baber/WOPTO huggingface dataset:
Patent CA-2030689-A1 (CA)
Title: Barbiturate assay compositions and methods
Inventor: GROTE JONATHAN
IPC: C07K16/00
Filed: 1990-11-23
Abstract: The present invention provides methods and compositions for assaying biological samples, such as human serum, for barbiturates. In one aspect, analogs of barbiturates derivatized with fluorescein and analogs of barbiturates derivatized with immunogenic polypeptides are provided. The fluorescent analogs are employed as tracers in a competitive homogeneous immunoassay, i.e., a fluorescence polarization immunoassay, fox detecting barbiturates. The immunogenic analogs are employed to make anti-barbiturate antiserum of the invention for use in the immunoassay method. Intermediates for preparing the fluorescent and immunogenic analogs are also provided. Further provided are test kits, comprising a fluorescent tracer and an antiserum according to the invention, for analyzing biological samples by fluorescence polarization immunoassay for the presence of a barbiturate.      Further, an improvement is provided in immunoassays for analytes in serum, wherein a transfer means, such as a pipette, is used repeatedly to transfer different samples into the assay system. In the improvement, an aqueous solution of specified composition, comprising dimethylsulfoxide and an alkali halide, is used to wash the transfer means between transfers.
Patent CA-2031261-A1 (CA)
Title: Multifunctional viscosity index improvers having dispersant and antioxidant properties and lubricating oil composition containing same
Inventor: NALESNIK THEODORE E
IPC: C08F8/32
Filed: 1990-11-30
Abstract: MULTIFUNCTIONAL VISCOSITY INDEX IMPROVERS HAVING   DISPERSANT AND ANTIOXIDANT PROPERTIES AND LUBRICATING OIL COMPOSITION CONTAINING SAME              (D# 79,306 ABSTRACT OF THE DISCLOSURE      An  additive,  a  lubricating  oil  composition  which incorporates the additive, and a concentrate for a lubricating oil are disclosed.   The additive includes (a) a halogenated copolymer prepared from ethylene,  a C3 to C18 alpha-olefin, preferably a C3 to C8, or mixtures thereof, and at least one halogen, and (b) an amino-aromatic polyamine compound.  Most preferably, the copolymer is prepared from ethylene, propylene and at least one polyene.     The lubricating oil composition comprises a major amount of  an  oil  of  lubricating  viscosity  and  a  minor  amount, effective to impart viscosity index improvement, dispersancy and antioxidant properties to the oil,  of the prescribed additive.     The concentrate comprises a diluent oil of lubricating oil viscosity and from about 1 to about 50 weight percent of the prescribed  additive  based  on  the  total  weight  of  the concentrate.            D#79,306
Patent CA-2033607-A1 (CA)
Inventor: BARNES LIENEL J
IPC: C02F3/00
Filed: 1991-01-04
Abstract: ABSTRACT               TREATMENT OF AQUEOUS WASTE STREAMS        A process for treating sulphate-containing aqueous waste streams, which comprises anaerobic microbial reduction of the sulphate using sulphate reducing bacteria, while adding to the reaction mixture an alcohol as carbon/energy source. with concomitant microbial methanogenesis, e . g. in a sludge blanket reactor,  a cheap carbon source such as ethanol can be used to control treatment, to recover valuable heavy metals and sulphur, and produce an environmentally-acceptable effluent.
Patent CA-2035273-A1 (CA)
Title: Device for singularizing healds for warp-thread drawing-in machines
Inventor: BENZ RICO
IPC: D04B1/14
Filed: 1991-01-30
Abstract: The device contains a selecting member (21) for the healds (LI) fed in the form of a stack (LS), which selecting member (21) separates in each case the front- most heald (LI1) from the stack and makes it available for the drawing-in of the warp threads. The selecting member (21) is formed by a piston which can perform a stroke essentially transversely to the heald stack (LS), during the working stroke of which piston the healds (LI1) are transported from the heald stack (LS) into an intermediate position (ZP). A transfer means (24) for transferring the respective heald (LI1) to a transport unit (25) for transporting the heald to its drawing-in position is provided in this intermediate position (ZP).      All types of heald can thereby be selected from the heald stack, and neither a special preparation of the healds nor the use of a special type of heald is necessary. In addition, the heald separation and the further removal are completely uncoupled, which not only permits the use of means optimally adapted to the individual functions but also considerably simplifies the rectification of faults.
Patent CA-2038522-A1 (CA)
Inventor: NISHIJIMA KAZUYOSHI
IPC: B62D1/10
Filed: 1991-03-18
Abstract: ABSTRACT OF THE DISCLOSURE            In order to permit a steering wheel to be simply connected  to a  steering  shaft  having  a  frusto  conical tapered  portion,  a  serrated  or  splined  portion  and  a threaded portion, in a manner which permits ready adjustment of the wheels'  position with respect to the shaft,  the central boss of the steering wheel is divided into separate upper and lower boss members.  The lower boss member seats on the tapered portion and is rigidly connected with the steering wheel.  The upper boss member fits on the serrated portion  so  that  relative  rotation  is  prevented.    By tightening a nut on the threaded portion of the steering shaft, force can be applied through the upper boss member to the  lower one in a manner which produces a  frictional engagement between the lower boss member and the tapered portion  which  prevents  relative  rotation.     Various mechanical arrangements are provided between the upper and lower boss members to either limit the amount of relative rotation which can occur therebetween prior the tightening of the nut or control the relative rotation to the degree that accidental relative rotation which is not deliberately induced cannot take place, even in the absence of the nut applying  sufficient  force  to  prevent  relative  rotation between the shaft and the lower boss member.
Patent CA-2038729-A1 (CA)
Inventor: ODA KIYOSHI
IPC: A44B19/30
Filed: 1991-03-20
Abstract: A lockable slide fastener slider comprises an upper wing and a lower wing defining therebetween a guide channel for the passage of fastener coupling elements, a pull tab pivotably mounted on the upper wing and a locking member having a locking prong movable into and away from the guide channel.  A resilient means is provided in operative relation to the pull tab for urging the latter to lie substantially flat against the upper wing.
Patent CA-2039787-A1 (CA)
Title: Roof bolt with plastic sleeve and mechanical anchor
IPC: E21D21/00
Filed: 1991-04-04
Abstract: ROOF BOLT WITH PLASTIC SLEEVE AND MECHANICAL ANCHOR     ABSTRACT OF THE DISCLOSURE      A mine roof anchor assembly usable with a quick-setting resin cartridge inserted into a mine roof opening is disclosed and includes a partially threaded elongated bolt having a first end,  a mechanical  anchor,  such as a bail-type or mechanical expansion type, at a threaded end, and a mixing element, such as a coil, having an upper end attached to the bolt and positioned external of and surrounding a length along the bolt.   The bolt receives a frangible hollow plastic sleeve which is positioned about  the  threaded portion and  extends below the mechanical anchor toward the bolt head.  A stopping element attaches to the bolt below the mechanical anchor toward the first end, whereby the frangible sleeve is sandwiched between the stopping element and the mechanical anchor.  A shaft can also be coupled to the first end extending the length of the anchor assembly.
Patent CA-2041199-A1 (CA)
Inventor: BOREL EDOUARD
IPC: B41F33/00
Filed: 1991-04-25
Abstract: The invention concerns a device for monitoring the operating pressure  between  the  two  rotary  cylinders  (PP,  PB)  in  a machine used for processing matter such as webs, ink films or similar,  for  instance  on  an  offset  printing  machine.  The device includes a pneumatic jack (2), on which the outlet rod (20)  of  the piston  (21)  acting  on the positioning of each bearing (12) supporting the end of the central shaft (14) of a  cylinder  (PP).  When  a  chamber  (22)  of  the  jack  (2)  is subjected  to pressure  (b1),  the  rod  (20)  acts  against the shift of the bearing (12), which would entail an increase of the  distance  between  the two cylinders  (PP,  PB)o A fixed, though, adjustable,  arresting  piece  (4)  acts  against  the shift of the bearing (12) which would cause the reducation of the distance between the cylinders (PP and PB).
Patent CA-2043610-A1 (CA)
Inventor: KANO TOSHIYUKI
IPC: H03K19/0175
Filed: 1991-05-30
Abstract: In a driving circuit supplied with an input signal having one of logic one and zero levels and producing an output signal through an output terminal to drive a load circuit connected to the output terminal, a first MOS transistor (26) is put into a first source-drain conductive state to produce a predetermined positive voltage (VDD) as the output signal when the input signal has the logic one level.  The first MOS transistor has a first channel between its source and drain terminals.  A second MOS transistor (27) is put into a second source-drain conductive state to produce a ground potential as the output signal when the input signal has the logic zero level.  The second MOS transistor has a second channel between its source and drain terminals.  Each of the first and the second channels has a restricted channel width to restrict source-drain currents flowing through the first and the second channels.  A subsidiary drive circuit (30) drives the load circuit during transition time interval each time when the input signal changes from one of the logic one and zero levels to another of the logic one and zero levels.
Patent CA-2045461-A1 (CA)
Title: Fluorophore-labeled cryopreserved cells for use as targets in cytotoxicity assays
Inventor: MALEY DERRICK T
IPC: C12N5/071
Filed: 1990-02-08
Abstract: Biological cells which are fluorophore-labeled can be stored frozen for a long period of time. After thawing the cells can be used as targets in fluorophore-release cytotoxicity assays.
Patent CA-2046989-A1 (CA)
Title: Dispenser having child-resistant nozzle assembly
Inventor: KNICKERBOCKER MICHAEL G
IPC: B05B11/00
Filed: 1991-07-12
Abstract: ABSTRACT OF THE DISCLOSURE      A child-resistant element, in the form of an overcap surrounds a rectangular-shaped nozzle at the nozzle end of a manually actuated liquid dispenser, the nozzle briny mounted for rotation between discharge open and closed positions.  The overcap has an opening in its end wall and is mounted on the nozzle for manual axial movement between extended and retracted positions and is rotatable together with the nozzle.  A flat suface of the dispenser body in the retracted position for resisting rotation of the nozzle from its closed position.  The overcap in its extended position permits rotation of the nozzle from its closed position to its open position.
Patent CA-2048002-A1 (CA)
Title: Reinforced multiple lumen catheter
Inventor: FENTON PAUL V JR
IPC: A61M25/00
Filed: 1991-07-26
Abstract: Disclosed is a flexible, reinforced, multiple lumen catheter. This catheter includes an elongated, flexible, tubular element extending about a central axis, and including embedded therein at least one filament extending in a helical path about the central axis. The inner surface of the tubular element defines an interior region . The catheter also includes an elongated divider element having elongated lateral edges. These edges are integral with, and extending from, portions of the inner surface of the tubular element. At least two lumens are defined in the interior region of the tubular element on opposing sides of the divider element. Also disclosed is a method for assembling the flexible, reinforced, multiple lumen catheter.
Patent CA-2053642-A1 (CA)
Title: Method and apparatus for tipping sutures
Inventor: PROTO GEORGE R
IPC: A61L17/00
Filed: 1991-10-17
Abstract: A method and apparatus for tipping surgical sutures which includes winding the suture around a drum while continuously monitoring the suture diameter in x and y directions and adjusting the tension on the suture to control the suture diameter as it is being wound. The drum is then placed in an apparatus which passes selected portions of the suture through a mist of cyanoacrylate tipping agent generated by ultrasonic atomization. The tipping agent quickly cures and the tipped portion of the suture may be cut to create a tipped end for insertion into a surgical needle to form a needle suture device.
Patent CA-2054117-A1 (CA)
Title: Powder pickup device with extended life
Inventor: SAVINO JAMES J
IPC: B05B7/14
Filed: 1991-10-24
Abstract: ABSTRACT OF THE DISCLOSURE            A powder pickup device has a tube formed of an elastomeric tube wall with an orifice therein receptive of powder from a vessel so as to direct powder into a carrier gas in a central passage in the tube.  A tubular shell supports the tube and has an aperture therein aligned with the orifice.  In another embodiment the tube is combined of a rigid tube and an elastomeric tube fitted tandemly in the shell.  The rigid tube extends to an inner end proximate the aperture and has the orifice situated therein.  The elastomeric tube extends from the rigid tube and is disposed so as to place a section thereof opposite the orifice.
Patent CA-2054153-A1 (CA)
Title: Displacement transducer
Inventor: BARDAS THEODOR
IPC: G01V3/08
Filed: 1991-10-24
Abstract: Displacement Transducer ABSTRACT OF THE DISCLOSURE       A displacement transducer suitable for use in a magnetic bearing measures the flux density between a pair of components and divides a signal indicative of the magnetomotive force between the components by the flux density signal to obtain a signal indicative of displacement.
Patent CA-2057062-A1 (CA)
Title: Slicing compressed blocks
Inventor: OWEN ROY A
IPC: B26D1/02
Filed: 1990-06-22
Abstract: A block of compressed, stratified material such as a bale (10) of tobacco is placed in a receptacle (40) which executes reciprocating motion. Movement of the receptacle (40) brings the bale (10) into engagement with a fixed blade (46) which splits the bale (10) between strata, the unsupported weight of the slice (48) being separated assisting the splitting. A photodetector (62) initiates the loading of a further bale (10) when uncovered. The further bale (10) is carried by an indexing conveyor (42) mounted on a wheeled chassis (64) which moves the conveyor (42) over the remainder of the bale in the framework (40) then retreats leaving the further bale (10) on top of the remainder.
Patent CA-2058123-A1 (CA)
Inventor: PARKER MICHAEL P
IPC: B07B4/02
Filed: 1991-12-19
Abstract: Apparatus for the separation of heavy and light particles from material which includes means for fluidising and agitating the material to cause heavy particles to sink from the acceptable material and comprising a deck adapted to receive material at a reception end and means for vibrating said deck to cause the material to move longitudinally along it to a discharge end, said deck having a number of longitudinally extending troughs separated by peaks and means for providing an upwardly directed air flow in the troughs characterised by means for causing two or more stratified material separation zones in each trough to classify the material two or more times.
Patent CA-2061844-A1 (CA)
Inventor: WESTHOFF JAMES A
IPC: E02D29/14
Filed: 1992-02-25
Abstract: A watertight chimney assembly prevents infiltration of water in the region between a manhole cover support frame and a concrete manhole assembly. The watertight chimney is comprised of a pair of telescoping sleeves each provided with a flange for mounting respectively to the top lip of a manhole assembly and the bottom surface of the flange on the cover frame a desired distance above the top of the manhole assembly to maintain the cover frame at proper grade. An O-ring seated within an annular groove provided in one of the tubular members provides a sliding watertight seal therebetween. The sleeve flanges are compressed between the frame and manhole assembly and contribute to the watertight seal. One of the sleeves is reversible to increase the telescoping range between a minimum and a maximum extension. In an alternative embodiment, the internal surface of the manhole opening constitutes one of the telescoping members. A sealing gasket may be arranged on either of the two telescoping members and may be seated within a groove or clamped against the manhole opening. The sealing gasket may be any one of a variety of cross-sectional configurations and can be inflatable, if desired. As another alternative embodiment, an anchoring flange of one of the telescoping sleeves may be embedded into the manhole opening. The cast-in sleeve may be formed of a resilient material and is clamped to the cooperating telescoping member.
Patent CA-2062540-A1 (CA)
Title: Puff pastry laminates
Inventor: VAN DER GRAAF LEENDERT M
IPC: A21D13/08
Filed: 1992-03-09
Abstract: F 7010 (R) Abstract A baked composite dough product comprising a puff pastry dough sheet having attached thereto, at least at one side, a sheet of pastry dough which acts as an anchoring layer for a moisture-barrier coating which is applied on to the pastry layer after baking.            The invention also relates to said baked products with a moist filling material applied on to the moisture-barrier coating.
Patent CA-2063726-A1 (CA)
Inventor: BRUSKI RICHARD S
IPC: C22C49/14
Filed: 1990-07-19
Abstract: A cast composite material is prepared from a modified aluminum-containing matrix and reinforcement particles mixed into the matrix. From about 15 to about 130, preferably from about 20 to about 50, parts per million of an element, preferably beryllium, that forms a more stable oxide than magnesium oxide is included in the matrix alloy. The stable-oxide-forming element reduces the amount and thickness of the aluminum oxide and other oxides formed at the surface of the melt, which otherwise may be mixed into the melt to cause microstructural irregularities in the matrix of the cast composite material.
Patent CA-2064287-A1 (CA)
Title: Aquatic organism blocking material
Inventor: NAKANISHI MOTOYASU
IPC: C09D5/14
Filed: 1992-03-27
Abstract: ABSTRACT OF THE DISCLOSURE An aquatic organism blocking material capable of pre-venting aquatic organisms from adhering to aquatic or fishing facilities or implements by a galvanic action.  The material includes two or more kinds of substances capable of forming an electrode system in the presence of an electrolyte, and a water absorptive resin on which the substances are carried.  The sub-stances may be in the form of a combination of metals different in ionization tendency such as copper and silver or a combination of copper and carbon black.   The material may take a form of powder or fibers.  The water absorptive resin may be polyvinyl alcohol.
Patent CA-2065232-A1 (CA)
Title: Damped high speed tire testing machine
Inventor: BEEBE JAMES C
IPC: G01M17/02
Filed: 1990-09-19
Abstract: A machine (9) for measuring force variation or imbalance of tires particularly at high speeds. A rotating roadwheel (10) is engaged by a tire (11) mounted on a spindle (12). Force sensing means, such as load cells, are operably interposed between the tire spindle (12) and a force sensor mount (47). To minimize the adverse effects of mechanical resonance of the machine on force measurement accuracy, the roadwheel (10) and/or the force sensor mount (47) are connected to ground through dampers (23, 32) which provide a damping ratio of at least about five percent and preferably higher. Where the force sensor mount (47) is to be supported by such damping means (32), the invention further contemplates interposing a large mass (13) between that damping means (32) and the force sensor mount (47).
Patent CA-2067056-A1 (CA)
Title: Mechanical interlock for a pair of electromagnetic switches
Inventor: DEVAULT BIRCH L
IPC: H01H50/00
Filed: 1992-04-24
Abstract: Abstract of the Disclosure An  interlock,  for  a  pair  of  electromagnetic switches, includes operating members which are pivoted by movement of armatures of the switches between off and on positions.  Ring segment cams are carried by the respective operating members along arcuate paths which intersect such that  movement  of  one  switch  out  of  the  off  position mechanically blocks movement of the armature of the other switch  out  of  the  off  position.    For  side  by  side electromagnetic switches, the operating members are directly confronting.  For other arrangements of the switches, such as one above the other, the operating member of one switch includes a first pivot member pivoted by the associated armature,  and a second pivot member on which the ring segment cam is carried, confronting the second operating member, and connected to and pivoted with the first pivot member by a connecting member.
Patent CA-2068218-A1 (CA)
Title: Interactive audio cassette device or similar article
Inventor: GOOD MICHELE A
IPC: G11B23/38
Filed: 1991-09-09
Abstract: A tape cassette (10) including interactive indicia (24) and (25) for providing visual entertainment while the tape (18) is be-ing played. Preferably, a first indicia (24) is provided on the outer side of the cassette (10) which comprises a scene. A second in-dicia (26) is provided on a reel (22) such that the second indicia (26) interacts with the first indicia (24) when the reels (20) and (22) are turned.
Patent CA-2068261-A1 (CA)
Title: Urea derivatives, processes for the preparation thereof and pharmaceutical composition comprising the same
Inventor: ITOH YOSHIKUNI
IPC: C07D307/81
Filed: 1992-05-08
Abstract: ABSTRACT OF THE DISCLOSURE         The  disclosure  describes  compounds  of  the formula:                                       (I) wherein  R1 is aryl which may be substituted with halogen, nitro, amino, lower alkylamino, lower alkoxy or acylamino, R2 is hydrogen; alkyl; cycloalkyl; or lower    alkyl    which    is    substituted    with cyclo(lower)alkyl,  cyclo(lower)alkenyl,  a  hetero-cyclic  group  or  aryl  optionally  substituted with substituent(s) selected from the group consisting of halogen, hydroxy and lower alkoxy, R3 is hydrogen,  lower alkyl or aryl which may be substituted with halogen, nitro, amino or lower alkylamino, R4 is hydrogen, halogen, lower alkyl, lower alkoxy or aryl which may be substituted with halogen, R5 is hydrogen, halogen, lower alkyl or aryl, A is a single bond or lower alkylene, and X is O, S or NH, provided  that  R3  is  aryl  which  may  be substituted  with  halogen, nitro,  amino  or  lower alkylamino, or R4 is halogen,  lower alkoxy or aryl which may be substituted with halogen,  when R2 is cycloalkyl,  and  pharmaceutically  acceptable  salts thereof.     The  preparation  of  these  compounds, pharmaceutical  compositions  containing  them  and their use as a medicament for treating hypochloles-terolemia,    hyperlipidemia,    atherosclerosis   or diseases caused thereby are also disclosed.
Patent CA-2068944-A1 (CA)
Inventor: HOFFMAN CHARLES J
IPC: E05F1/12
Filed: 1992-05-19
Abstract: A refrigerator cabinet has a door closing device integral with a door top hinge member to fit within the door. The mechanism includes a bearing member secured to the door and a cam member nonrotatably secured to the hinge pin below the bearing member and having a cam follower engaging a cam surface on the lower face of the bearing member.  A spring is secured around the lower end of the hinge pin to force the cam member upward against the bearing member and its cam surface, with the cam surface and a cam follower on the cam member being configured to provide a closing bias when the door is near the closed position and detent positions when the door is opened a predetermined amount.