baber/WOPTO huggingface dataset:
Patent CA-2138055-A1 (CA)
Title: Fluid treatment process
Inventor: MILLER JOHN D
IPC: C02F1/44
Filed: 1994-12-14
Abstract: The present invention provides a method of treating wastewater containing particulate matter and free oil, which  method  comprises  removing  free  oil  from  the wastewater,  passing  the  wastewater  through  a  first filtration medium having an effective pore rating of about 200 µm or  less,  subjecting the wastewater to dynamic filtration utilizing a second filtration medium having an effective pore rating of about 5 µm or less, and contacting the wastewater with an adsorbent bed to form a purified water stream.   The present invention also provides an apparatus which can be used to carry out the present inventive method.
Patent CA-2138521-A1 (CA)
Title: Ethynyl alanine amino diol compounds having a piperazinyl-terminated group or a piperazinyl-alkylamino-terminated group for treatment of hypertension
Inventor: HANSON GUNNAR J
IPC: A61P27/02
Filed: 1993-08-10
Abstract: Compounds characterized generally as ethynyl alanine amino diol compounds having a piperazinyl-terminated or a piper-azinyl-alkylamino-terminated group and derivatives thereof are useful as renin inhibitors for the treatment of hypertension. Com-pounds of particular interest are those of formula (I), wherein A is selected from CO and SO2; wherein X is selected from oxy-gen atom and methylene; wherein G is a piperazinyl group or is a piperazinyl-containing group of formula (II), wherein B is a piperazinyl group or a alkylen-bridged-piperazinyl group; wherein R1 is selected from hydrido, methyl, ethyl, isopropyl and n-propyl; wherein R2 is phenylmethyl; wherein each of R3 and R5 is hydrido; wherein R4 is selected from formula (III), wherein V is selected from hydrido and methyl; wherein R6 is cyclohexylmethyl; wherein R7 is selected from isobutyl, cyc-lopropyl and cyclopropylmethyl; wherein q is a number selected from zero through three, inclusive; and wherein n is a num-ber selected from zero through three, inclusive; or a pharmaceutically-acceptable salt thereof.
Patent CA-2139018-A1 (CA)
Inventor: AUBERT LUCIEN
IPC: A61K8/00
Filed: 1994-12-23
Abstract: L'invention se rapporte à une utilisation, dans une composition cosmétique ou dermatologique contenant au moins un actif antivieillissement ayant un effet irritant, dans un milieu cosmétiquement ou dermatologiquement acceptable, comme agent apaisant de l'effet irritant, d'un céramide de formule (I) suivante: <IMG> (I) ou A représente -CH2-, - ou -CH=CH-; <IMG> R1 représente une chaîne alkyle linéaire ou ramifiée, saturée ou insaturée, en C10 à C26; R2 représente une chaîne alkyle linéaire ou ramifiée, saturée ou insaturée, en C12 à C32; R3 représente H ou -CO-CHOH-R2; n représente 0 ou 1.
Patent CA-2148154-A1 (CA)
Inventor: FRIGO NICHOLAS J
IPC: H04B10/00
Filed: 1995-04-28
Abstract: An optical network unit for use in a switched passive  optical network utilizes the high contrast ratio between the energies of optical ringing signals and optical interrogation signals.  The receiver of the optical network unit is operated in a low power mode of operation until communication between the central office and subscriber is desired.  In the low power mode, a photodetector runs in a photovoltaic mode to charge a sensing capacitor.  An optical ringing  signal  originating  in  the  central  office when communication via the ONU is desired creates a voltage signal which is detected by a comparator circuit.  When the comparator triggers, it switches on the receiver and directs the output of the photodiode to the receiver for processing of  the  communication  signals  received  therefrom.    On completion of the call, the ONU is returned to the low power state.   When an off-hook signal  is  detected,  the ONU interrupts the interrogation signals, thereby indicating to the central office that subscriber initiated communication via the ONU is desired.
Patent CA-2148230-A1 (CA)
Title: Control of plungers in glassware forming machines
Inventor: PLATER NEIL JAMES
IPC: G05D16/20
Filed: 1994-03-28
Abstract: A control system is described for controlling the movement of a plunger for use in forming parisons in a glassware manufacturing machine in which the plunger is driven between first and second positions by a pneumatic piston and cylinder device in which pressure sensors sense the pressure on opposite sides of the piston. An electronic signal processing system incorporates a memory in which a motion profile and force limits are stored and which receives through each cycle a feedback signal relating to the transducer position of the plunger and from the pressure sensors the pressure on opposite sides of the piston and which produces control signals for a solenoid driven proportional pneumatic valve in accordance with a repetitive algorithm which takes account of (a) the displacement of the plunger from the motion profile, (b) the velocity of the plunger as derived from the rate of change of its position, and (c) the force exerted on the plunger as derived from the pressure difference across the piston. In this way the valve supplies air to the piston and cylinder device to cause the plunger to move from rest at a first position, for a first period of time in a manner limited by the motion profile. Thereafter a first force limit is applied to the plunger. Movement during a second period of time is controlled in a manner limited by the reduction from the first force limit to a second force limit and during a third period of time is limited by the second force limit.
Patent CA-2154262-A1 (CA)
Title: Neon illuminating apparatus
Inventor: GONZALEZ JAIME DE JESUS
IPC: B60Q1/50
Filed: 1993-10-18
Abstract: A new and improved neon illumination apparatus (9a) and method for illuminating large and small areas, such as the exterior and interior of a motor vehicle (11a) and the like, with glowing bright light. The apparatus (9a) includes an elongated transparent tube holder (22a) for receiving an elongated neon bulb (13a) and a high voltage power distribution system (20a). The high voltage power distribution system (20a) is encapsulated with an end cap (24a) adapted to be secured to the tube holder member (22a) for insulating and sealing the neon bulb (13a) and distribution system (20a) from the exterior environment and for forming a unitary illuminating device. The end cap (24a) includes an electrical input arrangement adapted to be coupled to a conventional low voltage, direct current source, such as the low voltage electrical system of a vehicle (11a).
Patent CA-2157597-A1 (CA)
Title: Cartridges, devices and methods for dispensing liquids
Inventor: ARMSTRONG JOHN C
IPC: A61M11/00
Filed: 1994-03-08
Abstract: A cartridge (10) for providing a liquid to be dispensed and devices for and methods of dispensing a liquid from such cartridges are disclosed. Such cartridges include a container (11) having the liquid (2) to be dispensed disposed therein, the container including a pierceable section (4) and a piercer (6) capable of piercing the pierceable section. The piercer is internal to the container for the liquid thereby making it possible to maintain the sterility of the liquid until the moment of use.
Patent CA-2158625-A1 (CA)
Title: Apparatus and method of counting, inspecting and stacking planar food products
Inventor: PLEAKE TODD D
IPC: B65B57/10
Filed: 1995-09-19
Abstract: An apparatus for counting, inspecting, and stacking flexible, generally planar food products such as tortillas, or the like. The apparatus has an inclined infeed conveyor with adjustable alignment guides thereon to adjust the lateral position of each tortilla as it moves to a transit conveyor. Sensors mounted on the transit conveyor count the tortillas and inspect the size and shape of the tortillas to detect any defective tortillas moving along the transit conveyor. At the end of the transit conveyor, an arcuate-shaped trajectory guide bends the tortilla into an arcuate shape as the tortilla leaves the trajectory guide and flies through a known flight trajectory to a stacking mechanism. The arcuate shape allows the leading edge of the tortilla to resist bending or folding. A rejection mechanism positioned between the end of the transit conveyor and the trajectory guide redirects any rejected tortillas detected by the sensors downward away from the trajectory guide. A stacking mechanism receives the tortillas at the end of the flight trajectory. A shaker shakes the stacking mechanism and jostles the stack of tortillas to form a tight, aligned stack. A movable stack plate supports the stack of tortillas in the stacking mechanism and moves downward incrementally as tortillas are stacked into the stacking mechanism so the flight trajectory of each tortilla is approximately the same. The stacking plate has a lowered position that deposits a stack of tortillas on a baseplate, and a stack removal device moves the stack of tortillas away from the stacking assembly to a discharge conveyor.
Patent CA-2161134-A1 (CA)
Title: Method and electronic device for adrenergically stimulating the sympathetic system with respect to the venous media
Inventor: KLOTZ ANTOINE
IPC: A61N1/36
Filed: 1994-04-20
Abstract: The device includes means for generating electric pulses  between  at  least  two  electrodes  (2,  3,  4) appropriately disposed on the body of the patient,  the current,  the voltage,  the waveform and the frequency of the electric pulses being variable.      It also includes means for measuring the impedance between the electrodes (2, 3, 4).      Application  to  treatment  of  disorders  of  the vascular system and venous/lymphatic stagnation.
Patent CA-2162465-A1 (CA)
Title: Flow-through bioreactor with grooves for cell retention
Inventor: SANDSTROM CRAIG
IPC: C12N5/0789
Filed: 1995-03-03
Abstract: The  invention  is  a  flow-through  bioreactor  for  the retention and culture of cells in perfused media.   The bioreactor is a generally rectangular vessel with inlet and outlet ports in the lid allowing for media flow along the longitudinal axis of the vessel.  The inner surface of the bottom wall of the bioreactor has a plurality of generally rectangular grooves having a length, a depth, and a width. The grooves are positioned in the bottom wall such that their length is transverse to the longitudinal axis of the vessel,  allowing  media  flow  across  the  width  of  the grooves.    Cells  settle  into  the  grooves,  where  they proliferate and differentiate, without entering the bulk flow of media through the vessel, thus avoiding loss of cells due to media flow.   The invention also provides a method for the perfusion culture of hematopoietic cells whereby a suspension of either unselected hematopoietic mononuclear cells or CD34+ selected cells is placed in the bioreactor  and  cultured  without  loss  of  non-adherent stem/progenitor cells.  Various cytokines can be added to the culture medium such that the cells in the grooves form colony-forming units (CFU-GM, BFU-E, CFU-Mix),  long-term culture  initiating  cells  (LTC-IC),  and  granulocytic precursors   (blast  cells,   promyelocytes,   myelocytes, metamyelocytes).
Patent CA-2165135-A1 (CA)
Title: Water-blown polyurethane sealing devices and compositions for producing same
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/76
Filed: 1995-12-13
Abstract: Disclosed as a particular isocyanate prepolymer composition particularly suitable for use in polyurethane compositions having particular applicability for producing microcellular molded polyurethane articles particularly suitable for use as sealing devices. In particular, the isocyanate prepolymer composition is the result of reacting an isocyanate blend (a) having (i) 0 to 10 pbw 2,4'-diphenylmethane diisocyanate; (ii) 40 to 90 pbw 4,4'-diphenylmethane diisocyanate; (iii) 1 to 10 pbw 3-ring oligomers of polymethylene polyphenyl polyisocyanate; (iv) 1 to 20 pbw of n-ring oligomers of polymethylene polyphenyl polyisocyanate (n being greater than 3); and (v) 1 to 10 pbw of a mixture of uretonimine with from 5 to 50 parts by weight of a propoxylated propylene glycol (b) having a number average molecular weight of between 2000 and 6000, and a hydroxyl number of between 10 to 75. The resulting isocyanate prepolymer (I) has a free NCO of from 20 to 30 and a viscosity of from 50 to 500 cPs.
Patent CA-2166488-A1 (CA)
Inventor: MARRA MARIAN N
IPC: A61P31/04
Filed: 1994-07-01
Abstract: L'invention se rapporte à un procédé de production d'une protéine non glycosylée bactéricide et augmentant la perméabilité, au moyen d'une cellule bactérienne à Gram négatif, ce procédé consistant à transférer la cellule avec un vecteur codant la protéine bactéricide/augmentant la perméabilité; à mettre la cellule ainsi transfectée en culture dans des conditions permettant de produire ladite protéine non glycosylée dans la cellule; et à récupérer de la cellule la protéine ainsi produite. Enfin, l'invention se rapporte à la protéine non glycosylée bactéricide/augmentant la perméabilité produite selon le procédé de cette invention.
Patent CA-2167145-A1 (CA)
Inventor: BUCKLER STUART W
IPC: A01D34/82
Filed: 1996-01-12
Abstract: The present invention provides a brush cutter for use in cutting small trees, shrubs and bushes to the ground. The brush cutter is mounted on a wheeled frame for movement over the ground and can cut brush to ground level. The brush cutter comprises a frame, a drive motor mounted on the frame, a substantially horizontal cutting blade for cutting brush, transmission means for communicating rotational power from the drive motor to the cutting blade, a push handle connected to the frame for guiding the frame in movement across ground to be cleared of brush, wheels for supporting the frame for movement across the ground, and a retractable cutting blade cover to enclose the cutting blade.
Patent CA-2172814-A1 (CA)
Title: Convertible Top Bow and Cover Attachment
Inventor: BOARDMAN ROBERT A
IPC: B60J7/12
Filed: 1994-10-17
Abstract: A convertible top (22) comprises a frame having a header (28) and three transverse bows (30, 32, 34), a fabric cover (36) for the frame, side stay pads (118, 120), a panel (122) containing a backlite (24), and an interior headliner (38). The header (28) and the #2, #3 and #4 bows (30, 32, 34) have elongated extrusions (58, 30, 32, 34) with transverse channels (76, 80, 60, 64, 68, 70, 84, 90, 94) extending along their surfaces. The #4 bow includes an extra transverse channel (86). The fabric cover (36) is initially attached to the header (28), The fabric cover (34), the headliner (38) and the stay pads (118, 120) all have transverse resilient attachment strips (124, 126) adjacent the header (58) and/or each bow (30, 32, 34) which are inserted into the bow channels (76, 80, 60, 64, 68, 70, 84, 90, 94) to mount them on the top frame. The upper edge of the backlite (24) also has a mounting strip (124) received in the extra channel (86) of the #4 bow. The attachment strips (124, 126) each have an arrow-shaped cross section including a wide arrow head (132, 138) that is compressible for insertion through a narrow entry slot (e.g. 60a) into a channel (e.g. 60). Locating stops (158) are provided in each channel to positively locate the attachment strips on the bows.
Patent CA-2174563-A1 (CA)
Inventor: BOGDAN EUGENE A
IPC: C21B3/04
Filed: 1996-04-19
Abstract: A method of recovering steel plant waste revert materials including blast furnace flue dust and sludges involves mixing the revert materials with water to provide a total moisture content of about 14-20 % by weight, then adding Portland cement as a sole binder, mixing, and, when the water content is limited to about 18 to 20%, casting the mixture onto the ground in the form of a slab or, when the water content is limited to about 14 to 16% and an accelerator for curing the cement is used, casting the mixture onto a conveyor in the form of preformed streams, curing the cast mixture and breaking it up to provide 1/2 inch to 5 inch agglomerate particles that can be recycled to the blast furnace.
Patent CA-2178929-A1 (CA)
Title: Toggle-action dispensing closure
Inventor: LAY DIETER
IPC: B65D47/20
Filed: 1994-08-23
Abstract: A toggle-action container dispensing closure (20) is provided for manipulation between a closed, non-dispensing orienta-tion and an open, dispensing orientation. The closure (20) includes an actuator (60) mounted on a body (24) secured to the con-tainer.  The actuator (60) is tiltable be-tween a closed position and an open posi-tion. The body (24) has a severable abut-ment (110) under the actuator (60). The ac-tuator (60) has a shearing wall (140) con-fronting the abutment (110). The actuator (60) includes a depending structure defin-ing a pair of spaced-apart retaining surfaces (152) for sliding into engagement with the abutment (110) when the actuator (60) is subjected to at least a predetermined force to shear the abutment (110) whereby the sheared off abutment (110) is gripped be-tween the retaining surfaces (152).
Patent CA-2179122-A1 (CA)
Title: Anti-backoff removable container closure
Inventor: DOBBS DOUGLAS B
IPC: B65B7/00
Filed: 1996-06-13
Abstract: An anti-backoff, removable closure for connecting a manually actuated liquid dispenser to a container includes a closure cap having internal threads for mating engagement with similar threads on the outside of the container neck finish, both the cap and the neckfinish having mutually engageable ratchet teeth mechanically retaining the closure to the container. The teeth inside the cap each have a trailing face lying in a plane sloping in a loosening direction of the cap relative to the central axis of the cap for producing a camming action between the cap teeth and the neck finish teeth, tending to cam the cap off the container in response to closure unthreading rotation.
Patent CA-2180502-A1 (CA)
Inventor: CHEVALIER ALAIN
IPC: F02K7/10
Filed: 1996-07-04
Abstract: Selon l'invention, le statoréacteur comprend un corps de statoréacteur (5) comportant une portion de chambre de combustion (6) et une portion de tuyère d'échappement (7), et présentant, au voisinage de la zone de transition (8) entre la chambre de combustion (6) et la tuyère d'échappement (7), une géométrie évolutive passant progressivement d'une section longitudinale convergente puis divergente, pour des vitesses correspondant à un nombre de Mach faible, à une section longitudinale au moins sensiblement constante puis divergente pour des vitesses correspondant à un nombre de Mach élevé.
Patent CA-2181131-A1 (CA)
Title: Chemiluminescent analytical method
Inventor: SUMMERS MALCOLM ROBERT
IPC: G01N33/76
Filed: 1996-07-12
Abstract: A chemiluminescent analytical method which comprises using a suitable catalyst in a reaction with luminol or a substituted luminol and a perborate in an aqueous solvent and detecting and measuring luminescence produced by the reaction is described. In the method, the aqueous solvent comprises a non-luminescent chelating agent for chelation of an electron-deficient boron atom in the perborate.
Patent CA-2182638-A1 (CA)
Title: Foam Sock Applicator
Inventor: SMITH ROBERT E JR
IPC: A01M21/04
Filed: 1996-08-02
Abstract: A foam marking apparatus and method for applying foam to both pre-emergence and post-emergence crops in order to demark the boundaries of a spray application.  The foam marking apparatus includes a foam generating system, a distribution line, and a foam sock applicator.  The foam sock applicator includes a body having at least one opening and a flexible finger which aids in the application of the foam.
Patent CA-2186024-A1 (CA)
Inventor: PEROTTO ALDO
IPC: F02P5/04
Filed: 1995-06-13
Abstract: A control system for an engine adapted to operate either with gasoline injection or with methane or LPG injection, comprises a main electronic control unit (3) for controlling the gasoline injectors (1) and the ignition system (5) and an auxiliary electronic control unit (6) for controlling the mode of operation of the engine and the methane or LPG injectors (2). The auxiliary control unit (6) is further adapted to modify signals (9) representative of the angular position of the engine shaft which are to be sent to the main electronic control unit (3) in order to obtain an ignition adapted to the mode of operation with methane or LPG.
Patent CA-2186509-A1 (CA)
Title: Composition and process for detackifing paint
Inventor: BELECK SCOTT J
IPC: C08L61/24
Filed: 1995-03-28
Abstract: Melamine-formaldehyde resin dispersions containing more free formaldehyde than is desirable for health and/or pollution reasons can be treated with diketo reagents or their nitrogen analogs to reduce the free formaldehyde content while not diminishing, and in some cases even enhancing, the ability of the dispersions to detackify paint.  Preferably, the resin dispersions are also treated with urea, which allows considerably less acetoacetamide to be used to achieve the same amount of formaldehyde reduction.
Patent CA-2187775-A1 (CA)
Title: Method for molecular staging of prostate cancer
Inventor: KATZ AARON E
IPC: C12Q1/6886
Filed: 1995-04-14
Abstract: A method for enhancing the detection of prostate specific antigen in a biological sample comprising (a) extracting mRNA from the sample (b) contacting the mRNA from step (a) with reverse transcriptase under conditions allowing for the production of cDNA, (c) contacting the cDNA from step (b) with a pair of reverse transcriptase polymerase chain reaction primers capable of specifically hybridizing with DNA encoding prostate specific antigen wherein one such primer is an oligonucleotide of 12 to 30 nucleotides in length and comprises the sequence 5-CACCCATCCTA-3' and wherein the second such primer is an oligonucleotide of 12 to 30 nucleotides in length and comprises the seqnence 5'-TCCAGCCACGAC-3'; and wherein at least one of the primers is covalently linked to a modified digoxigenin molecule and under conditions allowing for extension of the primers; and (d) detecting the resulting amplified DNA.
Patent CA-2188252-A1 (CA)
Title: Ether compound and use thereof
Inventor: SHUTO AKIRA
IPC: A01N43/56
Filed: 1995-04-19
Abstract: A novel ether compound represented by general formula (P-1) and a pestcontrolling agent containing the same as the active ingredient, wherein R1, R2 and R3 represent each hydrogen, etc.; A represents a group represented by general formula (II); B represents a group represented by general formula (III) and X represents oxygen or sulfur.
Patent CA-2193507-A1 (CA)
Inventor: GROSSPIETSCH JOHN
IPC: G05F3/24
Filed: 1996-03-26
Abstract: A low power regenerative feedback device (301) and method automatically increases bias current during positive large-signal slewing, enabling output to change faster. The device includes a voltage transforming unit (302), adaptive regenerative feedback circuitry (304) and an output stage (309). When the device is not in a positive slew, bias currents are unchanged, providing a low standby current. Since regenerative feedback is internal and automatic to the device, current is increased only for the device driving an active column of an LCD panel. Thus, the present invention is power efficient. In addition, the AC response of the device is preserved because the device utilizes a regenerative feedback circuit (304) that does not add appreciable excess phase shift. The device achieves an output that switches readily from positive supply to negative supply.