i) a first timer for counting down a first predetermined time interval after the sensor has detected the presence of a person, ii) means for opening the valve, iii) means for ignoring detection signals sent to the controller during the first predetermined time interval and iv) means either to a) open the valve when the first predetermined time interval expires, and to close the valve after a second predetermined time interval has expired. The controller may also have a timer for flushing the urinal after a long period of inactivity, in order to avoid the P-traps going dry.       Another embodiment of the apparatus is useful for preventing freezing of pipes in cold weather.
Patent CA-2181432-A1 (CA)
Title: Improved processibility and lacing resistance when silanized pigments are incorporated in polymers
Inventor: TOOLEY PATRICIA ANN
IPC: C08L83/04
Filed: 1995-02-28
Abstract: White-pigmented polymers (particularly, polyolefins such as polyothylene) containing white pigments treated with at least one or a mixture of at least one silane and at least one polysiloxane are disclosed to improve processibility in compounding and improve performance properties such as lacing resistance in a polymeric matrix.
Patent CA-2181444-A1 (CA)
Title: Vanadate compounds for the treatment of proliferative disorders, metastases and drug resistant tumors
Inventor: CRUZ TONY
IPC: A61K33/24
Filed: 1995-01-18
Abstract: The present invention relates to the use of vanadate compounds or derivatives or analogues of vanadate compounds as antiproliferative and anti-metastatic agents, and/or to treat drug resistant tumors in animals; to compositions containing vanadate compounds adapted for such use; to methods for the treatment of proliferative disorders, to methods of reducing the ability of a tumor to metastasize, and to methods for treating drug resistant tumors. The invention also relates to methods for testing for substances which affect cell proliferation.
Patent CA-2181723-A1 (CA)
Inventor: ANNECHARICO ROBERT L
IPC: B01D1/02
Filed: 1995-11-20
Abstract: The present invention relates to a heating device for submersion within a tank of water to boil the water to produce steam, and for superheating the steam, comprising an outer sleeve (12); an inner sleeve (14) partially disposed through the outer sleeve and having a proximal end, and a distal end in the form of an outlet port (14c), the inner sleeve (14) further defining a vapor chamber (14a); a heating element (16)  disposed within the vapor chamber and an electrical communication with an external electrical power supply, the  heating element (16) adapted to produce heat in n response to electrical energy from the power supply; a steam inlet tube (26) extending outwardly from  the inner tube and  in fluid communication  with the vapor chamber; and a one way valve  (22)  disposed within  the  vapor  chamber adjacent the outlet port (14c), the valve (22) adapted to selectively gate the flow of vapor from within the vapor chamber through the outlet port; wherein the heating device is configured to heat the water within the tank to a boil to produce steam,  the steam  inlet tube (26) adapted to direct the steam into the vapor chamber (14a) wherein the steam is superheated  through  direct contact  with the heating element producing vapor, the vapor generating sufficient  pressure  to open the valve and exit  the heating device through the outlet port (14c).
Patent CA-2182518-A1 (CA)
Inventor: ZIMMERMANN GERHARD
IPC: C10G9/16
Filed: 1995-02-21
Abstract: The invention is directed to a heat exchange surface in reactors and/or heat exchangers of installations for the conversion of hydrocarbons and other organic compounds at high temperatures in the gaseous phase. According to the invention, the metallic surfaces coming into contact with the organic substances are treated at a temperature of 300 to 1000°C over a period of 0.5 to 12 hours with a mixture of a silicon- and sulfur-containing product and a dry gas flow which is inert with respect to the silicon- and sulfur-containing product. The invention is further directed to a process for producing a catalytically inactivated metallic surface in chemical reactors and/or heat exchangers.
Patent CA-2184393-A1 (CA)
Title: Receiver based methods and devices for combating co-channel ntsc inference in digital transmission
Inventor: GHOSH MONISHA GHOSH
IPC: H04L25/03
Filed: 1995-12-15
Abstract: A device and method for removing signal interference from a digital signal by using an adaptive filter which tunes to the periodic components of the interfering signal. The output of the adaptive filter is then subtracted from the received signal to produce an error signal. This error signal is then used to recursively update the taps of the adaptive filter. The invention also relates to the use of the adaptive filter in conjunction with a DFE.
Patent CA-2185914-A1 (CA)
Title: Seat recliner
Inventor: KRESKY FRED C
IPC: B60N2/235
Filed: 1996-01-18
Abstract: A connector structure (30) for connecting a rigid member disposed towards the lower portion of one side of an automobile seat back (20) to a rearward portion of an automobile seat (12). The connector structure enables the seat back to be reclined at varying angles with respect to the automobile seat by being pivoted about a first pivot point (34) and further enables the seat back to be positioned in a manner which permits a back surface thereof to provide a horizontal cargo support by being pivoted about a second pivot point (38). The connector structure comprises a seat member (40), an arm (42) with a releasable locking assembly (43), a latch assembly (100), and a lever mechanism (50).
Patent CA-2186229-A1 (CA)
Title: Phased array cellular base station and associated methods for enhanced power efficiency
Inventor: CHARAS PHILIPPE M
IPC: H04B7/26
Filed: 1995-02-28
Abstract: A base station includes a radio channel generating circuit for generating a plurality of individual radio channel signals each at a different frequency from one another, and a plurality of individual phased array antennas operatively connected to the radio channel generating circuit so that each individual phased array antenna transmits only one individual radio channel signal at a time.  Each of the phased array antennas preferably includes a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern.  Each radiating element is readily provided by a stripline, and the substrate is preferably a circuit board.  Accordingly, another feature of the base station according to the invention is that power radiated by each phased array antenna can be selectively controlled to reduce possible interference while maintaining communications with respective mobile units that are both near and far from the base station.  A switch may be provided between the radio channel generating circuit and the phased array antennas to facilitate cell splitting.  Method aspects for operating the base station are disclosed.