baber/WOPTO huggingface dataset:
Patent CA-1336513-C (CA)
Inventor: MACDONALD PETER
IPC: C07J71/00
Filed: 1985-05-31
Granted: 1995-08-01
Abstract: The present invention relates to a process for the preparation of 16,17 acetals of pregnane derivatives by trans-ketalization of 16,17-acetonides.  In particular the invention relates to the preparation of 16.alpha.,17.alpha.-butyl-idenedioxy-11.beta.,21-dihydroxypregna-1,4-diene-3,20-dione, a compound having useful therapeutic properties, known also as budesonide.  It is possible to obtain the more active epimer with high selectivity and remarkable economic advantages in comparison with known methods.  New 16,17 acetals of pregnane derivatives, which can be prepared by the method of the invention, are also described.  The compounds of the present invention are used in human therapy.
Patent CA-1334857-C (CA)
Inventor: TANIS WILLIAM J
IPC: H03L7/197
Filed: 1985-06-07
Granted: 1995-03-21
Abstract: The fractional division frequency synthesizer comprises a digital ramp generator producing a digital correction ramp controlled by a frequency control programmer; a divide by N divider coupled to an output of a voltage controlled oscillator with the divider being controlled by the program, where N is a selected one of an integer and a fraction one or greater; a digital phase detector coupled to a reference clock and the output of the divider to provide a digital phase error signal; a digital adder coupled to an output of the ramp generator and the phase detector to produce a ramp corrected digital phase error signal; and circuit arrangement coupled to an output of the adder and a control input of the con-trolled oscillator to convert the ramp corrected digital phace error signal to a ramp corrected analog phase error signal to control the controlled oscillator and thereby provide a controlled fre-quency signal at  the output thereof.
Patent CA-1264974-C (CA)
Title: Process of manufacturing sacks from synthetic thermoplastic material
Inventor: ACHELPOHL FRITZ
IPC: B31B160/10
Filed: 1986-01-14
Granted: 1990-01-30
Abstract: ABSTRACT In a process of manufacturing sacks from synthetic thermoplastic material, a tubular film is formed from a web of plastic film in that the side portions are infolded and their overlapping margins are adhesively joined by an adhesive seam, tubular sections are severed from said tubular film and said tubular sections are provided with bottom seam welds and are then filled and provided with top seam welds. two plastic film webs are moved in unison, sections of a woven fabric web of oriented plastic tapes are provided, which fabric sections are shorter than the distance between the subsequently formed bottom and top seam welds when said distance is measured along the flattened sacks. Said fabric sections are intro-duced between said plastic film webs with such a spacing relative to each other that the spaces bet-ween adjacent fabric sections overlap the regions in which the bottom and top seam welds are to be formed The plastic film webs and the fabric sections are brought together with a lateral offset. The exposed margins of the plastic film webs and the fabric sections are provided with coatings of hot-melt adhesive so that during the subsequent formation of the tubular film the mutually overlapping margins provided with coatings of hot-melt adhesive are adhesively joined. The tubular sections are served from the tubular film near the centers of the spaces between the fabric sections. The tubular sections are provided with the transver? extended bottom seam welds only in the tubular film.
Patent CA-1299354-C (CA)
Title: Absorbent cushion, notably for use in hygiene products
Inventor: KOCZAB JEAN P
IPC: D04H1/52
Filed: 1987-01-15
Granted: 1992-04-28
Abstract: An absorbent pad, particularly for articles of hygiene such as diapers, nappy-pants, dressings, and the like, is disclosed which includes at least one sheet of long fibers, preferably one sheet of nonabsorbent fibers and the other of absorbent fibers, and superabsorbent particles distributed between the sheets. The superabsorbent particles are held in place by needling at least one of the long-fibered sheets.
Patent CA-1288537-C (CA)
Title: Polymer latices and paint formulations
Inventor: FINKELSTEIN ARMAND F
IPC: C09D125/14
Filed: 1987-02-20
Granted: 1991-09-03
Abstract: ABSTRACT         Aqueous polymer emulsions suitable for preparation of high wet adhesion latex paints comprise an emulsified film-forming copolymer of a first, hard monomer such as styrene, a second, soft monomer such as butyl acrylate, a wet adhesion monomer and an acidic copolymerizable dry-adhesion promoter, the copolymer having a minimum film forming temperature of about 25°C.  The emulsions are prepared by free radical polymerizations, in latex, by procedures specially adapted to avoid mutual neutralization of the monomers prior to polymerization.
Patent CA-1305320-C (CA)
Title: Belt and drum pressing apparatus and heated drum for the same
Inventor: MILLER RAY R
IPC: F28D11/02
Filed: 1987-04-02
Granted: 1992-07-21
Abstract: BELT AND DRUM PRESSING APPARATUS   AND HEATED DRUM FOR THE SAME                       ABSTRACT OF THE DISCLOSURE A press belt arrangement in which none of the compressive forces on the central drum are transmitted to the supporting frame. It provides a method in which a greater compressive force in relationship to belt tension is applied to the drum. The invention makes it possible to construct the central drum so that large quantities of heat can be fluxed through it for purposes of achieving the fast drying rates long sought in the industry.
Patent CA-1275648-C (CA)
Title: Plant of batch system for producing a composite paving material by using a bituminous waste pavement material
Inventor: SASAKI HIDEO
IPC: E01C19/10
Filed: 1987-04-24
Granted: 1990-10-30
Abstract: 7.  ABSTRACT OF THE DISCLOSURE:    Disclosed is a plant of batch system for producing a composite paving material by using a bituminous waste pavement material, which comprises a heating means equipped with a new aggregate material introduction shoot and a bituminous waste material introduction shoot, the former shoot being connected to a new aggregate material supply passageway and the latter shoot being connected to a reproduction material supply passageway.  The plant also com-prises a ratio control section which is intended to compare with each other respective supplying indicated values of new and waste aggregate materials as measured by conveyor scales disposed with respect to their corresponding supply passage-ways, and thereafter proportionally control the value of the waste material relative to the value of the new material so that both the values may bear a predetermined mixing ratio.  The ratio control section, thereafter, generates a command control signal to an inverter involved in the waste material supply passageway.
Patent CA-1292808-C (CA)
Title: Apparatus and method for interprocessor communication
Inventor: MORGANTI VICTOR M
IPC: G06F15/167
Filed: 1987-05-29
Granted: 1991-12-03
Abstract: ABSTRACT         In order to provide communication between two processors in a data processing unit,  a target processor  includes apparatus  that  can  store  data signal groups from a source processor.  Having stored a data signal group from the source processor,  the target processor notifies the source processor of the receipt of the data signal group.  In response to the presence of the stored data signal group,  the target processor  executes  a  command  identified  by  the transferred data signal group.  The source processor at  a  preselected  time,  executes  an  instruction  to determine  if the  command  designated  by  the  data signal group stored in the target processor has been executed. The commands specified by the transferred data  signal  groups  can  be  executed  under  hardware control by the target processor in a relatively short time  immediately  following  completion  of  the instruction in execution in the target processor at the time of the transfer of the data signal group.          The  interprocessor  communication  has  only  a  minor impact on the performance of the source processor and the  target  processor  because  of  the  command implementation by apparatus.
Patent CA-1296919-C (CA)
Title: Distributed sensor array and method using a pulsed signal source
Inventor: KIM BYOUNG Y
IPC: G01J1/02
Filed: 1987-06-22
Granted: 1992-03-10
Abstract: DISTRIBUTED SENSOR ARRAY AND METHOD              USING A PULSED SIGNAL SOURCE                 ABSTRACT OF THE DISCLOSURE    A  distributed sensor  system using pulsed  optical signals optionally produced by a short coherence length source  to  provide  a  phase  difference  output signal representative    of conditions affecting A selected sensor. In one preferred embodiment,  an array of fiber-optical sensors are organized in a ladder configuration, with the sensors positioned in spaced relation and defining  the rungs of the ladder. Light pulses transmitted through the sensors are multiplexed onto a return arm of the ladder. The multiplexed signals are received by an optical fiber compensating  interferometer  which  coheretly  couples portions of adjacent multiplexed light signals to produce a  phase  difference signal  representing  conditions influencing  selected  sensors.    In  other  preferred embodiments,  the  system  is  configured  to  define  a plurality of adjacent Mach-Zehnder interferometers which provide output signal pairs  which coherently couple to yield a phase difference signal directly representing the environmental effects on a particular sensor.  Functional equivalents  of  the  Mach-Zehnder  interferometer configurations comprise configuration including adjacent modulation  interferometers.    A  phase  and  amplitude modulation  technique  and apparatus  (Figure  8) is disclosure for providing heterodyned output signals from the distributed sensor system.   abstract
Patent CA-1318705-C (CA)
Title: Prescription assembly
Inventor: LAPSKER JOSHUA
IPC: B42D15/00
Filed: 1987-08-27
Granted: 1993-06-01
Abstract: ABSTRACT           An assembly for incorporation in a binder assembly facilitates distribution of free starter sample dosages of prescription pharmaceuticals to patients; in particular, the starter dosage is dispensed by a pharmacist based on a preprinted prescription form completed by a physician; the form includes a control stub which is completed and removed by the pharmacist who then presents it to a control body for reimbursement; the control body collates particulars of sample dosages prescribed.
Patent CA-1321795-C (CA)
Title: Certain 2-(2-substituted benzoyl)-4-(substituted oxy or substituted thio)-1,3-cyclohexanediones
Inventor: LEE DAVID L
IPC: A01N37/34
Filed: 1987-10-15
Granted: 1993-08-31
Abstract: CERTAIN 2-(2-SUBSTITUTED BENZOYL)-4-(SUBSTITUTED  OXY OR SUBSTITUTED THIO)-1,3-CYCLOHEXANEDIONES                         Abstract of the Disclosure Compounds of the formula   wherein X is oxy, thio, sulfinyl or sulfonyl; R is halogen; C1-C2 alkyl; C1-C2 alkoxy; trifluoromethoxy; difluoromethoxy; nitro; cyano; C1-C2 haloalkyl; RaSOn- wherein n is 0 or 2 and Ra is C1-C2 alkyl, trifluoromethyl or difluoromethyl;      R1 is hydrogen, C1-C4 alkyl, phenyl or substituted phenyl; R2 is hydrogen or C1-C4 alkyl; or R1 and R2 together are C2-C5 alkylene; R3 is hydrogen, C1-C4 alkyl, phenyl or substituted phenyl with the proviso that R1 and R3 are not both phenyl or substituted phenyl;          R4 is hydrogen or C1-C4 alkyl; R5 is hydrogen or C1-C4 alkyl; R6 is hydrogen, C1-C4 alkyl, C1-C4 haloalkyl, or phenyl; R7 and R8 independently are (1) hydrogen; (2) halogen; (3) C1-C4 alkyl; (4) C1-C4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C1-C4 haloalkyl: (9) RbSOn- wherein n is the integer 0, 1 or 2: and Rb is (a) C1-C4 alkyl; (b) C1-C4 alkyl substituted with halogen or cyano; (c) phenyl; or (d) benzyl; (10) -NRcRd wherein  Rc and Rd independently are hydrogen or C1-C4 alkyl; (11) ReC(O)- wherein Re is C1-C4 alkyl or C1-C4 alkoxy; or (12) -SO2NRcRd wherein Rc and Rd are as defined; and (13) -N(Rc)C(O)Rd wherein Rc and Rd are as defined; and their salts.
Patent CA-1293651-C (CA)
Title: Pyrolysis and combustion apparatus
Inventor: GOULD ORVAL E
IPC: C10B53/07
Filed: 1987-12-14
Granted: 1991-12-31
Abstract: ABSTRACT OF THE DISCLOSURE             A system for pyrolysis and combustion of combustible solid material, such as waste, which comprises a pyrolysis chamber having a series of spaced vertically disposed movable grates, forming a plurality of stages in the pyrolysis chamber and permitting downward movement of solid feed material at a controlled rate countercurrent to the upward flow of hot gaseous products, the movable grates being synchronized for successive actuation whereby the charge of feed material is successively passed through each of the stages to the bottom of the pyrolysis chamber.  Means is provided for introducing air into each of such stages and into the bottom of the pyrolysis chamber.  A feed-lock apparatus is provided for feeding combustible solid feed material into the upper section of the pyrolysis chamber, the feed-lock apparatus including a hopper for receiving particulate feed material and means for compressing the particulate feed material into a compacted block which temporarily functions as a gas seal from the pyrolysis chamber, and for introducing the compacted block into the upper section of the pyrolysis chamber.  An exit conduit is also provided for removing overhead fuel gas from the pyrolysis chamber, and means, in the form of an ejector, is provided for introducing the overhead fuel gas from the exit conduit into a combustion chamber, and for passage of the combustion gases to a heat load.  A diverter valve and throttle valve are provided in the exit conduit for selectively diverting overhead fuel gas or for throttling the process, when desired, e.g., for safety reasons.  A water-filled discharge conveyor is provided for quenching the ash and other non-combustible material and carbon in the bottom of the pyrolysis chamber, and removing the resulting slurry therefrom.
Patent CA-1321348-C (CA)
Title: Treatment of certain leukemias with a combination of gamma interferon and alpha interferon
Inventor: TROTTA PAUL P
IPC: A61P35/02
Filed: 1988-01-20
Granted: 1993-08-17
Abstract: ABSTRACT         Human leukemia T-cells and B-cells are inhibited from proliferating by treatment with a combination of recombinant human alpha and gamma interferons, either simultaneously or sequentially, and the alpha interferon is preferably recombinant human alfa-2b interferon.
Patent CA-1297913-C (CA)
Title: Hydrocarbon gas processing to recover propane and heavier hydrocarbons
Inventor: PRIBLE DONALD E
IPC: F25J3/02
Filed: 1988-01-29
Granted: 1992-03-24
Abstract: HYDROCARBON GAS PROCESSING TO RECOVER   PROPANE AND HEAVIER HYDROCARBONS            ABSTRACT OF THE DISCLOSURE          A cryogenic process for recovering propane and heavier hydrocarbons from natural gas streams or similar refinery or process streams containing lighter hydrocarbons such as methane and ethane.  In the process disclosed, the gas to be separated is cooled which may include some condensation, in which case the condensate is separated from the vapor and fed to a lower region of all the fractionating column.  The cooled vapor from the separator is split into two streams.  One portion of the split vapor stream work expanded to a midpoint of the fractionating column, while another portion of the split vapor stream is further cooled causing partial condensation, the condensate being separated and fed to the fractionation column above the feed from the first work expander, and the vapor being work expanded through a second expander and fed to the top of the fractionator as reflux.
Patent CA-1311619-C (CA)
Title: Use of citric acid partial esters for the extraction of iron
Inventor: BUCHMEIER WILLI
IPC: C22B3/00
Filed: 1988-02-15
Granted: 1992-12-22
Abstract: ABSTRACT OF THE DISCLOSURE       Citric acid partial  esters corresponding to the following general formula (I)   in which R1, R2 and R3 represent hydrogen or a straight-chain or branched  C4-C20 alkyl radical or a metal atom, with the proviso that at least one but at most two of the substituents R1, R2 and R3 represent such an alkyl radicals or mixtures of the citric acid partial esters corresponding to general formula (I), are used for the extraction of iron from aqueous solutions.
Patent CA-1281799-C (CA)
Title: Remote maintenance system for digital communication network
Inventor: KAWANO HISAO
IPC: H04Q9/00
Filed: 1988-02-16
Granted: 1991-03-19
Abstract: ABSTRACT         A remote maintenance system for a digital communication network, comprises local offices (LOs) at least two of which are grouped and connected to each other by a local line in the group and a centralized maintenance and operation center (CMOC) located at a tandem office and connected to each LO by an ordinary digital transmission line (DTL) using No. 7 Common Channel Signaling (CCS) system recommended by CCITT.  When a serious fault, such as system-down, occurs in an LO (first LO) in the group, a serious alarm signal is sent from the first LO to the CMOC through the local line, another LO (second LO) in the group and the DTL con-necting between the second LO and the CMOC, so that maintenance data for repairing the serious fault are provided at the CMOC and sent, under the No. 7 CCS system, to the first LO through the DTL toward the first LO.  The maintenance data is sent without using switching network in the first LO or through the DTL toward the second LO, the second LO and the local line.
Patent CA-1277228-C (CA)
Inventor: DE ALMEIDA FRANCO ZADSON
IPC: E21B33/124
Filed: 1988-03-28
Granted: 1990-12-04
Abstract: A B S T R A C T            "MECHANICAL SYSTEM FOR DIVERSION IN THE  ACIDIZING  TREATMENT  OF OIL FORMATIONS".      The invention concerns a mechanical system which permits the use of ball sealers as  diversion  agents  in  the  acidizing  of productive  hydrocarbon formations, by associating the advantages of mechanical diversion to the advantages  of  the  use  of  ball sealers, whatever their density.     The mechanical system comprises a packer (7), a swivel (18), a centralized tail (9), a ball ejection port (10) and two cups (11).     The  mechanical  system  operation  involves  the   adequate positioning  of  each  of  its  components in such a manner as to permit that the ball sealers will attain sufficient velocities to be driven mechanically to their targets.
Patent CA-1307930-C (CA)
Title: Contact poison delivery system
Inventor: SHERMAN DANIEL A
IPC: A01M25/00
Filed: 1988-03-31
Granted: 1992-09-29
Abstract: ABSTRACT           This invention relates to the containment of a rodenticide impregnated wick in a "tamper-resistant" container that will coat a rat or mouse passing through said container with a lethal dose of poison, ingested by the rodent as it preens and cleans itself.  The position of the wick and the configuration of the internal structure of the container insures a maximum impregnation of the rodent traversing the device while isolating the wick, its structure and the poisoned substance from prying hands.  The use of this poisoning system will provide the user with a method of eliminating a rodent population without the use of powders or poison impregnated baits, both of which can be spilled or manipulated from a container if the container is not fastened to the ground, if the rodent has eaten through a part of the poisoned bait, or, if the bait has been impregnated in pellet or granular forms of food stuffs.  The invention provides the additional advantage of being easily fabricated and for allowing a premeasured and readily definable amount of poison to be encased in a manner that will insure its stability and safe usage.
Patent CA-1297449-C (CA)
Title: Fork-lift vehicle
Inventor: FISCHER HORST
IPC: B62B3/06
Filed: 1988-04-11
Granted: 1992-03-17
Abstract: Abstract of the Disclosure: A fork lift truck includes a loading portion to be raised including a loading fork.  Pivot levers are connected to the loading fork and lifting wheels are supported in the pivot levers.  A lifting linkage extends inside the fork arms.  A vertical battery case is mounted on the end of the loading fork.  A shaft is supported in the lower portion of the vertical battery case for actuating the lifting linkage.  A drive portion includes a horizontal frame plate.  A drive mechanism for steering the truck,  a support wheel and a pivotable hydraulic cylinder are supported on the frame plate. A lever arm has a rectangular lever plate of spring steel which is twistable about its longitudinal axis, which has a ratio of length to width of substantially 3:1 and which is disposed on edge.  The lever plate has one end with a bore formed therein in which the shaft supported in the loading portion is centrally disposed and welded.  The lever plate has another end with another bore formed therein.  A bearing bush has one end welded into the other bore formed in the lever plate and each end thereof has a respective bearing bore formed therein.  A pivot lever is welded onto the lever plate eccentric to the bearing bush.  The pivot lever has one end at least partially surrounding the bearing bush and another end having a transverse bore formed therein for rotatably receiv-ing the lower end of the hydraulic cylinder.            LAG:cdt
Patent CA-1297163-C (CA)
Title: System and method for communicating signals in a cased borehole having tubing
Inventor: MCBRIDE ROGER W
IPC: E21B47/12
Filed: 1988-06-02
Granted: 1992-03-10
Abstract: ABSTRACT OF THE DISCLOSURE         A system and method are disclosed for wireless two-way communication in a cased borehole having tubing extending therethrough.  A downhole communications subsystem is mounted on the tubing.  The downhole subsystem includes a downhole antenna for coupling electromagnetic energy in a TEM mode to and/or from the annulus between the casing and the tubing.  The downhole subsystem further includes a downhole transmitter/receiver coupled to the downhole antenna, for coupling signals to and/or from the antenna.
Patent CA-1338698-C (CA)
Inventor: PAQUES ERIC PAUL
IPC: A61K47/18
Filed: 1988-06-02
Granted: 1996-11-12
Abstract: In the preparation of parenteral solutions for the therapy and prophylaxis of thromboses and embolisms, because of the poor solubility of t-PA hitherto either the infusion of very large volumes has been necessary, or else a solu-tion with a low volume and a high t-PA concentration has been prepared at the expense  of  setting  up a non-physiologically  low pH of 2 to 5.  Hence, the present invention relates to a process for the preparation of a solution of high                   con-centration of a protein having plasminogen activator activity, where an increase in stability and solubility is achieved by adding at least two substances from the group of D- and/or L-amino acids, their salts, derivatives or homologs. This invention also relates to a process for the pasteurization of a protein solution having t-PA acti-vity, and to a t-PA-containing  solution prepared by the claimed process, and to the use of this solution as a fibrinolytic in human and veterinary medicine.
Patent CA-1277435-C (CA)
Inventor: GAJDA JOSEPH J
IPC: H01L23/485
Filed: 1988-06-30
Granted: 1990-12-04
Abstract: Chip Contacts Without Opens Abstract An integrated circuit chip including a first and a higher second surface levels with an abrupt sidewall step transition therebetween, and having a first layer of a first conductive material disposed over the first surface level and over the second surface level, but terminating on the first surface level in a first end portion which extends up to but does not touch the sidewall.  This end portion comprises a conductive material which has been converted to an insulator.  A second layer of a second conductive material is disposed on top of the first conductive layer with essentially no conductive material conversion to insulator therein adjacent to the abrupt sidewall transition.    In a preferred embodiment, the conductive material is an alloy of aluminum and the end portion is aluminum oxide.