baber/WOPTO huggingface dataset:
Patent CA-2045808-A1 (CA)
Title: Bus protocol for high-performance processor
Inventor: STAMM REBECCA L
IPC: G06F12/08
Filed: 1991-06-27
Abstract: BUS PROTOCOL FOR HIGH-PERFORMANCE PROCESSOR     ABSTRACT OF THE DISCLOSURE    A pipelined CPU executing instructions of variable length, and referencing memory using various data widths. Macroinstruction pipelining is employed (instead of microinstruction pipelining), with queueing between units of the CPU to allow flexibility in instruction execution times. A wide bandwidth is available for memory access; fetching 64-bit data blocks on each cycle.  A hierarchical cache arrangement has an improved method of cache set selection, increasing the likelihood of a cache hit.  A writeback cache is used (instead of writethrough) and writeback is allowed to proceed even though other accesses are suppressed due to queues being full.  A branch prediction method employs a branch history table which records the taken vs. not-taken history of branch opcodes recently used, and uses an empirical algorithm to predict which way the next occurrence of this branch will go, based upon the history table.  A floating point processor function is integrated on-chip, with enhanced speed due to a bypass technique; a trial mini-rounding is done on low-order bits of the result, and if correct, the last stage of the floating point processor can be bypassed, saving one cycle of latency.  For CAL type instructions, a method for determining which registers need to be saved is executed in a minimum number of cycles, examining groups of register mask bits at one time.  Internal processor registers are accessed with short (byte width) addresses instead of full physical addresses as used for memory and I/O references, but off-chip processor registers are memory-mapped and accessed by the same busses using the same controls as the memory and I/O.  If a non-recoverable error detected by ECC   circuits in the cache, an error transition mode is entered wherein the cache operates under limited access rules, allowing a maximum of access by the system for data blocks owned by the cache, but yet minimizing changes to the cache data so that diagnostics may be run. Separate queues are provided for the return data from memory and cache invalidates, yet the order or bus transactions is maintained by a pointer arrangement.  The bus protocol used by the CPU to communicate with the system bus is of the pended type, with transactions on the bus identified by an ID field specifying the originator, and arbitration for bus grant goes one simultaneously with address/data transactions on the bus.
Patent CA-2046935-A1 (CA)
Title: High-rise building
Inventor: JORDAN PAUL
IPC: F24F5/00
Filed: 1991-07-12
Abstract: ABSTRACT                  HIGH-RISE BUILDING               A high-rise building comprises an exterior wall and a sheath, which is spaced in front of said wall. Verbically extending flow chan-nels are provided between said wall and said sheath and are open at their bottom and top and may be used to supply air to and from the interior of said building and to air-condition the interior of said building. To permit an effective control of the conditions of the ambient air adjoining said sheath, each of said flow passages communicates with the ambient air adjoining said sheath through a plurality of vertically spaced apart intake openings distributed throughout the height of said sheath.
Patent CA-2050281-A1 (CA)
Title: Heat exchangers
Inventor: HESSELGREAVES JOHN EDWARD
IPC: F28D9/02
Filed: 1990-05-02
Abstract: A heat exchanger includes a plurality of fluid pathways (13, 15, 16, 17, 18) in which at least some are defined between sur-faces of unperforated primary plates (10). Between the primary plates (10) are at least two secondary perforated (with perfora-tions (11)) plates (12), extending along the fluid pathway (13, 15, 16, 17, 18) with the perforations (11) in adjacent plates (12) be ing staggered. Adjacent secondary (12) and primary (10) sheets are in contact such that conducting pathways (19) are formed extending between the two primary surfaces whilst areas of secondary plates (12) not in contact with other secondary plates (12) institute secondary surfaces (22).
Patent CA-2052258-A1 (CA)
Title: Emergency back-up vacuum system for lifter
Inventor: SCHMIDT ADOLF
IPC: B66C1/02
Filed: 1991-09-25
Abstract: The invention concerns a vacuum lifter to transport loads with an adhesion surface and comprises at least one suction head with at least one projecting annular seal on its suction side, where the vacuum chamber(s) enclosed by the annular seal(s) is (are) hooked up to a main vacuum source and where additionally a battery-fed emergency vacuum source is provided which can be started by an emergency switch. In order to avert as much as possible crashes when using such a vacuum lifter, a pressure pickup 67 is associated with the or at least one of the vacuum chambers 13 and is coupled in such a way with a malfunc-tion alarm 69 that when a preset limit pressure is exceeded during vacuum operation, the malfunction alarm 69 shall be turned ON.
Patent CA-2054834-A1 (CA)
Title: Boron carbide-reactive metal cermets having microstructure tailored by post-densification heat treatment
Inventor: PYZIK ALEKSANDER J
IPC: C22C29/06
Filed: 1991-11-01
Abstract: ABSTRACT       Boron carbide-reactive metal cermets can be prepared by consolidating a mixture of boron carbide powder and a particulate source of a metal that reacts with boron carbide to produce dense, soft, cermets in near net shape.  The cermets can be hardened to produce a final multiphase microstructure having increased fracture toughness and hardness by a post-densification heat treatment.
Patent CA-2055695-A1 (CA)
Title: Ca 195-like immunoreactive antigen from human amniotic fluid
Inventor: DUFFY THOMAS H
IPC: C07K2/00
Filed: 1991-11-15
Abstract: A CA 195-like immunoreactive antigen has been identified in human amniotic fluid. This material appears to perform the same as and quite likely have the same composition as CA 195. This patent also relates to the isolation, and use, of the CA 195-like material.
Patent CA-2056292-A1 (CA)
Inventor: KAWAUCHI YOSHIHIRO
IPC: H03G1/00
Filed: 1991-11-27
Abstract: The sound volume controlling apparatus comprises UP and DOWN keys  (42,  43)  depressed manually;  a time period detecting circuit  (39h,  39d) for detecting time period  from  when  the  duration  of  UP  or  DOWN  key depression reaches a predetermined value (e.g. 0.5 sec) to  when  the  continuous  key  depression  ends; a sound volume  value  deciding  circuit  (39e,  39f,  37a)  for changing the sound volume value during the time duration detected by the time period detecting circuit; and sound volume changing circuit (37b, 45) for changing the sound volume in accordance with the value decided by the sound volume value deciding circuit.        Since the sound volume is changed only after the key is kept depressed for a predetermined time period (e.g.  0.5  sec),  it  is  possible  to prevent  the  sound volume from being changed erroneously due to a short time touch to the keys.
Patent CA-2057057-A1 (CA)
Title: Interleukin-2 in treating birds
Inventor: FREDERICKSEN TOMMY L
IPC: A61P43/00
Filed: 1990-05-22
Abstract: METHOD OF TREATING ANIMALS                           Abstract A method of causing an animal to gain weight by administering that animal a T-cell growth factor comprising Interleukin-2 (IL-2) in an amount effective to cause that animal to increase in weight is disclosed.  A method of treating birds by administering birds in ovo avian IL-2 is also disclosed.  The method is preferably carried out on chickens with 30K chicken IL-2 on about the eighteenth day of incubation.  The method may be employed to increase the weight of treated birds after hatch.  A vaccine may optionally be administered concurrently with the avian IL 2.
Patent CA-2057535-A1 (CA)
Title: Fiber amplifier having modified gain spectrum
Inventor: HALL DOUGLAS W
IPC: H01S3/07
Filed: 1991-12-12
Abstract: Disclosed is a fiber amplifier system including a gain fiber having a single-mode core containing dopant ions capable of producing stimulated emission of light at wavelength .lambda.s when pumped with light of wavelength .lambda.p.      Absorbing ion filtering means is operatively associated with the gain fiber to alter the gain curve. If the absorbing ions are the same as the gain ions of the gain fiber, the system further includes means for preventing pump light from exciting the gain ions of the filtering means. The excitation prevention means may take the form of means for attenuating pump light. If the absorbing ions are different from the dopant ions of the gain fiber, such absorbing ions can be subjected to light at wavelength .lambda.p, but they will remain unexcited. Such absorbing ions can be used to co-dope the gain fiber, or they can be incorporated into the core of a fiber that is in series with the gain fiber.
Patent CA-2063959-A1 (CA)
Title: Mutual injection locking system and method for coherent light sources
Inventor: TAILLON YVES
IPC: H01S3/23
Filed: 1992-03-25
Abstract: ABSTRACT OF THE DISCLOSURE:      A  mutual  injection  locking system  and  method  is provided for locking at least two coherent light sources to a same operating frequency f1 and narrowing their linewidth for producing at least one output coherent light beam.  The system comprises an optical device with a resonant frequency equal to the frequency f1.   The optical device has: a resonator of resonant frequency f1 comprising a facultative nonlinear  optical  material;  first  optical  means  for inputting the input light beams generated by the sources into the resonator; second optical means for outputting from the resonator the effective output light beam or beams as a result of the input light beams; and third optical means for outputting from the resonator locking coherent light beams having a narrow linewidth and a frequency equal to the frequency f1, to be injected respectively into the sources to be locked in a way that each of the sources to be locked can receive one of the locking light beams that is derived from at least another one of the sources.   Thereby, the locking  light beams  can  lock  the  sources  to  the  same operating frequency f1 and narrow their linewidth in order to produce the output light beam or beams.
Patent CA-2064775-A1 (CA)
Inventor: DUSSEL CHRISTIAN
IPC: B65G35/00
Filed: 1991-06-21
Abstract: 2064775 9119685 PCTABS00106 L'invention concerne une installation pour le traitement d'une matière première se présentant sous forme pulvérulente telle que sulfate de calcium, en vue de préparer un liant hydraulique. Cette installation comprend une enceinte en forme de cloche qui contient une pluralité de bacs horizontaux superposés (4). Chaque bac est équipé de rotors transversaux (5) qui sont disposés les uns au voisinage des autres de façon à couvrir toute la longueur du bac. Ces rotors, dotés de palettes périphériques, sont entraînés en rotation de façon à assurer une mise en suspension de la matière et un cheminement de celle-ci le long du bac. Dans les étages supérieurs, la matière ainsi mise en suspension est chauffée, par conduction et rayonnement, par des nappes de chauffage (11) qui s'étendent entre les bacs. L'installation conforme à l'invention permet de réaliser un traitement thermique uniforme et contrôlé de la matière première pour obtenir un produit de caractéristique désirée.
Patent CA-2065046-A1 (CA)
Title: Polymer recycling by selective dissolution
Inventor: NAUMAN E BRUCE
IPC: C08J11/08
Filed: 1990-08-29
Abstract: A method for separating polymers from a physically commingled solid mixture containing a plurality of polymers comprises dissolving a first one of the polymers in a solvent at a first lower temperature to form a first preferably single phase solution and a remaining solid component. The solid component contains additional polymers which are not solvable to the solvent at the first temperature but which may be soluble at higher temperatures. The method includes subsequently heating the solvent to dissolve additional polymer from the solid component to form subsequent solutions. The polymers are then separated from their respective solution either using flash evaporation techniques when more than one polymer has been dissolved at a single temperature, or conventional techniques for extracting a polymer from a solvent in a solution.
Patent CA-2067968-A1 (CA)
Title: Rotational surgical instrument handle
Inventor: HASSON HARRITH M
IPC: A61B17/3211
Filed: 1992-05-04
Abstract: Ha?on-Pingleton-Thomson 1-4-5 Abstract of the Disclosure A rotational surgical instrument including a working head connected to a rotatable,  pencil-like handle.   The handle includes a casing with distal and proximal end caps, an elongated outer member extending into the casing, and a actuation link extending from the distal end cap through the casing  and  elongated member to  the  working  head.   An actuating mechanism is positioned distally from the distal end cap about the proximal portion of the elongated member for slidably actuating the working head between and open and closed positions.  A compression spring is included in the passageway of the casing around the actuation link between the proximal end cap and the proximal end of the elongated member  to  return  the  working  head  to  the  nonactuated position.  Keyed surfaces are included within the passageway of the casing and attached to the distal end of the casing and the proximal end of the elongated member for preventing rotation of the elongated member with respect to the casing and actuation link.  A spring is also positioned between the distal end cap and the actuating mechanism for varying the combined  tension  of the  two  springs  for  operating  the handle.  The variable tension spring is varied by rotating a knob of the actuating mechanism which adjusts the distance from the distal end cap.
Patent CA-2069068-A1 (CA)
Title: On-stream method for detecting erosion or plugging for manifolded feed nozzle systems
Inventor: WOLF HENRY A
IPC: G01F25/00
Filed: 1992-05-20
Abstract: ABSTRACT OF THE DISCLOSURE           A on-line  method  for detecting  erosion  or  plugging  for manifolded feed nozzle systems  which carry two-phase liquid/gas  flow by determining a liquid  flow parameter related  to liquid flow.   The method can determine whether  the erosion is at  the liquid nozzle  or the gas restriction orifice.  The amount of erosion or plugging can be quantified.
Patent CA-2074444-A1 (CA)
Inventor: LINNERT PETER J
IPC: F04D/
Filed: 1992-07-22
Abstract: Title COMBINATION LIFT PISTON/AXIAL  PORT UNLOADER ARRANGEMENT  FOR A SCREW COMPRESSOR                       Inventor PETER J. LINNERT                      Abstract An unloading arrangement for a rotary screw compressor includes discrete and different unloading apparatus associated with the male and female rotors respectively.  The unloading apparatus associated with the male rotor is an axial piston continuous unloader movably disposed in a bore which is remote from but in flow communication, through a series of ports, with the compressor's working chamber.  The unloading apparatus associated with the female rotor is a step unloader which, when opened, unloads the compressor in a single, relatively large capacity step.  The compressor is therefore capable of being unloaded both over a continuous operating range and in a discontinuous, stepwise fashion.  By duplexing compressors of this type, continuous capacity modulation of a multiple compressor system is made available over a large operating range without the employment of compressors unloaded by slide valve mechanisms.
Patent CA-2079818-A1 (CA)
Inventor: STURM WILFRIED
IPC: B29C48/495
Filed: 1991-03-28
Abstract: The invention relates to a process for manufacturing a multi-layer, preferable twin-layer composite of a polystyrene foam film and a coextruded unfoamed film, especially for further processing into labels or mouldings making use of the shrinking capacity of the films, in which a polystyrene material is extruded together with nitrogen as the blowing agent and a pore former from the nozzle (16) of an extruder (2) and the extruded material is blown below the softening point before cooling. In order to produce polystyrene foam film which is as aging-resistant and easily printed as possible with the greatest possible saving in material and as reliably as possible, the invention proposes that 1/30 to 1/50 nitrogen (measured in NL) of the weight of the film (expressed in grams per square metre) be used as the blowing agent per kilogram of foam film, together with a powdered mixture of sodium bicarbonate and citric acid, and that the rigidity/surface quality of the film be controlled by the blowing ratio.
Patent CA-2080680-A1 (CA)
Inventor: DALEY JOHN G
IPC: E06B5/01
Filed: 1992-10-15
Abstract: INSULATING COVER FOR ATTIC STAIR OPENING               ABSTRACT OF THE DISCLOSURE      The present invention entails an attic stair insulating cover made  of  a  strong,  lightweight  insulating  material  such  as polyurethane  having  a  first  insulating  section  and a  second insulating section that are attachable to form a main insulating section.  The insulating cover includes hinge assemblies that mount the insulating cover at the attic stair opening for positioning the attic stair insulating cover between an open and closed position.          Each hinge assembly includes a partially hollow hinge arm that is molded onto the insulating cover.  A removable axis pin connects the hinge arm to a block mounted adjacent to the attic opening.          The hinge assembly axis is horizontally spaced from the main insulating cover and is also vertically spaced above the attic floor.   A gasket recess  extends along a bottom edge of the insulating cover with a gasket fitted into the recess and extending therefrom.  A user positions the attic stair insulating cover by gripping a handle molded onto an inside portion of an insulating cover wall and having a palm rest with indented sections on opposite sides of the palm rest.
Patent CA-2085838-A1 (CA)
Title: Packaging for food products
Inventor: WEAVER EDMUND A JR
IPC: B65D81/32
Filed: 1992-12-18
Abstract: Disclosed is packaging which includes two separate compartments, a first compartment for storing a flowable product such as cheese spread, and a second compartment for storing a solid product such as crackers.      The first compartment, housing the flowable product, includes a lid having a scored portion which is broken upon bending of the packaging along a longitudinal bending region. To prevent unintentional discharge of the flowable product prior to its intended use, such as during shipping or other handling in which the flowable compartment may inadvertently be bent in the longitudinal direction, and thereby rupture the lid at the score line with the flowable product being dispensed therethrough, the flowable product compartment is reparably attached to the solid product compartment along a side of the flowable compartment perpendicular to the longitudinal bendable region to increase its rigidity to bending in the longitudinal direction. A flexible polymeric film may be peelably sealed over the lid of the first compartment to restrict disbursement of product in the event of a premature rupture of the second portion of the lid, and to maintain the lid free of the scored portion of the lid, and to maintain the lid free of contaminants during shipping and handling.
Patent CA-2087907-A1 (CA)
Inventor: KAWASAKI MASAAKI
IPC: C08F210/14
Filed: 1993-01-22
Abstract: ABSTRACT    The higher .alpha.-olefin copolymer of the invention is a copolymer of specific higher .alpha.-olefin, specific .alpha.,.omega.-diene and specific non-conjugated diene, and this copolymer has a specific molar ratio of the higher .alpha.-olefin to the .alpha.,.omega.-diene, a specific content of the non-conjugated diene and a specific intrinsic viscosity.  This higher .alpha.-olefin copolymer can be prepared using a catalyst for olefin polymerization formed from a specific solid titanium catalyst component, an organometallic compound catalyst component and an electron donor catalyst component.  The vibration-insulating rubber molded product of the invention is formed from a vulcanized product of the above-mentioned copolymer.  The above-mentioned copolymer is excellent not only in weathering resistance, ozone resistance, thermal aging resistance, low-temperature characteristics, vibration-damping properties and dynamic fatigue resistance but also in processability, so that an excellent vulcanized product can be obtained from the copolymer.
Patent CA-2089967-A1 (CA)
Inventor: PERROTT CHARLES H
IPC: E03C1/296
Filed: 1993-02-19
Abstract: A multiple drain trap primer valve assembly. The assembly comprises a plumbing conduit system including a house line 10 carrying water under pressure and a plurality of branch lines 12 each serving the drain trap 14 of a particular plumbing fixture. A manifold 26 having multiple discharge openings is connected into the house line. Coupling means 30 couple the branch lines to the manifold, one to each opening.          Each coupling means includes a flow orifice 44 of size predetermined to equalize the flow of priming water to the branch line. Time-clock controlled valve means 20 is positioned in the house line to open it to the flow of water at predetermined time intervals.
Patent CA-2090291-A1 (CA)
Inventor: CHEN YUEH-HORNG
IPC: A61M5/36
Filed: 1993-02-24
Abstract: ABSTRACT OF THE DISCLOSURE      A device for use in controlling the intravenous drip comprises a cap and a dripping  vessel.  The  cap is con-nected with a solution bottle of the intravenous  drip by means  of an  upper  connecting tube  while the  dripping vessel is in  communication with a  hypodermic  needle by means of a lower  connecting tube.  The  cap is  provided thereon with a gas  column having  therein a gas  duct in which a press rod is movably  disposed.  The  gas  in the upper connecting tube and the dripping vessel  can be let out rapidly by means of the press rod.
Patent CA-2090581-A1 (CA)
Title: Image processing method and apparatus
Inventor: SUZUKI AKIO
IPC: H04N1/00
Filed: 1993-02-26
Abstract: An image processing apparatus for performing accurate discrimination between specific originals and ordinary originals.  CCD 101 inputs RGB signals, and color-space matching judgment circuit 106 and pattern matching judgment circuit 113 judge the similarity in the color distribution and pattern between the input RGB data and a predetermined specific image data.  CPU 114 judges the similarity and print-signal generator 105 generates a change signal in accordance with the judged similarity.  The input RGB signals are changed based on the generated change signal and outputted to external color printer 111.
Patent CA-2093751-A1 (CA)
Title: Aqueous gel matrix for replacement of confection fats
Inventor: MILLER MARK S
IPC: A23D7/00
Filed: 1993-04-08
Abstract: AN AQUEOUS GEL MATRIX FOR REPLACEMENT OF CONFECTION FATS                 Abstract of the Invention The present invention is directed to an aqueous gel matrix which replaces triglyceride fat in chocolate and similar confection products.  The product is prepared from a mixture including a gelling type maltodextrin, sugar, flavor particles and water.  The confection product has a melting temperature of about 140° F., has a firm chocolate-type consistency at temperatures below about 32° F. and has a firmness ranging from that of chocolate sauce to that of butter or margarine at temperatures in the range of from about 32° F. to about 140° F.  The melting properties of the low fat confection product of the invention make it particularly suitable for use in frozen dessert products.