baber/WOPTO huggingface dataset:
Patent CA-2068220-A1 (CA)
Inventor: NOCHUMSON SAMUEL
IPC: B01L3/14
Filed: 1990-10-30
Abstract: Disclosed is a centrifuge tube (10) containing a porous selection means (21) for selectively separating and recovering biological substances from gels, broths, or solutions containing the same, and thus concentrating them, said tube comprising separate upper (20) and lower (30) containers and means for joining the two containers to form a unitary device, the bottom of said upper container (20) comprising a porous selection means (21), preferably a membrane containing a particulate substance which will selectively bind the biological substances while allowing unbound substances to pass through from the upper (20) to lower container (30) while being centrifuged. A method for recovering said biological substances in high concentration using said centrifuge tube is also provided, comprising introducing said gels, broths, or solutions containing the desired biological substances, centrifuging the same until the desired substance is bound to the selection means, and eluting the bound material from the selection means to recover said substance in concentrated form.
Patent CA-2069306-A1 (CA)
Inventor: FELTEN JOHN JAMES
IPC: H05K3/10
Filed: 1990-10-11
Abstract: A non-photographic method for making patterns in organic polymer films comprising the sequential steps: (a) applying to a substrate an unpatterned first layer comprising a solid organic polymer which is dispersible in a predetermined eluant; (b) applying to the unpatterned first layer a patterned second layer comprising an agent which is capable of changing the dispersibility of the solid organic polymer in the predetermined eluant; (c) effecting patterned diffusion of the dispersibility-changing agent into the underlying solid organic polymer layer; and (d) removing the areas of the underlying solid organic polymer which are dispersible in the eluant by washing them with the predetermined eluant.
Patent CA-2070899-A1 (CA)
Title: Bottle
Inventor: MEHTA MONICA R
IPC: B65D1/02
Filed: 1992-06-10
Abstract: ABSTRACT    A five or six gallon blow molded plastic water bottle has a regular hexaganol cross-section. The bottle is preferably made of polycarbonate and has a wall thickness of between .040 and .060 inch.  An intergral protrusion is formed on one face of the bottle and a depression is formed in a second diametrically opposite face of the bottle.  Adjacent bottles may be stacked by inserting the protrusion of one bottle into the depression of an adjacent bottle.  With the protrusion and depression of adjacent bottles engaged, the adjacent faces of each bottle contact each other so that the weight of the upper bottle which is borne by the lower bottle is distributed across the face.  When the protrusion and depression of adjacent bottles are engaged, the top surface of the protrusion does not engage the bottom surface of the depression, so that indica labels or the like attached to the depression are not defaced or damaged.
Patent CA-2078892-A1 (CA)
Inventor: GEORGOPOULOS PHILIP
IPC: H01M50/179
Filed: 1992-09-23
Abstract: CYLINDRICAL ELECTROCHEMICAL CELLS WITH A DIAPHRAGM SEAL                ABSTRACT OF THE INVENTION   Electrochemical cells are comprised of a seal member that has a centrally located cylindrical hub joining a base, which base has a ventable diaphragm portion and a nonventable diaphragm portion, which hub has an end extending above the base and an end extending below the base, into which a current collector is inserted in an interference fit with the end extending above the base, which ventable diaphragm portion joins the hub at an interface forming an arc of between about 135 degrees and 250 degrees, and which interface is the thinnest portion of the base.
Patent CA-2078974-A1 (CA)
Inventor: SARTORI GUIDO
IPC: C08G63/91
Filed: 1992-09-23
Abstract: The present invention describes a method for the synthesis of saturated aliphatic polyesters by reaction of saturated or aromatic diacid chlorides with oligomeric aliphatic polyester diols, a method to thermally crosslink membranes prepared from the above saturated aliphatic polyesters, and the use of the crosslinked membranes to separate aromatics from saturates.
Patent CA-2081032-A1 (CA)
Title: Method for producin single-phase incongruently melting intermetallic phases
Inventor: EDELING MARTIN
IPC: C22B5/04
Filed: 1992-10-21
Abstract: Abstract of the Disclosure A method for producing single-phase intermetallic phases, which melt incongruently within a temperature range of 900° to 2,000°K, with a homogeneity range of ? 10 atom% at room temperature by co-reduction is described.  The exothermic reaction of the calciothermal reduction is adjusted by altering the oxide content of the reaction mixture, the composition of which corresponds to the desired single-phase alloy, in such a way that the temperature condition Tm > TR ? 0.9 Tm (in °K) is fulfilled, Tm being the melting temperature of the intermetallic phase and TR the reaction temperature.  The components of the reaction mixture, with the exception of calcium, have an average particle size of ? 75 µm.  The reaction product at the end of the exothermic reaction is tempered at a temperature which is at least 0.7 times the melting temperature Tm of the desired, single-phase alloy, measured in °K, but is less than the meltingtemperature Tm, during a period sufficient for the diffusion of the components.
Patent CA-2083225-A1 (CA)
Inventor: SMITH MARC L
IPC: C09D167/00
Filed: 1992-11-18
Abstract: A low cost, high performance coating for sheet metal which is to be formed into siding for houses and automobile panels is made from a polyester prepared by the condensation of hexahydrophthalic acid and a mixture of 1,4-cyclohexanedimethanol and an acyclic polyol wherein the mole percent of acyclic polyol is from 50 to 60; and a crosslinking agent containing the -N-CH2-OR moiety wherein R is hydrogen or an alkyl group having from 1 to 4 carbon atoms and the unsatisfied valence is attached to an organic group capable of incorporation into a film.
Patent CA-2083674-A1 (CA)
Inventor: SIMON RON
IPC: A47B88/00
Filed: 1992-11-24
Abstract: A toe kick drawer is supported in an inset base beneath an enclosure of a bathroom vanity cabinet.  The toe drawer has a recess which conforms to the inset base of the cabinet and preserves the ability of a user to place a front part of a foot underneath the cabinet when using a sink. The toe drawer allows efficient use of space and protects items and articles from water damage.  The toe drawer may have rolling or sliding means coupled to the cabinet for easy opening or closing by a hand or a foot.
Patent CA-2085647-A1 (CA)
Inventor: LEWANDOWSKI DANIEL J
IPC: B65D85/36
Filed: 1992-12-17
Abstract: A dough can capable of venting internal gasses during proofing until the dough expands to fill the volume of the container is disclosed.  The container of the present invention includes a cylindrical body, at least one end cap, a second end and means for allowing venting of internal gasses during proofing.  A preferred means includes providing at least one notch in the wall of the container proximate the end cap.  A method of proofing dough is also disclosed.
Patent CA-2085904-A1 (CA)
Title: Apparatus for delivering a rapidly setting composition
Inventor: ANNETT MARTIN F
IPC: B01F15/04
Filed: 1991-06-19
Abstract: To ensure that a rapid setting cementitious composition sets as required, the rate of flow of a main supply of the grout less a gelling agent is sensed as is the rate of flow of the gelling agent therefor, and the flow rate of the gelling agent is adjusted if the actual rate differs from the predetermined rate.
Patent CA-2086043-A1 (CA)
Title: Method of and apparatus for cold forming toothed wheels from sheet metal
Inventor: FRIESE UDO
IPC: B21D53/28
Filed: 1992-12-22
Abstract: A one-piece gear with an externally toothed rim extending at right angles to the hub of the gear arid preferably having a smooth internal surface is obtained by converting a circular disc-shaped blank of ductile metallic material into a preform with a concavo-convex or otherwise configurated flange extending to one side of the central portion of the thus deformed blank. The central portion of the deformed blank is clamped between the sections of a first rotary tool while an externally toothed second rotary tool advances radially toward the first tool to convert the flange into an externally toothed rim within a space which is defined in part by a peripheral recess of the first tool and in part by a registering peripheral recess of the second tool.
Patent CA-2086803-A1 (CA)
Inventor: NANDAGIRI ARUN
IPC: A61K8/46
Filed: 1993-01-06
Abstract: A single formula, mild permanent wave reducing composition and method of permanently waving or reshaping human hair that provides a strong, long lasting curl and leaves the hair soft while minimizing further damage to already damaged hair. The composition contains a cysteamine reducing agent compound selected from the group consisting of cysteamine, a cysteamine salt, and mixtures thereof; preferably alone (without a monothioglycolate; a monothioglycolic acid ester, e.g., thioglycerol; a thiolactic acid; a sulfite; a hyposulfite, or a bisulfite second reducing agent). The cysteamine compound should be present in an amount of about 7.8% to about 9.0% by weight; and sufficient additional alkali, if necessary, to bring the pH of the composition to about 7.8 to about 8.5. Optionally, a hair softening and/or moisturizing agent, such as glycerine is included in the composition in an amount of about 0.1% to about 15% by weight of the composition. The composition can be lotion or water wrapped and can be used with or without heat. Unexpectedly, the composition is applied to any type of hair, regardless of structural damage to the hair, resulting in the same degree of curl tightness and softness and can be applied much more frequently than prior art permanent wave compositions without significant damage to the hair.
Patent CA-2088388-A1 (CA)
Title: Safety device for an apparatus provided for lifting and lowering loads
Inventor: VAN RAEMDONCK RENE
IPC: B66F17/00
Filed: 1993-01-29
Abstract: ABSTRACT            "Safety device for an apparatus provided for lifting and lowering loads"            The invention relates to a safety device for an apparatus provided for lifting and lowering loads and comprising at least one column (1,10), an arm (2,11) attached to this column and means for moving said arm up and downwards, characterized in that said means act upon a rod (5) which slides telescopically in a hollow tube  (6)  or upon a hollow rod (8) which slides around a loose rod (9) in order to lift said arm (2, 11) and to lower it so that when said arm (2,11) is held back, the rod (5) and the hollow tube (6), and the hollow rod (8) and the loose rod (9), can slide with respect to one another The abstract refers to figure 2.
Patent CA-2089581-A1 (CA)
Title: Combination of a proximity switch and a target, a proximity switch and a target for such a combination
Inventor: SEALE ALLEN G
IPC: G06K7/08
Filed: 1991-08-15
Abstract: ABSTRACT    An inductive type proximity switch S includes an open-ended loop L3 adjacent to the inductor L1, L2 of the parallel resonant circuit of its main LC oscillator.  A high speed bistate switch S1 is connected between the ends of the loop L3.  A pulsed input to the switch S1 causes sequential making and breaking of a connection between the ends of the loop L3 whereby the loop L3 functions as a Faraday shield to inhibit mutual inductive linking of the inductor L1, L2 with an inductor L4 of a passive LC resonant circuit L4, C4 of a target T when the target T is in proximity with the proximity switch S and the connection between the ends of the loop L3 is made by the bistate switch S1.           Figure 1
Patent CA-2089661-A1 (CA)
Title: Transgenic non-human animals capable of producing heterologous antibodies
Inventor: LONBERG NILS
IPC: C07K16/30
Filed: 1991-08-28
Abstract: The invention relates to transgenic non-human animals capable of producing heterologous antibodies, i.e.: antibodies encoded by immunoglobulin heavy and light chain genes not normally found in the genome of that species of non-human animal. In one aspect of the invention, transgenes encoding unrearranged heterologous human immunoglobulin heat and light chains are introduced into a non-human animal thereby forming a transgenic animal capable of producing antibodies encoded by human immunoglobulin genes. Such heterologous human antibodies are produced in B-cells which are thereafter immortalized; e.g., by fusing with an immortalizing cell line such as a myeloma or by manipulating such B-cells by other techniques to perpetuate a cell line capable of producing a monoclonal heterologous antibody. The invention also relates to heavy and light chain immunoglobulin transgenes for making such transgenic non-human animals as well as methods and vectors for disrupting endogenous immunoglobulin loci in the transgenic animal. The invention also includes methods to generate a synthetic immunoglobulin variable region gene segment repertoire used in transgene construction and methods to induce heterologous antibody production using animals containing heterologous rearranged or unrearranged heavy and light chain immunoglobulin transgenes.
Patent CA-2095686-A1 (CA)
Title: Free standing pull tower
Inventor: BALLARD JAMES G
IPC: B60S5/00
Filed: 1993-05-06
Abstract: A free standing rotary tower assembly for applying a force to a damaged part of a vehicle, the assembly including a tower, a support plate mounted on the bottom of the tower, a cylindrical member mounted on the bottom of the plate and a floor mount for supporting the tower assembly, the floor mount including a center plate having a tubular member for matingly engaging the cylindrical member and a number of caster assemblies mounted in the centering plate in a position to engage the support plate when the cylindrical member is aligned with the tubular member.
Patent CA-2099347-A1 (CA)
Title: Cyanoacrylate Adhesives with Improved Cured Thermal Properties
Inventor: ATTARWALA SHABBIR
IPC: C09J4/00
Filed: 1993-06-28
Abstract: A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a sulfur containingcompound of the formula:     (see fig.I) (see fig. II) or (see fig. III) where R1 and R2 are, respectively, monovalent and divalent hydrocarbon groups which may be optionally substituted with halogen, NO2, oxo, CN, alkoxy, hydroxy, acyloxy or SO2.
Patent CA-2103042-A1 (CA)
Inventor: CHINN KEITH
IPC: E06B3/267
Filed: 1993-03-03
Abstract: 2103042 9318267 PCTABS00025 A frame member for a window or door comprises two extruded metal frame elements separated by a thermally insulating resin. The elements (10, 12) are interengaged initially in side-by-side relationship by respective co-operating lips (20 and 30) to define an upper channel (38) and a lower channel (40). A resilient tube (42) is then wedged into the channel (38) to retain the elements as a self-supporting assembly subsequent to which the assembly is inverted and a resin in liquid form is poured into the channel (40).  After the resin has set the tube (42) is removed and the channel (40) is "de-bridged" by cutting out a part of its base so that the elements (10 and 12) are connected only by the thermally insulating set resin (44). The invention enables use of metal frame elements having surface finishes and/or colours which differ from one another.
Patent CA-2105530-A1 (CA)
Title: Pharmaceutical composition for topical application to the eye for treating increased intraocular pressure
Inventor: FRANZ HELMUT
IPC: A61K9/08
Filed: 1993-09-03
Abstract: Abstract Pharmaceutical composition Polyhydric alcohols such as sorbitol, mannitol, inositol or xylitol or mixtures thereof are effective for lowering the intraocular pressure of aqueous humour and may be applied topically in an ophthalmic solution in order to lower such increased intraocular pressure.
Patent CA-2106403-A1 (CA)
Title: Method and device for cleaning underwater pipes
Inventor: RUFOLO PAUL G
IPC: B08B9/04
Filed: 1992-12-04
Abstract: A method of removing animal growth organisms and such foreign material from the inside surface of an underwater pipe extended at its outlet end into a wet well at a pumping shore station, by inserting a bladed cleaning device in the pipe at the wet well and pulling it to a spaced inlet end of the pipe, the cleaning device having stationary rigid circumferential and radial cutting edges suited to core chuncks of foreign matter free from the pipe surface and dice them into smaller pieces of the foreign material. The method further provides injecting fluid under pressure from the cleaning device toward the bottom of the pipe as a fluid stream of sufficient velocity for raising the foreign matter chuncks and pieces into suspension with water in the pipe, and pulling the cleaning device axially within the pipe back toward the wet well. The method further provides continuously removing such foreign matter chuncks and pieces from a containment area in the wet well via an air lift passageway extended vertically between the containment area and an overlying spillway disposal system by discharging compressed air continuously to the lower end of the passageway, this air lift action also serving to draw water and the suspended chuncks and pieces of foreign matter in the pipe toward and into the containment area and wet well.
Patent CA-2108675-A1 (CA)
Title: A machine for vertical casting of pipes of concrete or a similar material in a mould system with a distributor wheel
Inventor: HERRMANN BENT
IPC: B28B21/26
Filed: 1992-04-15
Abstract: A machine serves to cast pipes of concrete or a similar material substantially vertically. The machine comprises an inner mould part (2) and an outer mould part (12). These mould parts are displaced axially with respect to each other during the casting process. A vibrator is preferably provided upwardly in the inner mould part (2), and an axially journalled distributor wheel (1) is rotatably mounted on the top of said mould part (2), said distributor wheel (1) having a plurality of blades (4) for distributing the material in the ring gap between the two mould parts (2, 12). The distributor wheel (1) and its mount are constructed so stiffly that the vibrations generated by the vibrator are transmitted to the material through the blades of the wheel. This ensures, when a firm profile ring is used for the casting of the spigot end, that the area of difficult access below said ring is filled completely with concrete, and that the concrete obtains the prescribed quality. It is hereby possible to cast pipes which have very narrow longitudinal tolerances and also spigot ends which fully satisfy the requirements made of shape and quality.
Patent CA-2110089-A1 (CA)
Title: Debrominative chlorination of pyrroles
Inventor: KAMESWARAN VENKATARAMAN
IPC: C07D207/34
Filed: 1993-11-26
Abstract: DEBROMINATIVE CHLORINATION OF PYRROLES                 ABSTRACT OF THE INVENTION           There  is  provided  a  simple  quantitative procedure  for the chlorination of pyrrole  compounds containing electron withdrawing substituents via the displacement of bromine with chlorine on the pyrrole nucleus.
Patent CA-2111797-A1 (CA)
Title: Tool for extracting and inserting light bulbs
Inventor: HARE ALAN R E
IPC: B25B9/04
Filed: 1993-12-17
Abstract: In a tool for extracting and inserting light bulbs, it is known to have a cup-shaped gripper made out of an elastic material attached to a support having a clear hole running vertically through the center with which to attach said tool to a pole.  In this invention, the gripper is provided along its upper edge with a number of vertically-aligned and equally-spaced clear slots which facilitate expansion of the gripper when a bulb is inserted into it and horizontally-aligned beads or ridges on the inside surface with which to grip and locate the bulb in the gripper.  The support is adapted to be held and manipulated comfortably in the hand, having a generally square profile with rounded edges and a textured handgrip surface along it's length.  A splined and tapered socket is provided in the base of the support to receive a matching connector mounted upon a pole.  A self-storing hinged hang-up loop is located just above the base of the support.  These improvements allow the tool to be more convenient, easier, and safer for the operator to use.  They also extend the tool's range of useful operation to include handheld operation and use of the same size of tool for a variety of light bulb shapes, reducing the number of different tools required to handle the wide variety of screw-type light bulbs in common usage.  The present design allows economic production of a tool which is suited to both household and industrial applications.
Patent CA-2116674-A1 (CA)
Title: Imidazolidyl macrolides
Inventor: GOULET MARK
IPC: A61K31/4184
Filed: 1992-09-02
Abstract: Imidazolidyl macrolides of general structural formula (I) have been prepared from suitable precursors by alkylation and/ or arylation at C-3" and/or C-4" of the cyclohexyl ring. These macrolide immunosuppressants are useful in a mammalian host for the treatment of autoimmune diseases; infectious diseases, the prevention of rejection of foreign organ transplants and/or re-lated afflictions, diseases and illnesses.
Patent CA-2118187-A1 (CA)
Title: Surgical needle with decreased penetration
Inventor: MCGREGOR WALTER
IPC: A61B17/06
Filed: 1994-10-14
Abstract: A blunt tip surgical needle which significantly reduces the probability of skin penetration of the gloved hand of  an operator is disclosed. The blunt tip needle includes a tip portion having at least one flat surface. The flat surface(s) blends smoothly between each other and with the outer surface of the tip portion such that the entire tip portion has a continuously smooth outer surface lacking any discontinuities or sharp edges.
Patent CA-2119081-A1 (CA)
Title: Process for the preparation of a gamma aluminum oxynitrite powder optically transparent and powder thereof
Inventor: BACHELARD ROLAND
IPC: C04B35/58
Filed: 1994-03-15
Abstract: The process consists in reacting aluminium nitride with  alpha -alumina and with an alumina with a high specific surface or a precursor which generates an alumina with a high specific surface. More precisely, the process consists in mixing the aluminium nitride, the  alpha -alumina and the alumina with a high specific surface or the precursor of such an alumina, in drying the said mixture, in heating the said mixture at a temperature sufficient to obtain a gamma -aluminium oxynitride powder and then in grinding the powder thus obtained. The agglomerated  gamma -aluminium oxynitride powder is characterised in that the porosity of the agglomerate is greater than 75%. The ground  gamma -aluminium oxynitride powder is characterised in that 100% of the particles have a size of less than 10  mu m and in that it has a transmittance of at least 8% measured at 2500 cm<-1> on a KBr disc with a thickness of 0.9 mm containing 3.33% of  gamma -aluminium oxynitride.
Patent CA-2119537-A1 (CA)
Title: Apparatus for producing portable, tube-like packs from printing products
Inventor: VAN WEGEN WILLEM F S M
IPC: B65B25/14
Filed: 1994-03-21
Abstract: Abstract of the Disclosure The  printing  product  (16)  is  inserted  from above into the compartment  (52)  between the fingers (56)  and  is  positioned  such  that  it  is  arranged approximately symmetrically with respect to the axis of rotation (54') of the fingers (56). Upon turning of the fingers in the direction of the arrow,  the printing product is folded by interaction with flexible belts (114, 116) in an S-shaped form and is thus brought into a tube-like form. A film-like retaining element (34) is wound up along with it, in order to sheath the printing product (16) and keep it in the tube-like form.                                                (Fig. 9)