baber/WOPTO huggingface dataset:
Patent CA-2059781-A1 (CA)
Title: Preparation of catalysts
Inventor: LOK CORNELIS M
IPC: B01J23/75
Filed: 1992-01-21
Abstract: R 3101 (R) ABSTRACT            A process is described for the preparation of a hydrogenation catalyst comprising precipitating an insoluble compound of nickel from a solution of a nickel salt with an excess alkaline precipitating agent selected from mixtures of alkali metal hydroxides and alkali metal carbonates in a molar ratio of 1:3 to 3:1, thereafter adding a soluble source of alumina or silica carrier material, allowing the precipitate to age in suspended form and collecting, drying and reducing the precipitate.
Patent CA-2060203-A1 (CA)
Inventor: DULLAWAY GLEN A
IPC: F02B33/22
Filed: 1990-06-15
Abstract: An internal combustion engine power unit comprises two power cylinders (3) 4) spaced equidistant about a pumping cylinder (5). All cylinders operate on two-stroke cycles, the power cylinders (3, 4) having a phase difference of 180.degree.. Power piston asssemblies (13, 14) in the power cylinders (3, 4) drive crankshaft (1). Pumping piston (16) and separate crankshaft (2) are driven at twice the cyclic speed of the power pistons (13, 14) and crankshaft (1) through gear train (6, 7) between the respective crankshafts (1, 2). Air inducted into pumping cylinder (5) via intake ports (20) is compressed and passed alternately to power cylinders (3, 4) via valve controlled transfer passages (21, 24). All valves, ports and gas passages are found in a cylinder head (19). Timed fuel injection and ignition are provided. An engine may comprise one or more power units. There is also disclosed a turbo-charged diesel engine comprising two power units in "V" configuration.
Patent CA-2061620-A1 (CA)
Inventor: SCHOCH ELISABETH
IPC: C10N40/25
Filed: 1992-02-21
Abstract: The subject of the invention is the salts formed by a fatty amine with a mixture comprising at least one monocarboxylic acid RF(CH2)10COOH and at least one dicarboxylic acid of formula: 
<IMAGE>
 where RF represents a C4-C16 perfluoroalkyl radical. 
<??>These salts can be used as antiwear additives for lubricants.
Patent CA-2062192-A1 (CA)
Inventor: YARBERRY SCOTT H
IPC: H04B3/00
Filed: 1992-03-03
Abstract: ABSTRACT     A train communication and control system is described having the cars of the train connected by a two-wire train line running continuously from car to car. Each car has a transmitting circuit and a receiving circuit connected across the line. Any car may be selected to be a master unit. The selection of one car as a master unit disconnects the power sources of all other cars from the train line, leaving the master unit power source as the sole power source for the line. The master unit or any other car unit communicates with each other car by causing a high voltage ("mark" state or logic one) or a low voltage ("space" state or logic zero) to be on the train line. Each non-master car can receive a communication from a transmitting circuit, or can transmit to another car by applying a low impedance across the train line to change from a "mark" state to a "space" state. The power source consists of a voltage regulator with precision constant current limit. Output voltage is maintained substan-tially constant until a load greater than the rated current limit causes the power source to change to a substantially constant current regulator, whereby its regulated voltage falls rapidly to the "space" state voltage.
Patent CA-2063339-A1 (CA)
Title: Bead support system for use during tire manufacture
Inventor: DURAND JEAN-MARIE
IPC: B29D30/32
Filed: 1992-03-18
Abstract: BEAD SUPPORT SYSTEM FOR USE DURING TIRE MANUFACTURE        Abstract Bead portions  of a  tire  are  supported during tire manufacture by a bead support assembly  (100,  1100, 2100)  having relatively movable parts that cooperate to define an elongate, outwardly opening groove (200,  1200, 2200)  that receives and supports the bead portions  (B). The  relatively  movable  parts  include  a  flexible  cover (170,  1170,  2170)  that overlies a relatively rigid un-derlying support  (120,  1120,  2120).   The support  (120, 1120, 2120) gives the groove (200, 1200, 2200) its shape. The cover  (170,  1170,  2170)  overlies the support  (120, 1120, 2120) and engages bead portions (B) that extend into the groove (200, 1200, 2200).  The cover (170, 1170, 2170) has a wide central portion (182, 1182, 2182) that slides freely from side to side through the region of the groove (200, 1200, 2200) to maintain non-slip engagement between the cover (170, 1170, 2170) and such bead portions (B) as engage the cover (170, 1170, 2170), thereby enabling such bead portions  (B)  as extend into the groove  (200,  1200, (200)  to  "rotate"  through  a  limited  range of movement without causing malformation or distortion of the bead portions  (B).  Central portions (182, 1182, 2182) of the cover (170, 1170, 2170) are biased toward a selected side of the underlying support (120, 1120, 2120) so that, when the cover (170, 1170,  2170)  is not engaged by bead por-tions (B) of a tire, excess central portion material (182, 1182, is moved toward the selected side.  Interfit-ting spline-like formations  (150, 192;  1150, 1192; 2150, 2192) are provided on the cover (170, 1170, 2170) and on the support  (120,  1120,  2120)  for guiding side-to-side movements of cover material  (182,  1182,  2182)  material relative to the support (120, 1120, 2120).  These forma-tions  (150,  192;  1150,  1192;  2150,  2192)  also serve to prevent movement of cover (170, 1170, 2170) material rela-tive to the support (120, 1120, 2120) in directions that extend along the groove (200, 1200, 2200).
Patent CA-2064394-A1 (CA)
Inventor: LACOURSE NORMAN
IPC: A23L7/10
Filed: 1992-03-30
Abstract: A method for preparing a dry, extruded food, comprising the steps: (a) formulating a food for extrusion, said food comprising 1-15% water and an effective amount, up to 75% by weight, of a solubilized high amylose starch, selected from the group consisting of (1) a spray-dried, non-granular high amylose starch, characterized in that the starch is substantially non-crystalline, substantially non-retrograded, and fully predispersed; (2) a spray-dried, uniformly gelatinized high amylose starch in the form of granular indented spheres, with at least a majority of the granules being whole and unbroken, these starch granules being in the form of loosely-bound agglomerates or individual granules; (3) an enzymatically debranched soluble starch which comprises at least 65% amylose; (4) an enzymatically debranched, gelatinized starch, containing crystalline short chain amylose which comprises at least 65% amylose; (5) a pre-extruded, fully predispersed high amylose starch; and (6) a combination thereof; and (b) extruding the food at a temperature of up to 160 DEG C and a pressure of up to 35.2 Kg/cm<2> (500 psi), wherein the dry, extruded food is characterized by a crisp texture and by resistance to migration of water, oil and air into and out of the food.
Patent CA-2067006-A1 (CA)
Inventor: BROCKWAY ROBERT C
IPC: H05K7/14
Filed: 1992-04-24
Abstract: An equipment unit latch and an associated switch arrangement are advantageously employed to generate an action initiation signal upon initial movement of the latch toward physically removing the equipment from an equipment frame but prior to any movement of the equipment unit in an equipment frame in which it isinserted.  The physical shape and dimensions of the latch and the spatial relationship of the associated switch arrangement to the latch are such that the latch is allowed to move a sufficient distance toward removing the equipment unit from the equipmentframe in order to activate the switch to generate the action initiation signal prior to any movement of the equipment unit in the equipment frame.  In a specific embodiment of the invention, the switch includes a light emitter and a light detector.  Light from the emitter is inhibited from reaching the detector by the latch when the equipment unit is fully inserted in the equipment frame and the latch is in a closed position.  Upon movement of the latch, the light is no longer inhibited from being detected by the detector and the action initiation signal is generated after movement of the latch, but prior to any movement of the equipment unit toward being removed from the equipment frame.
Patent CA-2068798-A1 (CA)
Title: Therapeutic mattress cover and method of making
Inventor: THOMAS CHARLES
IPC: A47C27/05
Filed: 1992-05-15
Abstract: ?,051-009 THERAPEUTIC MATTRESS COVER AND METHOD OF MAKING                           ABSTRACT OF THE DISCLOSURE A  therapeutic mattress  cover  includes overlying  first a second  fabric  sheets  of  rectangular shape.   Laterally spaced  rows of first  stitching  interconnect  the  sheets  throughout  their  width.   A hollow rectangular skirt at its top edge overlies the perimeter of the sheets and depends  therefrom.   A second peripheral  stitching connects the top edge of the sheet with the corresponding two ends and one side of  the  sheets  defining  with  the  first  stitching  a  plurality  of transverse tubes with the second stitches closing one end of the tubes. A filler pad of a foam plastic resilient material is nested within each tube, and third stitching connects the remaining side of  the skirt to the remaining side of the sheets closing the other end of the tube.  The method of making a therapeutic mattress cover comprises stacking first, second and  third fabric sheets and applying a plurality of  laterally spaced  rows  of  first  stitching  interconnecting  the  sheets  throughout their width.   Superimposing a hollow continuous  skirt to overlie and surround  the  perimeter  of  the  sheets  and  applying  second  continuous peripheral   stitching  connecting   the   top  edge  of   the  skirt   to corresponding  two ends and one side of  the sheets  defining with  the first stitching a first set of transverse tubes along the length of the first and second sheets and a second set of transverse tubes underlying the first set of tubes with the second stitching closing one end of the tubes.  Inserting a filler pad of a foam plastic resilient material into each tube and applying third stitching connecting the remaining side of the skirt to the remaining side of the sheets.
Patent CA-2068928-A1 (CA)
Title: Vacuumized internal sizing ring assembly
Inventor: STANEK THOMAS G
IPC: A22C11/02
Filed: 1992-05-19
Abstract: ABSTRACT Internal sizing ring assembly and method for its use on a stuffing horn to extract air from within a tube-like casing having a closed end during stuffing operations, includes a sizing ring having an inner mounting surface adapted to conform to the outer surface of the stuffing horn, a peripheral casing-expanding surface to expand the casing into an open configuration, and front and back surfaces; and vacuum means defined by at least one port extending through the sizing ring and a longitudinally extendable tube connected to the port and in cooperation with a vacuum source.  The internal sizing ring assembly can further include a hollow mold having an internal cross-section configured to slidingly receive the sizing ring with the casing effectively sealed between the two for producing shaped products substantially free of air voids.
Patent CA-2069183-A1 (CA)
Title: Log-splitting tool
Inventor: STUDER BENJAMIN
IPC: B27L7/04
Filed: 1992-05-21
Abstract: ABSTRACT OF THE DISCLOSURE:           Disclosed is a log-splitting tool in the form of a conical continuously threaded screw auger, comprising a front  driving  section  which  defines  an  outer  conical threaded surface having a predetermined tapering angle, an intermediate section which defines an outer frustoconical threaded surface having a tapering angle smaller than the above-mentioned predetermined angle and a rear section which defines an outer frustoconical threaded surface having a tapering angle greater than this predetermined angle.  The above angles may be, respectively, about 16°, 10° and 20°. Also disclosed is a log-splitting machine which comprises a bench having a working table, a log-splitting tool of the type described above and a log-opener fixed to the table beneath the tool, rearwardly of the tool front section.  The log-opener is formed of a vertical wall that extends axially of the tool and has a vertical pointed leading edge at one end and a pair of opening ears at the other end.  Each of the ears projects laterally angularly from one side of the wall.
Patent CA-2071908-A1 (CA)
Title: Antibody antagonists of human interleukin-4
Inventor: RAMANATHAN LATA
IPC: C07K7/08
Filed: 1990-12-18
Abstract: Two kinds of antibody antagonists of the binding of human IL-4 to cellular receptors are provided by this invention. Some of the antagonists bind to specific regions of IL-4 which are believed to be involved in interactions between IL-4 and its receptors. Because of this specific binding by the antibodies to the IL-4, the binding of the IL-4 to the receptors is substantially inhibited. The other antibody antagonists of the invention are anti-idiotypic antibodies which, while lacking IL-4 activity, appear to mimic IL-4 and to compete directly with it for binding to the cellular receptors.  Polypeptides used to make the antibody antagonists are also provided, together with methods for using the antagonists to inhibit the binding of IL-4 to its cellular receptors.
Patent CA-2074384-A1 (CA)
Inventor: LANCE RAYMOND E
IPC: E21B19/22
Filed: 1992-07-22
Abstract: Apparatus for injecting and withdrawing a length of flexible cylindrical tubing into and from a well bore comprises first and second sets of gripper shoes that are moved around first and second endless paths, respectively. The paths include first and second parallel sections disposed on opposite sides of a length of the tubing, the gripper shoes being pressed against the tubing with sufficient force to hold the tubing therebetween. Each gripper shoe includes: a base portion and at least two gripper elements each having cylindrical gripping surfaces. Each cylindrical surface has a radius of curvature corresponding to the outer surface of the tubing. At least one of the gripper elements is connected to the base member in a manner permitting movement of the element relative to the base portion between a closed position where the cylindrical gripping surface engages the tubing and an open position that facilitates engagement and disengagement of the gripping shoe elements with the tubing.
Patent CA-2077338-A1 (CA)
Title: Hybrid compound purification
Inventor: ESTIS LEONARD F
IPC: C07K14/54
Filed: 1991-02-26
Abstract: A method for purifying from a mixture a hybrid compound which contains a portion of IL-2, which portion includes at least a region of the IL-2R binding domain of IL-2, which region is effective to cause the hybrid compound to bind to cells containing an IL-2R.  The method includes passing the mixture containing the hybrid compound over a column having attached thereto molecules consisting of or containing a complex sugar moiety with affinity for the hybrid compound, and eluting the hybrid compound with a suitable eluant. The invention also features related complexes of the hybrid compound and assays for the hybrid compound.
Patent CA-2079677-A1 (CA)
Title: Purified hcv and hcv proteins and peptides
Inventor: BURK KENNETH H
IPC: A61K39/29
Filed: 1991-04-02
Abstract: Intact hepatitis C virus (HCV) particles, purified HCV proteins, and glycopeptide antigens specific to HCV particles are disclosed. The virus particles, in inactivated or attenuated form, are useful in a vaccine. The purified proteins, and glycopeptide antigens are useful in a diagnostic system, for detection of human HCV  antisera, and in vaccine compositions. Also disclosed are antibodies specific against the glycopeptide antigens.
Patent CA-2082521-A1 (CA)
Title: Thermo-plastic heat exchanger
Inventor: SEITZ DAVID E
IPC: H05B3/82
Filed: 1991-05-09
Abstract: A flow-through instantaneous fluid heater system (10) designed to satisfy the need for a heater not limited by being connected to a storage tank and which can be made using a plastic casing (42, 62) incorporates cool-down when out of service and features of venting and simplified flushing and draining. The system incorporates the use of one or more compartments (40, 60) usually assembled in two compartment modules connected in series. Each compartment includes a casing (42, 62) having a hollow cylindrical interior region. An inlet aperture (44) is located at one end of the casing and an outlet aperture (46) is located at the other end of the casing. The lower end of each casing is closed by a removable base (80) and the upper end of the casing is closed by a top plate (85) and a heating element (140, 160). The heating element (140, 160) is positioned axially in the interior region of the compartment. A control system (200) uses temperature comparisons to detect flow through the system to determine whether the heating elements (140, 160) should be activated to maintain the fluid at a stand-by temperature or at an operational temperature.
Patent CA-2085438-A1 (CA)
Title: Method and installation for generating a high mass flow of unpolluted high enthalpy air
Inventor: SAVA PIERRE
IPC: G01M9/02
Filed: 1992-12-15
Abstract: ABSTRACT OF THE DISCLOSURE To generate an unpolluted high enthalpy air blast of several seconds duration a mass of feed air intended to constitute the high enthalpy air blast is preheated to a given temperature and stored at a given pressure in an elongate  confinement  tunnel  with  thermally  insulative walls.  A downstream orifice of the tunnel is kept closed and  a  blast  of  high-pressure  air  is  applied  to  the upstream end of the mass of feed air to compress it quasi adiabatically to  obtain a  feed air temperature of  at least  1 800 K.   The  downstream orifice  is  opened and application of the high-pressure air blast is continued whereby the mass of  feed air is  expelled through the downstream orifice  in  the  form  of  a  feed  blast  the temperature  of  which  remains  constant  for  several seconds.
Patent CA-2085695-A1 (CA)
Title: Internally constrained vane compressor
Inventor: HEKMAN EDWARD W
IPC: F01C21/08
Filed: 1992-12-17
Abstract: INTERNALLY CONSTRAINED VANE COMPRESSOR                 ABSTRACT OF THE DISCLOSURE         The present invention relates to an internally constrained vane rotary compressor employing a floating carrier ring, containing a plurality of non-continuous cam surfaces to guide a corresponding plurality of vanes about the interior of a stator, resulting in improved compressor performance.  The invention features a triple roller assembly operating in conjunction with the carrier ring to both guide and constrain each vane.  In addition, the invention describes a method for increasing the operating efficiency in rotary vane compressors.
Patent CA-2087088-A1 (CA)
Title: Electrochemically assisted excess heat production
Inventor: LIEBERT BRUCE E
IPC: G21B3/00
Filed: 1990-11-05
Abstract: Electrochemically assisted nuclear reaction that produces excess heat at elevated temperatures by immersing a metal in an electrolyte solution comprising a molten salt containing an alkali deuteride and applying a potential and current to the electrolyte and the metal to enhance diffusion of deuterium into the metal. A  recycling system utilizing metals that do not form compounds with lithium and also have very limited solubilities for lithium will increase the usefulness of the invention by recombining lithium with deuterium gas that has not diffused into the metal. Torched palladium having a very porous structure increases efficiency as well.
Patent CA-2087089-A1 (CA)
Title: Fuel hose breakaway unit
Inventor: ANDERSON PAUL B
IPC: F16L35/00
Filed: 1991-07-11
Abstract: A breakaway unit (48) which is adapted to be mounted in series flow relation with a fuel nozzle (42). The breakaway unit (48) comprises a flex section (50) which assures an axial transmission of forces to a valve section (52) which is separated when a vehicle drives away from a dispensing unit with the nozzle lodged in its fuel tank. The valve section comprises inlet (62) and outlet (64) couplers and means for releasable locking the couplers in an assembled relation. These means comprise fingers (112) which are flexed outwardly when a separating force exceeds a predetermined value. Garter springs (134, 146) embrace the fingers to accurately control at which the couplers will separate. The fingers engage angularly spaced lugs (114) which permit the fingers to be telescoped therebetween and then rotated to a locking position to facilitate reassembly of the couplers with a minimum of effort.  Alternate embodiments of the invention disclose other forms of spring means (537, 737) for accurately controlling the force at which the couplers will separate. Also disclosed are alternate constructions which minimize the effort required for reassembly.
Patent CA-2091503-A1 (CA)
Title: Apparatus for studying large sets of data
Inventor: BAKER BRENDA S
IPC: G09G5/36
Filed: 1993-03-11
Abstract: Interactive Methods and apparatus for studying similarities of values in very large data sets. The methods and apparatus employ a dotplot in an interactive graphical user interface to make the relationship between the similarities and the data set visible. A variety of filtering, weighting, and compression techniques make it possible to employ the dot plot with sequences of more than 10,000 tokens and tointeractively magnify the dot plot, change weighting and display quantization, and view the underlying data. Also disclosed is a technique which is employed in theapparatus for identifying long sequences of similar tokens. The apparatus is used in the study of large bodies of text and code.
Patent CA-2092424-A1 (CA)
Inventor: ROSENTHAL ROBERT D
IPC: G01J3/10
Filed: 1991-09-11
Abstract: A method and means for generating synthetic spectra allowing quantitative measurement utilizes dual chip alternatively energized IREDs with optical bandpass filter(s) passing two optical bands which could be combined with curvilinear interpolation to be utilized in a low cost small size quantitative measuring instrument.
Patent CA-2092955-A1 (CA)
Inventor: DASGUPTA SUNIL P
IPC: B01J13/00
Filed: 1993-03-30
Abstract: A composition containing a ketene dimer size for sizing paper that is a stable aquasol of positively charged colloidal silica, positively charged colloidal alumina, or positively charged colloidal zirconia, and also contains the ketene dimer, and a method for sizing a paper product of sheeted cellulosic fibers comprising treating the fibers with the said composition, are disclosed.