baber/WOPTO huggingface dataset:
Patent CA-2120619-A1 (CA)
Title: Novel potent inducers of terminal differentiation and methods of use thereof
Inventor: BRESLOW RONALD
IPC: C07D487/04
Filed: 1992-10-05
Abstract: The present invention provides the compound having structure (I), wherein each of R1 and R2 are independently the same as or different from each other; when R1 and R2 are the same, each is a substituted or unsubstituted arylamino, cycloalkylamino, pyridineamino, piperidino, 9-purine-6-amine, or thiozoleamino group; when R1 and R2 are different, R1 =  R3-N-R4, wherein each of R3 and R4 are independently the same as or different from each other and are a hydrogen atom, a hydroxyl group, a substituted or unsubstituted, branched or unbranched alkyl, alkenyl, cycloalkyl, aryl, alkyloxy, aryloxy, arylalkyloxy, or pyridine group, or R3 and R4 bond together to form a piperidine group and R2 is a hydroxylamino, hydroxyl, amino, alkylamino, dialkylamino or alkyloxy group; and n is an integer from about 4 to about 8. The present invention also provides a method of selectively inducing terminal differentiation of neoplastic cells and thereby inhibiting proliferation of such cells. Moreover, the present inventtion provides a method of treating a patient having a tumor characterized by proliferation of neoplastic cells. Lastly, the present invention provides a pharmaceutical composition comprising a pharmaceutically acceptable carrier and a therapeutically acceptable amount of the compound above.
Patent CA-2121764-A1 (CA)
Title: Copolymer useful as viscosity index improving additive for hydraulic fluid
Inventor: GORE ROBERT H
IPC: C10N30/00
Filed: 1994-04-20
Abstract: A copolymer useful as a viscosity index improving additive for hydraulic fluids includes from about 55 wt% to about 99.5 wt% alkyl ester repeating units of the structural formula:   wherein each occurrence of R1 is H or methyl and each occurrence of R2 is independently selected from the group consisting of (C8-C15)alkyl; and from about 0.5 wt% to about 45 wt% repeating units selected from alkyl ester repeating units having (C1)alkyl groups, (C4)alkyl groups, (C16-C24)alkyl groups and mixtures thereof.
Patent CA-2123298-A1 (CA)
Title: Trenchless Pipeline Replacement
Inventor: HANDFORD REGINALD G
IPC: F16L55/165
Filed: 1991-11-13
Abstract: A method of replacing an existing underground pipe (44) with a new pipe (48) comprises the steps of moving a pipe removing tool (70) along the existing pipe (44) to remove the exiting pipe and dragging the new pipe (48) behind the tool (70) to replace the existing pipe while imparting vibratory motion to the tool (70) or continuously applying a dressing material ahead of the new pipe to act as lubricant or to fill in the annular space between the new pipe and the surrounding soil. According to another embodiment, the method comprises the steps of pushing out the old pipe (126) in one direction by means of a pipe removing tool (110) connected to a hydraulic unit (10) through a stem and replacing the old pipe (126) by means of a new pipe (48) by dragging the new pipe along behind the stem moving in the opposite direction during a return run. Pipe removing tools (70, 110) are further provided which are capable either of fracturing the old pipe or extracting the old pipe and having chambers (86) for feeding a lubricating or filter material or provided with a vibrator (105) therein. A hydraulic unit (10) for driving the pipe removing tools is also provided which is associated with apparatus (40) for gripping and rotating the stem to effect assembly or disassembly of the stem from individual screw-threaded pipe sections (38).
Patent CA-2124227-A1 (CA)
Inventor: SASSI EZIO M
IPC: H02K15/02
Filed: 1994-05-25
Abstract: Abstract In a method for the automatic forming of packs of trimmed metal sheets for armatures of electrical machinery or the like, the pack (P') is formed by the controlled drop of a sheet stack (P) housed in a tubular magazine (1) open at the bottom, against an underlying collection bottom (2) which is brought to a predefined distance from the lower end of the magazine (1).  A tightening clamp (3,4) at the lower end of the magazine (1) blocks the stack (P) against a further gravity drop after its descent against the collection bottom (2).  A subsequent first lowering of the bottom (2) to separate the pack (P') from the overlying stack, by virtue of detachment means (22, 122), is followed by a detachment from the lower sheet (L') of the stack (P) of a possible sheet (L) which is mistakenly and temporarily held against said lower sheet (L') of the stack (P) but belongs to the overlying pack (P').  This invention also relates to a device for the accomplishment of this method.
Patent CA-2125713-A1 (CA)
Inventor: NEALEY RICHARD H
IPC: G03G5/05
Filed: 1994-06-13
Abstract: A process for fabricating an electrophotographic imaging member including providing a substrate to be coated, forming a coating comprising photoconductive pigment particles having an average particle size of less than about 0.6 micrometer dispersed in a solution of a solvent comprising n-alkyl acetate having from 3 to 5 carbon atoms in the alkyl group and a film forming polymer consisting essentially of a film forming polymer having a polyvinyl butyral content between about 50 and about 75 mol percent, a polyvinyl alcohol content between about 12 and about 50 mol percent, and a polyvinyl acetate content is between about 0 to 15 mol percent, the photoconductive pigment particles including a mixture of at least two different phthalocyanine pigment particles free of vanadyl phthalocyanine pigment particles, drying the coating to remove substantially all of the alkyl acetate solvent to form a dried charge generation layer comprising between about 50 percent and about 90 percent by weight of the pigment particles based on the total weight of the dried charge generation layer, and forming a charge transport layer.
Patent CA-2125809-A1 (CA)
Title: Convertible overshoe with tear resistant bead
Inventor: BELL MICHAEL
IPC: A43B3/18
Filed: 1994-06-14
Abstract: An convertible overshoe for disposition on one primary shoe and being convertible for disposition on a larger primary shoe. Each of said primary shoes has an outer surface. The overshoe is formed as an integral unit of an elastic material, e.g., rubber, and comprises a sole and an upper. The sole includes anti-slip grit on its outer surface. The upper is in the.form of a peripheral sidewall having an opening at the top edge thereof. The opening is of a sufficient size to enable a primary shoe to be extended therethrough so that it is received closely within the overshoe to prevent the overshoe from falling off. The sidewall of the upper includes a reinforcing strip in the form of a continuous thickened bead extending along a portion of the peripheral edge of the opening and spaced below that edge and an associated contiguous portion defining a trim line. The material of the sidewall at the trim line is readily severable so that it can be severed to remove the sidewall portion of the upper from it to the opening. This action forms an enlarged opening in the upper for a larger primary shoe to be extended through it into to overshoe. The reinforcing bead prevents the overshoe from tearing at the enlarged opening should that opening be stretched when the larger primary shoe is inserted therethrough.
Patent CA-2127970-A1 (CA)
Title: Tread for pneumatic tire and tire comprising such a tread
Inventor: HITZKY LEO J
IPC: B60C11/12
Filed: 1994-07-13
Abstract: A pneumatic tire having a block design suited for off-road use, modified to improve rolling resistance and noise properties when used on paved surfaces, has a tread design having angled lateral grooves with three branches between the blocks in each circumferential row of blocks in the tread. Narrow grooves separate the blocks in several of the rows of blocks, and tire bars are present in the lateral grooves separating blocks in other rows of blocks. Hook shaped sipes are located in the blocks about halfway between two laterally extending grooves.      Void areas in the shoulder area of the tire enhance traction in mud and sand.
Patent CA-2128841-A1 (CA)
Title: Interlace Formatting in a Hyperacuity Printer
Inventor: CURRY DOUGLAS N
IPC: G06K15/12
Filed: 1994-07-26
Abstract: A system for performing interlace scanning with plural light beams. The system includes a data source for supplying sequential lines of image data and a memory device for sequentially storing a plurality of the lines of image data, where the memory device has an input port for receiving the lines of image data from the data source. The memory device also has plural output ports where each of the plural output ports corresponds with one of the plural light beams. The system further includes addressing circuitry for addressing the memory device, where the addressing circuitry provides plural sets of slowscan output address signals corresponding to the plural output ports for providing an address value.    The address value of each of the slowscan output address signals are offset from other of the address values by an offset amount provided by the addressing circuitry to enable interlacing of the plural light beams.
Patent CA-2128846-A1 (CA)
Title: Process for cleaning articles
Inventor: WACK OSKAR K
IPC: C23G1/00
Filed: 1994-07-26
Abstract: ABSTRACT      A    mixture    of    propyleneglycolmethylether    and propyleneglycolether which is added in a ratio of 60:40 and 90:10 to the last rinsing bath in which metal parts are cleaned, in order to achieve intermediate corrosion resistance.
Patent CA-2129407-A1 (CA)
Title: Process for producing a metal melt
Inventor: FRITZ ERNST
IPC: C21C5/36
Filed: 1994-08-03
Abstract: ABSTRACT OF THE DISCLOSURE:   In a process for producing a metal melt, in particular, a steel melt, in an electric arc furnace, the bath surface is covered by a foamed slag during the flat bath period(s). In order to ensure the advantages of an electric arc enveloped by foamed slag over an extended period of time at expenditures as low as possible, level measuring of the layer height of a slag is carried out several times during a furnace heat. Foamed slagenveloping an electric arc generated by at least one electrode is formed by blowing solids, gases or a mixture of solids and gases into or onto the slag or the metal melt. The layer height of the foamed slag is dimensioned such that the foamed slag at least extends over all of the electric arc, a number of advantages, thus, being, utilized to the optimum degree.
Patent CA-2131428-A1 (CA)
Title: Alloy material addition method and apparatus for smelting and melting furnaces
Inventor: PETING ROBERT G
IPC: C21B7/16
Filed: 1994-09-02
Abstract: A method and apparatus for feeding alloy additive and burden materials to the burden in a vertical shaft furnace working volume generally by gravity-feeding the alloy additive to the furnace tuyere for entrainment in the blast media and transfer to the burden, which improves the recovery rate of the charged additive components in the molten metal and, allows utilization of undersized materials without secondary handling and treatment of the feed materials or utilization of pneumatic feed apparatus.
Patent CA-2134300-A1 (CA)
Title: Inflatable prosthesis
Inventor: CERNY DAVID E
IPC: A61F2/00
Filed: 1994-10-25
Abstract: An inflatable prosthesis is disclosed which comprises a structural member having a bore dimensioned to receive a needle formed in its back end. An elastomeric balloon has a back end in sealing engagement with the structural member and has a front end extending beyond the front end of the structural member such that a portion of the structural member is contained within the balloon. A port is defined in the structural member for placing the bore in fluid communication with a port location exterior of the structural member which is contained within the balloon, whereby fluid infused into the bore passes through the port and into a space between the balloon and the exterior surface of the structural member to inflate the balloon. An elastomeric member has one portion attached to the structural member and another portion attached to the front end of the balloon so as to partially constrain axial expansion of the prosthesis as the balloon is inflated.
Patent CA-2134400-A1 (CA)
Title: Card intermediate and method
Inventor: GARRISON RONALD R
IPC: B42D5/02
Filed: 1994-10-26
Abstract: A card intermediate, as for identification, which includes a business form having one or more cards diecut into it and backed by a laminate of multi-ply film. An embodiment is illustrated where an exposed face of the laminate is reverse printed with alpha and/or numeric information so as to be readable when the card is removed from the form.
Patent CA-2134515-A1 (CA)
Title: Euphausiid harvesting and processing method and apparatus
Inventor: SAXBY DAVID J
IPC: A23K10/20
Filed: 1994-10-27
Abstract: Method and apparatus for harvesting and processing zooplankton and, in particular, for harvesting and processing euphausiids for subsequent use as a feed product for early stage juvenile or larvae feed or for a food product as an additive.  The euphausiids are continuously harvested from coastal waters and dewatered.  The dewatered product is passed to a heat exchanger to increase its temperature and, thence, to a digester where a desired level of enzymatic activity is obtained.  The product is then held by a surge tank for subsequent transfer to a ball dryer where the product is dried at a relatively low temperature without destroying the stabilized enzymes created in the digester.  The digesting step may be deleted in the event the end use of the product is for a food product.
Patent CA-2136168-A1 (CA)
Inventor: BULLOCK ROBERT L
IPC: B61D3/18
Filed: 1994-11-18
Abstract: A bridge plate assembly for use in moving vehicles between rail cars for unloading and loading has a sufficient length to span the space between adjacent rail cars and has sufficient width to accommodate vehicles of varying wheelbase.      The plate assembly includes two load bearing plate members, positioned one on top of another, with one end of each plate member being formed and adapted to be attached to the end of a rail car. Each plate member has top and bottom face layers bonded to an intermediate low density core.
Patent CA-2143028-A1 (CA)
Title: Rigid closed cell polyisocyanate based foams for use as positive flotation materials in watercraft
Inventor: GREEN TODD J
IPC: C08J9/30
Filed: 1995-02-21
Abstract: There is now provided a rigid closed cell polyisocyanate based foam for use as a positive flotation material for watercraft which meets the U.S. Coast Guard immersion test (CGD 75-168, 33 C.F.R. ?183.114). As a blowing agent for this foam, a mixture of 1,1,1,2-tetrafluoroethane (R-134a) as a frothing agent and water is used, where the amount of water is less than 2.5 weight percent based on the weight of the formulated polyol composition. Also, in preferable embodiments, the polyols in the polyol composition are initiated by at least one amine; and the polyol composition contains a delayed action tertiary amine catalyst. The foams used in the invention have excellent dimensional stability. In another embodiment, there is also provided a formulated polyol composition of R-134a and a polyol composition having an average OH# of less than 400 and an average functionality of greater than 4 using R-134a and less than 2.5 wt.% of water, where the isocyanate and the formulated polyol composition are reacted in a weight ratio of 0.9:1 to 1.3:1, to provide a dimensionally stable foam for use as a flotation foam in watercraft.
Patent CA-2149457-A1 (CA)
Title: Collapsible Carrier
Inventor: KALOUSTIAN JOHN
IPC: B60R9/06
Filed: 1995-05-16
Abstract: A bicycle carrier for attachment to a vehicle includes a lower mounting member, an upper mounting member and a support member.  The upper mounting member is pivotably attached to the lower mounting member to pivot about a horizontal pivot axis.  The support member is pivotably attached to the lower mounting member to pivot about a vertical pivot axis.  The lower mounting member, the upper mounting member and the support member can be pivoted about their respective axes to lie in a substantially coplanar storage position.
Patent CA-2149898-A1 (CA)
Title: Chair, especially office chair
Inventor: DUBACH FREDI
IPC: A47C1/022
Filed: 1994-08-10
Abstract: The present invention relates to a chair, in particular an office chair, with a seat (1) that can pivot about a horizontal axis (K) as well as a backrest (2) that can pivot about a horizontal second axis (H). In addition, the chair has a seat support (5) that holds the seat. The first axis (K) extends at least approximately through the ankle joint of the user. The second axis (H) passes at least approximately through the hip joint of the user. This results in optimal movement proportions that cannot be obtained with the chairs known up to the present time.
Patent CA-2149984-A1 (CA)
Title: Method for packaging article utilizing atmospheric pressure and packing device
Inventor: MITSUTA TERUO
IPC: B65B31/04
Filed: 1995-05-23
Abstract: The  invention  provides  a device  for  packaging  an article which  includes  reduced number of parts,  which  is light-weight, which enables simple packaging and depackaging operation, and which is superior in terms of rust-proofing and dust-proofing properties.  The invention also provides a method  for  packaging  an  article.    According  to  the invention, an article 1 is placed on a base table 2 having a peripheral  wall  7 of an appropriate height.   A packaging sheet 3 having flexibility and air-tightness is put over the article 1.  The peripheral edge 3a of the packaging sheet 3 is sealingly engaged with the peripheral wall 7 of the base table 2.  A connection pipe 10 provided at the base table 2 or the packaging sheet 3 is connected to a vacuum pump 12, so as to evacuate the space within the packaging sheet 3.          The article 1 is pressingly urged against the base table 2 by means  of the pressure difference  across  the packaging sheet 3, by reason of the atmospheric pressure, so as to be fixed to the base table 2.
Patent CA-2150381-A1 (CA)
Inventor: WIZANI WOLFGANG
IPC: D21C1/02
Filed: 1993-12-02
Abstract: The present invention relates to a process for producing viscose pulp from lignocelluloses, such as hardwood, softwood or annual plants, in which process the lignocellulose is treated in a digester at first with saturated steam to prehydrolyze hemicelluloses and subsequently, without flashing, with hot black liquor (HSL) of a preceding sulfate pulp digestion as well as, if desired, under addition of fresh white liquor (WL) to neutralize the acidic reaction products formed, neutralization liquor (NL) thus being formed in the digester.        Upon addition of the amount of alkali required for delignification in the form of fresh white liquor (WL), if desired, in combination with a displacement of neutralization liquor (NL) and temperature adjustment, digestion then will take place with or without temperature gradient. When reaching the desired degree of digestion, digestion is terminated by displacement of the hot black liquor (HSL) with cold alkaline washing filtrate (WF), at the same time the pulp is freed from still adhering lignin degradation products, and the thus obtained pulp is discharged from the digester at a temperature of below 100°C.
Patent CA-2150567-A1 (CA)
Inventor: HODGKIN JONATHAN HOWARD
IPC: D01F11/14
Filed: 1993-12-07
Abstract: The invention relates to a PMR type resin which comprises a mixture of; a) nadic acid of formula (Ia) or a derivative thereof; b) a diaminobisimide of formula (Ib); and c) an aromatic tetracarboxylic acid of formula (Ic) or a derivative thereof, the components (a), (b) and (c) being present in the approximate molar proportions of 2:n:n-1 respectively; and wherein n is chosen to provide a polyimide polymer of the desired size; Ar and Ar" may be the same of different and each represent an optionally substituted aryl, optionnaly substituted bridged or bonded di- or poly- aryl, or optionally substituted heteroaryl group; Ar' is an optionally substituted aryl or heteroaryl group which provides for good conjugation between the nitrogen containing groups; and X is an alkyl group or hydrogen and high temperature resistant matrix polymers for composites made therefrom.
Patent CA-2155888-A1 (CA)
Title: Real-time edit control for video program material
Inventor: OTTESEN HAL H
IPC: H04N7/173
Filed: 1995-08-11
Abstract: A system and method for editing program material provide viewers with real-time editing control. Digital program material are divided into relatively short segments and each of these segments are rated to indicate a level of potentially objectionable material contained therein. Each segment is tagged to indicate this rating. Prior to viewing the program material, or during playback of the program material, the viewer determines the rating level at which he or she wishes to view the programmaterial. This rating level is entered into the playback system. Upon playback, the system examines the tag of each segment to determine whether that segment shouldbe played. If a segment is tagged to indicate a rating with a higher level than that requested by the viewer, the tag is edited and not displayed. Thus, the program material is edited in real time as it is displayed to the viewer.
Patent CA-2162599-A1 (CA)
Inventor: CROYLE GENE F
IPC: G01B11/24
Filed: 1994-08-11
Abstract: An automatic garment inspection and measurement system can create a two-dimensional or three-dimensional electronic representation (11) of an object (5). This electronic representation (11) can then be combined with other electronic representations (11) to create a database (25) of measurements from which standard patterns can be generated for use in manufacturing garments. The electronic representation (11) can also be used to compare the manufactured object it represents to an ideal representation in order to determine if the object's measurements are within a predetermined tolerance of the ideal representation. A machine vision system (1) is used to capture an image of the object (5) and convert that image into a digital representation (11) which can then be added lo a database (25) to be used to compile an ideal pattern or can be compared to an already existing ideal image to determine if the object (5) is the correct size.
Patent CA-2163222-A1 (CA)
Inventor: CHEN SHIOU-SHAN
IPC: B01J23/78
Filed: 1994-06-30
Abstract: A        method       and associate          apparatus for  regenerating     and/or stabilizing   catalyst  used in      dehydrogenation   of alkylaromatic   hydrocarbons is   disclosed.          The alkylaromatic    hydrocarbon (1) and    steam    (2)  are combined     to         form feedstream   (3)  and   pass into    reactor (50).    The ensuing product  stream  (4) is reheated in heater   (52) to restore the heat lost and passed as partially converted reactant stream (5) into second reactor (54) and leaves as stream (6) comprising the dehydrogenation product. Restoration and/or stabilization of catalyst is accomplished by an alkali metal compound which is fed into feedstream (2) and/or product stream (5) via supply means (46 and 66), respectively. The amount of alkali metal compound entering the reactor(s) is monitored by means (42 and 62) which may in turn be coupled to activating means (44 and 64) to signal and activate the supply means. This method and apparatus permit the restoration and/or stabilization of the catalyst to be performed without interrupting the dehydrogenation reaction.
Patent CA-2165663-A1 (CA)
Title: Diagnostic reagent stabilizer
Inventor: BATESON JOSEPH E
IPC: C12Q1/00
Filed: 1994-06-21
Abstract: The inclusion of succinic acid or a salt thereof to stabilize compositions that include glucose oxidase and/or ferricyanide. Typically, the succinic acid or succinic acid salt is included in a diagnostic reagent utilized in test strips or test solutions useful for the analysis of glucose from a fluid sample.