baber/WOPTO huggingface dataset:
Patent CA-2187934-A1 (CA)
Title: Mechanism for opening and closing a resealable cartridge
Inventor: WEBER ANTHONY M
IPC: G03B27/32
Filed: 1995-03-29
Abstract: A mechanism for opening and closing a resealable cartridge (12) includes a base for receiving a cartridge, a roller shaft (48) for engaging a cover adhesively disposed on the cartridge (12), a motor (50) for rotating the roller shaft, and a slidable carriage that supports the roller shaft and the motor. The motor rotates the roller shaft in a first direction to peel the cover (22) away from the cartridge (12), and in a second direction to reseal the cover (22) to the cartridge. The motor (50) includes a rotor shaft, coupled in substantial alignment with the roller shaft (48), for applying rotational torque to the roller shaft without applying undesirable radial forces that can damage the cartridge cover, thereby extending cartridge life. The coupling of the rotor shaft also eliminates the need for a complicated gear train resulting in reduced size, ease of repair, and enhanced reliability. The roller shaft includes a compliant friction coating (168) that evenly distributes sealing force over the cover during closure. The compliant friction coating also produces added driving traction that helps the roller shaft drive the carriage during both the opening and closing operations, thereby avoiding stretching of the cover. The carriage is slidably coupled to the base, resulting in further size reductions. The mechanism is essentially modular in design, facilitating repairs and enabling replacement of the mechanism with a spare to reduce down time.
Patent CA-2188297-A1 (CA)
Title: Lactone stable formulation of camptothecin or 7-ethyl camptothecin
Inventor: HAUSHEER FREDERICK HERMAN
IPC: A61K47/10
Filed: 1995-04-18
Abstract: Camptothecin (CPT) and 7-ethyl camp-tothecin (ECPT), are poorly soluble in water. Because of their poor water-solubility, they have not been directly administered by par-enteral or oral routes in human patients for the purpose of inhibiting the growth of tumors. The invention provides a pharmaceutically ac-ceptable formulation in the form of an acidic solution or suspension comprising (1) CPT or ECPT, preponderantly in the desired lactone form (1a') (wherein R is hydrogen or ethyl) and (2) dimethylisosorbide or dimethylacetamide.
Patent CA-2189216-A1 (CA)
Title: Saw Tooth Attack Face and Edge Structure
Inventor: WILDEY ALLAN J
IPC: B23D65/04
Filed: 1996-10-30
Abstract: A square saw tooth having four cutting edges of the type which is rotatable about its axis on a saw disc to present a fresh cutting edge when the radially outermost edge wears out has carbide wear plates covering the high wear areas of its attack face and providing its cutting edges.  A wear plate is provided at each corner of the attack face, and each wear plate has a flat rear surface for attachment to the tooth body and a front surface of a complex shape, having plateau surface areas at the corners, where the plates are thicker, and one or more cylindrically curved concave surfaces which recede from the plateau areas toward the interior of the attack face, so that the plate recedes in thickness away from the plateau area.  This construction helps provide more uniform wear over the surfaces and edges of the attack face for a more efficient consumption of the wear plates.
Patent CA-2189826-A1 (CA)
Title: Horizontal loop storage unit
Inventor: RICHERT WITHOLD
IPC: B21C49/00
Filed: 1996-11-07
Abstract: A horizontal strip storage unit, particularly for sheet steel, includes a looping carriage which is movable on a frame at a variable distance relative to a stationary strip guide roller. The looping carriage has at least one guide roller for a strip storage loop whose length is variable. Several support carriages with support rollers are arranged between the strip guide roller and the looping carriage. A flexible endless drive element guided around guide rollers is connected to the looping carriage. The drive element is guided so as to interact with a drive wheel of each support carriage, wherein the travel mechanism of each support carriage relative to the travel path of the looping carriage is derived from the flexible drive element. A second flexible drive element is tensioned along the frame in the area of the path of movement of the support carriages, wherein the second flexible drive element is guided over a lower drive wheel, of each support carriage so as to interact with the drive element, and wherein the first drive wheel of each support carriage interacting with the first flexible drive element is kinematically connected through a gear unit to the second drive wheel.
Patent CA-2193175-A1 (CA)
Title: Suspended line for an optical fibre unit
Inventor: SUTEHALL RALPH
IPC: G02B6/48
Filed: 1996-12-17
Abstract: An installation 10 comprising a line 12 extending between and suspended from a plurality of spaced apart aerial suspension locations 14 defines a passage for an optical fibre unit.  The line comprises a plurality of elongate tensile resistant tubes 18 connected end-to-end by respective connectors 20.   The line  is secured to each suspension  location by respective securing means 22 which are secured to said line at two spaced apart locations 28, 30 thereon such that the portion 26 of said line between these locations is untensioned and includes a connector 20.  The securing means 22 is adapted to allow tensioning of the portion 26 of said line when the tensile load on the line adjacent thereto on either side of said suspension location reaches a first predetermined amount, and the connector  20  is  adapted  to  cause  the  end-to-end connection of the tensile resistant tubes 18 connected thereby to break when the tensile load on said portion reaches a second predetermined amount.  The first and second predetermined amounts are less than the tensile load for breaking the tensile resistant tubes and said second amount is no greater than said first amount.
Patent CA-2194524-A1 (CA)
Title: Receiving element for electrostatic printing
Inventor: CLECKNER MICHAEL DALE
IPC: C08J7/052
Filed: 1997-01-07
Abstract: A liquid toner printable thermoplastic film is provided. The film is coated with an ethylene-acrylic acid copolymer based coating capable of receiving electrostatic imaging with liquid toner. Optionally, the coating contains acrylic polymer. In a specific embodiment, the coating includes a major proportion of ethylene-acrylic acid and minor amounts of filler such as talc and silica. The coating can also include wax and/or pigment such as titanium dioxide. In a further embodiment, the carboxylate groups of the copolymer are neutralized with metal ions from Group Ia, IIa or IIb of the Period Table of the Elements, specifically, sodium. Label stock structures are also described.
Patent CA-2195090-A1 (CA)
Inventor: GREEN BRUCE A
IPC: C12Q1/68
Filed: 1995-07-13
Abstract: The invention relates to the isolation and cloning of the structural gene, hipP, for the NTHi pili serotype 5 and the LKP operon. The invention relates to DNA molecules capable of hybridizing to the DNA sequences of the Haemophilus influenzae genome related to the pili. The invention further relates to a DNA molecule which encodes a pili protein, particularly a tip adhesin protein. The DNA molecules of the invention can be used in a method for assaying a sample, such as a blood sample, for the presence of Haemophilus influenzae in the sample. Accordingly, the invention further relates to the use of the DNA molecules as a diagnostic. The invention also relates to a recombinant Haemophilus influenzae pili protein, such as a tip adhesin protein. The protein can be employed in a method for immunizing an animal, such as a human, as a therapeutic or diagnostic.
Patent CA-2197346-A1 (CA)
Inventor: RICHARD HERVE
IPC: A61K8/00
Filed: 1997-02-11
Abstract: Insoluble s-triazine compounds (I) of the following formula are new: in which R1, R1' and R1" are: where -R2 and R2' are 1-3C alkyl groups; -R3 is H, an 1-4C alkyl group, or a 1-4C alkoxy group; -R4 is a 1-12C alkyl group; -X1 is H or a phenyl group, possibly substituted by a halogen, a 1-4C alkyl group or a 1-4C alkoxy group. Also claimed is a composition (IV) to protect sensitive materials from UV radiation comprising (I). Also claimed is a method (V) of protecting sensitive materials from UV radiation comprising the application of (IV) to, or the incorporation of (IV) in, the sensitive material.
Patent CA-2199069-A1 (CA)
Title: Connector module, connector module kit and connector module and panel assembly
Inventor: WRIGHT JOHN O
IPC: H01R24/52
Filed: 1997-03-04
Abstract: A connector module, connector module kit and connector module and panel assembly are provided. The connector module includes a conductive plate having at least one aperture through which a wall of an insulator extends, the wall defining a cavity. A contact extends through the base of the insulator and into the cavity, the contact being spaced from the wall. The connector module may be easily attached to a panel by using tabs extending from the panel or a C-shaped clip which is attached to the wall.
Patent CA-2201152-A1 (CA)
Title: A monoclonal antibody to human ventricular myosin light chains
Inventor: JACKOWSKI GEORGE
IPC: C12N15/02
Filed: 1995-09-28
Abstract: A monoclonal antibody having high affinity to the cardiac isoform of human myosin light chains is described. The monoclonal antibody is prepared against a synthetic peptide from the amino terminal end of myosin light chain-1. The monoclonal antibody can be used as a reagent in an immunoassay system to identify blood, serum or plasma levels of myosin light chains. Such an immunoassay system can be used for diagnosing and quantifying myocardial necrosis and infarction.
Patent CA-2202104-A1 (CA)
Title: Mobile computer
Inventor: HONG PETER S
IPC: G06F1/18
Filed: 1997-04-08
Abstract: This computer structure provides a body-worn computer that  is easily  converted  into  a  conventional  or  laptop computer.   This body-worn computer has a compartment for enclosing  the  entire  PC  card  being  used,  and  a  second compartment for housing a removable hard drive.  Also in the housing of this computer are located an opening for an IrDA transceiver and offset connections for protecting connectors to peripherals.
Patent CA-2202667-A1 (CA)
Inventor: O'DONNELL RICHARD
IPC: E06B7/14
Filed: 1997-04-14
Abstract: A window or door drain at the base of an extruded window or door sash or frame. A rectangular frame having a peripheral front flange defines a front drain opening for abutment against a wall of the sash or frame in which a flap having a planar rear surface and a front surface is pivotally mounted for opening and closing the drain opening, the flap having upper and lower edges and side edges, and the flap upper edge being rounded with cylindrical lug extensions of the upper edge extending laterally of the flap side edges for insertion into round mating holes in side walls of the frame in proximity to the top wall of the frame. The flap pivots from a closed position on a diagonal rear wall upwardly to an open position adjacent the frame top wall in the front drain opening. The flap has a guide protrusion in each side edge for centering the flap during pivoting in the drain opening and the planar flap has a protrusion in the front surface adjacent the distal lower edge thereof for abutment against the frame top wall, whereby the flap is substantially unimpeded by surface tension when pivoted to an open position.
Patent CA-2203675-A1 (CA)
Title: L-erythrosyl nucleosides
Inventor: WEISS ALEXANDER L
IPC: C07H19/06
Filed: 1995-10-24
Abstract: This invention relates to .alpha. and .beta.-L-erythrosyl nucleosides, processes for their preparation, pharmaceutical compositions containing them and methods of using them to treat various diseases in mammals.
Patent CA-2204224-A1 (CA)
Title: Splash guard
Inventor: WARD DOUGLAS K
IPC: B62D25/18
Filed: 1997-05-01
Abstract: A splash guard is disclosed which adapted to fit any one of a set of vehicles having fender wheel well opening curvatures falling within a predetermined rangewhile providing an aesthetic appearance of being custom molded for any vehicle of the set on which the splash guard is intended to be mounted. The splash guard includes a mounting section for connection to a fender, a splash arresting section connected to the mounting section and extending downwardly from the mounting section when the splash guard is in use, and a flange section connected to the mounting and arresting sections. The flange section includes a pleated portion enabling enhanced flange deformation to accommodate a wide range of vehicle configurations.
Patent CA-2206228-A1 (CA)
Title: Improved preloaded joining link
Inventor: BRUCE PETER
IPC: F16G15/04
Filed: 1995-11-28
Abstract: A chain joining link (1) comprises an assemblage of disassemblable parts enabling the link (1) to be fitted on two adjacent chain sections, the assemblage comprising U-shaped end members (2) to retain said chain sections, the U-shaped members (2) including recesses (7) receiving flanges (4) whereby the members (2) are joined for assembly of the link. Each recess (7) has a width greater than that of the corresponding flange (4), and the width difference (gap) is accommodated by a wedge (8). The wedge (8) is fitted into the gap so as to preload the link by a predetermined amount and to this end the wedge (8) is first placed in the gap to a first position with no force fitting, and thereafter the wedge (8) is forced a predetermined distance from said first position to a second position so causing a compressive preload in the flange (4) and a tensile preload in the material surrounding the recess (7). Assembly is completed by the fitting of a columnar stud (15). A special tool is provided for movement of the wedge (8) to the second position. Also means (13) are provided to facilitate release of the wedge (8) to the first position for link dissassembly. The arrangement enables the required preload without the need for costly precision in the formation of the flange and recess.
Patent CA-2206953-A1 (CA)
Title: Valve arrangement
Inventor: GONSIOR WOLFGANG
IPC: F16K41/02
Filed: 1997-05-21
Abstract: A valve arrangement contains a housing (2) and a shut-off element (8) with which a shaft (10) is rotatably coupled, the passage of the shaft through the housing (2) being sealed by means of sealing elements (32). The valve arrangement is to be improved to the effect that, with little constructive expense, the leakage rate can be minimized and strict safety requirements can be satisfied, the valve arrangement being provided in its interior with a lining (20, 21). It is proposed that, as an option to the first sealing element (32), which is disposed in an annular space between the shaft (10) and the housing (2), a second sealing element (42) is disposed at least partially within a ring (3) joined to the housing (2). The lining (20) of the housing (2) reaches at least as far as the first sealing element (32) which is directly in contact with the lining (20), the first sealing element (32), and if necessary the second element, being compressible by means of a bushing (48) movable in the direction of the axis of rotation (14) of the shaft (10).
Patent CA-2208279-A1 (CA)
Title: Additive composition for diesel fuel for engin driven vehicles
Inventor: LOZZI ORLANDO
IPC: C10L1/14
Filed: 1997-06-10
Abstract: The  invention  concerns  a  composite  additive  for diesel   fuel   for   engine   driven   vehicles   containing dimethylcarbonate,  ethylic aldehyde and ethyl nitrate mixed together. The composite additive is added to the diesel fuel in an  effective  quantity  from  4  to  5  v/v%  to  improve the combustion of said diesel fuel in endothermic Diesel cycle engines.
Patent CA-2212652-A1 (CA)
Title: Method of and apparatus for expanding tobacco
Inventor: WILHELM DOUGLAS EDWIN
IPC: A24B3/18
Filed: 1997-08-08
Abstract: A method of and an apparatus for expanding tobacco, particularly tobacco impregnated with solid carbon dioxide are disclosed. The apparatus comprises an arcuate, generally C-shaped duct for conveying the tobacco material in a hot gaseous medium to sublimate the solid carbon dioxide and expand the tobacco. The duct has a non-circular cross-section, preferably a rectangular cross-section, with a high width-to-depth ratio and an increasing depth from the inlet to an intermediate portion of the duct then a decreasing depth from the intermediate portion to the outlet of the duct. A winnower device infeeds the tobacco material into the duct adjacent the throat of a venturi section connected to the inlet of the conveying duct. A tangential separator with an adjustable baffle at the inlet thereof for controlling velocity in the separator is used to separate the expanded tobacco from the gaseous medium.
Patent CA-2212950-A1 (CA)
Title: Power control circuit for a radio frequency transmitter
Inventor: RICH RANDALL WAYNE
IPC: H03G3/30
Filed: 1997-08-13
Abstract: A gain controller (130) for a radio frequency (RF) transmitter (102) controls a power level of a signal (123) transmitted within a predetermined range of output power levels. The gain controller (130) provides the first gain control signal (131) and the second gain control signal (133) responsive to an output power level control signal (150). The first gain control signal (131) controls a gain of a first variable gain stage (144) to vary the power level of the transmit signal (115) at an intermediate frequency causing the output power level of the transmit signal (123) to vary over a lower range of the predetermined range of output power levels. The second gain control signal (133) controls a gain of the second variable gain stage (120) to vary the power level of the transmit signal (121) at a radio frequency causing the output power level of the transmit signal (123) to vary over an upper range of the predetermined range of output power levels. The power control circuit (130) is advantageously utilized in a code division multiple access (CDMA) radiotelephone (100) to provide power control over an 85 dB range of power levels while minimizing sideband noise emissions, current drain, and complexity of the RF transmitter (102).
Patent CA-2214168-A1 (CA)
Title: Electrolytically deployable braided vaso-occlusion device
Inventor: HO LIEM
IPC: A61L31/00
Filed: 1997-08-27
Abstract: This is a braided tubular device used in the occlusion of various lumen or cavities in the body. In particular, it may be used to form an endovascular occlusion. Most desirably, it is braided of a majority of super-elastic alloy ribbons and therefore is both inherently non-stretching and most difficult to permanently deform. It may be deployed using an electrolytically severable joint. A radio-frequency modulated current may optionally be applied to the device after its placement in the body. The elongated device preferably is insulated along its length to optimize its occlusive activity without harm to the body.
Patent CA-2215042-A1 (CA)
Title: Assay reagents and devices
Inventor: PERCIVAL DAVID ALAN
IPC: G01N33/58
Filed: 1997-09-10
Abstract: A reagent useful in immunoassays, comprising a direct particulate level co-sensitised with a specific binding agent having specificity for an analyte or analyte analogue and with a non-specific protein which can participate in a control reaction with another specific binding agent which does not bind to the first specific binding agent nor participate in the formation of a complex by means of which detection of the analyte or analyte analogue is accomplished. Preferably the first specific binding agent is an antibody raised in a first species and the non-specific protein is an immunoglobulin from another species. Optionally, the reagent additionally comprises a second population of the direct particulate label sensitised solely with the non-specific protein.
Patent CA-2216088-A1 (CA)
Inventor: FALCARO STEVEN M
IPC: B63B59/04
Filed: 1996-03-15
Abstract: A system (10) for discouraging and inhibiting marine growth onto a boat's underwater hull surface comprising a plurality of sections of foam filled PVC  pipe (11) tied together to form a flotation frame, an envelope (17) of flexible, polyethylene bubble wrap material of a size and shape to enclose the underwater part of a boat's hull, and affixed to and supported by the flotation frame, a sprinkler hose (14) affixed to the flotation frame for injecting fresh water for washing the boat's underwater hull, and a plurality of drain/check valves (15) mounted in the envelope (17) for eliminating the washdown water in the envelope.
Patent CA-2216143-A1 (CA)
Title: A drill bit
Inventor: BIRK RUDI
IPC: B23B35/00
Filed: 1997-09-19
Abstract: A masonry drill bit  having an active diameter of D, comprising a shaft and a tip 1 for engaging a workpiece, wherein the tip 1 is formed with a plurality of stepped portions shaped to cut a workpiece as the drill bit rotates. By virtue of the drill bit tip 5 configuration as described and claimed herein, a masonry drill bit 1 having improved performance is provided.
Patent CA-2221000-A1 (CA)
Title: Constant power battery charger
Inventor: LE HIEN
IPC: H02J7/00
Filed: 1996-04-25
Abstract: A power supply (10) for a rechargeable battery (12) in a portable computer system is disclosed which adjusts the level of charging current depending upon the current drawn by the portable computer system. The power supply (10) includes an AC adapter (14) which supplies input current for operating the computer system and for charging the battery (12). Sensors (42, 36, 32) are connected to the AC adapter (14), the battery (12), and an ouptut of the power supply (10) to detect the level of input current from the AC adapter (14), the level of charging current supplied to the battery (12), and the output voltage level of the power supply (10). A controller (20) is connected to each of the sensors (42, 36, 32) and monitors the input current level, the charging current level, and the output voltage level. The controller (20) generates a control signal which indicates whether any one of the levels has exceeded a respective predetermined maximum value. A charging current control circuit (21, 22, 26, 28) is connected to the controller (20) and to the battery (12) and controls current flow between the AC adapter (14) and the battery (12) based upon the control signal generated by the controller (20). When the computer draws less current, the battery charging current is increasing accordingly, thus using all of the power output from the AC adapter (14).
Patent CA-2222192-A1 (CA)
Inventor: RODRIGUE MARC
IPC: C12Q1/68
Filed: 1997-03-20
Abstract: A method for aqueous phase nucleic acid isolation from a sample, comprising a step of nucleic acid adsorption on a particulate substrate, is disclosed. The method comprises an adsorption reagent preparation step (a) providing an adsorption reagent that includes a sol consisting of an aqueous continuous phase and a dispersed particulate substrate phase including a functionalised particulate polymer prepared by polymerising (1) a first water-soluble acrylamide or acrylamide derivative monomer, (2) at least one cross-linking agent and (3) at least one second water-soluble, cationic and functional monomer, said polymer having a predetermined lower critical solubility temperature (LCST) of 25-45  DEG C; a contact step (b) wherein the adsorption reagent is contacted with the sample containing the nucleic acid; an adsorption step (c) wherein, to carry out the contact step (b), at least one parameter is selected for the reaction medium, said parameters being a pH no higher than 7, an ionic strength no higher than 10<-2> M, and a temperature lower than the polymer LCST; a separation step (d) wherein the dispersed phase is separated from the continuous phase, optionally after it has been observed that adsorption has occurred; and a desorption step (e) wherein the nucleic acid is desorbed from the particulate substrate by increasing the ionic strength until an ionic strength higher than 10<-2> M is achieved.