baber/WOPTO huggingface dataset:
Patent CA-1308093-C (CA)
Title: Earth boring apparatus with control valve
Inventor: LEITKO CURTIS E JR
IPC: E21B4/14
Filed: 1988-12-09
Granted: 1992-09-29
Abstract: EARTH BORING APPARATUS WITH CONTROL VALVE                 ABSTRACT OF THE DISCLOSURE       An earth boring apparatus has a pneumatically oper-ated earth boring tool,  a flexible conduit or drill pipe connected to the tool and to a source of pneumatic fluid.          The tool has an earth boring member and a reciprocally mov-able hammer positioned in the tool to apply a percussive force.  A valve assembly in the flexible conduit or drill pipe substantially adjacent to the tool between the tool and the source of pneumatic fluid controls the flow of pneumatic fluid to the tool in response to the pressure of pneumatic fluid in the flexible conduit or drill pipe permitting the valve to be opened to permit flow of pneumatic fluid to the tool at a predetermined operating pressure to transmit an initial pulse of pneumatic fluid to initiate operation of the hammer.  The valve is kept open at a lower pressure than that required to open it.  One form of the valve is a press-ure operated valve,  spring-loaded toward closed position, opened at a first predetermined pneumatic pressure permit-ting flow to said tool and closed at a second, substantially lower, pneumatic pressure.   Another form of the valve in-cludes a valve, spring-loaded toward closed position, which opens in response to pneumatic conduit pressure, and spring loaded ball detents or a pneumatic pressure operated latch to secure the valve in an open position.   The latch and valve are operated to closed position at a lower pressure.
Patent CA-1286367-C (CA)
Title: Optical fiber communications system with optical fiber monitoring
Inventor: SO VINCENT C Y
IPC: G02B6/28
Filed: 1988-12-21
Granted: 1991-07-16
Abstract: OPTICAL FIBER COMMUNICATIONS SYSTEM WITH OPTICAL FIBER MONITORING     Abstract of the Disclosure Optical communications fibers extend from a central office to subscribers' premises for carrying signals in both directions between optical transmitters and receivers.  Each subscriber's optical receiver continuously reflects back to its fiber, and thence to the central office, about 20 percent of the light which it receives.  At the central office the reflected light is monitored in turn for each subscriber, and is correlated with the signal transmitted to that subscriber to provide a signal for optical time domain reflectometry of the respective subscriber's fiber connection.
Patent CA-1336570-C (CA)
Inventor: SARTORIO FRANCO
IPC: B21D43/00
Filed: 1989-01-26
Granted: 1995-08-08
Abstract: The present invention relates to a plate bending machine, and, in particular, to a plate bending machine such as a press break provided with a manipulator capable of handling a plate which is subjected to a bending process in a bending machine, and to a plate bending machine provided with a plate position detecting device capable of detecting a position of the plate which is being handled by the manipulator and being subjected to the bending process.
Patent CA-1319022-C (CA)
Title: Cooking oil filtering system and method
Inventor: TURMAN WILLIAM C
IPC: B01D29/07
Filed: 1989-02-13
Granted: 1993-06-15
Abstract: COOKING OIL FILTERING SYSTEM AND METHOD            ABSTRACT OF THE DISCLOSURE     A  cooking oil filter system comprises a pre-filter for removing  relatively large particles from cooking oil and  a second  filter assembly connected to the  pre-filter  outlet for  removing  smaller  size  particles.    A first,  inlet manifold  connects the drain outlets of a series of  cooking vats  to  the pre-filter inlet,  while a second,  outlet  or return  manifold  connects the outlet of the  second  filter assembly  to an inlet on each of the cooking  vats.   Valves are  provided  in the inlet manifold path between  each  vat outlet and the pre-filter,  and in the outlet manifold  path between  the  second filter assembly and each  of  the  vat inlets.  A  suitable  control assembly controls opening  and closing of the valves to control connection of each  cooking vat into the oil re-circulating and filtering system.
Patent CA-1335006-C (CA)
Title: Flame resistant staple fiber blend
Inventor: TANAKA MAKOTO
IPC: D02G3/44
Filed: 1989-02-22
Granted: 1995-03-28
Abstract: A flame resistant staple fiber blend, useful for flame-resistant clothing, comprising 80 to 97 weight parts of m-aramide polymer staple fibers (A) with a small thermal shrinkage stress of 130 mg/d or less at 350°C, 3 to 20 weight parts of p-aramide copolymer staple fibers (B) with a higher flame resistance than that of the m-aramide staple fiber (A), and optionally, 240 weight parts or less of non-fusible staple fibers (C) with a lower thermal shrinkage stress than that of the staple fiber (A).
Patent CA-1301859-C (CA)
Title: Automatic gain control circuit
Inventor: ICHIMURA KIYOSHI
IPC: H03G3/20
Filed: 1989-02-24
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE     An automatic gain control circuit comprising an input terminal means for receiving first and second signals, an amplifier for receiving and amplifying first and second signals and outputting a first output signal when receives the first signal and outputting a second output signal when receives the second signals, input means for receiving an operation control signal and responsive to the operation control signal for separately inputting the first and second signals to the amplifier with a predetermined interval of time, control signal generating means responsive to the second output signal of the amplifier for generating a control signal, selection means connected to the input means for supplying the second output signal of the amplifier to the control signal generating means when the second signal is fed to the amplifier and sending out the first output signals to an external circuit when the first signal is fed to the amplifier and gain control means connected to the amplifier and the control signal generating means and responsive to the control signal for regulating the gain of the amplifier, wherein the control signal generating means includes gain maintaining means for maintaining the regulated gain of the amplifier.
Patent CA-1322538-C (CA)
Inventor: KUPERSMIT JULIUS B
IPC: B65D85/18
Filed: 1989-03-28
Granted: 1993-09-28
Abstract: 25,585 ABSTRACT OF THE DISCLOSURE             A reuseable shipping container for manufactured sub-components and parts suitable for use on a manufacturing assembly line.  The parts are not individually wrapped, but are suspended upon flexible cradle-like supports, the ends of which are carried upon elongated bars carried by the container for relative movement in a direction perpendicular to the axis of the bars.  One vertical side of the container is removable to provide access to the interior thereof.  The container is loaded by engaging the parts on the cradle-like supports in a vertical stack, carried by a bar, following which the bar is moved in a direction away from the opening.  A second bar is engaged with the container, and a second vertical stack is formed.  This process is continued until the container is substantially filled. Unloading takes place in reverse order.  When emptied, the container may be collapsed for return to a point of reloading.
Patent CA-1309518-C (CA)
Title: Collapsible, heat insulating mattress having foam lattice cells and a slit foil sheet covering
Inventor: OSCZEVSKI RANDALL J
IPC: A47C27/00
Filed: 1989-04-07
Granted: 1992-10-27
Abstract: TITLE          "A Collapsible, Heat Insulating Mattress having Foam Lattice Cells and a Slit Foil Sheet Covering"     INVENTORS     Randall J. Osczevski Brian Farnworth ABSTRACT OF DISCLOSURE     A collapsible, heat insulating mattress is provided comprising at least one lattice structure of a foamed plastics material which has an open lattice structure in the relaxed condition, and metal coated foil coverings on each side of the lattice structure with slits extending across the lattice openings.  When the mattress is to be stowed it is squeezed to close the lattice openings and occupy less space.  The slits allow the coverings to crumple and remain undamaged when the mattress is squeezed for stowing.  The coverings may be sheets with the slits cut in them, strips laid side-by-side, either abutting or overlapping, and adhesively secured only at the lattice junctions to the lattice structure.
Patent CA-1275824-C (CA)
Title: Rate of ascent monitor
Inventor: SAUBOLLE MALCOLM
IPC: G01L9/00
Filed: 1989-04-10
Granted: 1990-11-06
Abstract: ABSTRACT OF THE DISCLOSURE           A rate of ascent monitor for divers uses a sound transducer  with  velocity  characteristics,  preferably  a diaphragm type piezoelectric transducer, to sense rate of pressure change, and a threshold detector connected to the transducer to drive an indicator providing a warning of an excessive rate of ascent.  A second threshold detector can be used to discriminate between descending and ascending motion.  The device can be a compact wrist mounted unit.
Patent CA-1275565-C (CA)
Inventor: REED JOHN F
IPC: D04H1/56
Filed: 1989-04-24
Granted: 1990-10-30
Abstract: ABSTRACT          The present invention relates to a nonwoven thermal insulating stretch fabric comprising 10 to 90 weight percent elastomeric melt blown microfiber web, the microfibers having an average diameter of less than about 25 micrometers, and about 10 to 90 weight percent crimped bulking fibers, the microfibers being bonded to the bulking fibers at points of contact and the fabric having substantially uniform stretch properties such that the fabric will recover to within about 10 percent of the original dimensions within one hour after being elongated to 125 percent of the original length.   The elasticity of the stretch thermal insulation fabrics of the present invention make them particularly suitable for applications involving thin, close fitting garments such as active sports wear, gloves etc.
Patent CA-1307690-C (CA)
Title: Film printing/reading system
Inventor: DWYER EUGENE J III
IPC: G03B27/72
Filed: 1989-05-01
Granted: 1992-09-22
Abstract: ABSTRACT             A    photographic system for accurately reproducing encoded information onto a recording medium is disclosed. The system includes an image/light source, a feedback sensor, a lens assembly, a controller,  a recording medium assembly and a reading sensor, whereby encoded information is decomposed into sections, adjusted, and transmitted such that the sections are correctly aligned and smoothly joined into a final reproduced image.   According to the present invention, encoded information can also be digitized and read.
Patent CA-1316147-C (CA)
Title: Fill spout
Inventor: DIGIUSEPPE JAMES
IPC: B65D47/26
Filed: 1989-05-11
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE An elongated pouring spout is provided incorporating relatively rotatable inner and outer tubular members which are longitudinally shiftable and relatively rotatable relative to each other. The spout includes inlet and outlet ends and the outlet end of the outer tubular member is closed by an end wall and includes a plurality of peripherally spaced and radially outwardly opening ports formed therein adjacent the end wall.  The outlet end of the inner tubular member is open and includes a beveled (innerside) end edge sealingly seatable in a circumferential groove formed in the inner surface of the end wall and the inlet end of the inner tubular member projects outward of the inlet end of the outer tubular member.  Further, the inlet end of the spout defines a pin and slot connection between the inner and outer tubular members whereby relative rotational oscillation of the inner and outer tubular members will cause relative longitudinal reciprocation thereof.
Patent CA-1311892-C (CA)
Title: Automated sucker rod cleaning apparatus
Inventor: DOWELL JAMES S
IPC: B08B9/02
Filed: 1989-05-25
Granted: 1992-12-29
Abstract: AUTOMATED SUCKER ROD CLEANING APPARATUS              ABSTRACT    An  automated  apparatus  for  molding  rod  guides directly  onto  oilfield  sucker  rods  including  an apparatus for cleaning a short pre-determined section of the rod prior to the rod receiving a molded rod guide.          The  rod cleaning apparatus comprises a  substantially linear member secured to a frame which reciprocates a pre-selected stroke distance.  The rod to be cleaned is rotated and a plurality of brush assemblies mounted on the   linear  member  engage   the  rotating  rod   at pre-selected points to clean a pre-determined length of the rod in preparation for receiving a rod guide.  This automated system prepares rods for molding at a much faster rate without the requirement of large volumes of compressed air for sandblasting.
Patent CA-1338415-C (CA)
Title: C-terminal amidating enzyme composition, process for preparing, and use of the same
Inventor: IIDA TOSHII
IPC: C12N9/02
Filed: 1989-05-29
Granted: 1996-06-25
Abstract: A C-terminal amidating enzyme composition derived from serum or plasma which acts on a C-terminal glycine adduct represented by the following formula:                   (I) (wherein A represents a residue other than .alpha.-carboxyl group and an .alpha.-amino group or imino group derived from naturally occurring .alpha.-amino acid, X represents hydrogen atom or a residue of an amino acid derivative which is bonded to N atom through carbonyl group) to participate in the reaction for forming a C-terminal amidated product represented by the following formula:                (II) (wherein A and X have the same meanings as above) and glyoxylic acid, a process for preparing the same, and a method of utilizing the same.
Patent CA-1328444-C (CA)
Inventor: ENNIS JAN S
IPC: A47F7/02
Filed: 1989-06-06
Granted: 1994-04-12
Abstract: SECURE GLASS DISPLAY                         Abstract A spectacle display device including security comprising a stand (2,6), a nosepiece (6), a security member (10) released by key (12).
Patent CA-1340860-C (CA)
Title: Chemiluminescent fused polycyclic ring-containing 1,2-dioxetanes and assays in which they are used
Inventor: EDWARDS BROOKS
IPC: G01N33/58
Filed: 1989-06-29
Granted: 1999-12-21
Abstract: Chemiluminescent 1,2-dioxetane compounds are disclosed in which the molecule is stabilized at the 3-position on the dioxetane ring against decomposition prior to the molecule's coming in contact with a labile group-removing substance (e. g., an enzyme that will cleave the labile group to cause the molecule to decompose to form at least one light-emitting fluorophore) and substituted at the 4-position on the dioxetane ring with a fused polycyclic ring-containing fluorophore moiety bearing a labile ring substituent whose point of attachment to the fused polycyclic ring, in relation to this ring's point(s) of attachment to the dioxetane ring, is such that the total number of ring atoms separating these points of attachment, including the ring atoms at the points of attachment, is an odd whole number. These odd pattern substituted compounds decompose to emit light of greater intensity and of a different wavelength than that emitted by the corresponding even pattern substituted isomers. They are useful in detecting the presence or determining the concentration of chemical or biological substances in immunoassays, chemical assays and nucleic acid probe assays, and in chemical/physical probe procedures for studying the microstructures of macromolecules. Two or more of them can also be used in combination, or one or more of them can be used together with other chemiluminescent compounds, in multi-channel assays to detect two or more different analytes simultaneously. Novel intermediates used in the preparation of these odd pattern substituted compounds are also disclosed.
Patent CA-1332333-C (CA)
Inventor: AEBISCHER PATRICK
IPC: A61M5/142
Filed: 1989-08-31
Granted: 1994-10-11
Abstract: Abstract Devices and methods are disclosed to provide hybrid, modular systems for the constitutive delivery of appropriate dosages of active factors to a subject and, in some instances, to specific anatomical regions of the subject.  The systems include a cell reservoir containing living cells capable of secreting an active agent, which is preferably adapted for implantation within the body of the subject and further includes at least one semipermeable membrane, whereby the transplanted cells can be nourished by nutrients transported across the membrane while at the same time protected from immunological, bacterial, and viral assault. The systems further include a pumping means, which can be implantable or extracorporeal, for drawing a body fluid from the subject into the cell reservoir and for actively transporting the secreted biological factors from the cell reservoir to a selected region of the subject.
Patent CA-1339984-C (CA)
Title: Heat resistant polyvinyl chloride copolymer and preparation process of the copolymer
Inventor: MASUKO SEIICHI
IPC: C08F259/04
Filed: 1989-09-01
Granted: 1998-08-04
Abstract: A heat resistant polyvinyl chloride copolymer or a heat and impact resistant polyvinyl chloride copolymer is prepared by conducting graft copolymerization of N-substituted maleimide on a vinyl chloride resin or a rubber containing vinyl  chloride  resin.    The  graft copolymerization reaction is carried out in the presence of a radical polymerizable monomer which is (1) liquid at the polymerization temperature, (2) capable of dissolving the N-substituted maleimide at the temperature, (3) 70°C or more in glass transition temperature of the polymer thereof, and (4) used in an amount sufficient to dissolve the N-substituted maleimide.
Patent CA-1307910-C (CA)
Title: Concrete column forming tube
Inventor: RUMMAGE TONY F
IPC: E04G13/02
Filed: 1989-09-14
Granted: 1992-09-29
Abstract: CONCRETE COLUMN FORMING TUBE  Abstract Of The Invention A concrete column forming tube is provided for receiving poured concrete therein to produce a concrete column and which is characterized by producing improved surface characteristics on the concrete column including a matte finish without seam lines of the forming tube.  An improved flexible cylindrical liner is positioned in a generally friction-fit relationship within an elongate rigid cylindrical tube constructed of partially-overlapped spirally-wound plies of paper adhered together and defining an inside wall surface having spiral seam lines thereon.  The improved flexible liner is constructed of a convolutely-wound paperboard layer secured at butted edges and having an inside wall surface of desired paper fiber matte texture and a thickness sufficient to bridge and cover the spiral seam lines on the inside wall surface of the rigid tube to prevent the formation of seam lines on the outside surface of the produced concrete column.  A thin plastic coating layer is laminated to the inside wall surface of the paperboard layer and has a thickness sufficiently thinner than the paperboard layer so that the plastic coating layer assumes the desired paper fiber matte texture of the inside wall surface of the paperboard layer to produce a concrete column with a matte finish on the outside surface.
Patent CA-1322793-C (CA)
Inventor: CARSNER GEORGE E
IPC: G06K7/00
Filed: 1989-09-29
Granted: 1993-10-05
Abstract: ABSTRACT A method and apparatus for discriminating bar codes for an optical mark reader is provided comprising a scanning means for scanning a target area on a scannable form and producing a signal in response to certain indications, i.e., marks or spaces, in the target area, detection means for detecting indications having a width within a preselected range of widths, first comparator means for comparing the number of detected indications to a specified range of valid numbers of detected indications, and second comparator means for comparing the output of the first comparator means for two consecutive sweeps of the scanning means and enabling means for producing an enabling signal when the output of the first comparator means is valid for two consecutive sweeps, such that the enabling signal enables a bar code scanner to scan and decode the bar code, and a picking signal when the output of the first comparator means is not valid for two consecutive sweeps during a scan of the entire target area, such that the picking signal enables the optical mark reader to begin mark scanning of the scannable form.
Patent DK-164163-C (DK)
Inventor: BRIET PHILIPPE
IPC: C07D407/04
Filed: 1982-11-24
Granted: 1992-10-19
Abstract: The invention concerns [oxo-4-4H-[1]-benzopyran-8-yl]-alcanoic acids and their derivatives, their manufacture, represented by the formula. <IMAGE>   where AR is hydrogen, a phenyl radical which may or may not be substituted thenyl, furyl, naphthyl, a lower alkyl, cycloalkyl, aralkyl radical; B is a linear or branched lower alkyl radical, either saturated or ethylinically unsaturated; R1 is hydrogen or a phenyl radical; X is hydrogen or a lower alkyl or alkoxy radical and n=1, as well as salts, esters, aminoesters and amides. Compounds and their derivatives may be used as medicines, in particular in the control of tumors.
Patent FI-67146-C (FI)
Inventor: JANSSEN HARALD
IPC: H01B3/30
Filed: 1980-03-17
Granted: 1985-01-10
Abstract: 1. Use of amorphous polyether sulfones of the general formula  see diagramm : EP0017062,P7,F3  in which Ar represents a divalent phenylene, diphenylene or naphthylene residue or a divalent residue of formula II [Ar' - A]m - Ar' - in which Ar' stands for a divalent phenylene residue, A stands for a divalent residue from the group -SO2 -, -CO-, -NH-CO-, -CO-NH- and in which m represents 1 or 2 and n an integer from 50 to 150, for the production of insulated winding wires from copper by extrusion, without stretching the coating so that the total thickness of the insulation meets with the requirements of the German Industrial Standard DIN 46435.
Patent FI-77645-C (FI)
Inventor: SKUBALLA WERNER
IPC: C07C405/00
Filed: 1983-07-13
Granted: 1989-04-10
Abstract: Carbacylin derivatives of the general formula I <IMAGE>  in which   R1 denotes a hydrogen atom or the radical OR2, in which R2 can denote hydrogen, alkyl, cycloalkyl, aryl, the radical <IMAGE> or a heterocyclic radical, or R1 can denote the radical NHR3 where R3 denotes an acid radical or the radical R2, n can denote the number 2, 3, 4 or 5, X denotes a hydrogen atom or a fluorine atom,    A denotes a -CH2-CH2-, a trans -CH=CH- or -C IDENTICAL C- group,   W denotes a free or functionally modified hydroxymethylene group or a free or functionally modified <IMAGE> group, in which the OH group can be in the  alpha  or  beta position,    D denotes the group <IMAGE> a straight-chain, saturated alkylene group having 1-5 C atoms, a branched saturated or a straight-chain or branched unsaturated alkylene group having 2-5 C atoms, which may be substituted by fluorine atoms,    m can denote the number 1, 2 or 3,   E represents a direct bond, a -C IDENTICAL C- group or a -CR6=CR7- group, in which R6 denotes a hydrogen atom or an alkyl group having 1-5 C atoms and R7 denotes a hydrogen atom, an alkyl group having 1-5 C atoms or a halogen atom,   R4 denotes an alkyl, cycloalkyl or a substituted or unsubstituted aryl group or a heterocyclic group,    R5 denotes a free or functionally modified hydroxyl group, and, if R2 denotes a hydrogen atom, the salts thereof with physiologically acceptable bases, a process for their preparation and their use as pharmaceuticals.