baber/WOPTO huggingface dataset:
Patent CA-2073198-A1 (CA)
Title: Process for the production of compounds containing aldimine or ketimine groups and the compounds obtained by this process
Inventor: SCHAEFER WALTER
IPC: C08G65/333
Filed: 1992-07-06
Abstract: Mo-3770 LeA 28,387 A PROCESS FOR THE PRODUCTION OF COMPOUNDS CONTAINING ALDIMINE OR  KETIMINE GROUPS AND THE COMPOUNDS      OBTAINED BY THIS PROCESS                 ABSTRACT OF THE DISCLOSURE    The invention relates to a process for the production of organic compounds containing aldimine or ketimine groups by the reaction of compounds containing .beta.-ketoester groups with bis-aldimines or bis-ketimines with elimination of aldehyde or ketone and to the preferred compounds obtained by this process.
Patent CA-2075127-A1 (CA)
Title: Integrated circuit sampled-and-hold phase detector with integrated current setting resistor
Inventor: ICHIHARA MASAKI
IPC: H03D13/00
Filed: 1992-07-31
Abstract: A sample-and-hold phase detector comprises a first charge/discharge circuit for charging a first storage capacitor with a constant current for a duration corresponding to a phase difference between an input pulse and a reference pulse and discharging it after it is sampled. A first sample-and-hold circuit samples the voltage developed in the first storage capacitor to represent the phase difference between the input pulse and the reference pulse. A second charge/discharge circuit periodically charges a second storage capacitor with a constant current for a fixed time interval and discharges it after it is sampled. A second sample-and-hold circuit samples the voltage developed in the second storage capacitor. A current setting circuit, in which a current setting resistor is provided, is connected to both charge/discharge circuits to determine their constant charging currents. A differential integrator provides differential integration on the voltage from the second sample-and-hold circuit with respect to a reference voltage to control the current setting circuit in a feedback loop.
Patent CA-2075888-A1 (CA)
Title: Method of inhibiting corrosion in acidizing wells
Inventor: WILLIAMS DENNIS A
IPC: C09K8/54
Filed: 1992-08-12
Abstract: Corrosion inhibitor additives are added directly to an aqueous acid solution used in acidizing subterranean formations. The additives comprise a bismuth compound, a quaternary compound, and a surfactant. The corrosion inhibitor is free of toxic Sb and acetylenic compounds.
Patent CA-2076016-A1 (CA)
Title: Hexadentate ligands useful in radiographic imaging agents
Inventor: NEUMANN WILLIAM L
IPC: A61K51/00
Filed: 1991-12-11
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates to a ligand useful in forming radionuclide complexes, having the general formula: wherein R1 and R3 are the same or different and are selected from the group consisting of hydrogen, alkyl, aryl, hydroxyl, alkoxyl, mono- or poly- hydroxyalkyl, mono- or poly-alkoxyalkyl, alkoxycarbonyl or carbamoyl; 1 and m may be the same or different and are from 2 to 5; Q and Z may be the same or different and are an O, N or S atom; and X and Y may be the same or different and are selected from the group consisting of -OH -R4 -COOH - COSH Wherein R4 - R6 may be the same or different and are selected from the group consisting of hydrogen, alkyl, aryl, hydroxyl, alkoxyl, mono- or poly- hydroxyalkyl, mono or poly-alkoxyalkyl, alkoxycarbonyl, amino, alkylamino, aminoalkyl, or carbamoyl. The ligands are suitable for complexing with a radionuclide and are useful as general imaging agents for diagnostic purposes.
Patent CA-2076875-A1 (CA)
Title: Tinnitus masking device
Inventor: WESTERMANN SOREN E
IPC: A61F11/00
Filed: 1991-03-02
Abstract: ABSTRACT            The invention relates to a tinnitus masker with one or more signal generators, a controllable amplifier (2), one or two electroacoustic transducers (3) for conversion of electrical signals into acoustic signals and a voltage source, whereby at least one of the signal generators (1) generates a continuously repeated, sinusoidal pure tone signal which slowly moves through the audio frequency range and whose cycle duration can be adjusted between 0.1 and 1000 seconds.
Patent CA-2077950-A1 (CA)
Inventor: YAMAZAKI KOICHI
IPC: G11B7/0033
Filed: 1992-09-10
Abstract: An apparatus for optically recording and reproducing information with high accuracy is provided which can deal with a change in the operating conditions of the signal processing systems.   The apparatus having a light beam generator,  an  information  signal  processing  system including  an  amplifier,  and  a  servo  control  signal processing system including an amplifier, for optically recording  and  reproducing  information  to  and  from  an optical  information  storage  medium  while  reciprocally moving the storage medium back and forth and applying a light beam from the light beam generator to the storage medium, including: a holding circuit provided between the input and output terminals of each of the amplifiers, the holding circuit being connected to and disconnected from each of  the amplifiers;  a generator  for  generating a first  period  signal  representative  of  an  initial stationary  period  of  the  storage medium  during  the reciprocal  movement  and  a  second  period  signal representative of a stop period of the storage medium at the  turning  point  of  the reciprocal  movement;  a controller for turning off the light beam generator in response to the first period signal; and a switching unit for connecting the holding circuit between the input and output terminals of each of the amplifiers in response to the second period signal.
Patent CA-2078688-A1 (CA)
Title: Method and apparatus for laying undersea pipes or cables featuring rotating or oscillating jets and block removal
Inventor: SMITH TREVOR J
IPC: E02F3/92
Filed: 1991-03-14
Abstract: A method and apparatus for excavating cohesive material comprises directing a jet of fluid (12), for example water, at a cutting face (13) of the material and along spaced apart tracks to cut spaced apart slots and thereby to create a kerf between the two slots. The invention is particularly applicable to the excavating trenches for sub-sea cables and pipes to be laid in.
Patent CA-2079931-A1 (CA)
Inventor: CROWLEY H W
IPC: B43M5/04
Filed: 1992-10-06
Abstract: ABSTRACT OF THE INVENTION A method and apparatus for selective high-speed insertion of sheets from a plurality of webs into envelopes provides a mechanism for folding and inserting sheets into preformed envelopes.  Preformed envelopes are provided for folding and inserting from a source that may be a roll.  A plurality of sheets are fed for folding and inserting into an envelopes.  A leading sheet from each of the webs is selectively driven and cut at a collection point for folding and inserting.  The selecting of sheets for feeding and cutting may be accomplished by means of a CPU that may include a bar code detection system disposed along each of the webs.  A system for widening the openings of envelopes to facilitate  insertion of contents may also be included.  This system may comprise a strip along each of the envelopes is a stream that includes a folded section within each opening or may comprise tabs disposed along an opening side of each envelope.
Patent CA-2081037-A1 (CA)
Inventor: MOE WARREN R
IPC: H04Q3/00
Filed: 1992-10-21
Abstract: To facilitate the processing of an incoming telephone call associated with a respective telecommunications network service an initial address message identifying the incoming call is intercepted before the message is presented to an associated toll switch that will process the call. The intercepted message is then examined in order to identify the toll switch service logic that will process the call. The identity of the service logic is then appended to the message and the message is then passed to the toll switch so that the identified service logic may be invoked to process the call in accord with the requested service.
Patent CA-2081688-A1 (CA)
Title: Method of attaching a fastening element to a panel
Inventor: MULLER RUDOLF R M
IPC: F16B37/06
Filed: 1992-10-29
Abstract: A method of permanently attaching a fastening element, such as a nut or bolt to panels having a range of panel thicknesses, such as the metal panels used by the automotive and appliance industries. The fastening element includes a tubular barrel portion arid preferably an annular bearing face surrounding the barrel portion. The method includes punching a hole in the panel, then plasticly deforming and drawing the panel surrounding the hole into a dome or frusto-comically shaped portion. The panel hole is thus enlarged to receive the fastener element barrel portion from adjacent the apex of the frusto-comically shaped panel portion and the bearing face is then driven against the panel, deforming the panel to a generally planar shape. The panel surrounding the hole is thereby driven against the tubular barrel portion which, in the preferred embodiment, includes radially projecting ribs, forming secure anti-rotation means even in very thin panels.        Finally, the free end of the barrel portion is deformed radially outwardly arid preferably squeezed to form a secure interlock between the fastening element and the panel.
Patent CA-2085268-A1 (CA)
Title: Personal mobile communications system having central station for paging mobile users via base stations
Inventor: KAGE KOUZOU
IPC: H04W68/00
Filed: 1992-12-14
Abstract: A personal mobile communications system comprises base stations (4-1~4-4) located in respective zones and a paging station (8) covering an area including the zones, or cells (5-1~5-4). The paging station and all base stations are connected to a public switched telephone network (PSTN). When a call is originated from a PSTN user (2) to a mobile user (10), the paging station receives a call-setup request from the PSTN containing the address codes of both PSTN and mobile users, and broadcasts the call-setup signal over the covered cells. One or more base stations (4-1~4-3) receive the call-setup signal and, in response, broadcast an alert signal. One of the base stations (4-2) receives an off-hook signal from the alerted mobile station (10) and dials the PSTN user address code contained in the call-setup signal to the PSTN to establish a connection (15; 147~149; 176~178) between the calling and called parties (2, 10).
Patent CA-2085774-A1 (CA)
Title: Convertible furniture frames
IPC: A47C17/16
Filed: 1992-12-18
Abstract: A convertible furniture frame construction which is movable  from  a  first  orientation  to  at  least  a  second orientation.  The  frame  includes  at  least  two  sections pivotally connected together and being movable relative to each other to permit the frame to be moved between the first and second orientations. One of the two sections includes a frame  member  having  one  end  closely  adjacent  to,  and overlapping an end of a frame member of the other of the two sections. A unique hinge and stop arrangement is provided for permitting  relative  rotational  movement  between  the  two sections to permit conversion of the frame between the first and  second  orientations,  and  also  for  locking  the  two sections against relative rotational movement in one of the first  and  second  orientations.  The  hinge  and  stop arrangement  includes  an  elongate  slot  in  one  of  the overlapping ends and a hinge pin connected to the other of the overlapping ends.  The hinge pin is rotatably retained within the slot to provide a pivotal connection between the first  and  second  sections.  Cooperating  stop  members  are provided on the adjacent overlapping ends for engaging each other when the hinge pin is in a first location within the elongate slot to maintain the frame in the first orientation, and for disengaging from each other when the hinge pin is in a second position within the elongate slot to permit the frame to assume the second orientation.
Patent CA-2086091-A1 (CA)
Title: Human macrophage inflammatory protein 2o
Inventor: TEKAMP-OLSON PATRICIA
IPC: C12P21/02
Filed: 1991-06-24
Abstract: An attempt to identify the human counterpart of murine macrophage inflammatory protein 2 unexpectedly resulted in not one but two candidate sequences, designated hu-MIP-2.alpha. and hu-MIP-.beta., respectively. By using the DNA sequences and recombinant systems provided by this invention, one can obtain hu-MIP-2.alpha., one of the two human counterparts to mMIP-2, substantially free of other human protein. This invention also provides antibodies reactive with hu-MIP-2.alpha. polypeptides as well as immunoassay methods for determining hu-MIP-2.alpha. and nucleotide probes for detecting nucleotide sequences encoding hu-MIP-2.alpha. in biological samples.
Patent CA-2089465-A1 (CA)
Inventor: KANAI TAKAO
IPC: C21D8/12
Filed: 1993-02-12
Abstract: Low core loss oriented electrical steel sheet having a surface coating that has a Young's modulus that is not  less  than  100  GPa  and  a differential  of  thermal expansion coefficient relative to the sheet base metal that is not less than 2 X 10-6/K and whicll contains not less than 10 percent, by weight, of crystallites with an average size of not  less  than  10  nm  and  an  average  crystal  grain diameter that does not exceed 1000 nm, and a method of manufacturing same.
Patent CA-2095504-A1 (CA)
Title: Mineral filled epdm/epr compositions for white sidewall compounds
Inventor: VALAITIS JOSEPH K
IPC: B60C13/00
Filed: 1993-05-04
Abstract: ABSTRACT OF THE DISCLOSURE A mineral-filled white sidewall compound (25) prepared from a thermoplastic polymeric composition of matter comprises (A) 100 parts by weight of a polymer blend comprising (1) from at least about 10 to 95 parts by weight of polyolefins having from about 0.5 to about 13 percent by weight crystallinity, the polyolefins being prepared from monomers having at least 2 carbon atoms and mixtures thereof; and (2) from about 5 to 90 parts by weight of a thermoplastic crystallinity enhancing polymeric additive; (B) from about 20 to 200 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing fillers and mixtures thereof per 100 parts of the polymer blend; and (C) from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend; the white sidewall compound being adherable to a conventional cured tire black sidewall (21) without the use of solvents or water-based adhesives. A method for applying a mineral-filled thermoplastic white sidewall compound to conventionally cured tire black sidewalls comprises the steps of providing a tire (10) at least partially cured and having a black sidewall (21); applying a mineral-filled thermoplastic white sidewall compound to the tire black sidewall to form a white sidewall (25); and bonding the white sidewall to the tire sidewall under sufficient pressure and heat to provide acceptable adhesion without the use of a solvent or a water based adhesive. The present invention also provides a tire (10) having a circumferentially grooved black sidewall area (21) and a mineral-filled white sidewall compound (25) adhered thereto.   9201013                  FIR.P.US0068
Patent CA-2097862-A1 (CA)
Title: Means for bonding shaped parts of composites or other materials
Inventor: DAHLGREN WILLIAM R
IPC: B29C43/36
Filed: 1993-06-07
Abstract: ABSTRACT OF THE DISCLOSURE      A resilient pad of intertwined nylon fibers of minute cross-sectional diameter having minute interstices throughout.  The pad serves as a breather for the curing of a part of composite resinous material for which purpose it is placed over the part, which part is, in turn, fitted onto a shaped tool.  To effectuate curing of the part, the part and breather pad are covered by a vacuum bag which is, in turn, sealed around its edges to the shaped tool and provided with a vacuum outlet.  The whole assembly is then placed in an autoclave, wherein it is subjected to heat and pressure while vacuum is applied to the vacuum bag to evacuate air and volatile effluents from the part through the breather pad while the part is being cured under the influence of heat and pressure.
Patent CA-2099451-A1 (CA)
Title: Three legged folding chair
Inventor: GRAY DONALD F
IPC: A47C9/10
Filed: 1993-06-30
Abstract: ABSTRACT OF THE INVENTION  The folding chair (10) includes V-shaped main support frame (12) with an apex (28) and two legs (22 and 24) with free ends.  A V-shaped seat support frame (14) has an apex (40) and two arms (34 and 36) with free ends.  The V-shaped seat support frame (14) is pivotally attached to the main  support frame (12) by pivot pins (48 and 50) which allow pivotal movement between a position in which both V-shaped frames (12 and 14) are in a common plane and a position in which the seat support frame (14) is in a plane that is generally perpendicular to the plane through the main support frame (12).  A third leg (16) is pivotally attached to the V-shaped main support frame (12) near its apex.  The third leg (16) is connected to the apex portion (40) of the V-shaped seat support frame (14) by a pin member (66) and holds the seat support frame in a fixed position relative to the V-shaped main support frame.  The pin (66) is removed to allow both V-shaped support frames (12 and 14) and the third leg (16) to fold flat and into a common plane.  A back rest (20) is secured to the apex (40) of the V-shaped main support frame (12).  A support seat (18) is attached to the free ends of the arms (34 and 36).  The pivot pins (48 and 50) pass through conical bores (52 and 54).  Shoulder straps (86 and 88) are provided for carrying the chair (10).  Hooks (94) can be provided for attaching a backpack to the chair and carrying brackets (96) can be provided for attaching other equipment to the chair.
Patent CA-2100690-A1 (CA)
Title: Megakaryocyte differentiation factor
Inventor: TSUJIMOTO MASAFUMI
IPC: A61K38/00
Filed: 1993-07-16
Abstract: A novel megakaryocyte differentiation factor, for example, consisting essentially of SEQ ID NO: 30; DNA coding for the megakaryocyte differentiation factor, an expression vector comprising the DNA, a host transformed with the expression vector, and a process for production of the megakaryocyte differentiation factor using the host.      The megakaryocyte differentiation factor accelerates differentiation of megakaryocytes in the presence of IL-3, and acts as a thrombopoietin, and therefore an effective medicament to various diseases involving a decrease in platelets.
Patent CA-2101937-A1 (CA)
Inventor: YOON INBAE
IPC: A61B17/128
Filed: 1991-02-04
Abstract: An elastic ligature applicator device (10) including a central member (14) for storing a plurality of unexpanded elastic ligatures (24) in series fashion, a conical expander (22) and a ligature dilator (16) for pushing a ligature over the expander and onto grasped anatomical tissue. An optional applicator manipulation facilitating assembly may be provided to ease use of the applicator device during a surgical procedure. Components are readily disassembled to load a series of unexpanded elastic ligatures onto the applicator device.
Patent CA-2101967-A1 (CA)
Title: Pigmented algae-resistant granular materials, methods of preparing same, and composites sheets including same
Inventor: KAYSER MARK H
IPC: C09D5/16
Filed: 1993-08-05
Abstract: Long-term algicidal granules show improved color fastness over previously known granules. The granules have a ceramic coating comprising three layers, the first two of which have a copper compound such as cuprous oxide therein at relatively equal amounts. The ceramic coating further includes a third layer having pigment, a borate compound, and zinc oxide having an average particle size less than about 0.13 micrometer.      In particular it has been found that the use of cuprous oxide allows conversion to black cupric oxide, which is more insoluble than cuprous oxide and black in color, allowing the algae-resistant granules to retain their original color for longer periods of time under weathering conditions. Methods of producing such ceramic-coated granular materials are also disclosed.
Patent CA-2102353-A1 (CA)
Title: Fuel cell block and method for adjusting the removal of inert gas from the fuel cell block
Inventor: BETTE WILLI
IPC: H01M8/04089
Filed: 1993-11-03
Abstract: Abstract of the Disclosure:          In a method for adjusting the removal of inert gas from a fuel cell block having a number of fuel cells, a progressive rise in a proportion of inert gas results in a cathode-side or anode-side gas mixture flowing through the fuel cells.  An inert-gas-rich gas mixture is drained out as a function of a voltage drop, and the voltage drop is measured between at least two immediately adjacent fuel cells.  A fuel cell block includes a number of adjacent fuel cells having electrodes and gas chambers.  At least one bipolar plate contacts the electrodes of adjacent fuel cells over a large area.  Two spaced-apart contacts are disposed between at least two of the adjacent fuel cells on the at least one bipolar plate.  A control element for a gas mixture leaving one of the gas chambers and having a high proportion of inert gas,  is adjusted by a voltage drop picked up at the contacts.
Patent CA-2104491-A1 (CA)
Inventor: ARSENAULT JULIEN
IPC: B62D53/06
Filed: 1993-08-20
Abstract: The weight transfer device is for a tractor trailer including a tractor for pulling a trailer.   The device comprises  a  mount  having  opposite  ends  provided  with attaching elements  for attaching transversely the mount between a pair of rearward parallel frame side rails of the tractor behind its fifth wheel.  The mount receives the base of a bag unit having an upper surface over the base at an adjustable distance therefrom and an inflatable air bag between the base and the upper surface for adjusting the distance.   A bearing structure is mounted on top of the upper surface for upwardly pushing against the trailer without significantly hindering its pivotal movement around the fifth wheel.   The device further comprises a compact guiding mechanism for vertically guiding the upper surface of the bag unit while preventing the bag from drooping when the bearing structure is pushing against the trailer.  The guiding mechanism consists of an elongated member having an end connected to the upper surface and an opposite end projecting  downwards  therefrom  inside  the  bag,  and  an upright sleeve connected to the mount beneath the bag for slidably  receiving  the  opposite  end  of  the  elongated member.2
Patent CA-2106710-A1 (CA)
Title: Modular dual mug and cup holder
Inventor: MISARAS DAVID M
IPC: B60N2/75
Filed: 1993-09-22
Abstract: MODULAR DUAL MUG AND CUP HOLDER              ABSTRACT OF THE DISCLOSURE     The modular dual mug and cup holder is allowed access upon sliding opening movement of the holder out of a housing, such as an armrest, into an open position.  In a closed position, the holder slides into the housing disallowing access thereto.          The holder  includes  a  sliding member having a center planar divider with arcuate cutouts therein, and  a  pair  of  arcuate cup  members  producing generally circular cavities with the center support for holding containers or cups.   In the closed position, the arcuate cup members are pivoted in overlapping orientation with one another and with the center planar divider for compact insertion within the housing.  The holders slide outwardly automatically upon release of a push-push latch and a biasing spring.
Patent CA-2107540-A1 (CA)
Title: Label printer
Inventor: CROCKER THOMAS M
IPC: B41J11/46
Filed: 1993-10-01
Abstract: A motorless label printer employs a matrix ink jet print head under which a continuous web of labels is moved during printing. An encoder in the path of the web is rotated to generate pulses signifying the position of the labels with respect to a reference that is signalled by detection of an aperture on the web by an electric eye. The printer includes a support for a spool of the web and a delaminator for separating the printed labels from the web substrate.