baber/WOPTO huggingface dataset:
Patent CA-1111840-A (CA)
Inventor: STINE ROBERT E
IPC: F28F9/00
Filed: 1980-07-18
Granted: 1981-11-03
Abstract: Abstract of the Disclosure A corrosion resistant weldment heat exchanger for exchanging heat between fluids including a tube bundle having spaced tubes of flattened cross section between generally elliptical ends of corrosion resistant metal that is either copper, aluminum) brass or stainless steel and through which tubes one of the fluids flows and over the outer surface of which tubes a second fluid flows for exchange of heat between the fluids through the walls of the tubes. Headers are provided at opposite ends of the tube bundle also of the corrosion resistant metal and into which headers the ends of the tubes extend in close fitting fluid flow relationship and the tube ends and the portions of the headers receiving the tube ends being of elliptical configuration to provide an elliptically shaped joint. The tube ends and the headers are joined at the elliptical joint.  The config-urations by welds consisting substantially only of the metal of the tube ends and headers previously heated without the use of an added welding metal to a molten state by an inert gas-shielded electric arc in order to protect the welds from contamination during their formation.
Patent CA-1155301-A (CA)
Inventor: CHAIKEN ROBERT F
IPC: C10J3/00
Filed: 1980-07-24
Granted: 1983-10-18
Abstract: Abstract A method is provided for recovering energy from wasted coal by the steps of creating at least one channel through the wasted coal, igniting the wasted coal in said channel, subjecting said wasted coal, at least at said channel, to a negative pressure applied at a preselected point, connecting said wasted coal, at least at said channel, to a source of air remote from said preselected point whereby air is induced through said ignited coal to burn said coal to produce hot gaseous products of combustion and the hot gaseous products of combustion are drawn to said point, and utilizing said hot gaseous products of combustion in a heat exchange relationship to recover the heat energy therefrom.
Patent CA-1157611-A (CA)
Inventor: AOKI KATASHI
IPC: B29C65/00
Filed: 1980-08-21
Granted: 1983-11-29
Abstract: Abstract of the Disclosure A process for injection stretching and blow molding a hollow molded product involves injection molding a two-layer parison with a bottom, one layer consists of a readily stretchable, blow moldable resin and the other layer consists of a resin which is hard to stretch and blow mold; adjusting the thermal distortion temperature of the resin which is hard to stretch and blow mold to a temperature ranging in the thermal distortion temperature of the readily stretchable, blow moldable resin; and stretching the two layers of the parison with a bottom and at the same time blowing air into the parison with a bottom.
Patent CA-1150832-A (CA)
Inventor: SAITO ETSURO
IPC: G11B5/588
Filed: 1980-10-09
Granted: 1983-07-26
Abstract: ABSTRACT OF THE DISCLOSURE             A transducer head assembly for a video tape machine capable of supporting the magnetic head so that it can be moved transversely to the tape so that the head will be aligned with the magnetic signal track for different speeds and direction of movement of the tape as well as for situations when the tape is stopped.  A pair of flexible supporting means are generally triangular shaped and have their rear edges attached to opposite sides of a supporting block and have their free ends connected to a connecting bar upon which the magnetic head is mounted.  A coil is attached to the connecting bar and moves between one or more magnets such that when electrical signals are applied to the coil the connecting bar is moved to align the magnetic head.          The spacing between the two flexible members is substantial so that a pantograph is formed which assures that the magnetic head moves substantially parallel to the surface of the tape and does not move in an arc.
Patent CA-1141355-A (CA)
Inventor: SALLER STEPHEN W
IPC: D07B7/06
Filed: 1980-10-17
Granted: 1983-02-15
Abstract: ABSTRACT     A fluid operated pintle assembly for rotatively supporting a reel where clearance is provided between the walls of a pintle carrying piston and its cylinder and an annular diaphragm extends across the piston and cylinder in sealing engagement and extends down into the clearance.
Patent CA-1151137-A (CA)
Inventor: SHAW WILFRID G
IPC: B01J27/28
Filed: 1980-11-12
Granted: 1983-08-02
Abstract: Abstract of the Disclosure The present invention relates to s method for maintaining and improving the activity of PMA based cata-lysts during reactor shutdown by flushing the reactor with an oxide of nitrogen gas at a temperature of from about 150° C to about 370° C.  The method can be employed in the reactor by terminating the feed of hydrocarbon to the reactor and then flushing the reactor.  The method can be employed to treat PMA based catalysts having the general formula MoxPyAaBbCcDcEcOz wherein A is selected from the group consisting of ammonium, cesium, potassium, rubidium and thallium; B is selected from the group consisting of copper and vanadium; C is selected from the group consisting of antimony, arsenic, bismuth and tellurium; D is palladium; E is aluminum, barium, calcium, cerium, chromium, cobalt, iron, magnesium, manganese, nickel, tantalum, titanium, tungsten, zinc, zirconium, chlorine and/or bromine; x can be 6 to 14; y can be 0.1 to 15; a can be 0.1 to 3; b can be 0.1 to 3; c can be 0 to 2; d can be 0 to 2; e can be 0 to 4 and z is a number necessary to satisfy the other elements.
Patent CA-1141656-A (CA)
Inventor: FREDD JOHN V
IPC: E21B34/10
Filed: 1980-11-14
Granted: 1983-02-22
Abstract: APPARATUS FOR AND METHOD OF OPERATING A WELL            Abstract of the Disclosure Apparatus and system for testing and producing a well in which the well is controlled adjacent the producing formation and may be shut-in or permitted to flow at the discretion of the operator.  The well may be tested under flowing or shut-in conditions and after testing is completed the tubing may be hung off in the well with the well shut-in adjacent the producing formation.
Patent CA-1148238-A (CA)
Inventor: PROMIS GEORGE G
IPC: G03G15/04
Filed: 1980-11-17
Granted: 1983-06-14
Abstract: MOTOR DRIVING SYSTEM                 Abstract of the Disclosure A motor driving system which is particularly useful for driving scanning carriages in a continuously variable reducing electrophotographic copier.  The motor driving system produces one of a number of different controlled and repeatable position acceleration and velocity pro-files of the scanning carriage with respect to motion of the copier drum; a different position acceleration and velocity profile is produced for each reduction mode in a substantially continuous range of reduction modes. The motor driving arrangement includes a single control loop for driving a servo motor which provides the drive for the scanning carriage.  A driving signal source produces a driving signal pulse train, each pulse representing a desired increment of motor travel, and a direction signal representative of the desired direc-tion of travel.  A tachometer is responsive to servo motor motion and produces an output signal representa-tive of the direction of motion; the output signal in-cludes a series of tachometer pulses, each pulse representing a given increment of servo motor movement. A logic circuit couples the output of the tachometer, the driving signal pulse train and the direction signal to an up/down counter which is stepped in one direction for each driving signal pulse, and which is also stepped in another or one direction, respectively, for each tachometer pulse which represents a direction which is the same as or different from the direction of the direc-tion signal.  The output of the up/down counter, con-verted to analog form, provides an input signal to drive the servo motor.  In order to control the acceleration, velocity and position profiles of the scanning carriage, the driving signal source produces a train of output pulses whose repetition rate is precisely controlled in relation to the motion of the drum.  The driving signal source includes a counter which produces a pulse output each time a predetermined count is reached, the counter is stepped at a rate related to the velocity of the drum, and the repetition rate of the output pulses is controlled by providing a sequence of quantities, from a storage matrix, to alter the modulus of the counter in a predetermined pattern.
Patent CA-1144107-A (CA)
Inventor: KNOX KENNETH H
IPC: B65D55/06
Filed: 1981-01-07
Granted: 1983-04-05
Abstract: NEH:em #3741 TAMPERPROOF PORT COVER          Abstract of the Disclosure A tamper resistant cover for the port of a con-tainer for medical liquids which when applied to the port indicates that an additive material has been introduced into the container.  The port cover is easily molded from a resinous plastic material and includes latch portions which fit into a latch bar with the latch bar serving as a means to prevent access with the latch portions so as to result in a tamper-resistant structure.  Preferably, the latch portions are in the form of barbed sections and are guided by means of an inclined ramp into latch open-ings in such a manner that a compression fit is provided so that after the barbed sections are forced through the latch openings the barbed sections will expand to engage latch surfaces in the latching bar.
Patent CA-1142277-A (CA)
Title: X-ray target monitor
Inventor: HOLLAND WILLIAM P
IPC: H05G1/26
Filed: 1981-01-28
Granted: 1983-03-01
Abstract: X-RAY TARGET MONITOR                 Abstract of the Disclosure A source of x-rays encompassing a rotating target is provided with a detector of x-rays located outside a port of a housing of the source and positioned at or near a tangent line to the radiating surface for observing variations in the radiation intensity due to rotation of the target, the varia-tions being pronounced due to the heel effect of the radiation pattern.  In one embodiment, the x-ray detector employs a scin-tillation material and is coupled by a light pipe to a photo-detector which is removed from the path of the radiation and detects scintillations of the x-ray detector.  Alternatively, the photodetector and light pipe may be deleted by the use of a detector of germanium, silicon or an ion chamber which con-verts x-ray photons directly to an electric current.
Patent CA-1180313-A (CA)
Inventor: CHU CHIN C
IPC: C07C15/08
Filed: 1981-02-23
Granted: 1985-01-02
Abstract: ABSTRACT A  process for the conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer.  The reaction is carried out in the presence of a particular type of zeolite catalyst having a silica to alumina mole ratio of at least 12 and a constraint index of about 1-12, said catalyst having been modified by treatment with compounds of Group IV A (Ti, Zr, Hf), and optionally phosphorus, to deposit a minor proportion of such elements on the zeolite.
Patent CA-1152068-A (CA)
Inventor: HOZUMI MOTOO
IPC: C07F9/09
Filed: 1981-02-26
Granted: 1983-08-16
Abstract: Abstract of the Disclosure New carbamic acid esters, inclusive of salts thereof, which have the formula:                          (I) wherein n is zero or 1; R1 and R2 independently represent -H, -OCH3 or -OCONHR6 in which R6 is C8-26 aliphatic hydrocarbon residue provided that at least one of R1 and R2 is -OCONHR6; and R3, R4 and R5 independently represent hydrogen or lower alkyl, or   represents cyclic ammonio, exhibit inhibitory activity to multiplication of tumor cells and antimicrobial activity.
Patent CA-1140791-A (CA)
Title: Photographic emulsions including as nucleating  agent a heterocyclic compound with arylamino  vinylene or aryl oxy vinylene substituents
Inventor: BARALLE ROGER M
IPC: G03C8/10
Filed: 1981-04-01
Granted: 1983-02-08
Abstract: Abstract of the Disclosure Silver halide emulsions are disclosed containing silver halide grains capable of forming an internal latent image.  incorporated in the emulsions as a nucleating agent is a heterocyclic compound having an arylaminovinyl-ene or aryloxyvinylene substituent, thereby permitting a direct-positive image to be formed on imagewise exposure and photographic processing.
Patent CA-1145166-A (CA)
Inventor: KONDO KAZUYOSHI
IPC: B21K1/30
Filed: 1981-05-21
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE      A disc-like or annular workpiece within a set of closed dies undergoes lateral flow in a first direction (e.g., radially outward or inward, depending upon the geometry of the die cavity) as the upper die is forced against the lower, with the workpiece being now restrained from flowing in other directions.  Toward the end of forging, when the metal offers a rapid in-crease in resistance to flowing, the workpiece is set free of the restraint from flowing in a second direction, generally opposite to the first direction, as by creat-ing a bore centrally therein or by cutting off its peripheral portion.  Then, upon resumption of forging, the workpiece flows in both first and second directions, completing the desired flow in the first direction with no greater forging force than before.    This method is particularly well suited for the production of spur gears, internal gears, or like articles.
Patent CA-1160286-A (CA)
Inventor: BLACK ROBERT A JR
IPC: H03K17/78
Filed: 1981-08-13
Granted: 1984-01-10
Abstract: ABSTRACT OF THE DISCLOSURE A fail safe type of monitoring circuit for contacts is provided using an opto-isolator.  The opto-isolator is energized in response to the operation of the contacts to clearly indicate whether the contacts are open or closed, and whether the circuit components are functioning in a valid manner.
Patent CA-1183220-A (CA)
Inventor: STRUVEN WARREN C
IPC: H04B1/26
Filed: 1981-09-04
Granted: 1985-02-26
Abstract: ABSTRACT OF THE DISCLOSURE          A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other.  Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed there-in with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31).  Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between tile transmission line (30), (31).  Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.
Patent CA-1178191-A (CA)
Inventor: MAEHARA NAOYOSHI
IPC: F23D11/34
Filed: 1981-10-05
Granted: 1984-11-20
Abstract: ABSTRACT OF THE DISCLOSURE        An apparatus for atomizing a large quantity of liquid such as water, liquid fuels, lotions or the like comprises an atomizer including a body having a pressurization cavity for containing a liquid, a nozzle base mounted on the body and having a plurality of orifices communicating with the pressurization cavity, an electric vibrator mounted on the body, and an electric circuit means for applying an alternating voltage to the electric vibrator to vibrate the latter back and forth, for thereby expelling a large quantity of liquid droplets of small and uniform diameter successively out of the orifices.
Patent CA-1170802-A (CA)
Inventor: DEUBEL REINHOLD
IPC: C09B67/00
Filed: 1981-10-20
Granted: 1984-07-17
Abstract: ABSTRACT OF THE DISCLOSURE:    Easily dispersible dust-free pigment granules of high tinctorial strength are obtained by adding to the aqueous suspension of a finely divided pigment an alkaline solu-tion of a natural or synthetic resin or of a resin mix-ture, thereafter acidifying the mixture, subjecting it to a flush process while stirring and increasing the tempera-ture above the softening point Or the resin and isolating the granules obtained.  The granules are particularly sui-table for preparing printing inks, which are distinguished by a very high tinctorial strength, a good transparency and a low viscosity.
Patent CA-1148680-A (CA)
Inventor: LESLIE JOHN P
IPC: C08K5/20
Filed: 1981-10-26
Granted: 1983-06-21
Abstract: Abstract of the Disclosure A composition and method for improving the thermoplastic processing characteristics of poly(ethylene terephthalate) (PET) in amorphous form are disclosed, as well as PET with improved melt strength.  The composition comprises (A) a polyanhydride selected from the group consisting of pyromellitic dianhydride, mellitic trianhydride, tetrahydrofuran dianhydride, and polyanhydrides containing at least two unsubstituted or substituted phthalic anhydride radicals; and (B) a fatty acid or N-substituted fatty acid amide having at least 10 carbon atoms in the acid portion of the molecule.  The polyanhydride is present in the com-position in an amount of from 0.1% to 3% by weight, based on the PET.
Patent CA-1172629-A (CA)
Inventor: BAILEY JOSEPH
IPC: G03C8/10
Filed: 1981-11-18
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE Photographic elements and diffusion trans-fer assemblages are described which employ a nondif-fusible compound having a releasable azo dye moiety or precursor thereof having the following formula:                wherein:   (a)  each Z and Z1 represents the atoms neces-sary to complete an aromatic carbocylic or heterocyclic nucleus having at least one ring of 5 to 7 atoms; each Z' having, in a position adjacent to the point  of attach-ment to the azo linkage, either (i) a ni-trogen atom in the ring of the nucleus which acts as a chelating site, or (Ii) n carbon atom in the ring of the nucleus hav-ing directly attached thereto n nitrogen atom which acts as a chelating site; (b)  G is a metal chelatlng group;  (c)  each CAR is a ballasted carrier moiety; (d)  Me is a polyvalent, hexacoordinate metal ion; and (e)  each n is 0 or 1, with the proviso that at least one n is 1.
Patent CA-1162134-A (CA)
Inventor: SMITH GRAHAME N W
IPC: B29C67/00
Filed: 1981-12-02
Granted: 1984-02-14
Abstract: Abstract of the Disclosure An improved pneumatic tire and improved method for building same on a high crown building drum.          The lower bead portion of the tire is provided with an additional  reinforcing ply structure 22 which is wrapped about a substantially inextensible bead wire 25. An improved method of building a tire on a high crown building drum wherein the additional rein-forcing ply structure in the bead area is placed in tension during vulcanization.
Patent CA-1166385-A (CA)
Inventor: BINSACK RUDOLF
IPC: C08G63/181
Filed: 1981-12-17
Granted: 1984-04-24
Abstract: Thermoplastic block copolyesters, a process for the preparation thereof and their use for the production of mouldings ================================================================     Abstract of the Disclosure:            Block copolyesters based on polyalkylene terephthalates which contain polydiene blocks show an extremely low deformation even when they are processed into thin articles. They still have a crystallinity which is decreased by less than the ratio corres-ponding to the polydiene portion.
Patent CA-1174166-A (CA)
Inventor: LIU YEN-PING
IPC: G01N33/542
Filed: 1981-12-21
Granted: 1984-09-11
Abstract: ABSTRACT OF THE DISCLOSURE       Assays are provided employing particles and absorbent particles, wherein the absorbent particles substan-tially inhibit fluorescence when bound to the fluorescent particles through specific non-covalent binding.
Patent CA-1168376-A (CA)
Inventor: ACKLAND BRYAN D
IPC: G11C11/34
Filed: 1982-01-13
Granted: 1984-05-29
Abstract: RANDOM ACCESS MEMORY SYSTEM HAVING               HIGH-SPEED SERIAL DATA PATHS     Abstract To substantially increase the bandwidth of a random access memory (RAM), a shift register is disposed within the memory array such that the shift register lies parallel to the word lines and is connected to at least individual ones of the bit lines contained within the array.  Separate high-speed serial input and output lines are provided by the shift register.  These lines are in addition to and operate independently of the slower speed input and output lines normally provided by the RAM. Through this arrangement, a row of data can be transferred to and from the memory array at a rate substantially faster than the single-bit access rate of the RAM.
Patent CA-1178444-A (CA)
Inventor: TACK ROBERT D
IPC: C10L1/192
Filed: 1982-03-26
Granted: 1984-11-27
Abstract: ABSTRACT Polyoxyalkylene esters, ethers, ester/ethers or mixtures thereof containing two C10-C30 linear saturated alkyl groups and a polyoxy (C1-C4) alkylene glycol group of molecular weight 200 to 5,000 have been found to be effective distillate fuel flow improvers, especially for narrow boiling distillates hitherto difficult to treat, they may also be used in combination with conventional additives such as ethylene/unsaturated ester copolymers and nitrogen compounds such as diamides or amide/amine salts, ester/amides of dicarboxylic acids.
Patent CA-1185263-A (CA)
Title: Procede de production de dithioacides organiques et  leur application
Inventor: DETIENNE JEAN-LOUIS
IPC: C07C327/18
Filed: 1982-04-14
Granted: 1985-04-09
Abstract: Procédé pour la préparation d'un acide organique bithioïque, par réaction du bithioester correspondant et d'un sulfydrate de métal alcalin ou alcalino-terreux au sein d'un solvant en présence d'un excès d'H2S et traitement par un acide minéral. Les acides bithioïques ainsi obtenus peuvent être utilisés comme collecteur de la flottation des minerais.
Patent CA-1179607-A (CA)
Inventor: KELL MICHAEL J
IPC: A61M1/14
Filed: 1982-05-14
Granted: 1984-12-18
Abstract: ABSTRACT OF THE INVENTION     The  invention  provides  an artificial  kidney  extra-corporeal  circuit  assembly including  an  artificial  kidney having detachably attached multifunctional subassembly means for automatically venting gas bubbles  from liquid  flowing therethrough,  for continuously sensing the liquid pressure of and for filtering said liquid, together with blood tubes for connecting  a  patient's  artery  to the kidney  and  the subassembly outlet port to a patient's vein.     The subassembly includes means associated with a hydro-phobic  gas  bubble  vent  which  prevent  clogging,  minimize blood clotting and insure against ambient gas entry through the vent.
Patent CA-1196967-A (CA)
Inventor: CROW JAMES
IPC: H02H9/02
Filed: 1982-06-25
Granted: 1985-11-19
Abstract: ELECTROSURGERY LEAKAGE CANCELLING APPARATUS                   ABSTRACT OF THE DISCLOSURE            Leakage cancelling apparatus suitable for use in electrosurgery apparatus to prevent electrical burns is disclosed.  The apparatus comprises a transformer which is connected in the electrical circuit between the electrosurgical source and the patient.  The transformer has a primary winding connected in series with the active surgical electrode and a secondary winding connected in series with the return path to the electrosurgical generator.  The connections to the windings are polarized so that during normal operation the magnetic fields in the transformer core generated by current flow are almost completely cancelled.  Consequently, the transformer windings present very small impedances in series with the electrosurgical circuit.  If a break occurs in the return leak of the electrosurgical circuit and the patient becomes ungrounded, a condition which would normally result in a high risk of a burn, the currents in the primary and secondary windings of the transformer become unequal, the magnetic fields in the transformer core do not cancel and the transformer windings present a significant impedance to the flow of electrosurgical current which reduces the occurence of electrosurgical burns.  In addition, the uncanceled inductance presented by the transformer windings during a break situation may be chosen to resonate with the leakage capacitance of the electrosurgical circuit, further reducing the current flow and preventing burns.