baber/WOPTO huggingface dataset:
Patent CA-2048524-C (CA)
Title: Cable holding device
Inventor: NATTEL WILLIAM
IPC: H02G3/08
Filed: 1991-08-07
Granted: 1996-10-08
Abstract: A cable holding device for holding a communi-cation cable beside an electrical power outlet box.  The cable holding device comprises  a frame  having a main portion and an integral base portion, extending at a right angle to the main portion of the frame, for attachment to the side wall of a power outlet box with a front face of the main portion of the frame preferably substantially coplanar with a front face of the outlet box defined by the front edges of the walls of the outlet box.  The frame has at least one tab to which a communication cable may be secured.  A variety of tabs are disclosed, some of which have a hole connected with an access slot for receiving the cable.  The tab may be manually bent to enlarge the slot to allow passage of the cable to the opening after which the slot may be at least partially closed to retain the cable in the opening. Alternatively, the tab may be elongated with a length sufficient to secure the cable to it by typing a knot in the cable or may have a V-shaped notch for receiving and retaining the cable.
Patent CA-2051210-C (CA)
Title: Cutting of organic solids by continuous wave ultraviolet irradiation
Inventor: SRINIVASAN RANGASWAMY
IPC: B23K26/00
Filed: 1991-09-12
Granted: 1995-05-30
Abstract: A beam (12) of continuous wave ultraviolet light having a wavelength that is absorbed by an organic solid (20) is focused to a spot (18) on a surface of the organic solid (20).  Relative motion is imparted between the beam (12) and organic solid (20) at a rate that defines, together with a dimension of the spot (18), an effective pulse width.  Within prescribed ranges of the wavelength, power density and effective pulse width, a new cutting regime was discovered whereby organic solids can be cut at rates and with a quality of cuts previously requiring pulsed ultraviolet laser sources.
Patent CA-2051266-C (CA)
Inventor: SWISHER RICHARD L
IPC: C23C14/00
Filed: 1991-09-12
Granted: 2002-02-19
Abstract: Abstract A flexible metal-film laminate can comprise a layered film structure having a metal layer securely bonded to a film layer.  The laminate contains a unique metal-oxide attachment structure between the film and metal layer comprising randomly distributed regions of metal-oxide.         The peel strength of such a laminate is significantly improved over prior laminates and is resistant to peel strength reduction due to environmental stress.  The preferred metal-film laminates made with polyester or polyimide can be used in the manufacture of high-quality, low cost, flexible printed circuit boards.
Patent CA-2051586-C (CA)
Title: Cathode-ray tube having implosion protection band
Inventor: MARESCA ALFREDO
IPC: H01J29/87
Filed: 1991-09-17
Granted: 2002-01-08
Abstract: An improved cathode-ray tube has a shrink-fit implosion protection band surrounding a portion of the tube envelope. The band includes a plurality of lugs for supporting the tube. The improvement comprises the band including a plurality of embossments arranged around the band. The embossments extend outwardly from the tube for a preselected distance to form cavities between the tube envelope and the embossments. The embossments include smooth outer surfaces to which the lugs are attached by welds. The embossments have indentations at the locations of the welds that extend into the cavities. The cavities have depths greater than the depths of penetration of the indentations into the cavities. By utilizing the embossments, the indentations, caused by welding, remain out of contact with the tube envelope.
Patent CA-2053132-C (CA)
Title: Method of discriminating quality of die-cast article and die-casting process using same
Inventor: TAKAGI HIROMI
IPC: B22D17/32
Filed: 1991-10-10
Granted: 1997-05-06
Abstract: A method of discriminating the quality of die-cast articles when casting an article by pressurizing and filling a molten metal into a die through an injecting sleeve by means of an injecting plunger, the method comprising the steps of:  measuring at least one of the operational parameters of a die temperature, a gas pressure in a die cavity, a molten metal pressure in a die cavity, an injecting sleeve temperature, an injecting plunger travel speed, and an injection plunger displacement; and discriminating the quality of a die-cast article by comparing the measured parameter value with a reference value determined on the basis of a predetermined interrelationship between the operational parameter and an allowance limit of the amount of a casting defect.  A die-casting process using the method is also disclosed.
Patent CA-2053597-C (CA)
Title: Satellite communications system
Inventor: SCHWENDEMAN ROBERT JOSEPH
IPC: H04W84/02
Filed: 1991-10-16
Granted: 1995-08-22
Abstract: A selective call receiver transmission system for transmitting a message to at least one selected selective call receiver (18) of a plurality of selective call receivers comprises a transmitter for transmitting information including the message thereto. At least one satellite (11) receives the information and transmits the message to the selective call receiver (18) and subsequently retransmits the message from a different location to the selective call receiver.
Patent CA-2056065-C (CA)
Inventor: JACOBS ROBERT T
IPC: C07D209/24
Filed: 1991-11-22
Granted: 2003-07-29
Abstract: A process for the preparation of a 3-alkylated indole, which comprises:-a) reacting a N-(2-nitrostyryl) enamine with an alkylating agent to afford an imine salt, b) optionally reacting the imine salt with water to afford a (2-nitrophenyl)acetaldehyde, and c) reacting the imine salt or the (2-nitrophenyl)acetaldehyde with a reducing agent capable of selectively reducing the nitro group, to afford the desired 3-alkylated indole.
Patent CA-2060310-C (CA)
Inventor: GERSON IRA ALAN
IPC: G10L19/12
Filed: 1990-05-02
Granted: 2001-07-17
Abstract: In a vector excitation source digital speech coder utilizing vector excitation, candidate excitation sources (111, 121) are con-sidered independent of certain pitch parameters. Once a particular excitation source has been selected, the excluded pitch par-ameter may then be optimized, resulting in an overall improvement in speech quality.
Patent CA-2061033-C (CA)
Title: Antennae
Inventor: PYE MICHAEL RICHARD
IPC: H04B1/38
Filed: 1992-02-11
Granted: 1998-09-29
Abstract: An antenna system for portable electronic apparatus, particularly for the handset of a cordless telephone system, and comprising two antenna, a first (shown) mounted on a flap (2) and comprising a groundplane 5 and active monopole 4 fed by a coaxial feed 6 from electronic circuitry (not shown) in the main section of the handset 1.   The flap is pivotally connected to the main section of the housing 1, and is folded down against the main section when not in use. Another similar antenna is fitted in the main section, and both antennae are connected to the transceiver circuitry via the same node.   The two antennae are specially designed so as to introduce deliberate mismatch so as to provide an effective switching system between the two antenna without the need for separate circuit elements.
Patent CA-2061564-C (CA)
Title: Method and apparatus for transmitting time-varying picture signals
Inventor: OHKI JUNICHI
IPC: H04N7/50
Filed: 1992-02-20
Granted: 1997-04-15
Abstract: Time-varying picture signals of a plurality of channels are predictively coded by utilizing the interframe correlation, and are multiplexed at the transmitting side. After transmission the signals are separated at the receiving side for each channel, and a channel is selected and switched for decoding. When the receivingchannel is switched over to another channel, a decoding error can occur and a reproduced screen can collapse since the predicting signals do not coincide witheach other at the transmitting and receiving sides. Therefore, when the plurality of channels is selectively switched for decoding by using a single decoder, the refresh is repeated at predetermined time intervals in a short period of time by utilizing the intraframe correlation when the coding is carried out at the transmitting side. Thus, even if the channel is switched, an excellent reproduced screen may be immediately obtained. However, during the refresh, the compression ratio is reduced comparedwith that of the bit rate when a normal interframe correlation is carried out. Therefore, when the refresh is carried out, the amount of transmitted information for part or all of the channels other than the refreshed channel is compressed and, conversely, the amount of transmitted information for the refreshed channel is increased by the compressed amount and allocated. Thus, even if the channel is switched at the receiving side, the decoded image for the newly-selected channelcan be promptly reproduced.
Patent CA-2070683-C (CA)
Title: Pressure controlled fresh air supply ventilation system using soil gas pressure as a reference, and method of use
Inventor: TRAUDT JON E
IPC: F24F11/04
Filed: 1990-12-19
Granted: 1995-05-16
Abstract: A ventilation system having an inlay air duct system (12) which enters a house through an outside wall (10). The inlet air duct system (12) has integrated therein an air prefilter (13) and an inlet air blower (14). The ventilation system allows for a user adjustable minimum inlet fresh air volume inflow rate and/or an exhaust air volume outflow rate into and/or out of an enclosed space, and provides for automatic adjustment of the volume flow rate(s) to maintain the air pressure inside the enclosed space at a level which is determined by reference to the relatively constant soil gas pressure beneath the enclosed space, or pressure under the floor of the lowest occupied level.
Patent CA-2074002-C (CA)
Title: Self-administered survey systems, methods and devices
Inventor: COHEN GERALD B
IPC: G06Q30/02
Filed: 1992-07-16
Granted: 2000-01-11
Abstract: Self-administered survey devices include a display, an input device, a memory and a control device which controls the display to show at least one survey question and control the memory to store a response to the at least one question. A system and method for carrying out self-administered surveys utilize a centralized survey data processor and a plurality of self-administered survey devices for storing survey data entered by respective respondents and wherein survey data is wirelessly transmitted from the plurality of self-administered survey devices to the centralized survey data processor.
Patent CA-2082439-C (CA)
Title: Overcenter toggle latch apparatus
Inventor: HARRISON SIMON J
IPC: E21B25/02
Filed: 1992-11-09
Granted: 2004-05-11
Abstract: A drilling tool, for example a core barrel inner tube assembly or a drilling bit, is attached to the inner end of a latch body which is removably seatable on a landing shoulder of a drill string. The inner end of the latch body mounts a drilling tool such as a core receiving tool or a drag bit. An overcenter toggle latch assembly is mounted to the latch body, the latch assembly including a pair of latches having inner ends pivotally mounted to the latch body, toggle links that at their one ends are pivotally connected to the outer ends of the latches and at their opposite ends have a retractor link extended through elongated slots. The retractor pin is extended through an axially elongated slot in the latch body to limit the axial movement of the pin between a position that the latches are locked in a latch seated position and a position retracting the latch body and the drilling tool attached thereto. An overshot coupling member and a latch retractor tube are provided for retracting the retractor pin including moving the latch body and the structure depending therefrom outwardly through the drill string.
Patent CA-2083998-C (CA)
Inventor: SCURI PIERA
IPC: F21S2/00
Filed: 1992-11-27
Granted: 2004-03-16
Abstract: To allow environments to be lit with light having characteristics as close as possible to natural light, the appliance comprises a frame supporting pluralities of light sources, the light from which is reflected to the outside of the appliance by a reflecting screen via a translucent screen. The light sources are of different color temperatures in terms of illumination and are electrically powerable separately via a central control unit in a such a manner as to enable them to provide a luminous flux of variable intensity.
Patent CA-2084341-C (CA)
Title: Redundancy system switching control system
Inventor: MIYAZONO TAKASHI
IPC: H04B1/74
Filed: 1992-12-02
Granted: 1998-02-10
Abstract: A redundancy system switching control system includes two packages and logic circuits.  The two packages are alternately switched as an operating system package and a standby system package.  The logic circuits are arranged on the two packages, respectively, and each of the logic circuits outputs selection information/non-selection information to a remote package using self-package alarm information, self-package forcible switching information, remote-package alarm information, and selection information/non-selection information as four inputs.          Each of the logic circuits, when a self-package serves as the operating system package, outputs selection information to the remote package by receiving any one of non-selection information from the remote package and the self-package alarm information when the self-package does not receive the remote-package alarm information.          Each of the logic circuits, when the self-package serves as the standby system package, outputs non-selection information to the remote package by receiving any one of selection information from the remote package and the self-package forcible switching information.
Patent CA-2090070-C (CA)
Title: Method and device in a crawling operation of a press felt in a paper machine
Inventor: HIRSIMAKI MARTTI
IPC: D21F3/00
Filed: 1993-02-22
Granted: 1997-10-21
Abstract: The invention relates to a method and device in the crawling operation of a press felt in a paper machine. The press felt is passed as a closed felt loop through a nip defined between a center roll and a press roll in a press section of the paper machine.  The felt is driven during the running operation of the paper machine by means of a nip drive between the center roll and the press roll of the press.  When the paper machine is not operating, and the nip between the center roll and the press roll in the paper machine is open, the felt is moved, so as to moisten the new felt, by means of the crawling drive by rotating the drive roll.  An axle of the drive roll is permanently connected to a drive rim.  During the crawling operation, a drive wheel of a hydraulic device is brought into engagement with the drive rim.          When the crawling drive of the felt is not in operation, the drive roll is switched to the free revolving position by shifting the drive wheel of the hydraulic device apart from the drive rim.          The drive wheel is operationally connected to the drive rim.
Patent CA-2091782-C (CA)
Inventor: SCHILLING DONALD L
IPC: H04B1/7117
Filed: 1991-11-14
Granted: 2000-07-18
Abstract: An apparatus for adapting to receive a particular path, having the greatest amplitude, of a spread-spectrum signal with multipath. The spread-spectrum signal is modulated by a chip-code. A chip-code generator (401) generates a chip-code signal having the same chip-code as the spread-spectrum signal. A plurality of shift registers shift the chip-code signal by a plurality time delays. First and second ring counters (405; 409) generate first and second sequencing signals for controlling first and second switching devices (407; 411), The first switching device successively switches between a plurality of taps of the shift registers in a direction of increasing or decreasing delays for generating the chip-code signal with the first time delay. The second switching device successively switches between the plurality of taps of the shift registers in a direction of increasing or decreasing delays for generating the chip-code signal with a second time delay. A first correlator correlates the spread-spectrum signal received at the input with the chip-code signal with the first time delay. A second correlator correlates the spread-spectrum signal received at the input with the chip-code signal with the second time delay. A comparator generates first and second comparator signals by comparing the outputs of the first correlator and the second correlator.
Patent CA-2092649-C (CA)
Title: Human body detection system
Inventor: FUKUDA MASAHIKO
IPC: G01V8/20
Filed: 1993-03-12
Granted: 1996-12-10
Abstract: In order to detect a position where a human body may exist with the aid of a single infrared detector,  a human body detecting system comprises a condenser for the provision of a plurality of effective detection regions each having different areas and provided within partial detection regions.          When the human body moves across one of the effective detec-tion regions, the infrared detector detects the infrared rays radiated from the human body to produce signals.  Accordingly, the thus output signals present different frequencies depend-ing on the effective detection regions, whereby the differ-ences in the fluctuation times of the output signals and in the frequencies are discriminated by a decision apparatus to consequently detect which partial detection region includes the human body.
Patent CA-2094712-C (CA)
Title: One-piece spinner assembly
Inventor: FOSTER DONALD D
IPC: B05B11/00
Filed: 1991-10-16
Granted: 1998-12-22
Abstract: A cap, spinner, and discharge nozzle assembly for use with a liquid dispensing apparatus such as a trigger sprayer. The spinner assembly can be externally fitted to the discharge nozzle, and includes an annular chamber (32) surrounding a central post (38) having a swirl chamber (44) in its top. The central post (38) includes longitudinal grooves (42), communicating with tangential grooves (46) in an annular wall (45) defining the swirl chamber (44). Apertures (40) are provided in the base of the annular chamber (32) such that pressurized liquid flows through the apertures (40) and into the annular chamber (32), with a resulting reduction of velocity, and then along the longitudinal grooves (42) and through the tangential grooves (46) into the swirl chamber (44). A cap is provided which variably engages the discharge nozzle and which has at least a central projection (51) on the inner side of its front face, and preferably an annular groove (52) formed by an outer projection (53) surrounding the central projection (51). The central projection (51) may reversibly seal against the floor and/or annular wall (45) of the swirl chamber (44), and the annular groove (52) may seal over the annular wall (45).
Patent CA-2095932-C (CA)
Title: Luteinizing hormone releasing hormone analogs
Inventor: SHAOBO XIAO
IPC: A61K38/00
Filed: 1991-11-08
Granted: 2003-02-25
Abstract: This invention consists of two aspects: 1) the method of design and synthesis of LHRH antagonists; 2) the products there-after obtained by using the above method: Taking (NAc-D2Nal1, DpClPhe2, D3Pal3, Ser4, Tyr5, DArg6, Leu7, Arg3; Pro9; DA-la10)NH2 as the parent compound, a series of new analogs expressed as (NAc-D2Nal1, AA2, AA3, Ser4, AA5, AA6, Leu7, AA3,Pro9; DAla10)NH2 are obtained by fine modification of both lipophilic area and alkaline area of the molecule of the parent compound.In this way, the high antiovulatory activity of the parent compound can be maintained and the histamine-releasing activity can be reduced to the level so as to meet the clinical requirement.
Patent CA-2098050-C (CA)
Title: Dispositif de projection electrostatique d'un produit de revetement en poudre a tete d'ionisation tournante
Inventor: CHABERT PIERRE
IPC: B05B5/04
Filed: 1993-06-09
Granted: 2005-07-26
Abstract: Tête d'ionisation tournante pour l'application électrostatique d'un mélange air-poudre, notamment pour recouvrir des objets de poudre de peinture thermofusible. Selon l'invention, la tête d'ionisation, entraînée en rotation par une turbine comporte un déflecteur comportant ou constituant une électrode de charge tandis qu'une contre-électrode est agencée axialement en retrait de la tête d'ionisation.
Patent CA-2102867-C (CA)
Title: Switch bypass for a public safety calling system
Inventor: MULROW ROBERT J
IPC: H04Q3/00
Filed: 1993-11-10
Granted: 1998-12-29
Abstract: A switch bypass (10) for a Public Safety Calling System (12) having a first switch A for routing telephone calls, a second switch B for routing telephone calls, and a device 14a and 14b for bypassing the first switch A responsive to a failure in the first switch, and for transferring the cell to the second switch.
Patent CA-2106844-C (CA)
Inventor: BROWNLIE JOHN DAVID
IPC: H04L27/34
Filed: 1992-03-27
Granted: 1998-12-01
Abstract: Des données sont transmises par modulation d'amplitude en quadrature pour sélectionner des symboles de transmission parmi deux constellations de points de signal différentes (ou plus), une commutation de ces constellations étant utilisée pour faciliter la transmission d'un nombre moyen de bits par symbole non entier et/ou la synchronisation des blocs. Une conformation en treillis (dans laquelle une redondance est introduite et une sélection des «régions» de constellation est effectuée (206) sur un certain nombre de symboles pour minimiser la puissance d'émission) est utilisée; la commutation (205, 209) est effectuée de façon que l'information appropriée sur la puissance (qui est conservée dans les mémoires (207, 208)) soit mise à la disposition de la constellation utilisée pour chaque symbole particulier. Une synchronisation peut également être effectuée en substituant, à l'extérieur de la boucle de commande de puissance, un symbole provenant d'une région externe à un symbole sélectionné dans une région interne d'une constellation. Dans une autre concrétisation de l'invention, une commutation de constellations est effectuée à l'intérieur de blocs contenant A symboles, où A n'est pas une puissance de 2.
Patent CA-2109978-C (CA)
Title: Antifog film laminates
Inventor: TONEY GLORIA G
IPC: B29C48/22
Filed: 1993-11-25
Granted: 2004-02-24
Abstract: A laminate comprises a first substrate including a first layer of a blend of a polyolefin and an antifogging agent, and a bonding layer of polyolefin, preferably an ethylene unsatu-rated ester copolymer or low density polyethylene; a second substrate bonded to the bonding layer of the first substrate and comprising polyester or nylon; and a conventional adhesive between the first and second substrates; the bonding layer pre-treated by corona discharge before wind-up, and again treated by corona discharge before lamination. The laminates of the present invention exhibit much improved bond strength compared with conventional laminates.