baber/WOPTO huggingface dataset:
Patent CA-2143161-A1 (CA)
Title: Pump particularly useful in respirator apparatus
Inventor: ADAHAN CARMELI
IPC: F04B39/12
Filed: 1995-02-22
Abstract: A reciprocating pump particularly useful in ventilator apparatus includes a piston reciprocatable axially within a cylinder and dividing its interior into an inlet chamber and an outlet chamber, a wall fixed within the inlet chamber, and a drive housing fixed to the wall. The drive housing includes a motor, a rotor rotatable by the motor, a nut rotatable within the drive housing, and a screw threadedly coupled atone end to the nut and fixed at its opposite end to the piston. The piston is substantially unrestrained for axial and rotary movement such that forward and reverse rotation of the nut by the motor reciprocates the screw and the piston axially of the cylinder, and also permits the screw and the piston to rotate with respect to the cylinder to thereby even out wear between the piston and cylinder.
Patent CA-2143292-A1 (CA)
Title: Method for prediction of premature labor
Inventor: DULLIEN VIVIAN K
IPC: G01N33/74
Filed: 1993-09-28
Abstract: A method for detecting the imminent onset of labor in a patient, which comprises analyzing a body fluid of the patient for estriol concentration; correlating the concentration with a standard value;  and relating a higher concentration of estriol relative to the standard value as an indication of potential onset of premature labor. The standard is usually selected from the group consist-ing of (I) a predetermined range of estriol concentrations for the body fluid in normal pregnant humans at a preselected time rel-ative to normal, full-term delivery, or (2) a previously measured estriol concentration of the same body fluid of the same pregnant human. Use of this method does not require determination of an estriol/progesterone concentration ratio in the body fluid being test.
Patent CA-2147743-A1 (CA)
Inventor: THORNTON WILLIE HANSEL JR
IPC: E21B23/01
Filed: 1994-06-24
Abstract: A wellbore anchor tool employing at least one pair of slip segments (32) which wrap at least partially around a mandrel (29) passing through the tool, the individual slip segments (34, 35) carrying bearing surfaces (34) and restraint members for holding the slip segments (32) in the tool but at the same time in slidable engagement with the tool.
Patent CA-2149958-A1 (CA)
Title: Self-crosslinking preparations, production and use thereof
Inventor: KIRCHMEYER STEPHAN
IPC: C09K23/52
Filed: 1995-05-23
Abstract: Self-crosslinking preparation made from water, alkoxysiline compounds containingperfluoroalkyl groups, compounds soluble in water or emulsifiable or dispersiblein water containing perfluoroalkyl groups and optionally further constituents, which preparations are storage stable and suited for the protection of glass, stony material, textiles, leather and paper.
Patent CA-2151655-A1 (CA)
Title: Sound attenuation wall construction
Inventor: DODD MURRAY B
IPC: E04B2/74
Filed: 1995-06-13
Abstract: A sound attenuating wall construction having a wall of vertical members, a hanger bar secured to one side of the wall near an upper edge thereof, a sound attenuating curtain of flexible material hanging from the hanger bar downwardly to the bottom of the wall structure spaced the said wall structure by an air space, a cover wall secured to the wall structure on the other side of the flexible sound curtain, and defining a further air space between the cover wall and the sound curtain, and, sound attenuation baffles in at least one of the cover wall and said the structure.
Patent CA-2152015-A1 (CA)
Inventor: VAILLANCOURT ALAIN
IPC: H05B1/02
Filed: 1995-06-16
Abstract: There is provided a safety device for electric stoves and ovens wherein there is provided a sensor for sensing when the stove is heating at a certain rate which could constitute a safety hazard and a sensing means for detecting the presence of a person within a predetermined area proximate the stove. When a certain period of time passes without motion by a person in the predetermined area while the stove is in the predetermined operating condition, power to the stove can be reduced.
Patent CA-2152598-A1 (CA)
Inventor: MAHANY RONALD L
IPC: H04B1/16
Filed: 1993-12-23
Abstract: A transceiver apparatus (110) for creating a wireless personal local area network between a computer terminal (7) and one or more peripheral devices (9, 13, 23). A separate transceiver (110) is connected to the computer terminal (7) and to each peripheral device (9,13, 23). The transceivers (110) can be connected to the terminal (7) or the peripheral devices (9, 13, 23) either internally or externally. A low power radio (112) is used to communicate information between the computer terminal (7) and the peripheral devices (9, 13, 23). Different transceivers (110) can be used for modifying the carrier frequency and power of the local area network. A microprocessor (120) is located inside each transceiver (110) and controls the information flow of the transceiver including the communication protocol which allows each device (7, 9, 13, 23) to know if other devices (7, 9, 13, 23) are communicating, which devices (7, 9, 13, 23) are being communicated to, and selectively address the peripheral devices (9, 13, 23). An Idle Sense communication protocol is used for information transfer between the computer terminal (7) and the peripheral devices (9, 13, 23).
Patent CA-2153163-A1 (CA)
Title: Process of producing beer
Inventor: DZIONDZIAK KLAUS
IPC: C12C12/04
Filed: 1993-12-17
Abstract: In a continuous process for producing beer, starch-containing raw materials are crushed and if required transformed into malt, won is extracted from the crushed and if required melted raw materials and tbe won is subjected to alcoholic fermentation.  All steps of this process are continuously carried out. The masb is at first heated in a reactor system up to 75 to 85 °C, the remains are separated from tbe mash, the won is then hopped and beated up to a temperature from 105 to 140 °C. Tbere follow a flash caporisation step, a sludge separation step and a won cooling step. The wort is then fermented at 6 to 25 °C in the presence of a boicatalyst. A continuous total or partial beer dealcoholisation step may follow the fermentation process.
Patent CA-2157409-A1 (CA)
Title: A method for isolating a zone of a formation or reservoir penetrated by a wellbore
Inventor: MCPHERSON THURMAN WAYNE II
IPC: C09K8/508
Filed: 1994-03-17
Abstract: A method for zone (10, 12, 14) isolation or replacing a damaged or corroded casing (20) with a solidifiable epoxy resin mixture. An amount of the mixture sufficient to form a hardened plastic or solid, underwater or at low wellbore temperatures that is able to withstand downhole stresses, is placed into the wellbore (16) so as to bind with the undamaged casing (20) and close off any thief zone (22). Subsequently, the mixture forms a hardened solid. The hardened solid is milled out if necessary so as to form a resinous casing the size of the original casing (20).
Patent CA-2158460-A1 (CA)
Title: Leakproof framed panel curtain wall system
Inventor: TING RAYMOND M L
IPC: E06B7/14
Filed: 1994-03-18
Abstract: This invention relates to the water-tight performance of an exterior curtain wall system assembled from multiple wall panels (11) and glass window panes. The design utilizes concealed water drainage mechanism within pressure equalized wall cavities and thus prevents the exterior water from reaching the field formed sealed wall joints (12, 13). Therefore, any deficiencies in field workmanship or durability of sealant material will not produce water leakage problem.
Patent CA-2160597-A1 (CA)
Title: Signal light steering with high beam + low beam
Inventor: LAROCQUE ROB J
IPC: B60Q1/34
Filed: 1996-01-26
Abstract: The signal light steering with built in low beams plus high beam has been brought closer within eye sight to make it easier, safer, by keeping both hands on the steering wheel. Once in motion for making a left or right turn at anytime. All you have to do is slowly move without taking hands off the steering wheel, slide down about half way, and what ever direction you want to turn just reach with thumb or fourth finger and press down on signal button. Simple as that. Again doing the same thing is your low beam and high beam. Just a little ways below the signal light button. Always remember keeping both hands on the steering wheel will give you better control of your vehicle.
Patent CA-2161363-A1 (CA)
Inventor: HATTORI HITOSHI
IPC: F04C18/32
Filed: 1995-10-25
Abstract: A rolling piston type expansion machine where an open-close valve mechanism is eliminated and where the timing for suction of high-pressure gas is smoothed up. The rolling piston type expansion machine includes: a cylinder (13) having a discharge port therein; a roller (23) which is freely eccentrically rotatably provided in the cylinder (13); a blade (29) which is freely movably supported by the cylinder (13) and whose tip is in contact with the circumferential surface of the roller (23) so as to form an expansion chamber (31); a gas passage (39) which is freely rotatably supported by a main bearing member (17) and a secondary bearing member (19), and which includes a main shaft (9) having a crank shaft portion (21) that causes eccentric rotation to the roller (23), and which includes a suction port (43) provided along a shaft center of the main shaft (9); and an inflow timing control portion (41) which controls inflow timing of the suction gas toward the expansion chamber (31) via the suction port (43) of the gas passage (39).
Patent CA-2162444-A1 (CA)
Inventor: ROBERTS DOUGLAS
IPC: A63B59/14
Filed: 1995-11-08
Abstract: A hockey stick of the type employing a shaft susceptible to damage from heating to high temperatures and a socket for receiving a replaceable blade which is held fixedly therein during play, and where the shaft is heated to allow replacement of the blade, incorporates a heat tolerant shaft segment for receiving the blade, the heat tolerant segment extending not more than one half the total length of the shaft and formed of a heat tolerant material not degraded for hockey play by application of heat from a high temperature heat source in changing the blade, the remainder of the shaft being heated to a lesser extent than the heat tolerant segment when heat is applied in carrying out blade replacement.
Patent CA-2164605-A1 (CA)
Inventor: SCHMIDT G GERRY
IPC: B26B9/00
Filed: 1994-03-29
Abstract: A blade (10) for a utility knife is provided which has a trapezoidal shape with a cutting edge (12) and a pair of side edges (16) which converge towards a blunt back edge (14). A safety edge (28) joins each of the side edges (16) with the cutting edge (12). The safety edges (28) intersect with the cutting edge (12) at an obtuse angle and provide substantially blunt surfaces. Safety corners (24) are formed at intersections of the safety edges (28) and the side edges (16). The safety corners (24) are disposed at the outermost distal ends of the blade (10) relative to the cutting edge (12). Cutting corners (26) are formed at the intersections of the safety edges (28) and the cutting edge (12). The cutting corners (26) are disposed inwardly along the cutting edge (12) relative the safety corners (24). This way, inadvertent contact between an operator and a safety edge (28) would not be likely to cause injury since the safety corners (24) would be contacted first.
Patent CA-2164708-A1 (CA)
Title: Bulb mounting arrangement for an electrodeless discharge lamp
Inventor: DOWNTON KENNETH JAMES
IPC: H01J5/50
Filed: 1995-04-06
Abstract: A mounting arrangement for mount-ing a lamp envelope (14) to a lamp base (12) for an electrodeless fluorescent dis-charge lamp (10) includes a bulb mount-ing clip (36) having a center support por-tion and a plurality of arms (44) extending therefrom. Each of the plurality of arms (44) is formed having at least two curved portions one of which contacts a ridge por-tion (12a) formed on the lamp base to se-cure the bulb mounting clip (36) to the lamp base (12). The second curved portion (42) of each of the plurality of arms (44) contacts an indention formed in the region of the lamp envelope (14) which fits within the lamp base (12). The contacting rela-tions between the lamp base (12) and lamp envelope (14) achieved by use of the bulb mounting clip (36) are effective to prevent rotational movement of the lamp envelope (14) relative to the lamp base (12). The plurality of arms (44) are in contacting re-lation to the lamp envelope (14) such that, if excessive force is exerted on the lamp envelope (14), the lamp envelope (14) will break first within the lamp base (12) rather than on the outer envelope area.
Patent CA-2165876-A1 (CA)
Inventor: PIKE RICHARD DANIEL
IPC: D04H3/14
Filed: 1995-12-21
Abstract: The present invention provides an topically appliable active agent impregnated nonwoven pad, and the pad is fabricated from a nonwoven web that contains crimped conjugate fibers of spunbond fibers, or staple fibers, wherein the nonwoven web is characterized as having autogenous interfiber bonds at the crossover contact points of its fibers throughout the web. The invention additionally provides a method of cleaning or buffing a solid surface with the nonwoven web.
Patent CA-2166793-A1 (CA)
Inventor: IVERS DAVID L
IPC: A61B6/00
Filed: 1994-05-18
Abstract: An oximetry sensor (10) constructed in-cluding first and second opposed shell mem-bers (11, 12) for engaging the opposite sides of a patient's finger. A pair of LED's (43, 44) is releasably connected to the first mem-ber (11) for projecting light through the finger and a light detector (45) is mounted on the other member (12) for detecting unabsorbed light transmitted through the finger. One of the shell members (11) is mounted for slid-ing movement on the other (12) for engaging the opposite sides of the patient's finger and a coupler (14) retains the shell members (11, 12) in position. In a first embodiment, the LED's (43, 44) are directly releasably coupled to the first member (11) and in a second embodi-ment a fiber optic cable releasably couples the LED's (43, 44) to the first member (11).
Patent CA-2167186-A1 (CA)
Title: Method for Precipitating Natural Avermectins
Inventor: ALI ABDULLAH R
IPC: C12R1/645
Filed: 1994-04-26
Abstract: A process for separating a natural B avermectin from a natural avermectin containing fermentation broth by using an aqueous precipitation. The process comprises extracting natural avermectins from the fermentation broth with a water miscible solvent and adding sufficient water to precipitate the natural B avermectins. Preferably, the water miscible solvent is a C1-C3 alcohol, acetone, or acetonitrile. In addition, an acid, base, salt or surfactant may be added to facilitate the precipitation. This invention provides an isolation technique that substitutes the use of an aqueous precipitation for nonaqueous solvent precipitations. The reduction in use of nonaqueous solvents provides economic, environmental and safety benefits.
Patent CA-2168511-A1 (CA)
Title: Synchronized video/audio alarm system
Inventor: KOSICH JOSEPH
IPC: G08B7/06
Filed: 1996-01-31
Abstract: An audio/visual alarm system which includes multiple microprocessor-controlled alarm units connected in a common loop to a fire alarm control panel and an interface control circuit. The interface control circuit causes brief interruptions in power to the alarm units which synchronize operation of the alarm units and which can also be used as alarm control signals. The interface control circuit allows for control of both audio and visual alarms using only the single common loop connection between alarm units.
Patent CA-2170239-A1 (CA)
Title: Modulation codee avec gain de mise en forme
Inventor: WEI LEE-FANG
IPC: H04N21/2383
Filed: 1995-07-14
Abstract: Système de transmission TVHD qui comporte un précodeur Tomlinson (17) dans l'émetteur afin de compenser le brouillage forcé entre symboles introduit par un filtre de suppression NTSC utilisé dans le récepteur. Ledit système emploie l'un des schémas d'une famille de schémas de modulation à quatre dimensions basés sur une constellation de base à six points de signaux et à une dimension. Les différents schémas présentent différentes quantités de gain dit de mise en forme et soutiennent différents débits de données de charge utile. Les caractéristiques du précodeur Tomlinson sont telles qu'elles préservent une partie importante du gain de mise en forme. Ledit système peut commuter son fonctionnement parmi les différents schémas de modulation codée pour répondre à des changements des conditions de canal et/ou pour répondre à différents débits binaires de signaux de source.
Patent CA-2171776-A1 (CA)
Inventor: BEBERNES THOMAS DARYL
IPC: B62D11/18
Filed: 1996-03-14
Abstract: A steering and ground speed control mechanism of a vehicle equipped with a dual-path hydrostatic drive system includes a pivot plate fixed to a vertical pivot post at a location between and equidistant from a pair of locations respectively linked to a pair of pump displacement control arms of a pair of pumps respectively coupled for delivering fluid to right- and left-hand drive motors coupled to right-and left-hand ground wheels.  A train of elements for transferring steering inputs from a steering wheel to the pivot plate includes a timed belt and sprocket set with one of the sprockets being fixed to the pivot post and the other mounted to a fixed post together with a quadrant-shaped steering rack for pivotal movement about the fixed post in concert with the rack.  Pivoting the pivot plate in opposite directions from a centered position causes different displacements of the pumps and, hence, in the two drive motors being driven at different speeds.  A train of elements for transferring speed inputs from a speed control lever to shift the pivot plate back and forth in a nearly straight path includes a push-pull cable coupled between the lever and an arm having the pivot post pivotally mounted in one end thereof, with the arm being mounted for pivoting about the fixed post exclusive of the rack and sprocket.  A spring-applied, hydraulically released latch is provided for latching the steering wheel and speed control lever in their respective "centered" and "neutral" positions when hydraulic pressure is absent and a "neutral" start switch is positioned for being activated for completing a vehicle starting circuit only when the steering wheel and speed control lever are in these positions.
Patent CA-2173810-A1 (CA)
Inventor: HUFTON JEFFREY RAYMOND
IPC: C01B32/40
Filed: 1996-04-10
Abstract: A process for producing carbon monoxide (CO) by reforming methane and steam in the presence of a reforming catalyst to produce a reformate product enriched in CO, carbon dioxide(CO2) and hydrogen. CO2 in the enriched reformate is shifted to CO in an integrated sorption enhanced reaction (SER) cycle which employs a series of cyclic steps to facilitate reaction of CO2 and hydrogen at high conversion and to produce a CO-enriched product obtained at reactor feed pressure and at essentially constant flow rate A series of adsorbent regeneration step including depressurization, purging and product pressurization are used to desorb water which is selectively adsorbed by the adsorbent during the shift reaction and to prepare the reactor for a subsequent process cycle.
Patent CA-2173841-A1 (CA)
Title: Ultrasonic spectral contrast imaging
Inventor: ARDITI MARCEL
IPC: A61K49/00
Filed: 1995-09-21
Abstract: This invention is applicable to the electronic circuits found in echographic imaging instruments, such as those used for medical diagnosis.  Its implementation requires the injection of specific contrast agents in the body, or more generally in the region to be imaged.  The underlying principle of the new imaging proposed is based on use of frequency dependent bahaviour of the ultrasound contrast agents containing microbubbles.  In essence, these imaging principles exploit certain physical "signatures" of the contrast agent responses, allowing increased contrast with respect to tissue background.  This contrast enhancement is much larger than what is determined from direct echo amplitude monitoring.
Patent CA-2175283-A1 (CA)
Title: Common idler strap for use in a clothes dryer
Inventor: TORBORG KEVIN
IPC: D06F58/08
Filed: 1996-04-29
Abstract: An idler device is provided for maintaining tension on a belt driven by a rotating drive pulley of a motor.  The idler device includes an idler strap assembly having a strap with first and second end portions, a circular boss on the first end portion, and an idler pulley rotatingly mounted on the second end portion.  The boss extends through an opening in a wall of a motor support bracket which is generally perpendicular to a rotational axis of the drive pulley such that the strap is rotatable about a central axis of the boss which is parallel to a rotational axis of the drive pulley.  The boss has a pair of opposed, longitudinally extending, rectangular tabs behind the wall to secure the strap to the wall.  The idler pulley has a rotational axis generally parallel with the rotational axis of the drive pulley.  The spring element is connected between the support bracket and the strap such that rotation of the strap is biased in a direction toward the drive pulley with the idler pulley against the belt to tension the belt.  The opening in the wall has a pair of opposed rectangular notches at a 45 degree angle relative to vertical in a direction opposite the biased rotation of the strap for passage of the tabs to install and remove the strap.
Patent CA-2176696-A1 (CA)
Title: Protease containing dye transfer inhibiting compositions
Inventor: BAECK ANDRE CESAR
IPC: C11D17/06
Filed: 1994-12-15
Abstract: A granular detergent composition having a density from 550 to 950 g/liter, said detergent composition comprising: (i) a polymeric dye transfer inhibiting agent (ii) a protease having an isoelectric point below 10, (iii) a surfactant system which is free of alkylbenzene sulfonate surfactant.
Patent CA-2177246-A1 (CA)
Title: A drawer slide latch
Inventor: O'NEILL KEVIN
IPC: A47B88/04
Filed: 1996-05-23
Abstract: The present invention relates to a drawer slide assembly with an integral latch mechanism to inhibit inadvertent opening of a drawer. The structure of the present invention comprises an outer slide member and an inner slide member. The inner slide member is slidably engaged to the outer slide member. The structure includes an aperture in one of the slide members. A bearing is positioned to removably engage the aperture when the drawer slide assembly is in the closed position thereby forming a latch detent mechanism. The bearing is resiliently seated in a bearing retaining structure mounted on the drawer slide structure. The bearing retaining structure is provided with means for providing a biasing force onto the bearing. This biasing force urges the bearing toward engagement with the aperture. When the bearing engages the aperture the inner slide member is held against slidable movement with respect to the outer slide member. This engagement provides for a secure latch to hold a drawer against inadvertent opening. The force necessary to disengage the latch is dependant upon the biasing force put upon the bearing.
Patent CA-2177482-A1 (CA)
Inventor: MEI GEORGE C
IPC: C06B45/00
Filed: 1994-11-14
Abstract: La présente invention concerne un composé d'amorçage sans plomb (22) de haute sensibilité. Ce composé d'amorçage (22) est constitué d'un explosif d'amorçage, d'un sensibilisant, d'un propulsif, de siliciure de calcium et d'un oxydant. Les produits de dégagement de combustion sont essentiellement exempts d'oxydes toxiques tels que l'oxyde de plomb, l'oxyde de baryum et l'oxyde d'antimoine.