baber/WOPTO huggingface dataset:
Patent CA-2070579-A1 (CA)
Title: Signal transmitter-receiver system
Inventor: WAKABAYASHI TAKAO
IPC: H04L5/14
Filed: 1992-06-05
Abstract: ABSTRACT OF THE DISCLOSURE            A signal transmitter-receiver system which comprises first and second two transmitter-receiver units interconnected by a signal transmission line, the first transmitter-receiver unit including first transmission means for delivering one of different kinds of a.c. signals different in phase difference with respect to a reference a.c. signal to the signal trans-mission line at every predetermined communication time, the second transmitter-receiver unit including second receiving means for identifying the phase difference of the a.c. signal on the signal transmission line with respect to the reference a.c. signal at every communi-cation time mentioned, the second transmitter-receiver unit including second transmission means for changing the combination of positive and negative amplitudes of the a.c. signal on the signal transmission line to one of a plurality of kinds at every communication time mentioned, the first transmitter-receiver unit includ-ing first receiving means for identifying the combina-tion of positive and negative amplitudes of the a.c. signal on the signal transmission line at every communi-cation time mentioned.
Patent CA-2071825-A1 (CA)
Title: Device for rendering inert casting vessels for transporting molten metals
Inventor: DE HAAS HANS
IPC: B22D1/00
Filed: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE     A device for rendering inert casting vessels for transporting molten metals, such as moveable ladles or transfer ladles, rinses with an inert gas the cavity of each casting vessel located under the outlet opening of a transfer station, before and during inflow of the molten metal, so that all contact is avoided between the surface of the molten metal in the casting vessel and the oxygen in the atmosphere.          In the area of each outlet opening (7, 8) of transfer station (2) is arranged at least an inert gas blast pipe (23, 24), so that it never intercepts the stream (9) of inflowing molten metal, that it is located outside the clearance profile of the casting vessel (10, 11) at least during its approach and departure, that ends before the opening (12) of the latter and that generates at its end facing the casting vessel (10, 11) and inert gas stream that enters the cavity (31) of the casting vessel (10, 11) next to the stream (9) of molten metal at an angle d in relation to the vertical of more than 0° but less than 90°.
Patent CA-2072211-A1 (CA)
Inventor: FRASER MICHAEL J
IPC: F01D5/00
Filed: 1992-06-24
Abstract: Heating apparatus specifically adapted for the heat treatment of turbine blades comprises two parts (10,11) which may be pivotally connected by a hinge (17), the support parts (10,11) carrying heating elements (14,15) and a slot (20) the provision of the slot (20) enabling the heating apparatus to be slid over the trailing edge of the turbine blade into position on the blade and subsequently closed by closure member (24) this enables the rapid application of heating apparatus for heat treatment processes which has hitherto been a complicated and time consuming operation. The heating apparatus may incorporate thermocouples (27) and heat sinks. <IMAGE>
Patent CA-2074677-A1 (CA)
Inventor: SCHNEIDER HENRY J III
IPC: G01R31/00
Filed: 1992-07-27
Abstract: A tester for testing sealed lamps and lamp circuits of vehicles includes an elongate housing.  The housing has pointed projections extending from one end wall to be received in a base of a lamp and has blunt projections with recesses in the other end wall to receive the prongs of a plug or pigtail which is normally inserted into the base of a lamp.  Each of the ends of a bottom wall of the housing have two ports through which light sources, preferably LEDs, are visible and light when the lamp or circuit is functional.  A battery is also carried in the housing for the lamp circuit.  In a preferred form, the end walls are slidably held by the housing so as to be removable for replacement purposes and to facilitate manufacture.
Patent CA-2074737-A1 (CA)
Inventor: CLARKSON CURTIS W
IPC: F16K3/02
Filed: 1992-07-28
Abstract: A packingless gate valve is disclosed which includes a housing having opposed similar housing halves with resilient sleeve units which compressibly engage each other in the valve open condition and engage opposite sides of the gate in the valve closed condition.  Each sleeve unit has a plurality of compression holes extending axially and arranged at intervals relative to the circumference of the sleeve.  An encircling stiffening ring of harder material is encapsulated in each sleeve so as to be positioned at the  inner end of  the compression holes.  The compression holes may be left empty or, alternatively, may be sealed with plastic plugs, filled with closed cell foam or mechanical springs.  The compression holes  provide  space  for the  displaced volume  of  sleeve elastomeric material to flow into during opening and closing of the gate.   The gate valve construction of the present invention results in no leakage to the outside when the valve is fully open and no leakage to the outside or past the gate internally when the valve is fully closed.  A lockout device of the invention has alternative positions for preventing the valve from opening or closing.  In an alternative embodiment of the gate valve, the inner axial sealing end of each sleeve is located radially inwardly as compared to the location of the stiffening ring.  As a further alternative, a groove is located along the radially inner surface of the sleeve in an arc of approximately 120 degrees, with the arc extending from the four o'clock to the eight o'clock position.
Patent CA-2078441-A1 (CA)
Title: Cleansing products
Inventor: DATE ROBERT F
IPC: A61K8/43
Filed: 1991-03-11
Abstract: A foam-producing cleansing product comprising a compressible, non-aerosol dispenser equipped with a reservoir, dispensing head and liquid/air mixing means, wherein the reservoir contains an aqueous cleansing composition comprising: (a) from about 0.1 to 16 %  of animidazolinium or ammonium amphoteric surfactant, (b) from 0.1 to 16 % of an aminoalkanoate or iminodialkanoate amphoteric surfactant, (c) optionally up to 10 % anionic surfactant, and (d) water, wherein the cleansing composition has a total surfactant concentration of from 0.2 % to 20 % of which at least 20 % comprises the mixture of (a) and (b). The composition has improved foam stability and creaminess together with excellent cleansing performance and mildness. It is suitable for use as make-up and facial cleansers, foam and shower products, shampoos, etc.
Patent CA-2081756-A1 (CA)
Title: Shaft coupling
Inventor: KURIBAYASHI SADATOMO
IPC: F16D3/06
Filed: 1992-10-29
Abstract: ABSTRACT OF THE DISCLOSURE      An inner slide surface 11 at the side of the driving shaft is formed on a plastic guide member 10 at the side of the driving shaft, which is removably mounted to a thorough hole 7 of a flange 6 at the end portion 2 of the driving shaft, and an inner slide surface 13 at the side of the driven shaft is formed on a plastic guide member 12 at the side of the driven shaft, which is removably mounted to a through hole g of a flange 8 at the end portion 4 of the driven shaft. A metallic rod member 14 for transmitting the torque, which removably penetrates a corresponding one of the guide member at the side of the driving shaft and a corresponding one of the guide member at the side of the driven shaft, has a first outer slide surface 16 and a second outer slide 18 surface which may each slide relative to the foregoing inner slide surfaces at the side of the driving shaft and the driven shaft respectively.     A shaft coupling according to the present invention can effectively cope with the eccentricity, angular deviation and the axial movement between the driving shaft side and the driven shaft side and efficiently and smoothly transmit the torque while being easy in maintenance, repair and assembly.
Patent CA-2082956-A1 (CA)
Title: Insect bait station
Inventor: CHANG FRANK N
IPC: A01M1/02
Filed: 1991-05-10
Abstract: An insect bait station (10) comprising a hydrated macrogel layer (13) containing at least one species of entomopathogen and a hydrated water retentive compound layer (18) which acts as a water-reservoir For the entomopathogen.
Patent CA-2083965-A1 (CA)
Title: Surgical stapler
Inventor: PEROUSE ERIC
IPC: A61B17/068
Filed: 1992-03-30
Abstract: A surgical staple inserter for joining two ducts consisting of a blood vessel (26) and a blood prosthesis (24). The staple inserter ejects staples (94) in a radial direction relative to the axis of the ducts (24, 26). In one embodiment, it includes a staple holder (32) surrounded by the prosthesis and containing a series of staples (94) arranged in at least one ring. All the staples (94) are ejected simultaneously. Said staple inserter also includes an anvil (40) outside the organic ducts, and a device for spacing apart the anvil and the staple holder in relation to their relative working position. Projections hold the prosthesis in place during the insertion of the staple holder into the ducts.
Patent CA-2084048-A1 (CA)
Title: Support frame for moveable awning
Inventor: DANIELI REMO C
IPC: E04F10/06
Filed: 1992-11-27
Abstract: Abstract of The Disclosure A support frame for a moveable awning having horizontally spaced, cantilevered, extruded tubular frames having curved sections connected to the outer ends thereof and to the upper ends of horizontally spaced vertically extending, extruded tubular uprights.   The extruded cantilevered frames, curved sections and extruded uprights all have an elliptical con figuration in cross-section which are contiguous.  The leading edge of the awning is connected to a trolley assembly having rollers engaging the exterior surfaces of the cantilevered frames, curved sections and uprights.  By this construction and arrangement a continuous, smooth track is provided between the roof portion and wall portion to facilitate the extension of the awning and the retraction thereof to the stored position.  Each curved section is of one-piece construction made of plastic and bendable when heated to obtain the proper curvature between the sloped cantilevered frames and the uprights. By the construction and arrangement of the support frame a track is provided which is not subject to the accumulation of dirt, debris, and ice, and the one-piece construction of the curved section results in a minimum number of parts required.
Patent CA-2085086-A1 (CA)
Title: Vacuum extrusion press assembly for metals
Inventor: CRISTIANI GIANCARLO
IPC: B21C23/21
Filed: 1992-12-10
Abstract: The press comprises a sealing and suction device (32; 232) mounted around the plunger (18; 218) with the possibility of sliding axially along the same; the said device creates an airtight seal against the wall of a billet container (20) when the plunger is working within -the chamber of said container (20).        One or more connection tubes (42) connect the enclosed space with an apparatus generating a vacuum or with an environment under vacuum.        The vacuum is created in the container before beginning extrusion, as soon as the plunger has entered 'the container.
Patent CA-2085178-A1 (CA)
Inventor: KIM KYEOGHYEON
IPC: B60C9/00
Filed: 1992-12-11
Abstract: A polyester multi-filamentary yarn having a novel internal microstructure, a polyester tire cord produced from the yarn and a process for production thereof are provided.    The polyester yarn of the present invention has a novel three-phase microstructure consisting of crystalline, amorphous and mesomorphous portions which will be changed to,  in the formation of a tire cord, a definite structure of crystalline and amorphous portions.    The polyester resin comprising at least 90 mol% polyethylene therephthalate  is melt-spun and  solidified by quenching  to produce a undrawn yarn with a birefringence of 0.03 to 0.08, which is then drawn at a total draw ratio of 1.4: 1 to 2.2: 1 and thermally treated and relaxed.  The resulting filamentary yarn is dipped in a rubber solution to produce a tire cord which exhibits excellent dimensional stability and fatigue resistance when it has been incorporated in a rubber matrix of a tire.
Patent CA-2086347-A1 (CA)
Title: Device for keeping a razor
Inventor: GRANGE KENNETH
IPC: B65D43/14
Filed: 1992-12-29
Abstract: Abstract The invention concerns a device for keeping a razor.  In order to provide such a device which on the one hand allows safe storage and keeping of the razor and which on the other hand can be used as a stand from which the razor can easily  be  removed  for  proper  use  thereof,  with  the invention there is proposed a housing with two relatively pivotable housing portions (8,  2),  a longitudinal guide (11) in one housing portion (8) and at least one guide element (12) which is mounted on the other housing portion (2)  and slidable along the longitudinal guide  (11)  and which also forms the pivot point in case of pivoting of the two housing portions (8,  2) out of a first position in which the device is closed, into a second position in which the razor (1) is accessible for removal.
Patent CA-2088852-A1 (CA)
Inventor: GUSTAFSON KEITH
IPC: F02M21/02
Filed: 1993-02-05
Abstract: The present invention uses an on-board source of compressed natural gas (CNG) to pressurize the LNG in the vehicle's LNG storage tanks such that high pressure natural gas can be delivered to the use device.  More than one LNG storage tank can be used without increasing the amount of CNG required if the storage tanks are connected together in series so that the upstream storage tank pressurizes the down stream storage tank.
Patent CA-2089837-A1 (CA)
Inventor: THORNE LINDA P
IPC: C12N9/24
Filed: 1993-02-18
Abstract: ABSTRACT OF THE DISCLOSURE              A compound having endolytic enzymatic activity against polysaccharides having the subunit backbone structure:     ?3)-.beta.-D-Glc-(1?4)-.beta.-D-GlcA-(1?4)-.beta.-D-Glc-(1?4)-.alpha.-L-X-(1?    (I) wherein Glc is glucose, GlcA is glucuronic acid, Rha is rhamnose, Man is mannose, X may be Rha or Man, and wherein the reducing end of the polymer is toward the X residue of the backbone is disclosed. A method for producing the compound by culturing a selected organism, the method for selecting the organism and method for using the compound are also disclosed.
Patent CA-2091689-A1 (CA)
Title: Catalytic production of lactide directly from lactic acid
Inventor: BENECKE HERMAN P
IPC: B01J21/08
Filed: 1991-09-18
Abstract: The present invention is directed to a method for making lactide from aqueous lactic acid. The inventive method comprises converting feed aqueous lactic acid to its vapor phase. The feed vapors then are passed through a reactor maintained at elevated temperature and in which optionally is disposed an alumina catalyst.  Withdrawn from the reactor is product lactide, water, and unreacted lactic acid which are subject to separation for recovery of the lactide product. The separated unreacted lactic acid is eligible for readmission to the process for making additional lactide. This cyclic process embodiment of the present invention comprises the steps of passing make-up aqueous lactic acid feed into a vaporization zone along with unreacted aqueous lactic acid filtrate from another step of the process and therein forming aqueous lactic acid feed vapors. The thus-generated vapors that are passed through a vapor phase reaction zone held at elevated temperature for forming lactide therein. Lactide as solid is separated from unreacted aqueous lactic acid filtrate; and the filtrate is passed into the vaporization zone in the initial step of the process.
Patent CA-2092954-A1 (CA)
Title: Composite injection-blow molded wheel and method of fabrication
Inventor: MARKLING FLOYD F
IPC: B60C7/24
Filed: 1993-03-30
Abstract: COMPOSITE INJECTION-BLOW MOLDED WHEEL               AND METHOD OF FABRICATION               ABSTRACT OF THE INVENTION    A composite molded wheel assembly and method of construction wherein a separately formed injection molded tread is flow melt bonded to a blow molded rim.  The tread may comprise multiple tread pieces which are spaced over a tread surface.  Bond enhancing grooves and/or projections may be provided on inner surfaces of the tread pieces and/or rim.  The tread pieces flow melt bond to the rim during the molding of the rim.  The rim includes an axle bore containing hub, a tread support wheel box and a plurality of connecting spokes and intervening web pieces.  The method includes the steps of preparing and retaining the tread within the rim forming mold, introducing a parison of rim material having a melt temperature greater than the tread material, injecting pressurized air or gas to conform the rim material to the mold and tread pieces and controlling the molding cycle temperature, pressure and time parameters to promote bonding.
Patent CA-2093677-A1 (CA)
Inventor: RAO V DURGA N
IPC: F01L3/08
Filed: 1993-04-08
Abstract: Abstract A valve assembly (10) for use in an engine (12), comprising a valve stem guide (14) and a valve seat insert (40) mounted within the engine (12), the valve stem guide (14) and the valve seat insert (40) being provided with a solid film lubricant (30) im-pregnated therewithin.  A valve (20) is reciprocat-ingly received within the internal bore (16) of the tubular valve stem guide (14).  The valve (20) in-cludes an axially extending valve stem (22) which is received by the solid film lubricant (30) within the valve stem guide (14), thereby reducing friction therebetween.  The valve stem (22) and the valve stem guide (14) are formed so as to cooperate with associ-ated components within narrowly defined dimensional tolerances in a manner which has the characteristics of reduced friction and lessened passage of oil to the exhaust system of the engine (12).  The valve guide assembly (10) thus has the characteristic of being operable in an oil-starved state.  The invention com-prises the valve assembly (10) itself, the method of preparing it, and the composition of matter of which it is made.
Patent CA-2095650-A1 (CA)
Title: Method of preparing aromatic polycarbonates
Inventor: VAN HOUT HENRICUS H M
IPC: C08G64/22
Filed: 1993-05-06
Abstract: A B S T R A C T :            TITLE: Method of preparing aromatic polycarbonates The invention relates to a method of preparing aromatic polycarbonates by catalytic interface polymeri-sation of at least one bivalent phenol and a carbonyl halide in the presence of a polycondensation catalyst, which method is characterised in that the conversion is carried out in a two-phase system with continuous dosing of the carbonyl halide, which two-phase system is based on water and an organic solvent, in which the quantity of organic solvent at the beginning of the polyconden-sation lies between 10% and 75% of the quantity of orga-nic solvent which is required at the polymerisation temperature for dissolving the quantity of polycarbonate which may be formed from the quantity of bivalent phenol which is present at the beginning of the polyconden-sation, in that after dosing at least 20% of the car-bonyl halide a remaining quantity of organic solvent is added which is at least sufficient to keep the formed polycarbonate in solution.
Patent CA-2096459-A1 (CA)
Title: Collapsible wheelchair
Inventor: LEGAULT RENE E
IPC: A61G5/12
Filed: 1993-05-19
Abstract: The  collapsible  wheelchair  is  alternately  movable between a collapsed position and an open position.  The wheelchair comprises a framework having a pair of opposite side frames. The backrest assembly is pivotally connected at a lower end to the framework and is alternately movable between an open position where it is projecting vertically, and a folded position where it is collapsed against the seat.  Armrests  are pivotally connected to the backrest supports of the backrest assembly.  The rear wheels are removably connected to a corresponding side frame. The front wheels are each provided at a lower end of a corresponding mounting member and mounting swivels are used for pivotally connecting the upper end of the mounting members to the side frames so that each front wheel is alternately movable in a vertical plane between a ground-engaged position, where it is projecting under the framework, and a retracted position where it is set within the framework. The framework may also be provided with a horizontal folding system for further compaction.   The   wheelchair   provides   a   lightweight construction that occupies a minimum space when collapsed for facilitating the manipulation and transportation while still providing the user with comfort in the normal open position. Only the rear wheels need to be removed from the wheelchair.
Patent CA-2096926-A1 (CA)
Inventor: NAGAMI MASAAKI
IPC: G10K11/178
Filed: 1993-05-25
Abstract: In a noise controller which forms a noise cancelling sound having a phase opposite to and a sound pressure equal to those of a noise infiltrating into a closed space, any deviation in its transfer characteristics from the initial equalization is easily checked and judged owing to the provision of an adaptive filter 10 which automatically varies the filter coefficient and forms a cancelling signal for forming a cancelling sound, a coefficient updating means 11 which updates the filter coefficient based on an error signal after the noise has been cancelled, a second simulated transfer characteristics compensation means 13 which forms the initial equalization by simulating transfer characteristics of a transmission path via the space in which the noise is to be cancelled and forms a reproduced reference signal, a white noise generating means 15 which generates white noise to check the initial equalization, and an initial equalization judging means 18 which judges the accuracy of the initial equalization based on a ratio (S/N) of the reproduced reference signal obtained from white noise to the error signal.  A change in the conditions for cancelling noise is detected in the closed space, and any deviation from the initial equalization is judged.
Patent CA-2097107-A1 (CA)
Title: Tension bars for roll press for paper making machine
Inventor: SCHIEL CHRISTIAN
IPC: D21F3/04
Filed: 1993-05-27
Abstract: The present invention provides an improved roll press for the pressing of materials such as paper. The roll press of the present invention includes a first press roll supported in a first bearing bracket, which in turn is supported on a machine frame. The present invention also includes a second press roll supported in a second bearing bracket, and the second press roll is coupled to the first press roll by flexurally soft tie bar groups which are movable in the direction of the main axes of the press rolls to permit, in a loaded condition of the roll press, the second bearing bracket to be movable relative to the first bearing bracket. The tie bar groups are arranged in a plane which is approximately parallel to the press plane, and attachment means permit the tie bars to be inserted into the bearing brackets along the plane of the tie bars for being attached to the bearing brackets.
Patent CA-2097336-A1 (CA)
Title: Sanitary napkin having transversely segmented core
Inventor: OSBORN THOMAS W III
IPC: A61F13/15
Filed: 1991-12-10
Abstract: Disclosed is a sanitary napkin having a transversely segmented absorbent core. The core is divided into a plurality of independent segments (26') each able to move perpendicularly to the plane of the napkin without constraints from such movement imposed by adjacent segments.  Each segment may be disconnected from the adjacent segment, or connected to the adjacent segment by an isthmic connection (27) registered with the longitudinal centerline of the sanitary napkin or by two isthmic connections, one registered with each longitudinal side edge of the core.