baber/WOPTO huggingface dataset:
Patent CA-1297897-C (CA)
Title: Liquid copolyester plasticizers derived from 1,4-butanediol and a dicarboxylic acid mixture
Inventor: MERTZ WILLIAM J
IPC: C08L27/06
Filed: 1987-06-18
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE           Liquid copolyesters useful as plasticizers for vinyl resins are provided.  The copolyesters are obtained by the esterification of specific aliphatic dicarboxylic acid ester mixtures with 1,4-butanediol and an aliphatic saturated monofunctional alcohol.  The copolyesters have acceptably low solidification points; they are resistant to hydrocarbon extraction; and they impart good low-temperature flexibility to PVC compositions plasticized therewith.
Patent CA-1339879-C (CA)
Inventor: MIYAJIMA TOORU
IPC: C08F2/32
Filed: 1987-06-30
Granted: 1998-05-26
Abstract: The present invention relates to a high water-absorptive resin emulsion in which fine particles of an ionic resin having a low crosslinking density are dispersed in an oil, and the above emulsion can be prepared by a reversed phase emulsion polymerization of ionic water-soluble monomers in the oil.
Patent CA-1300475-C (CA)
Title: Electrostatic flocking apparatus
Inventor: ABE MASAAKI
IPC: B05C19/00
Filed: 1987-07-24
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE     There   is   provided   an   electrostatic   flocking apparatus which comprises a flocking chamber, an air flow producing means for supplying and discharging air into and out of said flocking chamber, a filter means for allowing the air out of the flocking chamber, but preventing the fibers from discharging out of the chamber, an air box at the bottom of the flocking chamber and having a perforated board or wire mesh,  an electrode means,  power sources electrically connected to the electrode means, a support means for supporting the work and a conveying means for conveying the work into and out of the flocking chamber.
Patent CA-1282872-C (CA)
Title: Circuit containing integrated bipolar and complementary mos transistors on a common substrate
Inventor: NEPPL FRANZ
IPC: H01L27/06
Filed: 1987-08-11
Granted: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE       A circuit which contains integrated bipolar and complementary MOS transistors, including wells in the substrate for forming the MOS transistors, the wells also containing isolated bipolar transistors, the wells forming the collector of the bipolar transistor and being surrounded by trenches which are filled with doped polycrystalline silicon.  The doped trench reduces the lateral outward diffusion from the wells and thus serves to increase the packing density while serving as a collector terminal region.  The invention is employed in the manufacture of integrated semiconductor circuits having high switching speeds.
Patent CA-1308847-C (CA)
Title: Catalyst composition and olefin/co copolymerization process
Inventor: DRENT EIT
IPC: B01J31/18
Filed: 1987-09-16
Granted: 1992-10-13
Abstract: ABSTRACT                     POLYMER PREPARATION       Process for the preparation of polymers, characterized in that a mixture of carbon monoxide with one or more olefinically unsaturated compounds is polymerized at a temperature below 115°C by using a catalyst composition based upon a)  a palladium compound, b)  an anion of an acid with a pKa of from 2 to 4, and c)  a bidentate ligand of the general formula R1R2M-R-MR3R4, wherein M represents phosphorus, arsenic or antimony, R1, R2, R3 and R4 are similar or dissimilar hydrocarbyl groups, and R represents a bivalent organic bridging group containing at least two carbon atoms in the bridge.
Patent CA-1336372-C (CA)
Inventor: HAYASHI KATSUMI
IPC: D06M101/16
Filed: 1987-10-28
Granted: 1995-07-25
Abstract: A process for improving the flame retardancy, hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble monomer and an organic halogen-containing hydrophobic carrier compound at a temperature of between about 40°C to 100°C.  Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a polymer evenly disposed on the substrate.  The flame retardancy, hygroscopic, soil release and other surface properties of the substrate are thereby improved.  The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent.  The invention also pertains to the improved substrates prepared in accordance with the present process.
Patent CA-1305267-C (CA)
Title: Aqueous silicone dispersions
Inventor: GAMON NORBERT
IPC: C08J3/02
Filed: 1987-11-03
Granted: 1992-07-14
Abstract: Docket No. Wa-8620 Paper No. 1 AQUEOUS SILICONE DISPERSIONS               Abstract of the Disclosure Aqueous silicone dispersions containing (a) poly-diorganosiloxanes having hydroxyl groups in the terminal units, (b) (organo)metallic compound(s), (c) a siliconate, and optionally, (d) a silicone resin.          These aqueous silicone dispersions will cure to form elastomeric coatings or sealants when the water is removed by evaporation.
Patent CA-1290433-C (CA)
Title: Method and system for correcting random walk errors induced by rate reversals in a dithered ring laser gyroscope
Inventor: BENOIST RODNEY W
IPC: H01S3/083
Filed: 1987-12-14
Granted: 1991-10-08
Abstract: METHOD AND SYSTEM FOR CORECTING RANDOM  WALK ERRORS INDUCED BY RATE REVERSALS   IN A DITHERED RING LASER GYROSCOPE       ABSTRACT OF DISCLOSURE A correction to the output angle of a ring laser gyroscope is calculated as a function of the phase difference and the magnitude of coupling between the two counterpropagating beams when the dither oscillations change direction. A pair of heterodyne detectors produce heterodyne signals indicative of the interference pattern between the counterpropagating beams. A signal indicative of the sum of the separate beam intensities is demodulated with the heterodyne signals to determine the magnitude of coupling between the beams in the ring laser gyroscope.
Patent CA-1286369-C (CA)
Inventor: LABROT MAXIME
IPC: H05H1/42
Filed: 1988-04-29
Granted: 1991-07-16
Abstract: Method and device for injecting at least one stream of a fluid into a hot gaseous flow, such as a plasma jet. 
<??>According to the invention,
 - the shape of an envelope of revolution (6) is imparted to the said hot gaseous flow (2); and - the fluid-stream injection nozzle (7) is arranged coaxially with the axis (X-X) of the said envelope of revolution (6). 
<??>Plasma chemistry. 
<IMAGE>
Patent CA-1326624-C (CA)
Inventor: LICHT STEVEN J
IPC: C30B19/02
Filed: 1988-05-24
Granted: 1994-02-01
Abstract: LIQUID-PHASE-EPITAXY DEPOSITION METHOD    IN THE MANUFACTURE OF DEVICES            Abstract Epitaxial layers are grown from a body of molten material which includes flux and layer constituent components; included in the flux are lead oxide and a small amount of boron trioxide. As compared with prior-art processing in the absence of boron trioxide, enhanced yield is realized as believed to be due to reduced adhesion of solidifying material entrained upon withdrawal of a substrate after growth. The method is particularly useful in the manufacture of magnetic domain devices designed to operate at extreme temperatures, as well as in the manufacture of magneto-optic devices such as, e.g., switches, modulators, and isolators.
Patent CA-1318516-C (CA)
Inventor: SAKUMA KAZUHIRO
IPC: G01P15/13
Filed: 1988-06-08
Granted: 1993-06-01
Abstract: Abstract' An accelerometer is composed of a pair of housings each of which forms a magnetic structure together with a permanent magnet and a flapper flexurally supported by hinge portions between the magnetic structures.  The  permanent magnet is secured to the housing of the magnetic structure by means of a spacer so as to prevent  a harmful thermal stress which will be caused by the difference of thermal expansion between the magnet and the housing.  A bobbin with a torquer coil is secured to the flapper by means of a base member to take no effect of thermal stress which will be caused by the difference between the materials of the bobbin and the flapper.  The above elements are housed in a case  which is installed in an instrument board so as to be unaffected by changes in temperature in surroundings of the accelerometer.
Patent CA-1310977-C (CA)
Inventor: DAKKA JIHAD
IPC: C07C51/265
Filed: 1988-07-22
Granted: 1992-12-01
Abstract: ABSTRACT OF THE DISCLOSURE        A process for the manufacture of benzoic acid is described.  The process  is  based  on  the  reaction  of toluene  in  a  liquid  phase  oxidation  with  an oxygen containing  gas in  the  presence  of  a  phase-transfer catalyst (a), a transition metal salt (b) and traces of a polar solvent, such as water, the molar ratio between (a) and  (b)  being  in the range of between 0.25:1 to 1.5:1 The phase-transfer catalyst is selected  from  quaternary ammonium  and  phosphonium  salts  having  a total carbon atoms in the range of 17 to 58, the anion  bound  thereto being  selected from Br-, F-, Cl-, OH-, CH3COO- or HSO4-.          The benzoic acid produced is characterized  by  its  very high purity and high conversion reaching generally values of above 95%.
Patent CA-1282290-C (CA)
Title: Nesting basket for ducks and method of using same in wilderness
Inventor: SANBORN CLINTON B
IPC: A01K31/14
Filed: 1988-08-02
Granted: 1991-04-02
Abstract: ABSTRACT      A nesting basket for ducks or the like comprises a conical structure made of galvanized wire mesh and supported at its narrower end on top of a rod adjustable in height above the water surface.  The nesting basket is used by placing therein a wreath of preferably brome hay, tying the wreath to the wire mesh, and packing the center loosely with hay, straw, or the like.
Patent CA-1295672-C (CA)
Title: Quasi-resonant current mode power conversion method and apparatus
Inventor: DIVAN DEEPAKRAJ M
IPC: H02M5/458
Filed: 1988-10-07
Granted: 1992-02-11
Abstract: QUASI RESONANT CURRENT MODE POWER CONVERSION METHOD AND APPARATUS               ABSTRACT OF THE DISCLOSURE   An inverter has a resonant circuit composed of a parallel connected inductor and capacitor and a filter capacitor connected in series with the inductor which has a capacitance substantially greater than the resonant capacitor.  A half bridge or full bridge switching circuit formed of pairs of gate controlled switching devices is connected to a DC power supply and to the resonant circuit and filter capacitor, with the switching devices being switched to provide a relatively high frequency, e.g., 20 KHz or higher, resonant current in the resonant circuit. The filter capacitor is of a size such that the high frequency component of the current flowing in the resonant circuit does not result in a substantial voltage at the switching frequency appearing across the filter capacitor.  In addition to the high frequency switching current in the resonant circuit, the switching frequency and the duration of switching is adjusted in a controlled manner such that a lower frequency AC component appears in the current flowing in the resonant circuit and through the filter capacitor such that a voltage at the lower frequency component appears across the filter capacitor.
Patent CA-1331545-C (CA)
Title: Steam turbine preservative and method of preserving steam turbine components
Inventor: BELLOWS JAMES C
IPC: F01D5/28
Filed: 1988-11-14
Granted: 1994-08-23
Abstract: ABSTRACT           A steam turbine preservative and method of preserving steam turbine components involves the application of an amine polymer as a non-aqueous layer to the surfaces of such components.  An organic solvent is mixed with the amine polymer to adjust its application viscosity.
Patent CA-1288819-C (CA)
Title: Acknowledge back pager with frequency control apparatus
Inventor: SIWIAK KAZIMIERZ
IPC: H01S3/0943
Filed: 1988-11-15
Granted: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE    An acknowledge back (ack-back) pager is provide for use in a paging system which includes a central station which transmits a group of message signals to a group of ack-back pagers which are addressed as a group.  The users of the group of addressed ack-back pagers indicate a response to their respective pagers thus providing ack-back data.  The pagers in the group of addressed ack-back pagers then simultaneously transmit back to the central station their ack-back data on different frequency sub-bands, a different frequency sub-band being allocated to each of the pagers in the group.  The invention provides apparatus for controlling the frequency of the selected sub-band with very high accuracy.
Patent CA-1301968-C (CA)
Title: Method for the control of the dispatch of elevator cars from the main stop during upward peak traffic
Inventor: SCHROEDER JORIS
IPC: B66B1/20
Filed: 1988-11-15
Granted: 1992-05-26
Abstract: Abstract of the invention In this method for the control of the dispatch of elevator cars from the main stop (MAIN STOP) of an elevator group consisting of at least one elevator, the transport capacity and the nominal time interval are computed according to the algorithm (CONTROLLER) implemented in the process computer (COMPUTER) dependent on the nominal departure load and the computed values deposited in the transport capacity field respectively in the interval field. From the data of the sensor (SENSOR), the elevator control (CONTROL.1) and the input/output unit (TERMINAL) the algorithm determines the traffic requirement at the main stop and the traf-fic requirement at the access car (CAR.1) where, the transport capacity is computed, dependent on the higher of the two traffic requirements.  Subsequently, the algorithm searches in the trans-port capacity field the nominal departure load corresponding to this transport capacity.  In analogous (or similar) manner the field component of the interval field, indexed with the nominal departure load is addressed and the value of the field component assigned to the nominal time interval.  As soon as the condition actual departure load = nominal departure load or the condition actual time interval = nominal time interval is satisfied, the dispatch of the access car takes place.
Patent CA-1329192-C (CA)
Title: Catalysts prepared from tetrakis (dialkylamide or diarylamide) derivatives of titanium and polymerization of olefins therewith
Inventor: HEFNER JOHN G
IPC: C08F4/652
Filed: 1988-11-30
Granted: 1994-05-03
Abstract: ABSTRACT         Ziegler-Natta catalysts for polymerizing .alpha.-olefins are prepared by the addition of tetrakis-(dialkylamide or diarylamide) derivatives of titanium, and a metal-containing reducing agent such as ethyl aluminum dichloride to a suitable support material such as magnesium chloride.  Olefin  are polymerized in the presence of these supported catalysts and an aluminum containing cocatalyst or activator such as triethyl-aluminum.
Patent CA-1302078-C (CA)
Title: Metal worker's 90 bend layout ruler
Inventor: GRAVEL JEAN-PIERRE
IPC: G06C3/00
Filed: 1989-02-03
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE    A novel layout ruler is provided to perform flat layout patterns directly on sheet metal stock, i.e. to mark the total length, or the shear cut size, of the sheet metal stock and to marls the sight line for bending the sheet metal stock.  The ruler includes a body member having a scale component drawn along its central longitudinal axis and a scale blade component provided with a plurality of spaced-apart transverse lines extending from at least one side edge of the body member.  The scale blade component includes: (i) one pair of spaced-apart lines representative of the inside bend radius (R); (ii) at least one pair of spaced-apart lines representative of the set back (SB);          (iii) one pair of spaced apart lines representative of the bend allowance (BA); and (iv) at least one pair of spaced-apart lines representative of the material deduction (MD).  Upon use of such ruler, as described herein, the total length of the sheet metal stock can be determined, and the sight line can be marked directly thereon.
Patent CA-1323867-C (CA)
Inventor: LAYNE BRUCE N
IPC: F21V29/15
Filed: 1989-02-16
Granted: 1993-11-02
Abstract: ABSTRACT OF THE DISCLOSURE         A  thermal  barrier  is  interposed  between  a lampholder assembly and a plug box assembly in a track lighting fixture.
Patent CA-1324546-C (CA)
Inventor: RYAN DANA W
IPC: A61M5/31
Filed: 1989-02-28
Granted: 1993-11-23
Abstract: ABSTRACT OF THE DISCLOSURE      Improved shielded medical devices which minimize accidental needlesticks of the skin by an exposed contaminated needle are provided.  The medical devices include a hollow inner tube body (10) and a telescoping outer shield (12).  The outer surface (71) of the inner tube has front and rear circumferential grooves (38, 36), with a shoulder (46) located forward of the front groove (38) and a ramp (52) located rearward of the front groove (38) and decreasing in diameter as it extends away from the front groove.  The shoulder (46) has a larger diameter than the ramp diameter adjacent the front groove and permits the shield (12) to be slided over the inner tube (10) without locking into the inner tube during assembly.  The outer shield (12) has two inwardly extending circumferential protrusions (34a, 34b) in proximate location to each other, and at least one outwardly extending gripping flange (87 or 28).  A first of the protrusions (34b) is located at the rear end of the shield and yieldlngly engages the rear groove (36) during use of the medical device, thereby permitting normal use of an exposed needle.  After needle contamination, the shield (12) is gripped by the thumb and forefinger of the practitioner and slid forward along the inner tube (10) until the forward inwardly extending protrusion (34a) of the shield slides up the ramp (52) and lockingly engages the front groove (38). The shield (12) is then locked relative to the inner tube (10) such that the needle is shielded.  With properly arranged gripping flanges (28 or 87), the shielding action may be accomplished with one hand.
Patent CA-1341000-C (CA)
Inventor: RAYUDU S RAO
IPC: A01N47/12
Filed: 1989-05-19
Granted: 2000-05-23
Abstract: A novel eater of carbamic acid useful in controlling the growth and proliferation of microorganisms. The novel compound is (see above formula) namely, 3-iodopropargyl ester of carbamic acid. The novel iodopropargyl ester of carbamic acid can be used in a method for inhibiting the growth of microorganisms in an aqueous system which comprises adding to the system the iodopropargyl ester in an amount effective to inhibit the growth of the microorganisms. The iodopropargyl ester of the invention can also be used in a method for inhibiting the formation of slime in an aqueous liquid, which comprises adding to the liquid the iodopropargyl ester in an amount effective to prevent the formation of slime. The compound of the invention has a number of advantages over the microbicides hitherto available. It is an excellent microbicide to be used for both preservation of paint while in the can and after application on the painted surface. It is hydrolytically stable over a wide pH range and can be used in both latex and oil based systems. It is soluble in many solvents, and may therefore be readily diluted for convenience of use.
Patent CA-1338170-C (CA)
Inventor: ANDRIOLLO NUNZIO
IPC: C12P1/06
Filed: 1989-06-13
Granted: 1996-03-19
Abstract: The  invention relates to a new mixture arbi-trarily called "AB-011 Antibiotics" which comprises all the components endowed with biological activity produced by fermentation of a new microorganism (Streptomyces s.p. NClB R629) in an aqueous nutrient.  The invention also relates to two Antibiotics called AB=011a and AB-011b, isolated from the above mentionned mixture, and to a process of obtention of the same.   These products present a high antifungal activity in particular against phytopathogenic fungi which infest   herbaceous,   arbus   cultural,   industrial   and horticultural cultivations.
Patent CA-1321552-C (CA)
Title: Filter arrangement
Inventor: MILLER JOHN D
IPC: B01D29/01
Filed: 1989-06-14
Granted: 1993-08-24
Abstract: Abstract:      The disclosure describes an arrangement which comprises a porous filter layer and a porous support layer.  The porous support layer has first and second surfaces and the porous filter layer is positioned near the first surface of the porous support layer. The filter arrangement further comprises several polymeric beads disposed in parallel strips on the second surface of the porous support layer.  The filter arrangement is corrugated to form pleats which extend generally perpendicular to the polymeric beads.  Each pleat includes an open end, a bight end, and first and second opposing sides which extend between the open end and the bight end and include a portion within each pleat in which the opposing sides are in essentially parallel relationship.  Each bead extends from the open end of the pleat along the first side to the bight end and from the bight end of the pleat along the second side to the open end.  The portions of each bead which extend along the opposing sides of the pleat are joined to one another.
Patent CA-1310238-C (CA)
Title: Sensory transmitting membrane device
Inventor: HAINES BERNARD M
IPC: A61F13/00
Filed: 1989-07-19
Granted: 1992-11-17
Abstract: ABSTRACT OF INVENTION       A device for the transmission and enhancement of tactile sensations transmitted across a barrier membrane, particularly condoms 9 finger cots and gloves used to prevent transmission of disease organisms between contacting body tissues.  The device has A plurality of antipodal pairs of projections extending through the barrier membrane whereby the barrier membrane acts as a fulcrum for the transmission of movement by one projection of an antipodal pair to the other member of the projection pair.
Patent CA-1329490-C (CA)
Title: Automatic food frying and vending system
Inventor: OKADA KATSUMI
IPC: A47J37/12
Filed: 1989-09-22
Granted: 1994-05-17
Abstract: A  B  S  T  R  A  C  T      An automatic food frying and vending system which is so constructed that a storage chamber for storing therein the food material to be fried in their frozen state and a frying chamber for frying the material in cooking oil are installed in the main body of the automatic food frying and vending system in a discrete sections designated for their respective purposes; then a stocker for receiving and keeping a large number of packed containers, each having lid or cover, of the abovementioned food material to be fried is provided in the abovementioned storage chamber; a carrying means for taking out, one by one, from the storage chamber each container of the food material to be fried which has so far been housed in the stocker, and transporting and feeding means for receiving thereon the container of the food material to be fried, as taken out of the storage chamber by the carrying means, opening the sealed cover of the container, and forwarding the food material to be fried into the frying chamber.
Patent CA-1294000-C (CA)
Inventor: HARRIS ARLENE J
IPC: H04W4/24
Filed: 1990-08-01
Granted: 1992-01-07
Abstract: ABSTRACT        Cellular mobile telephone stations which are intended for installation and use in public transportation facilities, e.g., taxicabs, limousines, rental cars, etc. are equipped to support credit card billing of transient customers for use of the station services.  The cellular pay stations, from the viewpoint of the serving cellular carrier facilities, are indistinguishable from standard cellular mobile stations.        The activities of the credit card stations are supported by an administrative processor which is connected to a standard telephone line of the public switched telephone network.  The cellular stations and the administrative processor exchange data messages over a standard telephone connection.          The data messages are used to establish operating options and parameters of the credit card mobile stations, compile records in the administrative processor to permit the assignment of billing responsibility to transient customers for use of the stations and connected facilities, and control the stations for administrative and commercial reasons.