baber/WOPTO huggingface dataset:
Patent CA-1062927-A (CA)
Inventor: WILLITTS BENJAMIN R
IPC: F25B47/02
Filed: 1978-04-04
Granted: 1979-09-25
Abstract: REFRIGERATION SYSTEM UTILIZING SATURATED GASEOUS REFRIGERANT FOR DEFROST PURPOSES                 ABSTRACT OF THE DISCLOSURE         A system for refrigerating food products utilizes a saturated gaseous refrigerant, commonly called "cool gas" for defrosting an evaporator or set of evaporators.  When defrost is to occur, the saturated gaseous refrigerant flows from a receiver through the evaporator or set thereof being defrosted.          A differential pressure control switch operates to prevent flow of refrigerant to the receiver from the liquid supply line through which said refrigerant normally flows from the condenser to the evaporators.  The flow from the liquid line to the receiver is prevented whenever the pressure in the liquid line exceeds the pressure in the receiver by a predetermined value.  Accordingly, if liquid in the receiver is fully evaporated in providing saturated gaseous refrigerant for defrost purposes, and the pressure in the receiver is less than in the liquid line and causes the flow of liquid from the liquid line to the receiver to be closed off by operation of the differential pressure switch, the defrosting operation switches automatically from cool to hot gas as a response to the depletion of the cool gas supply.
Patent CA-1094566-A (CA)
Inventor: SHROOT BRAHAM
IPC: C07D233/22
Filed: 1978-06-09
Granted: 1981-01-27
Abstract: A B S T R A C T        Imidazoline derivatives having the general formula                 (I) in which R represents a cyclobutyl, cyclopentyl or cyclohexyl radical, and their pharmaceutically acceptable acid addition salts are described.  These derivatives and salts are useful as vaso-constrictors, e.g. for nasal drops and sprays, and are produced by reacting a phenol with 2-chloromethylimidazoline hydrochloride or reacting a substituted phenoxyacetonitrile with ethylenediamine monotosylate.
Patent CA-1109269-A (CA)
Inventor: PAULL PETER L
IPC: C01B3/36
Filed: 1978-07-05
Granted: 1981-09-22
Abstract: PARTIAL OXIDATION PROCESS  (D#73,184-1 FB) ABSTRACT Sensible heat in the hot effluent gas stream leaving a partial oxidation gas generator for the production of gaseous mixtures comprising H2+CO i.e. synthesis gas, reducing gas, or fuel gas, is used at maximum temperature to heat a stream of gaseous heat transfer fluid comprising a portion of the product gas circulating in a substantially closed loop.  The heat transfer fluid serves as the working fluid in a turbine that produces mechanical work, electrical energy, or both.  Further, the heat transfer fluid leaving the turbine may be used to preheat hydrocarbonaceous feed and free-oxygen containing gas which is then introduced into the gas generator.  A shell and tube heat exchanger in which cleaned and optionally purified generator gas is continuously bled from inside the tubes to the out-side, or the reverse may be employed.  By this means the surfaces of the tubes and headers in the heat exchanger may be protected from the surrounding hot effluent gas stream from the gas generator which enters the heat exchanger at maximum temperature.  The bleedstream mixes with the effluent gas stream passing through the heat exchanger and a portion of this mixture is recycled as make-up.     -I-
Patent CA-1109878-A (CA)
Inventor: LOS MARINUS
IPC: C07D235/02
Filed: 1978-07-20
Granted: 1981-09-29
Abstract: ABSTRACT OF THE INVENTION   The invention relates to imidazolinyl benzamides and a method for the preparation thereof.  The invention also relates to a method for the control of undesirable plant species by the application of a herbicidally effective amount of an imidazolinyl benzamide to the foliage of the undesirable plants or to soil containing seeds or other propagating organs of the plants.           The compounds of the invention have the structure   wherein X is hydrogen, alkyl C1-C3, halogen or nitro; R1 is alkyl C1-C4;          R2 is alkyl C1-C6, cycloalkyl C3-C6, alkenyl C2-C4, phenyl, halophenyl or benzyl or when R1 and R2 are taken together with the carbon to which they are attached they may represent cycloalkyl C3-C6 optionally substituted with methyl; R3 is hydrogen, alkyl C1-C12 optionally substituted with one C1-C3 alkoxy group or one C3-C6 cycloalkyl group or one phenyl group or one furyl group, alkenyl C3-C5 optionally substituted with one or two C1-C3 alkyl group(s) or one phenyl group or with one to two halogen substituent; alkynyl C3-C5 optionally substituted with one or two C1-C3 alkyl group(s) or one phenyl group or with one to two halogen substituent(s), benzyl, cyclohexenylmethyl, ethynylcyclohexyl, ethynylallyl or pentadienyl, cycloalkyl C3-C6 optionally substituted with one or two C1-C3 alkyl group(s); or a salt-forming cation of alkali metals, ammonium and aliphatic ammonium; and when R1 and R2 are not the same the optical isomers thereof, and the isomeric mixtures thereof; and except when R3 is a salt-forming cation, the acid addition salts thereof.
Patent CA-1089663-A (CA)
Inventor: BLOCK MITCHELL L
IPC: E05B17/14
Filed: 1978-08-01
Granted: 1980-11-18
Abstract: ABSTRACT OF THE DISCLOSURE          An improved obturator for safe deposit boxes and the like is integrally manufactured from a resilient syn-thetic material such as nylon.  It includes a substanti-ally flat head member having a rail member cantilevered perpendicularly from one side thereof.  In the preferred embodiment, the rail member includes three elongated arms each joined at both ends thereof to transverse end and dis-tal end members.  One arm, centrally positioned, is straight and serves to limit the maximum spacing between the said transverse end members, while the upper and lower arms are provided longer than the one arm and bend outwardly, flexi-bly and resiliently, on opposite sides of the longitudinal plane of the central arm.  This permits the longer arms, when flexed, to contact opposite interior portions of the key hole channel to frictionally resist withdrawal, and to also engage lock tumblers in the keyhole channel, thereby preventing accidental obturator withdrawal.
Patent CA-1119962-A (CA)
Inventor: NAWA MOTOYUKI
IPC: F24F13/072
Filed: 1978-08-09
Granted: 1982-03-16
Abstract: A FLUID DEFLECTING ASSEMBLY    Abstract of the Disclosure A fluid deflecting assembly comprises a fluid duct with a deflecting blade pivotally mounted therein.  One of walls forming the structure has a wall portion adjacent the outlet opening that is outwardly diverging in the downstream direction with respect to the flow of a fluid medium, e.g. air, through the duct.  Depending upon the position of the deflecting blade, the stream of fluid medium can be forced to adhere to the outwardly diverging wall portion to attain a relatively wide angle of deflection.
Patent CA-1081479-A (CA)
Inventor: SILVESTRI GEORGE J JR
IPC: F01K9/00
Filed: 1978-08-22
Granted: 1980-07-15
Abstract: A DRY COOLING POWER PLANT SYSTEM              ABSTRACT OF THE DISCLOSURE            A power plant system utilizing a zoned or multi-pressure condenser or cooling tower whose different zones are air-cooled in a dry manner.  The zoned condenser may condense motive cycle fluid by passing it directly through air-cooled heat exchange conduits or by passing a dense fluid through an intermediate, zoned condenser where it boils as it absorbs heat from the cycle fluid and then through the aforementioned zoned, cooling tower.  A separate coolant circuit is used between each intermediate condenser zone and the cooling tower.  Each intermediate condenser zone is maintained at a predetermined pressure by the cool-ant flowing through one of the coolant circuits and trans-porting heat therewith from the intermediate condenser to air flowing through the dry cooling tower.  To obtain dif-ferent boiling and condensing temperatures in the coolant circuits different coolants or different coolant pressures must be utilized therein.  The coolant circuits are pre-ferably arranged in the dry cooling tower in series airflow relation in the order of increasing coolant circuit tem-perature along the direction of normal cooling air flow.          Zoned, multi-pressure condensers increase efficiency of the power plant system while the use of such dense, boiling coolant can decrease the surface area required in the intermediate condenser and cooling tower and reduce the amount of coolant that must be circulated therebetween.
Patent CA-1078728-A (CA)
Inventor: JOHNSON ARTHUR R
IPC: B21D43/02
Filed: 1978-09-14
Granted: 1980-06-03
Abstract: ABSTRACT A tool assembly includes first and second means which define between them a work station at which they periodically engage and release a moving web of material to perform a work operation, such as die cut-ting, on the web. A reciprocating shuttle has a pair of guide rollers on it which respectively engage the web before and after the tool means to alternately increase and decrease the work station velocity of the web by alternately decreasing and increasing the web path distance between the shuttle and the work station. The frequency of tool means movement is adjustable to adjust the repeat between work operations on the web. The shuttle means are synchronized with the tool means so that the work station web velocity at the time the tool means contact the web is sub-stantially equal to the tangential velocity of the tool means. The method of the invention calls for thus adjusting momentary work station web velocity to match the tangential velocity of the tool means while maintain-ing a constant average web velocity through the tool assembly.
Patent CA-1132707-A (CA)
Title: Driving circuit for piezo-electric  transducer
Inventor: SAKAMOTO HITOSHI
IPC: H04R17/00
Filed: 1978-12-05
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE         A piezo-electric transducer, such as, a bi-morph leaf, comprised of a pair of piezo-electric elements which are oppositely poled in opposite directions and interposed between inner and outer electrodes with each element being bonded to the other at the respective inner electrodes, is provided with a drive circuit applying a drive voltage across the outer electrodes, one of which is desirably grounded, for deflecting the transducer, and which clamps the voltage at the bonded together inner electrodes to a relatively small maximum value at lease in response to a polarity of the drive voltage opposed to the direction in which one of the piezo-electric elements is poled so as to avoid substantial depolarization of at least that one element.  The foregoing arrangement is particularly desirable in an apparatus in which a magnetic head is moved along a track on a magnetic tape or other record medium for reproducing information signals recorded in such track which the bi-morph leaf supports the head for deflecting the latter in a direction transverse to that along the track in response to the drive voltage.
Patent CA-1099279-A (CA)
Inventor: ANDERSON ALFRED P
IPC: C07F9/20
Filed: 1979-01-26
Granted: 1981-04-14
Abstract: Abstract:            An improved process for the preparation of 0,0-dialkyl phosphorochioridothioates in which distillation to recover substantially pure product is carried out in presence of a solubilizing or suspending agent, for example, liquid hydrocarbons, particularly aromatics having at least 10 carbon atoms which have good sulfur solubility, higher boiling point than the product and are inexpensive; specifically, naphthalenes are useful.
Patent CA-1102877-A (CA)
Inventor: KITZINGER FRANK
IPC: G01N33/20
Filed: 1979-02-16
Granted: 1981-06-09
Abstract: OXYGEN MONITORING CIRCUIT An oxygen monitoring circuit is disclosed. The circuit comprises a high impedance follow and hold circuit adapted for connection to an oxygen probe, a readout unit connected to the high impedance follow and hold circuit, a programmer normally connecting the oxygen probe to the high impedance follow and hold circuit but momentarily disconnecting the oxygen probe from the high impedance follow and hold circuit for a relatively short time interval and loading it with a resistor having an impedance relatively higher than the normal impedance of the probe, and a probe failure indicator connected to the outputs of the oxygen probe and of the high impedance follow and hold circuit for detecting any significant change in impedance of the probe and resistor combination as a result of loading and for operating an alarm when the impedance of the probe exceeds a predetermined value.
Patent CA-1123418-A (CA)
Inventor: EBERLY PAUL E JR
IPC: C10G35/06
Filed: 1979-04-02
Granted: 1982-05-11
Abstract: C.S.862,11? etc.        ABSTRACT OF THE DISCLOSURE   A catalyst composition, and process, useful in reforming a hydrocarbon feed at reforming conditions without excessive hydrogenolysis.  The catalyst is constituted of a composite which includes a refractory or inorganic oxide support material, particularly alumina, a Group VIII noble metal hydrogenation-dehydrogenation component, notably platinum, iridium, and selenium. Hydrogenolysis is suppressed, and significantly greater yields of higher octane C5+ liquid product are obtained by contact of the selenium promoted iridium-containing catalyst with oxygen prior to contact of the catalyst with a hydrocarbon fraction at reforming conditions.  Suitably, the oxygen pretreatment is conducted by contact of the catalyst with an oxygen containing gas at elevated temperatures.
Patent CA-1136245-A (CA)
Inventor: SWEANY LOUIS P
IPC: G08B23/00
Filed: 1979-04-20
Granted: 1982-11-23
Abstract: A timed audible alarm system of the type including a piezoelectric component for providing an audible signal and circuitry for driving the piezoelectric component at substantially its resonant frequency provides circuitry for continuously producing the audible signal during the existence of a first condition, circuitry for intermittently producing the audible signal for a predetermined period during the existence of a second condition and in response to initiation of a third condition, the circuitry for intermittently providing including a heat activated bimetallic switch for controlling the predetermined period and for terminating the inter-mittently produced audible signal thereafter, the switch being coupled to begin heating in response to initiation of the third condition, and a visual signal device coupled to the bimetallic switch for visually signalling initiation of the third condition for the predetermined period and independent of the existence of the second condition, wherein the improvement enables an alarm system to provide recognizably different modes of operation to indicate the existence of different conditions.
Patent CA-1127739-A (CA)
Title: Microprocessor function generator for  closed loop control
Inventor: CARP RALPH W
IPC: F02D41/26
Filed: 1979-04-26
Granted: 1982-07-13
Abstract: HYBRID ELECTRONIC CONTROL UNIT   ABSTRACT OF THE DISCLOSURE           A hybrid electronic control unit for regulating the air/fuel ratio of an internal combustion engine is disclosed.   The electronic control unit is divided into two functionally distinct parts including an analog func-tion generator and a digital function generator.   The analog function generator receives analog signals to pro-cess efficiently by analog scaling, amplification, multi-plication, and division while the digital function genera-tor receives digital and logic inputs to process effi-ciently by addition,  subtraction, and comparison.   The analog  function generator  interfaces with  the  digital function generator by an analog signal from a D/A con-verter and other unconverted digital output signals from the digital function generator.   Preferably, the analog function generator provides an open loop air/fuel ratio calibration based upon a speed density calculation includ-ing special condition corrections to the base calibration. Primarily,  the digital  function generator  is a micro-processor implemented closed loop integral controller pro-viding a closed loop correction signal to the open loop scheduler.  The closed loop correction signal is provided from the digital function generator by a pair of cascaded digital integrators having different authority levels and integration rates.  The cascade is formed by combining an asymmetric primary integrator waveform which has one RPM dependent ramp rate with a symmetric secondary integrator waveform which  has  a  time dependent  ramp  rate.   The primary integrator has a smaller authority and a faster ramp rate than the secondary integrator.
Patent CA-1144636-A (CA)
Inventor: LANGERAAR HUIBERT B
IPC: G10K11/34
Filed: 1979-08-17
Granted: 1983-04-12
Abstract: ABSTRACT OF THE DISCLOSURE A circuit arrangement for generating amplitude-modulated, ultra-sonic transmission pulses comprising at least a switching circuit provided with an inductive load for generating the transmission pulses and controlled with a plurality of switching pulses per pulse interval; a memory filled with infor-mation about the appropriate pulse width of the switching pulses as required per transmission pulse interval; and a switching-pulse generator for producing switching pulses using the pulse width information and timing signals deter-mining the switching pulse frequency.  This circuit arrangement is suitable for sonar applications for the purpose of improving the detection of doppler shifted echo signals.
Patent CA-1151291-A (CA)
Inventor: BROWN BYRON R
IPC: G11C11/14
Filed: 1979-09-21
Granted: 1983-08-02
Abstract: A CLOSE-PACKED BUBBLE PROPAGATION DEVICE       Abstract A close-packed magnetic bubble propagation device includes a pattern having a plurality of propagation elements positioned in at least four adjacent rows. These elements are spaced to provide a period or spac-ing of bubbles in these rows of less than three bubble diameters.  Upon application of a rotating in-plane field to the elements, bubbles in adjacent rows move in opposite directions.  A preferred embodiment of this propagation device has at least two storage loops which contain at least four adjacent horizontal rows of propagation elements.  A preferred device utilizing this pattern has at least two storage loops and an access path which passes through each of the loops.  An electrical conductor is associated with the propagation elements in the access path so that the passing of a current through the conductor together with the appli-cation of an in-plane rotating field to the elements causes bubbles associated with the elements in the access path to move along the access path.  Preferably, the pattern is surrounded by an array of confinement elements which confine the bubbles to the storage loops and the access path.
Patent CA-1122321-A (CA)
Inventor: LEHUREAU JEAN C
IPC: G11B7/24015
Filed: 1979-09-28
Granted: 1982-04-20
Abstract: Abstract of the Disclosure PROTECTED OPTICAL DISC     This disc has a layer of an inscribable and optically legible-recording material deposited on a transparent plate traversed by the recording or reading beam and pro-tected from the outside by a cover formed for example by a metal sheet, whose two surfaces are fixed to the layer so as to form a space in front of the latter.
Patent CA-1103627-A (CA)
Inventor: ANDERSSON MORGAN
IPC: F04B9/127
Filed: 1979-10-05
Granted: 1981-06-23
Abstract: ABSTRACT     A compressed-air operated dispenser for continuously dispensing a substance enclosed in a container, and in particular a viscous or paste-like substance, said dispenser comprising an outlet passage extending from said container to an outlet;  a valve which normally closes said passage;  a com-pressed-air operated piston arranged to exert pressure on said substance in said passage and to open said valve;  and means for initiating the supply of compressed air for the purpose of operating said piston.  In accordance with the invention there is provided a valve means arranged to move the piston to a starting position in which a pressure-actuating chamber is closed on one side of the piston with the exception of a passage through which compressed air can be forced into the chamber to cause the piston to move to a first ter-minal position.  In this position the substance is subjected to pressure and the valve is opened and the piston ceases to act on the valve means.  An air-return passage is opened to cause the valve means to be moved to a second position, in which an exhaust hole for compressed air in said chamber is pla-ced in communication with atmosphere and the piston returns to a second ter-minal position in which it causes the valve means to return to its starting position.
Patent CA-1137172-A (CA)
Inventor: MCDONALD RAY S
IPC: A61N1/372
Filed: 1979-11-05
Granted: 1982-12-07
Abstract: DIGITAL CARDIAC PACEMAKER            ABSTRACT           There is disclosed herein a programmable cardiac pacemaker pulse generator utilizing digital circuitry for controlling the provision of cardiac stimulating pulses. The pulse generator is capable of having the rate, the pulse width, the pulse amplitude, the refractory period, the sen-sitivity and the mode of operation programmed.  In addition, the pulse generator can have the output inhibited and can respond to programming signals causing a threshold margin test to be performed, effects of closure of the reed switch overridden, a hysteresis function added and a high rate ex-ceeding the normal upper rate limit programmed.  Many of the programmable functions of the pulse generator can either be programmed on a permanent or a temporary basis.  The pulse generator further includes means for signaling the accept-ance of a programming signal, and means to reset the program acceptance circuit if extraneous signals are detected as pro-gramming signals.  The program signal acceptance circuit per-forms several different checks on the detected programming signal including a parity check, an access code check and de-termining if the proper number of signals were transmitted within a given time.  The timing circuit of the pulse genera-tor includes a crystal clock oscillator and counter means for counting theclock pulses therefrom to determine the rate of the pacemaker.  The pulse width of each pacemaker pulse is determined by using a voltage controlled oscillator in place of the crystal oscillator to obtain energy compensation due to the battery voltage decreasing with time.
Patent CA-1184148-A (CA)
Inventor: LOHRBERG KARL
IPC: C01B11/06
Filed: 1979-11-14
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE:           This invention is concerned with an improved process for the production of chlorine dioxide and, if desired, chlorine from hydrogen chloride and electrolytically produced alkali metal chlorate, wherein the resulting residual solution is recycled to the electrolytic process by which new chlorate is produced and wherein at least a part of hydrogen chloride which is equivalent of the chlorine dioxide product is produced in burning chlorine gas produced by an electrolysis of alkali chloride with hydrogen, characterized in that the cycle comprising the decomposition of chlorate and the electrolytic production of chlorate is combined with an electrolysis of alkali metal chloride in a membrane cell, and that the sodium chlorate which becomes available as a by-product of the electrolysis in said membrane cell, or the decomposition product of said sodium chlorate is fed to the cycle comprising the decomposition of chlorate and the electrolytic production of chlorate.
Patent CA-1136863-A (CA)
Inventor: MORELOCK CHARLES R
IPC: B24D3/08
Filed: 1979-12-18
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE          A shaped confined structure composed of a mass of diamond and/or cubic boron nitride crystals coated with elemental non-diamond carbon in contact with a carbonaceous substrate is infiltrated by fluid silicon producing a like-shaped composite of a polycrystalline body phase integrally bonded to a substrate supporting phase.