baber/WOPTO huggingface dataset:
Patent CA-2001999-A1 (CA)
Title: Threading apparatus for a single reel cartridge
Inventor: PLATTER SANFORD
IPC: G11B23/50
Filed: 1989-11-01
Abstract: Abstract of the Disclosure A tape transport which is sized to fit within an 8 inch form factor or footprint, to accommodate prevailing mini/micro computer applications, and including operative components which are capable of automatically receiving IBM Corporation's 3480-type tape cartridge and the web of tape which it contains for appropriate introduction to the transport for presentation to a high performance magnetic recording head.  This permits a use of the 3480 tape cartridge in a transport apparatus which is capable of fitting within an 8 inch form factor or footprint, and which is therefore acceptable for use in connection with many mini/micro computer applications, yet which is capable of providing high performance (parallel track, high transfer rate) storage and retrieval due to its compatability (and interchangeability) with the format used by the IBM Corporation in connection with its 3480 tape cartridge.
Patent CA-2003918-A1 (CA)
Title: Preparation of halofluorobenzenes
Inventor: PEWS R GARTH
IPC: C07C25/13
Filed: 1989-11-27
Abstract: ABSTRACT       Chlorofluorobenzenes and difluorobenzenes are prepared by reacting a dichlorobenzene with an effective amount of KF or CsF, in a polar aprotic solvent, at an elevated temperature, and under substantially anhydrous conditions.  The product can be removed as it is formed or the reaction may be run at the autogenous pressures generated by the reaction mixture in a sealed reactor. 37,135-F
Patent CA-2006087-A1 (CA)
Title: Polypeptides isolated from the venom of the spider hololena curta
Inventor: STAPLETON ANDREW G
IPC: C07K1/20
Filed: 1989-12-20
Abstract: This invention relates to novel, relatively low molecular weight, 36-38 amino acid polypeptides isolated and purified from the toxin of the spider Hololena curta, or synthetically produced, which are useful as insecticides and in the treatment of glutamate antagonist and calcium antagonist related pharmacological conditions.
Patent CA-2006965-A1 (CA)
Title: Fishing device
Inventor: SCHLAEGEL GENE A
IPC: A01K83/06
Filed: 1990-01-02
Abstract: Abstract of the Disclosure A bait harness for holding a bait in the form of a fish or fillet for casting, trolling or jigging is designed to be virtually weedless in use for avoiding the loss or snagging of the bait when pulled through weeds or other obstructions.  The harness includes a clamp of highly resilient spring material bent so that integral opposed sides converge to an abutting normally closed position for gripping the jaws of a bait fish or the leading end of a fillet and include a movable arms means for selectively opening said sides.  In one embodiment, the clamp is secured to a buoyant artificial fishing plug provided with a trailing single hook, riding up, and a removable fasten-ing means for securing the tail portion of the fish bait to the shank of the hook.  In a second embodiment, the clamp carries a pair of multi-barbed hooks connected respectively to the clamp sides for disposition at opposite sides of the bait and, preferably, one barb on each hook is bent perpendicularly to the shank of the hook so that it can be selectively imbedded into respective opposite sides of the bait.  In a third embodiment, the clamp is secured to a spoon provided with a trailing single hook, riding  up   for in-sertion through the tail of the bait fish and the forward end of the spoon is extended forwardly,  upwardly  and rearwardly to pre-sent a loading curled end terminating in a small lip that is con-nected by a rubber band to the barbed end of the single hook and thus enhances its weedless capability.  In a fourth embodiment, the clamp is secured to a lead head jig provided with a trailing single hook, riding  up   for insertion through the bait, and a fishing hook, preferably with mutliple barbed points having one of said points inserted through the tail of the bait, is secured by a flexible line to the clamp.
Patent CA-2008430-A1 (CA)
Title: Tire pressure indicator
Inventor: HUANG TIEN-TSAI
IPC: G01L17/00
Filed: 1990-01-24
Abstract: ABSTRACT OF THE DISCLOSURE     A   tire  pressure  indicator  includes   a   hollow cylindrical  casing mounted to an inflating valve of  a tire,  a  transparent cap member, a piston  member  and biasing means for the piston member. The piston  member is  movably  confined  inside  the  hollow  cylindrical casing  and  moves in response to the pressure  in  the tire.  The piston member has a vertical pole  which  is divided  into several parts, each part having  a  color representing  a tire pressure state. The tire  pressure is  indicated by the color(s) that can be seen  through the  cap member. A hole is provided along the  wall  of the  hollow  cylindrical casing and  serves  as  outlet means  for excess air in the tire. The hole is  blocked by  the piston member when air pressure in the tire  is deemed acceptable.
Patent CA-2009323-A1 (CA)
Title: Cation exchange membranes
Inventor: SCOTT GRAHAM W
IPC: C08J5/22
Filed: 1990-02-05
Abstract: ABSTRACT CATION EXCHANGE MEMBRANES        Cation exchange membranes which are derived from aryl ether polymers wherein at least a portion of the aromatic rings are bound into the polymer backbone by two ether linkages and which bear a sulphonic acid derivative are more chemically stable than conventional cation exchange membranes and may be used in electrodialysis systems.
Patent CA-2009350-A1 (CA)
Title: Lift for vehicles
Inventor: CLARE LLOYD E
IPC: B66F7/02
Filed: 1990-02-05
Abstract: Abstract of the Disclosure LIFT FOR VEHICLES     The lift is movable from site to site, and is suitable for lifting wide vehicles, such as trucks.  The lift comprises a rectangular base frame (12) to which are hinged two side wings (14).  The side wings fold up for transit.  Corner pillars (16) for raising the vehicle are located on the side wings.  Hydraulic actuators (56) are located inside the crossbeams (20) which bridge between the corner pillars.          The lift includes jacklegs (25) which are used to raise the side wings, and to jack the lift for assembling road wheels.
Patent CA-2009727-A1 (CA)
Title: Polymer composition
Inventor: IWANAMI KUNIO
IPC: C08K5/24
Filed: 1990-02-09
Abstract: ABSTRACT OF THE DISCLOSURE         A polymer composition comprising resin components comprising (a) 5-95 weight % of a polyamide resin, and (b) 5-95 weight % of polyolefin + unsaturated carboxylic acid-modified polyolefin, and (c) additives comprising the following compounds in amounts per 100 parts by weight of the total composition: (1) 0.1-2 parts by weight of a substituted hydrazine; (2) 0.05-2 parts by weight of a hindered phenol compound; (3) 0.05-0.5 parts by weight of a phosphite or phosphonite; and (4) 0.15-1 parts by weight of a thiodipropionate.
Patent CA-2012814-A1 (CA)
Inventor: ALLEN GARY R
IPC: H05B41/24
Filed: 1990-03-22
Abstract: A circuit arrangement and a method of operating a highly desirable discharge lamp for automotive applications are disclosed. The discharge lamp contains a high xenon pressure along with a fill of mercury and a halide typically used for metal halide lamps. The high xenon pressure allows the xenon-metal halide lamp to obtain instantaneous light at a high intensity level which is particularly suited for automotive applications. The circuit related to the present invention provides for acoustic operation of the lamp which substantially eliminates known disadvantages of the high pressure xenon lamp of (1) severe arc bowing of such lamps having electrode spacing greater than two (2) millimeters; (2) increased hot-spot temperatures of such lamps; (3) decreased cold-spot temperatures of said lamps and (4) reduced lamp efficiency and life respectively due to decreased cold spots and increased hot-spot temperatures. The circuit in a preferred embodiment incorporates frequency modulation to broaden the desired operational frequency band of the circuit along with straightening the arc between electrodes of the high-pressure xenon-metal halide lamp.
Patent CA-2016853-A1 (CA)
Inventor: SWIDLER RONALD
IPC: G03G9/13
Filed: 1990-05-15
Abstract: Toner and liquid developer compositions for use in color electrophotographic processes are described.  The developer compositions display high particle-mediated conductivity and charge and thus give rise to a final print of exceptionally high quality. Methods of manufacturing the toner and developer compositions are also disclosed, as are novel charge control agents and processes for using the various compounds and compositions in consecutive multicolor image development.
Patent CA-2018843-A1 (CA)
Inventor: LESQUIR DOMINIQUE
IPC: G09F3/14
Filed: 1990-06-12
Abstract: ABSTRACT OF THE DISCLOSURE     A tamper-proof tag, made of a unitary body formed of injection molded plastic material, comprises a fastener flexibly connected to a strap, the latter being foldable into a ring with one end engageable into a catch defined at the other end of the strap.  The fastener is so configured that, once received in the catch, it may be forcingly engaged into an opening defined in the said one end of the strap.  Once engaged, the fastener cannot be removed without damaging the tag.
Patent CA-2019012-A1 (CA)
Inventor: LAPOIRIERE CLAUDE
IPC: A61K47/42
Filed: 1990-06-14
Abstract: Process for the preparation of crosslinked poly- beta -alanine in the form of microspheres with a narrow size distribution. 
<??>This process, which is carried out in a single stage, consists in polymerising acrylamide with a polyfunctional compound capable of being copolymerised with acrylamide, as a crosslinking agent, in an organic solvent or a mixture of such salts in the presence of an anionic polymerisation initiator and of a suspending agent. 
<??>Use of the microspheres obtained for impregnating a pharmaceutical or cosmetic active substance.
Patent CA-2019657-A1 (CA)
Inventor: ENGELS HANS-WILHELM
IPC: C08L21/00
Filed: 1990-06-22
Abstract: Rubber mixtures containing so-called "pre-crosslinked"' polychloroprene give vulcanizates having an improved combination of low rolling resistance and low abrasion.
Patent CA-2019746-A1 (CA)
Title: Endodontic filing tool
Inventor: MALATA PETER JR
IPC: A61C3/02
Filed: 1990-06-25
Abstract: ABSTRACT OF THE DISCLOSURE     An endodontic filing tool which can be chucked into a dental tool holder with slight play but secured against rotating movement as well as against axial movement by chucking balls. A circumferential groove is provided at the rearward end of the tool shaft, wherein the circumferential groove is interrupted at at least one location, so that a stop for the chucking ball is formed.
Patent CA-2022766-A1 (CA)
Title: Bipolar femoral implant
Inventor: FORTE MARK R
IPC: A61F2/30
Filed: 1990-08-07
Abstract: ABSTRACT OF THE DISCLOSURE            An implantable prosthetic hip joint includes a spherical acetabular shell articulating within the acetabulum socket of a pelvis and including a spherical shell portion defining an inner spherical surface, and a skirt portion extending downwardly therefrom; a femoral head including a femoral head and a stem secured to the femur of the person: a hemispherical bearing insert mounted in the spherical shell portion for receiving the femoral head for ball-and-socket movement therein; a retractable split annular rim positioned below the bearing insert and including a central opening which permits passage of the femoral head therethrough, and an inner ring surface, the rim including concentric threads along the outer surface thereof which releasably mate with concentric threads along the inner surface of the skirt portion to secure the rim in a first position spaced from the bearing insert and a second position at least substantially in contact with the bearing insert, with an annular recess being defined between the bearing insert and the split rim when the split rim is secured in the first position; and a split spring ring which retains the femoral head in the bearing insert, and includes an annular inner arcuate surface biased into engagement with the femoral head and being movable in the annular recess when the split rim is secured in the first position and being held by the inner ring surface when the split rim is secured in the second position.
Patent CA-2023330-A1 (CA)
Title: Method for making elastomeric sealing device
Inventor: MITCHELL EDWARD P
IPC: B26D3/08
Filed: 1990-08-15
Abstract: A method of making a plurality of concentric ring cuts in a pliable device such as an elastomeric seal, by rotating the device at a speed to generate a desired centrifugal force and cutting into the rotating device with a knife while flushing the knife and elastomeric device to produce a device having one or more sets of concentric rings with each set comprised of one or more rings.
Patent CA-2024218-A1 (CA)
Title: Fabric of thermoplastic fibre and continuous reinforcing fibre
Inventor: MARISSEN ROELOF
IPC: D02G3/04
Filed: 1990-08-29
Abstract: ABSTRACT          The invention relates to a fabric of thermoplastic fibres and continuous reinforcing fibres suited for being processed as a thermoplastic composite prepreg, the thermoplastic fibres of which fabric have a melting point lower than that of the reinforcing fibres and are heated up to and for some time kept at a temperature 50 to 15 degrees Centigrade below the melting point of the thermoplastic material before being processed to form the fabric.        Fabrics of thermoplastic fibres and reinforcing fibres according to the invention can be used in all areas where high-grade fibre-reinforced plastics are advantageous and notably where it is an advantage that flat sheets of fabric can be subjected to a cold elastic moulding process to conform to the mould for the thermoforming process.          Examples are the automotive industry, sports goods, domestic articles (boxes for microwaves), housings for electronic apparatuses, satellite dishes, the aircraft industry, shipbuilding, house construction, caravans,
Patent CA-2026665-A1 (CA)
Title: Method and arrangement for the disposal of gas space contents of large-volume containers in the case of components which load the environment
Inventor: WEIL PETER
IPC: F17D1/04
Filed: 1990-02-06
Abstract: Abstract:      A solution is to be provided by means of a method and an arrangement for disposal of the gas space contents of large-volume containers, such as tanks or the like, when emptying one tank and filling another tank with materials whose gas phase loads the environment, is harmful to the environment or is to be reclaimed as valuable material, wherein the gas space of the tank being emptied is filled with a substitute material and the gas contents of the tank being filled are directed via a cooling trap, by means of which solution the gas space contents can be disposed of in a simple manner, wherein the solution is to be effected in such a way that the arrangements and devices which are utilized have the smallest possible volume and are simple to manage, in that they can also be used in conventional tank vehicles regardless of whether or not the latter are road vehicles or track-bound vehicles.     This is achieved in that the cooling trap is operated with a liquid inert gas, wherein the inert gas operating the cooling trap is used as substitute material for filling the tank being emptied.     A single drawing is disclosed.
Patent CA-2028194-A1 (CA)
Title: Polyether polyols having reduced unsaturation and polyurethane foams prepared therefrom
Inventor: GAGNON STEVEN D
IPC: C08G18/50
Filed: 1990-10-22
Abstract: Polyether polyols prepared by oxyalkylating a 1,2-diaminocycloalkane have reduced levels of unsaturation and may be used to prepare melamine containing flame retardant polyurethane foams capable of passing California 117 and 133, and other flame tests.
Patent CA-2029529-A1 (CA)
Inventor: BRANDELL JOHN T
IPC: E21B34/14
Filed: 1990-11-08
Abstract: A casing valve includes an outer housing with a sliding sleeve.  First and second seals define a sealed annulus within the housing.  A latch is disposed in the sealed annulus for latching the sliding sleeve in its first and second positions.          The housing has a plurality of housing ports defined therein, and the sliding sleeve has a plurality of sleeve ports defined therein, all of which are initially blocked by disintegratable plugs.  A third seal disposed between the sleeve and housing isolates the housing ports from the sleeve ports when the sleeve is in its first position relative to the housing.  When the sleeve is moved to its second position relative to the housing it is aligned so that the sleeve ports are in registry with the housing ports.  This alignment is achieved by a lug and groove which are also disposed in the sealed annulus of the casing valve.
Patent CA-2033199-A1 (CA)
Title: Central suction-cleaning installation with water flushing and double rinsing
IPC: A47L9/20
Filed: 1990-06-12
Abstract: The invention relates to a central suction-cleaning installation with water flushing and double rinsing. This installation is characterized in that it contains water flush generating means consisting of a water intake at the bottom end (5) of the chamber (7) via a duct (25) linked to a source of pressurized water (20) and in which there are interposed an electrovalve (26) and a needle valve tap (27) controlled by a float (28) which is arranged inside the chamber, above a reserve of water (13), in that the chamber is further provided with a double rinsing system containing, on the one hand, a diffuser ring (31) directed at said reserve of water and, on the other, a spray diffuser (32) of a dust filter (35) placed between the suction plant (34) and said diffuser ring (31), whereby the ring and spray diffusers are linked to said source of pressurized water via a duct (219) which is provided with an electrovalve (30). Applications in central suction-cleaning.
Patent CA-2033899-A1 (CA)
Inventor: DERUDDER JAMES L
IPC: C08L69/00
Filed: 1991-01-10
Abstract: 337-2167 (8CT-4861) ABSTRACT OF THE DISCLOSURE Polycarbonate and polyester blends are prepared with a combination of modifiers comprising a multi-stage polyorganosiloxane-based graft polymer composition and a diene rubber-based graft polymer composition imparting a wide range of excellent physical properties on the PC and PE blends.
Patent CA-2034556-A1 (CA)
Title: Needle-mounted hypodermic needle guard
Inventor: SIRCOM RICHARD
IPC: A61M5/31
Filed: 1991-01-18
Abstract: A needle guard is provided which is needle-mounted and free-floating and which automatically engages with the needle on being slid to the tip. Improvements include a lateralmounting capacity and use of a sheet of metal from which guard components may be stamped.
Patent CA-2037388-A1 (CA)
Title: Device for use in braille printing or paperless braille communication
Inventor: GALARNEAU ROLAND
IPC: B41J3/32
Filed: 1991-03-01
Abstract: A B S T R A C T      A device for forming Braille characters for tactile sensation or impression onto an embossable substrate includes a substantially block-like main body.  At least one array of six Braille printing pins  is  contained  in  the  block  in  a  2  X  3  Braille  cell configuration.  Each said pin is contained in a first cylindrical bore and is movable between a retracted position whereby it does not protrude from the block, and an extended position whereby the tip of the pin protrudes from the block.  Means are associated with each said pin for maintaining each pin in an extended position.
Patent CA-2039844-A1 (CA)
Title: Temperature control system for semiconductor wafer or substrate
Inventor: NAKAGAWA TOSHIYUKI
IPC: H01L21/683
Filed: 1991-04-05
Abstract: ABSTRACT OF THE DISCLOSURE       A temperature control system may be used in conjunction with the sputtering, CDV. etching, and like processes for a substrate on which the semiconductor devices are implemented. This system responds quickly to any change in the temperature of the substrate being processed. by heating or cooling the substrate to the appropriate temperature and maintaining it at its constant temperature.
Patent CA-2040087-A1 (CA)
Inventor: GUIRGUIS RAOUF A
IPC: G01N33/544
Filed: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE         An  apparatus  for  testing  biological  molecular indicators  in blood  comprising a  tubular container, and a sample  compartmentalized  removable  container  holding  a membrane with immobilized ligands .   Blood is collected in the tubular container under pressure to flow through the sample  compartmentalized  container which  screens  off  the blood cells so that specific ligands carried by the blood can be captured by the immobilized ligands on the membrane.
Patent CA-2042404-A1 (CA)
Title: Alkylation of aromatics
Inventor: KUSHNERICK JOHN D
IPC: C07C15/20
Filed: 1990-04-09
Abstract: A process for alkylating an aromatic compound comprises contacting the aromatic compound with at least one alkylating agent in the presence of a catalyst comprising a synthetic porous crystalline zeolite having the following diffraction lines:        TABLE I        Interplanar d-Spacing (A)      Relative Intensity, I/Io x 100 12.36 ~ 0.4       ~~M-VS 11.03 ~ 0.2       ~~M-S 8.83 ~ 0.14      ~~M-VS 6.18 ~ 0.12      ~~M-VS 6.00 ~ 0.10      ~~W-M 4.06 ~ 0.07      W-S 3.91 ~ 0.07      M-VS 3.42 ~ 0.06      VS
Patent CA-2042673-A1 (CA)
Title: Acetyl-tri- and tetramethyl-octahydronaphthalenes and fragrance compositions containing the same
Inventor: ETZWEILER FRANZ
IPC: A61Q13/00
Filed: 1991-05-15
Abstract: The invention relates to odorants.      More particularly, the invention relates to compounds of the general formula (see formula I) wherein R is hydrogen or methyl.      Formula I should in particular embrace the two enantiomers (see formula Ia, Ib) as the racemate.
Patent CA-2047526-A1 (CA)
Title: Resin compositions excellent in impact resistance and heat stability
Inventor: MORI HIROSHI
IPC: C08L51/04
Filed: 1991-07-22
Abstract: ABSTRACT OF THE DISCLOSURE         A thermoplastic resin composition comprising a blend obtained by blending the following components (A), (B) and (C):          (A)       10 to 90 parts by weight of a polyamide, (B)       90 to 10 parts by weight of a compound rubber graft copolymer obtained by graft-polymerizing 5 to 13 parts by weight of at least one vinyl monomer (B-2) select-ed from the group consisting of vinyl cyanide monomers, aromatic vinyl monomers and (meth)acrylate monomers onto 87 to 95 parts by weight of a compound rubber (B-1), the total amount of (B-1) and (B-2) being 100 wt.% based on the compound rubber graft copolymer, the compound rubber (B-1) consisting of 10 to 90 wt.% of a polyorganosiloxane rubber component (b-1) and 90 to 10 wt.% of a polyalkyl (meth)acrylate rubber component (b-2), the total amount of (b-1) and (b-2) being 100 wt.% based on the compound rubber (B-1), and the compound rubber (B-1) having such a structure that the both rubber components are not separable from each other, and (C)       0 to 80 parts by weight of a polymer obtained by polymerizing at least one member selected from the group consisting of vinyl cyanide monomers, aromatic vinyl monomers and (meth)acrylate monomers, so that the total amount of the components (A), (B) and (C) is 100 parts by weight, and (D)    0 to 100 parts by weight of a reinforcing filler.     According to the present invention, by blending the afore-mentioned particular compound rubber graft co-polymer, it is possible to give impact resistance and heat stability to a polyamide resin excellent in proper-ties such as chemical resistance, moldability and abrasion resistance, and also to give excellent appearance to molded products of the polyamide resin. Consequently, the resin composition of the present invention is very useful as a material for automobile parts, electric and electronic parts, etc.