baber/WOPTO huggingface dataset:
Patent CA-1294533-C (CA)
Title: Gas fires
Inventor: FREESTONE PETER J
IPC: F24C3/00
Filed: 1986-09-18
Granted: 1992-01-21
Abstract: Abstract of the Disclosure GAS FIRES      A solid fuel or log effect open gas fire comprises a plurality of refractory bodies shaped to resemble coals or logs arranged above a burner, the walls of the burner being of ceramic fibre material.  The refractory bodies may also be of ceramic fibre material.
Patent CA-1278358-C (CA)
Inventor: FONTAINE GUY R
IPC: F04B49/06
Filed: 1986-10-03
Granted: 1990-12-27
Abstract: A pump in accordance with the invention has moving equipment (32) driven by a reversible synchronous motor (42) whose windings (44, 45) are connected to a power source by means of optocoupled triacs (48, 49) which, under microprocessor control, are used to adjust the flow rate of the pump by acting on its admission period (by powering the windings in one direction) and on the pumping cycle time (by varying the period for which the pump is unpowered in each cycle).
Patent CA-1295814-C (CA)
Title: Method of purifying flue or exhaust gases
Inventor: SCHMID PETER J
IPC: B01D53/86
Filed: 1986-10-08
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE     A method of purifying an exhaust or flue gas by removing environmentally noxious gases therefrom, which comprises the steps of intensively mixing the gases with a contact liquid containing a catalyst until the gases and liquid have formed a foam, and reacting the gases with the catalyst in the formed foam.
Patent CA-1298283-C (CA)
Title: Shaking apparatus
Inventor: BAILEY FRANK V
IPC: H01T2/02
Filed: 1987-01-14
Granted: 1992-03-31
Abstract: ABSTRACT OF THE DISCLOSURE             A variably unbalanced rotating mechanism comprising a frame, a main shaft having a longitudinal axis and supported on the frame for rotation about the longitudinal axis, a drive for rotating the main shaft, first and second eccentric weights mounted for rotation coaxially with the main shaft, and a mechanism for rotating the weights in common with the main shaft and for selectively rotating the weights in opposite directions relative to each other and relative to the main shaft and independently of main shaft rotation.
Patent CA-1296034-C (CA)
Inventor: KINGSLEY RICHARD J
IPC: B60J3/00
Filed: 1987-04-07
Granted: 1992-02-18
Abstract: EXTERIOR VISOR FOR AUTOMOTIVE VEHICLES       ABSTRACT OF THE DISCLOSURE An exterior visor (20') for automotive vehicles (21) formed of two or more symmetrical visor sections (20a, 20b) adapted to be abutted in end-to-end relation to form an exterior visor (20') having an overall length "L" in the range of from about 55" to about 70", or more, wherein each visor action (20a, 20b) is provided with an integral, downwardly projecting, fore/aft vertical flange (32, 34) adapted to he sandwiched between complementally shaped reinforcing plates (35, 36) and permanently secured together by rivets (381 with the thus assembled flanges (32, 34) and plates (35, 36) defining an integral reinforcing support or brace for the visor (20') amd wherein, when disassembled, the visor sections (20a, 20b) may be stacked in nested relation and packaged in a box (31) having a length "L", a heighth "H" and a depth "D" wherein the dimensions "L", "H" and "D" are such that "L" + 2 ("H" + "D") is equal to or less than 84" even where the overall length of the assembled visor (20') may be on the order of 70", or more.
Patent CA-1303434-C (CA)
Title: Sensing the open and/or closed condition of valves
Inventor: MAGEE ANTHONY J
IPC: F16K37/00
Filed: 1987-04-10
Granted: 1992-06-16
Abstract: ABSTRACT   A valve is disclosed which includes a first magnetic sensing means (71) and a closely positioned second magnetic sensing means (73).  A valve shaft carries magnetic material (91) which is moved as the valve is opened or closed.  The first magnetic sensing means (71) is magnetically held in one of its states when the valve is open, by the presence of the magnetic material (91).  When the valve is closed the magnetic material (91) influences the second magnetic  sensing means (73) and trips it into an alarm condition.  The first magnetic sensing means (71) also trips into an alarm condition when the valve is closed.  Thus, there is back-up sensing of the valve being closed.  The second magnetic sensing means (73) also acts to provide an alarm if a person should maliciously attempt to fool the sensors by placing magnetic material near the first magnetic sensing means (71) to subsequently close the valve, without causing an alarm.  When such magnetic material is brought into proximity of the first magnetic sensing means (71) it will cause the second magnetic sensing means (73) to trip into an alarm state.         Sensing means fitted in a housing for attaching to a valve to provide this result is also disclosed.
Patent CA-1293392-C (CA)
Title: Single tube parallel flow coriolis mass flow sensor
Inventor: LEVIEN ANDREW K
IPC: G01F1/84
Filed: 1987-05-14
Granted: 1991-12-24
Abstract: ABSTRACT OF THE DISCLOSURE     A single tube  parallel  flow Coriolis mass  flow rate sensor  including  a  single  continuous  tube  folded  upon itself in a generally elongated helically looped fashion so that a straight input segment of the loop is positioned in parallel to a straight output segment and the fluid flowing through  the  loop flows  in  the  same  direction  in  both segments.  The extremities of the two straight segments are rigidly  joined  together  and  affixed  to  an  enclosing housing.  An oscillatory drive mechanism is coupled between the straight segments at their mid-points and  a pair of sensing mechanisms are coupled between the tubes at points intermediate the respective ends and their mid-points.
Patent CA-1288133-C (CA)
Title: Method and apparatus for directing power between three-phase mains and a d.c. circuit
Inventor: KAEHKIPURO MATTI
IPC: H02M7/06
Filed: 1987-05-20
Granted: 1991-08-27
Abstract: ABSTRACT OF THE DISCLOSURE           A method of and apparatus for directing the power of a d.c. voltage source between a three-phase mains and a d.c. circuit employ a diode bridge comprising a plurality of first diodes to rectify a three-phase mains voltage to a d.c. voltage when power is flowing from the three-phase mains to the d.c. circuit, converting the d.c. voltage to a three-phase a.c. voltage, when power is flowing from the d.c. circuit to the three-phase mains, by means of transistors in parallel with the diodes, employ control devices for controlling the transistors, form control voltages for the control means by a plurality of second diodes from the three-phase mains in such manner that each the transistor is conductive during the conduction time of the respective diode in parallel therewith, and shorten the conduction times of the transistors, in order to reduce the power circulating in the d.c. circuit, by connecting Zener diodes in series with respective ones of the transistors.
Patent CA-1341057-C (CA)
Title: Process for forming a contoured insulating sheet
Inventor: ELLIOTT GEORGE M
IPC: B31F1/00
Filed: 1987-09-01
Granted: 2000-07-25
Abstract: A rigid, contoured insulating sheet is formed by a) obtaining a flexible, substantially uniform thickness mat of loose fibers or open-cell foam, impregnated with an uncured, heat-activatable adhesive, e.g., a phenol-formaldehyde resin; b) compressing the mat betwen a pair of complementary, contoured, preheated dies that are perforated across substantially their entire contact surfaces; c) simultaneously ejecting superheated vapor, preferably steam, through the perforations in both dies, the vapor being at a pressures and temperature sufficient to heat the adhesive in the mat to its activiation temperature; and d) applying vacuuum to the mat, so as to pull ambient air therethrough, until the adhesive is substantialy set.      The process is especially useful for forming contoured, fiberglass, insulation panels for automobiles, e.g., headliner shells.
Patent CA-1302467-C (CA)
Inventor: SENFT HELMUT
IPC: F16J15/3268
Filed: 1987-09-24
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to a device for sealing shaft bearings or shaft-bearing housings as used, in particular, for self-aligning roller bearings used in rough-pressing rollers or the like, these incorporating a ring or sleeve--advantageously of stainless steel--that encircles the shaft and having at least one annular projection on the outersurface, said projection extending into at least one annular groove at least one end of the bearing housing. According to the present invention, what is involved is a bearing housing, in particular a series or production bearing housing for operating conditions that make great demands on the bearing seal, that is economical to produce.  According to the present invention, this has been achieved mainly in that the annular projection of the ring or sleeve that is installed in the housing and that surrounds the shaft with clearance that can be sealed off is fitted to the housing groove for the standard seal of series-produced bearing housings, and in that at least one, preferably two, annular recesses for shaft seal is/are provided on the inner surface, preferably on the face of the ring or sleeve.
Patent CA-1283764-C (CA)
Inventor: KOBAYASHI YOSHINORI
IPC: D04H3/16
Filed: 1987-09-28
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed are a very soft polyolefin spunbonded nonwoven fabric and its production method.  The polyolefin spunbonded nonwoven fabric according to the present invention is defined as (A) being formed of continuous polyolefin fibers having a fineness of 0.5 to 3 denier, (B) having basic weight between 30 g/m2 and 15 g/m2, and (C) having   of 2.5 g or below, wherein SMD and STD are respectively the softnesses in the machine and transverse directions as measured by a handle-O-meter.  The method of producing a strip of very soft polyolefin nonwoven fabric by directing polyolefin continuous fibers in a fixed direction, comprises the steps of: orienting the axes of the continuous fibers in the direction in which the continuous fibers are fed so as to form a web having a warp orientation factor (the maximum tensile strength in the direction in which the continuous fibers are fed, i.e., in a machine direction/the maximum tensile strength in a transverse direction) of 3.0 or above; and then applying wave-like crepes propagated in the machine direction to the web by creping the web.
Patent CA-1285807-C (CA)
Title: Tool for working a medium
Inventor: MITCHELL IAN A
IPC: A01B15/00
Filed: 1987-09-30
Granted: 1991-07-09
Abstract: ABSTRACT A soil-working tine has a recess extending along its wearing edge.  The recess captures some soil as the tine passes through the soil.   The soil captured in the recess acts as a wearing edge, reducing wear on the material of the tine.
Patent CA-1291384-C (CA)
Inventor: BEACH STANLEY H
IPC: F24C15/20
Filed: 1987-10-28
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE        A gas downdraft range is provided with an airflow system for inducing and maintaining cooling airflow, combustion airflow and exhaust airflow.          A housing defines an upwardly facing burner box and a cover overlies the housing with a downwardly formed burner pan disposed within the burner box.  The bottom wall of the burner pan is spaced above the bottom wall of the burner box to form an air space therebetween.       The burner box has cooling air inlets and coaling air outlets in communication with the air space to define a cooling airflow path.  A burner is operably disposed in the burner pan and a grill grate overlies the burner pan providing combustion air inlet and outlet ports to and from the burner pan for defining a combustion airflow path.  A plenum enclosure is connected to an exhaust air intake juxtaposed the grill grate and exhausts to atmosphere defining an exhaust airflow path.  A blower concurrently induces and maintains each of the airflows.
Patent CA-1303360-C (CA)
Title: Hydrometallurgical process for the production of beryllium
Inventor: COPENHAFER WILLIAM C
IPC: C01F3/02
Filed: 1987-11-23
Granted: 1992-06-16
Abstract: Abstract:    Beryllium is efficiently recovered from silicate ores in a hydrometallurgical, single solvent, process which avoids the complexities, high costs and hazards of pyrolytic, fluorination and acid leach methods, by contacting the ore in a closed reactor at elevated temperature and autogenous pressure with a concentrated caustics solution and lime or lime hydrate to form a slurry containing dissolved beryllium, reducing the pressure to about one atmosphere and the temperature to below the boiling point of the caustic solution, separating by-product solids to leave a pregnant leach liquor, diluting and digesting the leach liquor to precipitate the beryllium and to leave a caustic mother liquor, and separating the beryllium.  The caustic mother liquor can be recycled to the ore contacting step in a closed loop version of the process.     1329W30130Wmd
Patent CA-1325314-C (CA)
Title: Electrode assembly for cochlear implant
Inventor: KUZMA JANUSZ
IPC: A61N1/36
Filed: 1988-02-05
Granted: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE        A cochlear implant electrode assembly and a method for affixing it to a bone in the ear.  An electrode ball of unfixed turns is made from one end of each wire leading to the electronics part of the implant,  a corresponding attachment hole is drilled in the bone,  and the ball is affixed to the hole without the use of fixation devices by tapping the turns into the hole.
Patent CA-1306101-C (CA)
Title: Article and method for enclosing and protecting entombment caskets
Inventor: YEARSLEY DAVID
IPC: A61G17/00
Filed: 1988-02-26
Granted: 1992-08-11
Abstract: ABSTRACT OF THE DISCLOSURE            To overcome problems concerning storage of entombment caskets in crypts or mausoleums, particularly garden crypts, there is provided an air-tight end-capped casket-enclosing article 2 made of suitable material, such as rotation-molded polyethylene or other suitable synthetic resinous (plastic) material, alone or reinforced with suitable other fibrous material, such as fiberglass.  A check valve 30 vents the air tight space enclosed by casket enclosure 2 and end cap 14.
Patent CA-1299333-C (CA)
Inventor: NAKAJIMA YASUYOSHI
IPC: B29C45/14
Filed: 1988-04-11
Granted: 1992-04-28
Abstract: ABSTRACT OF THE DISCLOSURE      A method of integrally molding a member to be molded onto a portion of a rigid member, which method is applied to manufacture of a connecting rod used in a crank device of a wiper system in a motor vehicle, for example.  In this method of molding, a portion to be positioned is formed in the rigid member, a portion of the rigid member is inserted into a cavity for molding the member to be molded in such a manner that the portion to be positioned is exposed in the cavity, positioning members linearly movably provided in  this  cavity  are  engaged  with  this  portion  to  be positioned to effect positioning, the positioning members are  retracted  to  the outside  of  the  portion  to  be positioned after the positioning, and thereafter, a molding material is poured into the cavity to mold the member to be molded.  The rigid member has a mounting hole integrally molded therein with the resinous member to be molded, slits are provided on the inner peripheral surface of the member to be molded, and the mounting hole formed such that the inner diameters of portions of the mounting hole opposed to said slits are decreased.
Patent CA-1297711-C (CA)
Inventor: CHEYSSON FRANCOISE
IPC: G02B27/01
Filed: 1988-04-21
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE           The visor can be readily mounted on a helmet by virtue of the fact that it dispenses with the need for any optical relay system.  Provision is made for a light image generator, an optical combining and collim-ating assembly in which a holographic flat plate and a holographic spherical plate are grouped together so as to provide a view of the collimated image superimposed on the landscape.  The holographic spherical plate is employed off the axis and produces collimation in a pupil zone placed substantially at the focal distance of the apex of the spherical mirror.  The hologram of the spherical plate is recorded by means of a digital hologram in order to minimize aberrations.  The flat plate can be fairly steeply inclined with respect to the sighting axis and so designed as to reduce the ratio of parasitic reflection of the imaging channel.
Patent CA-1293816-C (CA)
Title: Memory re-mapping in a microcomputer system
Inventor: LO YUAN-CHANG
IPC: G06F11/00
Filed: 1988-04-29
Granted: 1991-12-31
Abstract: MEMORY RE-MAPPING IN A MICROCOMPUTER SYSTEM                    ABSTRACT            A  microcomputer  system  has  first,  low order address,  memory  means  soldered  to  the  planar printed circuit board and can accept further memory means pluggable into socket means on the board.  At power on self test, the memory means are tested, and, if an error is detected in the first memory means, this memory means is disabled by directing the lowest order memory addresses to the second memory  means  and  reducing  the  highest  order addresses by the number of locations in the first memory means.
Patent CA-1299187-C (CA)
Title: Polyfluoroalkoxyphosphazene composition
Inventor: KLOBUCAR WILLIAM D
IPC: C08G79/02
Filed: 1988-06-30
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE         POLYFLUOROALKOXYPHOSPHAZENE COMPOSITION     Polyfluoroalkoxyphosphazenes cured through eugenoxy groups result in elastomer compositions having higher modulus, tensile strength and elongation retention and lower compression set compared to a similar polyfluoro-alkoxyphosphazene cured through conventional ortho-allyl-phenoxy groups.
Patent CA-1306344-C (CA)
Inventor: AKIYAMA HIDEKI
IPC: A44B19/62
Filed: 1988-08-03
Granted: 1992-08-18
Abstract: ABSTRACT OF THE DISCLOSURE A slider handling apparatus has a pressure roller and a drive roller peripherally engageable therewith to transfer a slide fastener chain assembled with component parts including sliders.  A slider arresting means is operatively associated with the pressure and drive rollers for arresting sliders one at a time on the fastener chain at a predetermined point on the path of travel of the chain, the predetermined point being upstream of or in advance to the nip of the two rollers.
Patent CA-1290374-C (CA)
Title: Low voltage rejection fuse having an insulating insert
Inventor: THWAITES CLIFFORD J
IPC: H01H85/24
Filed: 1988-09-02
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE      A current limiting cartridge fuse having a portion of restricted diameter in one end cap, which serves as a rejection feature, is pro-vided with an insulating insert which cooperates with the fuse casing and the one end cap to allow an active portion of a short circuit element to be located in the restricted diameter portion of the end cap.
Patent CA-1281995-C (CA)
Inventor: HOPKINS JEFFREY A
IPC: C07B31/00
Filed: 1988-09-12
Granted: 1991-03-26
Abstract: ABSTRACT      The process of this invention is a hybrid gas separation process which recovers both heavy hydrocarbon and high purity hydrogen products from a gas stream containing a relatively low concentration of hydrogen. The heavy hydrocarbon product may consist of C2+, C3+ and/or C4+ hydrocarbons.  The light hydrocarbons and other light components, such as N2 and CO, are removed as a light fuel gas stream.  After conventional removal of any components which might freeze at low temperatures, the feed gas is combined with recycle gas from the hydrogen purifier and fed to the cryogenic unit.
Patent CA-1283588-C (CA)
Inventor: HAECKER HANS-EUGEN
IPC: D03D3/04
Filed: 1988-09-27
Granted: 1991-04-30
Abstract: ABSTRACT OF THE DISCLOSURE An auxiliary device for a seam weaving machine for joining the ends of flat-woven fabrics by a woven seam  couples  each  auxiliary  warp  thread  to  a tensioning string.  The auxiliary device includes a barbed needle  in  a  guide  sleeve  with  the barbed needle  having at  one  end  a  barb  for  seizing  an auxiliary warp thread and holding  it between the needle and the sleeve.  The needle is connected at the other end to a tensioned string.  A storage plate is provided having bores for receiving the coupling devices.
Patent CA-1337547-C (CA)
Title: Refractory metal silicide deposit process for the production of integrated circuits
Inventor: HIRASE IKUO
IPC: H01L21/285
Filed: 1988-10-18
Granted: 1995-11-14
Abstract: The process for depositing a refractory metal silicide uses vapour phase chemical deposition from the metal and silicon precursors for the production of integrated circuits. The refractory metal precursor is mixed in gaseous form with silicon subfluorides just before deposition. 
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Patent CA-1306397-C (CA)
Title: Non-reusable syringe
Inventor: VERLIER JACQUES
IPC: A61M5/31
Filed: 1988-12-21
Granted: 1992-08-18
Abstract: ABSTRACT            A non-reusable syringe is disclosed having a syringe barrel and a plunger assembly reciprocable in the barrel.   The plunger assembly comprises a plunger rod and a piston member, arranged so as to allow limited relative movement with respect to each other.   The plunger rod has a resilient blocking member capable of becoming engaged with recesses in the inside wall of the syringe barrel.   A safety member is removably arranged between the barrel  and the plunger assembly to prevent blocking of the plunger rod before use of the syringe and define a precise dose of the liquid to be injected.  The present syringe offers practically absolute guarantee against re-use and allows better and quicker clearance of the air before the injection.
Patent CA-1296397-C (CA)
Title: Automatic gain control amplifier for compensating cable loss
Inventor: IBUKURO SADAO
IPC: H03H11/04
Filed: 1988-12-23
Granted: 1992-02-25
Abstract: AUTOMATIC GAIN CONTROL AMPLIFIER FOR       COMPENSATING CABLE LOSS     ABSTRACT OF THE DISCLOSURE      An AGC amplifier for compensating a signal loss in a cable through which a signal having a frequency is passed, the signal loss being defined as a function of a square-root of the frequency, having a wide compensation ability and adaptable to the forming of a LSI circuit construction.  The AGC amplifier includes a first amplifier (10) amplifying an input signal (IN) to be compensated at a first gain (A0), a differential circuit (40) having a constant differential coefficient defined by the frequency, and differentiating the input signal at the differential coefficient, a second amplifier (20) amplifying the differentiated signal at a second gain (Al), and an adding circuit (30) adding the amplified signals therefrom to output an output signal (OUT) in which the signal loss is compensated.
Patent CA-1292984-C (CA)
Title: Blending apparatus
Inventor: CONN LEROY J
IPC: B01F27/73
Filed: 1989-01-09
Granted: 1991-12-10
Abstract: ABSTRACT    A blending apparatus has a rotor provided with louvers and mixing teeth.  The louvers have openings which vary in size and act to convey materials being cut and blended through the disc.   The mixing teeth extend from peripheral edges of the rotor.          Adjacent teeth vary in angular extension from the edges and in direction of extension from the edges.  One or more rotors may be mounted on one or more shafts to meet diverse mixing needs.            U.S.S.N. 076,853              17