baber/WOPTO huggingface dataset:
Patent CA-2131124-A1 (CA)
Title: Faraday rotator
Inventor: SHIRAI KAZUSHI
IPC: G02F1/09
Filed: 1994-08-30
Abstract: ABSTRACT  OF THE DISCLOSURE       The present invention provides a means of erasing the magnetic hysteresis with respect  to a   rare-earth iron garnet single-crystal film  with large magnetic hysteresis which is an obstacle  in using as a Faraday  rotator although the film has extremely small saturated magnetic field intensity.       In the present invention, a permanent magnet is posi-tioned on a part of a rare-earth iron garnet  single crystal.   According to the present invention, the magnetic hystere-sis can be erased with  respect  to a   rare-earth  iron  garnet single-crystal film  with large magnetic hysteresis which is an obstacle in using as a Faraday  rotator although the film has extremely small saturated magnetic field intensity. As the  re-sult, an optical switch utilizing Faraday effect and a magneto-optical sensor with a Faraday rotator applied a  rare-earth iron garnet single-crystal  film which has   small  saturated magnetic field intensity  are enabled to utilize practically.
Patent CA-2131960-A1 (CA)
Title: Attachment and method of attaching
Inventor: SLATER JULIAN B B
IPC: G09F23/00
Filed: 1994-09-13
Abstract: ABSTRACT        The  invention relates  to  an attachment and a method of securing an attachment.   The invention also relates to a coiled cable arrangement and a method of mounting an attachment on a coiled cable.  The invention is particularly, although not exclusively, applicable to attachments for coiled cable telephone cables.
Patent CA-2134047-A1 (CA)
Title: Mix void catalyst particle system
Inventor: BARTHOLDY JESPER
IPC: B01J35/00
Filed: 1994-10-21
Abstract: Process and catalyst system for the hydrotreating of a hydrocarbon feedstock, wherein the feedstock being passed through a fixed bed catalyst system of a hydrotreating catalyst comprising a physical mixture of high void catalyst particles and low void catalyst particles, which particles are mixed in different amounts in different layers of the catalyst bed so as to obtain within the fixed bed catalyst system a layered structure with different layers having different mixing ratios of the high and low void particles.
Patent CA-2136620-A1 (CA)
Title: Aqueous polyurethane dispersions
Inventor: PEARS DAVID A
IPC: C08G18/10
Filed: 1993-05-24
Abstract: Aqueous polyurethane dispersion in which the polyurethane is made by chain-extension of a prepolymer, and optionally including another polymer (particularly acrylic), wherein the prepolymer incorporates a dimer acid-based polyesterpolyol and also a low molecular weight cycloaliphatic and/or aromatic polyol and/or polyacid and wherein any low molecular weight cycloaliphatic or aromatic polyol is incorporated as a component of the polyester polyol and/or is used as such in the prepolymer synthesis, and any low molecular weight cycloaliphatic or aromatic polyacid is only or substantially only used as such in the prepolymer synthesis.
Patent CA-2136689-A1 (CA)
Title: Beverage container with bottom cavity
Inventor: NASRALLAH MAURICE
IPC: B29C65/74
Filed: 1994-11-25
Abstract: A unitary beverage container includes a main body defining a container volume in which a beverage is contained. A top of the main body includes a channel disposed horizontally therealong as well as an uppermost bisecting ridge extending from one side of the main body to the other and a respective remainder portion on each side of the ridge sloping downwardly away from the ridge. A bottom of the main body has a lowermost continuous base surface and a central concavity extending inwardly therefrom. The central concavity is particularly formed by a horizontal recess surface and a peripheral recess band sloped radially inward. A flexible straw has a proximal end fluidly connected with the container volume and a distal end having an aperture therein which is located in the channel of the top. A holding mechanism removably holds the distal end of the flexible straw in the channel. In order to fill the beverage container, the bottom includes a filling conduit extending from the central concavity. This filling conduit is heated on the interior only at a location in the central concavity, and then pinched off and closed horizontally in the central concavity after filling to seal the container.
Patent CA-2137421-A1 (CA)
Title: Selective herbicidal composition
Inventor: GLOCK JUTTA
IPC: A01N43/00
Filed: 1994-12-06
Abstract: A selective herbicidal composition for controlling grasses and weeds in crops of cultivated plants, comprising, in addition to inert carriers and adjuvants, as active component a mixture of a) a herbicidally effective amount of a N-phenylsulfonyl-N'-triazinylurea of formula I                         (I) wherein the substituents are as defined in claim 1, and b) to antagonise the herbicide, an antidotally effective amount of a quinoline derivative of formula IIa          (IIa), wherein R10 is hydrogen, C1-C8alkyl or C1-C8alkyl which is substituted by C1-C6alkoxy orC3-C6alkenyloxy; and X2 is hydrogen or chloro; or of a 1-phenylazole-3-carboxylic acid derivative of formula IIb    (IIb) wherein E is nitrogen or methine; R11 is -CCl3, phenyl or halogen-substituted phenyl; R12 and R13 are each independently of the other hydrogen or halogen; and R14 is C1-C4alkyl.
Patent CA-2139067-A1 (CA)
Inventor: MILNER JOHN E
IPC: E21B23/06
Filed: 1994-12-23
Abstract: A tool, known as FM/WL Tool, utilized with a wireline adaptor kit would be secured to the lower end of a wireline setting tool.  The adaptor kit would release from the tool when sufficient setting force is applied, and is retrieved with the wireline setting tool.  The wireline setting tool provides for a telescoping action and sufficient force in order to push the outer parts down from the top as the inner mandrel of the tool and the stinger, top sub and bottom  sub  are  pulled  upward.    The  upward  pull  is transferred to a sleeve by a plurality of lugs on bottom sub assembly.  This action causes the packer tool to set by compressing rubber elements   and holding the  elements compressed by a first upper set of slips and a second lower set of slips wedged between the casing and the upper cone and the lower cone.  During the setting action, the pickup sleeve and parts attached will move down until the top slips are wedged against the top cone.  The spring, which would be fully open when the tool is lowered downhole, will be compressed until the pickup sleeve adaptor shoulders against  spring  cap.    A  lock  ring  holds  the  spring compressed.  Bottom sub assembly includes a threaded nut having lugs protruding into the straight slots and sleeve. The lugs transfer the upward setting force from the mandrel to the sleeve and prevent upward movement of the inner mandrel after the packer is set.   The threaded nut is attached to the bottom sub assembly with a  left hand thread.  Multiple right hand rotations of the inner mandrel and bottom sub assembly will release the threaded nut and allow the inner mandrel to move upward.  This right hand rotation and upward movement of the inner mandrel is the action required for releasing the packer in order to allow it to be retrieved from the hole.     Upper movement of the inner mandrel brings a small outside surface under the seal creating a passage that allows the pressure to equalize.  This upward movement also raises  the  lock ring releasing the  spring compression against the top slips and causes a shoulder on the top sub to contact a shoulder on the pickup sleeve.   Pulling against  the  shoulder  will  pull  the  top  slips  loose, releasing  the  packer.    Continued  upward movement,  of course, would completely retrieve the FM/WL packer from the hole.
Patent CA-2140712-A1 (CA)
Title: Method and apparatus for forming pads
Inventor: LEIGH RALPH P
IPC: B65H39/042
Filed: 1995-01-20
Abstract: A method and apparatus for forming a pad (1) having a plurality of sheet elements  (2) interconnected along an edge portion (3) thereof by adhesive tape (4).  The method includes feeding a strip of sheet element material (29) to a tape applying station (46), applying adhesive tape to the sheet element strip in such a manner as to overlap an edge portion (3) thereof to form a composite band (56) of material,  superimposing  a  plurality  of  layers  of  the composite band (56) at a pad formation facility (59  in order  that  the  overlapping  tape  portion  of  one  layer adheres  to  an  immediately adjacent  layer to form a pad block.
Patent CA-2141392-A1 (CA)
Title: Recombinant infectious bovine rhinotracheitis virus mutant, methods for the production of same, and vaccines containing the same
Inventor: REBORDOSA XAVIER
IPC: C12N15/38
Filed: 1995-01-30
Abstract: Infectious Bovine Rhinotracheitis Virus mutant, methods for the production of same, and vaccines containing the same. The obtained virus, characterized as BHV-1 FM gll-, results from one deletion, from one insertion, or from one substitution (deletion and insertion) in the gene gll (gE) from Bovine Herpesvirus type 1 (BHV-1), which fails to produce any antigenic polypeptide of glycoprotein gll (gE). BHV-1 FM gll- virus is utilized in the preparation of vaccines for Infectious Bovine Rhinotracheitis. These vaccines allow to distinguish serologically between animals vaccinated with the same and animals infected with field strains of IBR virus.
Patent CA-2142546-A1 (CA)
Inventor: TAYLOR RICHARD S
IPC: G01V3/17
Filed: 1995-02-15
Abstract: In electromagnetic instruments that continuously transmit and receive low-frequency fields in order to sound the earth, it is known to change the orientations of the transmitter and receiver to alter the depth of sounding. In this invention, a novel arrangement of one transmitter and two receivers enables simultaneous sounding of the earth to two distinct depths. The transmitter and receivers may be secured to an arcuate boom which, at the same time, allows a single operator to carry the instrument conveniently across the earth to be sounded, and positions the transmitter and receivers near the earth to increase the depths of sounding.
Patent CA-2143389-A1 (CA)
Title: Microcellular Polyurethane Elastomer and Process for Producing the Same
Inventor: NAGASHIMA TOHORU
IPC: C08G18/76
Filed: 1995-02-24
Abstract: A microcellular polyurethane  elastomer  obtained  by mixing  an NCO-terminated  prepolymer,   an  OH-terminated prepolymer and a foaming component with stirring to cause foaming and curing is disclosed, in which the NCO-terminated prepolymer is (A) a prepolymer obtained by reacting a polyester polyol (a) having a number average molecular weight of 1,000 to 3,000 and diphenylmethane-4,4'-diisocyanate  (MDI)  or  (B)  a partially crosslinked prepolymer obtained by further reacting the reaction product of polyester polyol (a) and MDI with a low-molecular weight polyol, the OH-terminated prepolymer is (A) a prepolymer obtained by reacting polyester polyol (a) with a polyisocyanate or  (B) a prepolymer obtained by reacting polyester polyol (b) and/or a polyether polyol both having a number  average molecular weight  of  500  to  3,000  with  a polyisocyanate, and the foaming component contains water as a main  blowing  agent,  which  elastomer  exhibits  improved resistance to fatigue failure and permanent set in a fatigue test while retaining advantages of the use of MDI.
Patent CA-2144691-A1 (CA)
Title: Air purifier apparatus with an electrostatic filter
Inventor: DE MARCO DOREANO
IPC: B03C3/155
Filed: 1995-03-15
Abstract: In an air purifier apparatus, an electrostatic filter is detachably and operatively connectable to an electrical contact which in turn is connected to a terminal of a power supply.  The electrostatic filter is also detachably and operatively connectable to a second electrical contact which is connected to an alarm device.  When the electrostatic filter is properly mounted within the air purifier apparatus, the two electrical contacts are short-circuited, thus electrically connecting the power supply to the alarm device through the electrostatic filter.  The alarm device provides an indication that the electrostatic filter is properly mounted within the air purifier apparatus when energized by the power supply.
Patent CA-2148524-A1 (CA)
Inventor: SCHNEIDER ANTHONY J
IPC: A61G17/08
Filed: 1995-05-03
Abstract: A storage and memorial device for cremation ashes comprises a candlestick which is modified relative to a conventional candlestick by the addition of a receptacle and closure plug for that receptacle at a base of the vertical bore of the candle stick. The receptacle is used to contain cremation ashes as a memorial for the departed loved one with the memorial effect being enhanced by the spiritual effect of burning the candle.
Patent CA-2149229-A1 (CA)
Inventor: ENGLERT KLAUS
IPC: H05K13/04
Filed: 1993-11-20
Abstract: A plant for automatically removing electronic components (12, 14, 16) mounted on printed circuit boards (1) has a lighting device for lighting the printed circuit boards (1), an optical sensor, an image processing system and various devices (11, 13) for removing the components (12, 14). The image processing system recognises the coordinates of the contours and preferably also the types of the components (11, 13) from the output signals supplied by the optical sensor (4) and controls the device (11, 13) for removing the components (12, 14). Alternatively, the contours of the components (12, 14) are recognised by infrared irradiation. Finally, a process is disclosed for removing components from boards (1) by means of the disclosed plant.
Patent CA-2149411-A1 (CA)
Title: Flame retardant brominated styrene graft latex compositions
Inventor: WANG JIN-LIANG
IPC: C08F291/02
Filed: 1993-11-18
Abstract: Flame retardant latex compositions are disclosed which include natural or synthetic latex grafted with ring-halogenated, ethylenically unsaturated aromatic monomers. The graft latex is used alone or in combination with non-grafted natural or synthetic latex.  The compositions are useful as coatings for a wide variety of applications, including fabric backcoatings, carpetings, paints, adhesives, sealants, caulks, non-woven binders and so on.
Patent CA-2151288-A1 (CA)
Title: Clamp
Inventor: VIRZI AL
IPC: E05C19/18
Filed: 1995-06-08
Abstract: A telescopic locking device for use with coplanar sliding panels  on  a  vehicle  provides  improved  means  for  preventing unauthorized entry into the vehicle.
Patent CA-2151794-A1 (CA)
Title: Process for preparing hydroxyflavan compounds
Inventor: IYAMA HIRONOBU
IPC: C07D311/96
Filed: 1995-06-14
Abstract: A process for preparing a hydroxyflavan compound which comprises reacting a polyhydric phenol compound represented by formula (2):              (2) wherein at least one of W, X, Y and Z is hydroxy; with a ketone in the presence of (i) an acid catalyst and (ii) water and/or a seed crystal, using an organic solvent which is insoluble in water, procuces the hydroxyflavan compounds in high yield and with high selectivity while maintaining high conversion of the polyhydric phenol.
Patent CA-2154648-A1 (CA)
Inventor: BERTRAM WILLIAM K
IPC: G06F3/0488
Filed: 1995-07-25
Abstract: A touch screen having a high or fine resolution at relatively low cost is provided.  In one embodiment, electrodes are placed directly on the surface of a CRT screen without the need for an electrode positioned on the rear surface.  The touch screen may include a conductive coating and protective coating which are preferably provided in a single vacuum chamber step.  A high gain system including a high-frequency sampling bandpass filter provide discrimination of the desired signal over noise.  A screen calibration technique is used to achieve linearization in order to convert the electric signals obtained from the screen into data indicative of the position of a touch on the screen.
Patent CA-2155810-A1 (CA)
Title: Apparatus and method for starting and controlling a motor
Inventor: BANKS SCOTT A
IPC: H02P1/42
Filed: 1995-08-10
Abstract: An apparatus and method for starting and controlling a motor comprises a timing circuit and a main control circuit. The timing circuit initiates a start-up period upon detecting power and provides an indication of the start-up period.  The main control circuit receives the indication of the start-up period and applies variable magnitudes of power to a main winding of the motor.  During the start-up period, the power applied to the main winding has a fixed, substantially maximum magnitude.  During a period of normal operation following, the power applied to the main winding has a user-adjustable magnitude.  The start-up period duration is as long as necessary for the motor to overcome a starting load thereon. Preferably, the timing circuit has a timer measuring the start-up period and a main relay signaling the start-up period to the main control circuit.  Preferably, the apparatus also has a start-up relay and a start-up control circuit applying power to a start-up winding of the motor in addition to the power applied by the main control circuit to the main winding during the start-up period.
Patent CA-2156709-A1 (CA)
Title: Soft-sided luggage case with interfitting and foldably separate packing compartments
Inventor: FRANKLIN DANA
IPC: A45C5/14
Filed: 1995-01-17
Abstract: An openable and closeable soft-sided luggage case (10) having an external flexible panel (30), internal frame structure (22) surrounding internal cavity (38), and carrying handle (14) or a carrying strap connected to the frame structure, includes first packing compartment (50) connected to the external panel. The first compartment (50) extends into interior cavity (38) and consumes a portion of the cavity when the case is closed. The remaining portion of cavity (38) forms a second packing compartment (74). First compartment (50) includes cover member (58) which is closeable for separating the first and second compartments when the case is closed and openable for allowing access to the first compartment when the case is opened. The first and second compartments are equally accessible and available for packing. The first compartment (50) may function as a garment bag. A packing and unpacking method is also disclosed.
Patent CA-2156868-A1 (CA)
Title: Process for stabilizing polymeric material
Inventor: MAHOOD JAMES A
IPC: B29C47/68
Filed: 1995-08-24
Abstract: A polymerization process is provided involving a carrier solution containing an organic solvent and a phosphite.  The phosphite is highly soluble in the solvent and allows for an incorporation of a minimum of solvent in the carrier solution.  The phosphite is of the formula:       wherein Y1 is an alkyl and Y2 is selected from tert-butyl and sec-butyl.   The process is useful for making  polymers  such  as  styrene-butadiene  block copolymers  which  may  then  be  molded  to  produce commercial articles or may be blended with other thermoplastics  to  enhance  the  impact  strengths thereof.
Patent CA-2159233-A1 (CA)
Inventor: TOMOKO OHTSUKI
IPC: G11B11/10
Filed: 1992-01-10
Abstract: The object of the invention is to eliminate by using a multi-layered film initializing field in magneto-optical recording capable of direct overwriting, and to decrease the restrictions on the compositions of materials for media. The medium consists of two exchange-coupled RETM amorphous layers (a memory layer a reference layer) whose Curie temperatures arealmost the same and only one of which is RE-rich without a compensation temperature, the two layers being laminated directly or indirectly with an intermediate layer that allows exchange-coupling to be interposed. Before recording is carried out, the reference layer is magnetized in one direction. Pulses of energy are emitted from the memory layer side so that the temperature of the reference layer remains below its Curie temperature when one of the bit data is recorded but reaches its Curie temperature when the other of the bit data is recorded.
Patent CA-2160608-A1 (CA)
Title: Oversize shafts for golf clubs
Inventor: SHENOHA JAMES L
IPC: A63B53/12
Filed: 1995-10-16
Abstract: A golf club shaft is provided with increased torque but substantially the same flex as prior shafts by making the outside diameter of the tip end larger and varying the length of the tip end to provide the desired flex.  The outside diameter of the tip end is larger than the tip ends of prior shafts to provide increased torque.  The shaft can be attached to a clubhead by inserting the tip end over a hosel or over a shaft adapter which is attached to the clubhead.
Patent CA-2164904-A1 (CA)
Inventor: PARODI FABRIZIO
IPC: C07D295/088
Filed: 1995-12-11
Abstract: Liquid reactive thermosetting compositions comprising:     A)   At least one polyepoxide or a mixture of one or more polyepoxides with at least one monoepoxide, of an aliphatic, cycloaliphatic or mixed nature;     B)   at least one anhydride of a di- or polycarboxylic acid of an aliphatic,  cycloaliphatic or mixed nature;     C)   at least one catalyst capable of promoting the rapid polymerization of the mixture A+B under microwave irradiation and having general formula (I) + N=C-CH2-CH (Z)-(O)r-YNR1R2R3   X
Patent CA-2165035-A1 (CA)
Inventor: HIOKI SHUZO
IPC: G01B3/10
Filed: 1995-12-12
Abstract: A winding device for winding measuring tape, which allows  a user to fix the top end of a measuring tape drawn  by  a  desired  length  from  a  housing  without applying a load to the tape and to easily release the tape  from the  fixed  condition.    A  winding  reel comprises  a  winding  reel  body  involving  a  winding spring   for winding a measuring tape  and a winding reel cover. The housing is composed of an upper half and a lower half   and accommodates therein the winding reel. A recess formed in the reel has an opening in an inner ring of a bearing fitted in a winding reel cover.          A recess formed in the housing has an opening in an outer surface of a supporting shaft. When the winding reel slowly rotates in a rewinding direction, a roller prevents  the  winding  reel  from  rotating  by  sitting astride the winding reel-side recess  and a winding reel  locking portion    which is an open end of the winding reel-side recess in a direction of drawing-out the measuring tape.
Patent CA-2166153-A1 (CA)
Title: Process for separating molybdenum minerals and copper minerals by flotation
Inventor: BIGMORE ROBERT
IPC: B03D1/012
Filed: 1995-12-27
Abstract: The present invention relates to a process for separating molybdenum minerals and copper minerals by flotation using a depressant for copper sulfide, which comprises using one or more thiocarbamic esters of the formula I       (I) in which R1   is an aliphatic hydrocarbon radical which is unsub-stituted or substituted by hydrophilic groups and has 1 to 6 carbon atoms and R2   is an aliphatic hydrocarbon radical which is substi-tuted by hydrophilic groups and has 1 to 6 carbon atoms or is a phenyl radical which is substituted by hydrophilic groups, as depressants.