baber/WOPTO huggingface dataset:
Patent CA-2079978-A1 (CA)
Title: Procede de traitement pour deposer une couche de carbone en phase vapeur sur la surface d'une piece metallique et piece ainsi obtenue
Inventor: CELLIER FRANCOIS
IPC: C23C16/26
Filed: 1992-10-06
Abstract: Société dite : NITRUVID Procédé de traitement pour déposer une couche de carbone en phase vapeur sur la surface d'une pièce métallique et pièce ainsi obtenue. DU CONTENU TECHNIQUE DE L'INVENTION Le procédé en vue de conférer à la pièce traitée une résistance à l'usure par frottement, une résistance à la corrosion, ainsi qu'une coloration, est caractérisé selon l'invention en ce qu'on soumet la surface de la pièce à un traitement thermochimique préalable sous plasma électrique dans une enceinte sous atmosphère contenant des espèces réactives telles que N2, et de l'hydrogène, les espèces réactives diffusant et précipitant dans la matrice métallique de la pièce pour former une sous-couche de diffusion et qu'on dépose sur la surface ainsi traitée une couche de carbone en phase vapeur sous plasma électrique, dans la même enceinte, en modifiant graduellement la composition de l'atmosphère du traitement préalable, d'une part par introduction d'un hydrocarbure et/ou d'un silane à l'état gazeux et d'autre part par réduction progressive des pressions par-tielles des espèces réactives utilisées lors du traitement préalable, et le maintien de l'atmosphère d'hydrocarbure pour le dépôt de carbone. Métallurgie. Fig. Néant.
Patent CA-2083371-A1 (CA)
Inventor: SMURKOSKI JOHN A
IPC: B29C43/22
Filed: 1991-06-14
Abstract: A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits whic extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by casting a photosensitive resinous material over and through the reinforcing structure while the reinforcing structure travels over a textured surface, and then expos-ing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions. A process for making paper products is also disclosed which involves applying a fluid pressure differential from a vacu-um source through the belt to a partially-formed embryonic web of papermaking fibers. The fibers in the embryonic web are def-lected into the conduits of the papermaking belt by the vacuum pressure while the papermaking belt and the embryonic web travel over the vacuum source. Following the deflection, the paper web is impressed with the paper side network of the belt, and dried to form the final product.
Patent CA-2083916-A1 (CA)
Title: Method and arrangement for finely-grinding minerals
Inventor: SVENSSON ULF K
IPC: B02C17/16
Filed: 1992-11-26
Abstract: ABSTRACT            The invention relates to a method for finely grinding minerals and similar materials in an essentially dry state to particle sizes at which the ground material can be used as a filler. The method is characterized by effecting at least the final grinding phase in a closed grinding cavity that has been placed under a sub-pres-sure. The pressure in the grinding space shall preferably be lower than the prevailing ambient pressure by up to about 10 kPa.            The invention also relates to a mill having a grinding cavity that can be placed under a sub-pressure.
Patent CA-2084390-A1 (CA)
Inventor: SCHANTZ CHRISTOPHER A
IPC: B41J2/155
Filed: 1992-12-02
Abstract: In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form tapered inkjet orifices. The nozzle member is then mounted to a substrate containing heating elements, each heating element being associated with a single orifice. In a preferred method, the orifices are formed by Excimer laser ablation.       In other aspects of the invention, vaporization chambers as well as ink channels, providing fluid communication between an ink reservoir and the orifices, are also formed by Excimer laser ablation.
Patent CA-2088770-A1 (CA)
Title: Multiplex addressing of ferro-electric liquid crystal displays
Inventor: HUGHES JONATHAN R
IPC: G02F1/133
Filed: 1991-07-26
Abstract: A ferro-electric liquid crystal cell is addressed by row and column electrodes forming an x,y matrix of display elements. A strobe waveform is applied to each row in sequence whilst appropriate data waveforms are applied to all the column electrodes. At each display element the material receives an addressing waveform to switch it to one of its two switched states depending up-on the polarity of the addressing waveform. The switching characteristics of ferro-electric materials depend upon the shape of the addressing waveform. Two different shapes of addressing waveforms are used to produce two different and separated switching characteristics (Fig. 3). Al least one switching characteristic curve may exhibit a minimum response time at one voltage value, and the display is operated at voltages above this. The data waveforms are alternating positive and negative pulses of period 2ts. The strobe waveform has a zero for one time period is followed by a unipolar voltage pulse of duration greater than ts, e.g. 1.5ts or more. This results in an overlapping of addressing in adjacent rows, i.e. the end of a strobe pulse on one row overlaps with the beginning of a strobe pulse on the next row. The display elements may be switched into one of their two states by one of two strobe pulses of opposite polarity. Alternatively a blanking pulse may switch all elements to one state and a strobe used to switch selected elements to the other state.
Patent CA-2092382-A1 (CA)
Title: Multi-cartridge shooting gun device
Inventor: KAN CHUN-CHIEN
IPC: F41B7/00
Filed: 1993-03-24
Abstract: ABSTRACT OF THE DISCLOSURE     A multi-cartridge shooting gun device includes a magazine, wherwin the center of the magazine having an engaging hole rotatably mounted onto the supporting shaft of the gun housing. The magazine has a multiple magazine holes formedaround the engaging hole. The cartridges respectively inserted in each magazine hole and multiple springs respectively mounted between the cartridge and the magazine and compressed therebetween. With one of cartridges in the magazine hammered by the trigger and released by the spring, the cartridge can be shot against the target with the help of resilience given from the spring.
Patent CA-2092826-A1 (CA)
Title: Process for the spray-drying of useful materials and mixtures thereof using superheated steam
Inventor: RAEHSE WILFRIED
IPC: B01D1/18
Filed: 1991-09-20
Abstract: The description relates to a process for obtaining finely divided solid pourable valuable susbtances or mixtures thereof which are suitable for wetting, washing and/or cleaning agents and/or for use in such agents from their aqueous preparations by spray-drying in a stream of hot gas in the region of normal pressure. In the process of the invention, the stream of hot gas is superheat water vapour and the drying of the particulate substance is interrupted before the substance is endangered by the effects of heat, whereby where necessary the pourablility during storage of the thus partly dried substance is ensured by the admixture of such additives as are capable of bonding limited quantities of water and/or a post-treatment is used to homogenise the residual moisture in the particulate substance and/or the substance is post dried in conditions preserving the valuable substance. The process of the invention is especially suitable for the production of pourable solid tensides, particularly anionic tensides based on natural substances which may also be in admixture with soluble or insoluble organic salts to ensure pourability and/or the apparent weight. A  further preferred field of use is the introduction of this process for the production of dried valuable silicate-based substances which may be used especially in textile washing agents, whereby the obtaining of dry zoelite-NaA of washing agent quality is a typical example. With the process of the invention it is finally possible advantageously to obtain ordinary textile washing agent spray dried powders, the temperature-sensitive and/or water-vapour volatile components of which can be added to make the final textile washing agent.
Patent CA-2093666-A1 (CA)
Inventor: MUENCH ULRICH
IPC: A61K9/14
Filed: 1991-10-07
Abstract: On divulgue une préparation pharmaceutique qui comprend une matière granulaire sans solvant à matière fondue refroidie contenant au moins un ingrédient actif fusible et au moins un adjuvant fusible. La préparation peut être utilisée pour toutes les formes médicamenteuses revendiquées et dans le traitement des maladies.
Patent CA-2093901-A1 (CA)
Inventor: CHANG DANE
IPC: B01D53/60
Filed: 1992-08-12
Abstract: 2093901 9303825 PCTABS00020 The simultaneous abatement of NO and SO2 in flue gas is provided by an absorption process and apparatus utilizing an absorbent composition comprising an aqueous solution of chelates and sulfite salt for NO abatement and amine SO2 absorbents such as piperazinones, morpholinones, piperidines, piperazines, piperazinediones, hydantoins, triazinones, pyrimidinones, oxazolidones, etc.  for SO2 abatement. SO2 is thermally stripped from the spent absorbent and recovered. Metal chelates oxidized to an inactive state as a side-reaction are electrochemically reduced. An anionic exchange membrane in the electrochemical cell regenerates heat stable amine salt byproducts to be converted back to useable amine sorbent, and facilitates removal from the absorbent solution of other waste salts.
Patent CA-2094355-A1 (CA)
Inventor: COTE GILLES
IPC: H03L7/00
Filed: 1993-04-19
Abstract: 14 PROCEDE ET DISPOSITIF DE COMPENSATION DES INSTABILITES DE PHASE DE L'ONDE AMPLIFIEE PAR UN TUBE HYPERFREQUENCE La variation de tension entre les électrodes du tube d'un amplificateur hyperfréquence (1) provoquant un déphasage de l'onde de sortie de l'amplificateur hyperfréquence (1), le procédé selon l'invention consiste à créer un déphasage de l'onde entrant dans le tube de l'amplificateur hyperfréquence (1) sensiblement proportionnel à la variation de tension et de sens opposé au déphasage de l'onde de sortie créé par cette variation de tension. Application: émetteurs à tube hyperfréquence. Figure 3.
Patent CA-2096367-A1 (CA)
Title: A method of manufacturing aluminum alloy sheet
Inventor: WYATT-MAIR GAVIN F
IPC: B21B3/00
Filed: 1993-05-17
Abstract: A method for manufacturing aluminum sheet stock which includes hot rolling an aluminum alloy sheet stock, annealing and solution heat treating it without substantial intermediate cooling and rapid quenching.
Patent CA-2096385-A1 (CA)
Title: Enhanced durability sputtered front surface mirror
Inventor: ENGEL TIMOTHY C
IPC: C23C14/06
Filed: 1993-05-17
Abstract: A durable sputtered front surface mirror comprises a substrate; a reflective aluminum coating formed on one side of the substrate; a silicon oxide coating formed on the aluminum; a titanium oxide coating formed on the silicon oxide; and a thin overcoat formed on the titanium oxide coating. The overcoat is formed using sputter deposition conditions for depositing silicon oxide, silicon nitride, and/or silicon oxynitride, and is formed using process parameters that can be expected to form a very thin coating, which will not degrade the optical qualities of the mirror. Conventional wisdom within the industry is that a coating that is sufficiently thin to preclude optical degradation would be too thin to enhance the surface durability of the titanium oxide outer coating. Surprisingly, I have found that the very thin overcoating results in a very substantial increase in surface durability, typically from less than 20 strokes to more that 10,000 strokes using the military standard, surface durability cheesecloth rub test. My approach is applicable to other optical devices which require durability.
Patent CA-2098413-A1 (CA)
Title: Artificial reef module and method
Inventor: MOSTKOFF BENJAMIN J
IPC: E02B3/12
Filed: 1993-06-15
Abstract: ABSTRACT OF THE DISCLOSURE    An essentially equilateral tetrahedron having essentially four equilateral  sides,  each of which,  in turn,  is an equilateral triangle is disclosed.  The reef module may be any size, but for practical purposes in excess of one foot on an edge,  and not necessarily exceeding six feet on an edge by a significant amount.          The medium primarily employed to hold the implanted tire chips in place is cement, or its equivalent.  Desirably a hydraulic cement is employed because of its high strength capability as well as durability.  A related aspect of the present invention looks to the provision of lifting means on each such equilateral tetrahedron to permit the same, with relatively crude equipment, to be moved about in a factory site, on to trucks, on to barges, and off the barge to its ultimate resting place at the bottom of the sea.   In connection with the method of forming the modules, an open-ended three-sided mold is formed in the shape of a tetrahedron with the open end up.  It is filled with approximately half the weight of tire chips that the mold is capable of holding with the resulting void being concrete.  The proportions are not necessarily critical to the invention but exemplary of the mix and the result which can be obtained, namely, with an exemplary tetrahedron three feet on each edge, approximately five and three eights tires in the form of tire chips can be encased and permanently dispatched to the bottom of the sea, ocean, bay, lake or any other body of water.
Patent CA-2099609-A1 (CA)
Title: Quinobenzoxazine, quinobenzothiazine, and pyrido-acridine antineoplastic agents
Inventor: CHU DANIEL T
IPC: C07D513/06
Filed: 1991-08-23
Abstract: Quinobenzoxazine, quinobenzothiazines, and pyrido-acridine derivatives of formula (I), as well as the pharmaceutically acceptable salts, esters, amides and prodrugs thereof are disclosed, wherein R1 is hydrogen or a carboxy-protecting group, R2 and R3 are substituents, A is oxygen, sulfur, or carbon, Z is a halogen or a nitrogen-containing group, X is hydrogen, halogen or alkyl, and W is hydrogen, alkyl, amino or halogen. The compounds have potent antineoplastic activity.
Patent CA-2100370-A1 (CA)
Title: Truss for inguinal hernia
Inventor: BIEK GEORGE
IPC: A61F5/24
Filed: 1993-07-13
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention relates to an apparatus for exerting the same pressure on the hernia, outside the abdominal cavity, as that inside the abdominal cavity.  The apparatus is a truss including a harness formed of two belts, a pouch and a metal plate contained in the pouch which is large enough to rest on the strong abdominal muscles outside of the herniated area and which is bent to contour to the abdomen.
Patent CA-2100675-A1 (CA)
Title: Silica supported transition metal catalyst
Inventor: KOLTHAMMER BRIAN W S
IPC: C08F4/64
Filed: 1991-12-18
Abstract: A transition metal containing catalyst useful for the polymerization of a-olefins is prepared by (A) forming in an inert at-mosphere which excludes oxygen and moisture a slurry of (1) a porous inorganic oxide support material selected from the group consisting of silica, alumina, or a combination of silica and alumina, said support material containing not greater than 5 milli-moles of hydroxyl groups per gram of support material and a particle size not greater than 10 microns and a surface area of from 50 to 800 m2/g in an inert organic liquid medium; (B) mixing said slurry with (2) an organomagnesium compound and stir-ring the resultant mixture at a temperature of from -20°C to 120°C for a time sufficient to saturate the surface of the sup-port material; (C) mixing the product from (B) with (3) a titanium compound or a combination of a titanium compound and (4) a vanadium compound and stirring the resultant mixture at a temperature of from -20° C to 120° C for a time sufficient to allow complete reaction of the titanium compound and the vanadium compound with the organomagnesium moieties re-mained on the solid support; (D) mixing the product from (C) with an inert organic solution of (5) a Group IIIA metal alkyl halide at a temperature of from -20°C to 120°C far a time sufficient to complete the reduction of the titanium and vanadi-um, if present, compounds to their final oxidation state.
Patent CA-2102427-A1 (CA)
Title: Fraisage en bout adiabatique
Inventor: TURCHAN MANUEL C
IPC: B23P15/28
Filed: 1993-04-23
Abstract: Machine à fraiser à surface adiabatique ultra rapide dont la configuration et le fonctionnement donnent un procédé d'usinage très efficace dans des conditions de fabrication industrielle. La machine à fraiser fonctionne de préférence à des vitesses périphériques d'environ 15 000 pieds par minute et à des rendements de 7 pouces cubes par minute par horse power. L'opération de fraisage privilégiée est réalisée sans liquide de refroidissement; on emploie plutôt un système d'évacuation des copeaux qui permet à la machine à fraiser de fonctionner de manière vraiment adiabatique de sorte qu'il n'y a pas de transfert de chaleur à la pièce à travailler ou à la fraise. L'efficacité du système d'évacuation des copeaux est telle que le recoupage des copeaux est presque éliminé et que la durée de l'outil est augmentée. La machine à fraiser comprend aussi une fraise à la structure améliorée, des dispositifs de serrage et de transfert.
Patent CA-2103289-A1 (CA)
Title: Foldable hunting seat
Inventor: ARIZPE-GILMORE ROBERTO
IPC: F41A23/06
Filed: 1993-11-17
Abstract: ABSTRACT OF THE DISCLOSURE    A scissor type foldable hunting seat, comprises a pair of  "U"  shaped tubular members,  each having a pair of vertical legs jointed by a horizontal fastening edge; both tubular members are coupled through their vertical legs; at least one of the vertical legs having a stop pin near its middle portion; a seat of flexible material grasped to the fastening edges of the tubular members; a weapon support arm having an upper vertical end and a "U" shaped horizontally bent lower end presenting two branches articulately fastened to the vertical legs of the tubular members and a horizontal connecting member which rests  in the stop pin of the vertical leg to maintain the weapon support arm in a hunting position and allows it to be folded when folding the seat; and a variable height weapon retaining fork coupled to the upper vertical end of the support arm.
Patent CA-2104651-A1 (CA)
Title: Roof apparatus
Inventor: HIRAI TAKASHI
IPC: E04D13/18
Filed: 1993-08-23
Abstract: ABSTRACT A roof apparatus is disclosed, which comprises a plurality of light collecting members, each of the light collecting member having a pair of (left and right) vertical members, an upper horizontal member, a lower horizontal member, and a transparent plate, the upper horizontal member being disposed at a ridge side end of the vertical members, the lower horizontal member being disposed at an eaves side end of the vertical members, the transparent plate being disposed on the inner periphery of the vertical members, the upper horizontal member, and the lower horizontal member, the light collecting members being connected in a slope direction of a roof, wherein the lower horizontal member has a transparent plate holding piece, a transparent plate contact wall, and a cover piece, the transparent plate holding piece being adapted to hold an eaves side end of the transparent plate, the transparent plate contact wall having the thickness which is smaller than the thickness of the transparent plate, the cover piece being adapted to cover an upper portion of the upper horizontal member of an adjacent eaves side light collecting member and extending from the upper end of the transparent plate contact wall.
Patent CA-2105454-A1 (CA)
Title: Boom control valve
Inventor: REEVES KIM C
IPC: F16K31/06
Filed: 1993-09-02
Abstract: ABSTRACT OF THE INVENTION      A control valve assembly designed to allow operation with minimum power requirements and a rapid response to a "shut off" command.  The assembly includes a pair of seal elements which operate in tandem.  When the valve is open, fluid passes through a series of chambers and as the valve is closed, a substantial passageway allows fluid to bleed quickly to the outlet and reduce pressure to zero almost instantly, thus achieving almost instant shutoff.  The dual seal arrangement is also designed so that internal fluid forces are nearly balanced so that minimal external power is required for proper operation.
Patent CA-2106071-A1 (CA)
Title: Adjustable lumbar supports for seats
Inventor: LANCE MARK A
IPC: A47C7/46
Filed: 1992-06-01
Abstract: There is disclosed a lumbar support mechanism (10) for a seat having a bracket (15) adapted to be fixed on one side frame (11) of a seat, a waistband (14) adapted to extend across the seat between the bracket (15) and the other side frame (12) of the seat behind cushioning material (13) of the seat, said bracket (15) including adjustment means (16) to either alter the distance between the ends of a fixed length waistband (14) or to alter the length of a portion of the waistband (14) extending between the bracket (15) and the other side frame (12) of the seat which includes the improvement of providing a friction reducing means (17) between the cushioning material (13) of the seat and the waistband (14) which friction reducing means (17) extends from the bracket (15) towards the other side frame (12) of the seat.
Patent CA-2106675-A1 (CA)
Title: Enzymatic process for the preparation of macrolactone
Inventor: BLANCHE FRANCIS
IPC: C12P21/04
Filed: 1992-03-26
Abstract: The invention relates to a process for the enzymatic preparation of a polyunsaturated macrolactone of the group A streptogramins by means of a microorganism or an acellular preparation derived from this microorganism, capable of oxidising the 2-3 bond of the D-proline of macrolactones to dehydroproline.
Patent CA-2106754-A1 (CA)
Inventor: MISAWA TOSHIAKI
IPC: E21B7/06
Filed: 1993-01-20
Abstract: The present invention relates to a positioning device capable of positioning a member in any direction with a high degree of resolution by using a hollow type harmonic drive mechanism, and to a drilling-direction control device for a drilling system utilizing the positioning device. The device of the present invention is mainly constituted by a double eccentric mechanism section (10). A first annular member (12) is rotatably supported by a circular inner circumferential surface (11a) of the cylindrical member (11) of this mechanism section, and a second annular member (13) is rotatably supported by a circular inner circumferential surface (11b) of the first annular member. Further, the circular inner circumferential surface (12b) of the first annular member is formed in a position deviated by a distance "e" relative to the center of the cylindrical member, and the circular inner circumferential surface (13b) of the second annular member is also formed in a position deviated by the distance "e" relative to the center of the circular inner circumferential surface of the first annular member. It is possible to move the center (C) of the circular inner circumferential surface (13b) of the second annular member in any direction within a range of a predetermined radius by relatively rotating these first and second annular members by using hollow type harmonic drive mechanisms (8, 9).