baber/WOPTO huggingface dataset:
Patent CA-2014535-A1 (CA)
IPC: G11B27/30
Filed: 1990-04-12
Abstract: An apparatus for recording and reproducing information on and from an optical disk is disclosed in which at least one optical beam and a reference clock signal are used.  The optical disk comprises recording tracks which are divided into a plurality of blocks and concentrically arranged along the radial direction. The apparatus comprises: a block judging unit for judging one of the blocks that the one block is currently impinged by the optical beam; a clock signal generator for generating a plurality of clock signals which are different in frequency from each other; and a clock signal selecting unit for selecting one of the clock signals as the reference clock signal, on the basis of the judgment of the block judging unit.
Patent CA-2015678-A1 (CA)
Title: N-acryloylpiperazine derivatives, their preparation and their use as paf antagonists
Inventor: NAKAMURA NORIO
IPC: C07D215/14
Filed: 1990-04-27
Abstract: ABSTRACT OF THE DISCLOSURE     Compounds of formula (I):                ( I ) [in which R1 and R2 is each -R5, -CH=CH-R5 or -C?C-R5, in which R5 is optionally substituted aryl or aromatic heterocyclic; R3 is hydrogen, alkyl, cyano or -R5; X is oxygen or sulfur; A is 1,4-piperazin-1,4-diyl or a 1,4-homopiperazin-1,4-diyl; B is alkylene, carbonyl, thiocarbonyl, sulfinyl or sulfonyl; and R4 is optionally substituted phenyl] and pharmaceutically acceptable salts thereof have valuable PAF antagonist activity, and may be prepared by reacting a compound containing the piperazine or homopiperazine part of the molecule with a compound containing the other part of the molecule.
Patent CA-2017311-A1 (CA)
IPC: A47L5/38
Filed: 1990-05-22
Abstract: This apparatus is of the type comprising box 2, a motorized suction turbine 4, connected pneumatically to the outlet orifice 2b of the box, and at least one pipe 6 whose downstream end 6a opens into the box 2, means 13-40 connected to the upstream end 6b of the pipe 6 which are capable of generating a temporary pneumatic pressure wave in the direction of its downstream end 6a, the latter being coupled with means 20-22 of detecting the pressure wave and of reacting on the control unit 23 of the power supply of the electric motor 3 of the suction turbine 4 for putting the installation into operation. 
<??>According to the invention, the pneumatic pressure wave is carried by the pipe 6 itself from its upstream end 6b to its downstream end 6a, this downstream end being fitted with a closing valve 18, normally kept in the closed position and capable of releasing the opening of the pipe under the effect of the suctional reduced pressure. 
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Patent CA-2020659-A1 (CA)
Inventor: NOTTEN PETRUS H L
IPC: H01M4/58
Filed: 1990-07-06
Abstract: The invention relates to an electrochemical cell comprising a negative electrode of a stable hydride-forming material, in which a large loading capacity at low temperature is obtained by the addition of a catalytic material of the type DE3, wherein D is one or more of the elements selected from Cr, Mo and W, and wherein E represents Ni and/or Co.      The catalytic material can be provided in the form of a eutectic segregation or it can be provided at the surface of powdered hydride-forming material by means of an electrochemical reaction.
Patent CA-2021059-A1 (CA)
Title: Process for encapsulation of biologicals
Inventor: BARNES ANDREW C
IPC: A61K36/06
Filed: 1990-07-12
Abstract: Abstract of the Disclosure Disclosed is a process for encapsulation of biologicals. Specifically, microbes which have produced useful proteins, which are maintained intracellularly, are stabilized by treatment of the intact microbe with organic acids, inorganic acids, or oxdizing agents.
Patent CA-2022239-A1 (CA)
Title: Programmable fault insertion arrangement and method
Inventor: NAMITZ WALTER J
IPC: G01R31/28
Filed: 1990-07-30
Abstract: A PROGRAMMABLE FAULT INSERTION ARRANGEMENT AND METHOD               ABSTRACT    A method for controlling a fault insertion circuit is disclosed that is arranged to generate and apply a fault signal to a digital circuit under test.  First, a prompt request command is transmited to the fault insertion circuit from the data terminal.  The fault insertion circuit receives the prompt request command and transmits to the data terminal a hardware fault response character if a hardware fault has been detect-ed, or a configuration status response character.  An insertion command and fault instruction data is trans-mitted to the fault insertion circuit from the data terminal in response to the configuration status re-sponse character.  The fault insertion circuit receives the insertion command and fault instruction data and ascertains if the insertion command and the data instruction are valid.  If the command or the instruction are invalid, then an appropriate invalid command response character is transmitted to the data terminal.  When the insertion command and instruction data are valid, the fault insertion circuit induces a fault to the digital circuit under test in accordance with the parameters of the data instruction.  Finally, a completed response character is transmitted to the data terminal from the fault insertion circuit when the insertion command is successfully completed.
Patent CA-2023278-A1 (CA)
Inventor: GOELA JITENDRA S
IPC: C23C16/458
Filed: 1990-08-15
Abstract: ABSTRACT OF THE DISCLOSURE     A method of preventing backside growth on substrates in a vapor deposition system wherein the substrate (10) is mounted on a plurality of graphite pillars (16) with the pillars being bonded to the substrate as near theperiphery thereof as possible. A hollow body (14) open on one side but closed on the other, and fabricated from flexible graphite suitably with graphite cement used as a bonding agent, is mounted on the pillars with the open end facing the substrate. The open end of the hollow body is pressed against the substrate and sealed with a bonding agent. This completely covers the backside of the substrate and thus prevents any vapor deposition thereon. Vapor deposition occurs, however, on the outer surface of the hollow graphite body. Since the graphite is quite flexible, the material coated or deposited thereon, for example silicon (Si), is readily broken into small pieces by using a piercing tool and a pair of pliers. Cracks developed in the coated hollow body do not propagate to the substrate because the substrate is perpendicular to the body, and the flexible graphite deforms as stresses develop due to material growth and thermal expansion mismatch.
Patent CA-2024134-A1 (CA)
Inventor: GOTTSCHO RICHARD A
IPC: H01L21/306
Filed: 1990-08-28
Abstract: Abstract of the Disclosure Hydrogen Plasma surface passivation of III-V Semiconductors is critically dependent on exposure time and pressure because of competition between plasma passivation and damage. Proper control of pressure according to the invention yields reproducible and stable passivation. Improved passivation is obtained using high pressure hydrogen plasmas, i.e. above 1 Torr.
Patent CA-2024589-A1 (CA)
Title: Cleaning compositions and applications thereof
Inventor: SUGITA MASARU
IPC: C11D7/50
Filed: 1990-09-04
Abstract: ABSTRACT OF THE DISCLOSURE           A cleaning composition which comprises dimethylcyclo-octadiences is disclosed.  there is further disclosed a method of cleaning printed circuit boards or printed wiring boards, which comprises:  contacting the board with a composition comprising diemthylcyclooctadienes and 2-20 % by weight of a surfactant; rinsing the board with water; and drying board.
Patent CA-2026952-A1 (CA)
Title: Cooling means for overhead cam engine
Inventor: HUDSON ERIC B
IPC: F02B63/02
Filed: 1990-10-04
Abstract: ABSTRACT           An air-cooled internal combustion engine includes a crankcase, a crankshaft disposed within the crankcase and extending externally thereof, and a cylinder extending from the crankcase and having a piston mounted for reciprocation therein and connected to the crankshaft.  A cylinder head is connected to the cylinder and includes an overhead camshaft disposed therein, with the camshaft extending externally of the cylinder head.  A drive pulley is mounted to the crankshaft externally of the crankcase, and a cam pulley is mounted to the camshaft externally of the cylinder head.  A drive belt positively engages the drive pulley and the cam pulley for transmitting rotary motion therebetween.  The cam pulley includes integral fan blades for directing air axially toward the cylinder head upon rotation of the cam pulley.  The cylinder head includes an intake valve, an exhaust valve, and an air passageway extending therethrough substantially parallel to the camshaft.  The air passage is located between the intake and exhaust valves and between the camshaft and the cylinder.
Patent CA-2027626-A1 (CA)
Title: Silicone primer compositions
Inventor: KOSAL JEFFREY A
IPC: C08K5/5425
Filed: 1990-10-15
Abstract: SILICONE PRIMER COMPOSITIONS                       ABSTRACT           Silicone primer compositions comprising the reaction product of a resinous copolymeric siloxane and an organosilane are disclosed.  The compositions find particular utility in promoting the adhesion of curable silicone coating compositions, comprising a liquid copolymeric organopoly-siloxane and a polydiorganosiloxane, to solid substrates. Priming metal substrates with the certain compositions of the present invention additionally imparts improved corrosion resistance thereto when the substrates are subsequently coated with the above mentioned silicone coating compositions.
Patent CA-2032382-A1 (CA)
Title: Process for producing dental restorations and a positive working model for implementing the process
Inventor: RHEINBERGER VOLKER
IPC: A61C19/10
Filed: 1990-12-17
Abstract: Abstract Process  for  producing  dental  restorations  which  are exactly matched in shape and in color, especially crowns, and for a positive working model that can be used for this purpose.
Patent CA-2036379-A1 (CA)
Title: Method for the recovery of zinc, copper and lead of oxidized and/or sulfurized ores and materials
Inventor: LIMPO GIL JOSE L
IPC: C22B13/10
Filed: 1990-06-22
Abstract: ABSTRACT: Method for the recovery of zinc, copper and lead of oxidized and/or sulfurized ores and materials from various feedstocks by lixiviation with a concentrated solution of sal ammoniac, resulting in the formation of the corresponding amines, and separation of those metals fromt he fertile solution obtained by means of organic acid extractants (cationic extractants and/or cholators) which are neutralized by the  amine regenerating the original solution of sal ammoniac.  The copper and zinc which separately have passed the corresponding organic phase are reextracted therefrom taking advantage of the sulphuric acid obtained in the electrolysis of the corresponding solution.  The lead is separated by crystallization and obtained in the form of chloride.
Patent CA-2036395-A1 (CA)
Title: Walker crutch combination
Inventor: YARBROUGH GLEN A
IPC: A61H3/00
Filed: 1991-02-15
Abstract: ABSTRACT OF THE DISCLOSURE    A combination invalid walker and crutch which includes a four-leg walker base having a pair of horizontally oriented hand grips which enable the base to be used as a conventional walker and to which a pair of vertically adjustable underarm crutch supports are selectively mounted to thereby enable the apparatus to be used as a walker while providing the underarm support of a crutch.
Patent CA-2038261-A1 (CA)
Inventor: MILLINER KENNETH M
IPC: A24D3/02
Filed: 1991-03-14
Abstract: A device for receiving and transferring cylindrical filter rods one at a time from a mass flow of filters.  The receiving and transferring device is used to remove filter rods from the mass flow of filter rods to conduct, for example, quality control checks on the filter rods without interrupting production of the filter rods.
Patent CA-2038802-A1 (CA)
Title: Reflective overhead projector with alternate light sources
Inventor: DREYER JOHN F JR
IPC: G03B21/132
Filed: 1991-03-21
Abstract: A reflective overhead projector is provided with two lamps for the purpose of allowing change from one to the other of the lamps in the event of expiration of the lamp in use. The lamps are arranged to face the center of a circle at which is positioned a rotatable planar mirror which may be turned to direct light from a desired one of the two lamps. An electrical switch senses the position of the mirror and directs electrical power to the appropriate lamp.
Patent CA-2044702-A1 (CA)
Title: Computer system chinese input method and related keyboard structure
Inventor: GAO HENRRY
IPC: G06F3/023
Filed: 1991-06-14
Abstract: Computer system Chinese input method and the related keyboard structure ABSTRACT OF THE DISCLOSURE:     A  computer  system  Chinese input method, by taking apart  every  Chinese  character  into codes and then taking a head  and an end code therefrom  for rapid keyboard input, and characterized  in  that:          (1)  Original  Chang  Jei  Codes  and  key positions remain   unchanged   with  additional  twenty  two  codes  for supplement;          (2)  For  the  Chinese characters which can be taken apart  into upper and lower or left and right codes, take the left,  the  upper  or  the  upper left code as a head code for each  character  and  the right, the lower or the lower  right code  as  an  end  code  for  each character; For the  Chinese characters  which  can not be taken apart into upper and lower or  left  and  right codes, take the outer code as a head code and the inner code at the lower right as an end code;          (3)  Exacxt  codes  or  very  similar  codes  can be found   on   the   keyboard,   little  variation  exists,  and therefore,  no radical chart is required to help remember the codes:          (4)  Specific  keys  are designated for direct input of the special routine characters " ? "," ? " and "?".          (5)  Quick  input  is  provided for  specific terms, idoms,  address  and  phrases  by inputting the head code from each  character  or  the head code from each of the first four characters; and (6)  Arrangement  of  codes  and  patterns  is  made according  to  the  relative  position  of a code in the whole pattern  of a Chinese character or according to the similarity in  pattern  or  meaning  relative  to the patterns or symbols orignally  marked  on the keys of a keyboard.
Patent CA-2045700-A1 (CA)
Title: Muffler assembly
Inventor: RICHARDSON LARRY E
IPC: F01N1/06
Filed: 1991-06-26
Abstract: A muffler far reducing noise associated with exhaust systems includes an assembly of exhaust tubes and drop-in baffles fixed inside channels defined in a clamshell-type muffler chamber formed from two stamp-formed mating external shells.
Patent CA-2047477-A1 (CA)
Title: Colored cellulosic casing with clear corridor
Inventor: QUINONES XAVIER J
IPC: A22C13/00
Filed: 1991-07-19
Abstract: A sausage casing comprising an elongated cellulosic tube having less than about 100 wt. % moisture based upon the bone dry weight of cellulose and having first and second longitudinal portions, and a colorant or opacifier which is longitudinally and continuously dispersed throughout the wall of at least one of these portions to provide it with different optical properties which are useful e.g., for quality control and identification of color development, meat type and particle definition and/or to provide an attractive package appearance.  In a preferred embodiment, a sausage is encased where the surface area of the second portion is less than or equal to the first portion and these portions are visually different having measurable L,a,b and opacity values such that:   i)   an average opacity value of the first portion is at least about 0.5 greater than that for the second; or ii)  the difference in average opacity between the first and second portions is less than 10, and a difference of at least about 5 exists between the first and second portions in their L,a, or b values; or iii) there is a difference of at least about 10 in average opacity between the first and second portions, and the sum of the absolute values of a and b of the first portion is at least 10.
Patent CA-2049000-A1 (CA)
Title: Metering valve for dispensing aerosols
Inventor: SCHMIDT WILLIAM J
IPC: B65D83/44
Filed: 1990-03-07
Abstract: A metering valve assembly (10) for dispensing measured quantities of an aerosol from a pressurized container (11) comprises a housing (20) constructed for sealed attachment to a pressurized container and having therein a partition wall (52) of resilient material enclosing a metering chamber (55). An operating member (25) is supported in the housing for movement between charging and dispensing positions. In the charging position of the operating member, a charging connection is established between the interior of the pressurized container (11) and the interior of the metering chamber (55) to fill the chamber with a pressurized charge. In the dispensing position of the operating member, the metering chamber (55) is shut off from the interior of the container and connected to a dispensing outlet (44), whereupon the pressure within the container will collapse the resilient partition wall (52) and thereby force the contents of the metering chamber to the dispensing outlet. This valve assembly is also effective, in the dispensing position of the operating member, to charge the container with pressurized aerosol by connecting its dispensing outlet to a supply source from which pressurized aerosol enters the container by expanding the inner end (56) of the resilient partition wall to create an opening through which it flows into the interior of the container.
Patent CA-2051435-A1 (CA)
Title: Safflower products and methods for their production
Inventor: BERGMAN JERALD W
IPC: A01H5/10
Filed: 1991-02-08
Abstract: The present invention relates to a safflower seed, a safflower plant, a safflower oil, a safflower seed product, a safflower variety and a method for producing a safflower seed. More specifically, the invention relates to a safflower seed having either (a) an oleic acid content of about 80 % or greater or (b) a linoleic acid content of about 80 % or greater, relative to the total fatty acid content of the seed when the seed is produced at a mean temperature of about 70 °F. The oil is derived from said seed and the safflower plant produces said seed.
Patent CA-2051840-A1 (CA)
Title: Method of treating respiratory distress
Inventor: OOMS LEO A A
IPC: A61K31/505
Filed: 1991-09-19
Abstract: ABSTRACT           METHOD OF TREATING RESPIRATORY DISTRESS     Method of treating mammals suffering from respiratory distress comprising administering an effective amount of metrenperone.
Patent CA-2054002-A1 (CA)
Title: Flexure-controlable roll
Inventor: KUESTERS KARL-HEINZ
IPC: F16C13/00
Filed: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE      A driven, deflection-controlled cylinder includes a stationary crosshead that is surrounded by a hollow cylinder.  The hollow cylinder has a projection that includes a bushing-like part which encloses the narrow end of the crosshead with a slight radial distance therebetween.  A bearing is arranged on the bushing-like part, which is supported in the axially outer part of a bearing bell that is arranged on the outer end of the crosshead.  A gear wheel is arranged between the bearing bell and the end of the hollow cylinder, and it engages with a drive pinion in a drive housing.  The drive housing is mounted on the side of the projection adjacent to the hollow cylinder, as well as on the outside of the axially outer part of the bearing bell that is opposite the drive pinion.
Patent CA-2054355-A1 (CA)
Inventor: BRAFF MARTIN
IPC: H04L12/56
Filed: 1991-10-28
Abstract: DATA CHANNEL SCHEDULING DISCIPLINE ARRANGEMENT AND METHOD          Abstract This invention is a method of and apparatus for implementing a service scheduling discipline to enable data devices efficient access to data resources. This method is based on sorting the received incoming data to a plurality of cycle queues and transmitting data by sequentially serving each cycle queue exhaustively. Data that cannot be placed in the cycle queues is temporarily placed in an overflow queue. The overflow queue data is subsequently sorted into the cycle queues and transmitted.
Patent CA-2055057-A1 (CA)
Title: Fast z buffer initialize and update method
Inventor: ALBAUGH VIRGIL A
IPC: G06T15/40
Filed: 1991-11-06
Abstract: FAST Z BUFFER INITIALIZE AND UPDATE METHOD                        ABSTRACT      A method is provided for initializing and updating a group of pixels contained on a display in blocks.   A group of pixels is considered as a block and has a status word associated therewith.  This status word maintains a running  total  of  the  maximum  z  value  of  any  pixel contained within a group, or block of pixels.   In this manner,  once a block of pixels is rendered on to the display  screen  a  comparison can be made  between the current pixels being displayed and a group of pixels which are to be displayed.  The minimum z value of the group of pixels to be displayed is compared with the maximum z value for the group of pixels currently being displayed.  If the current maximum z value, as stored in the status word, is less than the minimum z value for the pixels  to  be  displayed,  then  the  group  of  pixels currently being displayed will all "win" when compared to the pixels in the group to be displayed.  Thus, a full block bypass of the group of pixels to be displayed is implemented,   thereby  saving  considerable  time  and overhead when compared to conventional z buffer systems that compare z values for each individual pixel.
Patent CA-2055900-A1 (CA)
Inventor: ZYNER GRZEGORZ B
IPC: G06F7/53
Filed: 1991-11-20
Abstract: A binary integer multiplier including a plurality of adder stages, each of such adder stages including a plurality of cells equal to a number of bits in anoperand, each of such adder stage including a pair of full adders capable of receiving six input bits and producing two result bits at the significance level of the cell and two carry bits at the next higher significance level, apparatus interconnecting the bits indicating partial products to the input terminals of a cell at each significance level, apparatus interconnecting the carry output terminalsof a cell to input terminals of the cell at the next significance level, apparatus interconnecting one carry output terminal of a cell to any unused input terminalat a cell of a particular stage at which only three input signals are provided, and apparatus interconnecting the result terminals of each cell to the input terminals of the cell at the same significance level at the next adder level.
Patent CA-2057430-A1 (CA)
IPC: B65G19/24
Filed: 1991-12-11
Abstract: ABSTRACT OF THE DISCLOSURE    Apparatus for attaching conveyor chains and flights utilized in shuttle cars are disclosed.  The flight attachment design includes an attachment link with male members extending from the roller links to which the flights are to he attached.          The roller links have slots which allow the engagement of each of the roller links by the drive sprockets.  A specially designed flight has female receptacle with inwardly tapered ends which are positioned around the male extensions of the roller links.  Retaining pins inserted in cooperating holes secure each of the flights to the male members of the roller links.  The roller links of each conveyor chain are connected by side plates and pins positioned on each side of the roller link such that a slot remains between the roller links which may be engaged by the drive sprockets.