baber/WOPTO huggingface dataset:
Patent CA-1183645-A (CA)
Inventor: MESSMER KARLHEINZ
IPC: C08F20/00
Filed: 1982-02-18
Granted: 1985-03-05
Abstract: Abstract of the Disclosure:  Maleic anhydride copolymer powders are prepared by a process wherein a solution or dispersion of maleic anhydride in an alkyl vinyl ether and/or an alkene, containing from 3 to 25 moles of the alkyl vinyl ether and/or alkene per mole of maleic anhydride, is brought into contact with a powder bed under polymer-ization conditions, and is polymerized in the bed whilst the reaction mass is circulated and the powder state is maintained, and the heat generated during polymerization is removed by evaporating excess monomer which boils lower than maleic anhydride.   The products are useful as crust inhibitors for detergents, dispersants for pigments, paper sizes, adhesive auxiliaries, cosmetic auxiliaries and thickeners for aqueous polymer solutions or dispersions.
Patent CA-1173082-A (CA)
Inventor: SATAKE TOSHIHIKO
IPC: F16K31/06
Filed: 1982-02-25
Granted: 1984-08-21
Abstract: ABSTRACT OF THE DISCLOSURE         A pressurized fluid jetting device for use is a color sorting apparatus for sorting granular materials according to their colors by the blowing action of a pressurized fluid from the pressurized fluid jetting device.  The device has a main body portion having a cylindrical member, a cap member detachably secured to the outlet end of the main body portion with a valve seat member and a pressure receiving plate fixed therebetween, and a valve plate movable between the valve seat member and the pressure receiving plate.  The cylindrical member has an internal cavity defining a fluid passage connected to a source of a compressed fluid such as compressed air and a solenoid means adapted to be selectively energized in accordance with the state of detection of grains of different colors.  Usually the valve plate is pressed onto the valve seat member to shut off the flow of the fluid but, as the solenoid means is energized, the valve plate is strongly attracted to strike the pressure receiving plate to cause a rapid wear of the latter as a result of a frequent repetitional operation.          The pressure receiving plate can be renewed easily because it is formed as a body separate from the cylindrical member constituting the main body of the device.
Patent CA-1202138-A (CA)
Inventor: ROCHOLL JOHAN P
IPC: C09D7/65
Filed: 1982-03-15
Granted: 1986-03-18
Abstract: ABSTRACT       LACQUERS FOR WEAR-RESISTANT SURFACES           The wear resistance and other properties of a lacquer are improved by incorporation therein of particles of a high molecular, inert,wear-resistant plastics material having a diameter of 2 to 200 microns.          Such a lacquer is particularly useful for application to metals and may be stored after application.
Patent CA-1168055-A (CA)
Inventor: LECLAIR FRANCIS J
IPC: A01N37/22
Filed: 1982-03-25
Granted: 1984-05-29
Abstract: FLOWABLE HERBICIDES                Abstract of the Disclosure The invention relates to a water-based, flowable herbicide composition of 2-chloro-N-isopropylacetani-lide herbicide (commonly referred to as propachlor).
Patent CA-1222251-A (CA)
Inventor: HAWTHORNE M FREDERICK
IPC: C07F15/00
Filed: 1982-03-31
Granted: 1987-05-26
Abstract: IMPROVED METALLOCARBORANE PRECURSOR AND CATALYST            Abstract of the Disclosure:      An extraordinarily active carborane catalyst for use in  hydrogenation,  hydroformulation  and  isomerization reactions.   The new catalyst is a modification of known metallocarborane  catalysts  having  a  transition metal symmetrically  bonded  to  the  pentagonal  face  of  a dicarborane cage with two triphenylphosphine ligands and one  hydrogen  ligand  occupying  the  remaining  transition metal  ligand  sites.   The new alkene-metallocarborane replaces one of the triphenylphosphine ligands with a lower chelating or bridging alkene which is bound to both the transition metal and the carborane cage.      The alkene-metallocarborane catalyst may be used as a homogeneous catalyst or may be bound to a suitable polymer support for use as a heterogeneous catalyst.  The catalyst has  been  found  to  be  among  the  most  highly  reactive catalysts  known  to  date.    It  is  believed  the  high reactivity of  the  new catalyst  is  due  to  the  in  situ irreversible  hydrogenation  of  the  alkene  side  chain  to produce an open coordination site on the transition metal atom.
Patent CA-1184282-A (CA)
Title: Reseau de connexion numerique
Inventor: DUPUIS BERNARD
IPC: H04M3/00
Filed: 1982-04-02
Granted: 1985-03-19
Abstract: Réseau de connexion numérique dans un autocommutateur comportant un ensemble de commande à structure répartie et un réseau central auquel sont reliés, par des liaisons multiplex, des unités de terminaux comportant elles-mêmes des dispositifs de connexion des terminaux à ces liaisons, le réseau central étant divisé en plusieurs plans indépendants. Chaque plan est constitué de commuta teurs synchronisés équipés chacun d'un marqueur et formant un seul étage de commutation, les commutateurs étant reliés en parallèle aux liaisons entrantes du plan, et desservant chacun un groupe de liaisons sortantes.
Patent CA-1180059-A (CA)
Title: Digital shift register
Inventor: KASPERKOVITZ WOLFDIETRICH G
IPC: G11C19/28
Filed: 1982-06-10
Granted: 1984-12-27
Abstract: PHN 10.077              17 ABSTRACT:              In a digital shift register comprising a series of substantially identical bistable circuits a reference voltage required for said bistable circuits is obtained by coupling a reference point to the outputs of the bi-stable circuits via resistors, in such a way that the reference voltage is the mean of the output voltages of the bistable circuits.  Further, a method is described for the advanced presentation of information to the bi-stable circuits of the shift register via the reference circuit, so that the bistable circuits are changed over faster and the maximum clock frequency of the shift register is increased.
Patent CA-1209090-A (CA)
Inventor: ONO KIMIZO
IPC: G02B6/06
Filed: 1982-06-16
Granted: 1986-08-05
Abstract: ABSTRACT OF THE DISCLOSURE     A process for producing a fiber bundle is disclosed. The process comprises forming a bundle of a plurality of optical fibers produced from a glass material which substan-tially does not undergo any optical change  upon radiation, placing a glass material which is easily colored upon exposure to between the bundled optical fibers radiation, exposing the resulting fiber bundle to radiation to color the glass material between the optical fibers to form a colored light-absorbing section between the individual optical fibers bundled.
Patent CA-1194216-A (CA)
Inventor: RUPRECHT JUERGEN
IPC: H04N9/77
Filed: 1982-09-09
Granted: 1985-09-24
Abstract: ABSTRACT:             By means of a digital filter the chrominance signal is separated from the digitized picture signal and is applied to a variable-gain amplifier which is formed by the series arrangement of a shift stage and a multi-plier.  The two stages are controlled by a control cir-cuit which receives the maximum amplitude value of the colour synchronizing signal, obtained in a digital manner.     Depending on this amplitude value the position of the chrominance signal is shifted and thereafter multiplied in the multiplier by a factor of, for example, between 0.5 and 1.  Acting thus, the gain factor is split into two sub-factors, one of which is an integral power of 2 and in this way the multiplier is utilized in a much more advantageous manner.  The amplitude value of the colour synchronizing signal is measured before the amplifier, so that the control is a forward control, none of the pro-blems occuring at closed control loops now being present.
Patent CA-1199353-A (CA)
Inventor: HOLMBERG JOHN M
IPC: E21B17/043
Filed: 1982-09-20
Granted: 1986-01-14
Abstract: ABSTRACT      "CONNECTION OF DRILL TUBES"     The invention provides a method of joining two rigid tubes such as are used in drill stems wherein a nipple internal to the tubes is threaded and screws into at least one of the tubes, the nipple provided with a zone of reduced internal diameter which registers with a cavity in the internal bore of the tube and the zone of reduced internal diameter expanded outwards into contact with the tube to occupy the registering cavity in the tube and form a positive lock against tensile forces.
Patent CA-1189918-A (CA)
Inventor: KATAKURA MASAYUKI
IPC: G05F1/10
Filed: 1982-09-20
Granted: 1985-07-02
Abstract: ABSTRACT OF THE DISCLOSURE         A voltage controlled variable gain circuit suitable for construction as an integrated circuit includes a first current divider comprised of two NPN transistors; a second current divider comprised of two NPN transistors, a control voltage for setting the gain of the circuit being supplied to the bases of a transistor of each current divider; an operational amplifier for producing a first signal in response to an input current, and output currents from each current divider; first and second current sources, each producing a constant current; a first differential amplifier comprised of two NPN transistors having emitters supplied with the constant current from the first current source and the collector of one transistor supplying a drive current to the first current divider; and a second differential amplifier comprised of two NPN transistors having emitters supplied with the constant current from the second current source and the collector of one transistor supplying a drive current to the second current divider; the steady state currents through both first and second current dividers being controlled to a value less than one-half the value of the constant current from the first and second current sources, by constructing the emitter areas of the other transistors of each differential amplifier to be N times larger than the emitter areas of the one transistors thereof; or by supplying offset voltages to the bases of the transistors of both differential amplifiers; or by connecting the emitters of the two transistors of each differential amplifier with a resistive element.
Patent CA-1187640-A (CA)
Inventor: MUDD PATRICK J
IPC: C04B14/10
Filed: 1982-10-25
Granted: 1985-05-21
Abstract: ASBESTOS-FREE DRYWALL JOINT COMPOUND     UTILIZING SEPIOLITE CLAY AS     ASBESTOS SUBSTITUTE           ABSTRACT OF THE DISCLOSURE     Drywall joint compounds in which asbestos fiber has been omitted and the physical characteristics which have heretofore depended on the presence of asbestos fiber or on attapulgite clay have been obtained by the inclusion of finely powdered sepiolite clay.
Patent CA-1197736-A (CA)
Inventor: SPRINGER MANFRED
IPC: B63H5/16
Filed: 1982-10-27
Granted: 1985-12-10
Abstract: Abstract A guard for protection of an outboard motor is described.  The guard comprises a main rib with a shock absorbing end portion and a resilient rib which is secured to the main rib such that, when the guard is attached to an outboard motor which is mounted on a boat and which is submerged in water, the resilient rib is disposed forward of the end portion.  The forward rib and the end portion extend one behind the other in the direction of travel of the boat so that the forward rib imparts additional shock absorbing properties to the guard.  Further shock absorbing resilient ribs and arcuate funnelling bands to strengthen the guard may be secured to the main rib.
Patent CA-1221698-A (CA)
Title: N-arylsulfonyl-n'-pyrimidinyl and triazinylureas
Inventor: SHAPIRO RAFAEL
IPC: C07D239/42
Filed: 1982-12-02
Granted: 1987-05-12
Abstract: Title               BA-8462A N-ARLYSULFONYL-N'-PYRIMIDINYL AND TRIAZINYLUREAS            Abstract of the Disclosure Certain substituted pyrimidine sulfonylureas, such as 3-[[[(4-(dimethoxymethyl)-6-methylpyrimidin-2-yl]aminocarbonyl]aminosulfonyl]-2-thiophenecarboxylic acid, methyl ester, are selective pre-emergence and/or post-emergence herbicides.
Patent CA-1184980-A (CA)
Inventor: GIRARD HENRI
IPC: H03F1/32
Filed: 1982-12-14
Granted: 1985-04-02
Abstract: TITLE                  A BASEBAND LINEARIZER FOR WIDEBAND  HIGH POWER, NONLINEAR AMPLIFIERS  INVENTOR Henri Girard ABSTRACT OF THE DISCLOSURE The baseband linearizer attenuates the amplitude of the in-phase and quadrature phase components of the baseband signal as a function of the transfer characteristic of the high power amplifier and under the control of a baseband signal power level detector.  The phase angle of the attenuated signal is rotated as a function of the amplifier transfer characteristic, again under the control of the power level detector.
Patent CA-1202881-A (CA)
Inventor: FITCH JOHN L
IPC: E21B43/22
Filed: 1983-01-07
Granted: 1986-04-08
Abstract: SOLVENT FLOODING TO RECOVER VISCOUS OILS            Abstract Oi1 is recovered from a viscous oil-containing formation, including a tar sand deposit, by providing at least one injection well and at least one spaced-apart production well which extend downwardly from the earth's surface to the bottom of the formation and which at their lower portions extend generally horizontally through and in fluid communication with the formation.  A predetermined amount of solvent, preferably 0.05 to 0.30 pore volume,is injected into the bottom of the formation via the injection well and fluids including oil are recovered from the formation via the production well.  After  the desired amount Or solvent has been injected into the formation, production is terminated and both the injection well and production well are shut-in to allow the formation to undergo a soak period for a variable time, preferably for a time of between 2 to 20 days per foot of vertical thickness of the oil-containing formation.  During the soak period, there is substantial mixing of the heavy oil and the solvent in the formation by gravity-driven convection wherein the viscosity of the heavy oil is reduced, thereby making it easier to produce.  A driving fluid such as water is then injected into the formation via the injection well and oil of reduced viscosity is produced until there is an unfavorable amount of driving fluid, preferably at least 90 percent.
Patent CA-1198384-A (CA)
Inventor: KRUG CHARLES C
IPC: F16D43/20
Filed: 1983-01-21
Granted: 1985-12-24
Abstract: ABSTRACT   A drive train has a torque limiting coupling to prevent excessive torque from damaging the components.  The coupling has a rotary member with an inner web of resilient material.  The web has a central aperture with a plurality of sides for receiving a polygonal drive member.  Under normal torque, the drive member and rotary member rotate in unison.  The web has a plurality of slits extending from the aperture.  These slits enable the sides of the aperture to move outward for allowing relative movement between the drive member and the rotary member in case of excessive torque.
Patent CA-1190138-A (CA)
Inventor: BAUGH JOHN L
IPC: E21B33/068
Filed: 1983-01-26
Granted: 1985-07-09
Abstract: ABSTRACT OF THE DISCLOSURE      A ball dropping assembly is shown of the type which is connected in a string of pipe for dropping a ball in the pipe string.  A main body is mounted on the pipe.  The main body has all interior bore which communicates with the interior of the pipe.  A cam housing is received within the main body bore and has a ball receiving recess formed in the interior thereof.  A ball dropping can is rotatably received within the cam housing.  The can has partially cut-away sidewalls which form a camming surface for the ball.  A retaining nut engages and seals the cam housing and can within the body whereby rotation of the can with respect to the cam housing houses the camming surface to contact the ball to thereby eject the ball from the ball receiving recess into the interior of the pipe without opening the assembly to the atmosphere.
Patent CA-1185062-A (CA)
Inventor: MUNSEY HOWARD T
IPC: E04B1/10
Filed: 1983-02-11
Granted: 1985-04-09
Abstract: Abstract of the Disclosure A seal between superimposed wall forming members embodies a pair of spaced apart upstanding splines extending horizontally between adjacent wall forming members, with the upper portion of the splines telescoping into downwardly opening grooves in the lower surface of a superjacent wall forming member.  Laterally and outwardly opening recesses are provided in the upper surface of a subjacent wall forming member in position to receive the lower portions of the splines.  A sealant is applied between upper and lower portions of the splines and adjacent grooves and recesses, respectively, to form a seal therebetween.  Insulation material interposed between the splines provides additional insulation and seals between the wall forming members.
Patent CA-1180924-A (CA)
Inventor: INOUE MASAO
IPC: G03B21/625
Filed: 1983-02-17
Granted: 1985-01-15
Abstract: Abstract of the Disclosure:         A rear projection screen suitable for use as, for exmaple, a screen for video projector.  The rear projection screen is provided with a lenticulated surface at least one the viewer's side thereof.  The lenticulated surface is constituted by a plurality of lenticule units each having total reflection surfaces on both inclined flanks thereof and a plurality of curved surface portions between both inclined flanks.          The arrangement is such that a part of the light rays impinging from the projection side of the screen are reflected by the total reflection surfaces and then pass through the curved surface portions of each lenticule unit.  Another type of lens may be formed between each of the adjacent lenticule units.
Patent CA-1205740-A (CA)
Inventor: ELLISTON THOMAS L
IPC: E21B7/128
Filed: 1983-03-03
Granted: 1986-06-10
Abstract: ABSTRACT OF THE DISCLOSURE Motion compensating apparatus for maintaining a tension load on a marine riser supported from a floating platform which is subject to movement by wave action and the like. Bending movements induced by the roll and pitch of the vessel are decoupled by a resilient bearing member having an annular section of a substantially spherical laminated body of superposed layers of an elastic material and a relatively inelastic material. A tension load is applied to the riser by a hydraulic actuator which is supported by the resilient bearing member. The actuator includes a displacement compensating cylinder having an adjustable volume of hydraulic fluid presented to a piston in the cylinder for supporting the upper end of the marine riser. The displacement of fluid in the cylinder varies in response to the heave of the vessel to maintain a positive lifting force on the marine riser. An accumulator is connected in fluid communication with the pressure chamber of the hydraulic actuator for supplying hydraulic fluid to and for receiving hydraulic fluid from the pressure chamber in response to changes in its volume. Hydraulic fluid leakage past the actuator seals is monitored through a fluid circuit including pressure switches and leakage flow indicators.
Patent CA-1182791-A (CA)
Inventor: GRIEVE HAROLD R
IPC: B65D5/489
Filed: 1983-03-18
Granted: 1985-02-19
Abstract: MULTI-COMPARTMENTED DISPLAY CARTON                 ABSTRACT      An open top, multi-compartmented display carton for  the  displaying  and  dispensing  of  upstanding pouches, envelopes or packets, and which includes a mechanically  locking  bottom  wall  structure,  an apertured or windowed front wall, a back wall, two end  walls  and  at  least  one  partition  extending between the  front and back walls, with the entire carton  structure  being  folded  and  glued  from  a single fiberboard blank.  The bottom wall structure of the display carton includes four flaps which are hinged to the lower edges of four adjacent walls of the carton, and wherein at least three of the bottom flaps include tab structure adapted to interengage upon the flaps being superimposed when the carton is in a setup or assembled condition, and wherein the tabs  will  form  a  mechanical  locking  structured assisted  for retention  in  its locked condition by the  weight  of  the  packets  located  in  the carton compartments.  When the carton is collapsed into a flattened or knockeddown condition, the tabs on the bottom  flaps  will  disengage  to  thereby allow  the bottom  flaps  to  fold  down  flat  outwardly of  the carton.   Each carton partition  consists of a flap cut out from the material of the front wall and the upper  forward edge portion of an adjoining carton side wall  and  is  adapted  to be  folded  rearwardly into the carton so as to contact the interior sur-face of the carton back wall.  The free end of each partition contacting the back wall includes a flap adapted to be glued to the interior surface of the back wall so as to form a multi-compartmented struc-ture  within  the  display  carton.   A plurality of superimposed  filled  cartons  are  frequently  held together under a compressive load by a band or web of  an  encompassing  layer of a  transparent  shrink wrap or stretch wrap film.
Patent CA-1197663-A (CA)
Inventor: LALANCETTE JEAN-MARC
IPC: C01D5/08
Filed: 1983-03-21
Granted: 1985-12-10
Abstract: A B S T R A C T           There is provided an improved process for the preparation of potassium sulfate by the reaction of ammonium sulfate and potassium chloride wherein the improvement comprises reacting an ammonia enriched solution of ammonium sulfate with potassium chloride, the volume of the ammonia-enriched ammonium sulfate solution being such as to afford an economic recovery of ammonia for recycling purposes and a substantially quantitative precipitation of the potassium sulfate.
Patent CA-1193939-A (CA)
Inventor: REDMOND RUSSELL J
IPC: A61M25/02
Filed: 1983-04-12
Granted: 1985-09-24
Abstract: Abstract of the Disclosure Catheter Guide A catheter guide is provided which has a base having a first channel extending thereacross for receiving a catheter. An arcuately extending member extends outwardly from the base. A second channel extends along the arcuately extending member for also receiving a catheter. The first and second channels extending respectively across the base and along the arcuately extending member can be enclosed or partially enclosed for retaining a catheter within the channels and within the catheter guide.
Patent CA-1239755-A (CA)
Inventor: WALLSTEN HANS I
IPC: A61F2/01
Filed: 1983-04-29
Granted: 1988-08-02
Abstract: ABSTRACT.     A prosthesis for transluminal implantation comprising a flexible tubular body which has a diameter that is variable by axial movement of the ends of the body relative to each other and which is composed of several individual rigid but flexible thread elements each of which extends in helix configuration with the center line of the body as a common axis, a number of elements having the same direction of winding but being axially displaced relative to each other crossing a number of elements also axially displaced relative to each other but having the opposite direction of winding; and method for trans-luminal implantation.
Patent CA-1195942-A (CA)
Inventor: DEN OTTER JOHAN L
IPC: C10G1/06
Filed: 1983-05-04
Granted: 1985-10-29
Abstract: A b s t r a c t.      Coal is continuously fed into an extruder and reacts therein at elevated pressure and temperature and possibly in the presence of a catalyst with hydrogen and/or hydrogen containing compounds added to the contents of the extruder on at least one spot situated at a distance of at least three times the inner diameter of the ex-truder in front of the end of the screw. From the reaction product leaving the extruder hydrocarbons which are fluid under normal con-ditions are separated.     Part of these hydrocarbons which are liquid under normal con-ditions may be recycled to the extruder.