baber/WOPTO huggingface dataset:
Patent CA-2354209-A1 (CA)
Title: Methods and compositions for forming permeable cement sand screens in well bores
Inventor: CROOK RONALD J
IPC: E21B43/08
Filed: 2001-07-26
Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid and water present in an amount sufficient to form a slurry.
Patent CA-2355478-A1 (CA)
Inventor: RICHEY JAMES L JR
IPC: A61B17/326
Filed: 2001-08-21
Abstract: The present invention provides a microkeratome for creating lamellar sections from a biological tissue containing a blade-post assembly which improves precision and predictability by preventing undesired blade wobbling. Methods and devices are disclosed to inhibit blade wobbling, preferably frictional fittings are employed to secure the blade (or blade assembly) within the microkeratome. By biasing the blade into a secure position, wobbling during usage is substantially lessened if not eliminated. A modified blade assembly is disclosed having a post that is mated to a surgical blade. In one embodiment of the invention, the post can have one or more protrusions that engage at least one side of a recess in the microkeratome thereby creating a frictional fit sufficient to prevent movement of the blade while cutting. In another embodiment of the invention, the recess can include certain biasing elements that engage the post to prevent blade wobbling. Further, the post can contain a coupling that permits transverse oscillation of the blade while the engagement element prevents wobbling motions.
Patent CA-2358695-A1 (CA)
Title: Hydrofining process using bulk group viii/group vib catalysts
Inventor: DEMMIN RICHARD A
IPC: C01G53/00
Filed: 2000-01-14
Abstract: Hydrofining of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni-Mo-W.
Patent CA-2358836-A1 (CA)
Inventor: COOK RAYMOND ARNOLD
IPC: C08G67/02
Filed: 2000-01-14
Abstract: The invention is related to non-linear, paraffin-soluble olefin/carbon monoxide and olefin/acetylene/carbon monoxide copolymers. The invention is also related to a method for preparing olefin/carbon monoxide copolymers by heating a feed of at least one olefin, carbon monoxide, carbon dioxide, hydrogen, and methane in the presence of a free radical polymerization initiator. More particularly, the feed comprises at least one olefin, the total olefin amount ranging from about 5 to about 40 mole %, carbon monoxide  in an amount ranging from about 1 to about 40 mole %, hydrogen in an amount ranging from about 4 to about 55 mole %, carbon dioxide in an amount ranging  from about 3 to about 10 mole %, and methane in an amount ranging from about  4 to about 85 mole %. The feed may also include acetylene in an amount ranging  up to about 10 mole %.
Patent CA-2361855-A1 (CA)
Title: Iris fixated intraocular lens and instrument for attaching same to an iris
Inventor: VALDEMAR PORTNEY
IPC: A61F9/007
Filed: 2001-11-13
Abstract: An iris fixated intraocular lens (20) for implanting in the anterior chamber of an eye comprises an optic (50) having an optical axis, and anterior, and posterior sides; and first, and second fixation members (52), each of the fixation members having a proximal end region, and a distal end region. The proximal end region of each fixation member is a single flexible strand fixed to an edge region of the optic to extend generally tangentially outwardly therefrom. The distal end region is formed into a loop having defined therein at least one narrow iris pincher gap for detachably attaching the intraocular lens to the anterior surface of the iris. The first, and second fixation members are substantially identical to one another, and are attached to the optic on opposite sides of the optical axis. The optic is preferably constructed from an elastically deformable plastic material, such as silicone or an acrylic, so that the resulting three-piece intraocular lens can be folded or otherwise deformed for implanting into an eye through a small, preferably non-sutured, surgical incision. Variation IOLs are disclosed, such variations relating to iris pincher gaps. A  combination enclave needle, and forceps instrument, capable of one-handed use, is also disclosed.  The instrument may be primarily electrically or mechanically operated.
Patent CA-2363427-A1 (CA)
Inventor: ALBRIGHT MARCIA S
IPC: B60T17/22
Filed: 2001-11-20
Abstract: A brake control unit for providing a brake output signal to a brake load includes a processor, an accelerometer and a memory subsystem. The accelerometer is coupled to the processor and provides a brake control signal to the processor, which is configured to provide the brake output signal to the brake load in response to the brake control signal. The memory subsystem is coupled to the processor and stores processor executable code, which causes the processor to automatically acquire an operating point of the brake control signal when the brake control unit is mounted within a range of operating positions.
Patent CA-2364317-A1 (CA)
Title: Fire door core
Inventor: KLUS DONALD F
IPC: C09K21/00
Filed: 2001-12-04
Abstract: The present invention describes an improved building material composition, useful for example as a fire door core and to improved methods of making this composition. The building material of the present invention consists essentially of expanded perlite, a fireproof binder, clay or vermiculite, and optionally diatomaceous earth, one or more viscosity-enhancing components, reinforcement fibers, and a plasticizer or mixtures thereof. The method of making this improved composition is a semi-continuous batch press method wherein at least the expanded perlite, fireproof binder, and clay or vermiculite are mixed; the mixture compressed in a mold, and the compressed mixture dried.
Patent CA-2365647-A1 (CA)
Inventor: COLE CURTIS
IPC: A61K31/133
Filed: 2001-12-20
Abstract: The invention relates to a method for the treatment of the skin around the eyes of a mammal, is particular a method for reducing the puffiness of and the appearance of dark circles on the skin under the eyes. The method comprises topically applying to the affected skin area a composition comprising an effective amount of at least one alkanolamine having the following general formula:   (See formula 1) wherein X,Y and Z are selected from the group consisting of hydrogen, C1-C3 alkyl group, C2-C4 alkanol group, wherein at least one of X, Y or Z is a C2-C4 alkanol group bearing at least one hydroxyl group and optionally at least one carboxyl group.
Patent CA-2368806-A1 (CA)
Title: Plug in / out toilet seat device
Inventor: GLEESON JAMES F
IPC: A47K13/26
Filed: 2002-01-20
Abstract: This invention is a plug/ receptacle type toilet bowl / toilet seat attachment, to make it more convenient for someone to clean completely toilet bowls and toilet seats. It allows one to remove the toilet seat completely from its attachment to the toilet bowl. Both the toilet bowl and toilet seat can then be cleaned thoroughly.     Afterwards the toilet seat can be reattached to the toilet bowl.
Patent CA-2371409-A1 (CA)
Title: Wheelchair
Inventor: HARCOURT MICHAEL
IPC: A61G5/10
Filed: 2002-02-11
Abstract: A manually-propelled wheelchair having a frame having a forward-facing seat, two independently castered front wheels mounted to the frame, a rear axle suspended beneath the frame, and two rear driving wheels, each rotatably mounted upon an opposite end of the axle. Rotatably mounted upon an opposite ends of the axle are two lever arm assemblies, each comprised of a discrete lever arm ending in a handle and extending far enough from the axle to allow an occupant of the seat to grip the handle and a discrete one-way clutch connecting the lever arm to the wheel mounted upon the same end of the axle. When the occupant pushes the handles in a forward direction, the one-way clutches are engaged so that torque is applied to turn the wheels so as to propel the wheelchair in the forward direction, but when the occupant ceases to push the handles or pulls the handles rearward, the one-way clutches are disengaged, allowing the handles to be pulled freely rearward, and allowing the wheels to rotate forward freely. The one-way clutches May be disconnected by the occupant by operating twist grip handles mounted upon the lever arms. Occupant-operable disk brakes are provided for each driving wheel, the rotor of each disk brake connected to a driving wheel so as to rotate with the driving wheel and the caliper of the disk brake mounted upon corresponding lever arm.
Patent CA-2373040-A1 (CA)
Title: Rescue system for a transport system
Inventor: GO GIOK DJIEN
IPC: E05D7/12
Filed: 2000-05-13
Abstract: Serious or fatal injuries resulting from vehicles crashing into accident vehicles, conventional accident notification, and time-consuming rescue work  on accident vehicles as well as on accident trains were the reasons for conducting the accident research [1-13]. With the aid of these insights, a rescue system (55, 55a) was devised for minimizing the rescue time, the tractive force required, production costs and the dangers present at the sce ne of the accident. According to the invention, the doors (8, 8S-8Y) are jammed  closed during an accident. The fixed connection of each door to the vehicle body (10) is released by; pulling at least one hinge bolt (6, 6a-6c, 6g-6j) out of the hole of the door hinge (5, 5a-5c, 5g-5j) and/or by; breaking at least one hinge joint (5.1a-5.1f). The law of friction and cable friction [1 4] underlies the ability to minimize the tractive forces of all cables (2) of a  device (15, 15a-15j) used for unlatching all doors. As a result, all occupan ts can quickly rescue themselves from the accident vehicle or accident train. A  visual, acoustic and/or vocal warning system (70, 70a-70c) immediately transmits accident, hijacking, warning and/or traffic congestion notificatio ns to the authorities who monitor occurrences of accidents and/or to the driver s located in the area.
Patent CA-2376868-A1 (CA)
Title: Inhalateurs
Inventor: EASON STEPHEN WILLIAM
IPC: A61M13/00
Filed: 2000-06-23
Abstract: L'invention concerne un inhalateur comportant une pompe (17), un dispositif (15) de dosage de médicament et un cyclone (1), qui débite un aérosol de médicament en poudre, du dispositif (15) de dosage de médicament dans une chambre (11) quand la pompe (17) est activée. L'utilisateur inhale l'aérosol par un embout (13).
Patent CA-2377851-A1 (CA)
Title: Wind power plant provided with cast shadow control
Inventor: WOBBEN ALOYS
IPC: F03D80/20
Filed: 2000-03-11
Abstract: In the planning and erection of wind power plants, the manner in which the wind power plant is expected to detract from the beauty of the environment plays an increasingly important role for approval and acceptance. If, for example, a wind power plant is placed in the vicinity of a dwelling, it is possible that the wind power plant or its rotor is located between the sun and the dwelling when the sun is at unfavorable solar altitudes. If the sunshine is not blocked by clouds, the rotating rotor constantly casts a (harsh) shadow onto the property. The shadow which is cast by the wind power plant onto the adjacent area is often perceived by the residents as being very disturbing. Also, in the instance that the wind power plant fulfills the legal requirements with regard to approval, it is not always guaranteed that the undesirable cast shadow is prevented. The aim of the invention is to create a wind power plant by means of which the problem with regard to the cast shadow is overcome. To this end, the invention provides a method for operating a wind power plant which switches off when the sun is at a predetermined solar altitude, when the luminous intensity exceeds a predetermined value (switch-off intensity).
Patent CA-2377862-A1 (CA)
Title: Hollow plastic section
Inventor: BIELEFELD HANS-WALTER
IPC: E06B3/263
Filed: 2000-07-12
Abstract: The invention relates to a hollow plastic section, comprising embedded reinforcing elements. Said hollow plastic section is preferably configured as a frame section for windows or doors. According to the invention, the section has several inner chambers which are delimited by separating walls (7, 8, 9, 14, 15, 16, 17, 18) that extend in the longitudinal direction of the section.  Strip-shaped stiffening elements (4, 5, 11, 12, 25) that are not interconnected are used as reinforcing elements. The reinforcing elements can consist of either a metal or embedded bands or strips consisting of fiber-reinforced plastic. Several inner chambers with a small cross-section that are delimited by separating walls (7, 8, 9, 14, 15, 16, 17, 18) extending in the longitudinal direction of the section are provided.
Patent CA-2378033-A1 (CA)
Title: Procede d'assemblage de composants metalliques differents
Inventor: RACHOWITZ BERNARD I
IPC: B23K20/06
Filed: 2001-05-01
Abstract: La présente invention concerne l'assemblage de composants métalliques à très haute résistance (1,2) par des techniques de profilage électromagnétique. Un des composants métalliques (1) porte des charges élevées ou est soumis à des contraintes et des déformations associées. Par conséquent, ce matériau doit être relativement résistant et ductile. En outre, on utilise les procédés de profilage électromagnétique (EMF) ou de soudage par impulsion magnétique (MPW) pour assembler ces composants (1,2) dont la résistance est temporairement réduite avant l'opération d'assemblage. Ce matériau à haute résistance est soumis à un chauffage régressif puis à un processus de trempe le long d'une surface limite (3); il est ensuite assemblé par voie électromagnétique; la résistance réduite du matériau est enfin rétablie à son degré de dureté et de résistance le plus élevé.
Patent CA-2380161-A1 (CA)
Title: Apparatus for holding and metered dispensing of an active composition into a washing machine, a laundry dryer or a dishwashing machine
Inventor: HARBUTT RICHARD
IPC: D06F39/02
Filed: 2000-07-19
Abstract: A device for receiving and dispensing an active composition in a dosed manner into a washing machine, linen drier or a dishwasher, characterized by a storage chamber which receives at least double the amount of an individual dose of said active composition; further characterized by a dosing chamber which is connected to the storage chamber by a passage in order to receive an individual dose of an active composition and to discharge said composition by means of a discharging passage and additionally characterized by prior and simultaneous closing of said passage between the supply chamber and the dosing chamber, actuated by means which are activated by conditions inside the machine, existing exclusively during a wash, dry or dishwashing cycle, whereby the passage between the storage chamber and the dosing chamber is re-opened, and prior or simultaneous closing occurs for the discharging passage of the dosing chamber whereupon the latter can be re-filled from the supply chamber.
Patent CA-2380547-A1 (CA)
Inventor: GEREMIA GIOVANNI
IPC: A01D7/00
Filed: 2002-04-08
Abstract: The invention provides an improvement to the common leaf and lawn rake in that, with a simple adjustment, the rake can be converted from a pull type rake to a push type rake. The pull rake is required in some circumstances where pushing is not practical. However, being able to adjust the pull rake to a push rake, and any angle in between, gathering leafs or debris of the like will require much less energy and less dexterity. The combination of being able to pull or push the rake so that the tines interact with the ground the same in either mode, enables the user to fully and efficiently clean an area by being able to access all areas and expanding the least amount of energy during the cleaning process.
Patent CA-2380611-A1 (CA)
Inventor: SCHNEIDER THOMAS D
IPC: H02N11/00
Filed: 2000-07-31
Abstract: A molecular motor in which multiple concentric cylinders (or nested cones) rotate around a common longitudinal axis. Opposing complementary surfaces of the cylinders or cones are coated with complementary motor protein pairs (such as actin and myosin). The actin and myosin interact with one another in the presence of ATP to rotate the cylinders or cones relative to one another, and this rotational energy is harnessed to produce work. The concentration of ATP  and the number of nested cylinders or cones can be used to control the rotational speed of the motor. The length of the cylinders can also be used to control the power generated by the motor.
Patent CA-2382091-A1 (CA)
Title: Dispositif permettant la fusion et l'affinage en continu de composes inorganiques, notamment de verres et de vitroceramiques
Inventor: KIEFER WERNER
IPC: C03B5/225
Filed: 2000-08-08
Abstract: La présente invention concerne un dispositif permettant la fusion et l'affinage en continu de composés inorganiques, notamment de débris ou de mélanges de verres. Ce dispositif comprend un récipient de fusion (1) et un récipient d'affinage (3). Une bobine d'induction (5), associée au récipient d'affinage (3), sert à l'alimentation en énergie haute fréquence dans le récipient d'affinage (3) et entoure la paroi du récipient d'affinage. Ce dispositif comprend également une conduite de connexion (2) qui permet le transfert de la masse fondue, du récipient de fusion (1) au récipient d'affinage (3). Selon cette invention, ladite conduite de connexion (2) sort du récipient de fusion dans la zone de fond (1.1) dudit récipient de fusion (1) et entre dans le récipient d'affinage dans la zone de fond (3.1) dudit récipient d'affinage (3).
Patent CA-2382361-A1 (CA)
Title: Ultrasound handpiece
Inventor: CHON JAMES Y
IPC: A61B18/00
Filed: 2001-07-23
Abstract: A handpiece having a set of longitudinally vibrating piezoelectric elements (21) and which may additionally have an electric motor (114) to provide rotational or oscillatory movement to the ultrasound horn. The piezoelectric elements (21) are surrounded by a high temperature plastic sleeve (39), and the sleeve is filled with high temperature potting material (141). The potting material seal the piezoelectric elements against moisture without affecting the performance of the piezoelectric elements.
Patent CA-2383326-A1 (CA)
Title: Isolateur electrique composite incluant un capteur integre a fibre optique
Inventor: LEPLEY DAMIEN
IPC: H01B17/32
Filed: 2002-05-14
Abstract: L'isolateur électrique composite comprend un capteur intégré à fibre optique disposé à l'intérieur de l'isolateur. Ce capteur intégré peut être u n capteur de défaut constitué d'une fibre optique (5) placée sur la tige support de l'isolateur et ayant une gaine optique fusible à une température critique pour l'isolateur. Le capteur intégré peut être un capteur de mesure de contraintes d'origine mécanique ou thermique qui s'exercent sur l'isolateur quand il est en service. Il est constitué d'une fibre optique dans laquelle est implanté un réseau de Bragg. Le réseau de Bragg est placé sur la tige support de l'isolateur ou sur une armature métallique de l'isolateur.
Patent CA-2384412-A1 (CA)
Title: Method and apparatus for wireless phone transmit power amplification with reduced power consumption
Inventor: ZHANG YANG
IPC: H03F3/24
Filed: 2000-09-22
Abstract: A method and apparatus for RF amplification of a transmit signal within a wireless phone. The amplifier chain is composed of three parts, a pre-driver (202), a bypassable driver amp (220), and a power amp (240). The configuration of the amplifier chain is adjusted in real time to optimize power consumption for a given output power requirement. At low output power levels the driver amp (220) is bypassed and the power amp (240) is provided a low bias current.  At medium output power levels the driver amp (220) is bypassed and the power amp (240) is biased at a moderate current. When high output power is required the driver amp (220) is utilized and the power amp (240) is provided a high bias current. The driver amp (220) is shut down when in the bypassed state.  The result of implementing this amplifier configuration is an increase in the efficiency of the transmit amplifier. The increase in amplifier efficiency results in increased talk times for battery powered wireless phones.
Patent CA-2385155-A1 (CA)
Inventor: BACKMAN ARTHUR LEONARD
IPC: C08L23/28
Filed: 2000-09-07
Abstract: Block chlorinated polyolefins are disclosed as performance enhancer of high rubber graft copolymers or chlorinated polyethylenes impact modifier in PVC and/or CPVC resins. The block chlorinated polyolefins (e.g. block chlorinate d polyethylene) provide good dispersion of the impact modifier particles in th e matrix and better adhesion between the impact modifier and the PVC and/or CP VC interface, providing better physical properties such as impact strength as measured by Notched Izod than did the randomly chlorinated polyolefins, ofte n used as processing aids and as impact modifiers in PVC or CPVC. The differences in properties achieved with block chlorinated polyolefins versus  randomly chlorinated polyolefins are attributed to the individual blocks of the blocky polyolefin being compatible with either the impact modifier or th e PVC/CPVC resulting in better adhesion between phases.
Patent CA-2387899-A1 (CA)
Title: Electrochemical gas sensor
Inventor: AUSTEN MALCOLM TRAYTON
IPC: G01N27/416
Filed: 2000-10-26
Abstract: An electrochemical gas sensor (10) including a first planar substrate (18) having at least one planar electrode (14) formed thereon, thereby forming a first electrode assembly, and a housing (12) defining a reservoir (20) which, in use, contains liquid electrolyte for contacting the electrode(s), the housing having a first sealing face (36) to which the first electrode assembly is sealed, the sealing face comprising conducting portions (40, 42, 44, 46, 48) electrically isolated one from another, wherein a portion of at least one electrode (14) is in contact with a respective conducting portion (40, 42, 44, 46, 48) so as to provide a means of external electrical connection to the electrode(s), and wherein the conductive portions (40, 42, 44, 46, 48) and non-conductive portions (50) of the housing (12b) are co-moulded.  This sensor has a relatively small number of component parts and is relatively cheap and easy to manufacture. It also provides a cheap and reliable way of forming external electrical connections to the electrodes.
Patent CA-2389907-A1 (CA)
Inventor: KORDESCH KARL
IPC: C25B11/02
Filed: 2002-06-07
Abstract: An improved flat plate rechargeable alkaline manganese dioxide-zinc cell comprising a paste-like cathode applied to a first metal based current collector; a mercury-free paste-like anode applied to a second metal based current collector, a separator, and an aqueous alkaline electrolyte. The paste-like cathode comprises active electrolytic manganese dioxide, active electrolytic manganese dioxide, 2-15% by wt of at least one of graphite and carbon black, 2-5% by wt of a polymeric binding agent. 1% or less by wt of electrolyte absorbing agent, 1-15% by wt of a barium compound, and 0.01-10% by wt hydrogen recombination catalyst.  The paste like anode comprises a zinc active material, 25-50% by wt of an aqueous electrolyte, 0.5-5.0% by wt thickening agent, 0-5% by wt of electrolyte absorbing agent, and 0-20% by wt of solid zinc oxide. A method of forming paste-like cathodes and anodes for flat plate electrodes is also provided.
Patent CA-2393463-A1 (CA)
Inventor: MARKLAND FRANCIS S JR
IPC: C12N5/07
Filed: 2000-12-09
Abstract: Contortrostatin, a homodimeric disintegrin, modulates the adhesion, motility , and invasiveness of integrin expressing tumor cells. When formulated as a pharmaceutically acceptable composition, the proteins can be used to treat patients by inhibiting or disrupting disease processes associated with an integrin binding to an .alpha..nu..beta.3 or .alpha..nu..beta.5 integrin.</S DOAB>