baber/WOPTO huggingface dataset:
Patent CA-2124229-A1 (CA)
Title: Camera with optically isolated dual viewfinders
Inventor: SHULER ERIC T
IPC: G03B13/02
Filed: 1994-05-25
Abstract: ABSTRACT OF THE DISCLOSURE A camera has a camera body and a viewing system disposed on the body. The viewing system has two framing conduits by which the user can properly frame an image to be captured. Each of the framing conduits has an image receiving aperture at one end and an image viewing aperture at the opposite end.The conduits are optically isolated from each other, in that an image entering the receiving aperture of one conduit cannot be viewed at the viewing aperture of the other conduit. The viewing conduits are preferably devoid of optical elements.
Patent CA-2124322-A1 (CA)
Title: Process for the purification of a 3-cephem-4-carboxylic acid derivative
Inventor: LUDESCHER JOHANNES
IPC: C07D501/18
Filed: 1992-12-21
Abstract: The invention relates to a new process for the depletion of 7-amino-3-[(E)-1-propen-1-yl]-3-cephem-4-carboxylic acid in mixtures of 7-amino-3-[(Z)-1-propen-1-yl]-3-cephem-4-carboxylic acid and 7-amino-3-[(E)-1-propen-1-yl]-3-cephem-4-carboxylic acid, by means of the crystalline hydrochloride or a metal or amine salt of 7-amino-3-[(Z/E)-1-propen-1-yl]-3-cephem-4-carboxylic acid or by adsorption chromatography.
Patent CA-2127170-A1 (CA)
Title: Tdma on a cellular communications system pcm link
Inventor: FALL SVEN P
IPC: H04J3/06
Filed: 1994-06-30
Abstract: ABSTRACT OF THE DISCLOSURE           A cellular radio system, having a mobile services switching center (MSC) coupled to a base station by means of a pulse code modulation (PCM) link, has an apparatus comprising, in the MSC, a transcoder and rate adaptor (TRA) that generates a PCM frame from a plurality of user data blocks, each user data block corresponding to one of a plurality of users and each user data block comprising an integer number of bytes of data.  In the PCM frame, each of the plurality of user data blocks occupies an integer number of consecutive bytes of the generated PCM frame, which is then output to the PCM link.  The base station includes a channel encoder that generates an air interface frame from a plurality of user data blocks contained in a received PCM frame.  The base station may also generate a timing control signal which is received by the MSC.  A timing controller in the MSC is responsive to the received timing control signal, and causes the TRA to synchronize output of a generated PCM frame with generation of an air interface frame such that the generated PCM frame will arrive at the base station channel encoder substantially just at a moment when the generated PCM frame is needed by the channel encoder in order to generate the air interface frame without waiting for the generated PCM frame.
Patent CA-2127265-A1 (CA)
Title: Improvements to thermally insulating glass panels
Inventor: COLLINS RICHARD EDWARD
IPC: E06B3/663
Filed: 1993-01-29
Abstract: This invention concerns a thermally insulating glass panel comprising two spaced apart sheets of glass (2, 3) enclosing a low pressure space, and interconnected by a peripheral joint of fused solder glass (4) and an array of pillars (5). The pillars (5) may be made entirely of metal. Alternatively the array may be made up of a combination of solder glass containing pillars and non-solder glass containing pillars. Additional support pieces may be arranged between the glass sheets (2, 3) before the peripher-al joint of solder glass is fused. A method of constructing such panels is also disclosed, as well as other variants.
Patent CA-2129430-A1 (CA)
Title: N, n'-substituted imidocarbonimidic diamides derived from hydroxylamines
Inventor: CANFIELD CRAIG
IPC: A61P31/04
Filed: 1993-01-19
Abstract: There are provided compounds of formula (1) wherein R1 is a substituted or unsubstituted divalent aliphatic group of 1 to 16 carbon atoms; wherein the substituents are mono or poly and are selected from the group consisting of lower alkyl, aryl and aralkyl, R3 is selected from the group consisting of same group of values as R5, R5 is selected from the group consisting of substituted and unsubstituted alkyl of 1-10 carbon atoms, aryl, cycloalkyl and heterocycloalkyl of 3-8 carbon atoms, wherein the substituents are mono or poly and are selected from the group consisting of lower alkyl, cycloalkyl of 3-8 carbon atoms, lower alkenyl, lower alkynyl, nitro, lower alkoxy, lower alkoxycarbonyl, phenyl loweralkyl, phenyl, mono and polyhalophenyl, phenoxy, mono and polyhalophenoxy, R6 and R7 may be the same or different and are hydrogen, alkanoyl or alkoxyalkanoyl, R7 may also have the same value as R5, Y is oxygen or sulfur, m is 0 or 1; q is 0 or 1, wherein the prefix alk designates moieties which are straight chain or branched chain, and the term lower designates 1-6 carbon atoms and the unmodified term alk signifies 1-24 carbon atoms, the respective tautomers thereof, the parmaceutically acceptable salts and addition salts thereof and the hydrates of said salts and addition salts.  There are further provided methods of protecting subjects liable thereto from infections caused by an organism of the group Plasmodium sp., Mycobacterium sp. and Pneumocystis carinii by administering to a subject liable to such infection, a prophylactically effective amount of a compound of the foregoing formula. These compounds will also reduce the level of infection where said subjects have already been infected.
Patent CA-2132846-A1 (CA)
Title: Fluorine-containing polymers and preparation and use thereof
Inventor: GROOTAERT WERNER M
IPC: C08F2/00
Filed: 1993-03-01
Abstract: Group IV organometallic compounds, e.g. alkylsilane, or alkylsiloxane compounds, are used as chain transfer agent in the radical initiated polymerization of ethylenically unsaturated monomers, to give polymers comprising non-ionic end groups.
Patent CA-2133111-A1 (CA)
Inventor: CHEN BRIAN CHENG-JEAN
IPC: H04B7/26
Filed: 1993-03-18
Abstract: Un système de radiocommunications cellulaire numérique à répéteur téléalimenté est décrit. Le système de communication comprend un site de communication central (106) qui transmet et reçoit des signaux sur une première voie de radiocommunication attribuée en fonction d'un plan de réutilisation de voie de système de communication cellulaire, transmet des signaux à une unité de réseau de communication cellulaire et reçoit des signaux de cette unité, et traite numériquement les signaux reçus pour une transmission ultérieure sur la première voie ou vers l'unité de réseau de communication cellulaire. Le système de communication comprend en outre un site de communication (124) sensiblement éloigné du site de communication central (108), qui reçoit un signal, soit sur la première voie de radiocommunication soit sur une seconde voie attribuée selon le plan de réutilisation de voie du système de communication cellulaire, déplace le signal reçu entre les première et seconde voies, et transmet le signal déplacé sur la nouvelle voie choisie entre les première et seconde voies.
Patent CA-2133478-A1 (CA)
Title: Elongate plastic member assembly and method and apparatus for making thesame
Inventor: MUNSCH JOHN M
IPC: B29C53/32
Filed: 1994-02-04
Abstract: A method of making an elongate plastic member assembly (76, 80, 84, 88) includes providing at least an elongate plastic member (62) having a plastic wall (66). One portion of as elongate plastic member (62) is aligned adjacent to another portion of an elongate plastic member (62) and the walls (66) of the adjacent elongate plastic members are plasticized. The plasticized portions of the walls are flowed into a mold (32) between adjacent elongate portions to fuse the adjacent portions together. A peelable elongate plastic member (76, 80, 84, 88) is made is accordance with the process described above. The elongate plastic member assembly may be made of a single elongate plastic member (62) in a coiled configuration or a plurality of elongate plastic members joined in parallel at selected points along their length. Another aspect of the present invention is an apparatus (10) for making an elongate plastic member assembly. The apparatus (10) includes complementary upper (14) and lower (16) radio frequency dies, each die having a leading surface (20', 20) with a plurality of parallel grooves (22', 22) therein including a first and a last parallel groove. Adjacent parallel grooves of both dies are separated by a land strip (28', 28) of the leading surface. An outermost edge of the first and last parallel grooves of at least one of the upper and lower dies is beveled (34, 36, 38, 40). Parallel grooves of the upper and lower dies, with the leading surfaces in an operative position, define a plurality of receiving channels (30) and the land strips define a plurality of flow chambers (32). A press (60) is provided for bringing leading surfaces of the upper and lower dies into an operative position in close proximity to one another. A radio frequency generator (18) selectively applies as energy potential between the upper and lower dies to plasticize the elongate plastic members, whereby plastic flows into the flow chambers (32) to fuse adjacent elongate plastic members together.
Patent CA-2133547-A1 (CA)
Title: Interconnection process and system for the control of messages in an array of processors having a parallel structure
Inventor: LETELLIER LAURENT
IPC: G06F15/173
Filed: 1994-10-03
Abstract: DESCRIPTIVE ABSTRACT            Interconnection process and system for the control or manage-ment of messages in an array of processors having a parallel structure.            The invention relates to a process for controlling the cir-culation of messages in a ring network, in which the data are consecutively supplied, which ensures a consistency of the circulating messages.  It also relates to an interconnec-tion system for performing this process.  This system compr-ises a plurality of processors (P0, ...., Pn) connected on a ring network by means of in each case a cell (C0, .... Cn) ensuring the transmission and reception of messages circu-lating in the ring, a reception module (R0, ..... , Rn) able to store the messages intended for the processor and a transm-ission module (E0, ......     En) able to store the messages to be supplied to the network.            Application to the processing of signals, and the processing and synthesis of images.            (Fig. 1)
Patent CA-2135013-A1 (CA)
Inventor: MCGUIRE SHEL
IPC: B29C45/78
Filed: 1994-11-03
Abstract: A molding process for syndiotactic polypropylene includes holding the melt at a process temperature of about 27 to 77°C to achieve a cycle time of less than 150 sec~and a haze value for a 2 mm thick article of less than 38%.
Patent CA-2135742-A1 (CA)
Title: Process for high-ph metal ion chelation in pulps
Inventor: ELOFSON ARNE
IPC: D21C9/10
Filed: 1994-11-14
Abstract: Process  for  high  pH  metal  ion  chelation  in  pulps.  Extraction and removal of detrimental metal ions and organic solvent extractives prior to delignification and bleaching is carried out on pulp, preferably kraft pulp, at a pH over 5, more preferably a pH over 6, most preferably a pH of 7-9.  Aqueous pulp is first brought to a pH of about 3-6 to cause chelation and desorption of metal ions from the fiber phase of the aqueous pulp,  and at the same time implementing air entrainment and evaporation.  The pH is then raised, and the extractable species are removed by dewatering and washing the pulp.
Patent CA-2135970-A1 (CA)
Title: Ofdm synchronization demodulation circuit
Inventor: SEKI TAKASHI
IPC: H04L27/22
Filed: 1994-11-16
Abstract: ABSTRACT OF THE DISCLOSURE           The invention provides an OFDM synchronization demodulation circuit which includes a receiving circuit for receiving an orthogonal modulated wave of an orthogonal frequency division multiplex (OFDM) modulated signal having an available symbol period and a guard period in waveform which coincides with a part of the available symbol period. an orthogonal axes demodulation circuit for demodulating an in-phase axis detection signal and an orthogonal axis detection signal through orthogonal detection for the OFDM modulated wave from the receiving circuit. a first delay circuit for delaying the in-phase axis detection signal by the available symbol period, a second delay circuit for delaying the orthogonal axis detection signal by the available symbol period, a correlation calculation circuit for calculating coefficients of the correlations of the in-phase axis detection signal and the orthogonal axis detection signal from the orthogonal demodulation circuit with the output of the first or the second delay circuits. a guard timing detection circuit for detecting a timing of the guard period in the demodulation outputs from the orthogonal demodulation circuit. and an OFDM signal demodulation circuit for demodulating the OFDM modulated signal by extracting the available symbol period signal only from the demodulated output of the orthogonal demodulation circuit using the timing signal.
Patent CA-2136323-A1 (CA)
Inventor: LYNCH JOHN
IPC: G06Q10/06
Filed: 1994-03-21
Abstract: The present invention is a method and apparatus for managing memory in goal processing. Search states (130) that contain alternative subgoal (120, 125) are created. Problems state modifications associated with the goals contained in a search state are associated with a search state object (120, 125). A search state object (130) contains information about the search process and the goals included in the search state, and a pointer to previous search state objects (120, 125).  Processed goals are kept on a goal stack (90), and the search state object points to the first and last goal stack entry included in the search state object (120, 125). When a goal processing failure occurs, an alternative subgoal is directly accessible without visiting each subgoal individually.
Patent CA-2138697-A1 (CA)
Inventor: OKANOUE KAZUHIRO
IPC: H03H21/00
Filed: 1994-12-21
Abstract: A maximum-likelihood sequence estimator implemented to cope with an intersymbol interference from a single symbol employs a necessary channel impulse response estimation vector of two components for a decision to estimate a maximum-likelihood sequence. A channel impulse response estimator implemented to estimate a channel impulse response in consideration of intersymbol interferences from up to two symbols outputs a channel impulse response estimation vector of three components. The three-component vector is input to a converter, where it is converted into the two-component vector to be output to the maximum-likelihood sequence estimator.
Patent CA-2138709-A1 (CA)
Inventor: LJUNGBERG BJOERN
IPC: C23C16/40
Filed: 1994-12-21
Abstract: A body with a coating comprising one or more refractory layers of which at least one layer is a layer of .alpha.-Al2O3 textured in the (110) direction is disclosed. Said alumina layer which is essentially free of cooling cracks, comprises platelike grains with a length of 2-8 µm and a length/width-ratio of 1 - 10, preferably 3 - 7. The coated tools according to the present invention show improved tool lives compared to prior art tools when used for machining steel or cast iron material.
Patent CA-2141187-A1 (CA)
Title: Valves and valve timing for internal combustion engine
Inventor: BORTONE CESARE
IPC: F01L1/26
Filed: 1993-07-27
Abstract: An exhaust valve assembly (30) selectively covers an exhaust manifold (42) circumferentially located about a top wall of a cylinder (20) without interfering with segments of a piston (21).      The exhaust valve assembly includes a ring-shaped portion (22b) of a cylinder lining which is configured to selectively obstruct air from escaping radially from the tog of the cylinder. The exhaust manifold (42) is opened and closed by the lifting of the exhaust valve assembly (30) by a vertical guillotine-type motion. An intake valve assembly (50) is provided on a cylinder head (26) and has a ring or washer shape. The timing of both valves is facilitated by a single spring (100) and induction and exhaust gear-like, planar timing bearings (70, 110). Each of the induction timing bearing (70) and the exhaust timing bearing (110) have a caming surface provided thereon to face the other bearing. The induction timing bearing (70) and the exhaust timing bearing are followed by respective roller tappets (72, 112). The valving and timing arrangement facilitate the flexibility in the design of a combustion chamber (21a).
Patent CA-2143607-A1 (CA)
Title: Pigmented compositions and methods for producing radiation curable coatings of very low gloss
Inventor: GORZALSKI PETER J
IPC: C09D4/00
Filed: 1993-09-08
Abstract: Very low gloss finishes are attained in pigmented, radiation curable coatings by inclusion of a combination of photoinitia-tors having an acylphosphine oxide photoinitiator and a second photoinitiator such as an acetophenone derivative. In the method of producing the low gloss finishes, the coating is first exposed to ionizing radiation (e.g., electron beam) in air, then exposed to actinic radiation (ultraviolet light) in an essentially inert atmosphere. The low gloss is achieved by a fine, uniform surface wrin-kling effect.
Patent CA-2143670-A1 (CA)
Title: Process for the stabilization of and stabilizer mixtures for single-material recycled plastics
Inventor: HOFFMANN KURT
IPC: C08K5/13
Filed: 1993-09-14
Abstract: Single-material recycled thermoplastics from commercial and industrial waste can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and an inorganic compound from the series consisting of metal oxides, hydroxides and carbonates.
Patent CA-2143798-A1 (CA)
Title: Expansion joint for an electrical conduit which is electrically grounded through the expansion joint
Inventor: STAGNITTI BRIAN M
IPC: H01R4/64
Filed: 1995-03-02
Abstract: Two electrical conduit sections are attached to a thermal expansion joint which permits relative axial movement between the conduit sections.  One of the conduit sections has an end portion which is axially slidably disposed inside of the expansion joint.  A ring shaped grounding element is mounted on a screw thread formed in that slidable end portion and is disposed in sliding connection with a cylindrical surface of the joint which surrounds the slidable end portion.
Patent CA-2145332-A1 (CA)
Title: Hollow die and an apparatus for continuous extrusion forming of hollow articles
Inventor: YANO SADAHIDE
IPC: B21C23/00
Filed: 1995-03-23
Abstract: A hollow die (5) for extruding elongate hollow arti-cles has a thick cylindrical body (15), whose cavity (23) extends in the axial direction of the die.    This cavity receives and holds a core (7), a female member (21) and other necessary parts in alignment with each other in the axial direction.    The hollow die is thus of such a high rigidity that higher extrusion rates will not cause any intolerable distortion or the like deformation in the die, thereby enhancing the productivity and the dimen-sional precision of the extrudates.    The hollow die is particularly adapted for use with the continuous extru-sion forming apparatuses.
Patent CA-2146735-A1 (CA)
Title: Liver parenchymal cells having clonal growth ability, method for obtaining same, method for subculturing same, and subculturing system of primary hepatocytes
Inventor: TATENO CHISE
IPC: C12N5/074
Filed: 1995-04-10
Abstract: The present invention provides liver parenchymal cells having a clonal growth ability, which possesses at least one of the cell biological properties such as: presence of peroxysome; being positive to hepatocyte-markers; being partially positive to neoplastic hepatocyte-markers or immature hepatocyte-markers; being positive to antibodies against the surface antigens of ovall cells; and being partially positive to bile duct cell-markers. The present invention also provides a method for obtaining such cells and a method for subculturing such cells.      With the liver parenchymal cells above, it will be possible to research in detail the process of development and differentiation, the mechanisms of growth and functional expression of hepatic cells, and to open up a new way to clalification of mechanisms of hepatoma and various other diseases and to development of therapeutic method against these disseases.
Patent CA-2146942-A1 (CA)
Title: Process for preparing 2,2-difluoroketene silyl o,s-acetals and ,-difluoro-.beta.-silyloxy-1,3-dioxolane-4-propanoic acid o,s-esters
Inventor: WEIGEL JOHN ASHLEY
IPC: C07F7/18
Filed: 1995-04-12
Abstract: Abstract Processes for preparing 2,2-difluoroketene silyl O,S-acetals and .alpha.,.alpha.-difluoro-.beta.-silyloxy-1,3-dioxolane-4-propanoic acid O,S-esters.
Patent CA-2147804-A1 (CA)
Title: Detonating system having a detonator within an insulating container
Inventor: GESSEL UWE
IPC: F42B3/11
Filed: 1995-04-25
Abstract: A detonating system includes a detonator within a thermal insulating container. In order for the detonator, especially an electronic detonator, to be usable at higher temperatures, the detonator is surrounded by the thermal insulating container especially a Dewar vessel.
Patent CA-2148416-A1 (CA)
Title: Suction cup release mechanism
Inventor: MCPHERSON GARY
IPC: A47K3/12
Filed: 1995-05-02
Abstract: A  suction  cup  release mechanism  is  described which includes a lever pivotally mounted to a support.  A linkage member extends from the lever to a suction cup at a remote end of the support.  The linkage member is secured to a peripheral edge of the suction cup.   Upon the lever being pivoted, a force is exerted by the linkage member to draw the peripheral edge of the suction cup away from a surface to which it is adhering until suction maintaining the suction cup in position is released.
Patent CA-2152151-A1 (CA)
Title: Flame retardant chemical resistant thermoplastic molding composition
Inventor: MASON JAMES P
IPC: C08L27/18
Filed: 1995-06-19
Abstract: A flame retardant thermoplastic composition having an improved level of chemical resistance is disclosed. The composition which contains about 1 to 14 pbw bromine, comprises (i) a bromine containing carbonate polymer, (ii) a thermoplastic polyester resin, (iii) a graft polymer, (iv) a phosphorous containing compound conforming to O=P-[-OCH2C(CH2Br)3]3 and optionally (v) polytetrafluoroethylene (herein PTFE).
Patent CA-2154364-A1 (CA)
Title: Door positioning system
Inventor: BOYD DOUGLAS E
IPC: E05F1/02
Filed: 1994-01-21
Abstract: A door (10) positioning mechanism (12) with a movable carriage (40) driven by a motor (28) through a lead screw (42), wherein the movable carriage (40) is connected to open and close the door (10) by movement of the door (10) rectilinearly along a track (14) through the expedient of a drive train utilizing a multiple sheave and cable connection between the door (10) and the movable carriage (40). A hand disconnect (32) is provided to disable the positioning mechanism (12) and allow manual movement of the door (10). A thermal (fire switch) dead weight control (38) is also provided to override the positioning mechanism (12) and automatically shut the door (10).
Patent CA-2154957-A1 (CA)
Title: Dual action pumping system
Inventor: BOWLIN KEVIN RUSH
IPC: F04B47/02
Filed: 1995-06-28
Abstract: A system for improving the economics of production by reducing lifting costs of a producing well utilizes the upstroke of a pump to produce a fluid mixture of primarily oil with only a fraction of the produced water and the downstroke to inject the remaining produced water beneath a packer into a lower formation.