baber/WOPTO huggingface dataset:
Patent CA-1133826-A (CA)
Inventor: FREDD JOHN V
IPC: E21B34/14
Filed: 1980-04-30
Granted: 1982-10-19
Abstract: VALVE     Abstract of the Disclosure A sleeve valve which may be made up as a part of a tubing string in which the valve member has two positions.          Dogs carried by the valve member alternately cooperate with spaced grooves in the body in said positions.  The dogs are alternately engageable by a shifting tool to shift the valve member in opposite directions and after the valve member has been shifted, the dogs are disengaged from the shifting tool.          The valve is disclosed as a part of a testing system employ-ing a circulating tool, a cushion valve, a seal unit, and a landing nipple with a transducer fitting.    This invention relates to valves.  In one form, it relates to valves which may form a part of a tubing string. Preferably, the valve depends from a well packer.    In many instances it is desirable to be able to shift a sleeve between open and closed position.  It is also fre-quently desirable to shift the sleeve with an operating tool which after the sleeve is shifted is released so that the positioning of the shifting tool is not critical or the shifting tool may move a further distance to perform other functions or to land other equipment, or for other reasons it is desirable that the valve member be shifted and then released.    In the testing of wells, it is frequently desirable to be able to selectively produce the well through the tubing.          In some instances, it is desirable to provide a sleeve valve, preferably depending from a packer, with ports which may be opened and closed to provide for flow from the well through the valve.    It is an object of this invention to provide a valve having a valve member shiftable between open and closed posi-tions in which the shifting tool is released from the valve member automatically upon the valve member reaching either its open or closed position.    Another object is to provide a valve as in the preceding object with a shutter to protect the seals in the system which shutter is automatically operable in response to movement of the valve member.    Another object is to provide a valve such as a sleeve valve with spaced dogs which are engageable by a shifting tool to move the valve member between open and closed position and in which the dogs are engaged by a shifting tool  and  then release the shifting tool as they move into cooperating grooves to alternately latch the valve member in open or closed posi-tion.    Another object is to provide a sleeve valve with latching collets  in  which  the  collets  are protected against  damage during shifting of the valve member.    Other objects, features and advantages of this invention will be apparent from the drawings, the specification and the claims.
Patent CA-1138244-A (CA)
Inventor: OHTAKE YOSHICHI
IPC: H04N5/225
Filed: 1980-05-01
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE         A simplified type television camera includes an optical system comprising a main lens system, a camera (pickup) tube, and an optical viewfinder.  The television camera comprises a single frame consisting of a pair of half frames respectively having opposing contact surfaces contacting with each other along a surface including an optical axis of the optical system, and holding parts for holding said optical system in a state where the pair of half frames are combined with the contact surfaces contacted.
Patent CA-1130612-A (CA)
Title: Vibratory actuator incorporating hydrodynamic  journal bearing
Inventor: FEWEL KENNETH J
IPC: B06B1/16
Filed: 1980-05-12
Granted: 1982-08-31
Abstract: VIBRATORY ACTUATOR INCORPORATING   HYDRODYNAMIC JOURNAL BEARING     ABSTRACT OF DISCLOSURE      A vibratory actuator (22) includes a housing (62), a rotatable shaft (78) extending through the housing, and an eccentric member (80) to which the shaft is secured.  Vibration is effected upon rotation of the eccentric member (80) by the shaft (78).  A hydrodynamic fluid film gap is provided between a partial cylindrical journal surface of the eccentric member (80) and a full cylindrical bearing surface of the housing (62), and the housing contains hydrodynamic fluid.  Radial loading between the housing (62), shaft (78) and eccentric member (80) is more uniformly distributed to reduce structural deflections and thus facilitate maintenance of the proper film of hydrodynamic fluid during operation of the actuator (22).  If desired, the fluid can be circulated through the housing (62) for cooling purposes.
Patent CA-1160394-A (CA)
Inventor: CHUNG DANIEL A
IPC: C08G18/42
Filed: 1980-06-27
Granted: 1984-01-10
Abstract: Abstract A polyester urethane fuel cell having at least one layer of a reaction product of an organic polyisocyanate and a mixed polyester and a curative.  In the preferred embodiment the fuel cell has a barrier layer composed of a polyester urethane formed from reacting bis(4-cyclohexyl isocyanate) with 10 to 90 mol percent of polyhexamethylene ortho phthalate and 90 to 10 mol percent of a polycaprolactane and curative.  The mixed polyesters are either a blend or co-condensation product of a monomeric polyol of less than 5 carbon atoms with an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid.
Patent CA-1157098-A (CA)
Inventor: BECKER MICHAEL
IPC: H02H3/50
Filed: 1980-07-18
Granted: 1983-11-15
Abstract: ABSTRACT A circuit for monitoring the voltage stress of a capacitor which produces an over-stress indicator signal responsive to the over-voltage his-tory of the capacitor.  If the measured voltage stress of the capacitor exceeds a predetermined over-voltage value, a characteristic-curve generator, having a predetermined transfer function, produces an output signal which is respons-ive to the measured voltage stress of the capacitor and the transfer function of the characteristic-curve generator.  This signal is combined with a further signal which is responsive to a predetermined permissible continuous operation voltage value.  The combined signals are conducted to an integrator having a predetermined integration time constant for producing an overload signal. The overload signal at the output of the integrator is a measure of the state of stress of the capacitor.  Circuitry may be provided for disconnecting the capacitor from a transmission line in response to the output signal of the integrator.  Also, plural capacitor voltage stress monitoring stages may be combined to monitor the capacitor voltage stress in a plurality of over-volt-age ranges.
Patent CA-1131454-A (CA)
Title: Rocket in-tube spin device and rear sabot
Inventor: BATSON JAMES L
IPC: F41F3/048
Filed: 1980-08-23
Granted: 1982-09-14
Abstract: Abstract of the Disclosure A spin device attached to the rocket nozzle to impart a relatively large amount of spin to the rocket in a short time while the rocket is guided in a tube launcher of a rearward facing step internal configuration.  The device also acts as a rear shoe or sabot for the rocket.  Upon contact with the rearward facing step, the spin device separates from the rocket.  The forward rocket shoes leave the guidance of the forward tube at the same instant of device separation thus providing a nontip-off rocket launch.
Patent CA-1141637-A (CA)
Inventor: CAMERON ERMA C
IPC: C12Q1/28
Filed: 1980-09-23
Granted: 1983-02-22
Abstract: ABSTRACT OF THE DISCLOSURE A composition, test device, method of making a test device and process for determination of an analyte in a li-quid sample are disclosed. More particularly, there is provided a composition for the determination of an analyte in a sample which composition comprises an analyte respon-sive component comprising a pyridine nucleotide susceptible of reduction in response to the presence of the analyte and at least one constituent interreactive with said analyte to cause reduction of the pyridine nucleotide, an uncoupler effective to generate an oxidizing substance from the reduced form of said pyridine nucleotide, a peroxidatively active substance, and an indicator which, when oxidized, is not susceptible to reduction by said reduced pyridine nucleotide. The pyridine nucleotide can be nicotine adenine dinucleotide (NAD) or nicotine adenine dinucleotide phosphate (NADP).
Patent CA-1154841-A (CA)
Inventor: STACH RALF-MICHAEL
IPC: H04L25/49
Filed: 1980-10-31
Granted: 1983-10-04
Abstract: ABSTRACT OF THE DISCLOSURE       In a method and apparatus for transmitting digital signals by means of signal generators by initially converting a double current pulse train, under control of bit clock pulses and before transmission, into a first unipolar pulse train composed of pulses corresponding to all positive transmission pulses and into a second unipolar pulse train composed of pulses corresponding to all negative transmission pulses, the pulse trains are code converted independently of the duration of the bit clock pulses for producing a converted signal having a first transmitting amplitude in correspondence with each pulse of the first pulse train and a second transmitting amplitude in correspondence with each pulse of the second pulse train, the second amplitude differing from the first, and the converted signal is applied to a signal generator for producing an output signal corresponding to the converted signal and in which the transmitting amplitudes corresponding to both unipolar pulse trains vary the output signal in the same polarity direction.
Patent CA-1135590-A (CA)
Inventor: BUS JAN
IPC: C11D3/00
Filed: 1980-11-05
Granted: 1982-11-16
Abstract: - 1 -                           C 575 (R) ABSTRACT            The invention relates to non-aqueous, built liquid detergent compositions.  By a judicious choice of surfactant, solvent, alkaline material and builder, and the use of an at least partial-ly hydrolyzed copolymer of maleic anhydride and ethylene or vinyl-methylether, stable compositions are obtained.            The method of making same requires first dissolving the copoly-mer in the solvent before the other ingredients are added.
Patent CA-1181154-A (CA)
Inventor: LEMOINE MAURICE G
IPC: G11B20/14
Filed: 1981-01-30
Granted: 1985-01-15
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus is disclosed for acquiring and maintaining a generally continuous clock signal from a very high  frequency encoded data stream of the type which is self-clocking and has logic state transitions occurring at two locations within each bit cell of the data stream.  The apparatus is particularly useful in decoding apparatus, such as may be used in a magnetic recording and reproducing system.  The apparatus effectively generates the clock signal from the encoded data stream and reclocks the data stream utilizing the generated clock signal to accurately position the logic signal transitions within the bit cells and thereby assure accurate decoding of the data.  The apparatus processes two simultaneously transmitted synchronous data streams, and has the capability that permits the generated clock signal from one data stream processed in one channel to be used to maintain synchronization of the other processing channel notwithstanding a loss therefrom of the data stream for short periods of time.
Patent CA-1154301-A (CA)
Inventor: SATO YO
IPC: B41K3/06
Filed: 1981-02-26
Granted: 1983-09-27
Abstract: PRINTING POSITION ADJUSTING MECHANISM FOR PRINTERS            ABSTRACT OF THE DISCLOSURE           A printing position adjusting mechanism is disclosed for use in a printer of the type in which a printing head is carried on the leading end portion of a yoke and the row of types of the printing head is arranged in the longitudinal direction of the yoke.  The printing position adjusting mech-anism includes an externally threaded adjusting ring, which is screwed into the internally threaded hole formed in the front frame plate of the yoke, and its leading end face abuts the opposed leading end face of the yoke.  This causes the print-ing head to be moved longitudinally of the yoke, thereby to adjust the printing position thereof relative to the yoke. For fixing the printing head at a desired printing position to the yoke, an internally threaded hole is formed in the leading end face of the yoke, and a fixing screw is inserted into a center hole through the adjusting ring and extends into the threaded hole in the yoke.  Thus, the printing position can be adjusted reliably with ease merely by screwing the adjusting ring in the threaded hole in the printing head.
Patent CA-1146824-A (CA)
Inventor: SHOWALTER MERLE R
IPC: F02M7/22
Filed: 1981-03-24
Granted: 1983-05-24
Abstract: ABSTRACT        A fuel-air metering system functioning according to precise flow and geometrical equations.  An air throttle valve and fuel valve are positively linked with the flow crossection-al area of each valve proportional to that of the other.  Fuel pressure drop across the fuel valve is regulated in precise proportion to the pressure drop across the upstream orifice of a two orifice in series air flow system which bypasses the air throttle.  Careful shaping of the air throttle, the bypass sys-tem orifices, the fuel valve, passage geometry, and the servo valve fuel regulation system results in an accurate proportion-ing of fuel flow to air flow.
Patent CA-1160066-A (CA)
Inventor: DEPRIESTER CORAL L
IPC: E02B17/00
Filed: 1981-03-26
Granted: 1984-01-10
Abstract: ABSTRACT OF THE DISCLOSURE A hull heating system for an offshore production structure for use in arctic waters wherein the heat from the produced fluids is used to maintain the temperature of the outer surface of the structure above the melting temperature of the ice adjacent the structure.
Patent CA-1155050-A (CA)
Inventor: KING RICHARD P
IPC: C07C29/14
Filed: 1981-04-15
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE   An enclosure for preventing the loss of heat and moisture through a ceiling entrance.  The enclosure includes a flexible envelope with a fastening means to permit ingress and egress through the ceiling entrance while insulating the ceiling with a dead air space when the entrance is closed.
Patent CA-1157189-A (CA)
Inventor: AUFDERMARSH CARL A JR
IPC: C08L27/12
Filed: 1981-04-21
Granted: 1983-11-15
Abstract: STABILIZED FLUOROELASTOMER COMPOSITIONS                    Abstract Vulcanizates of certain fluoroelastomer terpolymer compositions, wherein the terpolymer is derived from tetrafluoroethylene, perfluoro(methyl vinyl ether), and a cure-site monomer, and further wherein the composition contains non-black filler, exhibit significantly improved stability upon heat aging when small quantities of quinacridone-type pigments are incorporated therein.
Patent CA-1141004-A (CA)
Title: Alarm system activated by buzzers
Inventor: VARANO VINCENT
IPC: G08B1/08
Filed: 1981-04-24
Granted: 1983-02-08
Abstract: ALARM SYSTEM ACTIVATED BY BUZZERS     Abstract In alarm systems a central control box has been activated by sensors at the entrances.  The sensors signal the central control box through extensive wiring or by a radio transmitter at each entrance.  In this invention the signalling is done by an inexpensive buzzer at each entrance providing one definite distinct sound to be identified.  The central control box in this invention is sensitive to be activated by the buzzer of a distant entrance but it is not activated by ordinary sounds in an unoccupied house.
Patent CA-1177477-A (CA)
Inventor: JUERGENS RAINER
IPC: F03C2/08
Filed: 1981-05-13
Granted: 1984-11-06
Abstract: ABSTRACT       In a Moineau type fluid motor one of the relatively rotatable elements is made of a deformable material and axial movement of tapered surfaces within the element, caused by variation in the fluid pressure causes adjustment of the sealing force in the motor in accordance with the fluid pressure level.
Patent CA-1168828-A (CA)
Inventor: LIEVONEN KARI J
IPC: F16B21/18
Filed: 1981-06-09
Granted: 1984-06-12
Abstract: PIPE CONNECTION                        ABSTRACT       A pipe connection and method for forming said connection, wherein one pipe is connected at an angle to the side of a second pipe, said connection forming a structural joint and not a flow passage; a first pipe has a cylindrical opening formed in its side while a second pipe has one end contoured to  fit against the  side of said first pipe over said opening: said second pipe has a locking member fixed to the interior thereof with a projection which fits into  the opening in said first pipe with said projection having a stem extending therefrom having an enlarged bead which projects into the interior of said first pipe; a holding clip is positioned between underside of said enlarged head and the inner surface of said first pipe forcing the contoured end of said second pipe against the side of said first pipe. When the pipe material used is PVC, ABS, or any other plastic with similar characteristics of resiliency and bond-ability, the diametrical contour at the end of said second pipe is formed having a diameter which is slightly smaller than that of the first pipe.
Patent CA-1181252-A (CA)
Inventor: SCHOTT ROGER A
IPC: B62H5/00
Filed: 1981-06-23
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE           A lock device for vehicles such as bicycles and motorcycles having tubular frames which comprises a cable or chain threaded into an opening in a frame member with a stop to prevent full extraction from the frame, and a loop or other means to receive a padlock shackle to lock the vehicle to a post or to lock the wheel of a vehicle to prevent rotation.
Patent CA-1180628-A (CA)
Inventor: SCHMITZ WOLFGANG
IPC: A45D19/00
Filed: 1981-06-26
Granted: 1985-01-08
Abstract: Abstract Appliance for the partial dyeing of hair Appliances for the partial dyeing of hair are in-tended, for example, to serve for dyeing individual strands of hair, in order to achieve stylish effects as a result of the colour contrast.       To ensure that the appliance is mastered even by less experienced staff and that dyeing is simplified and speeded up, the appliance has at least one guide prong (14), which is provided in its interior with a dye-feed bore (16) and on at least one side, spaced at a distance from the prong end (19), with at least one peripheral dye-outlet orifice (21).   The appliance also includes a dye container (3), which is connected to the dye-feed bore (16) of the guide prong (14) and out of which the dye can be expressed by means of pressure, and at least one masking prong (22) which is located spaced at a dis-tance from the guide prong and covers hair  not to be dyed and which is located, approximately transversely to the working direction of the guide prong (14), next to the latter.  (Figure 1).
Patent CA-1174389-A (CA)
Inventor: WEBER LARRY F
IPC: G09G3/00
Filed: 1981-07-06
Granted: 1984-09-11
Abstract: AC PLASMA DISPLAY PANEL       Abstract A sustainer for an AC plasma panel is disclosed, wherein two MOSFET transistors are used to alternatively, selectively provide a two level output signal which is used to maintain the emission of light from the plasma panel. The sustainer circuitry requires only a single logic input to control both transistors, and prevents both transistors from conducting simultaneously. The slew rate of the sustainer output is controlled to prevent noise generation, and circuitry is included to prevent high frequency oscillations in the transistors.
Patent CA-1163440-A (CA)
Inventor: YASUKAWA SHOUZO
IPC: F27D17/00
Filed: 1981-08-12
Granted: 1984-03-13
Abstract: ABSTRACT OF THE DISCLOSURE         A preheating apparatus for preheating the material, such as scrap, to be charged into steel making equipment with the heat of exhaust gas from the equipment.          The apparatus comprises a plurality of preheating units for dischargeably accommodating the charge.  The preheating units are connected together in series by ducts to pass the exhaust gas through the units in series and preheat the charge in the units.
Patent CA-1175112-A (CA)
Inventor: SAFONNIKOV ANATOLY N
IPC: B23K25/00
Filed: 1981-09-16
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE           The disclosure teaches a method of electro-slag welding of light metals,  In accordance with the method, parts to be welded are mounted with a required gap therebetween.  A forming device and electrode are also mounted, and the gap is filled with a flux.  A slag pool is set up, and the electrode is melted, the edges of the parts to be welded being welded with the formation of a metal pool.  The metal pool is accumulated outside the gap above the edges being welded, and the metal pool is maintained in the liquid state.  The gap is filled with the liquid metal after the termination of fusion of the electrode and accumu-lation of the metal pool in a volume required for filling the gap considering weld reinforcement.  The method is practiced on a forming device which includes moulds provided with porous elements and constructed with stepped longitudinal grooves forming a supporting platform on which are disposed the porous elements. A container is disposed above the parts to be welded, the container being further provided with external and internal terminals and a jumper connecting the internal terminals.  A container is further disposed under the parts to be welded which is provided with a transverse baffle member.
Patent CA-1179744-A (CA)
Inventor: VAN DRIEST HANS
IPC: H04L27/18
Filed: 1981-12-09
Granted: 1984-12-18
Abstract: QUADRIPHASE DIFFERENTIAL DEMODULATOR            Abstract of the Disclosure A method and apparatus for synchronizing a digital data demodulator to a received phase modulation carrier signal in which the carrier signal is phase shifted during each modulation period of the carrier to represent one of four pairs of binary bits or dibits.  A first dibit clock is adjusted to the phase of a reference dibit clock whose output is used to synchronize the demodulator in establishing the location of the modula-tion period of the incoming carrier.  In order to over-come errors found in the decoding of the carrier signal, the adjustment of the dibit clock is suppressed when the dibits 00 and 10 are being decoded.  With this con-struction, it was found that the dibit clock may run out of synchronization if long strings of zero characters (dibits 00) are received.  In order to solve this problem, a second dibit clock is employed which is ad-justed on dibits 00.  After a predetermined number of continuous 00 dibits have been decoded, the suppression of the adjustment to the first dibit clock is removed and the phase corrections applied to the second dibit clock are applied to the first dibit clock.
Patent CA-1156457-A (CA)
Inventor: GANDY JAMES
IPC: G09F13/04
Filed: 1981-12-22
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE           An illuminated sign assembly has a casing with a wall extending downwardly from the top, the top having a substantially horizontal shelf and a downwardly extending lip below the shelf, and the wall having a flange with a free end portion resting on the shelf.  A hinge member has a generally U-shaped section with upwardly extending spaced arms connected by a bight, the bight being located below the downwardly extending lip of the top with one arm extend-ing upwardly on one side of the lip below the flange.  The flange is detachably secured to one arm of the hinge member, and the other arm of the hinge member extends upwardly on the opposite side of the lip to the one arm to retain the wall in assembly with the top while permitting limited upward pivotal movement of the wall relative to the top by pivoting of the free end of the flange on the shelf.
Patent CA-1178102-A (CA)
Title: Imageable film including an intermediate layer  containing metal and metal oxide or sulfide and a  photoresist layer
Inventor: CRAWFORD GEORGE H
IPC: G03F7/09
Filed: 1982-01-06
Granted: 1984-11-20
Abstract: Abstract of the Disclosure Imaging materials are disclosed which comprise a substrate having a metal/ (metal oxide or sulfide) coating with an optical density of at least 0.2 on one surface of the substrate and a photoresist layer over said coating.