baber/WOPTO huggingface dataset:
Patent CA-2003799-C (CA)
Inventor: SHELLENBERGER TIMOTHY J
IPC: F23N5/04
Filed: 1989-11-24
Granted: 1992-08-11
Abstract: ABSTRACT         In an induced draft, fuel-fired furnace a flow restric-tion in the external exhaust flue is detected, and the furnace burners responsively deactivated,  by a thermal  sensing switch mounted in a spaced relationship with a small flow opening formed in a sensor housing externally secured to the inducer fan outlet section over a wall opening therein.  During normal burner com-bustion product discharge flow through the exhaust flue, a small vane within the  inducer  fan outlet  section creates a venturi therein which draws ambient air within the furnace housing across the temperature sensing switch and into the fan outlet section through the sensor housing opening.   The temperature of this ambient  air  is below the  switch  set point  so that continued burner operation  is permitted.   However,  if the exhaust flue becomes restricted or  blocked the resulting pressure increase within  the  inducer  fan  outlet  section  overcomes  the  venturi effect therein and forces hot burner combustion products out-wardly through  the  sensor  housing and across  the temperature sensing switch.  When the temperature of the switch reaches its set point, the switch operates to deactivate the furnace burners.
Patent CA-2006643-C (CA)
Title: Electric motor having a main axle and eccentric axles
Inventor: KAWAI TERUO
IPC: H02K41/06
Filed: 1989-12-27
Granted: 1994-03-15
Abstract: ABSTRACT OF THE DISCLOSURE                     ELECTRIC MOTOR      An  electric  motor  comprises  a  plurality  of electromagnets  (1a,  1b ....)  arragned annularly in parallel, an electric switching circuit (8) connected-to each electromagnet (1a, 1b ....), an iron cylinder (4) arranged inside the electromagnets  (1a,  1b ....)  and having peripheral  surface to be attracted partially arbitrarily by part of the electromagnets (1a, 1b ....), a main axle  (5a)  positioned at the center of the iron cylinder (4) and coaxially arranged with an axial core of the iron cylinder (4) via bearings (6, 7), and eccentric axles (5b, 5b) provided at both ends of the main axle (5a) so that the eccentric axles (5b,  5b) are arranged in accord with the center of the electromagnets (1a, 1b ....) to define a power generating axle.
Patent CA-2008198-C (CA)
Title: Closure and seal for prefabricated building panels
Inventor: SPRONKEN JOHN R
IPC: E04B1/68
Filed: 1990-01-19
Granted: 1999-02-02
Abstract: A closure and seal assembly is described for joining the edges of concrete structural panels.  The arrangement comprises three main components, namely a pair of elongated pocket members each adapted to be embedded in a vertical corner of a concrete structural panel and an elongated spline member adapted to connect between the pocket members.  Each pocket member has an inner pocket with an elongated opening slot and a pair of resilient sealing strips fixed to the edges of the slot and adapted to extend into the pocket.  The spline has a web portion with T-flanges on the side edges thereof with the spline being adapted to be snugly held between the pocket sealing strips and the T-flanges being adapted to be held within the pockets.
Patent CA-2010945-C (CA)
Title: Easel
Inventor: PRESLEY STERLING L R
IPC: A47B97/04
Filed: 1990-02-26
Granted: 1993-03-23
Abstract: ABSTRACT OF THE DISCLOSURE           An easel adapted for use by disabled persons provides a frame for holding a canvas which can be tilted by means of a crank and rotated to bring different parts of the canvas into convenient reach of the artist.  The stand of the easel pivotally supports a plate on which the canvas-holding frame is rotatably mounted.
Patent CA-2011917-C (CA)
Title: Method and apparatus for in vitro reproduction and growth of cells in culture medium
Inventor: TAIARIOL VAN
IPC: C12M3/06
Filed: 1990-03-09
Granted: 2000-01-25
Abstract: Method and apparatus for in vitro culture of cells in culture medium to produce a viable cell mass of cell number greater than the initial cell number, wherein a cell mass of particular cell number is cultured in a first oxygen-permeable culture sub-compartment to an increased cell number, and then aseptically transferred directly from said first sub-compartment to a next serial culture sub-compartment providing additional medium and/or culture space for further growth and reproduction to produce a viable cell mass of still higher cell number. Continued transfers are made, if necessary, to successive serial culture sub-compartments until a viable cell mass of desired cell number is attained, particularly one useful for seeding of a production-scale culture system.
Patent CA-2013654-C (CA)
Inventor: PARKER KENT LEE
IPC: B60R21/215
Filed: 1990-04-02
Granted: 1997-07-15
Abstract: A method for integrally molding a pre-assembled door within an instrument panel to provide a cover for a safety air cushion device includes the steps of molding the plastic instrument panel about and over the door in situ of a mold cavity and thereafter the step of removing a portion of the instrument panel which overlies the door to provide an opening therein to expose the door for opening movement with respect to the instrument panel upon deployment of the air cushion device.  The invention further includes the resultant structure of an integrally molded door and instrument panel assembly having an opening formed in the instrument panel assembly for both defining a ledge to support the door and to define a path for impacting a air cushion device against the door to cause the door to be lifted from its integrally mold seated relationship on the ledge for further deployment of the air cushion device into the passenger compartment of a vehicle.
Patent CA-2014453-C (CA)
Title: Adamantane-derivatives in the prevention and treatment of cerebral ischemia
Inventor: BORMANN JOACHIM
IPC: A61P25/00
Filed: 1990-04-11
Granted: 2000-03-28
Abstract: Use of an adamantane derivative of the general formula (see above formula) wherein R1 and R2 are identical or different, representing hydrogen or a straight or branched alkyl group of 1 to 6 C atoms or, in conjunction with N, a heterocyclic group with 5 or 6 ring C atoms; wherein R3 and R4 are identical or different, being selected from hydrogen, a straight or branched alkyl group of 1 to 6 C atoms, a cycloalkyl group with or 6 C atoms, and phenyl; wherein R5 is hydrogen or a straight or branched C1 - C6 alkyl group, or a pharmaceutically-acceptable salt thereof, for the prevention or treatment of cerebral ischemia.
Patent CA-2018369-C (CA)
Inventor: BAAS KEVIN R
IPC: F16L21/06
Filed: 1990-06-06
Granted: 1994-05-24
Abstract: A pipe joint is disclosed in which a pipe section having a bell end is joined to a pipe section having a spigot end and in which a split locking ring is provided for preventing the sections from separating.  The locking ring may be expanded and contracted by means of a pair of lugs attached to the ends of the ring.  A U-shaped nut is positioned on one of the lugs and a threaded fastener passes through each of the lugs and the U-shaped nut for engaging a threaded aperture in the nu to draw the lugs together, and an additional threaded nut is positioned on the fastener between the lugs for forcing the lugs apart.
Patent CA-2023278-C (CA)
Title: Method to prevent backside growth on substrates in a vapor deposition system
Inventor: GOELA JITENDRA S
IPC: C23C16/458
Filed: 1990-08-15
Granted: 1993-08-31
Abstract: ABSTRACT OF THE DISCLOSURE     A method of preventing backside growth on substrates in a vapor deposition system wherein the substrate (10) is mounted on a plurality of graphite pillars (16) with the pillars being bonded to the substrate as near theperiphery thereof as possible. A hollow body (14) open on one side but closed on the other, and fabricated from flexible graphite suitably with graphite cement used as a bonding agent, is mounted on the pillars with the open end facing the substrate. The open end of the hollow body is pressed against the substrate and sealed with a bonding agent. This completely covers the backside of the substrate and thus prevents any vapor deposition thereon. Vapor deposition occurs, however, on the outer surface of the hollow graphite body. Since the graphite is quite flexible, the material coated or deposited thereon, for example silicon (Si), is readily broken into small pieces by using a piercing tool and a pair of pliers. Cracks developed in the coated hollow body do not propagate to the substrate because the substrate is perpendicular to the body, and the flexible graphite deforms as stresses develop due to material growth and thermal expansion mismatch.
Patent CA-2026272-C (CA)
Title: Apparatus for examining the mouths of bottles and the like
Inventor: APTER ROBERT
IPC: H04N7/18
Filed: 1990-09-26
Granted: 1994-04-19
Abstract: APPARATUS FOR EXAMINING THE MOUTHS OF BOTTLES OR THE LIKE        ABSTRACT         Photographs for detecting defects in the upper end face of the lip (43) of the mouth are taken by a camera (18) arranged on the axis of a bottle to be examined.  An annular, coaxial light-conducting member (30), which is surrounded by a light source (28), is disposed between the lip (43) and the camera (18).  It has a central viewing opening (40) with the shape of a double truncated cone (40a,40b).  The generated surface of the truncated cone (40a) adjacent to the lip forms a light exit surface (46a) to illuminate the lip (43).  The angle of slope of the truncated cone (40a) is selected so that an annular truncated cone of light (52) falls on the upper face of the lip (43) and has an angle of incidence of about 45° in the middle thereof.  This results in a dark-ground illumination of the lip (43).  Should a defeat be present in the region of the upper end face of the lip (43), this becomes visible as light on a dark background.          Lateral defects of the lip (43) can also be detected by an additional light-conducting member (34).     Fig. 4.
Patent CA-2033630-C (CA)
Title: Synergistic microbicides containing ionene polymers and borates for the control of fungi on surfaces
Inventor: BRYANT STEPHEN DENNIS
IPC: A01N59/14
Filed: 1991-01-04
Granted: 1996-12-24
Abstract: A mixture of an ionene polymer and a borate that is useful for the control of fungi.  This microbicidal mixture is especially effective on the surfaces of wood, leather, plastics, paint, paper and paperboard, and textiles.
Patent CA-2039138-C (CA)
Title: Joint de tuyau
Inventor: GREIG JOHN MARTYN
IPC: F16L23/12
Filed: 1990-08-20
Granted: 1999-08-10
Abstract: Raccord entre conduits (12, 14) comportant chacun une garniture (16, 18) en polyoléfine telle que le polythène. Les conduits sont espacés, la garniture dépasse de chacun d'eux et est raccordée à sa voisine par un accouplement par fusion (20). Les conduits sont interconnectés par une enveloppe (24, 26, 28) et du lait de ciment époxy (34) remplit l'espace se trouvant entre la garniture et l'enveloppe. Ladite garniture est insérée dans le conduit après que celui-ci est réduit en diamètre par passage dans une matrice. La pression de gaz ou de liquide à l'intérieur de la garniture, lors de l'utilisation est supérieure à celle que ladite garniture peut supporter seule, mais le lait de ciment transfère la charge de pression à l'enveloppe. Certaines modifications prévoient le remplacement de l'accouplement par un accouplement PECAT ou par des accouplements à brides raccordés aux conduits par fusion de manchons ou par électrofusion directement ou à l'aide de coupleurs d'électrofusion. One peut fixer la garniture en position à l'aide de raccordements d'électrofusion afin d'empêcher un changement des dimensions par réversion.
Patent CA-2040414-C (CA)
Title: Disposable oxide carrier for scavenging hydrogen sulfide
Inventor: SAMUELS ALVIN
IPC: B01D53/48
Filed: 1990-08-13
Granted: 1998-04-07
Abstract: A mineral carrier for those iron oxides which react to remove hydrogen sulfide and mercaptans from fluid streams.  The new carrier avoids the problem encountered with wood chip beds of bed solidification which occurs when reacted oxide particles adhere to each other. Calcined montmorillonite, for example, possesses the necessary crush strength, porosity, insolubility in water and wettability, to maintain bed perviousness and avoid caking as reaction continues to the full capacity of the oxide.
Patent CA-2042080-C (CA)
Inventor: GUELI CARMEN
IPC: A62C37/12
Filed: 1991-05-08
Granted: 2002-02-12
Abstract: A fusible link has two generally oval members in overlying relationship, the two members having relatively flat surfaces confronting one another. One member has a rectangular slot therein having tapered surfaces and the second member has a projection having beveled sides complementing the tapered surfaces. The projection is accommodated in the slot and seats on the tapered surfaces of the latter to provide a space between the confronting surfaces. The space is filled with a eutectic alloy which secures the members together. Pins on the members maintain the thickness of the space uniform. When the alloy is heated to a predetermined temperature it melts, thereby enabling the members to separate.
Patent CA-2048987-C (CA)
Title: Direct acting hydraulic valve lifter
Inventor: KRIEG JOHN J
IPC: F01L1/24
Filed: 1991-08-12
Granted: 1994-08-23
Abstract: IMPROVED DIRECT ACTING HYDRAULIC VALVE LIFTER Abstract of the Disclosure An improved direct acting hydraulic valve lifter (DAHVL) has features including reduced dead oil storage with lower mass and faster filling, improved air venting, internal oil recirculation and targeted oil supply that combine to reduce the presence of air in the lifter.  Foam filling and baffle reconfiguration are included among means for reducing stored oil volume which can also improve the follower cylinder support. Means for venting along the piston and cylinder of the lifter are shown.  The various features combine to limit air intake and to more quickly expel air which does enter the lifter.
Patent CA-2052063-C (CA)
Title: Microbiological process for the production of hydroxylated heterocycles
Inventor: KIENER ANDREAS
IPC: C07D241/44
Filed: 1991-09-23
Granted: 2000-03-28
Abstract: Novel microorganisms are disclosed which are capable of growing with 2,5-dimethylpyrazine as the sole carbon, nitrogen and energy source. These microorganisms hydroxylate heterocycles of the general formula:   ( see above formulas  I  and  II ) to form heterocycles of general formula:   ( see above formulas I and II ) The latter compounds are accumulated in the growth medium.
Patent CA-2052271-C (CA)
Title: Call path resource allocation in a wireless telecommunications system
Inventor: BOLLIGER BRIAN DAVID
IPC: H04W36/00
Filed: 1991-09-25
Granted: 1996-01-09
Abstract: A wireless telecommunication system where call path resources are allocated in an orderly manner by queuing call requests during, for example, radio channel unavailability, and assigning radio channels to queued call requests as they become available. To accomodate movement of the mobile station within the service area, a plurality of queues are provided for different locations and a call request is sequentially placed in different queues as the mobile station moves. The system is usable for both incoming and outgoing calls.
Patent CA-2055144-C (CA)
Title: Vector calculation apparatus capable of rapidly carrying out vector calculation of two input vectors
Inventor: OOTA SHINGO
IPC: G06F17/16
Filed: 1991-11-07
Granted: 1997-08-19
Abstract: In a vector calculation apparatus, a vector adder (21) produces an adder output signal (E) by calculating a three-term sum of a first, a second, and a third adder input signal which are produced in accordance with the adder output signal, a predetermined value ("0"), a first vector (A), and a second vector (B) under control of a control circuit (29).  A first selecting circuit (26) selects, as a first selected signal, one of the adder output signal and the first vector.  A second selecting circuit (27) selects, as a second selected signal, one of the adder output signal and the second vector.  A zeroth selecting circuit (24) selects, as a zeroth selected signal, one of the adder output signal and the predetermined value.  The vector adder is supplied with the first selected signal as the first adder input signal, with the second selected signal as the second adder input signal, and with the zeroth selected signal as the third adder input signal.
Patent CA-2057180-C (CA)
Inventor: YOU CHIN-SAN
IPC: A63B59/00
Filed: 1991-12-06
Granted: 1998-06-30
Abstract: A shock-absorbing racket frame made of fiber reinforced plastic material is mainly composed of a head frame and a shaft-handle portion. The racket frame is further provided with a thin plastic tube wrapped around by a first outer layer made of fiber reinforced plastic material and intended to form the head frame and the front segment of the shaft-handle portion. The thin plastic tube is further wrapped around by a second outer layer of fiber reinforced plastic material intended to form the hand grip of the shaft-handle portion.A reinforced surface of fiber reinforced plastic material is disposed across the gap between the two outer layers. The fibers making up the head frame are thus interrupted and disconnected with the fibers making up the hand grip of shaft-handle portion. The transmission of the shock wave from the head frame is therefore effectively interrupted at the position where the break of fibers takes place, thereby resulting in the shock wave being mitigated to an extent that the player's hand holding the racket is not subjected to injury.
Patent CA-2059883-C (CA)
Title: Key telephone system provided with telephone sets connectable to add-on modules
Inventor: KOMURO ISAKU
IPC: H04M9/00
Filed: 1992-01-23
Granted: 1995-08-08
Abstract: Disclosed  is  a  key  telephone  system  provided with a key service unit (KSU) 1 having a central control unit 6, and a digital key telephone set (DKT) 10 having a local control unit 13 for communications of control data with the central control unit 6.  First and second add-on modules  (ADMs)  24 and 34 for communications of control data  with  the  central  control  unit  6  are  optionally connectable to the DKT 10.   When control data (up-data) are transmitted from the local control unit 13 of the DKT 10 to the KSU 1, a disable signal is given from the DKT 10 to the first ADM 24 to disable up-data from being transmitted from the first ADM 24.   At this time, the first ADM 24 also outputs a disable signal to the second ADM 34 to disable up-data from being transmitted from the second ADM 34.  At any selected time when no up-data are transmitted from the DKT 10, an enable signal is given from the DKT 10 to the first ADM 24.  In response to this enable signal, when up-data to be transmitted from the first ADM 24 are present, the first ADM 24 transmits the up-data  and  further  gives the  disable  signal  to  the second ADM 34 to disable up-data from being transmitted from the second ADM 34.  On the other hand, in response to the enable signal from the DKT 10, when up-data to be transmitted from the first ADM 24 are absent, the first ADM 24 outputs an enable signal to the second ADM 34 to enable up-data to be transmitted from the second ADM 34.
Patent CA-2061199-C (CA)
Inventor: TIAO CHIN-SHENG
IPC: C08J9/06
Filed: 1992-02-24
Granted: 2002-07-16
Abstract: Low density polyurethane foams having improved resistance to degradation of properties of compression set and flexibility when exposed to elevated temperatures and pressures are made by reacting a polyisocyanate of about 2.3 to 2.7 functionality at an isocyanate index of about 1.0 with a blend of polyols, catalysts, blowing agents and the like in which the polyols are a mixture of a polyether polyol having a molecular weight of at least 5,000 and a polymer polyol, and the catalysts are a mixture of a major portion of an amine catalyst and a minor portion of a metal catalyst. The foams made by this invention are particularly well suited for use as components of sport shoes that are assembled by vulcanization.
Patent CA-2061846-C (CA)
Title: Incremental pressure-compensating drip irrigation emitter
Inventor: ECKSTEIN GERSHON
IPC: B05B1/30
Filed: 1992-02-25
Granted: 2001-06-19
Abstract: An outer wall member, such as the wall of a tube, connectable to or integral with the pipe, has an opening in communication with the exterior of the pipe. An inner member is fixedly positioned against the inside of the outer member for separating the opening from the fluid path through the pipe. The inner member has an inner surface defining at least a portion of an inner chamber in communication with the pipe fluid path. The inner and outer members define a labyrinth having an effective cross-sectional area, an inlet end for receiving pressurized fluid from the pipe, and an outlet end in communication with the pipe opening for emitting fluid. A plurality of channels couple intermediate portions of the labyrinth directly to the opening, thereby bypassing respective parts of the labyrinth. A resilient wall, functioning as a valve, forms a barrier between the channel and the inner chamber and is responsive to the pressure in the inner chamber for restricting the channel when the pressure exceeds a first predetermined pressure. This prevents the fluid from bypassing part of the labyrinth, increases the effective length of the labyrinth, and thereby reduces the flow that takes place at the higher pressure.
Patent CA-2061911-C (CA)
Title: Space-saving optical fiber cable closure
Inventor: JONES WESLEY WILLING
IPC: G02B6/24
Filed: 1992-02-26
Granted: 1998-05-26
Abstract: An optical fiber cable closure includes a cable termination assembly and a cover into which the termination assembly is inserted. The cable termination assembly includes an end plate assembly through which distribution cables to be spliced extend. From the end plate is cantilevered a distribution portion which supports an optical fiber organizer. Mounted on the fiber organizer adjacent to a longitudinal edge thereof are a plurality of stacked organizing modules. Each module includes a plurality of nests for receiving splicing devices such that the axes of the fibers in the devices are parallel toeach other and to an axis of the closure. Optical fibers from each incoming cable are routed in individual bundles or as ribbons from the distribution portion to selected ones of the modules. The stacked organizing modules are held spaced above the fiber organizer to allow fiber to become routed therebetween thereby allowing a radius of curvature which exceeds that if the fiber had been routed between the stack of modules and an opposite longitudinal edge.
Patent CA-2065220-C (CA)
Title: Method of forming a unitized absorbent product with a density gradient
Inventor: DABI SHMUEL
IPC: A61F13/15
Filed: 1992-05-19
Granted: 2003-03-18
Abstract: A method of constructing multi-layer products for absorbing fluids is disclosed. In the methods of the present invention, two or more layers of materials chosen to vary in recovery are compressed such that an absorption gradient forms through the continuous intimately associated layers. A first layer preferably remains densified while a second layer "blooms" to form an open, absorptive layer, which acts as a reservoir, drawing absorbed fluids into the densified layer, where they are retained.
Patent CA-2068425-C (CA)
Title: Fast phase shift adjusting method and device for linear transmitter
Inventor: GAILUS PAUL HOWE
IPC: H03F1/32
Filed: 1991-09-20
Granted: 1995-11-28
Abstract: A method (100) and device (300) are set forth for, where a linear transmitter has inphase and quadrature modulation paths for an input signal and at least one open feedback signal path is provided, substantially correcting an initial phase relationship between an input signal having an input signal vector with a phase and a magnitude, and an input feedback signal having an input feedback signal vector with a phase and a magnitude. The present invention provides a more time-efficient phase correction to at least one feedback signal path.