baber/WOPTO huggingface dataset:
Patent CA-1282009-C (CA)
Title: Valve system with adjustable seating force
Inventor: WILHELM PETER L
IPC: F16K31/122
Filed: 1988-04-29
Granted: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE        A steam bypass valve system for a steam turbine. The system provides a supplemental hydraulic seating force to a fast acting bypass valve after the valve plug is positioned against the valve seat with a spring force.  The system also provides for quick hydraulic relief in order to retain the fast opening characteristics of a single acting hydraulic valve.
Patent CA-1316317-C (CA)
Inventor: POOLE JON M
IPC: B22F1/145
Filed: 1988-07-07
Granted: 1993-04-20
Abstract: METHOD FOR SURFACE ACTIVATION OF WATER ATOMIZED POWDERS     ABSTRACT     A method for pickling and consolidating water atomized metallic powders to reduce surface oxides.  The technique includes introducing the powder into an acid bath - preferably nitric acid and hydrofluoric acid, rinsing the powder, introducing the powder into an alkaline bath, rinsing the powder and then consolidating the powder into a workpiece.  Alternatively, the powder can be additionally introduced into a second acid bath and/or placed into a finishing boric acid bath before consolidation.
Patent CA-1329979-C (CA)
Inventor: DERDALL GARY D
IPC: C01B25/225
Filed: 1988-07-27
Granted: 1994-06-07
Abstract: ABSTRACT OF THE DISCLOSURE This  invention  relates  to  a  method  for  the production  of  phosphoric  acid  by  acidulation  of phosphate ore and to an apparatus for carrying out the method.    The process  of  this  invention  comprises forming a slurry of a phosphate ore  in an aqueous phosphoric acid solution in each reaction zone of a multi-zone reaction system.   The reaction zones are arranged  in  such  a  manner  as  to  provide  for  the separation  of  the  ore  solids  into  two  separate fractions.    One  fraction  consists  essentially of a slurry of coarse solids and calcium phosphate in the phosphoric acid solution, with a minor portion of fine solids.  The other fraction consists essentially of a slurry of  fine solids and calcium phosphate in the phosphoric  acid  solution,  with  a  minor  portion  of coarse solids.  Thus, the coarse solids and fine solids are processed essentially separately such that each can be treated under conditions which are optimum for their individual characteristics.
Patent CA-1308760-C (CA)
Title: Modular utility cart including improved structures for securing intermediate and top shelves to corner posts
Inventor: COHN ROBERT J
IPC: A47B31/00
Filed: 1988-07-28
Granted: 1992-10-13
Abstract: MODULAR UTILITY CART INCLUDING IMPROVED STRUCTURES FOR SECURING INTERMEDIATE         AND TOP SHELVES TO CORNER POSTS               ABSTRACT OF THE DISCLOSURE          A modular utility cart includes four corner posts, at least one intermediate shelf and a top shelf.  The cart incorporates improved structures for securing the intermediate and top shelves to the posts.  Specifically, each intermediate shelf is formed with four open collars each for embracing one post.  Each collar has a cross-section substantially congruent to the cross-section of the associated post, and has an upper right tubular portion embracing the post, a lower tubular portion having a downwardly outwardly inclined inner surface, and a transition portion between the upper and lower portions. The top shelf, which is mountable in the region of the tops of the posts, is formed with four blind tubular collars, each having a downwardly outwardly inclined inner surface and an inwardly projecting retaining flange at the bottom edge of the surface.  Four sleeves are provided for each intermediate shelf and for the top shelf and each includes upper and lower edges, a right tubular inner surface for closely embracing a post, and a downwardly outwardly inclined outward surface matable with the inner surface of either the open collar or the blind collar. Thus, downward movement of each intermediate shelf causes each open collar to move downwardly over an associated sleeve so that the outer surface of the sleeve mates with the inner surface of the open collar to compress the sleeve toward the associated post.  Downward movement of the open collar is limited by abutment of its transition.     portion with the top edge of the sleeve.  Similarly, downward movement of the top shelf causes the retaining flange of the blind collar to override the outer surface of a sleeve until the outer surface of the sleeve and the inner surface of the blind collar mate with the flange underlining the bottom edge of the sleeve.  In this way, the sleeve is inwardly compressed against the post and upward movement of the top shelf is resisted by engagement of the retaining flange on the bottom edge of that sleeve.
Patent CA-1323509-C (CA)
Inventor: YOUNG DONALD C
IPC: G01H17/00
Filed: 1988-08-26
Granted: 1993-10-26
Abstract: ABSTRACT OF THE DISCLOSURE      A device for measuring fluid density, the device comprising a silicon substrate having a micro-engineered cantilevered beam fabricated on it for use as a density sensor.  The beam is at the end of a tube and has a contact manufactured on its end and a contact manufactured on the substrate below the contact. Means (not shown) for causing said structure to vibrate and for detecting a characteristic of the vibration are provided, the characteristic being dependent on the density of the fluid to be measured.
Patent CA-1339522-C (CA)
Inventor: DANIEL PIERRE MARY BERNARD
IPC: G02C5/14
Filed: 1988-08-24
Granted: 1997-11-04
Abstract: The device consists of an elongated sheath (10) welded along three of its sides and having an opening defined by the edges (20, 22) enabling a side-piece (24) of the spectacles to be introduced. The sheath (10) preferably covers the side-piece of the spectacles, so as to allow some play, over its whole length up to the frame (26). Application to the protection of side-pieces of spectacles while having a hairdo at the hairdresser's. <IMAGE>
Patent CA-1286425-C (CA)
Inventor: LUCAS JOHN M
IPC: G01N23/06
Filed: 1988-09-09
Granted: 1991-07-16
Abstract: Abstract of the Disclosure:     A cable insulation eccentricity and diameter monitor comprises a revolving structure mounted coaxially with the cable, a finely collimated source of gamma particles mounted on such revolving structure for generating a beam of gamma particles, a radiation detector fixed to the revolving structure for detecting the gamma particles scattered from such beam by the cable and for generating pulses the amplitude of which is dependent on the energy of the scattered gamma particles reaching the detector, first drive means for moving the source of gamma particles relative to the revolving structure so as to direct the beam at a first set of predetermined target positions corresponding to probable conductor and cable/atmosphere boundaries of the cable in a plane substantially normal to the axis of the cable, second drive means for repositioning the revolving structure to move the source of gamma particles and the radiation detector to a position around the cable which is at a predetermined angle with respect to their original position so as to direct the beam at a second set of target positions corresponding to probable conductor and cable/atmosphere boundaries, a pulse height analyser responsive to the detector for detecting and counting the pulses produced by the detector within a preset range of pulse height, and a computer responsive to the output of the pulse height analyser and to test data stored in its memory for operating the first and second drive means to find the actual location of such boundaries and for computing insulation eccentricity and diameter of the cable from such findings.
Patent CA-1321076-C (CA)
Title: Procede de recuperation de gallium par extraction liquide-liquide
Inventor: SABOT JEAN-LOUIS
IPC: C01F7/47
Filed: 1988-09-20
Granted: 1993-08-10
Abstract: L'invention concerne un procédé de récupération de gallium par extraction liquide-liquide, dans lequel le gallium contenu dans une solution basique d'aluminate de sodium (liqueur de Bayer) est soumis à une extraction liquide-liquide au moyen d'un agent extractant solubilisé dans un solvant organique. La phase organique qui est obtenue et contient le gallium, est alors soumise à une seconde extraction liquide-liquide au moyen d'une solution acide concentrée pour extraire simultanément les espèces gallium, aluminium, sodium. Selon l'invention, cette solution acide contenant le gallium est traitée par un agent extractant pour en extraire le gallium, puis recyclée au moins partiellement dans la zone de seconde extraction pour diminuer la consommation en acide du procédé.
Patent CA-1316373-C (CA)
Title: Gear box assembly
Inventor: HARROD LAWRENCE R
IPC: F16H57/021
Filed: 1988-09-26
Granted: 1993-04-20
Abstract: Abstract of the Disclosure A toy vehicle transmission assembly unit having a drive gear that is nonrotatably mounted on a driven axle, and a multiple gear train that establishes a driving connection between the drive gear and a driving gear mounted on a shaft outwardly extending from a motor.  The gear of the multiple gear train that immediately establishes the driving connection with the drive gear is shifted laterally by a shift lever that disengages the gear train from the drive gear.  The transmission assembly unit is enclosed in a housing that provides a rotatable mounting for the drive gear.
Patent CA-1321964-C (CA)
Title: Method for culturing pearls
Inventor: LEE DOSUK
IPC: C12N5/00
Filed: 1988-09-27
Granted: 1993-09-07
Abstract: ABSTRACT OF THE DISCLOSURE         Nacre coating of a biocompatible nucleating substrate is achieved by contacting such substrate with mantle tissue explant from a mollusca species under cellular growth promoting conditions.  Salt containing media are employed with variations as to the other additives, which may include a source of a steroid material, a source of amino acids, a source of metabolizable energy, or other components.  After incubation for sufficient time, nacre coated substrates are formed.  By appropriate choice of the nucleus, pearls can be produced.
Patent CA-1335877-C (CA)
Title: Apparatus and method for testing a well
Inventor: IDLAND KAARE
IPC: E21B33/124
Filed: 1988-09-30
Granted: 1995-06-13
Abstract: In general, pumps for use in oil wells are complicated structures which are difficult to produce and/or install.  A simple pump, which can readily be incorporated in a well string includes a tubular barrel, a bottom sub carrying a fixed valve on the lower end of the barrel, an internally splined sleeve on the supper end of the barrel, and a splined plunger carrying a second, moving valve slidable in the sleeve and barrel.  Reciprocation of the plunger causes alternate simultaneous opening of the bottom valve and closing of the top valve, and closing of the bottom valve and opening of the top valve to pump fluids up the well string.  The valves are structurally similar and each contains two valves for a tight seal and efficient operation.
Patent CA-1331177-C (CA)
Title: 3-oxo-1,2,4-triazolo[4,3-a]pyrimidine-6-carboxylic acid esters
Inventor: ATWAL KARNAIL
IPC: A61P9/06
Filed: 1988-11-01
Granted: 1994-08-02
Abstract: 3-OXO-1,2,4-TRIAZOLO[4,3-a]PYRIMIDINE-6-CARBOXYLIC ACID ESTERS Abstract Compounds having the formula and pharmaceutically acceptable salts thereof, wherein R4 is aryl are disclosed. These novel compounds are useful, for example, as cardio-vascular agents.
Patent CA-1320428-C (CA)
Title: Process and apparatus for freeze-drying comprising means forming an active thermal shield between the freeze-drying shelves
Inventor: GIMENO RENE
IPC: F26B5/06
Filed: 1988-11-16
Granted: 1993-07-20
Abstract: IN THE   CANADIAN     PATENT & TRADEMARK OFFICE            PATENT APPLICATION entitled: Process and apparatus for freeze-drying comprising means forming an active thermal shield between the freeze-drying shelves in the names of: René GIMENO                  Alain HUC Pierre DEVICTOR  Assignee :       BIOETICA               ABSTRACT OF THE DISCLOSURE      This invention relates to a process and appara-tus  for  freeze-drying,   said  apparatus  comprising freeze-drying shelves disposed inside a freeze-drying enclosure,  on which may be placed products or solu-tions  to  be  freeze-dried,  which may  be  contained in open recipients, as well as cooling and/or heating means associated  with  and  preferably  incorporated in  said  shelves,  wherein  means  forming  a  thermal shield are disposed between said freeze-drying shelves,  thus  making  it  possible  to  slow down  the heat  exchanges  between  the  surface  of  the  product to  be  freeze-dried  and  the  heating  and/or  cooling elements associated with the shelves. More homogeneous freeze-dried products are obtained in this way.
Patent CA-1311828-C (CA)
Title: Positive sequence distance relay for ac power transmission line protection
Inventor: WILKINSON STANLEY B
IPC: H02H3/38
Filed: 1988-11-17
Granted: 1992-12-22
Abstract: THE POSITIVE SEQUENCE DISTANCE RELAY FOR AC POWER TRANSMISSION LINE PROTECTION                     ABSTRACT OF THE DISCLOSURE          A protective relay for detecting faults within a predetermined protected zone of a three phase alternating current electrical power distribution system generates a polarizing signal VPOL which includes a signal V1 related to a positive sequence component of a phase voltage of the three phase power distribution system.  A signal I1ZR, which is a signal related to a positive sequence component of a phase current of the three phase power distribution system multiplied by a replica impedance of the protected zone of the three phase power distribution system, is also generated.  The coincidence of the VPOL and I1ZR signals are compared and an operate signal is generated as a result of positive coincidence.  A first restraint signal is generated as a result of negative coincidence.  A second restraint signal related to V1 is also generated.  A net operating signal is generated when the magnitude of the operate signal exceeds the sum of the magnitudes of the first restraint signal and the second restraint signal.
Patent CA-1334661-C (CA)
Inventor: HENRIKSEN LEIF D
IPC: F04C/
Filed: 1988-12-19
Granted: 1995-03-07
Abstract: The present invention relates to an arrangement for a compressor with oscillating piston wings.  The arrangement has a series of mutually angularly displaced discharge slots arranged in a radially extending end wall between a working chamber of the machine and an oppositely disposed discharge chamber.  The discharge slots are covered over by valve members of a resilient nature.  The valve members may be inserted in the end wall with an end groove inn a recessed manner to engage a valve seat about each slot.
Patent CA-1337822-C (CA)
Inventor: WALES R LANGDON
IPC: B65H75/24
Filed: 1988-12-21
Granted: 1995-12-26
Abstract: A machine for feeding rolls of web material to a utilization device that is adapted to draw the web material into the utilization device.  The roll machine includes a frame carrying a carriage that supports a pair of arms having respective chucks that are adapted to move toward and away from each other for engaging and disengaging with the core of a roll that is being supported and fed.  An overhead drive arrangement is used for driving the periphery of the roll in combination with a torque roller for maintaining tension in the web.  A gravity loop of the material has its position sensed for control of the roll drive means in a manner to match the rate of use by the utilization device.
Patent CA-1307079-C (CA)
Title: Partition, more particularly for a corner shower
Inventor: BAUS HEINZ G
IPC: E05D15/06
Filed: 1989-01-09
Granted: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE          A partition,  more particularly for a corner shower, contains two door-elements mounted displaceably in an upper guide-rail.  In the vicinity of the entrance,  the upper guide-rail is curved like the edge of the tub and is connected to two lateral wall elements which are secured to the room and are flat.  The purpose of the invention is to achieve reliable sealing and equally reliable guidance combined with a simple design.  It is proposed that the guide-rail be curved over its entire length and comprise curved end-parts behind the flat wall-element.  No lower guide-rail is provided.   Instead,  small narrow guide-elements are located outside the entrance.
Patent CA-1311776-C (CA)
Title: Logging trailer
Inventor: SJOSTROM HAROLD
IPC: B60P3/41
Filed: 1989-05-01
Granted: 1992-12-22
Abstract: ABSTRACT OF THE DISCLOSURE     An extended trailer to attach to a tractor.  The trailer has a main reach able to attach to a tractor.  An extension reach extends slidable of the main reach.  A bridge over the main reach is rigidly attached to the main reach.  There is a forward self steering axle for the extended trailer.  Springs extend forward from the bridge to the forward axle.  The extension has an intermediate axle and rear axles.  A subframe carries the intermediate and rear axles and is pivotally attached to the bridge.
Patent CA-1335646-C (CA)
Inventor: VAN DEN BROM GUIDO C
IPC: C11D1/52
Filed: 1989-06-07
Granted: 1995-05-23
Abstract: p An aqueous liquid detergent composition comprising soap and inorganic builder, the weight ratio of the soap relative to the inorganic builder being at least 1:2.75, the composition containing more than 5% by weight of soap, the composition further comprising electrolyte in a quantity sufficient to cause formation of a lamellar phase having solid suspending capability, said composition yielding no more than 2% by volume phase separation after storage for 21 days at 25°C.
Patent CA-1292305-C (CA)
Title: Hydroacoustic sonar equipment
Inventor: PATRICK PAUL H
IPC: G01S7/527
Filed: 1989-06-14
Granted: 1991-11-19
Abstract: ABSTRACT            The invention relates to a hydroacoustic sonar system in which received signals are processed without extensive filtering thereby to conserve higher fourier components of the received signals and so conserve useful information of targets.  This is achieved by using a wideband detector module to effect demodulation of the received signals, and so eliminating the usual intermediate frequency stage.          The module comprises a wideband input amplifier, a wideband full wave detector and an active low pass filter having a cut off frequency of at least 50 kHz.
Patent CA-1338334-C (CA)
Title: Propylene isoblock polymer and process for its manufacture
Inventor: DOLLE VOLKER
IPC: C08F10/06
Filed: 1989-07-28
Granted: 1996-05-14
Abstract: Propylene isoblock polymers with 0.5 to 10 mol%, based on the total polymer, of randomly distributed ethylene units and with a narrow molecular weight distribution are ob-tained when propylene is polymerized using a catalyst consisting of a chiral metallocene, containing bridges, of formula I:                     (I) and an aluminoxane.  The polymers have rubber-like properties.
Patent CA-1329354-C (CA)
Inventor: EISTRAT THOMAS
IPC: B27B17/00
Filed: 1989-09-07
Granted: 1994-05-10
Abstract: ABSTRACT OF THE DISCLOSURE Safely guides wood into the tip of a chain saw bar and provides stability (you don't have to wave the tip of the saw around before you start cutting at the tip), gives support and dampening of vibration and sound, eliminates rotational kickback the greatest hazard in using the world's most dangerous tool, can be attachable and removable from a saw bar, or a permanent part of the saw bar.          Makes a chain saw an additional tool for tree-trimmers, loggers, homeowners in addition to sawing. With device on saw you can push or pull wood from a tangle up pile and safely position it for cutting.  Device eliminates cutting in unsteady positions (off-balance, outstretched arms, one-handed,over-reaching).          Chain saw with the device provides dynamic tuning to lessen vibration and sound.  There is less chain wear, less sharpening, less bar wear, less fatigue, less chance of Raynaud's syndrome, no need for a chain brake to stop rotational kickback, no need for a banana type bar.
Patent CA-1324549-C (CA)
Inventor: GREEN DAVID T
IPC: A61B17/04
Filed: 1992-07-15
Granted: 1993-11-23
Abstract: ABSTRACT OF THE DISCLOSURE           The two-part surgical fastener is composed of an annular stapling part having projecting prongs and annular retaining board having  an  annular gap which receives the prongs.  Barbs on the prongs serve to abut against a retaining ring on the retaining part to maintain a  fixed  relationship between the parts  for  stapling purposes.   Said surgical fastener may be mounted on an anvil assembly on which the retaining part of the fastener is mounted as fingers which can be collapsed radially inwardly after stapling to permit ease of removal.
Patent DK-154708-C (DK)
Inventor: MICHALIK KAJETAN
IPC: E02D31/02
Filed: 1982-09-17
Granted: 1989-05-29
Abstract: The insulating element is intended for use in external wall claddings of underground storeys or basements and comprises a plate formed from non-biodegradable and foamed plastic. Besides having a heat-insulating effect, the plate also assumes a draining function. In order to provide for this, the plate body 1, on the side facing the wall, has drainage recesses in the form of vertical grooves 2. The openings 3 of the drainage recesses and grooves 2 respectively are shielded in a liquid-permeable manner with a filter strip 6 made of non- woven fabric. The plate body 1 consists of extruded foamed plastic without plastic particle interspaces. <IMAGE>
Patent FI-64529-C (FI)
Inventor: KUEHLE ENGELBERT
IPC: B27K3/38
Filed: 1979-10-10
Granted: 1983-12-12
Abstract: N,N-dimethyl-N'-p-tolyl-N'-dichlorofluoromethylthio-sulphamide and its use as an anti-fungal agent especially in preventing fungi damage to wood.
Patent FI-78285-C (FI)
Inventor: GALER RICHARD EUGENE
IPC: C04B28/14
Filed: 1985-07-16
Granted: 1989-07-10
Abstract: An ettringite-producing hydraulic cement especially adapted to the high speed production of carbon dioxide resistant cement board produces essentially all of its potential ettringite within about 20 minutes after it is mixed with water. The cement is non-expansive and sets within about 25 minutes at a temperature of from about 65°F to about 150°F.
Patent FI-93457-C (FI)
Inventor: BASTART JEAN-PIERRE
IPC: C07D498/14
Filed: 1990-12-04
Granted: 1995-04-10
Abstract: Process for the preparation of synergistin derivatives of general formula (I) in which Y is hydrogen or dimethylamino from pristinamycin IA or from virginiamycin, via a Mannich base, and then elimination of the introduced amine. <IMAGE>
Patent NL-67533-C (NL)
IPC: G03F1/54
Abstract: 676,834. Hydraulic brakes. FIAT SOC. PER AZIONI, and BALDWIN, P. S. May 3, 1950 [May 4, 1949; April 21, 1950], No. 10925/50. Class 103 (i). In a master cylinder for hydraulic brakes, when the pressure is being supplied to the brake cylinders through connection 2, the connection 3 to the reservoir is sealed off by means of freely floating valve elements 4, 5, 6 located between the end of the cylinder and a stopring 9, which may be a spring ring of annular form. In the construction shown in Fig. 3, the valve element 4 is an elastic ring of smaller diameter than the cylinder bore, the ring 5 a metallic spacer element, and element 6 an elastic sealing ring having a convex outer surface of maximum diameter normally slightly greater than the cylinder bore. Located between element 4 and the stop-ring 9 is a cup-like thrustmember 16 having in its end a reduced bore of such size that when the piston 12 is operated to apply the brakes the resistance of the fluid to flow through the bore is such that the member 16 is moved and compresses the elements 4, 5, 6 sufficiently to seal off the reservoir connection 3. In Fig. 5 there is a plunger shaft 17 of smaller diameter than the cylinder bore and the thrust member is in the form of an axially-bored piston 25. Fig. 7 shows a similar arrangement with a normal size piston 12 and in both Figs. 5 and 7 the pressure-fluid passes out of the brake cylinder connection 2 without having to pass through the restriction in the thrust member.