baber/WOPTO huggingface dataset:
Patent CA-2020581-C (CA)
Title: Dismountable and air-transportable antenna for two-way telecommunications with a satellite
Inventor: DEVILLERS YVES
IPC: H01Q15/20
Filed: 1990-07-06
Granted: 1995-04-11
Abstract: The antenna is preferably of the offset type and comprises plural  thin and separable parabolic  elements jointed   into   a   parabolic   reflector,   and   several substantially rectangular separable panels assembled into a prismatic lattice frame for supporting the reflector. The panels are substantially perpendicular to the lower base of the lattice and have curved upper edges formed in a duplicate mould according to the reflector and separable from the reflector elements.  The antenna also comprises a telescopic elevation angle lifting mast and a circular azimuth  positioner,  both  jointed  to  the  frame  and dismountable.  The dismounted antenna is transportable in the form of standardized packages in the hold of long-distance airliner.
Patent CA-2024800-C (CA)
Title: Process for improvement of the flowability of solid cyanuric chloride
Inventor: SKARIA ALEXANDER
IPC: B01J2/10
Filed: 1990-09-06
Granted: 2000-10-31
Abstract: Solid cyanuric chloride obtained by desublimation or prilling is subjected to a shearing stress in a kneader or mixer while heating to a temperature below the melting point so as to improve the flowability of the cyanuric chloride.
Patent CA-2029298-C (CA)
Title: Seal for aseptic fitting assembly
Inventor: BRONNERT HERVE X
IPC: F16L17/06
Filed: 1990-11-05
Granted: 1995-04-11
Abstract: A metallic seal ring assembly including a U-shaped ring having a bight section and a pair of legs, a flange on the end of each of said legs, each flange including a radial surface and an annular surface, the distance between the radial surfaces being greater than the width of the bight section of the ring and a resilient sealing material filling the space between the legs of the ring.
Patent CA-2040340-C (CA)
Title: Thermoplastic end seal for electric heating elements
Inventor: WILLBANKS HENRY O
IPC: H05B3/48
Filed: 1991-04-12
Granted: 1994-09-20
Abstract: An electric heating device is disclosed which comprises a generally tubular sheath, an elongated coil of electrical resistance heating wire passing through a portion of the sheath, and a metal terminal at each end of the sheath.          The interior of the sheath is filled with a granular heat conducting, electrically insulating material, and the sheath is sealed at at least one end with a thermoplastic material having a melting temperature in the range of the temperature of the terminal when the heating device is in heated condition. The thermoplastic material must be substantially permeable to gases while melted and substantially impermeable to gases while solid.  The use of such a seal enables the heating element to consume oxygen in a normal manner while hot, but will prevent the entry of moisture into the element while the element is cool and the seal is in a solid condition.
Patent CA-2046458-C (CA)
Title: Laser scoring of packaging substrates
Inventor: GUCKENBERGER ANTHONY
IPC: B23K26/067
Filed: 1991-07-08
Granted: 2003-10-14
Abstract: An easy tear open feature is provided to packages, such as pouches or fold and seal packages, by providing said packages with at least two substantially parallel, substantially linear or straight laser scores across the width of the package, preferably adjacent to at least one seal. Such packages, for containing food such as juice concentrates or cake mixes, or for containing soap, are disclosed. Methods and apparatus for making such easy tear open packages are also disclosed.
Patent CA-2048597-C (CA)
Title: Optical interconnection network
Inventor: SMITH DAVID WILLIAM
IPC: H04B10/43
Filed: 1990-02-05
Granted: 1999-02-02
Abstract: An optical interconnection network comprises an optical bus (60) formed by a D-f ibre (62) embedded in a thermoplastic substrate (64) with the flat of the D-fibre (62) flush with the top surface of t he substrate. A module (70) similarly constructed is dimensioned to be a push fit in a wall structure (65) formed on the substrate (6 4) with the fibres (72) and (62) in a position to evanescently couple optical signals from one fibre to the other.
Patent CA-2052255-C (CA)
Title: Aerobic climbing step/bench
Inventor: WILKINSON WILLIAM T
IPC: A47C3/20
Filed: 1991-09-25
Granted: 1997-06-24
Abstract: An exercise step/bench for aerobic climbing and dance includes a base in the form of a horizontal platform having a downwardly and outwardly extending apron.   A leg is reverseably mounted against the apron at each corner of the platform.   The reverseable mounting of the legs permits height adjustment  in accordance with the orientation of each leg.
Patent CA-2054148-C (CA)
Title: Liquid-vapor pressure reservoir for medication infusion pump
Inventor: MANN ALFRED E
IPC: A61M37/00
Filed: 1991-10-24
Granted: 1995-11-28
Abstract: An  improved  and  simplified  pressure  reservoir  is provided for use with an implantable medication infusion pump to maintain  a  selected medication in liquid form within a pump  housing  under  a  substantially  constant pressure.   The  pressure  reservoir  comprises  a  hollow structural  enclosure  having  at  least  one  flexible resilient  wall  and  is  adapted  to  be  filled  with  a selected quantity of a pressure fluid, such as a selected fluorocarbon in a liquid-vapor state, prior to mounting of the reservoir as a structural unit into the infusion pump housing.    Within the pump housing,  the  flexible reservoir wall defines one side of a medication chamber, with the pressure fluid undergoing appropriate change of state to expand or contract the reservoir in a manner maintaining the medication under a substantially constant pressure.   The improved reservoir can be provided in a variety of  structural  shapes  and/or  utilized  in  pump housings of various size and shape to permit the pump size to be reduced,  or,  in the alternative, to increase pump medication capacity without increasing pump housing size.
Patent CA-2054838-C (CA)
Title: Tread for a ribbed pneumatic tire having high density siping zones located in the rib regions
Inventor: SCHUSTER DANIEL EDWARD
IPC: B60C11/12
Filed: 1991-11-01
Granted: 2001-02-20
Abstract: The present invention relates to a tread for a ribbed pneumatic tire featuring circumferentially extending ribs, at least one of which and preferably all of the ribs contain a high density siping zone.      Each high density siping zone is (a) circumferentially extending; and features (b) an inside edge and an outside edge with a total width between the inside edge and outside edge ranging from about 1.4% to about 4.5% of the overall tread width; (c) the outside edge of each high density siping zone being located from the nearest rib edge by a distance ranging from about 0.2% to about 1.9% of the overall tread width; (d) about 50% to about 80% of the surface area in each high density siping zone being ground contacting with the remaining percent of area being siping; (e) no more than 50% of the siping arranged in the circumferential direction; and (f) at least 75% of all sipes within the high density siping zone are arranged so that their end portions are laterally aligned with or overlap in the circumferential direction with an end portion of another sipe within the high density siping zone. When the tread width of the pneumatic tire is for example eight inches (203.2 mm), the total width between the inside edge and outside edge of the high density siping zone ranges from about 3 to 9 mm and the outside edge of each high density siping zone is located from the nearest rib edge by a distance ranging from about 0.5 mm to 4 mm. The high density siping zones reduce rib edge erosion wear by creating a weakened zone without the tendency of tearing.
Patent CA-2057038-C (CA)
Inventor: KELLER THOMAS A
IPC: B29C45/14
Filed: 1991-03-22
Granted: 2001-10-23
Abstract: The invention com-prises a dispensing device for applying a uniform band of li-quid material along selected surface portions of the peri-pheral margins of sheet mate-rial (19). A family of inter-changeable applicator tips (18) having different configu-rations is provided for use with the dispensing device.      Each tip (18) is of a composite construction including a rela-tively rigid base member (66) covered by a soft absorbent body (67) for contacting and transferring to the sheet sur-face the layer of liquid materi-al. The dispensing device also comprises one or more appli-cator guns (17) and a liquid material supply system (93) including an enclosed recepta-cle (94) for a liquid material supply (95) and an enclosed receptacle (96) for a solvent supply (97) for selectively flushing the liquid material from the applica-tor guns and tips. The applicator guns (17) may be mounted upon a carriage (16) oscillating between an applying position and a position where spent applicator tips are removed and replaced by new tips by a suitably programmed robot (21).
Patent CA-2062852-C (CA)
Title: Two-stage, at least doubled atm reversing switching network having (2n x 2n) switching matrices
Inventor: GOELDNER ERNST-HEINRICH
IPC: H04L12/56
Filed: 1992-03-12
Granted: 2000-09-19
Abstract: Two-stage, at least doubled ATM reversing switching network having (2n x 2n) switching matrices. For expanding a two-stage, doubled ATM self-routing reversing switching network, the switching matrices of the B switching stage can be respectively doubled in one redundancy level after another without interrupting operation given a simultaneously, respective halving of the plurality and filling of duplex link groups formed from the very outset and proceeding between A-switching stage and B-switching stage, of which duplex link groups only duplex links of one and the same group of links are occupied for every connection lasting during an expansion of the switching network.
Patent CA-2067899-C (CA)
Title: Device for detecting tones on telephone lines
Inventor: RICHMOND ROBERT L
IPC: H04M1/82
Filed: 1992-05-01
Granted: 1995-12-12
Abstract: Device for detecting and identifying call progress tones on telephone lines.  The application discloses a device for converting auditory call progress tones to visual indications and a novel circuit for identifying and distinguishing call progress tones based on their on-off cadence, if any, along with various alternative embodiments including: (1) a device which converts call progress tones to visual indications as for use by the deaf, (2) a device which is programmed to automatically go off-hook at certain times, detect a tone such as a stuttered dial tone indicating a message waiting, and activate a visual indicator, and (3) the use of a capacitor or rechargeable battery which is periodically refreshed by the device automatically going off-hook and which, while the device is on-hook, provides power required by the device.
Patent CA-2068639-C (CA)
Title: Facsimile device
Inventor: KAWAI RYOICHI
IPC: H04N1/193
Filed: 1992-05-13
Granted: 1996-01-30
Abstract: A facsimile device which can be made flat is disclosed.  The facsimile device comprises an optical system unit 10 formed of a plurality of optical system members for reading an original, and support member 17 for supporting optical system unit 10 and having at least one portion of its top surface serving as an original travel guide 17a to an original conveying roller 4.  As a result, original travel guide 17a does not need to be separately provided and therefore the device can be made flat.
Patent CA-2069804-C (CA)
Title: Serum and plasma separating compositions and blood testing containers
Inventor: ANRAKU HIDEO
IPC: G01N33/50
Filed: 1992-05-28
Granted: 2003-07-15
Abstract: The invention provides a serum or plasma separating composition which comprises a cyclopentadiene resin, a viscosity adjusting agent and an organic gelling agent.      The composition is characterized in that the cyclopenta-dime resin is a liquid resin,at a temperature of 25° C, the viscosity adjusting agent being a liquid ester obtained from propionic acid, butyric acid, benzoic acid or phthalic acid, the organic gelling agent being a condensation product of sorbitol and an aromatic aldehyde, the composition containing 0.8 to 25 parts by weight of the viscosity adjusting agent and 0.03 to 0.9 part by weight of the organic gelling agent per 100 parts by weight of the cyclopentadiene resin. The composition forms a satisfactory separating layer even when subjected to a centrifugal separation operation at a set tempera-ture of 4° C.
Patent CA-2070113-C (CA)
Title: Optical traffic preemption detector circuitry
Inventor: HAMER STEVEN M
IPC: G08G1/16
Filed: 1992-06-01
Granted: 2003-04-15
Abstract: An optical traffic preemption detector according to Figure 6 detects pulses of light emitted by an approaching emergency vehicle and provides an output signal which is processed by a phase selector. The phase selector can request a traffic signal controller to preempt a normal traffic signal sequence to give priority to the emergency vehicle. A detector assembly is mounted in proximity to an intersection and can have multiple detector channels. A detector channel can have multiple photocells. each photocell is provided with a rise time filter. If a detector channel has more than one photocell, the outputs of the respective rise time filters are coupled together. An output of a rise time filter, or coupled rise tame filters, is first applied to a current-to-voltage converter and then a band pass filter. The band pass filter isolates a decaying sinusoid signal from a signal representative of a pulse of light. The decaying sinusoid signal is processed to produce a detector channel output signal that has a number of pulses for each pulse of light.
Patent CA-2074194-C (CA)
Title: Copying tack paper for thermal printer
Inventor: INOBE KAZUHIKO
IPC: G03G5/00
Filed: 1992-07-20
Granted: 2000-05-30
Abstract: An upper thermo-sensitive paper is coated with an adhesive agent on a part of the rear surface thereof, and a lower thermo-sensitive paper is coated with a release agent on the upper surface thereof at the area corresponding to the adhesive agent coated area of sand upper thermo-sensitive paper. The upper thermo-sensitive paper is laid on and adhered to the lower thermo-sensitive paper. By separating the upper thermo-sensitive paper from the lower thermo-sensitive paper at the boundary plane between the adhesive agent layer and the release agent layer, the upper thermo-sensitive paper can be used as a tack paper and the lower thermo-sensitive paper can be used as a copying paper.
Patent CA-2076898-C (CA)
Inventor: CARLSON JAMES J
IPC: G02B23/00
Filed: 1992-08-26
Granted: 1995-12-12
Abstract: A portable missile launcher has both a direct viewing optical system (12) and a thermal or infrared imaging system (24) for use in detecting a target (16) and aiming the launcher.  The two systems (12, 24) are individually selectable for viewing via a single eyepiece (20) on manipulation of a lever (46) that positions a mirror (32) to either block the optical system while reflecting an infrared image to the eyepiece (20) or block the infrared image and allow the optical system to produce an image at the eyepiece.
Patent CA-2080626-C (CA)
Inventor: PAUWELS BART JOSEPH GERARD
IPC: H04L12/931
Filed: 1992-10-15
Granted: 1998-09-01
Abstract: The packet transfer control arrangement ensures that an information packet transferred from an input to an output of a packet switching network is available in correct form at that output.  It includes copying means (SE11/SEmn) located at the input of the network to make copies of the packet to be transferred, routing means (HA11/HAmn; SE11/SEmn) to transfer these copies independently from each other and possibly over at least partly distinct paths from an input to an output of the network and filtering modules (F11/Fmn) to filter out one of the copies at the output of the network.
Patent CA-2080839-C (CA)
Inventor: POLITYKA GREGORY A
IPC: B60Q3/02
Filed: 1992-02-20
Granted: 2003-05-13
Abstract: An automatic transmission lever position indicating device (10) comprising a housing (12) in-cluding a face wall structure (16) presenting within an opaque background a sequence of translucent characters (20) corresponding in sequence with the positions of the lever. A  circuit board is mounted within the housing including leads for receiving and transmitting signals including the input signals of the automatic transmission. An illuminating assembly is carried by the circuit board for illumi-nating all of the sequence of translucent characters (20) and additionally indicating by illumination one of the sequence of translucent characters (20) corresponding to the position the lever is in. The illuminating assembly includes a light emitting diode (32) associated with each translucent character (20) of the sequence, the light emitting diodes (32) being connected with the leads for energizing the light emitting diodes (32) in a manner determined by the input signals received so as to illuminate the one light emitting diode (32) associated with the translucent character (20) of the sequence corre-sponding to the position the lever is in so that the illumination of the associated one light emitting diode (32) provides said additional indication by illumination.
Patent CA-2083277-C (CA)
Inventor: SHULTZ EDWARD C
IPC: H04B1/10
Filed: 1992-03-25
Granted: 1997-07-08
Abstract: L'invention est un circuit de détection de brouillage et de mesure du niveau de brouillage dans un signal haute fréquence à modulation angulaire. Ce circuit comporte un amplificateur logarithmique qui reçoit les signaux haute fréquence à modulation angulaire et les amplifie logarithmiquement. Les signaux à modulation angulaire sont ensuite détectés pour que l'on puisse déterminer le niveau de la modulation de fréquence connexe. Finalement, un processeur programmé pour distinguer les composantes haute fréquence dues au brouillage des composantes provenant d'autres sources, détermine le rapport porteuse sur brouillage. On remarquera toutefois que le circuit de l'invention ne tient pas compte du rapport porteuse sur brouillage quand le niveau de modulation de fréquence à l'entrée de l'amplificateur logarithmique dépasse un certain seuil préétabli.
Patent CA-2085017-C (CA)
Title: Damper for a grapple
Inventor: BEAULIEU BENOIT LUDGER
IPC: F16F7/04
Filed: 1992-12-10
Granted: 1999-01-05
Abstract: A combination of a first element rotationally coupled to a second element, with a damper or snubber for slowing the rotational movement, which has a core with a tapered surface, the core being affixed to the first element.          A housing having a tapered surface is affixed to the second element. Axial alignment is maintained between the core and the housing and a selected friction force is developed between the tapered surfaces of the core and the housing so that movement of the joint is dampened.
Patent CA-2086404-C (CA)
Title: Triazolopyrimidine derivatives
Inventor: PEES KLAUS-JURGEN
IPC: A01P3/00
Filed: 1992-12-29
Granted: 2003-06-10
Abstract: This invention relates to certain triazolopyrimidine derivatives of the general formula (see formula I) in which R1 represents an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, cycloalkyl, bicycloalkyl or heterocyclyl group; R2 represents a hydrogen atom or an alkyl group; or R1 and R2 together with the interjacent nitrogen atom represent an optionally substituted heterocyclic ring; R3 represents an optionally substituted aryl group; and R4 represents a hydrogen or halogen atom or a group -NR5R6 where R5 represents a hydrogen atom or an amino, alkyl, cycloalkyl or bicycloalkyl group and R6 represents a hydrogen atom or an alkyl group; processes for their preparation; compositions containing such compounds and their use as fungicides.
Patent CA-2088047-C (CA)
Title: Cephalosporinase testing agent
Inventor: INOUE MATSUHISA
IPC: C12Q1/34
Filed: 1991-12-18
Granted: 1995-08-29
Abstract: A cephalosporinase testing agent comprising a cephalosporin antibiotic, a penicillinase inhibitor in an amount of 20% by weight or less based on the weight of the cephalosporin antibiotic, and a pH indicator which may be bromcresol purple is provided.   A cephalosporinase producing bacteria can be judged by smearing a sample containing bacteria to be tested on the testing agent and observing the color tone change.  According to this agent, cephalosporinase-active penicillinase producing bacteria are judged cephalosporinase-negative owing to the action of the penicillinase inhibitor, which may be clavulanic acid.  Therefore, since only cephalosporinase producing bacteria are judged cephalosporinase-positive, this agent enables error free judgment.
Patent CA-2090257-C (CA)
Title: Mailing machine including short sheet length detecting means
Inventor: ECKERT ALTON B JR
IPC: B65H7/06
Filed: 1993-02-24
Granted: 1999-07-13
Abstract: A mailing machine comprising, structure for feeding a sheet in a path of travel, a fence for defining a direction of the path of travel and against which an edge of a sheet is normally registered for alignment thereof in the path of travel, structure for printing postage indicia on a sheet in the path  of travel,  the printing  structure  including  a rotary postage indicia printing drum, the printing structure including structure  for driving the drum,  structure  for controlling the sheet feeding and drum driving structure, the controlling structure including a microprocessor,  the controlling  structure  including  structure  for  sensing  a sheet in the path of travel and providing a signal to the microprocessor when a sheet is fed into and out of blocking relationship with the sensing structure, the signal having a first magnitude when a sheet is not disposed in blocking relationship with the sensing structure, the signal having a second magnitude  when  a  sheet  is  disposed  in  blocking relationship with the sensing structure, the second signal magnitude having a time duration corresponding to an overall length of a sheet as measured in the direction of the path of travel, and the microprocessor programmed for commencing a count when a sheet is fed into blocking relationship with the  sensing  structure  of  a  predetermined time  interval corresponding to a  minimum overall sheet length acceptable for printing purposes determining whether the sheet is still in blocking relationship with the sensing structure at the end of the count, and implementing a shut-down routine if the sheet is not in blocking relationship with the sensing structure at the end of the count.
Patent CA-2099031-C (CA)
Title: Traffic management in packet communications networks
Inventor: AHMADI HAMID
IPC: H04L12/56
Filed: 1993-06-23
Granted: 1999-01-19
Abstract: In a packet communications network, the addition or deletion of a connection to the network by a user is governed by a link traffic metric which represents the effective capacity of each link in the network which participates in the packet connection route. The link metric is calculated in real-time and updated by simple vector addition or subtraction. Moreover, this link metric is also used to calculate leaky bucket parameters which govern the access of packets to the network once the connection is set up. A packet network using these link metrics and metric generation techniques provides maximum packet throughput while, at the same time, preserving grade of service guarantees.
Patent CA-2100248-C (CA)
Inventor: MCNEILL JAMES DUNCAN
IPC: G01V3/08
Filed: 1991-11-11
Granted: 1999-07-13
Abstract: Terrain resistivity is mapped by collecting data as to the vertical magnetic field ratio along a survey line by VLF survey techniques, and precision integrating rather than differentiating the data obtained. The received VLF signal is demodulated and low-pass filtered in a manner such as to preserve the DC component of the demodulated signal, and is then digitized and spatially integrated to obtain pseudo-resistivity readings along the survey line.