baber/WOPTO huggingface dataset:
Patent CA-2077735-A1 (CA)
Inventor: LECOMTE ROGER
IPC: G01T1/29
Filed: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE              The PET apparatus comprises  first and second coaxial and laterally adjacent rings of gamma-ray detectors surrounding a subject under study.  The detectors of the first ring are angularly offset with respect to the detectors of the second ring.  In the apparatus, (a) linear trajectories interconnect in a first direct plane pairs of detectors of the first ring, (b) linear trajectories interconnect in a second direct plane pairs of detectors of the second ring, and (c) linear trajectories interconnect in two cross planes pairs of detectors each formed of one detector of the first ring and one detector of the second ring. Radioactive isotopes are injected into the subject and emit positrons each annihilating with an electron to produce a pair of gamma rays propagating in opposite directions.  When the gamma rays of a pair propagate in opposite directions along one of the trajectories, they  are  detected  by  the  corresponding  pair  of detectors.   A data acquisition circuit stores data indicative of the linear trajectories of the direct and cross planes along which the detected pairs of gamma rays have propagated, and a computer combines these data in a single plane of reconstruction so as to reconstruct in that plane a distribution of sources from which the detected pairs of gamma rays originate. Adequate  sampling  is provided  to  achieve maximum resolution of the reconstructed image in stationary mode.
Patent CA-2079684-A1 (CA)
Inventor: WOODRUM GUY T
IPC: B01J20/26
Filed: 1990-04-02
Abstract: Moisture absorbing pellets useful as animal litter are made from a blend of bentonite clay and a solid water-swellable but water-insoluble organic polymeric hydrocolloid.
Patent CA-2080722-A1 (CA)
Inventor: ISHIHARA KOSEI
IPC: B21D1/12
Filed: 1992-11-23
Abstract: A sheet metal drawing equipment capable of rapidly and positively carrying out sheet metal drawing without skill and effectively smoothing a surface of a sheet metal material. The equipment includes a first operation mechanism provided with at a distal end thereof with a bit weldable to a surface of a sheet metal material to be drawn, a second operation mechanism manually operated to pull up the first operation mechanism, and a leg structure for supporting the second operation mechanism. The second operation mechanism includes a support section for rotatably supporting the first operation mechanism.
Patent CA-2080755-A1 (CA)
Title: Adhesion barrier applicator
Inventor: ADAMS RONALD D
IPC: A61B/
Filed: 1992-10-16
Abstract: An applicator is provided for applying a sheet of surgical material, e.g., an adhesion barrier or other surgical fabric, to internal body tissue. The applicator includes an expandable operating tip which is insertable into an endoscopic tube through an incision in a body to enable a surgeon to apply the adhesion barrier or other surgical fabric to tissue inside the body.  A preferred embodiment of the applicator includes a set of telescoping tubes comprising an outer delivery tube, a intermediate deployment tube, and a inner irrigation tube. An expandable spreader tip is mounted at the distal end of the irrigation tube and connected to the distal end of the deployment tube.  By advancing the deployment tube and irrigation tube relative to the delivery tube, the spreader tip is exposed at the distal end of the delivery tube.  The spreader tip is expanded by movement of the deployment tube relative to the irrigation tube to spread the adhesion barrier over the tissue.  A nozzle is provided at the distal end of the irrigation tube for applying a fluid, e.g., a saline solution, to the adhesion barrier.
Patent CA-2085645-A1 (CA)
Title: Improvements relating to smoking products
Inventor: HEMSLEY STEPHEN R
IPC: A24B3/14
Filed: 1992-12-17
Abstract: In a method of making a smoking product a mixture comprising a particulate bulk material, tobacco for example, a binder, sugar, ammonia and an ammonium salt, preferably with the addition of water, is extruded to provide a coherent extrudate.
Patent CA-2087049-A1 (CA)
Title: Seat belt adjuster
Inventor: CAMPBELL TERRY A
IPC: A44B11/04
Filed: 1993-01-11
Abstract: A seat belt adjuster is provided for holding the lap seat belt to the shoulder belt of an automobile seat belt and prevent the shoulder belt rubbing against the neck of a wearer. The adjuster is made of a single unitary piece and therefore cannot be separated. A frame member formed of resilient material has a front portion, rear portion, top edge, bottom edge and space between the front and back portions for containing the lap seat belt. There is a hinge at the top edge joining the rear and front portions together and a retaining snap at the bottom edge to hold the two portions together. A clip forms part of the front portion extending down from the top edge retains the shoulder belt.
Patent CA-2087479-A1 (CA)
Title: Border Applying Aid
Inventor: RICCI ANITA R
IPC: B44C7/06
Filed: 1993-01-18
Abstract: An implement for use in applying strip material such as wallpaper borders to vertical walls comprises a holder which carries an upright spindle over which a roll of the strip material is received.  The holder includes a reservoir to receive liquid which may drip from the roll of strip material, the roll being held clear of the liquid in the reservoir by a support on the spindle.
Patent CA-2091885-A1 (CA)
Inventor: SEABOLD THOMAS W
IPC: B31B50/86
Filed: 1991-10-03
Abstract: A handle (10) for use with a container such as a flexible bag structure (12). The handle (10) includes first and second handle members (30, 32) that reinforce each other as the handle (10) is grasped to manipulate the bag structure (12).
Patent CA-2092292-A1 (CA)
Inventor: SCHAEFFER DENNIS R
IPC: H04J4/00
Filed: 1992-06-08
Abstract: A communication system having a site (42) employing a plurality of communication channels. Each channel is assigned a desired received signal strength threshold. A channel is assigned to a subscriber unit (43a 43b) based upon the strength of the sig-nal received at the site (42) and the power control range of the suscriber unit (43a, 43b). The selection of a channel may be per-formed either by the site (42) or the subscriber unit (43a 43b). In an FDMA environment (50), each separate frequency division channel may be assigned different received signal strength thresholds. In a non-overlapping time interval (TDMA) environment (70), each separate time division channel may be assigned different received signal strength thresholds. In another embodiment (80), a combination of FDMA and TDMA environments can be used.
Patent CA-2092316-A1 (CA)
Title: A method and an apparatus for producing a container
Inventor: NILSSON TORSTEN
IPC: B29C55/22
Filed: 1991-09-23
Abstract: The present invention relates to a method and an apparatus for orienting amorphous plastic material in that the material is caused to be displaced through a gap with a smallest gap width less than the material thickness of the plastic material. During such displacement, the material is oriented under the formation of a transition zone (18) between as yet unoriented (thicker) material (16b) and oriented (thinner) material (16a). The material is displaced at a speed entailing that crystallization energy released on the orientation reaches the defining surfaces (14, 17) of the plastic material at a point in time when the material has already assumed its reduced thickness. The apparatus includes a drawing ring (50) and a mandrel (60), between which the gap is formed. When the plastic material enters into the gap, the gap is of a width which substantially corresponds to the material thickness of the amorphous material. In the direction of displacement of the plastic material, the gap width is reduced so as to be less than the material thickness of the amorphous material, but exceed the material thickness of the oriented material.
Patent CA-2097146-A1 (CA)
Title: Process for the disposal of flue gas residues
Inventor: FREY RUDOLF
IPC: A62D101/08
Filed: 1993-05-27
Abstract: ABSTRACT OF THE DISCLOSURE      Solid residues obtained in flue-gas purification, in particular flue dusts, are disposed in an environmentally compatible and economical manner by acid extracting heavy metals from the residues, precipitating the heavy metals from the extract, separating the precipitate from the mother liquor, subjecting the precipitate containing heavy metals to mechanical stress during which procedure the water contained in the precipitate is released and the precipitate itself is resuspended, and then adding a hydraulic binder to the resuspended precipitate containing heavy metals and/or to the extracted residues separately from one another.  The binder-containing mixture can be used to form moldings which, after hardening, are employed for the erection of boundary walls in a landfill.          Additionally or alternatively, the plastic binder-containing mixture can be introduced in the form of layers into preformed landfill spaces, where it then hardens.
Patent CA-2097185-A1 (CA)
Title: Viral recombinant vectors for expression in muscle cells
Inventor: PERRICAUDET MICHEL
IPC: A61K35/34
Filed: 1992-09-25
Abstract: Non-replicatable viral recombinant vectors which are recognizable by muscle cell receptors, and furthermore modified by an insertion nucleic acid coding for a polypeptide sequence to be expressed in said muscle cells, are used to obtain a drug for treating muscle cell diseases or diseases which, by virtue of their location in the body, are accessible to the products of the expression of the above mentioned nucleotide sequence, as secreted by said muscle cells. A method for producing said vectors, vectors such as those described above, and their use in pharmaceutical compositions are also provided.
Patent CA-2097570-A1 (CA)
Inventor: SHIMIZU TOSHIHIDE
IPC: C08F2/16
Filed: 1993-06-02
Abstract: ABSTRACT OF DISCLOSURE            Polymer scale preventive agent A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising a condensation product obtained by con-densing (A) an aliphatic diamine compound, and (B) a quinone compound. in an aqueous medium.  Where the monomer is polymerized in a polymerization vessel having, on its inner wall surface, a coating comprising the preventive agent, deposition of polymer scale can be effectively prevented not only on the liquid phase part in the polymerization vessel but also near the interface between the gas phase part and the liq-uid phase part, so that the thus obtained polymer can pro-vide a molded item having few fish eyes and low in initial coloration, when the polymer is molded into a sheet or the like.
Patent CA-2098906-A1 (CA)
Title: A constant current and constant voltage regulating circuit for common-base or common-gate transistor devices
Inventor: JINICH LEON
IPC: H03F1/30
Filed: 1993-06-21
Abstract: A circuit for maintaining a constant voltage across and constant current through a RF cavity includes a RF cavity comprising a common-gate or common-base transistor associated with a current control circuit maintains a constant current flowing through the RF cavity.      The current control circuit has a current control BJT associated with the RF cavity and a resistor between the emitter of the current control BJT and the negative source voltage of the RF cavity. The current control BJT and resistor operate as a current source or sink as necessary to maintain a constant current flow through said RF cavity.      A constant voltage regulation portion of the circuit maintains a constant voltage across the RF cavity and includes a zener reference diode and a voltage regulation BJT. The zener reference diode has an associated isolation operational amplifier circuit for isolating the zener reference diode from current fluctuations at the source while permitting the zener reference diode to respond to voltage difference changes across the RF cavity. The zener reference changes across the RF cavity. The zener reference diode and voltage regulation BJT control voltage applied to the RF cavity. The current control circuit and constant voltage regulation circuit automatically maintain a constant current passing through and constant voltage difference across the RF cavity.
Patent CA-2099211-A1 (CA)
Title: 7,8-cyclopropataxanes
Inventor: CHEN SHU-HUI
IPC: C07D305/14
Filed: 1993-06-25
Abstract: ABSTRACT An antitumor compound of formula I                           1 in which R1 is -CORz in which Rz is t-butyloxy, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 cycloalkyl, or phenyl, optionally substituted with one to three same or different C1-6 alkyl, C1-6 alkoxy, halogen or -CF3 groups; R2 is C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-6 cycloalkyl, or a radical of the formula -W-Rx in which W is a bond, C2-6 alkenediyl, or -(CH2)t-, in which t is one to six; and Rx is naphthyl, furyl, thienyl or phenyl, and furthermore Rx can be optionally substituted with one to three same or different C1-6 alkyl, C1-6 alkoxy, halogen or -CF3 groups; R3 is -OCOR, -OCOOR, H, or OH; R4 is hydrogen; or R3 and R4 jointly form a carbonyl group; and R is C1-6 alkyl.      Also provided by this invention are pharmaceutical formulations (compositions) and a method of treating mammalian tumors with a compound of formula I.
Patent CA-2099595-A1 (CA)
Title: Apparatus for opening sealed containers
Inventor: DINNIS REINFRID C
IPC: A01M7/00
Filed: 1991-11-22
Abstract: Apparatus for opening sealed containers, especially containing concentrated agricultural chemical solutions intended for dilution and spraying, consists of a seal rupturing element (14) and seal cutting elements (13) which, having pierced the seal, cut it to form sector-like flaps which are pressed back against the internal wall of the neck of the container. Preferably, the apparatus also includes means (28, 18 and 15) to flush out the interior of the container. The apparatus may form part of industrial spraying equipment and may be mounted in the charging hopper, whereby a sealed container is presented inverted to the apparatus so that the contents flow by gravity to the hopper once the seal is broken.
Patent CA-2100653-A1 (CA)
Title: Phase-to-phase voltage monitor for three-phase power distribution system
Inventor: SCHWEITZER EDMUND O JR
IPC: G01R15/24
Filed: 1993-07-15
Abstract: A voltage monitoring device for a three-phase ungrounded delta-connected power system utilizes liquid crystal optical shutter devices capacitively coupled between phases of the system such that the combined light transparency of the optical shutter devices varies with system phase-to-phase voltage. A light source projects a light beam through the optical shutter devices to a light detector such that the output of the light detector is dependent on the system voltage. A control circuit responsive to the output of the light detector provides a control signal when the system voltage falls outside of a predetermined operating range.
Patent CA-2104898-A1 (CA)
Title: Internal combustion engine
Inventor: BREIDENBACH PAUL
IPC: F02F1/42
Filed: 1993-08-26
Abstract: INTERNAL COMBUSTION ENGINE Abstract of the Disclosure In an internal combustion engine having a cylinder block/crankcase 3 and a cylinder head 4 held together by through bolts 22, the bolts 22 extend from below the crankcase 2, through the block/crankcase 3 and are threaded into cores 23 in the lower portions of the cylinder head 4.  Thus the upper cylinder head 4 is freed for preassembly of other components.  The through bolts 22 may be mounted against contact surfaces of the crankshaft bearing caps 13.
Patent CA-2105835-A1 (CA)
Title: Preparation of .alpha.,.beta.-unsaturated .beta.-oxycarboxylic acid chlorides
Inventor: HENKELMANN JOCHEM
IPC: C07D309/28
Filed: 1993-09-09
Abstract: Abstract of the Disclosure: A process for the preparation of .alpha.,.beta.-unsaturated .beta.-oxycarboxylic acid chlorides of the formula I                                        I   where  R1 is a C-organic radical, and R2 and R3, indepen-dently  of  one  another,  are hydrogen  or  a  C-organic radical, comprises carrying out the addition reaction of an enol derivative of the formula II                        II   with a compound of the formula IIIa, IIIb or IIIc                                 ;       IIIa                     IIIb               IIIc and converting the resultant acid chloride of the formula IV                                        IV     into I by elimination of hydrogen chloride (HCl).
Patent CA-2106442-A1 (CA)
Title: Sound processing apparatus
Inventor: TAKAHASHI KATSUNORI
IPC: G06F3/16
Filed: 1993-09-17
Abstract: A sound processing apparatus has a volume control circuit for controlling sound volume and a register storing plural values specifying attenuation levels. The register values are determined to linearly correspond to the rate of change of the attenuation level.
Patent CA-2107109-A1 (CA)
Title: Method and reaction pathway for selectively oxidizing organic compounds
Inventor: CAMAIONI DONALD M
IPC: C07C67/035
Filed: 1992-02-25
Abstract: A method of selectively oxidizing an organic compound in a single vessel comprises: a) combining an organic compound, an acid solution in which the organic compound is soluble, a compound containing two oxygen atoms bonded to one another, and a metal ion reducing agent capable of reducing one of such oxygen atoms, and thereby forming a mixture; b) reducing the compound containing the two oxygen atoms by reducing one of such oxygen atoms with the metal ion reducing agent to, 1) oxidizing the metal ion reducing agent to a higher valence state, and 2) produce an oxygen containing intermediate capable of oxidizing the organic compound; c) reacting the oxygen containing intermediate with the organic compound to oxidize the organic compound into an oxidized organic intermediate, the oxidized organic intermediate having an oxidized carbon atom; d) reacting the oxidized organic intermediate with the acid counter ion and higher valence state metal ion to bond the acid counter ion to the oxidized carbon atom and thereby produce a quantity of an ester incorporating the organic intermediate and acid counter ion; and e) reacting the oxidized organic intermediate with the higher valence state metal ion and water to produce a quantity of alcohol which is less than the quantity of ester, the acid counter ion incorporated in the ester rendering the carbon atom bonded to the counter ion less reactive with the oxygen containing intermediate in the mixture than is the alcohol with the oxygen containing intermediate.
Patent CA-2108606-A1 (CA)
Title: X-linked adrenoleukodystrophy gene and corresponding protein
Inventor: MANDEL JEAN-LOUIS
IPC: A61K38/00
Filed: 1993-10-15
Abstract: ABSTRACT     Isolated nucleotide sequence selected among DNA, RNA, cDNA, responsible for the adrenoleukodystrophy or the adrenomyeloneuropathy.
Patent CA-2108732-A1 (CA)
Inventor: WARCHOCKI MARK
IPC: E05F5/00
Filed: 1993-10-19
Abstract: A viscous damper for influencing and retarding rotation of a shaft, particularly the reel shaft of a roll-down fire door. The viscous damper unit comprises a housing having radially extending lugs, a cover for mounting to a side face of the housing, and a rotor arranged to be trapped between the cover and the housing and rotatable with respect to the housing.      The rotor provides a bore for receiving the roll-down shaft for the fire door. The housing lugs are positioned to be selectively locked with respect to the framework of the fire door to prevent rotation during down rolling of the fire door. A viscous material is applied between the housing, the cover, and the rotor which retards the rotation of the rotor with respect to the housing by sheer forces. The housing is arranged to be compatible with a plurality of damping units being axially stacked along the shaft and provides aligned apertures for pinning or bolting the plurality of the housings together. In this way, the damping influence of the assembly can be adjusted by adding or subtracting units.
Patent CA-2109114-A1 (CA)
Title: A method of bidirectional communication in a cellular mobile radio communication system wherein different base stations are used for the downlink and uplink connection
Inventor: PERSSON BENGT YNGVE
IPC: H04W52/40
Filed: 1993-03-05
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to methods for handling a bidirectional connection involving a mobile station in a cellular mobile radio communication system having adjacent cells of substantially different sizes, wherein the mobile station estimates the strength of radio signals received from base stations for cells of different size, the signal strength of radio signals received from the mobile station by base stations for cells of different size are estimated, decisions on which base station(s) should be responsible for an uplink channel of a bidirectional connection are based on uplink parameters including estimated strength for signals received at base stations, the signal strength at the base station responsible for the uplink channel is used for controlling the ouput power of the mobile station, and decisions on which base station(s) should be responsible for the downlink channel of a bidirectional connection are based on downlink parameters including estimated strength of radio signals from base stations received at the mobile station.
Patent CA-2111376-A1 (CA)
Title: Stylus for an erasable marker system
Inventor: MILLER MAURICE P
IPC: B43K19/00
Filed: 1993-12-14
Abstract: ABSTRACT STYLUS FOR AN ERASABLE MARKER SYSTEM   A stylus for marking an arrangement of the type in which a first foil layer can be releasably attached to a second layer at any desired point, points of attachment therebetween being visually distinctive and constituting indicia, is provided.  The stylus comprises a shaft which has a blunt point at one end and engagement means disposed transversely with respect to the axis of the shaft  The arrangement is such that the engagement means can, in use, co-operate with a cursor mounted over the first layer to convey the cursor along the first layer.  Also provided is a marker system including the stylus and also a marker device suitable for attachment to a video cassette or the like.            Fig. 1
Patent CA-2112278-A1 (CA)
Title: Noise-reduction system
Inventor: SENDYK ANDREW
IPC: H04R3/00
Filed: 1993-12-23
Abstract: ABSTRACT A noise-suppression circuit (10) divides the signal from a microphone (12) into a plurality of frequency sub-bands by means of a noise band divider (18) and a subtraction circuit (36). By means of gain circuits (32) and (34), it applies separate gains to the separate bands and then recombines them in a signal combiner (38) to generate an output signal in which the noise has been suppressed. Separate gains are applied only to the lower subbands in the voice spectrum. Accordingly, the noise-band divider (18) is required to compute spectral components for only those bands. By employing a sliding-discrete-Fourier-transform method, the noise-band divider (18) computes the spectral components on a sample-by-sample basis, and circuitry (50, 52) for determining the individual gains can therefore update them on a sample-by-sample basis, too.
Patent CA-2113264-A1 (CA)
Title: Device for Shaping-Dough Portions
Inventor: KOENIG ELISABETH
IPC: A21C5/04
Filed: 1992-07-10
Abstract: A device for shaping portions of dough comprises a drum which rotates about a horizontal axis and which is provided at its periphery with alternating receiving apertures of two different sizes for the dough.  In each aperture, a plunger is guided in the radial direction of the drum; a restrictive guidance system is provided for the purpose of regulating the plunger.  A shift mechanism allows only one of the two apertures sizes to be aligned with the shaping device at anyone time; the device is therefore common to all aperture sizes.  This allows for a wider range of weight of the dough portions to be shaped.