baber/WOPTO huggingface dataset:
Patent CA-2237143-A1 (CA)
Inventor: BLACK MICHAEL TERENCE
IPC: A61P31/04
Filed: 1998-07-09
Abstract: The invention provides ratA polypeptides and DNA (RNA) encoding ratA polypeptides and methods for producing such polypeptides by recombinant techniques. Also provided are methods for utilizing ratA polypeptides to screen for antibacterial compounds.
Patent CA-2237237-A1 (CA)
Inventor: HEINRICH JOHANNES
IPC: F16H9/00
Filed: 1998-05-08
Abstract: A continuously variable cone pulley transmission with pairs of cone pulleys disposed on the drive shaft and power takeoff shaft, whose spacing is adjustable in each case hydraulically with the aid of pressure cylinders, as a result of which the wrapping means revolving between them can be set to different orbits, and a continuously variable transmission ratio setting is thus made possible.  The pressure medium required for the hydraulic actuation is allocated to the pressure cylinder by a pump via a control valve.  This control valve is hydraulically actuated by a pressure furnished as needed via a proportional pressure reducing valve.  If the proportional pressure reducing valve should fail, thus causing a failure of the control pressure, an additional device prevents the control valve from issuing a command for a sudden change of transmission ratio to an extreme position.
Patent CA-2237542-A1 (CA)
Inventor: BREZINSKI MICHAEL M
IPC: C09K8/54
Filed: 1998-05-13
Abstract: The present invention provides improved quaternary ammonium compounds useful as metal corrosion inhibitors in aqueous acid solutions, methods of preparing the compounds, metal corrosion inhibited aqueous acid solutions containing the compounds and methods of protecting metal surfaces from acid corrosion using the compounds. The compounds are prepared by contacting the still bottoms residue produced in the distillation of quinoline from coal tar with oxygen to oligomerize aromatic amines contained therein and then reacting the oligomerized amines with a benzylhalide.
Patent CA-2239188-A1 (CA)
Title: Improvements relating to containers
Inventor: BRITTON CHARLES JONATHAN
IPC: B29C49/10
Filed: 1996-11-29
Abstract: A container is made in two stages from thermoplastics material. In the first stage a preform (1) is injection moulded, the mould parts easily releasing a tubular body (2) with a closed end and an outwardly projecting rim (3) at the open end. In the second stage the still heated preform (1) is blow moulded, possibly with some preliminary mechanical stretching, with the blow pin (13) seated in the open end of the body (2) and the preform (1) held by the outer part (7) of its rim. The wall of the body (2) is expanded, and immediately below the open end it is stretched outwardly to meld with the underside of the inner part (5) of the rim. The resultant container thus has a mouth defined by an inset lip.It may be of paint tin form, with a drip groove (9) around the mouth.
Patent CA-2241274-A1 (CA)
Title: Endometrial tissue curette and method
Inventor: FOWLER ROBERT STUART
IPC: A61B10/00
Filed: 1996-12-26
Abstract: A uterine curette device (10) and method for curetting the endometrial lining the uterus using a cannula (12) having a hollow curetting head (14) including at least one longitudinal slot (22) through which endometrium can be suctioned into the curetting head (14). The at least one longitudinal slot (22) having two margins (24) with at least one margin (24) having a curetting edge (32) where the margin (24) meets the outer surface (34) of the curetting head (14).  Endometrium is curetted by rotating the cannula (12) about its longitudinal axis so that the at least one curetting edge (32) curettes off the endometrial sample which is then suctioned into the cannula (12).
Patent CA-2245153-A1 (CA)
Inventor: KELLY KARIN E
IPC: A61B5/296
Filed: 1998-08-13
Abstract: The present invention is a collection container assembly comprising a container having a plurality of fins extending from the bottom of the container wherein the external dimensions of the assembly are substantially the same as a standard-sized blood collection tube but with a reduced internal volume of the container.
Patent CA-2254219-A1 (CA)
Inventor: SIGNORELLI JOHN A
IPC: E01F13/02
Filed: 1998-12-09
Abstract: A safety or traffic marker is capable of providing a continuous physical border between two locations.  A housing, or one of several adapters, are employed in a conventional traffic cone to dispense an elongated strip of tape therefrom.  In one embodiment, the housing is physically incorporated into the interior of the marker, and is adapted for easy insertion and removal of a tape or safety material dispenser.  In order to achieve easy insertion of the tape dispenser into the housing, the upper portion of the marker is split into separable sections.  Since the marker is fabricated from a deformable material, the upper portion can be manually separated into an opened position for insertion of the tape dispenser therein.          Hook and loop fasteners may be used to fasten together the two sections into a closed position.  Adapters may also be used in conjunction with conventional traffic markers for creating a continuous physical border between two or more locations.
Patent CA-2254606-A1 (CA)
Inventor: SHIRAGAKI TATSUYA
IPC: H04J14/02
Filed: 1998-11-27
Abstract: In a ring topology network, a number of nodes interconnect transmission links to form first and second working rings and first and second optical protection rings in a ring topology. Multiple working paths are established on each working ring and multiple protection paths are established on each protection ring corresponding to the working paths. A first working path spans across first and second nodes for transmission of a signal in a first direction of the ring topology, and a second working path of the second working ring spans across the first and second nodes for transmission of a signal in a second direction of the ring topology opposite to the first direction. A first protection path on the first protection ring spans across the first and second nodes for transmission of a signal in the second direction of the ring topology, and a second protection path of the second protection ring spans across the first and second nodes for transmission of a signal in the first direction of the ring topology. The first and second nodes normally use the first and second working paths, respectively. Responsive to a failure of one of the first and second working paths, the first and second nodes use a corresponding one of the first and second protection paths, instead of the failed working path.
Patent CA-2255378-A1 (CA)
Title: Plastic safety valve for containers
Inventor: SCHUETZ UDO
IPC: B65D51/16
Filed: 1998-12-09
Abstract: The safety valve (1), which is used, for example, for the internal plas-tic container of a pallet container for the transport and storage of liquids, consists of an aerating unit (2) and a venting unit (3), which are integrated into a valve housing (4), designed as a threaded plug.        When negative pressure develops in the internal container of the pallet container during the removal of liquid, the valve membrane (11) of the venting unit (2) opens, so that air can flow through the safety valve (1) into the container in the direction of arrow a.        The stiffness of the valve plate (45) of the venting unit (3) of the safety valve (1) is calculated in such a way that a positive pressure of, for example, 80 mbars can build up in the inside container, as a result of which the container is stabilized. When the pressure in the container exceeds the limit, the valve plate (45) opens, so that air or gas can escape from the con-tainer through the safety valve (1) in the direction of arrow b.
Patent CA-2255528-A1 (CA)
Title: Clip driver
Inventor: SATO HISAO
IPC: A61B17/128
Filed: 1998-12-07
Abstract: A clip driver for driving elastic clips each having have a back portion, and abutment portions for clipping edge portions of sheet-members between the opposite ends of the abutment portions, comprises: a casing body for accommodating said clips and including a sheet-member insertion inlet formed at a front end, a clip insertion inlet formed at a rear end, a longitudinally extending opening formed in a front end upper surface, a clip path formed so as to extend from said sheet-member insertion inlet to said clip insertion inlet, and clip stopper portions for engagement with said clips so as to allow said clips to advance but prevent said clips from retreating; clip opening springs disposed in the vicinity of said sheet-member insertion inlet for opening a nip between said abutment portions of the frontmost clip; an operation knob longitudinally movably fitted into said opening for feeding the frontmost clip in said clip path toward said sheet-member insertion inlet over said clip opening springs by means of the front end of said operation knob; a feed member movable together with said operation knob and having feed protrusions which make a second and following ones of said clips advance simultaneously when said feed member advances, while said feed member can retreat without making said advanced clips retreat by said feed protrusions; and an elastic member always elastically biasing said operation knob and said feed member toward the rear end of said casing body.
Patent CA-2255615-A1 (CA)
Title: Compositions comprising conjugates of cis-docosahexaenoic acid and docetaxel
Inventor: SWINDELL CHARLES S
IPC: A61K47/48
Filed: 1997-05-22
Abstract: This invention provides taxanes that are conjugates of cis-docosahexaenoic acid and taxotere. The conjugates are useful in treating cancer.
Patent CA-2259519-A1 (CA)
Inventor: NOVAK EGON
IPC: G01N33/92
Filed: 1997-07-03
Abstract: A method of determining in an animal the ratio of serum campesterol to the level of beta-sitosterol comprises the steps of taking a serum sample, determining the campesterol level therein, determining the beta-sitosterol level therein, dividing the campesterol level by the beta-sitosterol level to form a campesterol/beta-sitosterol ratio, and comparing the campesterol/beta-sitosterol ratio with that of a normal control, wherein the improvement comprises selecting the campesterol/beta-sitosterol ratio as an indicator and correlating the ratio to the risk of the animal having an increased risk of cardiovascular and related diseases.
Patent CA-2262961-A1 (CA)
Inventor: SCHMIDT HOWARD J
IPC: B60N2/90
Filed: 1998-06-02
Abstract: L'invention concerne un système de support des lombaires réglable pour siège de véhicule (10), lequel système comprend une cellule pneumatique (18) gonflable, ou des cellules couplées via une conduite d'air (140) à une pompe (22) à membrane motorisée. Le clapet de sortie (76) de la pompe se présente sous la forme d'un clapet "parapluie" (80), qui sert non seulement à fermer hermétiquement la pompe lors de la course d'admission, mais aussi, étant donné sa configuration, à constituer le seul joint hermétique entre la cellule pneumatique et la pompe, ce qui évite d'avoir un clapet anti-retour externe séparé entre la pompe et la cellule pneumatique pour éviter les fuites de la cellule pneumatique une fois pressurisée.
Patent CA-2267887-A1 (CA)
Title: Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream
Inventor: MEILCHEN MELCHIOR A
IPC: C08G2/12
Filed: 1997-10-17
Abstract: Disclosed is a method to manufacture high purity acetic acid. Although described in relation to that produced by a low water carbonylation process the present invention is applicable to other mechanisms for production of acetic acid which results in formation of permanganate reducing compounds such as acetaldehyde, propionic acid, and alkyl iodide impurities in intermediate process streams. It has been found that permanganate reducing compounds and alkyl iodides may be conveniently removed from a light phase of an intermediate stream in the reaction process by employing a multiple distillation process coupled with an optional extraction of acetaldehyde. The distillation process involves first distilling a light phase to concentrate the permanganate reducing compounds, and in particular the acetaldehyde, and then separating the permanganate reducing compounds and alkyl iodides in a second distillation tower. The second distillation serves to remove the permanganate reducing compounds and alkyl iodides from methyl iodide, methyl acetate, and methanol mixture. As an optional third step, the twice distilled stream may be directed to an extractor to remove any remaining quantities of methyl iodide from the aqueous acetaldehyde stream to obtain acetic acid as a final product in greater than 99% purity.
Patent CA-2268557-A1 (CA)
Title: Method and apparatus for dual string well tree isolation
Inventor: DALLAS L MURRAY
IPC: E21B33/047
Filed: 1999-04-08
Abstract: A dual string well tree isolation apparatus includes two assemblies each having a high pressure valve and a high pressure tubing which are respectively inserted into the vertical passage of a dual string well tree, and a swedge for connection to the dual string well tree for supporting one of the assemblies. The swedge vertically offsets one assembly from the other. The apparatus further includes a hydraulic cylinder for inserting the high pressure tubings and cylinder support rods for removable attachment of the hydraulic cylinder to the dual string well tree. The hydraulic cylinder and the support rods are removed after each insertion of a high pressure tubing into a respective vertical passage to provide easy access to the high pressure valve of each assembly. The advantage is a safe, economical apparatus for simultaneous stimulation of a dual string well completion.
Patent CA-2269702-A1 (CA)
Inventor: GAFFNEY KEVIN
IPC: H04M3/53
Filed: 1997-10-23
Abstract: The present invention relates to methods and an arrangement (100) for receiving, storing and originating multimedia messages. An incoming message is transmitted to an in/out interface via a transport network (300). The message is stored in a message store (130), translated in a translation unit (150) into a format adapted to the presentation capabilities of receiver's (u) current terminal (400) and delivered to the receiver (u) over a user access interface (120) and an access network (200) with guidance from a location database (140). Earlier received messages, which are kept in the message store, can be accessed and edited via any standardised access network thanks to media translation in the translation unit (150). A multimedia message is originated by a user (u) in the system (100) via any access network (200) and the user access interface (120). The message is then stored in the message store (130), translated in the translation unit (150) and delivered to the destination through the in/out interface (110) and an appropriate transport network (300).
Patent CA-2271620-A1 (CA)
Title: Downhole magnetic debris collector
Inventor: MCNALLY BRENT
IPC: E21B31/06
Filed: 1999-05-14
Abstract: A debris collector to collect falling metallic debris within a borehole casing following a casing perforation process includes an elongate housing having opposite ends. One end of the housing is adapted to be coupled to a string of at least one perforating gun. A magnet assembly is disposed within the housing. The magnet assembly generates a generally evenly distributed magnetic field generally along the length of the housing to catch falling metallic debris. The magnet assembly includes a plurality of magnets each of which is separated by a pole of magnetizable material. Successive magnets are oriented to generate magnetic fields of opposite polarity. A centralizer collar is coupled to an opposite end of the housing to position the debris collector centrally within the casing.
Patent CA-2272226-A1 (CA)
Inventor: MLYNAR LUBOMIR
IPC: C08F265/06
Filed: 1999-05-18
Abstract: A hollow sphere organic pigment in which a core containing a void is encapsulated by a first shell polymer having a glass transition temperature greater than 50 °C, the first shell having polymerized thereon a second shell polymer having a glass transition temperature of -15 °C to -50 °C is provided.. Also provided is a paper or paperboard coating composition containing the hollow sphere organic pigment, a method for improving the strength and opacity of a paper or paperboard coating by using the coating composition dried, a coated paper or paperboard bearing the dried coating composition, and a method for improving the strength and opacity of paper or paperboard by incorporating a particular hollow sphere organic pigment into the formed wet sheet.
Patent CA-2272235-A1 (CA)
Title: Optical transmission system including optical restoration
Inventor: AL-SALAMEH DANIEL YOUSEF
IPC: H04B10/275
Filed: 1999-05-18
Abstract: An optical communications system employs a plurality of optical nodes interconnected in an optical ring transmission configuration by at least two optical transmission media, for example, optical fiber. The at least two optical transmission media, in this example, provide optical service transmission capacity and optical protection transmission capacity. Efficient restoration of optical communications between optical nodes in the optical ring transmission configuration, after an optical transmission media failure, is realized by employing an autonomous optical restoration arrangement and technique. To this end, each node autonomously controls an optical switch matrix in the node in effecting the desired restoration without the need of switch control signals transmitted from any other node in the ring, from a main controller or from a central controller. Specifically, each optical node in the optical ring transmission configuration has the capability to detect the presence or absence of optical signals at its input optical ports. Upon detecting a loss of optical signal on an incoming service capacity port, the node autonomously switches its optical switch matrix configuration to route a copy of its outgoing optical signal in a direction away from the fault. Then, upon detecting the presence of an optical signal on an incoming protection capacity port, the node autonomously switches its optical switch matrix configuration to supply the optical signal incoming on the protection capacity port to terminal equipment associated with the node. Additionally, each node has the capability of detecting a change of signal state at its protection capacity input ports. Upon a change from no signal to detection of an optical at a protection capacity input port, the node autonomously switches the switch matrix to pass the detected optical signal through to a protection capacity output port. A technical advantage of the invention is that through the autonomous switching of the node optical switch matrix transitions between switching states are faster thereby resulting in faster overall restoration in the optical ring transmission configuration.     Furthermore, restoration is still effected even if the node main controller is out of service for maintenance or otherwise.
Patent CA-2273156-A1 (CA)
Title: Novel 2-fluoroacrylic acid derivatives, novel mixtures of herbicides and antidotes and their use
Inventor: ZIEMER FRANK
IPC: C07C69/653
Filed: 1997-12-08
Abstract: The invention relates to novel .alpha.-fluoroacrylic acid derivatives of formula (I), wherein X, n, R1, R2 and R3 have the meaning defined in Claim 1. The invention further relates to combinations of active substances and antidotes, which contain .alpha.-fluoroacrylic acid derivatives and which are extremely well-suited for use in useful plant cultures as well as to the use of said substances and to a method for protecting cultivated plants.
Patent CA-2275081-A1 (CA)
Inventor: NEVLING JOHN
IPC: C08L3/08
Filed: 1999-06-15
Abstract: A biodegradable expanded starch product having low bulk density of less than 0.45 lb/ft3 and low dustiness of less than 1.0% at 10% relative humidity and 23°C comprising: a) modified starch having an amylose content of about 10 to 30% by weight and modified with about 2 to 6% by weight of bound alkylene oxide having 2 to 4 carbon atoms, and b) from about 8 to 15% by weight of hydrolyzed polyvinyl alcohol based on the weight of starch and having a degree of hydrolysis of from about 88 to 99%.
Patent CA-2275144-A1 (CA)
Inventor: VOYTA JOHN
IPC: C12N15/09
Filed: 1997-12-11
Abstract: L'invention concerne des sondes marquées par des précurseurs de 1,2-dioxétane qui peuvent être utilisées dans divers dosages. Ces sondes peuvent être de l'acide nucléique, de l'acide nucléique de peptide, des protéines comprenant un enzyme, un anticorps ou un antigène, un stéroïde, de l'hydrate de carbone, un haptène formant médicament ou non. La sonde est pourvue d'un précurseur de 1,2-dioxétane liée à cette dernière, généralement, par covalence, ou une forte liaison aux ligands. La fraction de précurseur de dioxétane est convertie en 1,2-dioxétane liée par exposition à l'oxygène singulet. Ces marqueurs de dioxétane se décomposent spontanément ou on induit leur décomposition par un déclencheur approprié pour générer de la lumière. Le déclencheur peut être un changement de pH, de température, ou un agent qui supprime un groupe de protection. Les formats d'analyse dans ces sondes marquées au 1,2-dioxétane et référents peuvent être utilisés pour comprendre des dosages par hybridation, des dosages immunologiques, des dosages sur gel et des électrophorèses de zone sur colonne capillaire.
Patent CA-2275707-A1 (CA)
Title: Immobilized enzyme and its use for the processing of triglyceride oils
Inventor: GEURTSEN JOHAN PAUL T
IPC: C12N11/02
Filed: 1997-12-03
Abstract: A process for the immobilization of an enzyme, comprising the steps: a.  selecting an amphiphilic enzyme for immobilization, b. preparing an emulsion comprising a continuous hydrophobic phase and a dispersed aqueous phase which aqueous phase contains the enzyme and material suitable to act as carrier for the enzyme when the next step is carried out, which material is partly dissolved and partly not dissolved in the aqueous phase, c. removing water from the dispersed phase until this phase turns into solid enzyme coated particles. A suitable aqueous phase may be prepared with a crude lipase fermentation liquid which includes inactivated biomass suitable to act as carrier. Processes which use the immobilized enzyme comprise ester re-arrangement, acidolysis and deacidification of edible triglyceride oils. These processes have a very low enzyme consumption.
Patent CA-2277729-A1 (CA)
Title: Adjustable rear suspension system for a tracked vehicle
Inventor: MALLETTE BERTRAND
IPC: B62D55/104
Filed: 1999-07-13
Abstract: An adjustable rear suspension system for a tracked vehicle comprises a slide frame for guiding a portion of the endless track, the slide frame having a pair of substantially parallel slide rails, the slide rails defining a longitudinal direction. The rear suspension system further comprises at least one spring-like member for urging the slide frame away from the chassis. A front suspension arm assembly has an upper end pivotally connected to the chassis and a lower end pivotally connected to the slide frame. A rear suspension arm assembly has an upper arm pivotally connected to the chassis and a lower end connected to at least one block capable of limited displacement in the longitudinal direction between a front stopper and a rear stopper. The rear suspension system further includes a rocker arm having an upper end connected to at least one block and a lower end pivotally connected to the slide frame. This rear suspension system compensates for rearward weight transfer caused by rapid forward acceleration of the tracked vehicle.