baber/WOPTO huggingface dataset:
Patent CA-2028355-A1 (CA)
Title: Radar system
Inventor: SHRADER WILLIAM W
IPC: G01S13/52
Filed: 1990-10-23
Abstract: Abstract of the Disclosure A radar system adapted to operate with a selected one of a plurality of pulse repetition intervals to produce a corre-sponding train of transmitted pulses of radio frequency energy in response to a train of trigger pulses and to receive returns from objects in response thereto, with returns from stationary objects producing signals with the same phase shift relative to the phase of a reference signal.  The system includes a switching circuit responsive to a signal representative of the selected one of the pulse repetition intervals, for producing charge controlling signals with time intervals between the charge controlling signals and the trigger pulses being selected in accordance with the selected one of the pulse repetition intervals.  A pulse forming network, is provided for storing energy in response to the charge controlling signals and for providing output pulses in response to the trigger pulses.  The transmitted pulses of radio frequency energy are produced in response to the output pulses, with signals produced in response to stationary objects having the same phase shift relative to the phase of a reference signal.
Patent CA-2029508-A1 (CA)
Title: Plasma torch
Inventor: LABROT MAXIME
IPC: B23K10/00
Filed: 1990-11-07
Abstract: The invention relates to a plasma torch of the type comprising   - two tubular and coaxial electrodes (5 and 6), one a continuation of the other, each electrode being arranged in a holder (3 and 4); - fluid-flushed means of cooling said electrodes, the said means of at least one electrode comprising a sealed cylindrical chamber (16) provided in the corresponding holder and separated by a cylindrical wall dividing the chamber into two communicating annular spaces (16A and 16B) through which the said coolant fluid circulates;   - means (9) for initiating an electric arc between the electrodes; - means (11, 13) for injecting a plasma-forming gas between the electrodes; and, - electromagnetic coil means for displacing the pick-up points of the said electric arc onto the inner surfaces of the said electrodes.   According to the invention, the coolant fluid for the said electrode, whose sealed chamber (16) contains the separation wall, is electrically insulating and the said electromagnetic coil (15) does the job of the separation wall.
Patent CA-2032674-A1 (CA)
Title: Oxazole derivatives
Inventor: MEANWELL NICHOLAS A
IPC: C07D413/14
Filed: 1990-12-19
Abstract: ABSTRACT         Oxazole derviatives having Formula I or II are disclosed which are useful as inhibitors of mammalian blood platelet aggregation.                                  (I)              (XIX)                           (II)                 (XX) Formula I and Formula XIX compounds are those wherein n is 7-9 and R is hydrogen or lower alkyl.  Formula II compounds are those wherein R is hydrogen, lower alkyl or together with CO2 is tetrazol-1-yl; R1 is phenyl or thienyl; X is a divalent connecting group selected from the group consisting of CH2CH2, CH=CH, and CH2O; Y is a divalent connecting group attached to the 3 or 4 phenyl position selected from the group consisting of OCH2, CH2CH2 and CH=CH.  Formula XX compounds are those wherein the OCH2CO2R moiety is attached to the 3 or 4 phenyl position and R is hydrogen or lower alkyl.
Patent CA-2034283-A1 (CA)
Title: Phosphonic acid derivatives and thionophosphonic acid derivatives
Inventor: WIRTH HERMANN O
IPC: C07F9/6539
Filed: 1991-01-16
Abstract: A-17918/+/CGM 350 Phosphonic acid derivatives and thionophosphonic acid derivatives Abstract Compounds of the general formula I       (I), in which n is 1,2 or 3 and in which X is oxygen or sulfur, T has the meaning of -S-, -S-S-, -S-S-S-, -S-S-S-S-, -S-S-S-S-S, -?-,   or   and Y has the meaning of   , in which Z has the meaning of -H, -COR13, -COOR13 or -CONHR13, and Q has the meaning of oxygen or -NR°-, and R1, R2, R°, R4 and R13 are as defined in claim 1, with the proviso that the compound of the formula C2H5-S-CH2CH(OH)-P(OC2H5)2 is excepted.   The invention also relates to compositions containing the compounds of the formula I and organic materials, for example functional liquids and, in particular, lubricants.
Patent CA-2034461-A1 (CA)
Title: Copolymer compositions prepared from triazine derivatives of polycarbonates
Inventor: BROWN STERLING B
IPC: C08G81/00
Filed: 1991-01-17
Abstract: COPOLYMER COMPOSITIONS PREPARED FROM TRIAZINE DERIVATIVES OF POLYCARBONATES    Abstract Triazine compounds are prepared by the reaction of a bisphenol or a hydroxy-terminated polycarbonate with a chlorocyanurate containing epoxy and/or aromatic substituents.  The compounds derived from bisphenols or protected bisphenols may be converted to polycarbonates, which form copolymers with other polymers containing acid or amine groups or derivatives thereof.
Patent CA-2035319-A1 (CA)
Title: Herbicidally active substituted sulfonyl urea derivatives and a process for the preparation thereof
Inventor: VASS ANDRAS
IPC: C07D239/47
Filed: 1991-01-30
Abstract: HERBICIDALLY ACTIVE UREA DERIVATIVES AND A PROCESS FOR THE PREPARATION                               THEREOF                           A B S T R A C T   The invention relates to novel, herbicidally active substituted sulfonylurea derivatives of the general formula (I), (I)   wherein R1    stands for hydrogen, halogen, C1-4alkoxy, halo-C1-4alkoxy, C1-3alkylsulfonyl or a group of the formula COR6; R2    means hydrogen, C1-3alkyl or phenyl; R3    represents C1-6alkyl, C3-6alkenyl, C1-3alkoxyalkyl group, C2-4alkyl subsutituted by one or more halogen(s)  or benzyl; R4 and R5  mean independently of each other a C1-4alkyl, C1-4alkoxy group, halogen, C1-3alkylamino or di(C1-3alkyl)amino or C1-3alkyl-thio; R6    stands for a C1-4alkoxy, C3-6alkenyloxy, C3-6alkoxyalkyl, C1-3alkyl-amino, di(C1-3alkyl)amino, piperazinyl or morpholinyl group; X    means oxygen or sulfur; and E    stands for a methine group or nitrogen, their salts as well as to herbicide compositions containing these compounds optionally together with an antidote. The invention further relates to a process for preparing the compounds of general formula (I). The compositions according to the invention are highly effective against a number of weeds and selective when used in cultures of cultivated plants.
Patent CA-2035445-A1 (CA)
Title: System for receiving tv signals transmitted by satellite
Inventor: MUTZIG JEAN-PAUL
IPC: H03D7/16
Filed: 1990-06-19
Abstract: The invention relates to a system for simultaneously receiving several satellite-transmitted television channels. This system includes a multifrequency ultra high frequency head (23), placed in an outside unit, of which the inputs are combined with the satellite antennas (7, 10). Wide band demodulation (26) is made possible by an ultra high frequency source (39) controlled by a synthetizer (38). Digital signals transmitted by the linking cable (3) ensure that the synthesizer (38), and therefore the selected television channels, are programmed. An amplitude remodulation (27) provides signals in the 40-860 MHz band, carried by the linking cable (3), for terrestrial antennas. Applications in simultaneous reception of several television channels.
Patent CA-2035637-A1 (CA)
Title: Method and apparatus for generating a 48-bit frame check sequence
Inventor: LAUCK ANTHONY G
IPC: G06F13/00
Filed: 1991-02-05
Abstract: ABSTRACT     A node operating in a network using the International Standard Organization (ISO) High-Level Data Link Control (HDLC) network protocol includes a mechanism for encoding information such that frames including the encoded information can be correctly interpreted by nodes operating in either of the standard 16-bit or 32-bit ISO-HDLC operating modes.  The encoding mechanism produces a preliminary frame check sequence by encoding the information in an encoder using a generator polynomial G48(x), which is a combination of the generator polynomials G16(x) and G32(x) which are used to produce frame check sequences for nodes operating in 16-bit or 32-bit modes, respectively.  Before the information is encoded, the encoding mechanism sets the encoder to an initial condition using an initializing polynomial I48(x).  The preliminary frame check sequence is further encoded by adding to it a complementing polynomial C48(x).  The result is a 48-bit frame check sequence.  The encoding mechanism appends the 48-bit frame check sequence to the information, and transmits the information and the appended 48-bit frame check sequence over the network as part of a frame.            Figure 4
Patent CA-2036066-A1 (CA)
Inventor: TAHIRA FUMIAKI
IPC: G06F13/366
Filed: 1991-02-11
Abstract: A bus control system for controlling inter-multiprocessor communication by polling, comprising a listener response signal line for transferring an end answer signal from a listener circuit to a talker circuit immediately when the transfer of data between the talker and the listener is finished, without waiting for the completion of data transfer within the receiving processor, whereby the bus occupation period is shortened.
Patent CA-2037536-A1 (CA)
Title: Twin patch applicator
Inventor: WICK JOHN J
IPC: A61K9/70
Filed: 1991-03-05
Abstract: ABSTRACT OF THE DISCLOSURE Devices  for applying a plurality of active agents to the skin of a patient are disclosed including a  liner  layer with  a  releasable  surface,  a  carrier layer, and a plurality of active agent carriers on the surface  of  the  carrier  layer,  with  the  releasable surface of the liner layer in contact with the surface of the carrier layer including the active agent carrier and  the  two  surfaces  being  releasably  heat  sealed together at least at a location between the plurality of active agent carriers in order to physically separate them prior to  removal  of  the  liner  layer  from  the carrier layer.
Patent CA-2037700-A1 (CA)
Title: Paint can holder and paintbrush receptacle
Inventor: LAFONTAINE ROY A
IPC: B44D3/12
Filed: 1991-03-07
Abstract: A paint can holder which comprises a rigid member which includes a generally flat portion for engaging the outer surface of the paint can, a handle extending outwardly from the flat portion and which may be inserted in a hollow ladder rung for mounting a paint can to the ladder. The holder is attached to the paint can by portions which are sized and positioned to surroundingly engage the rim. The rim is received through an opening which is sized to receive the rim width-wise but is too small to receive the rim height-wise whereby the flat plate must be oriented generally parallel to the rim upper surface or at least at a substantial angle between the flat plate and paint can side in order to initiate receiving of the rim within the enclosure provided by. the holder. The holder must be oriented again to that position to disengage it from the paint can thus ensuring against inadvertent detachment thereof. A second member is detachably attachable to the top plate of a step-ladder and disposes an elongate cylindrical member for engagement with the handle for alternatively mounting the paint can to a step-ladder.      A paintbrush holder is composed of air impermeable material and shaped and sized to retard air flow to the paintbrush bristles to maintain their moistness for perhaps at least an hour during temporary cessation of painting and to maintain during that time the shape of the bristles. The paintbrush holder includes a clip fox attachment thereof to a paint can rim with the holder hanging along the outer surface of the paint can. The clip is shaped and sized to permit easy yet secure attachment whereby inadvertent detachment may be prevented.
Patent CA-2039794-A1 (CA)
Title: Glass fiber reinforced polycarbonate/polyester blends
Inventor: GALLUCCI ROBERT R
IPC: C08K9/04
Filed: 1991-04-04
Abstract: ABSTRACT OF THE DISCLOSURE The tensile strength and flexural  strength of glass   fiber   reinforced   aromatic   polycarbonate resin/poly(butylene terephthalate)  resin blends  is improved  by  employing  a  glass  fiber  reinforcing agent  treated  with  a  sizing  agent  selected  from epoxy functional cyanurates and isocyanurates.  The reinforced blends are useful for making  molded articles.
Patent CA-2041665-A1 (CA)
Inventor: DIFRANCO DINO F
IPC: C25D1/04
Filed: 1990-09-12
Abstract: Copper conductive foil (20) for use in preparing printed circuit boards is electrodeposited from an electrolyte solution (18) containing copper ions, sulphate ions, animal glue and thiourea. The thiourea operates to decrease the roughness of the foil, to enable operation at higher current densities and/or to modify the ductility characteristics of the foil.
Patent CA-2042695-A1 (CA)
IPC: A61M5/32
Filed: 1991-05-15
Abstract: A blood draw needle holder is modified on the outside surface of the closed end and the inside surface of the open end so that the closed end of one holder interlocks with the open end of another holder.   As a result,  one holder with no needle, but   identical   with   another   holder   with   a contaminated needle, may be locked  in place over the contaminated needle.  In addition, a stationery locking  socket  is  provided  for  placement  on  a phlebotomist's  tray  or  cart  for  locking  a  new unused holder in place, with the open end of the unused  holder  facing  upright.   Thereafter,  the phlebotomist  inserts  the  contaminated  needle  end with  its used holder  into the unused holder and locks the two together.  With such an arrangement, no cumbersome telescoping shield is required on the holder being used for taking a blood sample.   A conventional blood draw procedure takes place.  The cost  is  reduced substantially since all holders, whether being used for blood draw or as a shield are  identical  and  made  from  the  same  mold. Moreover,  a plurality of identical holders may be placed in a single container on the phlebotomist's tray for quickly grabbing one for blood draw use or cover use.
Patent CA-2043971-A1 (CA)
Title: Curing fluorocarbon elastomers
Inventor: WEIGELT JEFFREY D
IPC: C08K5/3412
Filed: 1991-06-05
Abstract: ABSTRACT      Fluorocarbon elastomer gum is compounded with curing agent comprising a polyhydroxy compound and a salt thereof with a salt-forming heterocyclic amine, the resulting compound gum is shaped and heated to form a cured shaped article such as automotive fuel line hose or O ring.
Patent CA-2044399-A1 (CA)
Title: Method and apparatus for storing and merging multiple optically scanned documents images
Inventor: MCMILLIN JOHN V
IPC: H04N1/417
Filed: 1991-06-12
Abstract: A method for storing multiple scanned images of a response-marked form document comprises scanning a copy of the form document on which no response information has been marked, using a scanning method that detects substantially all visual information present on the form document and produces a pixel image thereof and storing that pixel image data in a computer storage device.  Additional steps comprise scanning at least one copy of the same form document that has been marked with at least one response mark that absorbs light falling outside the visible spectrum, using a scanning method that detects only the presence of light outside the visible spectrum and that produces a pixel image of said at least one response mark, then compressing that pixel image to reduce the amount of pixel data used to represent areas of the form document bearing no response marks and storing the compressed pixel image data in a computer storage device. The visual scan pixel image and the image resulting from a scan for response marks can be merged together to produce a signal image that is comparable in quality and appearance to an image from a single, conventional visual-mode scan.
Patent CA-2044968-A1 (CA)
Title: Screwing and unscrewing adapter of threaded bonding element
Inventor: FRIZOT ALAIN
IPC: B23P19/06
Filed: 1991-06-19
Abstract: The adaptor for screwing or unscrewing a thread connecting element (2), comprising a body (10) joined, at its upper end, to a unit (1) for driving the body (10) in rotational and translational movement comprises an arrangement for centering the body (10) on the threaded connecting element (2), an interconnection between the body (10) and the threaded connecting element (2) in terms of rotational and translational movement, means for temporarily interconnecting in terms of rotational movement the means for connecting in terms of translational movement and the body (10), and a hydraulic distributor (18) mounted on the body (10).
Patent CA-2047496-A1 (CA)
Title: Benzimidazoles, pharmaceutical compositions containing these compounds and processes for preparing them
Inventor: NARR BERTHOLD
IPC: A61K31/55
Filed: 1991-07-22
Abstract: The invention .relates to benzimidazoles of formula I (see formula I) their 1-, 3-isomer mixtures, and the salts thereof, wherein the substituents R1, R2, R3 and R4 are preferably as follows: R1 in the 6-position represents a 1-methylbenzimidazol-2-yl, 3,4,5,6-tetrahydro-phthalimino, 2,3-diphenyl-maleic acid imido, 2,3-dimethyl-maleic acid imido, N-phenylmethanesulphonyl.-methylamino, 2-oxo-pyrrolidin-1-yl, 2-oxo-piperidin-1-yl, 2-oxo-hexamethyleneimino, 2-oxo-3, 4-tetramethylene-pyrrolidin-2-yl, 3,3-dimethylglutarimido, N-methylaminocarbonyl-n-pentylamino, propanesultam-1-yl or butanesultam-1-yl group; R2 represents a methyl, ethyl, n-propyl or n-butyl group; R3 represents a carboxy or 1H-tetrazolyl group; and R4 represents a hydrogen atom. These compounds have valuable properties, in particular as angiotensin-II antagonists.
Patent CA-2050632-A1 (CA)
Inventor: CHANG DONALD C D
IPC: H01Q3/26
Filed: 1991-09-04
Abstract: An efficient digital beam-forming network (100) utilizing a relatively few small-scale A/D converters is disclosed herein. The inventive beam-forming network (100) is disposed to generate an output beam B in response to a set of N input signals. The set of input signals is provided by an antenna array (110) having N elements, upon which is incident an electromagnetic wavefront of a first carrier frequency. The present invention includes an orthogonal encoder circuit (170) for generating a set of N orthogonal voltage waveforms. A set of biphase modulators (162-168) modulates the phase of each of the input signals in response to one of the orthogonal voltage waveforms, thereby generating a set of N phase modulated input signals. The N phase modulated input signals are combined within an adder (180) to form a composite input signal. The inventive network (100) further includes a downconverting mixer (184) for generating an IF input signal in response to the composite input signal. The IF input signal is then separated into baseband in-phase and quadrature-phase components by an I/Q split network 192. A pair of A/D converters (198, 200) then sample the in-phase and quadrature-phase components of the input signal. A decoder (202), coupled to the orthogonal encoder circuit (170), provides decoded digital in-phase signals and decoded digital quadrature phase signals in response to the digital in-phase and quadrature-phase signals. The present invention further includes a digital beam-former (130) for generating the output beam B by utilizing the decoded in-phase and quadrature-phase signals.
Patent CA-2053042-A1 (CA)
Title: Valve position sensing circuit
Inventor: HWANG EDWARD Y
IPC: F16K37/00
Filed: 1991-10-09
Abstract: The present invention provides a method and corresponding apparatus for detecting open and short circuit faults in a valve position sensor. According to one aspect of the invention, a fuel or steam valve (2) in a turbine system is automatically opened and closed by a positioner/sensor combination (1, 36, 32). In the event a fault occurs in the position sensing circuitry, a fault signal is immediately produced which allows appropriate action to be taken, e.g., closing the valve, before the turbine is damaged.
Patent CA-2053055-A1 (CA)
Inventor: MIZUNO TSUKASA
IPC: H01L23/433
Filed: 1991-10-09
Abstract: In a liquid cooling system for a printed circuit board on which integrated circuit packages are mounted, heat sinks are secured respectively to the packages in heat transfer contact therewith. Nozzles are provided in positions corresponding to the heat sinks. A housing is tightly sealed to the printed circuit board to enclose the packages, heat sinks and nozzles in a cooling chamber. A feed pump pressurizes working liquid cooled by a heat exchanger and supplies the pressurized liquid to the nozzles for ejecting liquid droplets to the heat sinks. A liquid suction pump is connected to an outlet of the housing for draining liquid coolant to the heat exchanger and a vapor suction pump is connected to a second outlet of the housing for sucking vaporized coolant to the heat exchanger. The cooling chamber is maintained at a sub-atmospheric pressure to promote nucleate boiling of the working fluid.
Patent CA-2053219-A1 (CA)
Title: Gelatin tampon applicator
Inventor: ENS AUDREY H
IPC: A61F13/26
Filed: 1991-10-10
Abstract: ABSTRACT     Some intravaginal absorbent devices (tampons) use disposable applicators as part or their product. Most frequently these applicators are made of plastic or cardboard materials. In this invention, the applicator is made of GELATIN. The GELATIN applicator would adapt to any current applicator design. Unlike current designs, this applicator would be made from organic material which is easily rendered from animal byproducts, and disintegrates in water or soil with no harm to the environment.
Patent CA-2057176-A1 (CA)
Title: Breathing mask construction
Inventor: ANDRESEN JENS
IPC: A62B18/02
Filed: 1991-12-06
Abstract: BREATHING MASK CONSTRUCTION               ABSTRACT OF THE DISCLOSURE A breathing mask fox use with a respirator for supplying breathing air to the wearer comprises an outer mask body which has a sealing frame which is engageable around the periphery of the wearer's face and defines a full mask engaged peripherally with the frame.  An inner mask is defined within the outer mask and has a peripheral sealing flange engageable with the wearer's face around the nose and mouth.  It has a connection piece extending through the full mask.  A space is defined between the inner mask and the outer mask which is capable of remaining under positive pressure and is at least partially sealed against the ambience by the sealing frame.  The seal of the inner mask also seals the surface in respect to the wearer's nose and mouth. A check valve is provided permitting flow from the inner mask to the outer mask upon the pressure in the inner mask exceeding a predetermined amount.  The method of insuring the secure seal of a person's respiratory system against ambience when wearing a respiratory mask having an inner mask portion connected to a respirator and having a breathing gas supply and an outer mask arranged over the inner mask comprises sealing the outer mask to the wearer's face so that only a minimum amount of leakage of air from the space between the mask leaks to the atmosphere, sealing the inner mask to the person's face within the outer mask and around the nose and mouth of the person and, during respiration from the respirator discharging a portion of the breathing air into the space between the inner and outer masks.