baber/WOPTO huggingface dataset:
Patent CA-2135223-A1 (CA)
Title: Optical channel adding/dropping filter
Inventor: GLANCE BERNARD
IPC: H04B10/291
Filed: 1994-11-07
Abstract: An optical filter is formed from an optical frequency routing device having N inputs and N outputs, where N > 1. A plurality of waveguides each couple one of the outputs to one of the inputs of the frequency routing device in a consecutive   order   to   form  a   series   of   optically transmissive  feedback  loops.     As  a  result  of  this arrangement,  an input signal composed of a plurality of multiplexed optical frequencies directed to an input of the routing device is first demultiplexed to yield a sequence of demultiplexed frequency components which are directed to the  outputs  of  the  routing  device.    The  demultiplexed frequencies may be  rerouted back to  the  inputs  of  the routing device via the optical feedback loops between the outputs and the inputs.  A remaining output that is not incorporated into one of the feedback loops is provided for receiving the resulting multiplexed output signal.  Rather than rerouting the demultiplexed frequency components back through the routing device via optical loops, one or more of the loops may be opened up to either drop, add, or drop and add a frequency component.
Patent CA-2135426-A1 (CA)
Title: Compositions and methods for inhibiting polymerization of ethylenically unsaturated monomers
Inventor: ARHANCET GRACIELA B
IPC: C07C7/20
Filed: 1994-11-09
Abstract: Disclosed are compositions and methods for inhibiting polymerization of ethylenically unsaturated monomers.  The compositions comprise a methoxyphenol and a phenylenediamine compound.  The methods comprise adding from about 1 to about 10,000 parts per million to the ethylenically unsaturated monomer during processing.
Patent CA-2136636-A1 (CA)
Inventor: BRADFORD ARLEEN M
IPC: C08G67/00
Filed: 1993-05-26
Abstract: A process for the preparation of co-polymers which comprises reacting carbon monoxide and one or more ethylenically unsaturated compounds under polymerization conditions in the presence of an added catalyst system based on (a) at least one metal selected from the Groups VI, VII and/or VIII of the Periodic Table; and (b) a stabilizing organic compound attached by a covalent bond via a carbon atom to (one of) the said metal(s) and containing at least one group capable of forming an additional, non-covalent, bond with (one of) the said metal(s). '   - '
Patent CA-2139181-A1 (CA)
Inventor: JOHNSTON LLEWELLYN L
IPC: B28B7/24
Filed: 1994-12-23
Abstract: A mold box for molding concrete products includes a pair of opposed substantially parallel end plates. A pair of opposed substantially parallel mounting brackets are positioned at opposite ends of the end plates and together with the end plates form a substantially rectangular mold box. A corner portion is defined adjacent the juncture of each mounting bracket with each end plate. At least one partition plate extends from one end plate to the other between the mounting brackets. An alignment pin is formed on the mounting bracket at each corner portion and an alignment bore coaxial with the pin is formed on the end plate. The bores are sized and positioned so that when each bore has its associated alignment pin therein the mold box assembly is sufficiently aligned to form molded products.
Patent CA-2139374-A1 (CA)
Title: Polyaminated ligands and metal complexes thereof
Inventor: MEYER DOMINIQUE
IPC: C09K3/00
Filed: 1994-12-30
Abstract: Poly(amino acid) derivatives, which are chelating agents of paramagnetic metal ions, in which at least 3 of the donor nitrogen atoms carry identical or different substituents, of formula CH (R1) - X , in which X represents CO2R a, CONR b R c or P(R d)O2H and R a, R b and R c, which are identical or different, represent H or optionally hydroxylated (C1-C8)alkyl, R d represents OH, (C1-C8)alkyl or (C1-C8)alkoxy and R1 represents a hydro-philic group with a molecular weight greater than 200 containing at least 3 oxygen atoms, with the proviso that at least 3 of the X groups are optionally salified acid functional groups.
Patent CA-2140138-A1 (CA)
Title: Temperature probe with fast response time
Inventor: PHILLIPS RICHARD W
IPC: G01K13/02
Filed: 1993-07-01
Abstract: A temperature probe measures the temperature of a fluid which moves relative to the probe.  The probe includes a housing, a transducer, and one or more fins.  The housing has a bore with a bore axis and carries at least a portion of the fluid along the bore axis.  The transducer has a sensing length, and the fin thermally couples to the transducer along substantially the entire sensing length.  The fin is also substantially aligned with the bore axis to promote laminar flow of the fluid in the bore.  In a preferred embodiment the transducer is held within a protective tube, and the fin attaches to the tube along a fin inner edge.  The fin also attaches along a fin outer edge to a radiation shield encircling the tube, the fin outer edge being shorter than the fin inner edge.
Patent CA-2140713-A1 (CA)
Title: Commutator motor
Inventor: RAICHLE DIETER
IPC: B25B21/00
Filed: 1995-01-20
Abstract: In a non-commutating-pole commutator motor, in particular as the drive of a power hand tool, a device for reversing the direction of rotation which includes a switch (8) for reversing the direction of current in the rotor winding, wherein the brush apparatus (4) is mounted immovably in the motor casing. The rotation of the plane defined by the commutating coils is chosen in such a manner that good commutation is assured in one of the two directions of rotation at full motor output. Furthermore, the switch (8) for reversing the direction of rotation yields the preferred direction of rotation in a first switch position and the opposite direction and makes effective in the switch position for the preferred direction a smaller number of turns of the field winding (1, 2) in the electric circuit of the motor than in the opposite direction of rotation of the motor.
Patent CA-2143435-A1 (CA)
Title: Device for chemical deposition in active vapor phase using a microwave plasma
Inventor: SEIBERRAS GHISLAINE
IPC: C23C16/448
Filed: 1993-09-23
Abstract: An apparatus for chemical vapour phase deposition activated by a plasma comprises a microwave excited plasma reactor with a reaction chamber (10), a microwave generator (20), a wave guide (21) providing non-resonant coupling, and means (40-54) for introducing at least one flow of a predetermined gas mixture into said chamber. The introduction means comprise, in sequence, means (40-43) for transforming the state of a deposition material precursor to turn it to a gas, means (41, 42) for supplying a vector gas capable of acting as a gas precursor for forming said predetermined gas mixture. Means (18) for injecting the predetermined gas mixture into the chamber (10) comprise an externally frustroconical nozzle having an injection orifice at one end shaped according to the injection orifice and the configuration of the column of plasma formed, said nozzle having heating and thermal insulation means for the gas mixture.
Patent CA-2145010-A1 (CA)
Inventor: THOMPSON HUGH R
IPC: A63B60/12
Filed: 1995-03-20
Abstract: The finger grooved hockey stick shaft has curved grooves sanded into the handle of the hockey stick. These grooves are on the down side of the shaft. The curved finger grooves provide for an improved top hand grip on the shaft of the stick. The curved grooves can be used on all wooden hockey sticks, including goalie sticks.
Patent CA-2146307-A1 (CA)
Inventor: HUEBSCHEN DAVID A
IPC: E05B9/08
Filed: 1995-04-04
Abstract: A lock mechanism has a cylindrical housing with an axial bore therethrough, and a key-controlled core rotatable within the bore between locked and unlocked conditions and removable from and installable in the bore in the unlocked condition. The core has a plug at its rear end which is mateably engageable in a socket on the front face of a shifter, for rotating the shifter within the bore in response to rotation of the core, and thereby operating a latch member coupled to the shifter. A radial tab on the housing is receivable in an arcuate groove formed in the outer surface of the shifter for limiting rotation of the shifter to facilitate retention of the shifter in the single rotational orientation upon removal of the core from the housing. An O-ring on the shifter frictionally inhibits rotation thereof.
Patent CA-2149421-A1 (CA)
Title: Method and apparatus for on line phasing of multiple nozzle ink jet printers
Inventor: EMERSON JOHN KEIGHTLY
IPC: B41J2/12
Filed: 1993-11-16
Abstract: A multiple nozzle continuous ink jet printer has a common nozzle block (10) with an array of nozzles (1, 2, 3, 4, 5, 6, 7) having respective charge electrodes (12) operated by respective drop charging circuits (45, 46, 47, 48, 49, 50, 51). A pilot nozzle (34) is provided in operative proximity to the nozzles (1 to 7) to monitor and detect changes in phase due to changes in ink parameters such as temperature, viscosity and pressure. A phase selection means (42) is arranged to alter the clock phase (33) applied to the pilot nozzle drop charging circuit (44) responsive to a sensor means (38, 40) thereby maintaining optimal charging by the pilot charge electrode (36). During system initialisation the correct break-off phase relationship is established for each charge electrode (12). During printing the phase selection logic (25, 26, 27, 28, 29, 30, 31) for the printing array (1 to 7) is altered based on the alteration of the clock phase to the pilot nozzle (34).
Patent CA-2153435-A1 (CA)
Inventor: CHRISTIE JULIE ANN
IPC: A47L15/44
Filed: 1995-07-07
Abstract: The present invention relates to a dispensing device for tabletted detergent compositions for use in automatic wahing machines. The dispensing device comprise an opening for the insertion of the tablet into the dispening device. The opening has a restraint means (fig. 1, 105, 106) for retaining the tablet in the dispensing device prior to its dissolution in the wash liquor. Said restraint means is child resistant.
Patent CA-2156501-A1 (CA)
Title: Non-Chrome Passivation for Metal Substrates
Inventor: GRAY RALPH C
IPC: C23C22/36
Filed: 1994-02-23
Abstract: Aqueous acid solutions for treating metal surfaces such as aluminum and galvanized steel are disclosed. The solutions are mixtures of organophosphates or phosphonates and chloride or fluoride. The treating solutions can be used in place of chromium solutions.
Patent CA-2161163-A1 (CA)
Title: Optical fiber ferrule and optical coupler constructed using the optical fiber ferrule
Inventor: TAKAHASHI MITSUO
IPC: G02B6/28
Filed: 1995-10-23
Abstract: An optical fiber ferrule with four optical fiber elements and an optical coupler constructed using the optical fiber ferrules are disclosed.  The optical fiber ferrule for an optical coupler has a throughhole whose center line is in parallel to a reference on the ferrule, for end of optical fiber element are inserted from one end of the throughhole to the other end thereof, wherein the relation between diameter of the end-face and diameter the optical fiber element is defined by the following formula;     d = (2 + 1)d1 + .delta..          In the formula: d denotes diameter of the throughhole at the center of the ferrule end-face, d1 denotes diameter of the optical fiber element,  and .delta. denotes allowance.  The optical coupler consists of the two optical fiber ferrules, a pair of graded index rod lenses, a thin film which partly transmits incident light and reflects the remainder, and fastening means.
Patent CA-2161827-A1 (CA)
Inventor: KATTKE GERALD WAYNE
IPC: H04Q11/08
Filed: 1995-10-31
Abstract: A data shift register receives and stores each time sample (digital word) carried by an inbound channel. A selector chooses for each time slot either the input digital word received during the same time slot or the digital word stored in the shift register during the previous time slot.  This selected digital word is transmitted on an input channel to a concentrator.  The selector is controlled by data stored in a control shift register which causes the selector to make its selection.
Patent CA-2162136-A1 (CA)
Title: Bicyclopolyazamacrocyclophosphonic acids, their complexes and conjugates, for use as contrast agents, and processes for their preparation
Inventor: KIEFER GARRY E
IPC: C07F13/00
Filed: 1993-05-06
Abstract: Bicyclopolyazamacrocyclophosphonic acid compounds are disclosed which may form inert complexes with Gd, Mn or Fe ions. The overall charge of the complex can be varied to alter the in vivo biolocalization.  Such complexes can be covalently attached to an antibody, antibody fragment or other biologically active molecule to form conjugates. The complexes and conjugates are useful as contrast agents for diagnostic purposes.  Processes for the preparation of the ligand, complex and conjugate are also disclosed.
Patent CA-2162842-A1 (CA)
Inventor: HOLFELD WINFRIED THOMAS
IPC: D06P1/39
Filed: 1994-05-20
Abstract: A process for increasing the washfastness of a fibrous article containing polyamide fibers dyed with anionic dye by treatment with an anionic dye fixing agent. The process includes immersing the article in a liquid bath of either an aqueous or substantially nonaqueous solvent medium for the fixing agent and heating to a temperature at least equal to the dyeing transition temperature of the fiber. The fixing agent is added to the bath so that the rate of fixing agent addition to the bath is the primary control over the rate of fixing uptake by the article at the early stages of aftertreating. In the later stages, the rate of fixing agent addition controls the concentration in the bath whereby the propensity for the fixing agent to agglommerate from the bath is decreased.
Patent CA-2164755-A1 (CA)
Title: Apparatus consisting of a cross-piece for gripping and raising, orienting and trasnporting helicopters in particular for ship decks
Inventor: ORTELLI AURELIO
IPC: B64F1/12
Filed: 1995-12-08
Abstract: Apparatus  for  gripping,  raising,   orienting  and transporting helicopters in particular for the decks of ships provided with longitudinal rails for guiding and constraining in an anti-tilting manner roller wheels supporting the apparatus itself consisting of a cross-piece, the longitudinal arm of which is movable in a direction parallel to the longitudinal axis (X-X) of the ship in engagement with said rail, the transverse arm of said cross-piece having joined to it a U-shaped frame which has parallel arms arranged parallel to the longitudinal axis (X-X) and is movable with respect to the cross-piece in a transverse direction with respect to the said axis (X-X) through the action of associated actuating means,  the free ends of said arms having joined to them the means for gripping the main wheels of the helicopter with associated orienting devices and means for raising the said ends once coupling and gripping of the wheels themselves has been performed.
Patent CA-2164893-A1 (CA)
Title: Postage accounting system including means for transmitting a bit-mapped image of variable information for driving an external printer
Inventor: SEESTROM FRANK E
IPC: G07B17/00
Filed: 1995-12-11
Abstract: A postage accounting system comprising:  structure means for accounting for postage;  printing structure externally of the accounting structure, the printing structure including a printing module and a computer for controlling the printing module, the printing module including printing apparatus and structure for sequentially feeding each item of a predetermined plurality thereof to the printing apparatus for printing thereon, the computer programmed for sequentially transmitting variable information for each item to the accounting structure, the variable information including at least a portion of the mailing address for each item; the postage accounting structure including structure for connecting the accounting module in communication with the printing structure, the accounting structure including structure for sequentially encrypting the variable information received for each item, the accounting structure including a microprocessor, the microprocessor programmed for transmitting a bit-mapped image of fixed information to the printing means for printing on each item, and the microprocessor programmed for separately sequentially transmitting a bit-mapped image of the encrypted information for each item to the printing structure for printing thereon.
Patent CA-2170124-A1 (CA)
Inventor: FELSEN KARL H
IPC: F41J3/00
Filed: 1996-02-22
Abstract: The present invention provides a cover and removable and replaceable target pattern appliques for use with dart boards, archery targets, and the like. The cover and target pattern appliques are simple to install on a dart board or archery target and allow the user to remove and replace the current target pattern with a variety of target patterns. The dart board cover comprises a cover body, means for holding the cover body on the dart board, and a front panel member for receiving a target pattern applique. A target pattern appliques can be fixed to the front panel, be removed, and be replaced with another target pattern applique quickly and easily.
Patent CA-2171166-A1 (CA)
Inventor: SEDLACK MARK A
IPC: A47D13/06
Filed: 1996-03-06
Abstract: An improved rotatable joint of the kind disclosed in U.S. Pat. No. 5,381,570 for foldable tubular playpen frames having a step in the tooth of a recessed sprocket portion in which a connecting gear rests.  In order to unlock the joint one must move the gear axially inwardly with a pushbutton as well as relieve the stresses on the joint by lifting up the tubular bars connected to the joint so that the gear may slip off the step.  In this way an additional factor of safety is built-in in order to unlock the joint, and accidental release is reduced.
Patent CA-2172474-A1 (CA)
Inventor: HART JAMES D
IPC: B60T15/22
Filed: 1996-03-22
Abstract: A simplified integrated full-function valve for heavy duty  brake systems  comprising  a  valve  body  having individual ports for fluid communication with spring brake chambers, service brake chambers, pressurized-air reservoir and   exhaust and for receiving pressurized control and supply  air  from  respective  sources  thereof;  internal passageways within the valve body providing selected fluid communication with the various ports; a plurality of valve modules within the valve body comprising a spring brake valve module, a relay valve module and a biased one-way pressure  protection  valve  module,   and  disposed  to selectively determine the fluid communications within said internal passageways and ports responsive to the respective positions  of the valve modules;  the  port  and related internal passageways for the spring brake chambers being fluid-communicatively-isolated  from  the  reservoir,  the service brake chambers and the control air, whereby the number of said internal passageways within said valve body is minimized;  the  simplified design  lending  itself to functional flexibility.
Patent CA-2173718-A1 (CA)
Title: Ultrasound transmission member having improved longitudinal transmission properties
Inventor: NITA HENRY
IPC: A61F2/00
Filed: 1994-10-11
Abstract: An elongate ultrasound transmission member (22) having regions (26, 28, 30, 32) of differing cross-sectional dimension or diameter. A sleeve, sheath or other damping member (40) may be positioned around a portion (30) of the ultrasound transmission member (22) to dampen or limit transverse side-to-side movement of such portion (30) of the member (22). The ultrasound transmission member (22) may be incorporated into a flexible catheter body (20) to form an ultrasound delivering medical catheter (10).
Patent CA-2176936-A1 (CA)
Title: Process for washing refillable plastic bottles
Inventor: ROBICHON PATRICE
IPC: B08B3/08
Filed: 1994-11-22
Abstract: Process for washing a container, for instance a bottle-type food container reusable for example for drinking products, characterised in that a container made of a homopolymer or copolymer or a mixture thereof is used, said container being transparent, with an average crystallinity rate of more than 30 % and a wall thickness of more than 0.35 mm for the body, 1.00 mm for the base, and 1,00 mm for the bottom; and in that the container is washed with an aqueous solution at a temperature of more than 70 ~C.
Patent CA-2177024-A1 (CA)
Title: Apparatus for and method of bending glass sheets
Inventor: SYKES DAVID
IPC: C03B23/027
Filed: 1996-05-21
Abstract: An apparatus for press bending glass sheets, the apparatus comprising an upper die, a suspension system for the upper die for suspending and vertically moving the upper die, a lower gravity bending mould and a plurality of spacer devices for spacing the upper  die  and  the lower mould  a selected distance from each other when the upper die presses a glass sheet on the lower mould, the suspension system being adapted and the spacer devices being configured to permit lateral movement of the die relative to the mould. There is also provided a method of press bending glass sheets.
Patent CA-2177550-A1 (CA)
Title: Door handle modular return spring cage assembly
Inventor: QURESHI KHURSHID A
IPC: E05B63/00
Filed: 1996-05-28
Abstract: A modular return spring cage assembly for door lock handles, consists of a door lock mounting chassis member having two opposed faces, at least one face having two opposed arcuate channels forming a circular groove in the face.  The groove has two split diametrically opposed spring bases each formed by two substantially equal spring stops projecting from radially outer and radially inner walls of the groove.  Two compression springs are slidably disposed within the channels and have length such that a slight compression is required to fit the springs between the split spring bases.  An arrangement for transmitting torsional motion between the two compression springs simultaneously and a door handle, and for limiting rotary motion of the handle is included.  A provision for positively retaining the springs and the torsional motion transmission arrangement on the mounting chassis member completes the modular assembly.          When so assembled, the spring cage module can be easily installed in or removed from a door preparation; and, because of its modularity, it may be designed to be reversible to provide enhanced tamper resistance.
Patent CA-2179033-A1 (CA)
Title: Cleaning device for endless conveyor
Inventor: HARPER CHRISTOPHER
IPC: B65G45/18
Filed: 1994-12-22
Abstract: A cleaning device for an endless conveyor of the type comprising an endless belt or the like having an upper conveyor run and a lower returm run which are guided over rollers at each end of the conveyor, said cleaning device being arranged to exert a cleaning action on the underside of the return run of the conveyor belt and to be driven directly or indirectly by the linear motion of the conveyor belt and/or from a drive train coupled with the conveyor belt, and in which the cleaning device comprises: a rotatable brush having its axis of rotation extending below the return run and transversely of the direction of travel of the return run, said brush having cleaning elements extending outwardly of the brush axis and in which the outer ends of the elements are engageable with the underside of the return run upon rotation of the brush; a cradle at one end of the brush on which the brush is rotatably mounted; means permitting adjustment of the spacing of the brush axis relative to the underside of the return run; and, biasing means for urging the brush axis towards the underside of the return run to press the outer ends of the cleaning elements into cleaning contact therewith.