baber/WOPTO huggingface dataset:
Patent CA-2026869-C (CA)
Title: System and method for monitoring drill bit depth
Inventor: CASSO CHRISTOPHER
IPC: E21B47/04
Filed: 1990-10-03
Granted: 1994-05-24
Abstract: ABSTRACT OF THE DISCLOSURE       Methods and apparatus for accurately determining drill bit depth are provided.  A hook load is sampled at a rate of at least 4 Hz and is compared to a low threshold to establish a slips-in condition.  A determination is made retroactively that the drill string stopped moving when the hook load passed through a high dynamic threshold.  On the slips-out procedure, the identical high threshold is used, with movement established when the hook load exceeds the high threshold.  The high dynamic threshold corresponds to the points at which the drill string actually stops and starts moving in the slips-in and slips-out procedures.          The apparatus provided is a drawworks encoder mounting assembly which retrofits an auxiliary brake section of the drawworks or the rotary seal air coupler of a drawworks clutch.  A split ring gear fits around and is secured to the rotating cylinder of the rotory seal air coupler.  The split ring gear is part of a pulley having another gear and a drive belt, such that rotation of the drum and rotorseal air coupler cylinder is translated to a shaft of an encoder coupled to the second gear.  The encoder thereby tracks the rotational movement of the drawworks drum.  At desired times, also provided is a second encoder which is part of a calibrator which, via a calibrator wire, precisely measures the location of the travelling block relative to a known vertical location.  The first and second encoder readings are compared continuously and are used to provide excellent calibrations between the drum rotation and the travelling block movement.
Patent CA-2036266-C (CA)
Inventor: KERKER ROBERT P JR
IPC: G06T15/00
Filed: 1991-02-13
Granted: 1995-09-26
Abstract: A hierarchical data storage schema is provided which associatively links  a master solid object model  in a graphics data processing system to a solid model of a sectioning object.  The associative linking provides the capability of automatically generating sectioned views when  the  master  object  is modified.  These  views  are generated at the operator's request without the necessity of having to apply sectioning objects to each one of the subsequent views.   An interactive facility is provided for creating such structures.
Patent CA-2038888-C (CA)
Inventor: SCHMID GERHARD
IPC: C12N15/12
Filed: 1991-03-22
Granted: 1998-12-29
Abstract: A process for obtaining hirudin derivatives from E. coli secretor mutants which entails: (1) construction of a recombinant vector on which there is located the gene coding for a hirudin derivative directly downstream of a DNA section which codes for a bacterial signal peptide; (2) transformation of an E. coli secretor mutant with the recombinant vector constructed in step (1); (3) cultivation of the transformed cells in a medium; and (4) obtaining the hirudin derivative from the medium; and a recombinant vector which contains one or more copies of a gene construct which codes for a protein consisting of a bacterial signal peptide and of a hirudin derivative, and a hirudin derivative with the N-terminal amino-acid sequence A - (SEQ ID NO: 5) in which A represents Ala, Gln, His, Phe, Tyr, Glu, Ser, Asp or Asn.
Patent CA-2039315-C (CA)
Title: Human hematopoietic stem cell
Inventor: TSUKAMOTO ANN
IPC: A61K35/28
Filed: 1991-03-28
Granted: 2006-08-01
Abstract: Human hematopoietic stem cells are provided by separation of the stem cells from dedicated cells.      The stem cells may than be maintained by regeneration in an appropriate growth medium. Means are provided for assaying for the stem cells as to their capability for producing members of each of the hematopoietic lineages.
Patent CA-2045353-C (CA)
Inventor: SUZUKI KAZUO
IPC: G01N27/16
Filed: 1991-06-25
Granted: 1999-02-02
Abstract: A method of measuring the quantity of an admixture in ready-mixed concrete comprises the steps of collecting volatile components generated from the admixture, measuring the concentration of the collected volatile components, and deriving the quantity of the admixture in the ready-mixed concrete from the measured concentration of the volatile components.  An apparatus for executing this method comprises a detecting probe and a main measuring unit.  The probe includes a gas collecting section and a gas sensor.          The main measuring unit for carrying out arithmetic operations on detected information received from the detecting probe, includes a microprocessor for controlling the operation of the entire apparatus, and a display for displaying the detected information received from the microprocessor.
Patent CA-2046774-C (CA)
Inventor: KAGEYAMA ATSUHISA
IPC: H04N5/14
Filed: 1991-07-11
Granted: 1995-05-16
Abstract: The present invention relates to apparatus for detecting the average picture level of an input image brilliance signal. The output of a first current mirroring circuit used as the load on a differential amplifying circuit, is fed into a smoothing circuit by a second current mirroring circuit.  As a result the direct current voltage of the output and the detection voltage amplitude can be set optionally without causing an offset voltage in the output average picture level voltage, the current flowing through the second current mirroring circuit being zero when APL = 0%.
Patent CA-2051362-C (CA)
Title: Epoxy resin, epoxy resin composition and cured product thereof
Inventor: KAJIWARA YOSHITAKA
IPC: C08G59/06
Filed: 1991-09-13
Granted: 2002-07-09
Abstract: The present invention relates to a novel polyfunctional epoxy resin having two phenolic glycidyl ether groups, one or more of alcoholic glycidyl ether groups and one or more of alcoholic hydroxyl groups in one molecules. The present invention further provides an epoxy resin composition comprising the epoxy resin. The cured product obtained from the epoxy resin composition according to the present invention is excellent in heat resistance, toughness, adhesion property and water proofness, and it is extremely useful for a wide range of application uses such as molding materials, casting materials, laminate materials, coating materials, adhesives and photoresists.
Patent CA-2056373-C (CA)
Inventor: GOTO YUICHIRO
IPC: B29C65/34
Filed: 1991-03-29
Granted: 1998-09-29
Abstract: An electro-fusion fitting includes a body which is provided with a heater including a magnetic alloy unit having a predetermined Curie temperature in the vicinity of a joint surface thereof in a manner that a surface of the heater is exposed on the joint surface. The joint surface of the body is brought into contact with a joint surface of a member to be coupled and, if a high-frequency current is applied to the magnetic alloy unit by electromagnetic induction, the magnetic alloy unit generates heat, and a temperature of the magnetic alloy unit is kept at the predetermined Curie temperature due to a temperature self-control function thereof. Therefore, if the Curie temperature is set at a fusion temperature, the joint surfaces of the body and the member to be coupled are coupled to each other.
Patent CA-2058437-C (CA)
Title: Fe-cu alloy sheet having an alloy structure of high uniformity
Inventor: MIYAZAWA KENICHI
IPC: C22C38/22
Filed: 1991-04-08
Granted: 1999-02-23
Abstract: An Fe-Cu alloy sheet manufactured by a thin plate continuous casting method so as to be used as a material of electronic and magnetic parts.  The alloy sheet has an alloy structure of high uniformity which contains 20 to 90% Cu, 1 to 10% Cr, 0.05 to 10% Mo, and one or more of alloying elements selected from the group consisting of A~, Sc, Y, La, Si, Ti, Zr and Hf whose amount or total amounts are not less than a calcualtion value of the following equation and not more than 10%, the balance being essentially Fe:        (see fig. I) wherein   .alpha. = 1, .beta. = 51 - [% Cu]  (in the case where Cu = 20 to 50%), .beta. = -19 + 0.4 [% Cu]  (in the case where Cu = 50 to 90%).     Boron and/or carbon take substantially the same effects as the above-mentioned elements such as A~.
Patent CA-2059654-C (CA)
Title: Dinitramide salts and method of making same
Inventor: BOTTARO JEFFREY C
IPC: C06B31/00
Filed: 1991-06-14
Granted: 1998-06-16
Abstract: A N,N-dinitramide salt is disclosed having the formula MN(NO2)2 where M is a cat ion selected from the class consisting of a metal ion and a nitrogen-containing ion. The dinitramide salt exhibits high temperature stability, high energy density, and an absence of smoke generating halogens, rendering it useful as an oxidizer in rocket fuels. The dinitramide salts are meltable and pumpable oxidizers which may be used in start-stop rocket engines i nstead of other less stable oxidizers.
Patent CA-2065625-C (CA)
Title: Process for patterning layered thin films including a superconductor layer
Inventor: INADA HIROSHI
IPC: H01L39/24
Filed: 1992-04-09
Granted: 1997-07-01
Abstract: A process for patterning layered thin films comprising a bottom oxide superconductor (1) layer deposited on a substrate (3) and another thin film (2) deposited on the bottom superconductor layer and consisting of insulator, ordinary conductor or oxide superconductor having a different crystal orientation from the bottom superconductor layer. The bottom superconductor layer (1) is subjecting to heat-treatment before another thin film (2) is deposited thereon. The heat-treatment can be carried out under a first condition in ultra high-vacuum at a temperature which is lower than the oxygen-trap temperature (Ttrap) at which oxygen can enter into the oxide superconductor but is higher than a temperature which is lower by 100 °C than the oxygen-trap temperature (Ttrap - 100 °C) or under a second condition in an atmosphere containing oxygen of high purity at a temperature which is higher than the oxygen-trap temperature (Ttrap) but is lower than a film forming temperature of the first thin film of oxide superconductor.
Patent CA-2071606-C (CA)
Inventor: DREIZLER SIEGFRIED
IPC: E04C5/20
Filed: 1992-06-18
Granted: 1997-12-23
Abstract: A spacer for reinforcements has a body made of polymer concrete, with the polymer concrete consisting of a cured plastic material into which aggregates in the form of grains are integrated. The surface is post-treated in such a way that grains project from the surface of said cured plastic material, making possible an intimate chemical and physical bound with a cement paste of a concrete mass in which the spacer is to be embedded.
Patent CA-2074059-C (CA)
Title: Organosilicon compounds
Inventor: MCVIE JAMES
IPC: D06M15/643
Filed: 1992-07-16
Granted: 1999-01-05
Abstract: Organosilicon compounds are disclosed which are multi-functional and possess utility as chain branching agents for aminofunctional polysiloxanes used in the softening of textiles and fabrics.  The organosilicon compounds possess epoxy functionality and may have further alkyl functionality and/or polyalkylene oxide functionality.
Patent CA-2076339-C (CA)
Title: Portable humidifier
Inventor: WANG JUI-SHANG
IPC: F24F6/00
Filed: 1992-08-18
Granted: 2002-10-15
Abstract: A humidifier including a base defining a boiler cavity; a liquid supply supported on the base and having a discharge opening communicating with the boiler cavity and adapted to maintain a given level of liquid therein; and evaporation unit removably mounted on the base and including an electrically energized heater element projecting into the cavity and adapted to induce evaporation of liquid contained thereby, and a vapor passage having a receiving end communicating with the cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from the cavity; and an electrical supply for supplying electrical energy to the heater element.
Patent CA-2080463-C (CA)
Title: Method of manufacturing a coil of a continuous flexible object and enveloping the coil to form a parcel
Inventor: LINDSTRAND ULF
IPC: B65H49/22
Filed: 1991-04-09
Granted: 2002-07-23
Abstract: A method of manufacturing a coil (1) of a continuous flexible object (2), such as cable and line, and enveloping the coil to form a parcel (27) for delivery to a user, said object (2) being coiled onto an axially open, cylindrical sleeve (28) to produce said coil. According to the invention the sleeve (28) is provided with two protective rings (29, 30) and is brought to be fixed by a first tool (9) so that the sleeve (28) is firmly clamped between two parallel side supports (10, 11) and centered by centering elements (24) of the side supports, whereby a first rotatable unit (36) is formed. The cable or line (2) is attached to said first unit (36) and the unit (36) is brought to rotate in a coiling machine (3) so that the cable or line is formed to said coil (1). When the cable or line has been cut, a protective casing (40) is brought to surround the coil (1) between the protective rings (29, 30), and a plurality of bands (4l) are brought to surround the sleeve (28) from the inside thereof, the protective rings (29, 30), the protective casing (40) and the coil (1) enclosed within these parts, without engagement with the side supports (10, 11), after which the bands (41) are thightened and their ends joined in a strong joint to form said parcel (27). A  system is also described for handling the cable or line which is prepared and enveloped in the manner described, as well as tools of the structure described above and cable or line parcels manufactured according to said method.
Patent CA-2081913-C (CA)
Title: Method and apparatus for managing page zero memory accesses in a multi-processor system
Inventor: RYAN ROBERT P
IPC: G06F15/167
Filed: 1991-06-05
Granted: 2000-05-30
Abstract: Apparatus and method for use in a multi-CPU data processing system (10) wherein each CPU (12-18) is coupled to a common bus (20) and through the common bus to a main memory (28). The method and apparatus provides a program, such as an operating system, that is operating upon each of the CPUs access to a page of data within the main memory. Each of the CPUs generates a first address for identifying a memory location or locations within a page of the main memory. The first address is modified as a function of the first address and as a function of an identification of the CPU to generate a second address for identifying a memory location or locations that are either within the same page or within another page of the main memory. The modified address is applied to the memory for accessing the memory location or locations.
Patent CA-2084872-C (CA)
Title: Filter and method for cleaning engine cooling system
Inventor: STURMON GEORGE RILEY
IPC: F02B77/00
Filed: 1991-06-07
Granted: 1999-04-27
Abstract: A method for cleaning and protecting a cooling system (2) of a diesel engine (3) from corrosion and the effects of the corrosive by-products wherein a filter (1) is used to feed a disolved pellet (5) comprising dissolvable cleaning agents and corrosion inhibiting agents into the cooling system. The cleaner consists of chelating agents, surfactants, and anti-foaming agents. The filter (1) is removably inserted in the cooling system (2), and the cleaners and inhibitors dissolve in the coolant to clean and protectively coat the cooling system while the engine is operating. The removed imputities are captured by the filter and filter is replaced within a few weeks with a standard filter containing inhibiting agents. The method thus does not require draining the cooling system to clean the cooling system.
Patent CA-2088139-C (CA)
Title: Level indicating device for a vehicle headlamp
Inventor: DENLEY RONALD S
IPC: F21S8/10
Filed: 1993-01-26
Granted: 2002-10-08
Abstract: The indicating device is adapted to be inserted into a housing on a headlamp frame with a slip fit and, once inserted, is automatically locked into place. The indicating device includes a bubble level having a vial which is molded integrally with a base adapted to be assembled with a spring metal retaining bracket with a slip fit. The retaining bracket coacts with the base to hold the indicating device in the housing and coacts with an adjusting screw to enable the vial to be tilted up-wardly and downwardly to various positions relative to horizontal.
Patent CA-2088892-C (CA)
Title: A portable electric heater deenergized by a tip-over responsive actuator
Inventor: MARINO FRANK
IPC: F24C7/08
Filed: 1993-02-05
Granted: 2001-08-07
Abstract: A portable electric heater including a housing having a rear wall, a substantially planar front wall, a bottom support and a top wall. Retained by the housing are a resistive heating element and an electrical circuit for connecting the heating element to an electrical power source. The circuit includes a switch having a closed condition that connects the heating element to the electrical power source and an open condition that disconnects the heating element from the electrical power source. Included with the switch is a manually operable actuator projecting from the front wall and movable in a single motion between a stable first position producing the closed condition and a stable second position producing the open condition, and wherein the actuator is shaped and arranged to be moved into the second position in response to contact with a substantially planar surface.
Patent CA-2093832-C (CA)
Title: Window assembly and method of making same
Inventor: BAIER BRUCE A
IPC: E06B3/66
Filed: 1993-04-13
Granted: 2003-02-25
Abstract: A window frame member is substantially pre-manufactured leaving only cutting the mortise and tenon ends of the rail and stile frame members along with cutting the glass stop to the required width.      The pre-manufactured frame members include a continuous groove to receive removable glazing panel retention clips. A breather channel opening is cut in the mortise end of the stile frame member avoiding a separate drilling operation. The window frame is versatile and will accommodate multiple window accessories including a muntin grid and light control means such as a blind between two window units. An energy transmittance control system provides a balanced effective control of ultraviolet and near infrared light while maximizing transmission of the visible light. In a three glazing pane window assembly the outer pane includes two transparent silver metal layers while the inner pane includes one silver layer. One silver layer is provided on a stretched polyester film suspended between the outer and middle panes in a krypton filled insulated glass unit.
Patent CA-2094672-C (CA)
Title: Digital oscillator
Inventor: BRUTON LEONARD T
IPC: H03B27/00
Filed: 1993-04-22
Granted: 1999-02-09
Abstract: A digital oscillator generates pairs of sampled sinusoidal signals having precisely established phase relationships, e.g., in near-perfect quadrature.  The digital oscillator has first and second, interconnected multiplying-integrating modules.  Each module has a multiplier for multiplying an input signal by a first coefficient, and a digital integrator for integrating the product over a period of time and thereby generating a different one of the sampled sinusoidal signals.  Setting the multiplier coefficients appropriately controls the amplitudes of the generated sinusoidal signals.  Likewise, the frequencies and phases of the sinusoidal signals are controlled in response to the values of the multiplier coefficients and to the period of integration.  In a preferred embodiment, the first module has a delay free-forward-path ("DFFP") integrator, and the second module uses a delay-forward-path ("DFP") integrator.  In the DFFP integrator, the forward path from input to output within the integrator is substantially delay-free, and a device provides a delay in a feedback path between the integrator input and output.  In a DFP integrator, on the other hand, a device provides a delay in the forward path, and the feedback path is substantially delay-free.  Other versions of the invention provide two pairs of quadrature-related sampled sinusoidal signals.
Patent CA-2094925-C (CA)
Title: Apparatus for the extraction of meat from the tails of crustacea
Inventor: BARLOW GRAHAM FRANCIS
IPC: A22C/
Filed: 1991-07-17
Granted: 1998-01-27
Abstract: The invention relates to apparatus for the extraction of meat from the tails of crustacea such as prawns.  An example of the apparatus described comprises a frame supporting a conveyor means which carry support means in the form of releasable cartridges towards pressure applying rollers between which the cartridges pass.  The lower roller is preferably hollow and apertured so that the meat from prawn tails secured to the cartridges is pressed out of the tail shells and passes through the roller for collection.
Patent CA-2097788-C (CA)
Inventor: ROTHWELL TERRENCE M
IPC: B29C44/46
Filed: 1993-06-04
Granted: 1997-05-20
Abstract: A method for producing foam-filled stud walls includes introducing at least a portion of an unfilled stud wall between a backplate, with the sheathing against the backplate, and a dam having a compressible membrane draped over one face thereof and a removable sheet draped over the compressible membrane for presenting to the studs; moving the dam against the bottom portion of the open side of the stud wall; introducing foam between the backplate and the dam to fill the stud wall therebetween; moving the dam while unrolling the removable sheet and compressible membrane; introducing additional foam to fill a further portion of the stud wall; repeating the two preceding steps on to completion of filling; moving the dam away from the stud wall; and advancing the filled portion of the stud wall from between the backplate and dam.
Patent CA-2102984-C (CA)
Inventor: WENZEL KENNETH HUGO
IPC: E21B4/00
Filed: 1993-11-12
Granted: 1998-01-20
Abstract: A sealed bearing assembly used in earth drilling is described having a first tubular member and a second tubular member telescopically received in the first tubular member. The second fluids member has an interior passage through which drilling fluids pass under pressure from surface pumps.   A clearance space is provided between the first tubular member and the second tubular member defining a lubricant filled sealed chamber.  The sealed chamber has a bit end sealed by bit end seal which faces a drill bit and a pump end sealed by pump end seal which faces surface pumps.  A fixed mechanical seal is disposed in the sealed chamber intermediate the pump end seal and the drill bit end seal.  The mechanical seal divides the sealed chamber into a pump end portion and a drill bit end portion.  The pump end seal is responsive to pressure exerted by drilling fluids pumped along the interior passage by surface pumps.   The drill bit end seal is responsive to pressure exerted by drilling fluids flowing externally to the first tubular member and the second tubular member.The mechanical seal seals a pressure differential between the pump end portion and the drill bit end portion of the sealed chamber.
Patent CA-2108994-C (CA)
Title: Partially-defunctionalized aminoplast curing for polymer compositions
Inventor: REHFUSS JOHN W
IPC: C09D133/06
Filed: 1993-10-22
Granted: 2005-12-20
Abstract: A method of producing a cured coating is described comprising the steps of: (A) applying a coating composition on a substrate, wherein the coating composition is a curable coating composition comprising: (1) a polymer comprising functional groups that are reactive with methylol and/or methyl-alkoxy substituents on the amino nitrogens of an aminoplast curing agent, and (2) an aminoplast curing agent that includes, as substituents on the amino nitrogens: (a) a plurality of methylol and/or methyl-alkoxy substituents, and (b) one or more substituents that are either non-reactive with the functional groups on the polymer or are reactive with the functional groups at a higher temperature than the temperature at which the methylol and/or methylalkoxy substituents are reactive with the functional groups, and (B) curing the coating at a cure temperature sufficient to react the functional groups on the polymer with the methylol and/or methylalkoxy substituents, but below the temperature for reaction, if any, between the functional groups and the (b) substituents.