baber/WOPTO huggingface dataset:
Patent CA-1284707-C (CA)
Inventor: SCHIRMER HENRY G
IPC: B29L9/00
Filed: 1985-11-20
Granted: 1991-06-11
Abstract: ABSTRACT A heat-shrinkable  thermoplastic film includes  a  food contact layer;  a  second  layer of propylene homopolymer or copolymer, ethylene copolymer, butylene homopolymer or blends thereof; an adhesive layer; a layer of unplasticized vinylidene  chloride  copolymer;  another adhesive layer; and an optical clarity layer.
Patent CA-1279228-C (CA)
Title: Process for producing a folded rim
Inventor: KOEGEL HERMANN
IPC: B23K26/28
Filed: 1986-04-21
Granted: 1991-01-22
Abstract: Abstract A method of producing a folded edge between the body and base and/or upper base of a container made out of fine and/or extra-fine sheet metal, whereby at least two layers of the fold are bonded together at least at various points along the at least almost finish-folded edge by means of fusion welding.
Patent CA-1285449-C (CA)
Title: Laundry detergent containing carboxylate
Inventor: YAP TJAY Y
IPC: C11D3/37
Filed: 1986-04-30
Granted: 1991-07-02
Abstract: ABSTRACT            Laundry compositions comprise  a mixture  of  alkoxylated phthalate  ester  polymers  and  dicarboxylate  detergency builders.  The polymers provide a soil release benefit on fabrics  and  enhance  the  grease  removal  preperties  of detergent compositions built with dicarboxylate builders.
Patent CA-1284657-C (CA)
Title: Surfactants derived from dicarboxylic hydroxyacids
Inventor: TURCHINI LUIGI
IPC: C07C69/08
Filed: 1986-07-25
Granted: 1991-06-04
Abstract: ABSTRACT OF THE DISCLOSURE            There are described surfactants derived from dicar-boxylic hydroxyacids having general formula:                 (I) wherein: R2 is H or -OH; R, R1, equal to or different from each other, are H, a metallic ion, -NH4, a cation of an organic base of ammonium or a group having formula:                  -An - R3                               (II) wherein A is a C2-C4 oxyalkylenic group, n is a number ranging from 1 to 20, R3 is a C8-C20 alkyl group wherein at least one of said R, R1 is an -An-R3 group and wherein the group  or the -OH groups of the compound having formula (I) can be esteri-fied or etherified by usual methods.
Patent CA-1295778-C (CA)
Title: Polymeric thickeners and their production
Inventor: FARRAR DAVID
IPC: C08L33/02
Filed: 1986-08-07
Granted: 1992-02-11
Abstract: ABSTRACT            Polymeric Thickeners and their Production Polymers  are made  by  polymerisation  of an  ionic monomer  such  as methacrylic  acid or dialkylaminoalkyl (meth)-acrylate  or  -acrylamide  and/or  a  substantially non-ionic monomer, optionally a cross linking agent, and an allyl ether of the formula CH2=CR'CH2OAmBnApR whexe R' is hydrogen or methyl, A is propyleneoxy or butyleneoxy, B is ethyleneoxy, n is zero or an integer, m and p are zero or an integer less than n, and R is a hydrophobic group of at least 8 carbon atoms.   The polymers are preferably made by oil in water emulsion polymerisation. They  can  be  used  as  thickeners  particularly  in environments  containing  surfactant  and/or  electrolyte, including  especially  emulsion  paints,  print  pastes, alkaline liquors and acidic liquors.
Patent CA-1278431-C (CA)
Title: Thermal production of magnesium
Inventor: BARCZA NICHOLAS A
IPC: C22B26/22
Filed: 1986-09-08
Granted: 1991-01-02
Abstract: ABSTRACT        A process is provided for the production of magnesium from magnesium oxide, generally in the form of calcined dolomite, in which magnesium vapour is produced in a heated reaction zone from solid reactants fed substantially continuously to such reaction zone.   The solid reactants include a reductant and optionally a slag forming agent, preferably ferrosilicon and alumina respectively.          The reaction zone is heated by a thermal plasma, the electrical current of which includes the furnace bath as an integral part of it.   The plasma forming gas is preferably argon.
Patent CA-1303896-C (CA)
Title: Process for preparing readily reconstituted frozen comestibles and frozen comestibles produced thereby
Inventor: BERNACCHI DONALD B
IPC: A23L17/00
Filed: 1986-09-23
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE    A method is disclosed for preparing coated, frozen comestibles which, when reconstituted by microwave heating, have a texture and appearance organoleptically equivalent or superior to that of fat fried coated comestibles. According to the method, the comestibles are enrobed with a first coating of a batter including wheat flour and shortening and fried, and the once coated and fried comestibles are then given a second coating, fried a second time and frozen.
Patent CA-1281020-C (CA)
Inventor: SCHEFFEL GARY W
IPC: F16K1/46
Filed: 1986-10-03
Granted: 1991-03-05
Abstract: SEAL RING SHUTOFF STEM TIP                Abstract of the Disclosure A stem tip seal for a shutoff valve includes a valve member having an axial recess at the outer end that operatively receives a retaining sleeve. The  retaining sleeve includes a flange portion engaging a shoulder formed by a circumferential groove in the valve member to effectively limit relative movement between these two components. A tapered surface at one end of the retaining sleeve cooperates with a tapered surface formed on the valve member for confining a seal ring.          The seal ring is under compression  and biases the retaining sleeve toward a first or outer limit position. Initial contact between the retaining sleeve and valve seat prevents nibbling or chipping of the sea ring during valve closure, and extended contact between the retaining sleeve and valve seat provides support during valve opening to prevent seal blow out.
Patent CA-1294919-C (CA)
Title: Producing electrolytic cathode of carbon material, refractory insulation shell, and cast concrete
Inventor: HVISTENDAHL JAN
IPC: C25C3/08
Filed: 1986-10-28
Granted: 1992-01-28
Abstract: ABSTRACT            The present application relates to an outer shell for electrolytic cell for molten salt electrolysis preferably an electrolytic cell for production of aluminium, wherein the outer shell is made from concrete.            The present application further relates to a method for producing a cathode for molten salt electrolysis where the cathode is built up on a form having outer dimensions and shape corresponding to the inner dimensions and shape of the finished cathode, by successively placing on said form bottom carbon blocks, optionally intermediate carbon blocks, sidewall carbon blocks, busbars, and optionally barrier layer and refractory insulation material layers, whereafter an outer shell made from concrete is cast upon the layers of refractory insulation material.
Patent CA-1294256-C (CA)
Title: Aseptic filling station
Inventor: ANDERSON IAN M
IPC: B67D/
Filed: 1987-02-20
Granted: 1992-01-14
Abstract: ABSTRACT          A method and system for aseptic filling of containers.  The flexible containers (1) are presterilized and a rupturable membrane (41) covers the inlet to the container.  The filling head (20) includes a recess (46) below the outlet valve (22) and this recess is closed by the rupturable membrane (41) when the container inlet is aligned with the filling head.  After alignment. sterilizing fluid is introduced into the recess to sterilize the outer surface of the membrane and the internal surfaces of the recess. Following sterilization the valve member (22) moves towards the rupturable membrane (41) allowing the piercing tool (25) to rupture said membrane. The outlet valve (24) of the filling head is opened and the liquid is allowed to flow into the container.  Subsequent to completion of the filling cycle the inlet to the container is sealed and the sealed and filled container (1) is then removed from the filling head (20).
Patent CA-1292398-C (CA)
Title: Secondary combustion device for woodburning stove
Inventor: CRAVER RICHARD D
IPC: F24B5/02
Filed: 1987-04-15
Granted: 1991-11-26
Abstract: SECONDARY COMBUSTION DEVICE FOR WOODBURNING STOVE.    Abstract of Invention An improvement in a woodburning stove of the type in-cluding an exhaust flue opening; a combustion chamber for primary combustion, having an access door, a support for wood to be burned and a primary air inlet means for supply-ing primary air to support primary combustion of the wood to produce flue gases containing combustible particulate material; conduit means for directing the flue gases from the combustion chamber to the flue opening in a preselected path; and, secondary combustion means for burning the parti-culate material in the flue gases before the flue gases pass through the exhaust flue opening.  The improvement involves the secondary combustion means for supplying many jets of secondary air into the flue gases adjacent to the combustion chamber together with a laterally elongated, secondary com-bustion device having a constriction effect on the flue gases and a large volume secondary combustion plenum chamber with the combustion device and plenum chamber connected in series between the combustion chamber and the exhaust flue opening. This secondary combustion device includes two closely spaced, generally parallel walls through which the flue gases and secondary air pass from the combustion chamber through an exit end of the device into the plenum chamber in a wide, narrow flow pattern and including means for thermally insul-ating the outermost wall of the secondary combustion device whereby it rapidly attains and retains a high temperature with-out absorbing substantial heat energy.  The secondary air is provided by a laterally extending manifold with openings pro-ducing many distinct secondary air jets extending into the flue gases ahead of the elongated passage defined by the two generally  parallel walls as previously mentioned.  This novel secondary combustion device for improving a woodburning stove also employs  a baffle plate at the exit end of the secondary combustion device, which plate agitates and decreases the velocity of the mixture of flue gases and thereby further enhance the total reduction of particulate material exiting from the plenum chamber into the exhaust flue opening.
Patent CA-1293968-C (CA)
Title: Process for preparation of a hydrogenation and/or dehydrogenation catalyst
Inventor: KOELL JUHAN
IPC: B01J37/02
Filed: 1987-06-15
Granted: 1992-01-07
Abstract: A B S T R A C T      Process  for  preparation  of  a  hydrogenation  and/or dehydrogenation catalyst.     The invention relates to a method for the preparation of a  ruthenium  promoted  nickel  and/or  cobalt  hydrogenation and/or  dehydrogenation  catalyst  on  a  porous  metal  oxide support. Halogen is incorporated in the catalyst by adding a halide compound at any stage of the process in form of a non-ruthenium halide.
Patent CA-1275748-C (CA)
Title: Telelink monitoring and reporting system
Inventor: CEDRONE LOUIS A
IPC: G06Q10/06
Filed: 1987-09-09
Granted: 1990-10-30
Abstract: ABSTRACT OF THE DISCLOSURE A microprocessor controlled system for monitoring, storing and periodically reporting on data pertinent to the commercial operation of a reporting system, such as a soft drink vending machine, to a central data collection and monitoring computer, and which periodically reports such data over a telephone line which it accesses on a nondedicated basis. The microprocessor controls operations of the telelink system, and stores in memory data related to the overall status of the commerical operation of the reporting system, such as totals, inventory, etc. Reporting system status sensors are provided for reporting on the status of the reporting system without interrupting normal operation thereof, such that a problem with the operation of or a malfunction of the telelink system does not adversely affect operation of the reporting system. Communication with the data collection processor system is provided by a telephone interface circuit which enables the microprocessor to periodically and on a nondedicated basis use an existing telephone line, which is otherwise used in normal service for telephones coupled thereto. A modem is also provided for enabling data messages to be transferred through the telephone interface circuit to the data collection system.
Patent CA-1310766-C (CA)
Title: Ore analysis
Inventor: ROBERTSON MALCOLM E A
IPC: G01N23/223
Filed: 1987-09-10
Granted: 1992-11-24
Abstract: ABSTRACT ORE ANALYSIS          A method for the rapid and sensitive analysis of heavy metal ores, especially those of gold and uranium, uses high-energy  X-ray  fluorescence  spectroscopy.    The invention is of particular interest for the measurement of samples from gold ore bodies which typically have concentrations  up  to  10  ppm  by  mass.    Preferred features include the use of an X-ray tube as a source, the counting of emitted fluorescence photons in energy bands  selected to  correlate with  the  characteristic X-ray fluorescence emissions of elements of interest, the excitement of the ore sample by irradiation with high energy bremsstrahlung radiation filtered through tin, the exploitation of polarization in analysis for uranium,  the interposition of a platinum-group metal filter between the sample and the detector, and the use of high-purity germanium detectors.  Techniques  are described  for  the  detection  and  elimination  of inaccuracies due to the presence of certain interfering metals  and  correction  for  variations  in  sample density.   Apparatus  for  use  in  the  method  of  the invention is also disclosed and claimed.
Patent CA-1277226-C (CA)
Inventor: VINEGAR HAROLD J
IPC: G01N33/24
Filed: 1987-09-25
Granted: 1990-12-04
Abstract: A B S T R A C T            METHOD AND APPARATUS FOR DISTINGUISHING DISPERSED AND           LAMINATED CLAY IN EARTH FORMATIONS     Logging   means   and    methods   are   disclosed    for distinguishing  between  dispersed  and  laminated  clay  in  earth formations.  A  wireline  apparatus  is employed  consisting  of  a multifrequency  induced  polarization  logging  tool  operating  at extremely low frequencies, combined with other logging tools  which measure the total amount of clay in the formation.  A determination is then  made of  the fraction  of the  total clay  content in  the formation which is due to laminated clay.
Patent CA-1279895-C (CA)
Title: Protection system for thyristor-controlled reactors
Inventor: BRENNEN MICHAEL B
IPC: H02J3/18
Filed: 1987-10-29
Granted: 1991-02-05
Abstract: A B S T R A C T            PROTECTION SYSTEM FOR THYRISTOR-CONTROLLED REACTORS           To a static VAR generator of the split reactor type,  a scaled down model is associated to be controlled concurrently with the static switches of the split reactor and to generate under proportional line voltage a simulated reactive current which is matched with the actual reactive current to detect a flashover across one of the two halves of the split reactor.
Patent CA-1316863-C (CA)
Title: Isopropyl alcohol purification process
Inventor: LITZEN DAVID B
IPC: C07C29/86
Filed: 1987-12-17
Granted: 1993-04-27
Abstract: ABSTRACT     A process for the purification of a crude isopropyl alcohol, such as a product of propylene hydration reactions, comprising isopropyl alcohol, diisopropyl ether, water and polymeric impurities, wherein the crude isopropyl alcohol is subjected to a specified sequence of multiple dilution and phase separation steps which serves to extract a substantial portion of the diisopropyl ether and polymeric impurities.  The invention is particularly useful in removing odiferous sulfur-containing impurities from the products of indirect propylene hydration processes which involve the reaction of propylene with sulfuric acid to produce isopropyl sulfate followed by hydrolysis of the sulfate to isopropyl alcohol.
Patent CA-1299439-C (CA)
Title: Method for recompressing bales of fibrous material
Inventor: AST GENE
IPC: B65B13/20
Filed: 1988-01-07
Granted: 1992-04-28
Abstract: ABSTRACT A method for recompressing bales of fibrous material wherein the bales of hay or other fibrous material are recompressed to approximately half of their original volume and then retied with bale twine and then held in a decompression chamber for a sufficient period of time to allow for trapped air to escape and for the fibrous material to loose some of its resiliency before subjecting the retied bales to unrestricted recoil stresses.  Bales are recompressed in the recompression chamber, then tied, then transferred, under full compression, to a decompression chamber where they are held for said period of time prior to being ejected from the machine.
Patent CA-1289248-C (CA)
Title: Method for tagging macro-organisms and an apparatus used in performing the method
Inventor: JEFFERTS KEITH B
IPC: G09F3/00
Filed: 1988-02-08
Granted: 1991-09-17
Abstract: Abstract of the Disclosure In a method for tagging members of a large homogenous group of macro-organisms so that each macro-organism is assigned to a respective one of a plurality of statistically equivalent subgroups, successive segments of wire are cut from a continuous length of wire indeliby marked along the length thereof with a plurality of identification codes at least equal in number to the members of the large homogenous group to be tagged.  Each identification code includes a plurality of longitudinally extending multidigit binary words and a circumferentially extending multidigit binary word.  The circumferentially extending binary word in any identification code has one of a plurality of different values, each of the values occurring in a number of the identification codes substantially equal to the total number of macro-organisms divided by the number of the subgroups.  The different values of the subgroup identification word follow one another along the length of the wire in a pre-established repeating sequence or randomly.
Patent CA-1297193-C (CA)
Inventor: HAZAWA OSAMU
IPC: G06F12/08
Filed: 1988-02-15
Granted: 1992-03-10
Abstract: (046A/M4) "Cache Memory Having Self-Error Checking and Sequential Verification Circuits"                 ABSTRACT OF THE DISCLOSURE A multilevel cache memory system comprises a pseudo-error indicating flag for storing a first logic state when the system is in a normal error checking mode and a second logic state when the system is in a pseudo-error verification mode.  A plurality of first logic gate circuits, associated respectively with the levels of the cache memory, are arranged to be disabled in response to the first logic state and enabled in response to the second logic state.  A register having a plurality of stages corresponding in number to the levels of the cache memory stores level-invalidating data.  A plurality of second logic gate circuits are associated respectively with the register stages for sequentially activating one of the first logic gate circuits in accordance with logic states of the register stages when the first logic gate circuits are enabled.  A plurality of second flags are associated respectively with the first logic gate circuits to give an error indication in response to the activated first logic gate circuits.
Patent CA-1309242-C (CA)
Title: Fibrous tape base material
Inventor: KLOWAK BERNARD G
IPC: C09J7/21
Filed: 1988-02-19
Granted: 1992-10-27
Abstract: ABSTRACT OF THE DISCLOSURE     A sheet of fibrous web material having opposite smooth sur-faces, an apparent bulk in the range of about .10 to about .20 caliper pts/lb ream and a machine direction stretch of at least 8%, wherein surface undulations on the opposite smooth surfaces of the sheet have an amplitude variance of less than .0002 inch.          The invention includes an apparatus and a method of manufacturing the product comprising partially dewatering a wet fibrous web to about 30% to 50% solids, converying the web to a compression nip defined by a smooth-surfaced roll and a smooth-surfaced fabric material, moving the fabric material at a speed of about 10% to 20% less than the surface speed of the smooth-surfaced roll, com-pressing the web in the nip with a compression force of less than 15 lbs/linear inch, with an average pressure of less than about 50 psi in the compression nip, and drying the web.  The dried web¦ has an apparent bulk less than .20 caliper pts/lb ream.
Patent CA-1311882-C (CA)
Title: Cleaning apparatus
Inventor: TAYLOR JOHN
IPC: A47L5/00
Filed: 1988-04-05
Granted: 1992-12-29
Abstract: CLEANING APPARATUS               A B S T R A C T            Cleaning apparatus comprising a hand-held motor-driven brush rotating, in use, to spread cleaning fluid on a surface to be cleaned by the brush, and incorporating means to supply the fluid to the brush head, is characterised by the feature that the brush is a cylindrical brush whose bristles emerge generally from the longitudinal axis about which the cylinder, defined by the bristle-ends, rotates in use; and in another broad aspect by the features, that the motor and optionally the pump form a back-pack unit, with the drive from the motor to the brush, and optionally the fluid line from the pump to the brush, running from this unit to the brush handle and being sufficiently flexible to allow the user of the appar-atus to move the brush about the surface to be cleaned.
Patent CA-1337250-C (CA)
Title: Gellan gum/ starch blends
Inventor: CLARK ROSS C
IPC: A23L29/269
Filed: 1988-05-10
Granted: 1995-10-10
Abstract: Blends of gellan gum and starch are disclosed.  These blends exhibit various useful properties, including improvement in shear stability and improvement in the water holding capacity of the starch.
Patent CA-1315988-C (CA)
Title: Process and apparatus for providing cutting edges
Inventor: ATWATER ROBERT M
IPC: B24B3/36
Filed: 1988-05-12
Granted: 1993-04-13
Abstract: ABSTRACT           Novel methods and apparatus for providing a facet on opposed surfaces of a cutting instrument such as a razor blade or the like.  Essentially, the methods and apparatus are designed to initially abrade opposed surface portions of the instrument concurrently with a relatively high degree of coarseness at a relatively low included angle and thereafter concurrently abrading the opposed surface portions with progressively decreasing degrees of coarseness at progressively increasing included angles.  The facets provided by the methods and apparatus on the opposed surfaces of the instrument have a surface in which the included angle decreases as the distance from the edge of the instrument increases.
Patent CA-1290477-C (CA)
Title: Elevator system leveling safeguard control and method
Inventor: BLAIN JEFFREY W
IPC: B66B13/24
Filed: 1988-06-09
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE         An elevator  control system with  a  local  area network  on  the  traveling cable  and distributed control circuit safeguard for loss of remote microprocessor control with a car door open when floor releveling distance exceeds the landing zone limit.  The elevator control circuit is interactive with the car driving apparatus and with the car door circuit so that when the driving apparatus for the car is leveling the car for passenger load weight gain or loss, the car door is signaled to remain open in the zone of the target floor so long as the distance that the car moves is within the elevator safety code requirements.  A time delay relay interfaced with  an output  channel  circuit of the microprocessor times out to stop the car driving apparatus if the distance limit is exceeded.
Patent CA-1331345-C (CA)
Inventor: CARTER WILLIAM A
IPC: C07H21/00
Filed: 1988-07-15
Granted: 1994-08-09
Abstract: ABSTRACT OF THE DISCLOSURE         A deranged 2'-5'-oligoadenylate synthetase (2',5'A)/RNA-ase L natural defense system in an individual is restored by administering an effective quantity of a double stranded RNA, suitably a double helical RNA capable of serving as both a co-factor for intracellular 2'-5' A synthetase and generator of specific bioactive 2'-5' A oligomer which can activate RNA-ase L.
Patent CA-1335187-C (CA)
Inventor: FARINA VITTORIO
IPC: C07H19/16
Filed: 1988-07-15
Granted: 1995-04-11
Abstract: There is disclosed a novel process to selectively produce .beta.-2',3'-dideoxyinosine in high yields.          .beta.-2',3'-Dideoxyinosine so produced is useful as an antiviral and antibiotic agent.