baber/WOPTO huggingface dataset:
Patent CA-1315056-C (CA)
Title: Foam extrusion apparatus and method
Inventor: PAGAN RAFAEL
IPC: B29C44/50
Filed: 1988-10-28
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE A foam extrusion system and method employs a horizontal vacuum chamber (10) with a bulkhead (11) and extrusion die (16) at one end of the chamber, the extrusion die being inside the chamber when the bulkhead is closed. A liquid baffle, preferably water, is provided at the opposite end of the chamber through which the extrudate passes from the chamber to atmosphere. The baffle comprises a pond (30) of liquid having a higher level in the chamber and a lower level (31) outside the chamber. The higher level of the pond is formed between a dam plate (20) and a seal plate (12), the latter forming the opposite end of the chamber. The seal plate includes a size adjustable window (34) through which the extrudate passes, the extrudate being guided by a conveyor (43) to extend inclined downwardly into the pond and to exit through the seal plate and pond with a large radius upwardly curved section. The level of liquid in the chamber is controlled by circulating liquid (50, 51) from the higher level of the pond within the chamber to the lower level of the pond outside the chamber with the amount of liquid circulated being inversely proportional to the absolute pressure in the vacuum chamber. Optionally the circulated liquid may pass through a cooler (61) to control the liquid temperature. The size adjustment of the window or exit orifice in the seal plate may be used to control the flow of liquid from the lower level pond portion outside the chamber to the higher level pond portion inside the chamber, particularly during start up.
Patent CA-1299996-C (CA)
Title: Hand-held machine
Inventor: TANAKA KOHYA
IPC: B26B7/00
Filed: 1988-10-28
Granted: 1992-05-05
Abstract: ABSTRACT        A hand-held machine such as a cleaver equipped with an engine as the driving source wherein the drive shaft pipe is formed by telescopically extendable pipe members provided with a fixing means, and the rotational force of a driving mechanism is transmitted to the operational means via the drive shaft having a circular section, at least one one-way clutch and the drive shaft on the side of the operational means to thereby minimize the size of the device conveniently for transportation/storage, improve the work efficiency, and secure the safety of the operator.
Patent CA-1331369-C (CA)
Inventor: TERAUCHI KIYOSHI
IPC: F04B27/14
Filed: 1988-11-29
Granted: 1994-08-09
Abstract: VARIABLE DISPLACEMENT SLANT PLATE TYPE COMPRESSOR WITH THROTTLING MEANS LINKING THE         CRANKCASE AND DISCHARGE CHAMBER            ABSTRACT OF THE DISCLOSURE A slant plate type compressor including a compressor housing having a cylinder block is disclosed. A plurality of cylinders are formed around the periphery of the cylinder block and a piston is slidably fitted within each of the cylinders and is reciprocated by a drive mechanism. A crank chamber is formed between the cylinder block and a front end plate of the compressor housing. The drive mechanism includes a drive shaft rotatably supported in the compressor housing, a rotor coupled to the drive shaft and rotatable therewith, and a coupling mechanism for drivingly coupling the rotor to the pistons such that they rotary motion of the rotor is converted into recipro-cating motion of the pistons. The coupling mechanism includes a plate hav-ing a surface disposed at a slant angle relative to the drive shaft. The slant angle changes in response to a change in pressure in the crank chamber to change the capacity of the compressor. The compressor housing includes a rear end plate including suction and discharge chambers. A communication path communicates the crank chamber and the suction chamber. A valve control mechanism controls the opening and closing of the communication path to cause a change in pressure in the crank chamber. A flow control mechanism formed in the cylinder block admits reduced discharge gas pres-sure to the crank chamber from the discharge chamber to control the crank chamber pressure which controls the slant angle of the slant plate.
Patent CA-1336582-C (CA)
Inventor: HELFERICH RICHARD LEE
IPC: C04B41/53
Filed: 1988-11-30
Granted: 1995-08-08
Abstract: Disclosed   herein   is   a  foamable,  self-setting ceramic  composition  which  can  be  poured into molds or injection-molded  or  extruded  to achieve desired shapes, and  thereafter optionally fired to produce shaped, porous ceramic  articles  useful  as filter elements, insulation, kiln  furniture, molds, furnace linings, building blocks, or  other like articles, the composition containing agents capable  of  developing  an  alkali  metal aluminosilicate hydrogel   and   capable  of  generating  gas  to  produce porosity within the hydrogel bound molded shape.
Patent CA-1293769-C (CA)
Title: Interpretation de diagraphies electriques
Inventor: LESSI JACQUES
IPC: G01V3/20
Filed: 1989-01-20
Granted: 1991-12-31
Abstract: Ensemble pour déterminer à partir d'un sondage dans un milieu géologique comportant au moins une hétérogénéité, un ou plusieurs paramètres liés à une ou plusieurs caractéristiques du milieu ou de l'hétérogénéité, telle une résistivité, et au moins un paramètre dimensionnel, tel la distance entre le sondage et l'interface du milieu avec l'hétérogénéité. Cet ensemble comprend un élément de mesure qui comporte au moins un détecteur coopérant avec au moins deux détecteurs disposés sensiblement le long d'une droite, chaque détecteur présentant sur une droite une distance croissante par rapport à un émetter. Cet émetteur et des détecteurs sont montés sur un train de tiges rigide et isolant descendu au fond d'un puits dont la zone basse est sensiblement parallèle à ladite hétérogénéité.
Patent CA-1316946-C (CA)
Title: Process for the production of mono-olefins by the catalytic oxidative dehydrogenation of gaseous paraffinic hydrocarbons having two or more carbon atoms
Inventor: FONT FREIDE JOSEPHUS J H M
IPC: C07C67/00
Filed: 1989-02-09
Granted: 1993-04-27
Abstract: Case6861(2) ABSTRACT OF THE DISCLOSURE            A PROCESS FOR THE PRODUCTION OF MONO-OLEFINS BY THE CATALYTIC OXIDATIVEDEHYDROGENATION OF GASEOUS PARAFFINIC HYDROCARBONS HAVING TWO OR MORE                   CARBON ATOMS            A process for preparing mono-olefins by catalytic oxidative dehydrogenation of eg ethane, propane or butanes is provided.  The process employs a catalyst which is capable of supporting combustion beyond the normal fuel rich limit of flammability.  Preferred catalysts are platinum group metals supported on a monolith eg platinum.
Patent CA-1306774-C (CA)
Title: Circuit for generating discrimination level voltage
Inventor: KAWAI MASAAKI
IPC: H03K5/08
Filed: 1989-02-15
Granted: 1992-08-25
Abstract: CIRCUIT FOR GENERATING DISCRIMINATION LEVEL VOLTAGE     ABSTRACT OF THE DISCLOSURE       A circuit for generating a discrimination level voltage which is used as a reference voltage to discrlminate between two logic levels adjacent to each other in input signals which generally can be in a state corresponding to one of a plurality of different logic levels. The frequency at which the levels of the input signals lie in the upper half of the vicinity of the discrimination level and the frequency at which the levels of the input signals lie in the lower half of the vicinity of the discrimination level are compared, and the discrimination level is controlled so that the above two frequencies are the same.
Patent CA-1296250-C (CA)
Title: Method and apparatus for dispensing oil well proppant additive
Inventor: HARVEY ROBERT D
IPC: E21B47/10
Filed: 1989-03-22
Granted: 1992-02-25
Abstract: ABSTRACT An apparatus for dispensing an additive into a stream of well proppant includes a sealed housing containing a first chamber, a second chamber, and an additive dispenser, operable connected to a motor.  The upper chamber is adapted to contain the additive, and the lower chamber communicated with the pressurized well proppant stream.  The additive dispensing means is disposed between the upper chamber and the lower chamber. Pressure equalizing tubes within said housing extend from the upper chamber through the additive dispenser to the lower chamber to equalize the fluid pressure existing in the lower chamber with the fluid pressure existing in the upper chamber during the dispensing of the additive from the upper chamber to the lower chamber.  In the preferred embodiment the additive dispenser consists of a screw or auger disposed within an auger ring, and the additive flows through the additive dispenser to the lower chamber under the force of gravity.  Where the additive consists of radioactive sand used as a tracer for well logging purposes, the apparatus may be provided with an electrical power end control circuit to remotely control the dispensing of radioactive sand.
Patent CA-1297976-C (CA)
Title: Universal side support bracket for electrical boxes
Inventor: NATTEL WILLIAM
IPC: H02B1/26
Filed: 1989-04-07
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE       A universal support bracket attaches to the side wall of an electrical box and is adjustable to locate boxes of different depths within hollow wall structures of different depths.  The support bracket does not extend across the back of the box, or have a hook engaging a lip of the side wall, thus no part of the bracket extends over the front or back of the box.  The bracket includes an elongate strip of sheet material having end flange portions at both ends projecting substantially perpendicular from the strip, the end flange portions adapted to support the bracket against inside surfaces of the opposing wall boards;  at least one bend line across the strip such that a portion of the strip may be bent substantially perpendicular from the strip to accomodate a shallower depth of hollow wall structure, and a mounting devise on the strip for attaching the bracket to a side wall of an electrical box.
Patent CA-1332327-C (CA)
Title: Preparation of superconducting oxide films using a pre-oxygen nitrogen anneal
Inventor: ASLAM MOHAMMAD
IPC: H01B12/06
Filed: 1989-04-14
Granted: 1994-10-11
Abstract: Abstract of the Disclosure This invention is directed to a method of preparing a superconducting metal oxide film on a substrate.  More particularly, the method comprises depositing a superconducting metal oxide precursor film on the substrate and then subjecting it to annealing in a nitrogen atmosphere followed by annealing in an oxygen atmosphere, followed by rapid cooling, according to schedule wherein the time and temperature are critically defined.
Patent CA-1321228-C (CA)
Inventor: SCHNEIDER WALTER
IPC: A47B96/20
Filed: 1989-05-02
Granted: 1993-08-10
Abstract: ABSTRACT OF THE DISCLOSURE.          To protect a base body (7) of the cabinet cover made of foamed plastic material, cover sheets (4),for example of sheet aluminum, are hooked over projecting edges of the side wall   and overlapped with flaps (20) over the back wall (3) of the plastic base  body. The corners of the cover sheets are angled-off in   Z-shaped terminations (24) and connected to the base body by plastic elastic cover rails (6) connected to the base body (7) by snap-in projection-and-recess connections (12, 13; 8, 9), thereby providing a lightweight surface-protected cabinet which can be assembled simply and without requiring hand tools or assembly connectors such as screws or the like.
Patent CA-1322634-C (CA)
Title: Process for producing high density carbon and graphite articles
Inventor: MONTGOMERY LIONEL C
IPC: C04B35/64
Filed: 1989-05-02
Granted: 1993-10-05
Abstract: ABSTRACT OF THE DISCLOSURE High  strength,  high density  carbon  articles  are produced mixing finely divided carbonaceous material and pitch  binder  having  a  coking  value  of  at  least  70 percent and forming the mixture into a shaped body.  The shaped body is embedded within a  gas-permeable envelope of finely-divided, non-reactive particles.   The shaped body is compressed by applying a load upon the envelope while  simultaneously  heating  the  shaped  body.    The compression is sufficient to densify the shaped body and the heating raises  the  shaped body to a temperature sufficient to carbonize the pitch binder.
Patent CA-1331180-C (CA)
Title: Alkoxy-1, 2, 4-triazolo [1,5-c] pyrimidine-2- sulfonamides, process for their preparation and intermediates
Inventor: VAN HEERTUM JOHN C
IPC: A01N43/90
Filed: 1989-05-24
Granted: 1994-08-02
Abstract: ABSTRACT       Alkoxy substituted 1,2,4-triazolo[1,5-c]-pyrimidine-2-sulfonamides are general and selective pre- and postemergence herbicides.  These compounds are disclosed which are prepared from alkoxy substituted 1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonyl halides by condensation with substituted N-trialkylsilylanilines and by other methods.
Patent CA-1333886-C (CA)
Inventor: KENEALY DEAN R
IPC: F02M25/08
Filed: 1989-06-23
Granted: 1995-01-10
Abstract: A fuel vapor recovery canister in a motor vehicle fuel system comprises:   adsorption means for releasably absorbing fuel vapor;   an open-ended housing for the adsorption means, the housing comprising end closure means forming a fluid tight seal with an open end of the housing and having a first fluid flow port therethrough for communicating a flow of fluid into and out of the housing, and a second fluid flow port remote from the first and open to the atmosphere, wherein the first and second fluid flow ports are in communication with each other within the housing through the adsorption means;   a first barrier means within the housing for separating the adsorption means from the first fluid flow port;   second barrier means within the housing for separating the adsorption means from the second fluid flow port, the housing, first and second barrier means cooperating to contain the adsorption means; and biasing means, such as a coil spring, positioned intermediate the end closure means and the first barrier -means for biasing the barrier means toward the adsorption means to place the adsorption means in compression.
Patent CA-1313297-C (CA)
Inventor: KLANN HORST
IPC: B25B27/30
Filed: 1989-07-05
Granted: 1993-02-02
Abstract: ABSTRACT OF THE DISCLOSURE    A pressure spring tensioner comprises a cylindrical guiding tube having an axially elongated tube slot with a threaded spindle extended axially within the tube and rotatably mounted therein.          The first sleeve is affixed to the tube adjacent an end thereof and it carries a first gripping clamp which is engageable over one end of the spring.  A second sleeve assembly is slidable on the tube and it carries a second gripping clamp which engages with the opposite end of the spring.  The second sleeve assembly includes a second sleeve slidable on the guiding tube and with a sliding snug fit and having a radial recess.  A pad is arranged in the second sleeve in threaded engagement with the spindle and it has a radial finger extending through the tube  slot which is of a length no longer than twice the thickness of the guiding tube and engages in the radial recess of the second sleeve.
Patent CA-1328132-C (CA)
Inventor: POST JOSEPH A
IPC: B64C13/18
Filed: 1989-08-16
Granted: 1994-03-29
Abstract: Arrangement for controlling the Performance of Bob-Up/Bob-Down Maneuvers by a Helicopter Abstract of the Disclosure A control arrangement for use in conjunction with a flight control computer operating in response to various input signals including those received from a collective  stick to control the flight regime of a helicopter, which is operative for causing the helicopter to perform bob-up and bob-down maneuvers, includes a circuitry which generates a first control signal when the helicopter is to perform a bob-up maneuver from its instantaneous altitude to a higher altitude, stores data descriptive of at least one instantaneous altitude at the time of commencement of the first control signal; issues in response to the first control signal, an ascent command signal representative of a helicopter ascent at a maximum permissible ascent rate; generates a second control signal when the helicopter is to preform a bob-down maneuver from the higher altitude to that stored in the storing means; issues, in response to the second control signal, a descent command signal representative of a helicopter descent at a maximum permissible descent rate; and supplies the respective one of the ascent and descent command signal as an additional input signal to the flight control computer for use in controlling the flight regime of the helicopter in accordance therewith.
Patent CA-1333891-C (CA)
Inventor: GELFAND DAVID H
IPC: C12Q1/68
Filed: 1989-08-18
Granted: 1995-01-10
Abstract: A purified thermostable enzyme is obtained that has unique characteristics.   Preferably the enzyme is isolated from the Thermus aquaticus species and has a molecular weight of about 86,000-90,000 daltons.  The thermostable enzyme may be native or recombinant and may be used in a temperature-cycling chain reaction wherein at least one nucleic  acid  sequence  is  amplified  in  quantity  from  an  existing sequence   with   the   aid   of   selected   primers   and   nucleotide triphosphates.   The amplification process comprises treating separate complementary strands of the nucleic acid with a molar excess of two oligonucleotide  primers,  extending the  primers with  a thermostable enzyme to form complementary primer extension products which act as templates  for  synthesizing the  desired nucleic acid  sequence,  and detecting the sequence so amplified.  The steps of the reaction can be repeated as often as desired and involve temperature cycling to effect hybridization, promotion of activity of the enzyme, and denaturation of the hybrids formed.  The enzyme is preferably stored in a buffer of non-ionic detergents that lends stability to the enzyme.
Patent CA-1335928-C (CA)
Inventor: LESPADE PIERRE
IPC: C04B41/81
Filed: 1989-08-24
Granted: 1995-06-20
Abstract: L'invention concerne un procédé de traitement de fibres céramiques à base de silicium et de carbone, ainsi que des fibres de même nature à structure stratifiée comportant une couche extérieure de carbone. Le procédé, selon l'invention, consiste à effectuer un traitement thermique sous vide, pendant une durée d'au moins 3 heures et à une température de l'ordre de 1000.degree. C. Ce traitement permet d'obtenir des fibres entourées d'une couche de SiO2 endogène, elle-même revêtue d'une couche de carbone endogène. Ces fibres pouvant être utilisées pour la réalisation de matériaux composites à renfort fibreux.
Patent CA-1332975-C (CA)
Title: System for energy conservation on rail vehicles
Inventor: LONG ANDREW M
IPC: G07C5/00
Filed: 1989-09-28
Granted: 1994-11-08
Abstract: Apparatus and method for controlling a vehicle travelling between a start and finish point to enable that vehicle to achieve a maximum period of coasting.  There is a calculator.  A timer provides signals to the calculator representing the current time and time elapsed since commencement of travel from the start point.  A distance travelled monitor provides a signal to the calculator representing the distance travelled from the start point and a velocity measurement signal.  A store contains at least one coasting acceleration value corresponding to a plurality of velocity and position values and at least one braking acceleration value corresponding to a plurality of velocity and position values for that vehicle and values representing the predetermined time of arrival at the finish point and the distance between the start and finish point is provided.  The calculator can use the time elapsed and the distance travelled to determine the velocity of the vehicle and position of the vehicle and calculates from at least one of the corresponding coasting acceleration values and a braking acceleration value a time of arrival at the finish point if coasting were to commence at the current time.  If that time is less than the time remaining to the predetermined time of arrival the calculator operates a signal to control the vehicle to commence coasting.
Patent DK-163346-C (DK)
Inventor: PFEIFFER GOTTFRIED
IPC: C12M1/12
Filed: 1984-04-25
Granted: 1992-07-13
Abstract: A method and device is disclosed for the release and separation of substances such as parasites or parasite eggs from meat. In the method, meat is agitated with pepsin and filtered through a series of at least two filters, the last of which retains the parasites or parasite eggs. The device includes a reactor which tapers downwardly, and which has in its lower part an outlet valve connected via a conically widening part with a separator device. The separator device includes a cylindrical connecting piece which accepts holder rings for holding one or more filters or sieves in releasable connection.
Patent DK-159334-C (DK)
Inventor: FURUTSU AKIRA
IPC: F16L3/23
Filed: 1984-08-14
Granted: 1991-03-11
Abstract: In a two-fold type tying device formed of synthetic resin, guide portions 4B in the form of a projection are provided at a portion to be contacted by a rocking arm of a tying machine. This tying device is capable of preventing release of the tying device from the rocking arm or bending member upon tying the tying device by means of the tying machine 15, preferably with the aid of the guide portions 4B and guide slots 4C.
Patent FI-71085-C (FI)
Inventor: TINKELENBERG ARIE
IPC: C08L97/02
Filed: 1980-09-10
Granted: 1986-11-24
Abstract: The invention concerns the production of particle board with a very substantially lowered formaldehyde emission as well as suitable binding agents.According to the invention the binding agent used in the production of the board is a combination of a polyisocyanate with a aminoplast resin containing 0.25 to 0.625 moles of formaldehyde per mole equivalent of aminogroups. The particle boards thus obtained possess satisfactory mechanical properties and a strongly reduced formaldehyde emission.
Patent FI-75550-C (FI)
Inventor: VON DANWITZ HANS-OTTO
IPC: B66C1/18
Filed: 1983-12-05
Granted: 1988-07-11
Abstract: In a strap or tubing of woven fabric and/or plastic for fastening, lifting and transporting purposes, in particular for a round sling tubing, the strap (1) or the tubing (7) is provided with symbols (5), patterns, numbers or the like, which extend from at least one surface (6) of the strap or tubing to a space plane different therefrom.
Patent FI-86140-C (FI)
Inventor: MUELLER BERNHARD WILLI WERNER
IPC: C08B37/16
Filed: 1985-08-20
Granted: 1992-07-27
Abstract: Novel pharmaceutical compositions comprise inclusion compounds of drugs, which are instable or only sparingly soluble in water, with partially etherified  beta -cyclodextrin derivatives having hydroxyalkyl and optionally additional alkyl groups.
Patent FI-88297-C (FI)
Inventor: SCHNEIDER CLAUS
IPC: C07D277/82
Filed: 1987-06-18
Granted: 1993-04-26
Abstract: Compounds of the formula 
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 (the substituents are defined in the description) can be obtained by customary methods. The novel compounds are suitable as active substances for medicaments.