baber/WOPTO huggingface dataset:
Patent CA-2153574-A1 (CA)
Title: Wedge-operated scaffold joint
Inventor: LUBINSKI RONALD
IPC: E04G7/32
Filed: 1994-01-07
Abstract: A releasable joint connects an upright (10) and a transverse brace (16) in an aluminum scaffold frame. A horizontal aluminum flange (12) is attached to the upright (10) and an aluminum connector (18) to the brace (16). The connector (18) has a mouth (50) which receives the flange (12). A steel wedge (20) is inserted through a vertical passage (52) in the connector (18) and an opening (28) in the flange (12). The opening (28) contains a vertical, planar wedge-seating surface (36) of uniform horizontal cross section. The connector (18) contains a pair of parallel, planar wedge-seating surfaces (54, 56), one above and one below the flange (12). These surfaces (54, 56) extend downwardly and radially outwardly relative to the upright (10) at a predetermined angle relative to vertical and have uniform horizontal cross sections. The wedge (20) has a vertical edge surface (64) that mates with the wedge-seating surface (36) in the opening (28) and a pair of edge surfaces (66, 68) inclined at the predetermined angle and mated with the wedge-seating surfaces (54, 56) in the connector (18). The various mated surfaces slide relative to one another as the wedge (20) is forcefully inserted or released from the joint, reducing wear. The wedge (20) also forces the connector (18) downwardly against the flange (12), during wedge (20) insertion, ensuring that the joint is reliably locked.
Patent CA-2154353-A1 (CA)
Title: Apparatus and methods for providing close captioning in a digital program services delivery system
Inventor: NAIR AJITH N
IPC: H04N7/167
Filed: 1994-01-18
Abstract: An apparatus for providing close captioning or text insertion in a digital program service delivery system comprising: a rate converter circuit (130) for receiving video codes and outputting video data, a video decoder circuit (132) for receiving the video data and outputting digital component video data, a digital to analog converter/analog encoder circuit (148) for converting the component video data into an analog video signal in a prescribed format; a line former circuit (142) for receiving close captioning digital data and forming a line of analog signal; a multiplexor (150) for inserting the line of analog signal into the analog video signal.
Patent CA-2154707-A1 (CA)
Title: Heat-exchanger coil assembly and complex thereof
Inventor: MARUYAMA NOBORU
IPC: F24H1/52
Filed: 1995-07-26
Abstract: A plurality of heat-exchanger coils each having a different winding diameter are provided between a header in the inlet side provided in an inlet tube and a header in the outlet side provided in the outlet tube so that the two headers are communicated to each other, and also a group of heat-exchanger coils each surrounded by another   heat-exchanger coil having a larger diameter as compared to that of the former is provided.
Patent CA-2155407-A1 (CA)
Title: Surface modified silica
Inventor: REGAN DAVID M
IPC: C09D7/43
Filed: 1994-02-08
Abstract: A novel and improved surfactant modified silica and method for making the same. The surfactant modified silica is characterized as a fumed silica having a surfactant material treated therewith. Also disclosed is process of thickening aqueous systems which includes the addition of an effective amount of a fumed silica having a surfactant material treated therewith.
Patent CA-2155435-A1 (CA)
Title: A bag for dispensing fluid material
Inventor: O'REILLY DANIEL JOSEPH
IPC: G01F11/08
Filed: 1994-02-07
Abstract: A bag (44) for dispensing fluid material (48), comprising a storage portion (50), a dispensing portion (52), a first non-return valve (54) for controlling the passage of the fluid material (48) between the storage portion (50) and the dispensing portion (52), and a second non-return valve (56) for controlling the dispensation of the fluid material (48) from the dispensing portion (52). The first and the second non-return valves (54, 56) have flaps of material formed by sealing during formation of the bag (44). A dispenser (46) containing the bag (44) is also provided.
Patent CA-2156923-A1 (CA)
Title: Circuit and method for extending the safe operating area of a bjt
Inventor: PRENTICE JOHN SANFORD
IPC: H03F1/52
Filed: 1994-02-28
Abstract: A circuit and method for protecting a transistor during operation above the transistor's BVCEO by limiting the reverse base current. The reverse base current is used to adjust the applied base-emitter voltage. Limiting the reverse base current keeps the collector and emitter currents within safe limits and thus extends the safe operating area of the transistor. The invention finds application as an overvoltage sensor and transistor protector circuit and is particularly application to implementation in an integrated circuit. The circuit may be combined with circuits for the protection of a transistor against excessive current and temperature in a high voltage linear regulator.
Patent CA-2157755-A1 (CA)
Inventor: RAMM PETER
IPC: H04N5/351
Filed: 1995-09-07
Abstract: An electronic imaging system is disclosed which provides a very high level of sensitivity to enable imaging of biological and chemical specimens at low light levels. The system includes an integrating cooled CCD camera which has an image intensifier coupled thereto.  With the present invention,  light from the specimen is amplified by the intensifier, and the amplified light is integrated onto the cooled CCD camera over a period of time lasting for at least one second.  At the end of the integration period, the camera is read out to a dedicated controller or imaging apparatus to create a digital image of the specimen.  Frame averaging can be used within the imaging apparatus or controller,  to  improve the  signal  to  noise  ratio  and increase the dynamic range of the camera.   In addition, shading  correction  can  be  applied  to  remove  spatial variations in camera sensitivity, to provide a homogeneous image background.
Patent CA-2163322-A1 (CA)
Title: Method and apparatus for isolating a rotary bushing from a drilling rig floor
Inventor: HOLTBY QUINN
IPC: E21B15/00
Filed: 1995-11-20
Abstract: A method and apparatus for isolating a rotary bushing from a drilling rig floor includes a collar having a top, a bottom, an exterior sidewall and an interior sidewall defining an interior cavity. The collar is secured in position on a drilling rig floor encircling the rotary bushing. Objects are prevented from entering the path of the rotary bushing by the collar. Fluids splashing off the rotary bushing are substantially confined by the interior sidewall within the interior cavity of the collar.
Patent CA-2164387-A1 (CA)
Inventor: CROTTY WILLARD E III
IPC: B60J3/02
Filed: 1995-12-04
Abstract: A sunshade mounting bracket assembly for mounting a sunshade to a vehicle without the use of tools or fasteners.  The bracket assembly includes an outer bracket, an inner bracket, and an elbow to which the sunshade is attached.  The outer bracket is  mountable to an apertured panel such as the sheet metal interior roof of the vehicle.  The inner bracket includes resilient locking prongs which define an interior hollow into which the elbow is inserted.  The resilient locking prongs are structured to be insertable into an opening in the outer bracket.  After their insertion into the outer bracket, the prongs engage the outer bracket when the inner bracket is axially rotated relative to the outer bracket from a first rotational orientation to a second rotational orientation for use.  During their engagement with the outer bracket, the prongs are compressed radially inward to compress the elbow maintained within the hollow, which results in rotation of the elbow relative to the inner bracket being frictionally resisted.  A method of installing the bracket assembly to a vehicle is also disclosed.
Patent CA-2166081-A1 (CA)
Title: Ovulation method
Inventor: CATT MICHAEL
IPC: A61B10/00
Filed: 1994-06-24
Abstract: A method of monitoring the status of a current ovulation cycle of an individual female mammalian (generally human) subject, involving repeated testing of the body fluid concentration of at least one analyte, preferably estrone-3-glucuronide (E3G) of significance in relation to the status of the ovulation cycle, during at least the pre-ovulation phase of the current ovulation cycle of the individual subject, wherein testing for said analyte concentration during the current ovulation cycle conducted at least once during the interval spanning days 1 to 7 inclusive following the onset of menses, to establish a reference concentration value for analyte in the current cycle, and then testing is conducted repeatedly during a plurality of days, preferably commencing at least 5 numerical days in advance of the mean numerical day on which actual ovulation has occurred over one or more previous ovulation cycles in the same individual subject, analyte concentration values obtained during said repeated testing being compared with the reference concentration value to determine whether a concentration change indicative of imminent ovulation is occurring or has occurred since the previous test. The method can be based solely on E3G measurements.
Patent CA-2167849-A1 (CA)
Title: Bulldog miter clamp
Inventor: VERES JOHN
IPC: B25B5/00
Filed: 1996-03-27
Abstract: This tool was designed and developed primarily for use in the picture framing industry. It is a relatively small, manually operated device for making a strong, accurate and aesthetic glue joint when attaching two picture frame members at 90degrees to each other, the ends of each of the members having been accurately cut at an angle of 45 degrees. The tool has a single control knob by which the operator, using his own strength, may apply a high pressure on the glue joint, making the joint much stronger than conventional clamps now in use. The tool is also more efficient since conventional manual clamps have two control knobs and they do not apply any significant pressure on the glue joint. This tool also embodies a vertical clamp which is not available in conventional clamps.
Patent CA-2172661-A1 (CA)
Title: Process for making polyetherester with high aromatic ester content
Inventor: CAI GANGFENG
IPC: C08G63/66
Filed: 1996-03-26
Abstract: A two-step process for making polyetherester resins is disclosed. A low molecular weight polyol reacts with an aromatic dicarboxylic acid in step one to produce a polyester intermediate. In step two, the polyester intermediate reacts with an anhydride or an aliphatic dicarboxylic acid in the presence of an insertion catalyst to produce a polyetherester resin that contains greater than about 10 wt.% of recurring units derived from the aromatic dicarboxylic acid. The polyetheresters are useful for making thermoset resins with excellent mechanical properties and chemical resistance.
Patent CA-2172671-A1 (CA)
Title: Hair setting lotions
Inventor: BLANKENBURG RAINER
IPC: A61K8/31
Filed: 1996-03-26
Abstract: Hair setting lotions comprise A)  0.5 - 20% by weight of a nonionic or anionic homo- or copolymer of at least 70% by weight of N-vinylcaprolactam (polymer A), and B)  0.5 - 20% by weight of a further film-forming polymer (polymer B), selected from the group consisting of polyamides, polyurethanes, and homo- and copolymers of monoolefinically unsaturated monomers.
Patent CA-2174102-A1 (CA)
Title: Reusable re-collapsible container and resealable cap
Inventor: ROBBINS EDWARD S III
IPC: B65D6/12
Filed: 1994-10-04
Abstract: A container (10) and associated cap (32) assembly includes a container body having an open upper end defined by an annular rim (26) having a substantially horizontal uppermost edge surface and a radially outwardly extending bevelled surface. The cap (32) has a top wall, a radially outer depending skirt portion (36) and a radially inner depending skirt portion (38). The skirt portions are connected radially by an internal cap surface which includes a first substantially horizontal surface portion (44) extending radially away from the radially inner skirt; a second downward and outwardly inclined sealing surface portion (46) and a third radiused surface (48) portion connected to the radially outer skirt. The second downwardly and outwardly inclined sealing surface (46) is sealingly engageable with the bevelled surface of the annular rim such that the substantially horizontal uppermost edge surface is axially spaced from the cap top wall upon full threaded engagement between said cap and said container body (10).
Patent CA-2174250-A1 (CA)
Title: Remorque a plate-forme mobile
Inventor: GINGRAS CLEMENT
IPC: B60P3/07
Filed: 1996-04-16
Abstract: Un mécanisme adapté à une remorque qui permet une mobilité de la plate-forme. Ce mécanisme comprend quatre éléments , dont chacun de ces éléments sont reliés à l'une de leurs extrémités, au chassis de la remorque, et les autres extrémités de ces éléments sont reliés à la plate-forme de la remorque. Ces quatre éléments de pivotement sont reliés par des boulons, ayant un diamètre déterminé, permettant un mouvement de rotation; pour ainsi obtenir une élévation de la plate-forme lorsqu'elle est tirée vers l'avant par un mécanisme prévu à cette fin.
Patent CA-2174528-A1 (CA)
Title: Backlighting apparatus employing an array of microprisms
Inventor: BEESON KARL WAYNE
IPC: F21V8/00
Filed: 1994-11-02
Abstract: An improved backlighting apparatus comprising a slab waveguide (6) that accepts light rays generated by a light source (4) and transmits the light rays via total internal reflection. Attached on one face of the slab waveguide is an array of microprisms (28), with each microprism (28) having a light input surface (30) parallel to a light output surface (32) and at least one sidewall (33) tilted at an angle from the direction normal to the surface of the waveguide (6) such that light rays escape from the slab waveguide (6), reflect off the tilted sidewall (33) and emerge from the microprism (28) as a light source substantially perpendicular to the light output surface (32). An array of microlenses may be positioned to accept the output of the microprisms so that the light exiting from the microlenses is substantially more perpendicular. The backlight apparatus is advantageously used as a backlighting means for flat panel electronic displays.
Patent CA-2174991-A1 (CA)
Inventor: JEWELL GLEN A
IPC: F16L1/06
Filed: 1996-04-25
Abstract: Low cost, empty pipeline hold down containers are inexpensively and easily formed. No significant curing time is needed and storage of an inventory of containers is optional. The empty containers are light weight, highly safe to use, and require no mechanical equipment to handle. At a selected installation site, one or more containers are associated or combined with a pipeline and filled with relatively heavy, though inexpensive weight-adding material, such as sand, gravel, soil, or water.
Patent CA-2176809-A1 (CA)
Title: Combustion chamber system having an improved valve arrangement
Inventor: FEULING JAMES J
IPC: F02F1/42
Filed: 1995-05-15
Abstract: An intake and exhaust system for use with international combustion engines that uses two intake valves (14) and one ex-haust valve (16) for each cylinder (12). The three valves are preferably round and spaced around the cylinder centerline in the cylinder head. The two intake valves (14) may be spaced closer to the exhaust valve (16) than to each other. The two intake valves may, alternatively, be spaced closer to each other than to the exhaust valve and two spark plugs (18) may be provided, each lying between an intake valve (14) and the exhaust valve (16). For best results, the two intake valves (14) have substantially equal diameters, with the diameter of the exhaust valve (16) having a ratio to the diameter of an intake valve (14) of from about 1:1 to 1:1:2. The head has three substantially hemispheric depressions (26) each housing one of said valves. Squish areas are preferably provided between each pair of adjacent valves around the combus-tion chamber perpiphery. This invention provides a fast and uniform lean-burn, per-mits use of a high compression ratio and lower octane, unleaded gasoline and pro-vides improved thermal efficiency.
Patent CA-2179914-A1 (CA)
Title: Production of prehydrolyzed pulp
Inventor: TIKKA PANU
IPC: D21C3/02
Filed: 1995-01-23
Abstract: Process for preparing pulp from ligning-containing cellulosic material are disclosed including a prehydrolysis step followed by neutralizing hydrolysate and the prehydrolyzed cellulosic material in the reactor with alkaline neutralizing liquor, removing  the neutralized hydrolysate from the reactor and  delignifying  the neutralized prehydrolyzed cellulosic material with alkaline cooking liquor containing sodium sulfide  and sodium hydroxide.
Patent CA-2181145-A1 (CA)
Title: Reusable mailing pocket
Inventor: LINDENBECK HEINRICH
IPC: B65D27/04
Filed: 1995-11-13
Abstract: A reusable mailing pocket has a sheath with a front wall and a rear wall made of substantially opaque plastic material and an opening for introducing articles to be mailed in the mailing pocket. An address window is cut out in the front wall and is covered on the inner side of the front wall with a transparent layer. The transparent layer extends inside the sheath over at least the inner surface of the front wall and is permanently fixed to the front wall in the area of the address window. A closure flap set on the rear wall may be inserted between the front wall and the transparent layer to close the opening of the mailing pocket.
Patent CA-2182664-A1 (CA)
Title: Electrical cable connector and method of making
Inventor: ATTAL LUCIEN
IPC: H01R13/66
Filed: 1995-02-22
Abstract: A disposable blood pressure sensor assembly (10) includes a blood pressure sensor module (12), an electrical cable (18) extending from the blood pressure sensor module (12), and an electrical connector (20) carried on the electrical cable (18). The electrical connector (20) includes a conductor contact portion (60) of each of the electrical conductors (62) of the electrical cable (18), which conductor contact portion (60) is un-insulated and is arrayed and disposed outwardly on the connector (20) for direct electrical contact.
Patent CA-2182948-A1 (CA)
Title: Successive image display device
Inventor: BILLINGS ZEB
IPC: A63H33/20
Filed: 1995-02-10
Abstract: A device for successively displaying a plurality of images includes a plurality of N overlying panels where N is at least 3. Each of the panels (A, B, C, D) defines a longitudinal series of flexible slats (40) and louvers (42) between the slats, the slats being longitudinally longer than the louvers. The slats of all underlying panels are interleaved through the louvers of all overlying panels, the slats of each panel cooperatively defining one of the plurality of images. Each of the slats of an overlying panel is laterally narrower than the slats of all underlying panels. Knob (76) is provided for moving in turn each of the plurality of panels a length at least equal to the length of a louver such that movement of a given panel in one longitudinal direction exposes the slats of an adjacent overlying panel and conceals the slats of the given panel underneath the slats of an underlying panel. Movement of a given panel in the opposite longitudinal direction exposes the slats of the given panel and conceals the slats of an adjacent overlying panel under the slats of the panel.
Patent CA-2183693-A1 (CA)
Title: Multi-Layer Pipe
Inventor: TOKUI SHIN
IPC: F16L9/12
Filed: 1996-08-20
Abstract: A multi-layer pipe has an innermost layer formed of a butene polymer composition. At least one other layer is formed of a polyolefin resin composition comprising (A) 95-5 parts by weight of a polyolefin resin, (B) 5-95 parts by weight of a filler, and (C) 0.1-10 parts by weight per 100 parts by weight of components (A) and (B) combined of a modified polyolefin resin. This multi-layer pipe undergoes minimal elongation by heat so that it is free from troubles by thermal deformation even when high temperature fluid is passed therethrough, has high rigidity, and is thus suitable as plumbing for cold and hot water.
Patent CA-2184712-A1 (CA)
Title: Treatment of diabetic nephropathy with valsartan
Inventor: DE GASPARO MARC
IPC: A61P13/02
Filed: 1995-03-07
Abstract: The angiotensin II antagonist of formula (I) and the pharmaceu-tically acceptable salts thereof can be used for the therapeutic treat-ment of diabetic nephropathy.
Patent CA-2189063-A1 (CA)
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/66
Filed: 1996-10-28
Abstract: The present invention relates to water-blown integral skin polyurethane foam compositions, molded polyurethane articles, a process of preparing said articles, and an isocyanate composition for use therein. In particular, the invention relates to water-blown integral skin molded polyurethane articles having particularly advantageous physical properties, and compositions useful for producing such articles. In particular, the invention provides a polyurethane composition which has an isocyanate component (a) an isocyanate reactive component (b), a blowing agent comprising water (c), a polyether (d) selected from the group consisting  of polytetrahydrofuran and polyethylene glycol having a number average molecular weight of from 200 to 2000 and optionally, one or more additives (e) from the group consisting of catalysts, chain extenders, oxo alcohols, and mixtures thereof. The composition may be characterized in that the integral skin polyurethane articles made of the composition have a tensile strength of greater than or equal to 450 psi and/or a Taber abrasion (mg loss) of less than 200.
Patent CA-2189417-A1 (CA)
Inventor: ROTEM ERAN
IPC: G11C17/00
Filed: 1996-11-01
Abstract: A   customizable   gate  array   device   including   a customizable  gate  array  portion  and  a  customizable   memory portion.
Patent CA-2189927-A1 (CA)
Inventor: HERCHENBACH PAUL
IPC: F16J15/3276
Filed: 1996-11-08
Abstract: The invention relates to a sealing assembly for the cross member 4 of a universal joint 1, which cross member 4 is non-rotatingly connected to the arm 5 and,  for this purpose, rest on a seat face 15.  The seal 16 comprises two portions 17, 28 of which the first portion 17, by means of an annular recess 21, is divided into a sealing portion 18 and a fixing portion 22.  The second portion 28 embraces the open end face 12 of the bearing bush 8 and, by means of a sealing lip 30, rests on the outer face 29 of the bearing bush 8.  This measure makes it possible for the pretension for fixing the seal 16 on the arm 5 and the pretension of the sealing lips 19 relative to the sealing face 20 to be determined independently of one another.
Patent CA-2194018-A1 (CA)
Title: Digital radio telephone for a digital mobile radio communication system
Inventor: MURATA TAKASHI
IPC: H04B1/40
Filed: 1996-12-24
Abstract: A digital radio telephone of the present invention comprises a radio portion for receiving a radio signal modulated by an encoded digital signal including control information, for demodulating and outputting the encoded digital signal, a control signal processing portion for decoding the demodulated encoded digital signal to obtain the control information, a telephone number information detecting means for detecting whether the decoded control information includes calling party telephone number information, a memory for storing the telephone number information, a time information management means for specifying an incoming time of the telephone number information to output a time information, and a memory management means for recording the telephone number information corresponding to the time information into the memory.