baber/WOPTO huggingface dataset:
Patent CA-1292462-C (CA)
Inventor: HUBERTSON FOLKE
IPC: F16K1/226
Filed: 1987-12-24
Granted: 1991-11-26
Abstract: ABSTRACT A butterfly valve comprises a valve housing (1) with an axial passage (4) for a fluid medium; a valve seat in the form of a seat ring (8) which is displaceable within a slot (7) in the valve housing in a radial direction relative to the axial passage, the seat ring elastically deformable as to its shape in the radial direction; and a throttle (5) arranged so as to be pivotable about an axis of rotation (23) between an open position and a shot-off position, the throttle having a seal face (21) on its periphery (18) which is pressed against the seat ring when the throttle is in the shut-off position. The shape of the seal face is defined by lines of intersection between the seal face and planes of intersection coinciding with a centre line (22) of the throttle. Lines of intersection between the seal face and a first plane, coinciding with the axis of rotation of the throttle and perpendicular to a plane of symmetry of the throttle consist of circular arcs having a first radius, R, with a foot point on the axis of rotation. Lines of intersection between the seal face and all other planes of intersection have a curvature other than said first radius, R.
Patent CA-1305936-C (CA)
Title: Process for making middle distillates using a silicoaluminophosphate molecular sieve
Inventor: MILLER STEPHEN J
IPC: C10G47/18
Filed: 1988-01-11
Granted: 1992-08-04
Abstract: ABSTRACT OF THE DISCLOSURE         Using a catalyst comprising a silicoaluminophos-phate molecular sieve such as SAPO-11 and SAPO-41, and platinum or palladium, a hydrogenation component, heavy oils are simultaneously subjected to hydrocracking and isomerization reactions.  The process selectively produces middle distillates in high yields having good low tempera-ture fluid characteristics, especially reduced pour point and viscosity.
Patent CA-1329928-C (CA)
Inventor: TERAMOTO TOMIHIKO
IPC: E01B9/68
Filed: 1988-01-18
Granted: 1994-05-31
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed is an improved turnout unit to be employed in turnout point of railway tracks, which does not necessitate maintenance of the sliding surface of the base plate.  In the turnout unit of the present invention, a spray-coated ceramic layer is formed on the base plate and the tongue rail slides on the ceramic layer.
Patent CA-1300383-C (CA)
Title: Blade for rotary lawnmowers and the like
Inventor: ADCOCK PAUL R
IPC: A01D/
Filed: 1988-01-22
Granted: 1992-05-12
Abstract: ABSTRACT      A rotary blade for lawnmowers and the like havng a plurality of flexible and resilient blade members angularly spaced about a central hub portion.  The blade is made of plastic, plastic composite, or composite material and is designed to cut grass and the like efficiently but to deflect around obstacles rather than cutting through them and possibly causing injury.          Points of waekness may be provided to ensure that the blade members break off rather than cutting through an obstacle such as the operator's foot.    In order to suit different existing machines the blade may have a specially adapted hub portion, and the blades may incorporate a step to position the cutting edges correctly in relation to the machines spindle.          The blade may be provided with, for example, upturned vanes to facilitate grass collection, and the tips of the blade members may be weighted to provide sufficient flywheel effect for machines powered by reciprocating engines.
Patent CA-1292364-C (CA)
Title: Structure for motor-compressor units used with refrigerant fluids
Inventor: STANZANI FRANCO
IPC: F04B35/04
Filed: 1988-03-07
Granted: 1991-11-26
Abstract: Abstract The motor-compressor unit structure as disclosed consists in a casing (3) the interior of which affords a chamber (4) for the compressor (1), and a housing (5) for the motor (2), the two separated in fluid-tight fashion by a bulkhead (6) through which a sealed passage is offered to the shaft (9) of the compressor (1); the casing (3) also exhibits a set of galleries (13) arranged peripherally around the housing (5), along which the refrigerant fluid is able to flow and thus keep the motor (2) at a given temperature.   fig  1
Patent CA-1293085-C (CA)
Title: Elastomers containing polyamide groups and polyurea groups in bonded form, as well as a process for the preparation of elastic, non-cellular molded articles from these elastomers
Inventor: MATZKE GUENTER
IPC: C08G18/32
Filed: 1988-03-21
Granted: 1991-12-10
Abstract: ELASTOMERS CONTAINING POLYAMIDE GROUPS AND POLYUREA GROUPS IN BONDED FORM, AS WELL AS A PROCESS FOR THE PREPARATION OF ELASTIC, NON-CELLULAR OR           CELLULAR MOLDED ARTICLES FROM THESE                         Abstract The subject of this invention  is elastomers containing polyamide groups and polyurea groups in bonded form, which are prepared by the reaction of a)  at least one organic polyisocyanate and/or a modified polyisocyanate mixture having an NCO content of from 8 to 33.6 weight percent, b)  at least one polyazomethine and c)  at least one alkyl-substituted aromatic polyamine having a molecular weight up to 500, in the presence of or in the absence of d)  catalysts, whereby reaction products of polyoxyalkylenepolyamines, having a functionality of from 2 to 4 and an average molecular weight of from 180 to 10,000 and at least one organic aldehyde and/or preferably ketone, are used as the polyazomethines.
Patent CA-1308602-C (CA)
Title: Method for solubilization of aspartame in effervescent aqueous systems; and composition
Inventor: ALEXANDER THOMAS A
IPC: A61K9/20
Filed: 1988-04-19
Granted: 1992-10-13
Abstract: ABSTRACT     A method and composition for providing aspar-tame as a sweetener in effervescent calcium ion-generating systems is provided.  The method includes a step for providing a selected surfactant in association with the aspartame sweetener, to provide for aqueous solution of the aspartame in the presence of the solublized calcium without film formation and without excessive foaming.  Preferably, the aspartame/surfactant is provided by a granule composition, utilized in asso-ciation with a calcium carbonate/citric acid effer-vescent couple.
Patent CA-1312460-C (CA)
Title: Camouflage covering
Inventor: LOEFGREN PER-KE
IPC: D06M101/16
Filed: 1988-10-27
Granted: 1993-01-12
Abstract: ABSTRACT            A camouflage covering intended for affixing to military objects, particularly heated surfaces of tanks. It consists of layers held together by means of needling and comprises super-absorbent fibers, so that it can be kept cool by evaporating water previously applied. By including conducting fibers, it may have radar camouflage properties. A substantial pile obtained by needling will give a non-reflecting surface.
Patent CA-1310096-C (CA)
Title: Call forwarding arrangement
Inventor: WUTHNOW MARK S
IPC: H04Q11/04
Filed: 1988-11-08
Granted: 1992-11-10
Abstract: IMPROVED CALL FORWARDING ARRANGEMENT            Abstract An improved call forwarding arrangement where forwarded calls receive different terminating treatment from non-forwarded calls, for example providing a readily detectable, distinctive alerting signal for forwarded calls or completing only forwarded calls to a station and denying or forwarding other calls without requiring any customer involvement. The arrangement provides an improved call forwarding service for customers with advanced station display capabilities and, in addition, allows selective answering of only forwarded calls by customers that have conventional, analog station equipment. Both switch-based and station-based implementations are disclosed.
Patent CA-1294335-C (CA)
Title: Cmos voltage divider circuits
Inventor: LEIDICH ARTHUR J
IPC: G01R19/00
Filed: 1988-11-10
Granted: 1992-01-14
Abstract: CMOS VOLTAGE DIVIDER CIRCUITS            Abstract of the Disclosure A CMOS fractional reference source or voltage divider circuit includes a string (chain) of CMOS pairs of transistors connected with their source-drain circuits in series and with ends of the string being connected across an input power (voltage) supply.  The P-channel transistors are all matched to one another in a one to one ratio, the N-channel transistors are all similarly matched to one another.  Output terminals are connected at the nodes between pairs of transistors. Accurate tracking of the voltage of the power supply is achieved by connecting each gate of the chain in a manner to insure the same source-to-gate voltage on each transistor of the pair.  In the preferred form, the string comprises two pairs of CMOS transistors and the voltage appearing at the output terminal thereof is equal to one half of the voltage of the power supply.
Patent CA-1334728-C (CA)
Title: Method of making chewing gum with wax-coated delayed release ingredients
Inventor: ZIBELL STEVEN E
IPC: A23L27/30
Filed: 1988-11-18
Granted: 1995-03-14
Abstract: A process is disclosed for making chewing gum with a wax-coated delayed release ingredient.  According to the method, a quantity of a powdered ingredient, such as a high-potency sweetener, is heated and mixed with a quantity of molten wax, such as a polyethylene wax.  Preferably, the quantity of wax is limited so as to produce a damp mix which is characterized as being dust-free, non-flowing and crumbly.  The damp mixture is then cooled in order to solidify.  The cooled mix is then treated, e.g. by grinding and/or screening, to produce the desired particle size range in the coated ingredient particles.
Patent CA-1324360-C (CA)
Title: Ceiling boxes for ceiling fan support
Inventor: JORGENSEN ROBERT W
IPC: H02G3/20
Filed: 1989-03-16
Granted: 1993-11-16
Abstract: CEILING BOXES FOR CEILING FAN SUPPORT            Abstract of the Disclosure A ceiling box for mounting and supporting a ceiling fan thereto.  The ceiling box includes a top wall portion with a side wall portion surrounding the periphery of the top wall portion.  The box is open at the end opposite the top wall portion and the side wall portion has a pair of flanges extending normal  thereto  into the  open end of the  box. These  flanges  have  holes  therein  for  receiving  fan supporting  screws.   In  a  first  embodiment,  a  pair  of threaded mounting screw holes are formed in the top wall portion and are each axially aligned with an unthreaded hole that extends through the respective flange.   In a second embodiment, the holes in the flanges are also threaded for added support.
Patent CA-1324101-C (CA)
Inventor: NADLER MURRAY
IPC: B01J29/62
Filed: 1989-03-17
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE      A process for reforming a hydrocarbon fraction having a limited proportion of Cg+ hydrocarbons.   A hydrocarbon fraction is separated into a light fraction and a heavy fraction, the light fraction containing less than 10% by volume of C9+ hydrocarbon.  The light fraction is reformed in the presence of a monofunctional catalyst, and the heavy fraction is reformed in the presence of a bifunctional catalyst.
Patent CA-1319201-C (CA)
Title: Apparatus and method for accessing data stored in a page mode memory
Inventor: BLAND PATRICK M
IPC: G06F13/36
Filed: 1989-05-03
Granted: 1993-06-15
Abstract: ABSTRACT OF THE DISCLOSURE      A computer system is provided in which memory access time is substantially reduced.  After row address strobe (RAS) and column address strobe (CAS) signals are used to select a particular address in a memory during a first memory cycle, the addressed data is latched for later transfer to a data bus.  A CAS precharge of the memory is then conducted after such latching and prior to the end of the first memory cycle before the commencement of the second memory cycle.
Patent CA-1327420-C (CA)
Title: Chlorinated terpolymers of ethylene
Inventor: ARMSTRONG ADRIAN R
IPC: C08F210/02
Filed: 1989-05-19
Granted: 1994-03-01
Abstract: TITLE CHLORINATED TERPOLYMER OF ETHYLENE ABSTRACT OF THE DISCLOSURE          A chlorinated terpolymer of a precursor terpolymer containing 3-20 weight percent acrylic acid as methacrylic acid, 3-20 weight percent vinyl acetate and 60-90 weight percent ethylene is disclosed.  The chlorinated terpolymer contains 20-60 and preferably 25-55 weight percent chlorine.
Patent CA-1306108-C (CA)
Title: Slipper sock construction and method for making same
Inventor: CHILEWICH SANDY
IPC: A43B9/08
Filed: 1989-06-12
Granted: 1992-08-11
Abstract: Abstract A method for constructing a slipper sock from a sock and a flexible sole is provided. After adhering the sole to the bottom of the sock, the sock is turned inside out and then a stitch is run along the perimeter of the sock sole in order to create a uniform and aesthetically appealing seam along the raw edge of the sole when the slipper sock is turned right side out.
Patent CA-1313930-C (CA)
Title: Wholly aromatic polyester film and process for production thereof
Inventor: ISHII TOSHINORI
IPC: C08J5/18
Filed: 1989-06-14
Granted: 1993-03-02
Abstract: Abstract of the Disclosure A wholly aromatic polyester film, (A) which is made of a wholly aromatic polyester consisting essen-tially of the following recurring units I and II ...I and ... II wherein the aromatic ring may be optionally substituted with at least one substituent selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a halogen atom and a phenyl group, said wholly aromatic polyether comprising 10 to 90 mol % of the recurring unit I and 90 to 10 mol % of the recurring unit II, being capable of forming an optically anistropic melt phase, and having a melt strength at a temperature 20 °C higher than its transition temperature to liquid crystal of at least 2.0 g/mm2; (B) said film having an oxygen permeability of not more than 1.0 cc?20µ/m2?day?atm at a temperature 20°C and a relative humidity 65 %; and (C) said film having thermal shrinkages both in the machine direction and in a direction perpendicular thereto of not more than 1 % at a temperature 250 °C. Said said wholly aromatic polyester film can be produced by melt-extruding a wholly aromatic polyester to form into a film under conditions that a shear rate applied to the wholly aromatic polyester in a molten state at the exit of the molding die is not less than 500 sec -1.
Patent CA-1306436-C (CA)
Title: Conveyor chain for container nest
Inventor: WALTER JOHN
IPC: B65G17/12
Filed: 1989-06-16
Granted: 1992-08-18
Abstract: ABSTRACT            This relates to a special endless conveyor chain particularly adapted to carry mixtures which are to be readily removable and replaceable on the conveyor chain. In order to accomplish this, the pins which connect together the links of a conventional conveyor chain are elongated above the conveyor chain for reception in bores within an associated fixture. The conveyor chain 18 formed of elongated links and shorter links with the length of the elongated links being in accordance with the general dimensions of a fixture longitudinally of the conveyor chain. Each upper one of the elongated links is provided with a flat upper surface so as to provide a supporting surface for a fixture to be mounted thereon. Instead of the usual strap-like configuration, each upper elongated link 19 preferably provided with an enlarged central portion which may be circular in outline to provide an adequate seat for an associated mixture. A special sprocket may be provided for the conveyor chain with the sprocket having circumferentially spaced teeth for reception between customary rollers of the conveyor chain and with the sprocket further having between each pair of teeth a radially outwardly projection for projecting between elongated links of the conveyor chain with the sprocket projection being in supporting relation with respect to an associated upper elongated link whereby a loading placed on a fixture carried by the conveyor chain is first transmitted to an associated upper elongated link and through that link to the underlying sprocket projection.
Patent CA-1285266-C (CA)
Title: Rotatable cutting bit
Inventor: OJANEN RANDALL W
IPC: E21B10/56
Filed: 1989-06-29
Granted: 1991-06-25
Abstract: A rotatable cutting insert of the type having a shank depending from a head portion and having a hard insert mounted therein, includes an improved insert having a conically shaped tip section, a base section and an intermediate section with the maximum diameter of the tip section smaller than the diameter of the base section.
Patent CA-1333879-C (CA)
Inventor: ROSEN AKE
IPC: B29C48/16
Filed: 1989-07-31
Granted: 1995-01-10
Abstract: Flexible, creased material in sheet or web form for the manufacture of liquid-tight packing containers of good dimensional rigidity, which material comprises one or more base layers laminated to one another of a mineral-filled thermoplastics comprising between 50 and 80% calculated on the total weight of the mixture , of an inorganic, particulate mineral filler. Said thermoplastics is chosen among propylene-based polymers with a melt index of between 0,5 and 5 according to ASTM (2,16kg, 230°C) and said base layer or base layers are provided with a pattern of crease lines which have been formed by plastic deformation in connection with or immediately after the extrusion of said base layer or base layers.
Patent CA-1319803-C (CA)
Title: Method for manufacture of cast fluoropolymer-containing films at high productivity
Inventor: EFFENBERGER JOHN A
IPC: B29L9/00
Filed: 1989-07-31
Granted: 1993-07-06
Abstract: ABSTRACT OF THE DISCLOSURE           A method is provided for preparation of a fluo-rpolymeric film on a carrier, comprising:        (a)  preparing an aqueous dispersion comprising a halopolymer, e.g., a fluoropolymer;        (b)  coating the carrier belt with the dispersion;        (c)  moving the coated carrier belt through a metering zone to remove excess dispersion;      (d)  drying the metered coated carrier to remove the water from the dispersion;        (e)  heating the dried coated carrier belt to a temperature sufficient to at least substantially eliminate surfactants in the dispersion;        (f)  further heating the carrier belt to a temperature to melt or to soften the halopolymer;        (g)  cooling the polymer-coated carrier belt to consolidate the coated polymers; and (h) stripping the consolidated halopolymeric film from the carrier belt.         The carrier belt has a low thermal mass with chem-ical and dimensional stability at the melting or softening temperature of the halopolymer, is uniformly wettable by the first dispersion applied, and exhibits a work of adhesion to the consolidated polymer coating that does not exceed the peel strength of the consolidated polymeric film.
Patent CA-1318789-C (CA)
Title: Lens grinding methods and apparatus
Inventor: SMITH KENNETH L
IPC: B24B47/22
Filed: 1989-08-17
Granted: 1993-06-08
Abstract: Abstract of the Disclosure A lens grinding machine includes a grinding tool mounted on a tool support, and a lens holder mounted in a tailstock assembly.  The lens is positioned for grinding by advancing the tailstock assembly into engagement with the tool support.  A push-back member carried by a housing of the tailstock assembly is actuated to displace the tailstock housing to a predetermined spacing from the tool reference axis.  A dial carried by the tailstock housing and operably connected to the lens holder is rotated to bring a desired lens thickness-related value on one scale into alignment with a lens diopter-related value on an adjacent scale, whereupon a precise grinding position of the lens is attained.
Patent CA-1328593-C (CA)
Inventor: KALIMAN JOSEF
IPC: A61M25/00
Filed: 1989-09-21
Granted: 1994-04-19
Abstract: ABSTRACT OF THE DISCLOSURE      A thrombectomy catheter has a flexible twisted guide probe along which the catheter tube and tool can be threaded into an artery and which is driven by its end remote from an exploratory finger formed by the guide probe and projecting beyond a cutting tool at the end of the tube.  The guide probe delivers torque to the tool to rotate the latter thereby eliminating the need to extract the guide probe from the tube and insert a separate drive element.
Patent CA-1339690-C (CA)
Title: Decing or antiicing fluids for aircraft
Inventor: SCHRIMPF HANS
IPC: C09K3/18
Filed: 1989-09-22
Granted: 1998-03-03
Abstract: Deicing/antiicing fluids for aircraft which contain essentially glycols, crosslinked polyacrylic acid, a nonionic surfactant based on alkoxylated C10-C20 alcohols, corrosion inhibitors, a mixture of NaOH and KOH, an antioxidant and water, reduce the loss of lift by having improved runoff characteristics from the wings while giving a refreeze holdover time of not less than 30 minutes.
Patent DK-156552-C (DK)
Inventor: MARCHETTI AUGUSTO
IPC: B65B51/06
Filed: 1985-10-17
Granted: 1990-02-12
Abstract: From a casing destined for the fixing to a sealing machine project, at rest, an inlet roller and an outlet roller, which the same carton to be sealed forces to return into the outline of the casing during their advancement from one to another end of the casing. To the inlet roller is supplied an adhesive tape, which the same carton picks up and causes to adhere to the front wall, the adjacent horizontal wall and the rear wall by means of said inlet and outlet rollers. A cutting blade is arranged between said inlet and outlet rollers and is provided with suitable actuating means, which cause it to carry out a rapid run of cutting of the adhesive tape after the rear wall of the carton has overcome the blade a prefixed length.
Patent DK-162029-C (DK)
Inventor: PEREZ ANTONIO CAMBREDO
IPC: B25G3/08
Filed: 1985-12-17
Granted: 1992-02-10
Abstract: A plug-and-socket coupling temporarily attaches a handle to an implement. The plug has a cylindric plug body with an attachment device on one end for one of the handle or implement. A flange projects radially from the attachment-device end of the plug body and has an annular socket-engaging surface which is normal to the axis of the plug body. A spring strip projects from the flange annularly spaced from the plug body by the socket-engaging surface and parallel to the axis of the plug body. The socket of the coupling has a cylindric, tubular socket body with an attachment device on one end for the other of the handle or implement. The other end of the socket body is received between the plug body and its sprng strip when the plug and socket are coupled. A latching feature on the inside of the spring strip extending transversely to the axis of the plug body cooperates with a latching feature on the outside of the socket body for the temporary attachment. At least two axial notches of different lengths on at least one of the plug body and spring strip cooperate with at least two axial ribs extending radially from the socket body as anti-twisting structures, at least one of the ribs extending farther from the attachment-device end of the socket body than the latching feature thereof.
Patent DK-159964-C (DK)
Inventor: MILLER JOHN B
IPC: E04G23/02
Filed: 1985-12-30
Granted: 1991-05-27
Abstract: Method for rehabilitating of concrete layers where formation of carbonate has occured, especially in connection with reinforced concrete and/or brickwall constructions. The surface of the concrete that is exposed to air is coated with a sealing layer (15), and the concrete layer (12) where formation of carbonate has occurred and the adjacent concrete (14) are supplied with water during a period of realkalization.
Patent FI-81276-C (FI)
Inventor: CHAO HUNG-YA
IPC: B41M5/165
Filed: 1985-08-29
Granted: 1990-10-10
Abstract: A method of microencapsulation is disclosed whereby two or more organic-in-aqueous emulsions, each containing a reactive component in the organic phase, are mixed together causing the reactive components to react and form polymeric walls around the organic droplets. Either, neither or both emulsions may contain one or more fill materials in their organic phase.