baber/WOPTO huggingface dataset:
Patent CA-2105523-A1 (CA)
Inventor: THORNE BARBARA L
IPC: E04B1/72
Filed: 1993-09-03
Abstract: A system for termite detection and control is provided by a subterranean bait station having a perforated outer housing permanently implanted in the terrain below ground level, and a perforated cartridge removably received within the housing. The openings in the housing and the cartridge are in alignment with each other when the cartridge is fully received within the housing in its operational position. The cartridge received within the housing will initially contain a non-toxic bait material for diagnosing or assessing the level of a termite infestation; the bait cartridge is periodically removed from the housing to inspect for termite activity. If termite activity is detected, the non-toxic bait cartridge is replaced in the housing with a correspondingly perforated pesticide-containing bait cartridge for extermination of termites. Removal, replacement and substitution of the non-toxic and pesticide containing cartridges does not disturb pre-existing termite foraging galleries as a result of the precise alignment of the openings of the housing and the removable, exchangeable cartridges. The system may also be used for above-ground termite detection and control by externally mounting an appropriately modified housing to an outer surface of any article to be monitored, such as a timber.
Patent CA-2105630-A1 (CA)
Title: Method of treating viral infections
Inventor: LIEBENBERG ROELOF W
IPC: A61K31/7028
Filed: 1993-09-07
Abstract: ABSTRACT            The  invention  provides  compounds,  substances  and compositions for the treatment of viral infections in human and  animal  subjects,   and  medicines  and medicaments comprising them.  Uses of such compounds, substances and compositions for the treatment of such viral infections, and for use in the preparation of substances  and  compositions  for  treating  viral infections,   in  particular  HIV  infections,   are disclosed.   Novel compounds, being 1,5-disubstituted pent-4-en-1-yne compounds are disclosed, with methods of  making  them,  and  methods  of  treating  viral infections in human or animal subjects.  The compounds can be represented by the general formula (1):
Patent CA-2106340-A1 (CA)
Title: Wall panel corner bead
Inventor: PITCHFORD LARRY
IPC: E04B1/68
Filed: 1993-09-16
Abstract: ABSTRACT OF THE DISCLOSURE      A corner bead strip for attachment to wall panels at panel corners includes a strip of flexible material of substantially uniform thickness, having an inward face for fitting against the wall panels,  and an outward face, and having two longitudinal edges, a longitudinal notch in the inward face to permit the strip to bend to fit a corner of any cross-sectional angle.  The notch may have either a V-shaped cross-section or a semi-circular cross-section.  The notch is preferably centrally located on the strip between  the  longitudinal  edges.    The  strip  of  material  is preferably formed of a plastic,  and the plastic is preferably polyvinyl chloride.  At least one of the two longitudinal edges is preferably beveled so that the outward face is narrowed relative to the inward face.
Patent CA-2108777-A1 (CA)
Inventor: LOMONOSSOFF GEORGE P
IPC: C12N7/01
Filed: 1992-04-02
Abstract: The invention relates to assembled particles of a plant virus containing a predetermined foreign peptide a part of the coat protein of the virus, and a method for their production. The foreign peptide is preferably a biologically functional peptide, the biological application of which requires or is enhanced by presentation of the peptide in association with a larger molecule or particle.
Patent CA-2109933-A1 (CA)
Title: Gravitational window shutter for hydro-pneumatic current flow harnessing system
Inventor: GORLOV ALEXANDER M
IPC: F03B13/12
Filed: 1992-02-14
Abstract: A gravitational window shutter in a water gate for a system for harnessing power from current flow or tidal movement in a body of water is disclosed. The gate (102) is formed with a door (104) for closing the port (103) through which the water may flow. The door (104) has a window (120) in an upper portion thereof which is closed by a rotatable shutter (122). The shutter (122) opens before the door ( 104), allowing a flow of water through the window ( 120), which reduces the drug on the door ( 104). The door (104) is then able to open more rapidly. A gravitational closure (132) causes the shutter (122) and door (104), to close. The gravitational closure is formed by a counterweight on the shutter (122). An improved configuration of the chambers is also dis-closed. The chambers (210) have an upper portion (217, 219) of a rectangular configuration with a larger volume to increase the volume of air flowing through the system, and a lower portion (216, 218) of a cylindrical configuration to reduce the hydraulic losses due to vortices during water inflow and outflow.
Patent CA-2112635-A1 (CA)
Inventor: TULLER BARRY E
IPC: A47L15/48
Filed: 1993-12-30
Abstract: A convection air inlet and suds control device is provided for a dishwasher.  The dishwasher has a washing chamber with a bottom wall, and a chimney extending through the bottom wall with opposite upper and lower ends positioned on opposite sides of the bottom wall.  A chimney cap is spaced in covering relation over the upper end of the chimney.  A container having an inner cup and an outer cup is mounted adjacent the bottom wall such that the inner cup surrounds the lower extension of the chimeny. The outer cup includes an opening such that air may flow by convection into the outer cup, into the inner cup and upwardly through the chimney into the washing chamber so as to dry the articles in the dishwasher.  In oversudsing conditions, the suds flow downwardly through the chimney for collection in the inner cup.          Excess suds filling the inner cup will spill over into the outer cup.  The inner cup and lower extension of the chimney cooperate to function as a valve.  When liquid deriving from condensing suds in the inner cup rises to a level above the lower end of the chimney, downward flow of suds into the inner cup and upward flow of air through the chimney is prevented.  As the liquid evaporates to a level below the lower end of the chimney, the flow of air and suds returns to normal.
Patent CA-2113849-A1 (CA)
Inventor: SCHIEL CHRISTIAN
IPC: D21F3/02
Filed: 1994-01-20
Abstract: Wet-press arrangement, in which the flexible press cover (18) of a shoe-press roll (7) picks up the web (2) to be dewatered at a first press point (5), directly from the wire (1) on which the web has been formed. The web then runs together with the press cover (18) through a second press point (8) which is designed as a felted and extended press nip. Thereafter, the web runs through a third press point (14), where it is transferred from the smooth envelope surface of the press cover (18) onto the smooth envelope surface of a press roll (15). The web then runs with the latter through a fourth press point (24), which is again designed as a felted and extended press nip. After this, the web (2) still follows the press roll (15) as far as a pick-up point. <IMAGE>
Patent CA-2119409-A1 (CA)
Title: Deposit cleaning composition for internal combustion engines
Inventor: PIERCE-RUHLAND G FREDERICK
IPC: C11D7/26
Filed: 1994-03-18
Abstract: It has been found that a composition comprising an alkoxy alcohol, an aliphatic alcohol, a liquid petroleum distillate, a liquid fatty acid, a volatile nitrogen base, polyisobutenyl aminoethylethanolamine, and water may be used as an engine deposit cleaner which removes air and fuel induction system deposits, valve deposits, and combustion chamber deposits. The inventive composition may be introduced into the engine in lieu of fuel, or in conjunction with fuel while the engine is operating.
Patent CA-2121048-A1 (CA)
Title: The preparation of 2,5-dihydroxyphenylacetic acid
Inventor: STAUDENMAIER HORST R
IPC: C12P7/42
Filed: 1992-09-25
Abstract: The invention concerns a new method of preparing, by fermentation, compounds of general formula (I) in which R1 is a hydrogen, fluorine, chlorine or bromine atom.
Patent CA-2121903-A1 (CA)
Title: Device for gripping and handling objects
Inventor: DE JONG DIRK
IPC: B25B9/00
Filed: 1992-08-11
Abstract: Device for gripping and handling objects (5) with a hole (8), such as compact discs. It comprises a carrier (2) to be placed above the object at the hole. Spring-loaded control means (10) extend through the carrier, which means can move gripping means (16) inwrds and outwards relative to the supporting face (3) of the carrier. This supporting face must be placed over the hole. Control means are present here in such a way that when the gripping means move out, they move towards each other. In this way the object can be gripped near the peripheral edge by the gripping means.
Patent CA-2122620-A1 (CA)
Inventor: MCCRACKEN ROBERT E
IPC: B27C5/10
Filed: 1992-11-09
Abstract: A portable electric router having a depth of cut adjustment mechainsm including an adjustment ring (26) which engages a screw thread on the motor housing (12) and rotationally engages the router base (20). The adjustment ring is formed as a split ring with radially directed projections (34, 36) adjacent opposite sides of the split. One of the projections (34) is formed with a camming surface (42) and a clamp lever (44) is provided with a camming surface (46) slidably engaging the projection camming surface. The projection with the camming surface is captured between the other projection and the clamp lever so that rotation of the clamp lever in a first direction forces the projections toward each other to clamp the adjustment ring to the motor housing and the base and rotation of the clamp lever in a second direction allows the projections to separate to release the adjustment ring.
Patent CA-2123322-A1 (CA)
Title: Apparatus for teaching or correcting the stance of a golfer
Inventor: DE KNIGHT RENE E
IPC: A63B69/36
Filed: 1993-09-24
Abstract: I A golfer's stance for correctly addressing a golf ball using different clubs is taught or improved by using a mat having a ball line on it with markings showing the different locations at which the ball should be put. The mut has on it either a single deta-chable strip or different sets of detachable or permanent strips. The or each strip indicates optimum stance lines with which the golfer's feet should be aligned when using a club of weight or number associated with the strip being used at any one time.
Patent CA-2130134-A1 (CA)
Title: Adhesion promoting additives and low temperature curing organosiloxane compositions containing same
Inventor: BILGRIEN CARL J
IPC: C08L83/07
Filed: 1994-08-15
Abstract: ADHESION PROMOTING ADDITIVES AND LOW TEMPERATURE CURING ORGANOSILOXANE COMPOSITIONS CONTAINING SAME                        ABSTRACT           Adhesion promoting additives for organosiloxane compositions that cure by a platinum-catalyzed hydrosilation reaction are reaction products of (1) an ethylenically unsaturated ether of a polyfunctional alcohol and (2) at least one silicon compound selected from (i) epoxy-substituted organosilicon compounds containing at least one hydrolyzable group per molecule and (ii) tetraalkyl ortho-silicates, also referred to tetraalkoxysilanes, where the reaction is conducted in the presence of a suitable catalyst such as an organotitanium compound.  The additive optionally includes a chelated organoaluminum compound.
Patent CA-2130983-A1 (CA)
Title: Artificial neural circuit apparatus
Inventor: SHIN JONG-HAN
IPC: G06F15/18
Filed: 1994-08-26
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed is an artificial neural circuit using a pulse coding such as a stochastic pulse coding or a noise feedback pulse coding, the circuit comprising a synapse circuit section for producing and absorbing a current signal proportional to a weight voltage signal upon an externally applied current signal being supplied;  a neuron body  circuit  section  for  spacio-temporally  integrating  output signal of the synapse circuit section to produce an analog voltage signal; and   an axon hillock circuit for converting the analog voltage signal into a pulse train using a predetermined reference signal.   The synapse circuit  section  including a first  input terminal for receiving a first reference voltage; a second input terminal for receiving a second reference voltage; a third input terminal for receiving a third reference voltage; a fourth terminal for receiving the weight voltage signal; a first transistor having drain and source connected to the first reference voltage and a junction point,  respectively,  and gate connected to the fourth input  terminal;  a  second  transistor  having  drain  and  source connected to the junction point and the second input terminal, respectively, and gate connected to the third input terminal; and a third transistor having drain and source connected respectively to the junction point and an output terminal of the synapse circuit section, and gate connected to an input terminal for receiving the externally applied current signal.
Patent CA-2131137-A1 (CA)
Title: High Power, Single-Frequency Tunable Laser
Inventor: ZIRNGIBL MARTIN
IPC: H01S5/00
Filed: 1994-08-30
Abstract: HIGH POWER, SINGLE-FREQUENCY TUNABLE LASER            ABSTRACT A monolithically integrated laser which is rapidly tunable over a wide optical frequency range comprises a frequency router formed in a semiconductive wafer defining a tuned cavity. A control circuit applies electrical energy to predetermined controllably transmissive waveguides connecting the frequency routing device with reflective elements defined in the wafer. This tunes the laser to a desired one of a plurality of optical frequencies. Application of such electrical energy creates frequency selective pathways through the wafer able to support selected lasing frequencies. Additional optical amplifiers are formed in the frequency router to create lasing action in a preselected pathway. This laser is economical to construct and is useful in high capacity, high speed optical communications networks.
Patent CA-2132664-A1 (CA)
Inventor: SHAW JERRY C
IPC: C09K8/60
Filed: 1994-09-22
Abstract: The process involves a well stimulation treatment of a hydrocarbon reservoir containing solid pyrobitumen. A strong oxidant, preferably sodium hypochlorite, is injected into the reservoir as an aqueous solution containing 5 wt. % or higher concentration of the oxidant. The oxidant is retained in contact with the formation for a predetermined retention period and the well is then backflowed or pumped to remove oxidation products. The permeability of the reservoir is improved, apparently by conversion of the solid pyrobitumen to removable gaseousand liquid products.
Patent CA-2133267-A1 (CA)
Title: Valve Control Unit for Hydraulic Actuator
Inventor: ONO TOMOAKI
IPC: E02F3/43
Filed: 1994-09-29
Abstract: A valve control unit includes a main hydraulic oil circuit and a pilot oil circuit. The main circuit includes a main pump, a main valve downstream from said main pump, and a hydraulic actuator downstream from said main valve. The pilot oil circuit circulates pressurized pilot oil to control the main valve and includes a pilot oil pump, an automatic control switching valve downstream from the pilot oil pump, amanual limit switching valve downstream from the pilot oil pump, a manual control switching valve downstream from the manual limit switching valve, and a pilot oil chamber downstream from said manual control switching valve. The pilot oil chamber is located near the main valve such that the flow of pressurized pilot oil moves the main valve.
Patent CA-2136334-A1 (CA)
Title: Seats for swings
Inventor: BRADY DAVID F
IPC: A47C7/16
Filed: 1993-05-21
Abstract: A seat for a child's swing is disclosed. The seat is of the type comprising a plate-like substantially rigid member (1) to bear the weight of a user sitting on the seat, and resilient polymeric material (2) secured to the plate-like member (1), the resilient po-lymeric material (2) extending beyond the outline of the plate-like member (1) to form a border (30) around the edges of the plate-like member, and forming a peripheral dependent skirt (40) of substantial thickness. To achieve greater safety in use, the border (30) includes a hinge-like portion of the resilient material (2), the plate-like member (1) in the region of the hinge-like portion is configured to provide room for the dependent skirt (40) to hinge beneath the plate-like member (1), and in an impact between the edge of the seat adjacent the hinge-like portion and an object, the skirt (40) is progressively deformed and forced to hinge inwards against the resilience of the hinge-like portion.
Patent CA-2137039-A1 (CA)
Title: Fuel supply control system for internal combustion engines
Inventor: KITAGAWA HIROSHI
IPC: B01D53/86
Filed: 1994-11-30
Abstract: A fuel supply control system for an internal combustion engine having a catalytic converter arranged in the exhaust system, includes an ECU which estimates a storage amount of oxygen stored in the catalytic converter, calculates a physical amount having correlation with a purification rate of the catalytic converter, based on the estimated storage amount of oxygen, and controls the air-fuel ratio of an air-fuel mixture to be supplied to the engine, based on the calculated physical amount.
Patent CA-2138278-A1 (CA)
Title: Method for controlling traffic in a communication network
Inventor: FISK DONALD
IPC: H04M3/36
Filed: 1993-06-21
Abstract: In a telecommunications network, such as the public switched telephone network, account must be taken of faults which can occur in the network. For instance, on occurrence of a local exchange failure, it is known to apply control such as route gapping and code blocking. The invention is concerned with detection of failure of a local exchange (116, 118) in a communications network. It relies on a combination of parameters, each parameter in the combination having to meet predetermined criteria. In particular, a local exchange failure is recognised when the average value of the All Circuits Engaged (ACE) parameters over all traffic routes into a local exchange rises in a significant manner and the average value of the Circuits in Service (CCTS IS) parameters over all traffic routes into that exchange decreases in a significant manner.
Patent CA-2138827-A1 (CA)
Inventor: SPANKE RONALD A
IPC: H04B10/27
Filed: 1994-12-22
Abstract: An Optical Time Slot Interchange (OTSI) Apparatus that has relatively low optical fiber requirements and good attenuation and signal-to-noise characteristics. This OTSI uses parallel feedback (PFB) to provide the delays. This PFB OTSI can be implemented with an nxn optical crossbar switch. The PFB OTSI is conditionally, i.e., rearrangeably, non-blocking for 16x16 crossbar switch implementations if a controller using the control method of the invention is also included.
Patent CA-2139370-A1 (CA)
Inventor: MEHTA PARAG J
IPC: H01R25/00
Filed: 1994-12-30
Abstract: A duplex receptacle consisting of molded plastic base and cover portions, a pair of terminals having female contacts for receiving plug blades, and a mounting strap.  The terminals are formed with a minimum of bending operations from blanks cut in succession from a metal strip in a manner minimizing the distance of die progression per blank, and reducing scrap.  The contacts have a configuration which enhances electrical communication with the inserted plug blades.  Portions of the cover cooperate with the contacts to increase blade retention force.   A portion of the mounting strap is exposed through an opening in the cover to provide further advantages.   The spring arms on the terminals include  structure  which  inhibits  dislodgement  of  conductors connected to the receptacle by push-wire terminations.
Patent CA-2140037-A1 (CA)
Title: Intumescent compositions
Inventor: WAINWRIGHT ROBIN
IPC: C08K7/10
Filed: 1993-07-16
Abstract: An intumescent composition comprises saline soluble inorganic silicate fibrous material containing CaO, MgO and no more than 4 %  by weight of Al2O3, such as calcium magnesium silicate. The fibres may be vitreous, with an average length of 10 to 500 microns, and may form 5 to 30 weight percent of the composition. The composition may be incorporated in a coating composition, e.g. for wet coating (paint) or powder coating, or a mastic or putty, or a composition containing a polymer. Enhanced fire protection can be provided, and the coating compositions may be applied as a single thick coating rather than by building up thin layers.
Patent CA-2140716-A1 (CA)
Title: Urethral damming device
Inventor: BEYSCHLAG HEINZ G
IPC: A61F2/00
Filed: 1995-01-20
Abstract: A urethral  damming device  is provided herein  for preventing uncontrolled  discharge  of  urinary  fluid  in incontinent patients.   The damming device  includes  an elongate  body  formed  of  a  flexible,  resilient  bio-compatible material adapted to being inserted within a patient's urethra.  The elongate body has a closed anterior end, an open posterior end, and an annular wall joining the anterior and posterior ends.  The annular wall defines an interior recessed cavity which extends axially from the open posterior end of the elongate body toward the anterior end thereof.   In use, the cavity receives urinary fluid passing  through  the  patient's  urethra  which  causes  a pressure to be exerted upon the interior surface of the annular wall.   This outward pressure responsively causes the  annular wall  to be  flexed outwardly  into  sealing relationship with the patient/s urethra.   As a result, uncontrolled discharge of the urinary fluid is prevented.
Patent CA-2141665-A1 (CA)
Title: Air Seal Valve
Inventor: THOMASON BRIAN D
IPC: F16K25/02
Filed: 1994-06-22
Abstract: An air seal valve (8) is formed from an annular valve body (20) having a circular valve plate (12) disposed internally thereof with a pair of axially spaced valves (34 and 50) thereon defining a fresh air plenum (28), wherein one of the valves (50) includes a truncated conical plate having a radially outer edge (54) engageable with the valve body (20) to effect a seal thereagainst. Clean air under pressure greater than the pressure of contaminated emissions flowing into the valve is conducted by a manifold (26) to an outer plenum (22). The clean air flows from the plenum (22) through a plurality of apertures (30) in the valve body (20) to the inner plenum (28). In the event of an imperfect seal within the valve (8), the clean air flows through the leak path into a conduit (10), ensuring that contaminated emissions do not escape past the valve (8).
Patent CA-2144191-A1 (CA)
Inventor: BOUTIN GILBERT
IPC: C10L5/44
Filed: 1995-03-08
Abstract: Dans le but de compenser l'absence de connaissances dans le démarrage de feu pour la majorité de la population, nous avons conçu un "prêt-à-brûler" simplifié, accessible et dont l'efficacité tient du prodige. Celui-ci est un mélange de combustibles, savamment cordés, retenu ensemble adéquatement, dont l'une des trois versions proposées repose sur une base de démarrage de feu. Ce brevet améliore, notamment, le brevet américain no. 4621854, enregistré le 9 décembre 1986.
Patent CA-2144547-A1 (CA)
Title: Aqueous essentially voc-free adhesive epoxy primer
Inventor: SWEET DAVID E
IPC: C09J163/00
Filed: 1993-09-10
Abstract: Aqueous primer compositions containing substantially no volatile organic solvents, suitable for promoting the bonding of a metal adherend to a second adherend, are prepared by dispersing one or more solid epoxy resins and a solid curing agent into water such that the particle sizes of the solids are less than 30 µm. The primer compositions are environmentally superior to sol-vent based primers without loss of physical properties, are storage stable, and exhibit excellent solvent resistance.