baber/WOPTO huggingface dataset:
Patent CA-2219235-A1 (CA)
Title: Five layer injection molding apparatus having four position valve member actuating mechanism
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/16
Filed: 1997-10-23
Abstract: Valve gated multi-cavity injection molding apparatus for five layer molding having actuating mechanisms for reciprocating elongated valve members between four different positions. Each actuating mechanism has a front and a rear aligned cylinders, a first piston connected to the head of one of the valve members in the front cylinder and second and third pistons in the rear cylinder. The third piston has a stem portion which extends forwardly through the second piston into the front cylinder. Hydraulic pressure from four hydraulic lines connected to each actuating mechanism reciprocates each elongated valve member between the different positions. In the first closed position, the front end of the valve member is seated in the gate. In the second position, the front end of the valve member is retracted sufficiently to allow an initial amount of PET to flow from an outer annular melt channel through the gate. Then the valve member is retracted further to a third position to allow simultaneous flow of the PET and a barrier material from an inner annular melt channel. Then the valve member is retracted to a fully open position which allows the simultaneous flow of PET from a central melt channel. When the cavity is almost filled, the valve member returns briefly to the second position for filling before returning to the closed position for ejection.
Patent CA-2220124-A1 (CA)
Title: Adhesive photochromic matrix layers for use in optical articles
Inventor: GUPTA AMITAVA
IPC: G02B3/00
Filed: 1996-05-06
Abstract: Adhesive matrix layers (24) and sublayers and methods for their preparation are described. The adhesive matrix layers (24) and sublayers provide effective reservoirs for photochromic additives and can serve as an effective transition region between dissimilar materials to be used in optical articles which transmit or refract light.
Patent CA-2220275-A1 (CA)
Title: High fidelity vibration source seismic method
Inventor: ALLEN KENNETH PAUL
IPC: G01V1/37
Filed: 1996-05-03
Abstract: A method for recording and pre-processing high fidelity vibratory seismic data includes measuring the motion of the vibrator (36) which is related to the vibrator applied force times a transfer function of minimum phase, causal, linar system relating the actual vibrator output with the measured vibrator motion, determining a ratio (52) by dividing the vibratory seismic data by the measured motion of the vibrator to remove the unknown applied force leaving the earcj reflectivity times a time derivative divided by a minimum phase function, minimum phase band pass filtering the resulting ratio and performing mimimum phase deconvolution to remove the time derivative divided by the transfer function of mimimum phase. The method may also include the steps of receiver ensemble deconvolution (56), statics correction (58), F-K filtering for noise (60), zero phase spiking deconvolution (64) and model dephasing (66). The actual signal that the vibrator (36) is sending into the ground is used in pre-processing.
Patent CA-2220941-A1 (CA)
Title: Water atomizing nozzle for snow making machine
Inventor: NILSSON LENNART
IPC: B05B7/04
Filed: 1996-03-21
Abstract: Water atomizing nozzle adapted to be used in the type of snow making machines, in which water is disintegrated into very small water particles in a ring of atomizing nozzles surrounding an air channel through which air flows at high speed, and whereby the water droplets which are carried by the air freeze to snow or ice crystals and are allowed to fall to the ground some distance from the snow making machine. The atomizing nozzle comprises an outer hollow nozzle cone (1) having an inner cone (3) mounted therein, which inner cone (3) with a front tip thereof is in bottom contact with the end of the outer cone (1), and in which there is formed a channel (4) for feeder water between the inner and outer cones (1, 3), and in which the inner cone (3) is formed with a central air channel (7) through which air of high pressure and high speed is moved straight through the inner nozzle cone (3) and out through an outlet spray bore (2) of the outer nozzle cone (1), and in which swirl chamber (5) for feeder water is provided between the outer and inner cones (1, 3) and from which swirl chamber (5) a minor amount of water can be torn off and be carried out of the nozzle together with the flow of air, thereby forming a central plume (9) of airborne nuclei, whereas the remaining part of the swirling feeder water is pressed out through the nozzle in the form of an outer hollow cone (8) of cooled or freezed water droplets surrounding the plume (9) of nuclei.
Patent CA-2222370-A1 (CA)
Inventor: ZETTERLUND MAGNUS
IPC: B06B1/04
Filed: 1996-05-28
Abstract: Drive assembly for acoustic sources with vibrating surfaces (1) capable of being set in vibrational motion, especially for use in seismic studies, comprising a frame (4) comprising at least one preferably centrally positioned drive part (3, 13). The drive assembly also comprises: two or more fastening devices (2) mounted in relation to the sound emitting surfaces (1) and positioned on opposite sides of the frame (4); two or more flexible transmission elements (5) connecting the fastening devices (2) to each other and extending on both sides of the axis between the two fastening devices; two or more second drive parts (6, 7, 16, 17) connected to the transmission elements (5) and positioned in cooperation with said first drive parts (3, 13) in order to make electromagnetic drives; and that each of the electromagnetic drives are adapted to provide a controlled oscillating relative motion between the related drive parts (3, 6, 7, 16, 17).
Patent CA-2222508-A1 (CA)
Inventor: NGUYEN THANH-HUONG T
IPC: E01F9/00
Filed: 1996-06-21
Abstract: An encapsulated-lens retroreflective sheeting comprising a monolayer of lenses partially embedded in a binder layer, a specularly reflective layer underlying the lenses in optical association therewith, and a cover film bonded to the binder layer, wherein said cover film comprises a polyester film or a polyvinyl chloride film. The cover film has an adhesion bonding interface on the surface in at least partial contact with the binder layer. The sheetings of the invention exhibit improved dimensional stability under heat and shrink resistance while maintaining impact resistance and other desirable properties of pavement markings.
Patent CA-2225345-A1 (CA)
Inventor: MARKS TOBIN J
IPC: B01J31/18
Filed: 1997-04-25
Abstract: A ruthenium-based metathesis catalyst system which contains a ruthenium compound (A), a phosphorus compound (B), and a compound (C) containing a carbon-to-carbon triple bond. The mole ratio of compounds A:B:C is typically in the range of about 1.0:0.01-100:0.01-100. The ruthenium compound (A) is a Ru(II), Ru(III), or Ru(IV) compound containing an anionic ligand (X) and optionally an arene ligand and optionally a phosphorus compound ligand. The phosphorus compound (B) is optional if the ruthenium compound (A) contains a phosphorus-containing ligand.
Patent CA-2225572-A1 (CA)
Title: Shieldable syringe assembly
Inventor: FLOWERS RICHARD A
IPC: A61M5/32
Filed: 1997-12-23
Abstract: A shieldable syringe assembly includes a syringe barrel having opposed proximal and distal ends and an annular groove extending inwardly near said distal end. A locking collar is mounted on said distal end of said syringe barrel and includes a plurality of barbs engaged in the groove. Outer portions of the locking collar aligned with the barbs define a collet that is inwardly deformable. A rigid safety shield is telescoped over the locking collar and the syringe barrel. The safety shield can be slid from a proximal position to a distal position. Interior portions of the safety shield are configured to lockingly engage the collet when the safety shield is in the distal position. The collet engaging portions of the safety shield deform the collet inwardly into tight gripping engagement in the groove on the syringe barrel for preventing separation of the safety shield and the locking collar from the syringe barrel.
Patent CA-2226599-A1 (CA)
Title: Environmentally friendly diesel fuel
Inventor: HILLE MARTIN
IPC: C10L1/02
Filed: 1998-01-13
Abstract: The present invention relates to environmentally friendly diesel fuel, containing natural, liquid triglycerides of natural or animal origin, such as rapeseed or soybean oil, and acetals of the formula (I) or (II) (See formula (I) or (II) in which the substitutents have the meaning defined in the description. This diesel fuel is biodegradable and free of sulfur, nitrogen and aromatics.
Patent CA-2228605-A1 (CA)
Inventor: TOJIMA CHIKARA
IPC: H01L21/66
Filed: 1998-02-04
Abstract: In a measurement method for measuring the epitaxial film thickness  of  a  multilayer  epitaxial  wafer,  a  reflectivity spectrum of a multilayer epitaxial wafer having at least two epitaxial  layers  of  different  electric  characteristics  is measured by using infrared radiation in a far infrared region of at least 500cm-1 or less, and frequency-analysis is performed on the reflection spectrum thus obtained by a maximum entropy method,  and the  film thickness of each epitaxial  layer is calculated on the basis of the analysis spectrum thus obtained.
Patent CA-2230597-A1 (CA)
Title: Floatable lounger with rotating headrest
Inventor: HARTMAN STEVEN DAVID
IPC: B63B35/74
Filed: 1998-02-26
Abstract: A floatable lounger includes a first buoyancy means; second buoyancy means spaced from said first buoyancy means; first and second extending means; and headrest rotatable about said first extending means between a first stored position and a second operable position. The floatable lounger provides for a simpler construction for a floating lounger with excellent buoyancy.
Patent CA-2235654-A1 (CA)
Title: Programmable temperature sensor for security system
Inventor: PARKER JAMES
IPC: G08B19/00
Filed: 1998-04-23
Abstract: The present invention in one aspect, provides for a programmable temperature sensor for a device as part of a security or alarm system. The programmable temperature sensor is capable of having multiple set points programmed, each set point individually programmable as to effect. In a preferred embodiment of the invention, there is provided a keypad controller having a programmable temperature sensor for use in an alarm system. The keypad controller includes an input means for allowing a user to interface with the keypad controller and an alarm system to which the keypad controller is connected, an output means for providing one or more of visual and auditory feedback to a user on the status of the system, an interface means for communicating with an alarm control panel of an alarm system, a processing means for processing inputs from the input means or an alarm control panel and causing the appropriate information to be provided to the output means, and a programmable temperature sensor for monitoring the temperature in the space in which the keypad controller is to be located, the temperature sensor being provided with at lease one alarm set point programmable as to level.
Patent CA-2236743-A1 (CA)
Title: Implantable microphone for cochlear implants and the like
Inventor: MONEY DAVID KERRY
IPC: A61F2/18
Filed: 1995-11-13
Abstract: A system for assisting a person with a hearing disability includes an implantable microphone (40A) which senses sounds by monitoring pressure variations in the cochlear fluid (36). The electrical signal generated by the microphone (40A) is processed and used by a signal generator (44), such as a cochlear implant to generate excitation signals for the patient. In this manner, external microphones, used in prior art systems, are eliminated.
Patent CA-2237519-A1 (CA)
Title: Linkage mechanism for reclining chair
Inventor: MARSHALL RICHARD E
IPC: A47C1/0355
Filed: 1998-05-13
Abstract: A reclining chair (20) is provided which includes a base frame (33), a support linkage assembly (30, 32) pivotally supported from the base frame (33), a seat back (26) operably coupled to the support linkage assembly (30, 32) and the reclining chair (20) including a seat frame (22). A longitudinal link (60) is operably interconnected to the support linkage assembly (30, 32). A recline linkage assembly (100) is operably coupled to the longitudinal link (60) and to the base frame (33) for controlling movement of the longitudinal link (60) from an upright position to at least one reclined position. A rotatable drive shaft (80) is journally supported by the longitudinal link (60). The reclining chair (20) further includes a leg rest assembly (28) supported from the longitudinal link (60) and operably coupled to the drive shaft (80) for movement from a retracted position to an extended position in response to rotation of the drive shaft (80). The support linkage assembly further operates to recline the chair (20) between an upright position and a fully reclined position. The reclining chair (20) optionally incudes a swivel base assembly (420) which provides a rotational degree of freedom between the chair (20) and a floor base (456).
Patent CA-2239371-A1 (CA)
Inventor: ALLEN JEFFREY KENNETH
IPC: H01H9/04
Filed: 1998-06-02
Abstract: Electrical apparatus such as a timer for use in a water filter is formed integrally with a sealed housing. The housing has a resilient, depressible surface from which a projection extends. At least an end surface of the projection is electrically conductive. A pair of spaced-apart electrical contacts are located close to the end surface of the projection. Resilient deflection of the depressible surface causes the projection to come into contact with the electrical contacts, thereby making an electrical connection between them.
Patent CA-2240235-A1 (CA)
Inventor: PERGANDE PAUL EARL
IPC: C23C4/02
Filed: 1998-06-10
Abstract: A method of bonding a thermally sprayed coating to a non-roughened aluminum substrate includes thermal spraying aluminum onto a fluxed and thermally activated aluminum substrate to provide a substrate capable of bonding to ceramic and metal multilayers.
Patent CA-2241094-A1 (CA)
Title: Tri-substituted phenyl derivatives useful as pde iv inhibitors
Inventor: WARRELLOW GRAHAM JOHN
IPC: C07D217/16
Filed: 1996-12-20
Abstract: Compounds of general formula (I) are described wherein =W- is (1) =C(Y)-where Y is a halogen atom, or an alkyl or -XR a group where X is -O-, -S(O)p-[where p is zero or an integer of value 1 or 2], or -N(R b)- [where R b is a hydrogen atom or an optionally substituted alkyl group] and R a is a hydrogen atom or an optionally subtituted alkyl group or, (2) =N-; L is a -XR, [where R is an optionally substituted alkyl, alkenyl, cycloalkyl or cyloalkenyl group], -C(R11)=C(R1)(R2) or [-CH(R11)]n CH(R1)(R2) group where R11 is a hydrogen or a fluorine atom or a methyl group and R1 and R2, which may be the same or different, is each a hydrogen or fluorine atom or an optionally substitued alkyl, alkenyl, alkynyl, alkoxy alkylthio, -CO2R8, [where R8 is a hydrogen atom or an optionaly substituted alkyl, aralkyl, or aryl group], -CONR9R10 [where R9 and R10, which may be the same or different is each as defined for R8], -CSNR9R10, -CN or -NO2 group, or R1 and R2 together with the C atom to which they are attached are linked to form an optionally substituted cycloalkyl or cycloakenyl group and n is zero or the integer 1; R3 is a hydrogen or fluorine atom, an otionally substituted straight or branched alkyl group, or a hydroxyl group; and the remaining substituents are as defined in the description; and the salts, solvates, hydrates, prodrugs and N-oxides thereof. The compounds are phosphodiesterase type IV inhibitors and are useful in the prophylaxis and treatment of diseases such as asthma where an unwanted inflammatory response or muscular spasm is present.
Patent CA-2243220-A1 (CA)
Inventor: PRAIRIE DOUGLAS S
IPC: A01C7/20
Filed: 1998-07-15
Abstract: According to a first embodiment of the invention, a seed delivery tube for regulating the level of seed in a seed meter is disclosed having a tubular member with a screened in lower portion and an internal baffle.  The delivery tube may be rectangular with a cross-sectional area of between 1 and 16 square inches. It may be disposed in a Cyclo unit with its lower end extending near the inner surface of the Cyclo drum.  It may be coupled to a flexible hose and a seed distribution tube that is disposed above a layer of grain, in which the flexible hose is at least 15% smaller than the free end of the seed distribution tube.
Patent CA-2245514-A1 (CA)
Title: Fractionation using dielectrophoresis and field flow fractionation
Inventor: WANG XIAO-BO
IPC: B01D5/00
Filed: 1997-01-31
Abstract: The present disclosure is directed to a novel apparatus and novel methods for the separation, characterization, and manipulation of matter. The invention combines the use of frequency-dependent dielectric and conductive properties of particulate matter and solubilized matter with the properties of the suspending and transporting medium to discriminate and separate such matter. The apparatus includes a chamber having at least one electrode element and at least one inlet and one output port into which matter are introduced and removed from the chamber. Matter carried through the chamber in a fluid stream is then displaced within the fluid by a dielectrophoretic (DEP) force caused by the energized electrode. Following displacement within the fluid, matter travels through the chamber at velocities according to the velocity profile of the chamber. After the matter has transitted through the chamber, it exits at the opposite end of the chamber at a characteristic position.
Patent CA-2245661-A1 (CA)
Inventor: DELUCA HECTOR F
IPC: A61P37/00
Filed: 1996-09-05
Abstract: A method of treating the multiple sclerosis symptoms of a multiple sclerosis patient comprising administering to a multiple sclerosis patient an amount of a vitamin D compound effective to reduce symptoms and observing a reduction in symptoms is disclosed.
Patent CA-2246641-A1 (CA)
Title: System and method for distributing information through cooperative communication network sites
Inventor: SCROGGIE MICHAEL C
IPC: G06Q30/02
Filed: 1998-09-08
Abstract: Information pertaining to products made by manufacturers and sold to consumers through retailers, is distributed to consumers through a communication network that connects consumer communication nodes to a cooperative network site having an accumulation of information about manufacturer product offers and retailer special deals. A consumer can obtain selected items of this information without knowledge of how to reach the cooperative network site, by simply logging in to a manufacturer network site or to a retailer network site. At a manufacturer site, the consumer can obtain a list of local retailers carrying the manufacturer offers and can then select from among the offers and receive complete details of the selected offers. At a retailer site, the consumer can obtain a list of manufacturer offers available at the retailer stores in the consumer's area, and can then select from among the available offers and receive their complete details. An additional feature of the invention makes use of a consumer "personal page," which is an individualized database in which consumer shopping preferences are defined, both by information that the consumer expressly provides and by the consumer's past shopping activity. Use of the personal page allows the consumer to receive product offers that are more targeted to the individual consumer, thus saving the consumer time and effort. Another embodiment of the invention provides for distribution of a product purchase incentive directly to the consumer in response to his or her selection of an advertising banner displayed on an independent commercial network site.
Patent CA-2247839-A1 (CA)
Title: Absorbent article
Inventor: BURNS JOHN GLASGOW JR
IPC: A61F13/00
Filed: 1997-02-21
Abstract: Absorbent articles (2) such as sanitary napkins, panty liners, and adult incontinence pads are disclosed that have a protective sheet (50) for protecting adhesive layers (40, 44) provided on opposite longitudinal side edges (30) of the absorbent article (2), such as on flaps (10) that are folded around leg openings of the garment and back flaps (210) that stay in widespread state in the garment. The protective sheet (50) has a pair of side edges (53) extending in the longitudinal direction and a pair of end edges (54, 56) having a first end edge and a second end edge. The end edges (54, 56) connect the side edges (53). The first end edge (54) extends generally in the transverse direction and includes an inclined portion (57) inclining with respect to the transverse direction.
Patent CA-2249118-A1 (CA)
Inventor: KUNIEDA MAKOTO
IPC: B32B27/32
Filed: 1998-10-01
Abstract: The saponified ethylene-vinyl acetate copolymer (EVOH) resin composition of the present invention is a composition comprising a saponified ethylene-vinyl acetate copolymer (EVOH) (A) having an ethylene content of 20-60 mole percent and a saponification degree of not less than 90 mole percent, magnesium acetate or/and calcium acetate (B) as an essential component and at least one of acetic acid (C), a boron compound (D) and sodium acetate (E) as an optional component, and is characterized in that the contents of the respective components in said composition, relative to 100 parts by weight of EVOH (A), are as follows: magnesium acetate or/and calcium acetate (B) 0.001-0.02 part by weight on the metal basis; acetic acid (C) 0-0.05 part by weight: the boron compound (D) 0-1 part by weight on the boron basis; and sodium acetate (E) 0-0.1 part by weight on the metal basis: and that the weight loss when said composition is maintained at a temperature (T + 70)°C higher by 70 °C than the melting point T °C of said EVOH (A) for 1 hour is not more than 10% by weight.    The laminate of the present invention is characterized in that a layer of a thermoplastic resin is disposed at least one side of a layer consisting of the EVOH resin composition mentioned above.
Patent CA-2249242-A1 (CA)
Title: Surface effect vessel hull
Inventor: HARLEY HOWARD D
IPC: B63B1/10
Filed: 1997-03-06
Abstract: A surface effect hull (10) particularly suitable for use with a catamaran vessel. The twin hulls (12) each comprise a V-shaped portion (formed by faces 38 and 40) and a recess portion (36) that receives pressurized gas therein. The V-shaped bow portion creates dynamic lift and the pressurized air portion creates an air cushion for reduction of drag.