baber/WOPTO huggingface dataset:
Patent CA-2017658-C (CA)
Title: Multizone catalytic reforming process with a plurality of catalysts
Inventor: WANG LI
IPC: C10G65/12
Filed: 1990-05-28
Granted: 1998-07-28
Abstract: A hydrocarbon feedstock is catalytically reformed in a process which comprises contacting the feedstock and hydrogen at catalytic reforming conditions in an initial catalyst zone with a catalyst comprising platinum, germanium and halogen on a solid catalyst support. The product stream and hydrogen from the first catalyst zone is thereafter contacted at catalytic reforming conditions in a terminal catalyst zone with catalyst A or B where catalyst A is essentially free of germanium and comprising platinum, germanium, halogen and a metal promoter on a solid catalyst support and where catalyst B comprises platinum, germanium, halogen and a metal promoter on a solid catalyst support.
Patent CA-2019595-C (CA)
Title: Apparatus for slicing vegetables
Inventor: JULIAN JOHN C
IPC: B26D7/06
Filed: 1990-06-22
Granted: 2001-05-08
Abstract: An apparatus for slicing vegetables includes a stationary member holding stationary knives about the periphery of a rotating impeller hub. The hub has a hollow central opening for receiving vegetables. A plurality of circular tubular extensions having circular openings therein extending radially from the central opening in the impeller hub. Each circular opening has an impeller tube located therein. The impeller tube transports the vegetable outwardly by centrifugal force against the cutting knives. As the impeller hub rotates inside the stationary knife holding member the impeller tube simultaneously rotates upon the impeller hub such that each successive slice of the vegetable is at an angle, preferably 90 degrees, to the preceding slice. A bearing is located between the impeller tube and the impeller hub to allow this relative rotation. A pair of seals, one on each side of the bearing, prevents water and other contaminants from entering the bearing.
Patent CA-2021157-C (CA)
Title: Tandem mounted face seals
Inventor: KORENBLIT IZYA
IPC: F16J15/00
Filed: 1990-07-13
Granted: 1997-10-21
Abstract: Tandem mounted face seals for use in centrifugal pumps with dynamic seals.  One face seal has a flexible lip and the other face seal has a non-flexible lip to ensure sealing at high static or dynamic pressures.
Patent CA-2028720-C (CA)
Title: Amplifier adapter for optical lines
Inventor: TAMBURELLO MARIO
IPC: H04B10/2581
Filed: 1990-10-29
Granted: 1998-05-12
Abstract: Adapters for interconnecting optical fiber lines, including optical amplifiers, with optical transmitters and receivers in which the operating parameters of the optical amplifiers are different from the operating parameters of the transmitters and receivers.  The adapters convert the optical signals from a transmitter to those within the operating parameters of the optical amplifier and convert the optical signals from an optical amplifier to those within the operating parameters of the receiver.  The adapter receiving the optical signals from the transmitter also has provision for inserting service signals and the adapter receiving signals from an optical amplifier has provision for separating the optical signals from the service signals.  Also, switching devices for changing transmitters and/or receivers or lines in the event of component failures.
Patent CA-2033014-C (CA)
Title: Heart rate monitor
Inventor: LEKHTMAN GREGORY
IPC: A61B5/22
Filed: 1990-12-21
Granted: 1999-09-14
Abstract: An elongate hollow cylindrical member houses electronic circuitry and has disposed on its surface, on either end, a live electrode and a spaced common electrode.      The electronic circuitry includes a difference amplifier, and electromyogram signals detected by the electrodes are applied to opposite polarity inputs of the difference amplifier. As the electromyogram signals are of substantially equal amplitude and phase, the electromyogram signals will be subtracted from each other in the difference amplifier to provide a substantially zero output due to electromyogram signals at the output of the difference amplifier. However, electrocardiograph signals, being of opposite phase, will be added in the difference amplifier so that the output of the difference amplifier is substantially due to only the electrocardiograph signal.
Patent CA-2033136-C (CA)
Title: Knock-down base for platforms
Inventor: LUBINSKI RONALD
IPC: E04G3/30
Filed: 1990-12-24
Granted: 1994-12-27
Abstract: A knock-down swing stage base includes a pair of extruded aluminum beams with generally C-shaped cross-sections. The beams are oriented parallel to one another and joined by identical aluminium cross-members. Each cross-member is integrally extruded with paired ribs defining a set of screw receiving passages in a predetermined spacing arrangement. Sets of apertures are formed in the webs of the beams at regular intervals, each set observing the spacing arrangement characteristic of the set of screw-receiving passages. Each cross-member is located with its set of screw-receiving passages simultaneously registered with a set of aperture in one beam and a corresponding set in the other beam. Screws are used to releasably secured the cross-members to the beams. A combination of left-hand and right-hand screws are used to enhance resistance of the base to twisting. Brackets are shaped to receive and slide along an upper flange extruded with each beam. Each bracket carries an upwardly-directed length of pipe for receipt of a vertical post associated with an enclosing structure, such as a hand rail.
Patent CA-2033660-C (CA)
Title: Apparatus and method for separating water from crude oil
Inventor: AL-YAZDI AHMED M
IPC: C10G33/06
Filed: 1991-01-04
Granted: 1997-03-18
Abstract: Method and apparatus for separating water and  crude  oil  mixtures  and  other  two-phase  fluid mixtures of components of different densities.   The mixture is pumped through a conduit in the form of a vertical spiral at a velocity that impels the heavy phase toward the outside of the spiral.  A fraction is withdrawn from the outside of the turns of the spiral and is led downwardly to the bottom of a vertical settling tank.  Any light phase removed with the heavy phase floats to the top in the settling tank and is reintroduced at the top of the spiral.
Patent CA-2037494-C (CA)
Title: Electrophotographic recording apparatus
Inventor: FUJII YASUO
IPC: G03G15/16
Filed: 1991-03-04
Granted: 1996-07-09
Abstract: A transfer unit has a plastic end block at each end.  The end block includes a bearing for supporting an auxiliary roller,  and an arm having at its end portion a pivot received by a lower casing.  The bearing and the arm are formed integrally with the end block.  A leaf spring located under the transfer unit supports it along with the roller in movable around the pivot.  When an upper casing is shut down, a photoreceptor drum sup-ported in the upper casing pushes down the transfer unit against the elastic force of the leaf spring.  Since the positions of the transfer unit and the roller are deter-mined with respect to the photoreceptor drum, good duplicativity can be obtained.  In this state, roller means serves to secure a predetermined space between the photoreceptor drum and the auxialiary roller.
Patent CA-2041316-C (CA)
Title: Driving method and apparatus of a pnpn semiconductor device
Inventor: TASHIRO YOSHIHARU
IPC: H01S5/042
Filed: 1991-04-26
Granted: 1994-07-26
Abstract: A driving method of a pnpn semiconductor device includes the steps of applying a voltage higher than a holding voltage of the pnpn semiconductor device to an anode electrode thereof, supplying a control signal light to the pnpn semiconductor device to set the pnpn semiconductor device into ON state, and supplying an information signal light to the pnpn semiconductor device to emit an output light. The control signal light and the information signal light is time-sequentially supplied to the pnpn semiconductor device under the voltage applied thereto.
Patent CA-2041936-C (CA)
Title: Photoconductive imaging members with titanium phthalocyanine
Inventor: HOR AH-MEE
IPC: G03G5/06
Filed: 1991-05-07
Granted: 2000-06-06
Abstract: A photoresponsive imaging member comprised of a supporting substrate, a gamma titanyl phthalocyanine photogenerator layer, and a charge transport layer.
Patent CA-2044873-C (CA)
Title: Blade edge loading control for doctoring apparatus
Inventor: GOODNOW RONALD F
IPC: B41F9/10
Filed: 1991-06-18
Granted: 1995-07-04
Abstract: In a doctoring apparatus,  blade edge loading is controlled along the sides of the surface being doctored.
Patent CA-2050103-C (CA)
Title: Methods of and apparatus for polishing an article
Inventor: SNYDER DONALD Q
IPC: G02B6/36
Filed: 1991-08-28
Granted: 1998-02-10
Abstract: An apparatus (19) which is capable of being used in the field is adapted to polish fiber end faces each terminated by a plurality of cylindrically shaped ferrule type connector plugs (30-30). The apparatus includes a platform (50) which includes a plurality of nests (52-52) each adapted to receive a plug such that a plug end face (29) is disposed adjacent to a polishing surface and such that an end portion of fiber which protrudes from each plug engages the polishing surface. Facilities are provided in each nest for applying forces to each plug which may be varied to control the pressure between each fiber end face and the polishing surface and, if desired, subsequently between each plug end face and the polishing surface. Relative motion between the plurality of plugs and the polishing surface is caused to exist such that the polishing surface is turned rotatably while being revolved about an axis to provide uniformly polished fiber end faces. The apparatus also may be used to contour-polish simultaneously a plurality of plugs prior to terminating optical fibers therewith.
Patent CA-2053571-C (CA)
Title: Gas reacting apparatus and method
Inventor: SPINK DONALD R
IPC: B01D53/18
Filed: 1991-10-16
Granted: 1999-02-16
Abstract: Gas reacting apparatus and method are described for wet mass transfer of solute gases from a gas stream with a  liquid  or  slurry  reacting  medium capable  of chemisorption of solute gases in the gas stream.   The apparatus  comprises  an  elongated  conduit  means  and plurality of dual-fluid spray means coaxially spaced in series within the conduit means and countercurrently or cocurrently directed to the gas stream for spraying the liquid or slurry reacting medium into the conduit means to form a plurality of spray contact zones of uniformly-distributed fine droplets, which may be in individual gas-liquid contact zones,  wherein intimate contact of high interfacial surface area between the sprayed liquid or slurry and the gas stream is effected to remove solute gases from the gas stream.  Such individual gas-liquid contact zones may be separated by demisters which agglomerate  and remove  liquid droplets  from the gas stream  before  it  passes  to  the  next  zone,  with  a demister also being provided at the outlet.
Patent CA-2053784-C (CA)
Title: Electrolytic process for stripping a metal coating from a titanium based metal substrate
Inventor: SUE JIINJEN A
IPC: C25F5/00
Filed: 1991-10-21
Granted: 1997-12-23
Abstract: An electrolytic process for stripping a group IVB or VIB metal coating compound from a titanium based metal substrate using an aqueous electrolyte comprising an oxidizing reagent and an acid with a solution pH of less than 4.5.
Patent CA-2060348-C (CA)
Title: Pressure equalizer for use at deep sea
Inventor: KOMAKI HIDEAKI
IPC: H01M8/04
Filed: 1992-01-30
Granted: 1997-08-12
Abstract: The pressure equalizer is used as pressure equalizing system  a gas supply system or the like.  Internal and external pressures of a vessel anchored at a sea bed are equalized so that the vessel can be used at a deep sea without making the vessel itself pressure resistant.
Patent CA-2065357-C (CA)
Inventor: SALTIN LARS
IPC: C03B5/00
Filed: 1990-08-23
Granted: 1995-11-28
Abstract: The invention relates to a method of de-structing mineral-wool scrap and re-using the scrap in the manufacture of mineral wool. The method is characterized by introducing the mineral-wool scrap into a container in a finely-divided state, and causing the finely-divided scrap to pass through a heating zone generated by an oxygen burner. The mineral-wool scrap is converted to a liquid state in the heating zone and the molten scrap is then introduced to a molten bath produced in a furnace for the manufacture of mineral wool, or to an interme-diate container which is mounted between the furnace and a spinning machine. Molten mate-rial taken from the furnace is also delivered to the intermediate container. The invention also relates to an arrangement for destructing min-eral-wool scrap and re-using the scrap in the manufacture of mineral wool. This arrange-ment includes a container (20, 31), at least one oxygen burner (25) mounted in the container wall (24; 33, 34) and functioning to melt the mineral-wool scrap, at least one conduit (21) for removing molten mineral-wool scrap, this conduit (21) connecting the container (20, 31) with a furnace (200) intended for the manufac-ture of mineral wool, or to an intermediate con-tainer (40) mounted between the furnace (200) and a spinning machine.
Patent CA-2065733-C (CA)
Title: Annular support for a seal for a tilt piston
Inventor: PLUMMER DARRILL L
IPC: F16J9/00
Filed: 1991-07-16
Granted: 1994-02-01
Abstract: An apparatus includes a tilt piston (10) having a piston head (12). The piston head (12) is reciprocally disposed within a cylindrical bore (16) formed in a housing (14), the bore (16) being oriented along an axis. A seal (26) is mounted circumferentially about the piston head (12). The seal (26) has an outer diameter (27) that exceeds an inner diameter (56) of the cylindrical bore (16).  The seal (26) extends radially in a first direction having an axial component. A support (52) is mounted circumferentially of the piston head adjacent the seal (26). The support (52) has an outer diameter (54) less than the outer diameter (27) of the seal (26). The seal (26) is a continuous annular ring which may be of a circular or rectangular cross section. The seal (26) and the support (52) may be formed as a unitary member or may be two distinct elements. The support (52) contacts the bore (16) during a portion of travel of the piston (10) within the bore (16).
Patent CA-2071457-C (CA)
Title: Magnetic toner and process for producing magnetic toner
Inventor: MIKURIYA YUSHI
IPC: G03G9/087
Filed: 1992-06-17
Granted: 1999-09-14
Abstract: A magnetic toner which is excellent in the low temperature fixability and the anti-offset properties is disclosed. The binder resin of the tong comprises a non-crosslinked styrene polymer, a non-crosslinked styrene copolymer or a mixture of these, and a polyolefin, wherein; the binder resin has, in its molecular weight distribution pattern measured by gel permeation chromatography (GPC), at least one maximal point (peak) in each region of a low molecular weight of from 5,000 to 20,000 and of a high molecular weight of from 200,000 to 1,000,000, where a height H1 of a maximum peak in the low molecular weight region, a height H3 of a maximum peak in the high molecular weight region and a height H2 of a minimal point between both of said peaks satisfy the relationship H1:H2:H3 of 3 - 25 : 1 : 1.5 - 12; and has a weight average molecular weight Mw and a number average molecular weight Mn in a value Mw/Mn of from 15 to 80.
Patent CA-2073022-C (CA)
Title: Liquid sprayer
Inventor: MIZUSHIMA HIROSHI
IPC: B05B9/08
Filed: 1990-10-05
Granted: 2001-08-14
Abstract: The present invention has its object the provision of a liquid sprayer of a long spraying time and a simple construction with respect to liquid sprayers having a cylinder and a piston.      In order to accomplish this object, the liquid sprayer according to the present invention is constructed so as to have a long piston stroke, and is adapted to be able to spray liquid steadily without loosening a spraying head or a piston with a long stroke being used.      In the liquid sprayer according to the present invention provided with an erecting wall having an upper end portion engaged with the upper portion of said cylinder, and being attached to the inner or outer surface of said neck portion; an erecting guide trunk connected to the lower end of the erecting wall, and surrounding the erecting wall from outside with a constant distance therefrom; and a sliding trunk attached to the member moving the piston, and being up- and downwards movably fitted into the gap between said erecting wall 17 and guide trunk, said sliding trunk is guided by the guide trunk, thereby allowing the sliding trunk to be stably operated up- and downwards even if a longer stem is used.
Patent CA-2073293-C (CA)
Inventor: GARSHELIS IVAN J
IPC: H01L41/12
Filed: 1992-07-07
Granted: 1996-11-05
Abstract: A torque sensor comprises a magnetoelastically active element, and a magnetic sensor, such as a Hall effect sensor, responsive to the field of the magnetoelastically active portion.   In the preferred embodiment, the magnetoelastically active portion comprises a ring of material endowed with an effective uniaxial  magnetic  anisotropy  such  that  the circumferential direction is the easy axis, and magnetically  polarized  in  a   substantially circumferential direction.  The ring is attached to the torqued member, such as a rotating shaft, so that application of a torque to the shaft is transmitted to the ring.  The torque on the ring reorients the circumferential magnetic orientation of the ring, producing a helical magnetic orientation having both circumferential and axial components.  A magnetic field vector sensor is mounted on a flux collector in a fixed position relative to the ring and oriented so that it responds only to axial magnetic field components of the ring.  The output of the sensor is thus proportional to the change in orientation of the magnetization resulting from torque applied to the shaft and transmitted to the ring.
Patent CA-2078160-C (CA)
Title: Self-lubricating ocular prosthesis
Inventor: KELLEY KEVIN V
IPC: A61F2/14
Filed: 1992-09-14
Granted: 1995-01-03
Abstract: A self-lubricating ocular prosthesis includes a solid rigid prosthetic eye body with a chamber in the body opening through an access passage through the posterior surface of the body closed with a releasable cap having an outside face conforming to the posterior surface of the body which abuts the orbital cavity.  The cap is of a semi-rigid or flexible polymeric resin to retain a fluid in the chamber which is dispensed through bore openings from the chamber through the surface of the eye body.  Liquid may be inserted directly into the cavity through the bore opening while the prosthesis is in place.  The prosthesis may also include a dispensing ball or depressible button to dispense fluid from the prosthesis.
Patent CA-2085754-C (CA)
Title: Gradation compensation apparatus of video image
Inventor: IZAWA YOSUKE
IPC: G09G5/10
Filed: 1992-12-18
Granted: 1995-08-15
Abstract: A level of an input luminance signal for a pixel is compared with step values which change stepwise in level in a predetermined range of level, and distribution of the levels of the input luminance signal in the predetermined range of level is represented by a cumulative histogram.  Subsequently, a histogram value is derived from the outline of the cumulative histogram, and a compensation value is produced on the basis of the histogram value, and the compensation value is added to the input luminance signal, and hence a compensated luminance signal is output to control the luminance of a video image.
Patent CA-2088989-C (CA)
Title: Electrical distribution system having mappable control inputs
Inventor: BILAS RONALD J
IPC: H02J13/00
Filed: 1992-06-29
Granted: 2001-10-16
Abstract: In an electrical distribution system for controlling current paths through a plurality of associated circuit breakers, a programmable circuit arrangement operates the circuit breakers by remote control in at least the open and closed circuit positions. The circuit arrangement includes a termination circuit for receiving different kinds of remote control signals, each of which is associated with one of the circuit breakers for commanding that each of the circuit breakers open or close its associated current path. The arrangement also includes a programmable controller, which responds to each of the different kinds of remote control signals and to a user-defined program indicating the kind of remote control signal which commands the associated circuit breaker, for generating control signals. An interface circuit then responds to the generated control signals by controlling the circuit breakers between the open and closed positions. The programmable controller may also include a display for indicating the status of the circuit breakers locally and/or remotely.
Patent CA-2092016-C (CA)
Inventor: RALPH DONALD JOHN
IPC: G02B6/44
Filed: 1993-03-19
Granted: 1995-09-12
Abstract: A biaxially oriented heat shrinkable multilayer stretch film useful as a trayed poultry overwrap includes outer layers each comprising a blend of VLDPE (density below about 0.914 g/cm3 and an ethylene alpha-olefin plastomer (density below about 0.90 g/cm3).
Patent CA-2094443-C (CA)
Title: Vented ball valve with lock-out ring
Inventor: KIEPER DOUGLAS A
IPC: F16K24/02
Filed: 1993-04-20
Granted: 2003-10-14
Abstract: The present invention relates to a vented ball valve and lockout ring assembly.       A vented valve assembly including a valve body having a vent hole therein, and first and second flow-through ends with a valve member receiving chamber thereinbetween, and a stem receiving passage communicating with the chamber. A valve member is disposed within the chamber. The valve member has a throughbore therein in operable alignment with the first end second flow-through ends and at least one valve member vent hole through the wall of the valve member in flow communication with the throughbore. A stem extends through and is rotatably mounted within the stem receiving passage and engageable with the valve member for rotating the valve member in and out of flow-through alignment. A venting means in cooperation With said stem provides selected flow communication with the atmosphere through the valve body vent hole, between the stem and stem receiving passage, through the chamber, and through said valve body vent hole to the flow-through ends.       A removable, generally "d" shaped lock-out ring having a circular main body with a projection having a hole therein extending outward therefrom is rotatably and coaxially mounted around a valve body and positioned between the stem and union nut and alignable with a hole formed in the handle when the valve is in the closed position, whereby a lacking member of a padlock can be inserted through the hole in the locking ring and the hole in the handle to prevent rotation of the handle and opening of the valve.