baber/WOPTO huggingface dataset:
Patent CA-1180176-A (CA)
Inventor: TEOT ARTHUR S
IPC: B65G53/04
Filed: 1982-10-29
Granted: 1985-01-02
Abstract: ABSTRACT OF THE DISCLOSURE         This invention is directed to a method for reducing friction exhibited by an aqueous liquid passing through a conduit under nonlaminar flow conditions and to aqueous liquid compositions having such reduced friction containing a viscoelastic surfactant and an organic electrolyte.  The method comprises passing through a conduit an aqueous liquid containing (1) a surfactant compound having a surfactant ion and (2) an organic electrolyte having a moiety that is capable of associating with the surfactant ion to form a viscoelastic surfactant, the viscoelastic surfactant being present in an amount sufficient to reduce the friction of the aqueous liquid as it passes through the conduit and the organic electrolyte being present in an amount sufficient to further reduce the friction exhibited by the aqueous liquid containing the viscoelastic surfactant as it passes through a con-duit under conditions of nonlaminar flow.  The aqueous liquid compositions are useful in district heating systems, drilling fluids, waste water systems and as a carrier in transporting coal slurries and other minerals.     28,258-F
Patent CA-1183801-A (CA)
Inventor: PORTER JOHN E
IPC: B01J19/18
Filed: 1982-11-24
Granted: 1985-03-12
Abstract: Abstract Centrifugal Device In a centrifugal mass transfer device comprising a rotary, annular permeable element, annular plates are mounted adjacent the radially inner or outer face of the permeable element and gaseous or liquid material flowing from the permeable element across one surface of the annular plates is cooled or heated by a heat exchange fluid on the opposite surface of the plates.   In this way condensed or vaporised material is returned to the permeable element.
Patent CA-1183947-A (CA)
Inventor: TAKAHASHI KENJI
IPC: G11B23/023
Filed: 1982-12-09
Granted: 1985-03-12
Abstract: ABSTRACT OF THE DISCLOSURE           A tape cassette case has a main wall, a cover wall, with peripheral walls which extend from each, and a hinge is formed from a back wall to connect the main wall to the cover wall.  A locking means provided and comprises a slider member slidably mounted onto a support member that forms part of one peripheral wall.  The locking means is biased away from the one peripheral wall in a direction perpendicular to the sliding direction of the slider member by coil springs and pins. There are two projecting members projecting from the other peripheral wall, so that when the case is closed, the slider member may be slid in one direction to engage with the projecting members, thereby locking the main wall and the cover wall together, when the slider member is moved in the opposite direction the slider member is disengaged from the projecting portions, thereby allowing the case to be opened.  The locking means is provided with projections and corresponding cut-outs so that the slider member may only be slid when it is pushed in against the force of the biasing springs.  Additional locking means are provided that comprise rectangular finger portions and corresponding apertures.  The outside surfaces of the main wall and the cover wall are provided with ridges and recesses, respect-ively, so that a plurality of tape cassette cases may be stacked.  Guide members are also provided for cooperating with the rails of a stacking frame to facilitate stacking and securing several cases together.
Patent CA-1159079-A (CA)
Inventor: WALSH DAVID A
IPC: C07C201/12
Filed: 1982-12-14
Granted: 1983-12-20
Abstract: ABSTRACT   2-(3-benzoyl-2-nitrophenyl)alkanedioic acid dialkyl ester inter-mediates in the preparation of the anti-inflammatory compounds are disclosed having the formula:                             wherein R1 is hydrogen or lower alkyl; X is hydrogen, halogen, lower alkyl, lower alkoxy, trifluoromethyl or nitro and n is 1-3 inclusive.
Patent CA-1190045-A (CA)
Inventor: FUNK JAMES E
IPC: C10L1/32
Filed: 1983-01-13
Granted: 1985-07-09
Abstract: ABSTRACT OF THE INVENTION      A stable slurry containing carbonaceous solid material (such as coal or coke) carrier liquid (such as water or oil), and dispersing agent is disclosed.  Also disclosed is a method of preparing the slurry by grinding a carbonaceous solid material at a high solids content of at least 60 volume percent to generate at least 5 weight percent of colloidal carbonaceous particles and mixing the carbonaceous solid material so ground with carrier liquid and dispersing agent until a slurry with specified properties is produced.  A method of stabilizing a carbonaceous solid material -- liquid slurry by adding to the slurry either fine carbonaceous solid material and/or dispersing agent and/or stabilizer is also dis-closed.
Patent CA-1204098-A (CA)
Inventor: SMITH RICHARD T
IPC: F16K5/20
Filed: 1983-04-20
Granted: 1986-05-06
Abstract: Abstract Of The Disclosure A valve seat for ball valves comprises a ring-shaped or annular body fabricated of sintered metal particles having interparticulate spaces which are substantially completely filled with graphite.  The seat is fabricated by pumping a dispersion of colloidal graphite in a liquid carrier through the matrix of a preformed ring-shaped sintered metal body, thereafter heating the body to drive off any portion of the liquid carrier which remains in the interparticulate spaces of the body, and then coining the body to collapse any voids which remain in the body and to mechanically bind into the body the graphite which has been trapped in said interparticulate spaces during the pumping step.
Patent CA-1195038-A (CA)
Title: Carboxylated latex
Inventor: MALLYA PRAKASH
IPC: C08F36/04
Filed: 1983-04-25
Granted: 1985-10-08
Abstract: CARBOXYLATED LATEX Abstract of the Disclosure A high solids latex of a functional monomer may be prepared by emulsion polymerization of the monomer charge to a specified overall conversion and then introducing an additional micelle forming surfactant or a unimodal seed latex and continuing the polymerization.
Patent CA-1221353-A (CA)
Inventor: MORALES ALFREDO
IPC: B01J23/85
Filed: 1983-05-09
Granted: 1987-05-05
Abstract: ABSTRACT         This invention relates to catalysts having simultaneous desulfurization and demetallization activity in treatment of heavy crudes and residues which approaches unity over a useful life in excess of 80 days; the catalyst comprises a porous alumina support and has a pore volume of about 0.5 to about 1.2 ml/g and an average pore diameter of about 150 to about 300 .ANG., the alumina support is impregnated with a Group VIB metal, for example molybdenum, in an amount of about 5 to about 30 percent of the catalyst weight expressed as metal oxide and a Group VIII metal in an amount of about 0.1 to 8 percent of the catalyst weight expressed as metal oxide.
Patent CA-1193238-A (CA)
Title: Catalyst based on gamma alumina, and its method of  preparation
Inventor: FORLANI ORFEO
IPC: C07C67/00
Filed: 1983-05-26
Granted: 1985-09-10
Abstract: CATALYST BASED ON GAMMA ALUMINA, AND ITS METHOD OF PREPARATION            Abstract Or the Disclosure A catalyst based on gamma alumina, constituted by gamma alumina stabilised by silica containing oxides of bivalent or trivalent metals chosen from those of Group II A and/or VIII and/or III B and/or lanthanides.       The catalyst is particularly active in isomerisation reactions.
Patent CA-1222758-A (CA)
Inventor: SHAPIRO RAFAEL
IPC: A01N47/36
Filed: 1983-05-31
Granted: 1987-06-09
Abstract: Title N'-PRYIMIDYLUREAS OR N'-TRIAZINYLUREAS      Abstract of the Disclosure Certain N-[(heterocyclic)aminocarbonyl]isothia-zolesulfonamides, such as methyl 4-[[(4-methoxy-6-methyl-pyrimidin-2-yl)aminocarbonyl]aminosulfonyl]-3-isothiazole-carboxylate, are useful as herbicides and/or plant growth regulants.
Patent CA-1195186-A (CA)
Inventor: DEAL STEPHEN M
IPC: E05D15/22
Filed: 1983-06-29
Granted: 1985-10-15
Abstract: TITLE              PIVOT SHOE FOR SASH BALANCE          ABSTRACT         A pivot shoe 10 has a bite spring 30 operated by a cam 40 for interlocking pivot shoe 10 with a jamb channel 15 to resist upward movement under the bias of a sash balance system when a sash 20 connected to pivot shoe  10  by  a  pivot  bar  22  is  pivoted  away  from vertical.  Pivot shoe 10 has a resin body 11 shaped to guide on the sides 16 of jamb channel 15 and cam 40 is pivotally housed within body 11 and slotted to receive pivot bar  22 so that cam 40 pivots with sash 20.  The jamb end of cam 40 is profiled, and bite spring 30 has a follower 32 engaging the cam profile 47.  Bite spring is mounted on the  jamb side of pivot shoe 10 and upwardly  inclined  toward the  jamb channel  bottom  17. When sash  20 pivots  from vertical,  cam 40 tilts bite spring  30  outward  so  that  its  upper  edge  bites  into channel  bottom  17  and  locks  pivot  shoe  10  against upward movement.
Patent CA-1226850-A (CA)
Inventor: KESSLER MILTON
IPC: B65D43/02
Filed: 1983-06-29
Granted: 1987-09-15
Abstract: PINCH CAP                          Abstract A pinch cap has a top wall with edge portions which form  a  circumferentially-extending  rim.   A  pair  of  spaced, D-shaped, finger-receiving wells open through the top wall.  The wells are formed by curved and straight side walls which depend from the top wall,  and by a pair of D-shaped bottom walls.         Locking formations are provided on the outer faces of the curved side walls for holding the cap in place in a container opening.          During  insertion  of  the  cap  into  a  container  opening,  the locking formations engage portions of the container located at spaced positions  around the  container opening and cause  the normal configuration of the cap to distort briefly as is needed to permit the locking formations to pass through the container opening.   Removal  of  the  cap  from the  container  opening  is effected by pinching the flat side walls toward each other to distort the normal  configuration of the  cap  sufficiently  to release the locking formations from retaining engagement with the container, thereafter the cap is lifted out of the container opening.  Venting grooves may be provided in the curved side walls and in the underside of the rim to permit the escape of gases through the container opening.
Patent CA-1227872-A (CA)
Inventor: ROBINSON ROBERT J
IPC: H03K7/06
Filed: 1983-09-23
Granted: 1987-10-06
Abstract: Apparatus  for  converting  analog-format  signals  to pulse-format signals Abstract:    Apparatus for converting an analog-format electri-cal signal or quantity  (such as the magnitude of an electrical circuit element) into a corresponding pulse-format signal,  preferably in the form of a train of periodic pulses the lengths of which are controllable as a percentage of the cyclic period.  A pulsed duty cycle signal is developed in a negative feedback loop around  an  integrator  having  an  analog-format  input signal.  The integrator output controls the d-c level of an up-and-down ramp signal which is fed to a compar-ator to produce pulses during the times the ramp volt-age is above (or below) the firing threshold of the comparator.  These pulses control a switch between the integrator input and a reference voltage so as to pro-duce a negative  feedback signal  for the integrator. the negative feedback action controls the d-c level at the integrator output and thereby sets the pulse duty-cycle to a value such that the average signal level through the pulsed switch to the integrator input re-lates in prescribed fashion to the applied input sig-nal.   The duty-cycle  signal  developed  through  such feedback action corresponds directly to the magnitude of the applied input signal.
Patent CA-1250386-A (CA)
Inventor: VOGDES CHRISTINE E
IPC: C08K3/22
Filed: 1983-10-28
Granted: 1989-02-21
Abstract: ABSTRACT            Title         "Polyamide Compositions"      The high temperature aging of polyamides is substantially improved by incorporating therein an anti-oxidant and an oxide of a metal of Group II or III of the Periodic Table, preferably a synthetic zeolite.  The total amount of antioxidant and metal oxide is at least 1%, preferably 1 to 5%, and the amount of metal oxide is prefer-ably 0.5 to 5%,  Polyamides which can be stabilized in this way include Nylon-6*, Nylon-11* and Nylon-12*.            * Trade Mark
Patent CA-1217466-A (CA)
Inventor: BURTON PHILIP J
IPC: F16K5/06
Filed: 1983-11-14
Granted: 1987-02-03
Abstract: ABSTRACT OF THE DISCLOSURE           In order to provide an unobstructed outer face on a retaining ring for the seal assembly of a butterfly valve, so that the face can make an improved seal with an adjacent pipe end, the retaining ring is held captive in the valve housing by a wire ring, instead of by the usual screws which penetrate the face and inhibit sealing with the pipe end. The wire ring is of regular polygonal shape such that the central portions of its sides are received in a radially outwardly facing groove in the retaining ring, and its corners are received in a radially inwardly facing groove in the housing.  A helical lead-in groove in the housing connects with the groove to permit assembly of the retaining ring to the housing by a screwing action.
Patent CA-1211333-A (CA)
Inventor: WHITED ROBERT E
IPC: A61M16/04
Filed: 1983-11-18
Granted: 1986-09-16
Abstract: IMPROVED ENDOTRACHEAL TUBE        Abstract An endotracheal device comprises an air tube adapted to be inserted through the oral or nasal passage and into the trachea to provide an air passage for respirating a patient.        The air tube includes an inflatable cuff mounted at the distal end, and a membrane containing a cushioning material disposed along the air tube adjacent the cuff in a position to prevent direct contact between the air tube and the cricoarytenoid joint and its surrounding tissues.
Patent CA-1205378-A (CA)
Inventor: MOUNT HOUSTON B II
IPC: E21B49/06
Filed: 1983-11-21
Granted: 1986-06-03
Abstract: ABSTRACT A hydraulic control system for a downhole side-wall coring tool having first and second power hydraulic systems in which changes in pressure drop in a portion of the first hydraulic system adjusts a control valve to change the pressure in a part of the second hydraulic system.  Means are provided to adjust the operation of the control valve as a function of viscosity change in the hydraulic fluid caused by change in ambient temperature.
Patent CA-1246817-A (CA)
Inventor: KISHIMA NOBORU
IPC: C08J9/28
Filed: 1984-01-09
Granted: 1988-12-20
Abstract: TITLE OF THE INVENTION          ABSTRACT OF THE DISCLOSURE     Disclosed  is a method of producing a porous material having open pores, comprising the steps of preparing a slurry from a mixture comprising a bisphenol-type epoxy resin,  a specific mixture amide compound as a hardener, a filler and water,  casting  the  slurry  in  a  water-impermeable  mold, hardening  the  slurry  while  it  contains  the  water  and dehydrating the hardened body.
Patent CA-1206054-A (CA)
Inventor: SEXSTONE JOHN H
IPC: A24D3/02
Filed: 1984-02-01
Granted: 1986-06-17
Abstract: UNITED STATES PATENT APPLICATION                           OF                    JOHN H. SEXSTONE                    EVERETT N. FINN              BYRON L. LOWE                            AND                     KEN M. MILLINER                           FOR                APPARATUS FOR MAKING GROOVES IN                      CIGARETTE FILTERS                     ABSTRACT OF THE DISCLOSURE     An apparatus for, in one advantageous embodiment, concurrently forming a plurality of generally longitudinally extending grooves in a filter rod, and in another advantageous embodiment, for making small apertures in the grooves as,  the grooves are being formed in the filter rod.  The apparatus includes a reciprocating die having an upper die block and a lower die block.    Each die block includes protruding, elongated projections which are adapted to be imbedded into the filter rod upon closing of the die to impress grooves in the filter rod located in the die.  In the embodiment wherein apertures are to be formed in the grooves, aperture forming punches are associated with each of the groove forming projections for punching apertures in the grooves as they are being formed.  The apparatus further includes a hopper for storing a plurality of filter rods to be grooved, a dispenser device for receiving ungrooved filter rods from the hopper and distributing the ungrooved filter rods in a proper orientation to the die, a feed guide device for transferring the ungrooved filter rods in an aligned manner from the dispenser device to the die, and an exit guide device downstream of the die for transferring grooved filter rods away from the die in an orderly manner so as not to cause a jam.
Patent CA-1254068-A (CA)
Title: Plastics material expansion dowel with wave-form  slots
Inventor: LANG GUSZTAV
IPC: F16B13/12
Filed: 1984-03-08
Granted: 1989-05-16
Abstract: ABSTRACT OF THE DISCLOSURE          A plastics material expansion dowel has an axially extending dowel body with a central hole extending in its axial direction and with wave-form slots also extending in the axial direction and opening into the central hole.  The wave-form slots have alternating crests and troughs.  The width being greatest at the top of the crests and the bottom of the troughs and being least at the transition between the crests and the troughs.  A spreading screw can be inserted into the central hole for effecting the expansion of the dowel body.  The number of wave crests exceeds the number of wave troughs in the screw-in direction of the spreading screw by one.  Further, the outside surface of the dowel body has axially spaced groove-like recesses extending in the circumferential direction for affording surface profiling.
Patent CA-1226002-A (CA)
Inventor: FRANK PETER J
IPC: C07C57/04
Filed: 1984-04-19
Granted: 1987-08-25
Abstract: ABSTRACT OF THE DISCLOSURE         In the recovery and purification of methacrylic acid produced by the vapor phase catalytic oxydehydrogena-tion of isobutyric acid the problem of downstream plugging is avoided by the inclusion of a small amount of surfactant in the gaseous effluent at or near the point of its conden-sation.
Patent CA-1210951-A (CA)
Inventor: HARMS ORVILLE L
IPC: E05C21/02
Filed: 1984-05-10
Granted: 1986-09-09
Abstract: APPARATUS AND METHOD FOR LOCKING DOORS                          ABSTRACT      A locking means for locking the rear doors of a truck trailer in closed position while providing suit-able resistance to unauthorized entry.  First and second pipes are mounted in an aligned relationship on the rear doors of a truck trailer and a third pipe is inserted into the first and second pipes.  A hollow elongated body covers a depending segment secured to the third pipe and locking means are attached to the segment.  The third pipe has a non-connected pipe housed therein which pipe is readily rotatable and functions to prevent the complete sawing of the third pipe.
Patent CA-1224254-A (CA)
Inventor: BONNET MADELEINE
IPC: H04B3/23
Filed: 1984-05-25
Granted: 1987-07-14
Abstract: PCT No. PCT/FR84/00140 Sec. 371 Date Jan. 28, 1985 Sec. 102(e) Date Jan. 28, 1985 PCT Filed May 25, 1984 PCT Pub. No. WO84/04858 PCT Pub. Date Dec. 6, 1984.An adaptive echo suppressor is provided at each local station in a data transmission system for transmission of local data from a local station to a remote station over a transmission medium exhibiting an echo and simultaneous transmission of far end data over said medium from said remote station. The echo suppressor comprises an adaptive echo suppressor located at said local station and comprising: an adaptive digital filter connected to receive the local data ax and a clean signal ek substantially free of echo and arranged to deliver on an output an estimation ok of the echo of the local data by multiplying a vector of coefficients Ck with the local data ak, said vector having an adaptation algorithm: Ck+1=Ck+ mu ak*xf(ek) wherein  mu  is a predetermined incrementation step, ak* is a conjugated value of the local data ak, and f is a predetermined function of ek and substractor means having an input connected to receive said far end data signal from said transmission medium, said far end data signal including said far end data and the echo of the local data and a subtractive input connected to receive said estimation ok from said digital filter. The digital filter is rendered only responsive to that vectorial component of ek which is orthogonal to the remote data signal.
Patent CA-1221401-A (CA)
Inventor: LEVY ALEXANDER H
IPC: C25B1/00
Filed: 1984-06-01
Granted: 1987-05-05
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus for carrying out an electrochem-ical process includes an electrochemical electrolysis cell which uses input electrical power at a first voltage and a first current to produce a chemical pro-duct and hydrogen.  At least one fuel cell, which utilizes hydrogen, produces output electrical power at a second voltage and a second current.  A regulator supplies the hydrogen produced by the electrolysis cell to the fuel cell for consumption of at least a portion of the hydrogen by the fuel cell.  The power produced by the fuel cell supplies output power receiv-ed from the fuel cell as input power at the first voltage to the electrochemical cell.  The fuel cell is connected to the electrochemical cell through a gated switch for regulating the electrical power received from the fuel cell to adjust the current and voltage supplied by the fuel cell so that the voltage change across said regulator is equal to the difference between the first voltage and the second voltage.
Patent CA-1230396-A (CA)
Inventor: KITTEL LUDWIG
IPC: H04L7/04
Filed: 1984-06-07
Granted: 1987-12-15
Abstract: ABSTRACT:           In a data transmission system data, more spec-ifically messages can be transmitted in the form of sequentially linked modified code words of a linear block code.  The modified code words are obtained by combining the code words formed from the data with a protection word. When modified code words are interleaved bit-wise the sequence of code words of a message can be changed after de-interleaving at the receiver end, by bit shift.  So as to make it possible to recognize faulty synchronization, each code word is linked to a protection word which char-acterized its position within the message.  The modified code words thus obtained are interleaved bit-wise, trans-mitted and de-interleaved again and each word thus obtained is combined at the receiver end with a check word charac-terizing its position within the message.  The protection words and the check words are chosen such, that the key words obtained by combining the protection words and the check words are preferably located in sub-classes which are not used for decoding.
Patent CA-1253281-A (CA)
Inventor: HAAF WILLIAM R
IPC: C08L51/02
Filed: 1984-06-08
Granted: 1989-04-25
Abstract: POLYPHENYLENE ETHER RESIN COMPOSITIONS CONTAINING HALOGENATED AROMATIC COMPOUND    ALONE AS A FLAME RETARDANT AGENT    ABSTRACT OF THE DISCLOSURE Flame retardant compositions comprising admixtures of polyphenylene ether resin, a polyalkenyl aromatic and, as the sole flame retardant agent, a halogenated aromatic compound or mixture of such compounds, are described.  These provide decided advantages over corresponding flame retardant compositions containing synergistic agents and/or aromatic phosphate flame retardants, alone, or in combination with halogenated aromatics.  They are useful for shaping into a wide variety of articles for industrial or household purposes.