baber/WOPTO huggingface dataset:
Patent CA-1147538-A (CA)
Inventor: BLAIR HOWARD D
IPC: B23K35/28
Filed: 1980-01-16
Granted: 1983-06-07
Abstract: ABSTRACT OF THE DISCLOSURE    A method of joining silicon nitride based ceramic bodies is disclosed.  At least one interfacing surface of shaped bodies (one or both of which may be hot-pressed or reaction-sintered) receives a layer of metallic aluminum based material.  the bodies with the metallic aluminum based material therebetween are subjected to beating at 1400-1900°C for a period typically .5-2 hours in a nitriding atmosphere to effect a chemical bond consisting of A conversion of the interfacing ceramic to a Si-Al-O-N system.
Patent CA-1137699-A (CA)
Inventor: MEISERT ERNST
IPC: C08G18/10
Filed: 1980-04-29
Granted: 1982-12-14
Abstract: Mo-2055 LeA 19,643 PROCESS FOR THE PRODUCTION OF CELLULAR POLYURETHANE ELASTOMERS            ABSTRACT OF THE DISCLOSURE       The instant invention is directed to a process for the production of a cellular polyurethane elastomer having a density of 0.45 to 0.8 g/cm3, comprising:        (a)  preparing a prepolymer having an isocyanate content of 10 to 25% by weight from aromatic polyisocyanates and a portion of one or more polyhydroxyl compounds having a molecular weight of from 400 to 6,000; and (b)  reacting said prepolymer with the remainder of said polyhydroxyl compound and water; wherein the quantity of said water is 0.3 to 1% by weight and the equivalent ratio of isocyanate groups to isocyanate reactive compounds is in the range of 0.95:1 to 1.1:1, characterized in that from 0.1 to 0.8% by weight, based on the whole reaction mixture, of aromatic diprimary diamines having a molecular weight from 108 to 500 are also used in (a) or (b).     LeA 19,643
Patent CA-1161393-A (CA)
Inventor: LYNCH RICHARD W
IPC: C25B1/46
Filed: 1980-05-29
Granted: 1984-01-31
Abstract: C-7734 IMPROVED ELECTROLYTIC PROCESS FOR POTASSIUM HYDROXIDE Abstract of the Disclosure Improved current efficiency is obtained in an electrolytic membrane cell for the production of potassium hydroxide by employing in combination: a) a membrane comprised of a carboxylic acid substituted polymer prepared by reacting a fluorinated olefin with a comonomer having a functional group selected from the group consisting of carboxylic acid and a functional group which can be converted to carboxylic acid; b) a potassium chloride brine feed through the anolyte chamber of the cell having a concentration in the range from about 250 to about 300 grams of potassium chlo-ride per liter; c) a cell operating temperature in the range from about 90 to about 100°C; d) producing a depleted brine in the anolyte chamber after electrolysis in which the potassium chloride consumed by electrolysis ranges from about 5 to about 15 percent by weight of the potassium chloride originally present in the brine feed, and e) maintaining a catholyte potassium hydroxide concentration in the range from about 500 to about 600 grams potassium hydroxide per liter.
Patent CA-1144025-A (CA)
Inventor: WICHMAN CYNTHIA A
IPC: A61B19/08
Filed: 1980-06-09
Granted: 1983-04-05
Abstract: SURGICAL DRAPE                  ABSTRACT OF THE DISCLOSURE         A surgical drape comprising, a sheet of flexible mate-rial for covering a portion of a patient's body, a fenestration, first and second flaps on opposed sides of the fenestration and defining openings facing toward the fenestration, and a third flap spaced from the fenestration and connecting the first and second flaps, with the third flap defining an opening facing toward the fenestration.
Patent CA-1133225-A (CA)
Inventor: LECERF ANDRE
IPC: C01B35/12
Filed: 1980-06-25
Granted: 1982-10-12
Abstract: A positive active material for an electric cell, said material being constituted by anhydrous copper borate whose formula is Cu3B2O6. A method of making such an active material. An electric cell whose positive active material (3) is anhydrous copper borate Cu3B2O6, whose negative active material (6) is lithium and whose electrolyte is a solution which is liquid at ambient temperature and whose solvent is an aprotic compound.
Patent CA-1146642-A (CA)
Inventor: BIANCHI GIUSEPPE
IPC: H02G3/04
Filed: 1980-06-26
Granted: 1983-05-17
Abstract: ABSTRACT OF THE DISCLOSURE:  System and method for the re-strained and flame-retardant laying of one or more electric cables in a duct with a flat bottom.  The ductway comprises a series of rigid and non-flammable elongated elements, each with a U-shape cross section, which are individually anchored to a flat floor and are arranged so that there is a space between contiguous elements.  This space is sealed along its outer perimeter with a flexible and non-flammable material thereby forming a longitudinally sealed duct.  One or more electric cables are laid inside the duct and the cable ends are fastened in fixed positions.  The duct is filled with sandy materials and is completed with a slab attached to the top of each elongated element and arranged so that there is a space between contiguous slabs.  This latter space is sealed along its outer perimeter with a flexible and non-flammable material.  The duct and the sandy materials constitute protection against fire.  The spaces between contiguous elongated elements and between corresponding contiguous slabs serve to avoid the harmful effects of forces, generated both inside and outside of the duct,due to variation of cable working temperature and to settling.
Patent CA-1140191-A (CA)
Inventor: HUX GUIDO
IPC: H01H33/56
Filed: 1980-07-31
Granted: 1983-01-25
Abstract: INVENTORS:  GUIDO HUX and HUBERT HALLIMANN          INVENTION:  GAS-BLAST SWITCH     ABSTRACT OF THE DISCLOSURE     A substantially tubular-shaped support insulator, which is supported upon a support or carrier housing, supports at least one switching chamber or compartment within which there are arranged contacts which can be brought into and out of engagement with one another.  The switching chamber and the internal spaces of the support housing and the support insulator are encapsulated towards the outside, but however are in flow communication with one another and contain a compressed extin-guishing gas.  To prevent condensation of the extinguishing gas there is provided an extinguishing gas-heating device which is operatively connected by means of the support insulator with the switching chamber.  In order to retard as little as possible the circulation of the extinguishing gas, caused by the heating device, within the gas-blast switch even with appreciable structural heights of the support insulator, there extends from the switching chamber a connection line which is arranged adjacent the support insulator and which leads to the heating device.
Patent CA-1161259-A (CA)
Inventor: ACHESON WILLARD P
IPC: E21B43/243
Filed: 1980-09-03
Granted: 1984-01-31
Abstract: METHOD AND APPARATUS FOR THE RECOVERY OF POWER FROM LHV GAS    Abstract of the Disclosure A method and apparatus are disclosed for the utilization of energy in gas of low heating value.  The low heating value gas is preheated, mixed with an amount of air that will provide oxygen in an amount that will limit the maximum temperature rise in a catalytic combustion chamber to avoid excessive temperatures, and delivered into the catalytic combustion chamber at a temperature exceeding about 400° F. that will cause ignition of the combustibles on contact with the catalyst.  In a preferred embodiment, com-bustion is accomplished in two combustion chambers connected in series with a heat exchanger between the combustion chambers for cooling the combustion products discharged from the first combustion chamber before they are delivered to the next combustion chamber.  Approximately fifty percent of the total combustion air is mixed with the combustible gas before delivery into each of the combustion chambers.  Effluent from the second combustion chamber is used to drive a gas turbine for generation of power or direct driving of air compressors.
Patent CA-1123645-A (CA)
Inventor: CARON JAMES O
IPC: E01C19/26
Filed: 1980-09-16
Granted: 1982-05-18
Abstract: Abstract of the Disclosure A half-cap body for use in replacement cap for the tip of a compaction wheel foot.  The cap includes a pair of half-cap bodies weldable together on the end of the tip.  Each half-cap is a generally rectangular annulus and formed with an inner end portion having facets which abut to form V-shaped weld pockets between the half-caps.  The half-caps are shaped so as to snugly fit on tips having varied wear patterns.  Replacement time, weld material and replacement costs are thereby reduced.
Patent CA-1150855-A (CA)
Inventor: PEEK HERMANUS L
IPC: H01L23/52
Filed: 1980-10-01
Granted: 1983-07-26
Abstract: ABSTRACT:           A method of manufacturing a semiconductor device in which a surface of a semiconductor body is provided with a first insulating layer having a dielec-tric thickness which is homogeneous throughout the surface, on which a first conductor pattern of poly-crystalline silicon is provided, on which first con-ductor pattern a second insulating layer is formed by oxidation of said pattern in such manner that the dielectric thickness of the first insulating layer remains approximately constant, after which a second conductor pattern is provided on and beside the second insulating layer, characterized in that insulating paths are formed between the formation of the second insulating layer and the provision of the second con-ductor pattern while avoiding an alignment step and while using successive depositing and etching steps, which insulating paths fill substantially only spaces below edges of the second insulating layer, during which deposition step a temporary layer is deposited to a thickness exceeding half the height of the space and during which etching step the temporary layer is removed from the second insulating layer.
Patent CA-1154689-A (CA)
Inventor: ORFIELD STEVEN J
IPC: G10K11/175
Filed: 1980-10-14
Granted: 1983-10-04
Abstract: Abstract A method and apparatus for masking sound is dis-closed.  A master sound masking unit (14) having a sound masking generator  (20),  an amplifier (22),  a ten-octave equalizer (24) and a dual voice coil speaker (26) there-within.  Slave sound masking units (16) are connected to master unit (14) by detachable cables (18).  Master unit (14) may also be used alone without slave units (16).  If used with slave unit  (16),  master and slave units are arranged into zones and connected and adjusted in accord-ance with the method for producing optimum sound masking results described herewithin.
Patent CA-1164422-A (CA)
Inventor: SAGET PIERRE
IPC: B04B5/12
Filed: 1980-10-28
Granted: 1984-03-27
Abstract: PATENT APPLICATION   entitled: PROCESS FOR CENTRIFUGAL SEPARATION AND APPARATUS           FOR CARRYING IT OUT, APPLICABLE TO A MIXTURE OF PHASES OF ANY STATES.   in the name of:  Pierre SAGET     ABSTRACT OF THE DISCLOSURE             The invention relates to a  process for centrifugal separation and to an apparatus for carrying it out, applicable to a mixture of phases of any states, said apparatus comprising, disposed coaxially and moved in rotation in a fixed enclosure, a fan adapted to create a depression upstream, a rotary distributor converting the pressure drop resulting from the action of the fan on the upstream pressure into a speed of rotation of the mixture added in the same direction to the positive speed of rotation of said distributor, and a rotor comprising elements for guiding running streams, trap elements which imprison still layers and pick up heavy  particles, elements for conducting these latter.
Patent CA-1140745-A (CA)
Inventor: LEVERENZ MELVIN E
IPC: B05C9/04
Filed: 1980-12-11
Granted: 1983-02-08
Abstract: Abstract of the Disclosure A dispensing apparatus for dispensing metered quantities of a particulated material such as, for example, seasoning materials including salt, pepper or the like, in which the particulated material is discharged in the form of a substantially uniform curtainous stream and the articles or foodstuffs are transferred through the curtain-ous stream, a plurality of times to assure substantially uniform coating of the surfaces thereof.  The apparatus includes slinger means for dispersing and propelling the articles through an upper section of the curtainous stream from the upstream to downstream side thereof and deflector means for intercepting and redirecting the articles back through the curtainous stream through an intermediate section thereof to the upstream side thereof.  In accordance with a preferred embodiment, a conveyor is provided for receiving the articles passing through the intermediate section of the curtainous stream and transferring the articles back through the curtainous stream from the upstream to downstream side thereof, effecting multiple contact with the particulated material being dispensed. In accordance with a further preferred embodiment, the curtainous stream of particulated material is achieved by employing and endless foraminous flexible belt incorporating a plurality of cavities and supply means which fill the cavities with the particulated material to be dispensed. The particulated material in the cavities is gravitationally discharged at a position downstream from the supply means in the form of a curtainous stream.
Patent CA-1158367-A (CA)
Inventor: KLEIN CARL F
IPC: H01G7/02
Filed: 1981-01-08
Granted: 1983-12-06
Abstract: FABRICATION OF NON-CONDUCTIVE             CHARGED SENSING PROBE UNIT              Abstract Of The Disclosure A sensing probe unit includes an electrically nonconductive polymeric layer charged with a permanent electric charge to form an electret and intimately bonded to a compensating metal electrode.  In the fabrication, the polymeric layer is cleaned and the metal electrode affixed to one surface by vapor deposition, lamination or baking.  The polymeric layer may also be applied by coating the electrode with dielectric particles and then heating the subassembly to fuse the particles into an integral layer and to bond the fused layer to the electrode.  The subassembly is thermally destressed and the polymeric layer is thereafter charged by triboelectric charging, corona discharge or electron beam charging, or by liquid contact charging processes.  In the latter, a Freon-type or other similar liquid having good wetting properties and high evaporation rate is used as a contact charging liquid which creates a particularly stable electret.  The sensing probe is stored to prevent loss of charge and sensitivity.  The sensing probe unit in a pollutant and combustion detection apparatus is mounted within a suitable apertured ground shield unit with an exposed dielectric sensing surface to form an electro-static sensor or a capacitor sensor.  The compensating electrode is connected to a high impedance detection amplifier.
Patent CA-1156898-A (CA)
Inventor: BORZONE ROCCO R
IPC: A61B17/58
Filed: 1981-01-30
Granted: 1983-11-15
Abstract: P.C. 6269 SOFT TISSUE RETAINER FOR USE WITH BONE   IMPLANTS, ESPECIALLY BONE STAPLES                    Abstract A novel combination of a bone implant, e.g. a bone staple, and a tissue retention element in sliding relation therewith is disclosed.  The tissue retention element is provided with a multiplicity of teeth capable of piercing and holding in place adjacent soft tissue when the implant is driven into the bone structure of a patient.  Since the tissue retention element is separable from the implant, the same element can be used in combination with different bone implants.
Patent CA-1158059-A (CA)
Inventor: BAUER KLAUS
IPC: A01N47/30
Filed: 1981-02-20
Granted: 1983-12-06
Abstract: HERBICIDAL COMPOSITIONS Abstract of the Disclosure Herbicidal compositions which comprise an amount of a com-pound A of the formula               (A) in which R is chlorine or bromine, X is oxygen or sulfur, and R1 is hydrogen, (C1-C4)-alkyl or a cation equivalent, in combination with the compound         ;   the weight ratio of the components (A) : (B) being prefer-ably from 5 : 1 to 1 : 20. The compositions are distinguished by a synergistic effect, especially against mono- and dicotyledonous weeds.
Patent CA-1154368-A (CA)
Inventor: GHILARDI GIULIANO
IPC: B60C3/04
Filed: 1981-02-27
Granted: 1983-09-27
Abstract: IMPROVEMENT IN THE MOLDING OF TIRE CARCASSES                  Abstract of the Disclosure A vulcanized molded tire, oomprising a carcass of one or more plies of rubberized cord fabric, sidewalls and a tread band, with shoulders at the joining points botween said sidewalls and tread, snd a breaker comprising a binding structure on each lateral portion, inserted between the carcass and the tread band. The carcass plies have a profile in the cross-section oomprising in each shoulder a curvilinear tract with the concavity faced towards the outside of the tire, disposed in underlying position with respect to the edges of said breaker and in correspondenoe with said binding structures.
Patent CA-1139307-A (CA)
Inventor: CAMERON JACQUELYN J
IPC: A23J1/14
Filed: 1981-03-12
Granted: 1983-01-11
Abstract: ABSTRACT OF THE DISCLOSURE A substantially undenatured protein isolate is formed from certain legumes and oil seeds, typically rapeseed (canola), by extracting protein from the source material with water and then diluting the resulting protein solution with more water.  The dilutiog forms a dispersion of protein aggregates which are settled from the dispersion.
Patent CA-1161944-A (CA)
Inventor: YAMASHITA AKIRA
IPC: H04N5/60
Filed: 1981-04-14
Granted: 1984-02-07
Abstract: TITLE OF THE INVENT ON:      Multiplexed Television Audio Signal Receiver ABSTRACT OF THE DISCLOSURE:         In a receiver of the type capable of receiving a second or third subchannel audio signal which contains no pilot signal and which is multiplexed with the television audio signal, only the subchannel signal frequency com-ponents pass through a band-pass filter the output of which is fed to a clipper circuit so that the carrier level of the output is suppressed.  The output of the clipper circuit is detected whether the subchannel signal is present or absent or subchannel signal is increased so that a squelch circuit is turned off and a display device is turned on or vice versa.
Patent CA-1253874-A (CA)
Inventor: MCLAUGHLIN JOSEPH E
IPC: C09D133/06
Filed: 1981-04-23
Granted: 1989-05-09
Abstract: ABSTRACT OF THE DISCLOSURE             A reactive catalyst which is a solid at 30°C for liquid coating compositions and a process for making this catalyst in which the catalyst has one of the following structures:                                           or mixtures of the above; where R is an alkyl group or a hydroxy alkyl group having 6-18 carbon atoms; the catalyst is prepared by reacting in a 1:1 molar ratio trimellitic an-hydride and an aliphatic monohydric alcohol or an aliphatic diol; the catalyst is useful in liquid coating composition in which the binder is composed of a polymer having reactive hydroxyl, epoxy or methylol amide groups and a melamine, benzoguanamine, or urea crosslinking agent.
Patent CA-1169190-A (CA)
Inventor: BOLON DONALD A
IPC: C08L79/08
Filed: 1981-05-14
Granted: 1984-06-12
Abstract: ABSTRACT OF THE DISCLOSURE         Interaction of ethylene glycol with a preformed polyesterimide resin at elevated temperatures forms mixtures homogeneous and clear at room temperature and also soluble in non-polluting solvents, such as monoethers of glycols.
Patent CA-1165029-A (CA)
Inventor: APFEL RUSSELL J
IPC: H04B1/66
Filed: 1981-06-17
Granted: 1984-04-03
Abstract: "subscriber Line Audio Processing Circuit Apparatus"          ABSTRACT       Subscriber line audio processing circuit apparatus comprising an analog-to-digital converter (16) coupled to a subscriber line for sampling an input audio signal at a first sampling frequency and for developing a series of digital words representing the amplitude of each sample, a first signal processor (18) for digitally filtering the series of digital words and for developing a first digitally processed signal having a second sampling frequency, a transmit register (20) for transmitting the first ligitally proceseed  signal  to an external transmission line, a receiver register (22) for receiving a digital response signal at the second sampling frequency, a second signal processor (24) coupled to the receiver register for filtering the response signal and for developing a second digitally processed signal having a third frequency, a digital-to-analog converter (26) for converting the second processed signal to analog form suitable for output to the subscriber line, circuitry (44) and (66) coupling the first and second signal processor together and enabling the apparatus to match the input impedance of the subscriber line and to balance out components of the second processed signal coupled into the first processed signal, and a control interface (32) for allowing the first and second signal processors to be digitally controlled from an external source.
Patent CA-1169058-A (CA)
Inventor: RICE KENNER C
IPC: C07D221/28
Filed: 1981-07-03
Granted: 1984-06-12
Abstract: ABSTRACT OF THE DISCLOSURE           A method of producing morphinan compounds which incorporates double advantages over the prior art, such as the utilization of .beta.,.gamma.-unsaturated ketones in place of the .alpha.,.beta.-unsaturated ketones previously used.  Additionally, in the step where .beta.,.gamma.-unsaturated bromoketones proceed to 1-bromo-N-formylnordihydrothebainone (morphinan) there are utilized super acids, such as trifluoromethane sul-fonic, trifluoroethane sulfonic and mixtures thereof, and also antimony pentafluoride and mixtures of hydrogen fluoride and antimony pentafluoride.  Super acids work, whereas the prior art shows that cyclization in the pres-ence of acids, even strong acids, such as sulfuric, phos-phoric, do not work.
Patent CA-1158869-A (CA)
Inventor: EFFLANDT JAMES F
IPC: A01D34/82
Filed: 1981-08-04
Granted: 1983-12-20
Abstract: DEFLECTOR MEMBER FOR A ROTARY LAWN MOWER     ABSTRACT OF THE INVENTION     A lawn mower comprises a housing which encloses a rotary cutting blade and which includes a sidewall having therein a generally horizontal grass discharge passage.  A member is carried by the housing and extends in the grass discharge passage below the plane of cutting blade rotation.  The member includes an inner edge portion which is located adjacently outside the periphery of the path of cutting blade rotation and an oppositely spaced outer edge portion.          A lip extends generally vertically downwardly from the outer edge portion.  The member deflects objects struck by the cutting blade and thereby obstructs the discharge of these objects outwardly from the housing through the grass discharge passage.
Patent CA-1164773-A (CA)
Inventor: GOULD BRUCE M
IPC: A23B4/26
Filed: 1981-10-07
Granted: 1984-04-03
Abstract: ABSTRACT     Processing apparatus includes a rotatable drum in which different products can be processed.  Such process-ing includes the kneading of food pieces and the blending of food constituents.  The drum is mounted on an inclined axis and there are spiral flights along the side wall of the drum.  Charging and discharging the drum is effected through an open end and the drum includes a door for airtight sealing of the drum.  A vacuum can be drawn inside the drum for different types of processing or there can be pressure applied.  A kneading action can be applied to massaging or tumbling meat chunks, and treat-ment liquids can be added to the drum and/or the food pieces for processing.
Patent CA-1161247-A (CA)
Inventor: ANNOVI GIUSEPPE
IPC: A43B5/04
Filed: 1981-10-26
Granted: 1984-01-31
Abstract: ABSTRACT OF THE DISCLOSURE:         A ski boot consists of a foot portion and a leg portion connected in articulated relationship. A stiffening element at the front of the boot formed of resilient material has substantially the profile of the boot and is attached at least partially to the foot portion and/or the leg portion thereof.