baber/WOPTO huggingface dataset:
Patent CA-2313470-A1 (CA)
Title: Induction hardening apparatus for a crankshaft
Inventor: GIBBS SPENCER L
IPC: H05B6/36
Filed: 1998-10-28
Abstract: An induction hardening apparatus (20) for inductively heating and quench hardening a crankshaft (21) includes an arrangement of two workstations (33, 36) similarly configured and a robotic device (37) indexing the crankshaft from a first workstation to a second workstation. The induction hardening apparatus is designed with a single induction coil (48) located at the first workstation for the sequential induction heating and quench hardening of the pins of the crankshaft. At the second workstation, a single induction coil (63) is used for the bearing surfaces of the crankshaft. One feature of the present invention is that the induction coils do not contact the surfaces of the crankshaft which are being inductively heated and quench hardened. Crankshaft dimensions and geometry are programmed into servodrive systems (49, 51) which move the corresponding coil in X and Y directions accurately tracing the orbit or path of each pin and each bearing surface. Another feature of the present invention is the use of an offset 180 degree coil (310) which provides improved heating patterns in less time than traditional 90 degree coils.
Patent CA-2314014-A1 (CA)
Inventor: SANTORO RALPH JR
IPC: F16K7/17
Filed: 2000-07-13
Abstract: The invention is a valve for expelling a liquid contaminant from a gas in a conduit. It is used for a conduit with a pressure subject to variations in time. The valve has a housing containing a diaphragm with a control chamber on one side of the diaphragm and an exhaust passage on the other side. A valve seat surrounds the exhaust passage. A spring presses the diaphragm against the valve seat so that the valve is normally closed and an annular chamber surrounds the exhaust passage. A low impedance discharge passage is connected to the annular chamber and to the conduit. A high impedance control passage is connected to the control chamber and is either connected to the discharge passage or to the conduit. When the conduit pressure remains constant in time, the pressure in the control chamber equilibrates with it so that a net pressure force on the diaphragm plus the spring force presses the diaphragm against the valve seat so that the valve is closed. When the conduit pressure is zero, the spring keeps the valve closed. When the pressure in the conduit increases rapidly, the pressure in the annular chamber rises faster than the pressure in the control chamber so that the net pressure force on the diaphragm becomes directed away from the valve seat and overcomes the spring force so that the diaphragm unseats and gas containing the contaminant liquid is purged from the valve.
Patent CA-2316128-A1 (CA)
Title: Call control system and method
Inventor: PINARD DEBBIE
IPC: H04M3/533
Filed: 2000-08-17
Abstract: A call manager receives an incoming call and from this may generate a subsidiary call signal, which it directs to a first call reception component. For example, the call manager may direct the call to a messaging system. If the call manager receives an intercept signal from the caller, it may redirect the subsidiary call signal to another call reception component, for example to another recipient.
Patent CA-2317936-A1 (CA)
Inventor: KESKI-HEIKKILA MIKA
IPC: H04W8/18
Filed: 1999-01-08
Abstract: The present invention relates to a method for changing a subscriber profile on the basis of the iden-tity of the base station serving the terminal equipment in a mobile communication network. Moreover, the invention relates to a system for changing a subscriber profile on the basis of the identity of the base station serving the terminal equipment in a mobile communication network. According to the present invention, an extra identity of a permanent nature is created for each base station, and this identity is sent by the base station to the subscribers in its area. Changing the subscriber profile on the basis of subscriber movements is accom-plished flexibly and considerably more easily and at a lower cost than before.
Patent CA-2318608-A1 (CA)
Title: Investment casting mold and method of manufacture
Inventor: VANDERMEER JOHN
IPC: B22C1/16
Filed: 1999-02-09
Abstract: A process for rapidly forming a ceramic shell mold on an expendable pattern (1) is disclosed. The process entails use of refractory slurries which include a large particle size colloidal silica sol binder. The colloidal silica sol binder has an average particle size of about 40 manometers, i.e., about 3-4 times larger than colloidal silica sol binders heretofore employed in manufacture of ceramic shell molds. The use of the large particle sols yields unfired ceramic shell molds (20) which have about 40 % to about 70 % greater unfired strengths compared to ceramic shells made with prior art small particle size silica sols. Prime coats and refractory back-up coats which use the large particle size sol dry about 30 % to about 40 % faster than prime coats and back-up coats which employ the smaller particle size silica sole of the prior art.
Patent CA-2319199-A1 (CA)
Inventor: ALLAN GEOFFREY
IPC: A61K31/7004
Filed: 1999-01-21
Abstract: La présente invention concerne des compositions et des procédés permettant de réduire la concentration sérique d'insuline, de triglycérides, de cholestérol et/ou de testostérone libre et totale, et/ou d'améliorer l'ovulation, et/ou d'augmenter le niveau de progestérone et/ou de la globuline fixant l'hormone sexuelle chez les mammifères. L'invention se rapporte également à des compositions et des procédés permettant de traiter des maladies du métabolisme caractérisées par une hyperinsulinémie, une hyperandrogénie, une hyperlipidémie et/ou une anovulation, telles que le syndrome de Stein-Leventhal.
Patent CA-2320552-A1 (CA)
Inventor: KNEPLER JOHN T
IPC: A47J27/21
Filed: 2000-09-25
Abstract: An assembly is provided for heating a liquid, such as coffee. The assembly includes a container in which the liquid is retained, first and second electrodes associated with the container, an energy source with which the container can be engaged such that the first electrode comes into contact with the energy source, and a control circuit for supplying voltage from the energy source to the first electrode so that current will pass from the first electrode through the liquid and to the second electrode. Liquid in the container contacts the first and second electrodes and provides an electrical path from the first electrode to the second electrode.
Patent CA-2322930-A1 (CA)
Title: Signal combining scheme for wireless transmission systems having multiple modulation schemes
Inventor: RIAZI HABIB
IPC: H04L69/14
Filed: 2000-10-11
Abstract: In a wireless transmission system that transmits the same information in parallel using two or more different types of modulation schemes, such as a satellite-based digital audio transmission system transmitting two TDM signals and a single OFDM signal, a receiver processes the differently modulated signals to generate separate demodulated signals that are then combined to form a single combined signal for further processing (e.g., decoding). In one embodiment, the receiver applies a maximal ratio combining (MRC) technique to generate a single optimal ratio combined signal from the differently modulated signals. By combining the differently modulated signals using an MRC technique, the adverse affects of noise related to inter-symbol interference in the individual signals can be reduced and the complexity of hardware in the receiver can be reduced.
Patent CA-2326441-A1 (CA)
Title: Process for purification of a cephalosporin derivative
Inventor: STURM HUBERT
IPC: C07D501/14
Filed: 1999-03-31
Abstract: A process for the purification of cefixime via a novel tert.octylamine salt of a cefixime intermediate which may be crystalline and which may be produced in a one pot reaction from 7-amino-3-vinyl-ceph-3-em-4-carboxylic acid.
Patent CA-2328114-A1 (CA)
Title: Hair colorant composition
Inventor: HICKLING MAURICE RAYMOND
IPC: A61K8/35
Filed: 2000-12-12
Abstract: Hair colorant compositions having improved wash fastness contain phytantriol, a dis-persing agent, and a hair dye.
Patent CA-2336311-A1 (CA)
Title: A high resolution radon transform seismic traces processing
Inventor: HERRMANN PHILIPPE CHARLES
IPC: G01V1/28
Filed: 2000-05-03
Abstract: A method of performing a processing on seismic traces comprising the step of performing a constrained High Resolution Radon decomposition at various frequencies, wherein the Radon decomposition at a given frequency is constrained as a function of the Radon decomposition at least a lower frequency.
Patent CA-2336735-A1 (CA)
Inventor: MERCURI ROBERT ANGELO
IPC: H01M8/02
Filed: 1999-07-06
Abstract: Flexible graphite sheet (10) having embedded ceramic fibers (3a) extending from its opposite planar surfaces (22, 24) into the sheet to provide permeability of the sheet to gases so that it is useful as an electrode in electrochemical fuel cells.
Patent CA-2337216-A1 (CA)
Inventor: WEBER TERESA M
IPC: A61Q15/00
Filed: 1999-08-05
Abstract: The present invention embraces antiperspirant compositions with improved efficacy. These compositions contain an aluminum or aluminum-zirconium antiperspirant salt and a water soluble calcium salt, both of which are suspended in a dermatologically acceptacle anhydrous carrier vehicle. The present invention also embraces a method of inhibiting or reducing perspiration by topically applying an effective amount of such an antiperspirant composition to the skin.
Patent CA-2337620-A1 (CA)
Title: Manufacture of a cyclic acid
Inventor: VEITS JOACHIM
IPC: C07D491/048
Filed: 2001-02-21
Abstract: A process for the production of 2-oxo-1,3-dibenzyl-4,5-imidazolidinedicarboxylic acid and, respectively, of 2-oxo-1,3-dibenzyl-4,5-imidazolidinedicarboxylic acid anhydride starting from a meso-2,3-bis(benzylamino)succinic acid dialkali metal salt comprises reacting the meso-2,3-bis(benzylamino)succinic acid dialkali metal salt with phenyl chloroformate in a monophasic solvent system consisting of an about 2:1 to 1:1 mixture of a water-miscible ether and aqueous alkali metal hydroxide solution at a temperature not exceeding about 40°C, and converting the resulting 2-oxo-1,3-dibenzyl-cis-4,5-imidazolidinedicarboxylic acid dialkali metal salt by acidification into the desired 2-oxo-1,3-dibenzyl-cis-4,5-imidazolidinedicarboxylic acid and isolating this or converting this by heating with acetic anhydride in an aromatic hydrocarbon as the organic solvent into the desired 2-oxo-1,3-dibenzyl-cis-4,5-imidazolidinedicarboxylic acid anhydride and isolating this. Each product is an important intermediate in the multi-stage process for the manufacture of biotin (vitamin H).
Patent CA-2339880-A1 (CA)
Title: Method and apparatus for precision laser surgery
Inventor: SCHIFFER STEVEN
IPC: A61N5/067
Filed: 1990-02-06
Abstract: A system for effecting precision laser surgery includes an intensified surgical video microscope directed at the tissue to be operated upon and having zoom capability so that the camera may alternatively display easily recognizable landmarks with the option of enlarging, without the requirement of additional illumination or closer proximity to the target, any portion of the imaging field while still positioning the objective imaging lens at the same practical distance from the patient or tissues. The surgical microscope presents a microscopic image on a video screen in front of the surgeon.      Views may be generated using Moire interferometry by projecting a Ronchi ruling on the surface of the tissue information for contour tracking of the subject surface. Interior elements and interfaces of, for example, the eye are also sensed by a light beam and precisely located and mapped by a computer forming a part of the device. The imaging system of the invention enables the surgeon to have before him abundant visual information on the video screen with indication of precisely where, in three dimensions, a focused surgical laser beam is directed at any time. Templates are generated from the experience of successful surgeries of the type contemplated, then surgeries are executed by accurately superposing, modifying the template to the particular needs and specifications required, and then activating the surgical templates, which will carry successive firings of the surgical laser in accordance with a precise programmed path determined by prior inspection and analysis assisted by the accumulated library of experience. The system also includes a real time tracking system for following the movements of the subject tissue, for example an eye during surgery.
Patent CA-2342019-A1 (CA)
Title: Method for producing saturated polymers and saturated or unsaturated blends
Inventor: FOGG DERYN
IPC: C08F8/04
Filed: 2001-03-26
Abstract: The present invention provides a method to improve the efficiency of ROMP-hydrogenation and ROMP-hydrogenolysis processes. Thus the invention provides a means for increasing the rate of reaction of the hydrogenation step of the ROMP-hydrogenation process via the addition of non-inert solvent such as methanol. The present invention permits multiple cycles of ROMP-hydrogenation-ROMP and ROMP-hydrogenolysis-ROMP without additional catalyst, thus allowing the formation of tailored polymer blends in a 'one-pot' reaction. Moreover, the ROMP-hydrogenation reactions of the present invention may be carried out at pressures as low as atmospheric pressure.
Patent CA-2342029-A1 (CA)
Title: Single layer high performance catalyst
Inventor: VOTSMEIER MARTIN
IPC: B01D53/94
Filed: 2001-03-26
Abstract: The invention relates to a single layer high performance catalyst containing on an inert carrier body a catalytic coating comprising platinum, rhodium and various oxide mate-rials. The catalyst is characterised in that the catalytic coating comprises at least one first support material selected from the group comprising a first active alumina, ceria rich ceria/zirconia mixed oxide and a zirconia component, said at least one first support material being catalysed with a first part of the total platinum amount of the catalyst, and a second support material catalysed with the second part of the total platinum amount and with rhodium said second support material being a second active alumina.
Patent CA-2342033-A1 (CA)
Title: Method and apparatus for increasing the efficiency of a multi-stage compressor
Inventor: INGISTOV STEVE
IPC: F04D17/12
Filed: 2001-03-23
Abstract: A multi-stage compressor, including a system for the injection of a cooling liquid into at least a portion of the compressor stages to increase the efficiency of the multi-stage compressor by reducing the temperature of the compressed gas produced in the multi-stage compressor. A cleaning solution may also be injected through nozzles used for the injection of the cooling liquid.
Patent CA-2342922-A1 (CA)
Inventor: WRIGHT NIGEL
IPC: F16L55/165
Filed: 1999-09-13
Abstract: A method of lining a pipeline (3) uses a thermoplastic liner pipe (1) which incorporates a crosslinking agent. The method comprises deforming the round liner pipe (1) into a geometrical shape having a substantially smaller overa ll dimension, inserting the deformed liner pipe (1) into the existing pipe (3),  and reforming theliner pipe (1) to a round shape. Finally, the liner pipe (1 ) is expanded on to the internal surface of the existing pipe (3), and crosslinked.
Patent CA-2347289-A1 (CA)
Title: Rotatable label system and method of constructing same
Inventor: KEY STEPHEN
IPC: G09F11/23
Filed: 1999-10-15
Abstract: A system and method are disclosed for attaching a radially expandable rotatable label (100) to a container (120). The expandable rotatable label is radially expanded and then longitudinally advanced over a container. After being expanded, the expanded label is permitted to contract into a tight, rotatable relationship with the container. The expandable rotatable label is preferably adapted with a transparent window portion (106) to permit viewing of indicia (144) disposed underneath the rotatable label. By rotating the expandable label relative to the container, a user can view written indicia disposed on the container or on an inner label affixed to the container.
Patent CA-2352161-A1 (CA)
Inventor: WILSON MARTIN
IPC: B43L21/00
Filed: 2000-02-04
Abstract: A creativity center (1) includes a base (100) portion that is connected by a hinge (200) to a board (300) that has opposed drawing/design surfaces on which artistic designs and markings can be made. The board (300) can rotate with respect to the base (100) via the hinge (200) and can be slid with respect to the hinge (200) such that the board (300) can be repeatedly flipped over and slid between two opposed "use" positions with respect to the base. Thus, an opposed drawing/design surface (311, 321) configured in a "use" position is presented to a user each time the board is flipped over. An eraser (400) can be located on either the base or on the hinge to automatically remove designs or markings located on the board (300) when the board is slid through the hinge. In addition, the base can include a storage compartment for storing art supplies.
Patent CA-2352668-A1 (CA)
Title: Chewing gum having extended flavor duration and methods for making same
Inventor: BUNCZEK MICHAEL T
IPC: A23L27/00
Filed: 1999-12-08
Abstract: Chewing gum having extended flavor release and methods of manufacturing same are provided. Additionally, the chewing gum may have a modified release rate for other of the components. The chewing gum includes a water soluble portion and a water insoluble portion.  The chewing gum includes a liquid preblend of a base ingredient and a flavor.
Patent CA-2353091-A1 (CA)
Inventor: LUNIEWSKI ROBERT
IPC: B01F33/40
Filed: 1999-12-01
Abstract: A system for continuously processing PTFE by irradiation and grinding includes a processing vessel having first and second horizontally adjacent agitators in first and second transversely adjacent vessel portions.  The bottom of the vessel has a step between the portions whereat heated air is injected for agitating and grinding the PTFE.
Patent CA-2353730-A1 (CA)
Inventor: RIXEN WOLFGANG
IPC: E04B2/76
Filed: 1999-12-06
Abstract: The invention relates to a hollow profile bar (10), especially consisting of extruded metal comprising a tubular wall (11) which is equally thick all around. The tubular wall (11) is provided with protruding outer webs (12) which are distributed equally over the outer circumference. Pairs of said outer webs (12) form undercut casing grooves (14) with the sidewalls (13) the thickness of a radial protuberance (15) of the outer webs (12) which protrudes from the tubular wall (11) being almost equal to the thickness (16) of the tubular wall (11). The aim of the invention is to tightly pack profile bars that are to be connected in a cross-section of a hollow profile bar (10). To this end, the hollow profile bar is configured in such a way that the anticlinal axes (17, 17') of the side walls (13) of one outer web (12) intersect between said outer web (12) and the axis of the bar (18).
Patent CA-2356956-A1 (CA)
Inventor: BUAN ANGELES LILLIAN
IPC: C08J5/00
Filed: 2000-10-06
Abstract: L'invention concerne une composition destinée à un ballonnet d'infusion médical. Cette composition contient: (1) un polyisoprène, (2) entre 0,5 et 3,0 parts d'un catalyseur peroxyde organique pour 100 parts en poids du caoutchouc, (3) une charge et (4) entre 0,6 et 3,0 parts d'un antioxydant pour 100 parts en poids du caoutchouc.
Patent CA-2357247-A1 (CA)
Title: Separator for solid polymer type fuel cell and process for producing the same
Inventor: SHIBATA TAKASHI
IPC: H01B1/12
Filed: 2001-09-12
Abstract: A separator for solid polymer-type fuel cell is produced by molding the resin composition which comprises an electroconductive agent and a radical-polymerizable thermosetting resin system by a resin molding method. The electroconductive agent comprises a carbon powder. The radical-polymerizable thermosetting resin system may comprise a radical-polymerizable resin (especially, a vinyl ester-series resin) and a radical-polymerizable diluent. It is preferred that the double bond equivalent of the radical-polymerizable resin may about 200 to 1,000 and that the hardened radical-polymerizable thermosetting resin system has a glass transition temperature of 120 °C or more. The weight ratio of the electroconductive agent to the radical-polymerizable thermosetting resin system may be about 55/45 to 95/5.      Such a separator is suitable for fuel cell (in particular, solid polymer-type fuel cell), and can be produced with advantageous for commercial production.
Patent CA-2357777-A1 (CA)
Title: Guide d'onde dope au tantale et son procede de fabrication
Inventor: TENNENT CHRISTINE L
IPC: C03B37/014
Filed: 1999-12-09
Abstract: La présente invention porte sur des guides d'onde optiques à faible perte dopés au tantale et sur leurs procédés de fabrication. Une suie de SiO¿2? est dopée au Ta¿2?O¿5? de façon à obtenir une ébauche qui est consolidée dans des conditions appropriées pour prévenir la cristallisation dans les guides d'onde contenant Ta¿2?O¿5?-SiO¿2?. La tige obtenue est alors étirée sous forme d'une fibre optique ou recouverte d'une gaine et ensuite étirée sous forme d'une fibre optique. La consolidation à haute température sous atmosphère gazeuse ou à vide est utilisée pour fritter et vitrifier l'ébauche avant l'étirage afin de produire une fibre optique de guide d'onde à faible perte.
Patent CA-2357885-A1 (CA)
Title: Safety harness with front d ring
Inventor: JOHNSON PETER
IPC: A62B35/00
Filed: 2001-09-28
Abstract: A safety harness with a front D-ring includes an upper body portion and a lower body portion. A front D-ring is positioned at a front of the upper body portion where a first shoulder strap and a second shoulder strap cross. A single length of webbing is used to form a first end of the first shoulder strap, form a first end of the second shoulder strap and connect the front D-ring in a fixed position relative to the first shoulder strap and the second shoulder strap. The single length of webbing is wrapped around a cross-piece of the front D-ring and the first end of the first shoulder strap is formed from a first loop of the single length of webbing sewn together and the second end of the second shoulder strap is formed from a second loop of the single length of webbing sewn together.
Patent CA-2358178-A1 (CA)
Title: Gaming machine with visual and audio indicia changed over time
Inventor: JOSHI SHRIDHAR P
IPC: G07F17/32
Filed: 2001-10-01
Abstract: A gaming machine having features for increasing player appeal is set forth. The machine generally includes a processor, a display, and a memory device.  The processor monitors time signals from a clock and randomly selects one of a plurality of outcomes of the gaming machine in response to a wager amount. The display displays visual elements to be viewed by the player. The memory device is coupled to the processor and stores at least two data sets for producing at least two different types of visual elements. The processor selects one of at least two data sets in response to the occurrence of a predetermined time, a completion of a bonus game, or a number of plays by players of said game. The gaming machine may also include audio speakers and audio elements that replace the changing visual elements, or audio and video elements can be displayed in unison as a function of the time.