baber/WOPTO huggingface dataset:
Patent CA-2011661-A1 (CA)
Title: Jitter measurement device
Inventor: SHOHET YUVAL
IPC: A61C19/10
Filed: 1990-03-07
Abstract: ABSTRACT OF THE DISCLOSURE    Jitter is measured by applying a first clock signal to a device-under-test, measuring the phase difference between the jittered clock signal received from the device-under-test and a reference clock signal, and converting the phase difference to a jitter measurement.  The phase difference is measured by counting the number of high frequency clock pulses between a transition of the jittered clock signal and a transition of the reference clock signal.  The phase difference is converted to a jitter measurement by determining the highest and lowest phase difference count and taking the difference between the highest and lowest count.  The phase of the reference clock signal can be adjusted as a function of the highest and lowest count by determined the mean value of the highest and lowest count and adjusting the reference clock to be of this mean value.  The range of the jitter measurement can be adjusted by adjusting the frequency of high frequency clock to the counter, the jittered signal received from the device-under-test and the reference clock signal.
Patent CA-2012217-A1 (CA)
Title: Cryogenic rectification process for producing ultra high purity nitrogen
IPC: F25J3/04
Filed: 1990-03-15
Abstract: A process for producing ultra high purity nitrogen from nitrogen produced by the cryogenic rectification of air wherein superatomospheric nitrogen is progressively condensed and revaporized to effect rejection of lower boiling impurities without need for additional energy beyond that contained in the nitrogen input.
Patent CA-2012291-A1 (CA)
IPC: B01L3/00
Filed: 1990-03-15
Abstract: ASSAY ELEMENT                   ABSTRACT OF THE DISCLOSURE              There is described an assay element suitable for use in an automated analytical test instrument for assaying a fluid sample. The element includes a thin porous member possessing a high degree of capillarity such as a fibrous mesh pad supported within a guide defined by surfaces contiguous the porous member. The dimensions of the porous member and its degree of capillarity are such as to provide for capillary transport of fluid through the member. A fluid dispenser and a fluid collecting chamber are disposed contiguous to opposed ends of the porous member. The fluid dispenser is formed as a well with a port at the bottom of the well, the port being contiguous the porous member and having a ridge extending along a perimeter of the port. The ridge protrudes into the porous member a distance sufficient for entraining fluid present in the well to propagate within the member rather than along an interface between a surface of the member and guide surfaces which hold it in place. Reservoirs may also be provided in the housing for storing reagents, mixing fluids and diluting samples so as to provide a self contained assay element. Optionally, and preferably, there may be an opening in the housing to provide fluid access directly to the central area of the porous member.
Patent CA-2017064-A1 (CA)
Title: Helical cut seal
Inventor: KURKOWSKI RONALD C
IPC: F16J15/32
Filed: 1990-05-17
Abstract: ABSTRACT OF THE DISCLOSURE           A ring seal has a radial cut, so that the ring seal may be transversely installed over a coaxial element.  The cut extends radially and circumferentially to provide cut surfaces that overlap in intimate contact and maintain intimate contact to inhibit leakage between the cut surfaces when the ring seal radially expands.  The cut surfaces are helicoid, each characterized by a radial generatrix that is constantly perpendicular to the axis of the seal.  A method and apparatus are disclosed for making a ring seal having helical cut surfaces.
Patent CA-2017809-A1 (CA)
Inventor: SANNS FRANK JR
IPC: C08G18/65
Filed: 1990-05-30
Abstract: The present invention is directed to a process for the production of optionally cellular, polyurea elastomer moldings by reacting a reaction mixture containing I) a polyisocyanate, II) a polyether having at least two isocyanate-reactive groups and a molecular weight of 1800 to 12,000 in which at least 50% of the isocyanate-reactive groups are primary and/or secondary amino groups, III) about 5 to 50% by weight, based on the weight of omponent (II) of a chain extender comprising a sterically hindered aromatic diamine and IV)   about 1 to 20% by weight, based on the weight of components (II) and (III) of an active hydrogen-containing fatty acid ester having a molecular weight of about 500 to 5000 and prepared by reacting an alcohol with an aliphatic, saturated or unaturated fatty acid, said ester being characterized in that at least one aliphatic acid which contains more than eight carbon atoms is built into the molecule, said ester further characterized as having an acid number of 0 to 100 and a hydroxyl number of 0 to 150 with at least one of said numbers being greater than 0, wherein the fatty acid ester is initially blended with component (II), component (III) or a mixture thereof and the reaction mixture is processed as a one-shot system by the RIM process at an isocyanate index of about 70 to 130.   The present invention is also directed to an isocyanate-reactive component for use in a RIM process based on components (II), (XII) and (IV).
Patent CA-2018346-A1 (CA)
Title: Niobium oxide powder (nb o ) and a process for its preparation
Inventor: BLUDSSUS WALTER
IPC: C01G33/00
Filed: 1990-06-06
Abstract: Title: Niobium oxide powder (Nb2O5) and a process for its preparation ABSTRACT OF THE DISCLOSURE            Niobium oxide powders in non-agglomerated form with a narrow particle size distribution range, high specific surface area, high purity and 2-20 ppm Fe and 2-30 ppm Ni usable in carbide preparation, ferro alloy melting and as a raw material for optical glasses and electro-ceramic and electro-optical products. The powders are made by precipitation from fluoride solution, filtering, washing, annealing and milling. The washing is carried out to an extent that annealing losses are 10-50 % by weight, the calcining is at 600°C-1000°C and the calci-ned product is finley ground.
Patent CA-2018574-A1 (CA)
Inventor: FEITH BERNHARD
IPC: C09D133/04
Filed: 1990-06-08
Abstract: ABSTRACT     A liquid coating composition is provided which comprises, as a binder, a  compound  containing  at  least  two  pendant  activated  unsaturated groups  and,  as  a  crosslinking  agent  For the activated  unsaturated groups, a particular unblocked monoprimary amine compound. The liquid coating compositions of the present invention provide the particular advantage   of  surprisingly   good   potlife   without   blocking   the crosslinking agent, with the resulting coating compositions displaying good   properties   such   as,   for   example,   solvent   resistance.
Patent CA-2018640-A1 (CA)
Inventor: TORRE-BUENO JOSE R
IPC: G06T7/40
Filed: 1990-06-08
Abstract: In a color identification system in which a video signal is rendered into three mutually distinct color element signals (R-Y, B-Y, and Y), a set of defined colors is established. The disclosed invention defines each color in the set by three compound color components (28, 30, 32) each compound color component being defined by pairwise combination of color element magnitude ranges. As the color element signals change at the pixel rate of the video signal, the invention combines them into three compound signals, each compound signal resulting from combination of a respective two of the color signals. Each of these pairwise combinations is compared with compound color component sets to determine whether the current pixel embodies a color in the set of defined colors.
Patent CA-2019201-A1 (CA)
Title: Single piece ovoid intraocular lens with haptic
Inventor: HUNKELER JOHN D
IPC: A61F2/16
Filed: 1990-06-18
Abstract: ABSTRACT       An intraocular lens for implantation in the eye comprises an ovoid lens having upper and lower haptics integral therewith.  The haptics are of substantially equal stiffness, and extend at an angle of from 0° to 15° as measured from the perpendicular to the optical axis of the lens, but do not extend beyond the shortest dimension of the lens optic.
Patent CA-2021869-A1 (CA)
Title: Process for microbiological batch production of l-carnitine
Inventor: HOEKS FRANS
IPC: C12P13/00
Filed: 1990-07-24
Abstract: The process starts from  gamma -butyrobetaine and/or crotonobetaine.
Patent CA-2021904-A1 (CA)
Inventor: CAREW DAVE
IPC: A47G27/04
Filed: 1990-07-25
Abstract: Form 24 ABSTRACT of the DISCLOSURE       A   self-anchoring   carpet   stretcher   for   aligning   an uninstalled carpet's edge  during installation to an  installed carpet edge,  particularly where hotmelt bonding tape and metal wire  strengtheners  are  used  to  bind  the  carpet  in  place, requiring  minute  adjustments  to  create  a  virtually  seamless appearance.  The present invention comprises to opposing gripping heads, one of which is manually adjustable by means of a lever adjuster.  The present invention, in its preferred embodiment, is suitable as an accessory attachment for existing impact carpet stretching tools.
Patent CA-2021981-A1 (CA)
Title: Cooking tray
Inventor: KEIM CAMERON D
IPC: B65D81/34
Filed: 1990-07-26
Abstract: COOKING TRAY                 ABSTRACT OF THE DISCLOSURE         A food storage, cooking and serving tray having a trapezoidally-shaped bowl surrounded by a lip of rectangular shape to define two large, diagonally-opposing rim areas for grasping and handling the tray and with a protective cover sealed to said tray and having an orifice revealed in said cover through which two digits of a user's hand can be inserted to grasp and remove the cover from the tray.
Patent CA-2022423-A1 (CA)
Title: Hmg-coa reductase-inhibiting imino-substituted pyridines
Inventor: ANGERBAUER ROLF
IPC: A61K31/443
Filed: 1990-08-01
Abstract: Abstract HMG-CoA reductase-inhibiting imino-substituted pyridines of the formula                  (I) in which R1  is optionally substituted aryl, R2  is optionally substituted aryl or alkyl, OH, alkoxy, aralkoxy, or optionally sub-stituted aryloxy, R3  is cycloalkyl, or optionally substituted aryl or alkyl, R4  is alkyl or cycloalkyl, X   is -CH2-CH2- or -CH=CH-, R   is     or     R6  is H or alkyl, and R7  is H, alkyl, phenylalkyl, aryl or a cation, and their salts.     Le A 27 057
Patent CA-2023007-A1 (CA)
Inventor: HOVIS KEITH W
IPC: C07C2/62
Filed: 1990-08-09
Abstract: An apparatus and a method are disclosed for transferring acid catalyst from a transport vehicle where liquid acid is carried under a relatively low vapor pressure level to a process vessel in an alkylation process where liquid acid is contained at a higher pressure level, while minimizing the loss of acid vapor to the environment.  The acid transfer is accomplished without venting the process vessel by employing a relatively small volume pressure lock chamber between the transport vessel and the storage vessel.   In a preferred embodiment the small volume pressure lock chamber also serves as a storage vessel for make-up acid which is added to the alkylation process as required.
Patent CA-2023451-A1 (CA)
Title: Wellhead assembly
Inventor: HEYNEN WILHELMUS H P M
IPC: E21B33/00
Filed: 1990-08-16
Abstract: A wellhead assembly comprising housing (1), an outer casing hanger (20) and at least one inner casing hanger (22,24) for suspending casings concentrically into a well. Each casing hanger (20,22,24) is provided with an external supporting shoulder (26,40,60), the external supporting shoulder (26) of said outer casing hanger (20) being supported by an internal shoulder (11) formed on the central bore (9) of the housing (1), the external supporting shoulder (40,60) of each inner casing hanger (22,24) being supported by an internal shoulder (28,42) formed on the inner surface of a surrounding casing hanger. Annular sealing means (76,78,80) for sealing an annular space (32,46,64) formed around the upper end of each casing hanger (20,22,24).
Patent CA-2024397-A1 (CA)
Title: Shampoo composition
Inventor: MIYAZAWA KIYOSHI
IPC: A61K8/42
Filed: 1990-08-31
Abstract: A shampoo composition containing components (I) to (V) shown below:   (I) at least one alkyloylalkyltaurine salt type anionic surfactant of the formula (A): (see formula I) wherein R1 represents an alkyl group, an alkenyl group or a hydroxyalkyl group with an average carbon number of 7 to 19, R2 is a lower alkyl group with an average carbon number of 1 to 3, and M an alkali metal or an organic amine; (II) at least one betaine type amphoteric surfactant; (III) at least one nonionic surfactant with an HLB of 10 to 16; (IV) at least one surfactant selected from alkylolamide type nonionic surfactants represented by the formula (B): (see formula II) wherein R3 represents an alkyl group or an alkenyl group with an average carbon atom of 7 to 19, m and n are integers, and m + n is 1 to 5, and semi-polar surfactants; (V) at least one cationic high molecular weight compound.
Patent CA-2025798-A1 (CA)
Title: Method for cultivating cells in microporous beads
Inventor: BUCHHOLZ RAINER
IPC: C12N5/071
Filed: 1990-09-20
Abstract: Abstract of the disclosure A method for cultivating cells in microporous beads The invention relates to a method for cultivating cells entrapped in microporous beads, which are located closely packed in a fixed bed and are supplied with nutrients discontinuously or continuously by the flow of medium in a vessel.  Suitable microporous beads have a membrane composed of a  gel or of a polyelectrolyte.
Patent CA-2030205-A1 (CA)
Title: Suspending liquid detergent compositions
Inventor: DE BUZZACCARINI FRANCESCO
IPC: C11D3/20
Filed: 1990-11-16
Abstract: SUSPENDING LIQUID DETERGENT COMPOSITIONS     ABSTRACT     Pourable aqueous detergent compositions containing C10-C16 alk(en)yk substituted succinic acid as a builder, are formulated as neat phases.
Patent CA-2033266-A1 (CA)
Inventor: MUKAI HIDEHITO
IPC: H01L39/24
Filed: 1990-12-27
Abstract: An oxide superconducting wire is obtained by performing plastic working and heat treatment of a metal pipe which is filled up with raw material powder of an oxide superconductor.  In the plastic working step, the metal pipe is subjected to flat working so that the raw material powder flows in the longitudinal direction as well as the cross direction in the metal pipe.  In this case, a draft of at least 80 % and not more than 98 % is selected in the flat working step, to further promote the cross-directional flow of the raw material powder, thereby further improving density of the raw material powder.          Thus, the as-formed oxide superconducting wire exhibits higher critical current density.
Patent CA-2033477-A1 (CA)
Title: Sump for an automatic washer
Inventor: CUR NIHAT O
IPC: D06F33/47
Filed: 1990-12-31
Abstract: An automatic washer having an improved sump formed in a bottom wall of the wash tub. The sump acts as a collection zone for wash liquid and is spaced a sufficient distance from the wash basket and has a sufficient capacity such that it can collect a sufficient amount of wash liquid therein to present a constant supply of wash liquid to the pump while preventing the collected wash liquid from coming in contact with the basket while in the collection zone. The sump has a rear wall which forms a chord of the tub and a front wall which is flush with the circumferential wall of the tub. The sump also has a sloping bottom wall which communicates at a lowest portion thereof with the suction inlet of the pump, which the sump overlies.
Patent CA-2033972-A1 (CA)
Inventor: NIEMINEN JORMA
IPC: B32B19/04
Filed: 1990-06-05
Abstract: Flexible base web of a construction covering, such as floor or wall covering or a roofing comprises a main layer (1) extending over the greatest part of the thickness of the web. The main layer is constituted of a non-woven mineral fibre mat containing predominantly discontinuous mineral fibres, such as rock wool or slag wool or glass wool fibres which are bonded to each other mechanically. A thin layer (2) containing thermally bondable fibres (1) is interposed between the main layer (1) and a coating layer (3) of polymeric synthetic material.
Patent CA-2034335-A1 (CA)
Title: Fault tree displaying method and process diagnosis support system
Inventor: IMURA YOSHIHIKO
IPC: G06N5/04
Filed: 1991-01-17
Abstract: ABSTRACT OF THE DISCLOSURE      In a system which performs an inference based on fault tree knowledge, a guidance and a formula of definition can be displayed in a window on a CRT display screen by selecting the individual items from a fault tree on the display screen by using, for example, a soft key. For displaying an abnormal course in one display screen, only events relevant to the abnormal course is picked up, and the fault tree is then reedited, so that the reedited fault tree can be automatically displayed on the display screen.
Patent CA-2038895-A1 (CA)
Title: Extended length packaging
Inventor: LIEBEL HENRY L
IPC: B65D5/50
Filed: 1991-03-22
Abstract: A relatively light-weight, rigid, non-kinking packaging for containing and shipping non-self-supporting articles of extended length including a corrugated box and a honeycomb core adhered to one or more sides of the box interiorly thereof along substantially the length of the box defining a space for receiving the product to be packaged.
Patent CA-2039665-A1 (CA)
Title: Barrier plug for dynamic rock stabilizing fixture
Inventor: SMITH CLYDE R
IPC: E21D20/02
Filed: 1991-04-03
Abstract: Docket No.: 0755-IR-RD               ABSTRACT OF THE DISCLOSURE       A barrier plug for a bore formed in a geological structure, the bore having an outer circumferential wall.  A bolt is inserted into the bore.  A sleeve secures a first axial portion of the bolt to a first portion of the circumferential wall.  Grout secures a second axial portion of the bolt means to a second portion of the circumferential wall;  A substantially disk shaped plug limits a passage of grout to between the first axial portion of the bolt and the first portion of the circumferential wall.
Patent CA-2041913-A1 (CA)
IPC: H04B1/7075
Filed: 1991-05-07
Abstract: A receiver for a direct sequence spread-spectrum communication system of the type in which a transmitter mixes a clocked pseudo-random sequence with a modulated carrier for spreading the carrier energy across a wide band of frequencies, comprises a resident clock-driven pseudo-random code generator for locally generating an essentially identical, spectrum despreading code sequence; means for clocking the resident code generator at a nominal frequency which is offset in a predetermined sense from the clock frequency of the transmitted code sequence such that the phase of the locally generated code sequence tends to slide in one direction with respect to the phase of the transmitted code sequence; detection means for determining whether the the locally generated and the transmitted code sequence are phase aligned or misaligned and for sensing their actual, incipient and/or predicted departures from a phase aligned state, and phase control means for adjusting the clock frequency for the resident code generator whenever such a departure is sensed, thereby shifting the phase of the locally generated code sequencein the opposite direction with respect to the transmitted code sequence by an amount which tends to restore the two code sequences to a phase aligned state. In other words, in keeping with this invention, the receiver has a sliding correlator for phase correlating its locally generated code sequence with the transmitted code sequence at the outset of each incoming transmission, together with a phase controller for regulating the rate at which its resident code generator is clocked once such phase correlation has been achieved, whereby the resident code generator of the phase correlated receiver is clocked at substantially the same average frequency as the transmitted code sequence for the balance of the transmission.
Patent CA-2043267-A1 (CA)
Title: Modular digital traction system
Inventor: DONOHUE PATRICK T
IPC: A61F5/10
Filed: 1991-05-24
Abstract: ABSTRACT OF THE DISCLOSURE A therapeutic traction system comprises two operational modules, a bandage-like traction band module for applying to a finger or other digit and a spring module   A working combination usually consists of two traction band modules with a spring module connected between them so as to bias them apart.   Traction band modules may vary in the number and orientation of connecting elements they carry and to which a spring module may be connected.  Spring modules are elongated coil springs which, in use, are usually deflected into a bow form and, optionally, also torsionally deflected, to create the desired biasing force.  A third auxiliary module of the system is a tool for holding the springs in a desired bowed configuration and, optionally, with some torsional preload, to facilitate mounting a given combination of traction bands and spring module onto the digit.
Patent CA-2045015-A1 (CA)
Title: Machine for removing headbone, spine, gills and organs from a front part of a fish
Inventor: KRISTINSSON SUGURDUR
IPC: A22C25/16
Filed: 1991-06-19
Abstract: ABSTRACT          The invention includes a method and a machine for removing spine 2, headbone 13 and organs 4,5,6 and 10 from a front part 1 after socalled "parting" of the fish into two parts, rear part and front part 1 (fig. 1), where the pectoral nose 9 is uncut, and the pectoral bond 20 is uncut, the belly cut 39 does not separate the lover end of the pectoral bones 19. The method includes moving, by means of a spiked chain at each side the front part I with the belly 3 at front and the head 18 at rear along a fixed straight track 21 to a fixed U-formed beam 16 a kind of a belly scraper 16 at the end of the spiked chains 23. The belly 3 is threaded upon the belly scraper 16, which scrapes the inside of the belly 3, so that the organs get loose from the front part I and are moved into the belly  scraper 16. At front and lowest of the belly scraper 16 is a gill knife 17, which cuts the lower ends of the gills 10 from the radix of the tongue 8. Below the belly scraper 16 is the belly board 22, which suppports the belly 40 from below, while the belly scraper removes the organs 4,5,6 and the gills 10. Next the front part 1 arrives to two knives 14, which in a known way cut the spine 2 and the headbone 13 from the front part 1 by two cuts 14 reaching into the belly 3, throat 5 and mouth 15. The spine 2 and the headbone 13 are moved by means of a spike chain 30 along the belly scraper 16 to its end and are drawing the adjacent or-gans. The pectoral bones 19 are adjacent to the belly flaps 24 and fall together with the cheeks 25 down into a tub 32 below for material for jam, where the bones are separated by squeezing the flesh through a sieve, where the bones can not get through.
Patent CA-2046229-A1 (CA)
Inventor: SANANIKONE PRASERT
IPC: E21B47/00
Filed: 1991-07-04
Abstract: ABSTRACT            METHOD AND APPARATUS FOR DETERMINING THE TORQUE APPLIED TO A DRILLSTRING AT THE SURFACE   The invention relates to the determination of the torque Ts acting at the surface in a drillstring while drilling a borehole, the drillstring being rotated by rotating driving elements which include an electrical motor with an output shaft. The method comprises the steps of: measuring the angular acceleration .gamma. of said shaft; measuring the torque Tm of said motor; determining the gear ratio G; determining the moment of inertia Mt of said rotating driving elements; and determining the torque Ts from the values of .gamma., Tm, G and Mt.