baber/WOPTO huggingface dataset:
Patent CA-2025777-C (CA)
Title: Modular traffic signal apparatus
Inventor: PUURITS LEONHARD
IPC: G08G1/095
Filed: 1990-09-20
Granted: 1995-02-21
Abstract: A traffic signal assembly comprising a plurality of modular signal housing units arranged in a row between end units at either end.  A support tube extends rearward of the housing between bores of end units.  The support tube bears major portions of the loading forces acting on the assembly and permits the units to advantageously be made of lesser strength and lower weight construction.
Patent CA-2026755-C (CA)
Title: Carrier wheel hub
Inventor: PINEDA EDUARDO SOTO
IPC: B60B27/00
Filed: 1990-10-02
Granted: 1996-05-07
Abstract: This invention refers to improvements in a carrier wheel hub that forms part of the hauling equipment of a train, by means of dividing such hub into two parts, a hub body and a flange joined with screws, eliminating the fiogure zone that is produced conse-quent to material fatigue in the transition  zone of the flange and the hub body.
Patent CA-2030017-C (CA)
Title: Method and apparatus for lining manhole assemblies and the like
Inventor: WESTHOFF JAMES A
IPC: E02D29/12
Filed: 1990-11-15
Granted: 1995-09-19
Abstract: Cast members are provided with a liner assembly to protect the cast material from corrosion.  The liner assembly is formed of a plurality of curved liner sections having integral joining flanges.  A resilient compressible gasket is arranged between opposing flanges and is provided with at least one flange receiving slot for receiving the flange of one of said liner sections to facilitate assembly thereof.  Fastening means join the opposing flanges to compress the gasket and thereby provide a liquid-tight joint.  Integral flanges are provided at the upper and lower ends of the liner sections to receive a sealant which is squeezed out of the seams formed by the mating sections when joined to protect the cast assembly from corrosion.  The liner sections are formed of a material which is inert to the corrosive influences.
Patent CA-2031065-C (CA)
Title: Removable sump oil pan for an internal combustion engine
Inventor: VOLZ WOLFGANG
IPC: F01M11/04
Filed: 1990-11-28
Granted: 1995-11-21
Abstract: An oil pan for an internal combustion engine has a relatively flat bottom part as well as a deep pan section as the oil sump with a suction pipe of an oil pump extending into the deep pan section.  The deep pan section is designed as a removable oil container.  The oil can thus be changed rapidly and without draining the oil since all the oil is collected in the oil container.  A cover may be provided to close the container when removed from the shallow flat bottom part.  Also, a filter may be mounted in the container and its upper section may be vented to the engine crankcase ventilation system.
Patent CA-2032520-C (CA)
Title: Excitation pulse positioning method in a linear predictive speech coder
Inventor: MINDE TOR BJOERN
IPC: G10L19/10
Filed: 1990-03-09
Granted: 1996-09-17
Abstract: A method for positioning excitation pulses for a linear predictive coder (LPC) operating according to the multi-pulse principle, i.e. a number of such pulses are positioned at specific time points and with specific amplitude. The time points and the amplitudes are determined from the predictive parameters (ak) and the predictive residue signal (dk), by correlation between a speech representa-tive signal (y) and a composed synthesized signal (y). This can provide all possible time positions for the excitation pulses within a given frame interval. According to the proposed method, the possible time positions are divided into a number (nf) of phase positions and each phase- position is divided into a number of phases (f). These phases are vacant for the first excitation pulse. When this pulse has been positioned, the phase determined for this pulse is denied to the following excitation pulses until all pulses in a frame have been positioned.
Patent CA-2033745-C (CA)
Title: Pilot controlled liquid actuated coolant control valves
Inventor: BAUN DANIEL
IPC: B21B45/02
Filed: 1991-01-08
Granted: 1995-05-09
Abstract: Apparatus in a manifold for supplying a pressurized coolant therein to a rolling mill with apertured body members closing said manifold, coolant control valves positioned in a first one of said apertured body members responsive in operation to said pressurized coolant controlled by solenoid operated pilot valves in a second one of said apertured body members spaced from said pressurized coolant by said first one of said apertured body members, spray nozzles on each of said third apertured body members communicating with said coolant control valves, said coolant control valves communi-cating with said pressurized coolant.
Patent CA-2034204-C (CA)
Title: Predictive decoder
Inventor: TANOI TOSHIYUKI
IPC: H04N19/146
Filed: 1991-01-15
Granted: 1995-01-10
Abstract: Abstract of the Disclosure A predictive decoder includes a decoding section, an adder, an inverse quantizer, a processor, and a superposing section.  The decoding section decodes a coded signal to obtain a predictive error signal.  The adder adds the predictive error signal to a local decoded signal and outputs a sum signal.  The inverse quantizer has a plurality of quantization characteristics.  The inverse quantizer receives a control signal for designating one of the plurality of quantization characteristics and the sum signal, selects one of the plurality of quantization characteristics in accordance with the control signal, and performs inverse quantization of the sum signal by using the selected characteristic to obtain an inversely quantized signal.        The processor converts the inversely quantized signal into the local decoded signal.  The noise superposing section receives the control signal and superposes a noise signal on the inversely quantized signal only when the control signal designates a quantization characteristic having a coarse level higher than a predetermined coarse level.  An output signal from the noise superposing means is used as an output signal from the decoder.
Patent CA-2037065-C (CA)
Title: Casing hanger seal assembly
Inventor: BURTON JAMES A
IPC: F16L21/02
Filed: 1991-02-26
Granted: 2000-10-17
Abstract: The present invention relates to an improved seal assembly for sealing between the interior sealing surface of a well housing and the exterior sealing surface of a hanger landed within the well housing and includes a seal body having a pair of outer lips diverging outwardly for. sealing against the housing interior sealing surface and an interior series of annular ridges which have a diameter smaller than the outer diameter of the hanger exterior sealing surface, an upper energizer and a lower energizer for coacting with said lips to move the lips into sealing position and to store the energy of setting to ensure sealing engagement of the lips. In same forms of the invention the energy is stored by virtue of the lips being of a relatively low yield strength material as compared to the energizers which have a higher yield strength. Also, structure is provided in some of the forms of the invention to store both radial and axial lip loading forces.
Patent CA-2038796-C (CA)
Title: Apparatus and method of lowering nox emissions using diffusion processes
Inventor: BREEN BERNARD P
IPC: F23C1/12
Filed: 1991-03-21
Granted: 1999-11-09
Abstract: An apparatus and method for reducing nitrogen oxide emissions from furnace flue gas is provided in which natural gas or other fluid fuel which has little or no fixed nitrogen is introduced into the upper portion of the furnace. The fuel diffuses by laminar or turbulent diffusion into oxygen-rich flue gas where it reacts with oxygen and nitric oxide to form CO2, H2O and N2, thus reducing the nitrogen oxide emissions from the furnace.      In this manner, the amount of nitrogen oxide in the flue gas is reduced. The apparatus and method can be easily applied to new furnaces or retrofitted on existing furnaces.
Patent CA-2039569-C (CA)
Title: Tank and a support housing for supporting a bladder
Inventor: COFFEY MANUS
IPC: B65D6/40
Filed: 1991-04-02
Granted: 1997-05-27
Abstract: A sewage tank comprising an outer shell of plywood which includes a platform for supporting a toilet pan.          An inner lining of a compressible plastics material lines the interior of the outer shell and defines a hollow interior region of variable volume for a bladder for storing sewage.  The inner lining accommodates expansion and contraction of the bladder in the event of freezing and thawing of the contents thereof.  The contents of the toilet pan are discharged into the bladder, and sewage is discharged from the bladder under pressure through a discharge pipe.
Patent CA-2042634-C (CA)
Title: Self-checking circuit arrangement for operation of a searchlight signal
Inventor: DARROW JOHN O G
IPC: B61L5/18
Filed: 1991-05-15
Granted: 1994-11-22
Abstract: TITLE:          Self-Checking Circuit Arrangement for Operation of a Searchlight Signal ABSTRACT         The circuit arrangement of this invention includes a signal searchlight wherein the lamp is in an electrical series circuit with interlock contact switches.  The switches interlock the display color lens such as yellow and green to control the electrical energization of the signal circuit.  Logic control switching devices in a remote wayside control box supply signals through a cable to operate a bipolar device to selectively display the desired color.
Patent CA-2045896-C (CA)
Title: Temperature-regulated liquid animal feeder
Inventor: EWING FREDERICK D
IPC: A01K7/02
Filed: 1991-06-28
Granted: 1993-10-12
Abstract: ABSTRACT      An animal feeder is provided for delivering temperature-regulated liquid feed to one or more animal feed sites.   A refrigerated or heated reservoir stores the liquid feed, and one, two or three conduits lead from the reservoir to a feed dish which has a bowl portion and a heat exchange portion.  A conduit supplies the bowl through a float valve which maintains the liquid in the bowl at a predetermined level.   Conduits also circulate liquid through the heat exchange chamber which serves to cool or heat the solid and/or liquid feed in the bowl.
Patent CA-2050464-C (CA)
Title: Food containing fructose
Inventor: OOHATA KATSUMI
IPC: A23L29/269
Filed: 1991-08-30
Granted: 1997-12-16
Abstract: There is provided a food and drink having a reduced oil, fat, or sugar content yet retaining good gelation properties and good organoleptic properties, etc.  A part of or the whole of gelation materials, low calorie sugars and/or oils and fats is/are replaced with polyfructan.
Patent CA-2051720-C (CA)
Title: Dual access storage and retrieval system
Inventor: SIMON DAVID
IPC: A47B49/00
Filed: 1991-09-18
Granted: 1995-03-28
Abstract: A  storage,   transportation   and   retrieval system,  and accompanying storage racks,  are disclosed for increasing the effective storage capacity of the storage  racks,  providing  simultaneous  access  to  two adjacent  storage  racks,  requiring  less  call-ups  to locate desired items.  The system is so arranged that it can be implemented to occupy less area.   The storage racks are constructed to provide access to its storage area from at least either side of the storage rack.  The system is arranged to move the storage racks in a path which may be of virtually any shape.   A circular or substantially similar path imparts the advantages  of permitting ready access to any two  adjacent  storage racks.
Patent CA-2058344-C (CA)
Title: Method and system for monitoring the admixing of fluent materials
Inventor: CLARK WILLIAM GUY JR
IPC: G01N33/44
Filed: 1991-12-23
Granted: 2005-05-10
Abstract: A method and system for monitoring the admixing of first and second fluent materials that ultimately harden into a solid structure is provided wherein a selected quantity of a particulate tagging substance, whose presence is detectable by a fluctuating electromagnetic field is uniformly dispersed throughout the first fluent material. The system of the invention comprises a means for mixing together the first and second fluent materials, a conduit for conducting a flow of the resulting admixture, a tagged particle detector for detecting the concentration and distribution of the tagged particles in the mixture, and a recycling conduit and valve for recycling the admixture back to the mixing means if the admixture is in any way defective. The method comprises the steps of mixing together the first and second fluent materials, and then monitoring the distribution of the detectable particulate tagging substance throughout the admixture by transmitting the fluctuating magnetic field through it in order to determine the extent to which the materials are uniformly mixed together, as well as their relative ratios. When the admixture of fluent materials hardens into a solid structure, the uniform distribution of the particulate tagging substance throughout the structure advantageously allows it to be inspected for the presence of voids, cracks and discontinuities by the transmission of a fluctuating electromagnetic field through the structure.
Patent CA-2066774-C (CA)
Title: Apparatus and method for soft tissue biopsy
Inventor: PALESTRANT AUBREY M
IPC: A61B10/00
Filed: 1991-08-15
Granted: 1997-05-20
Abstract: An apparatus and method for acquiring biopsy specimens includes an outer cannula (20) having a bevelled distal end (22) and an opposing proximal end (28) having a Luer-type fitting (32). A stylet (34) having a like bevelled distal end (36) is inserted within the outer cannula (20) before the cannula is placed within the patient. Following placement of the outer cannula (20), the stylet (34) is removed, and a biopsy actuator (48) equipped with a biopsy needle (50) is then inserted within the proximal end of the cannula. The distal tip (52) of the biopsy needle is provided with a specimen retaining notch (56). The biopsy actuator (48) in-cludes a mating Luer-type fitting that is releasably attached to the proximal end of the cannula. The biopsy actuator (48) includes a spring-loaded trigger mechanism (68) for advancing the distal end of the biopsy needle (50) to expose the specimen retaining notch, and thereafter rapidly advances the distal end of the cannula to cut tissue prolapsed within the notch. The Luer fittings are then  disengaged, the biopsy actuator is withdrawn, and a second specimen may then be taken by inserting a second biopsy actua-tor in a like manner.
Patent CA-2069268-C (CA)
Title: Method for attenuating undesirable data, such as multiples, using constrained cross-equalization
Inventor: MONK DAVID J
IPC: G01V1/36
Filed: 1992-05-22
Granted: 2001-08-28
Abstract: To eliminate undesirable energy recorded during seismic surveying, a trace that models the undesirable energy on the recorded data trace is prepared. The model trace is first estimated using a suitable technique, such as wavefield extrapolation. Then, the model trace is modified using a best estimate of the amplitude, phase and time delay differences between the model trace and the data trace. The estimated amplitude, phase and time delay differences may be used to design a cross-equalization filter, which is used to cross-equalize the model trace with the data trace.      Alternatively, the best estimate determination may include using a weighted sum of the model trace, its imaginary component, and their derivatives. When weighted and summed together, these components form a cross-equalized model trace that closely approximates the undesirable energy on the recorded data trace. Lastly, the cross-equalized model trace is subtracted from the data trace to substantially eliminate the undesirable energy.
Patent CA-2069494-C (CA)
Title: Piston and drum drive system
Inventor: SECRETAN STANLEY
IPC: B66D1/44
Filed: 1990-11-07
Granted: 2002-06-18
Abstract: A drum and hydraulic power drive system incorporated within the interior of a drum (10) used for reeling cable in and out, a reversible electric motor (20) which drives the drum (10) from the inside through a gearset (26, 28, 38, 40). Also carried within the drum is a hydraulic power generating system (21) including a manifold structure (42), a gear pump (55) driven directly from the opposite end of the reversibly motor (20) operating in a closed hydraulic circuit to supply hydraulic pressure for example to reversibly move a piston (49) in a cylinder (47).
Patent CA-2071252-C (CA)
Inventor: GRANT MICHAEL D
IPC: F17C13/04
Filed: 1992-06-15
Granted: 1998-06-30
Abstract: A natural gas cylinder fitting and solenoid valve includes a solenoid-actuated poppet co-operating with an o-ring clamped to the floor of the valve cavity to selectively prevent or permit the passage of gas between a gas line and a natural gas cylinder.  In an internally mounted embodiment, a fitting body adapted to be engaged in the neck of a cylinder isolates a low pressure region containing the electrical components of the solenoid.
Patent CA-2076130-C (CA)
Title: Drug information request system
Inventor: LLOYD CHRISTOPHER
IPC: G16H70/40
Filed: 1992-08-13
Granted: 1997-10-14
Abstract: The present invention relates to a system whereby a consumer, and in particular a patient, may make a request that information with respect to a drug be transmitted to him or her.  In accordance with the present invention, a doctor may provide a patient with an information request post card.  The information request post card may, in one aspect, for example, have a first information correlation component and a second postal destination component.          The first component may comprise a plurality of correlation groups, each correlation group comprising a said identification symbol and an associated check-off section for being marked so as to designate the said identification symbol, and a consumer identification section for the insertion of postal information of a consumer.  The second component may have a destination information section comprising postal information of a distant site from which information about a drug associated with a designated identification symbol may be transmitted to a consumer using postal information present in said consumer identification section.
Patent CA-2077971-C (CA)
Title: Easily stored infant pillow and blanket
Inventor: BOOK STEVEN C
IPC: A47G9/02
Filed: 1992-09-10
Granted: 1995-04-18
Abstract: An improved easily stored combination pillow and infant blanket that can be used as a pillow when folded and secured by a zipper or  when not  folded and  secured can be used as an infant size blanket. The blanket folds into itself to minimize any sharp edges on  the blanket. New Straps are provided to attach the pillow to another surface to keep the pillow in place.  When unfolded as a blanket  the zipper  is only  on one  side such that the zipper edge does  not detract  from the  use as  a soft  blanket.   When folded in  the pillow  configuration a  strap can be attached for carrying and  for ease  of use as a carrying bag when objects are placed within the folds of the pillow-blanket for transport.
Patent CA-2079409-C (CA)
Inventor: GRIFFITH EDWARD JACKSON
IPC: C03C25/42
Filed: 1992-09-29
Granted: 1997-07-15
Abstract: Nouvelle fibre de verre, particulièrement utile pour la préparation d'articles isolants mis en forme; les fibres portent à leur surface un polymère de phosphate d'aluminium amorphe; ce polymère retient les fibres ensemble leur permettant de retrouver leur forme après une déformation, comme par compression. L'invention présente également une méthode pour la préparation de fibres de verre, où celles-ci sont mises en contact avec un polymère ionique, lequel est ensuite déshydraté pour former un polymère amorphe non hygroscopique.
Patent CA-2079609-C (CA)
Inventor: FLETCHER GERALD M
IPC: G03G15/16
Filed: 1992-10-01
Granted: 2000-02-29
Abstract: An apparatus for enabling a conductive backed photoconductive intermediate transfer member in an electrophotographic printing apparatus with pre-charge and light assist. The printing apparatus includes a toner transfer system having an intermediate transfer belt comprising a highly conductive transparent substrate with a charging device and an illumination lamp. The intermediate transfer belt is pre-charged prior to entering a transfer nip region to generate low or reverse fields therein. Subsequently, the photoconductive layer of the intermediate surface is exposed to light energy to discharge the pre-charge thereon, generating high transfer fields in the transfer nip.
Patent CA-2086423-C (CA)
Inventor: RILEY WILLIAM C
IPC: F04B1/04
Filed: 1991-06-26
Granted: 1999-06-15
Abstract: An adjustable rotor and a radial piston machine which may utilize an adjustable rotor. The rotor has a primary eccentric (2) rotatable with a shaft (1) and a secondary eccentric (3) adjustable in posit ion relative to the primary eccentric (2). The radial piston machine includes a plurality of piston cartridges (5) arranged radially a round the shaft (1) and both high pressure (17) and low pressure (7) fluid distribution systems. Multiple units may be axially coupl ed. A single unit may handle a variety of fluids in various combinations.
Patent CA-2086520-C (CA)
Title: Cast composite materials
Inventor: SKIBO MICHAEL D
IPC: C22C1/10
Filed: 1991-07-12
Granted: 2000-06-27
Abstract: A cast composite material is made from particles and a matrix alloy preselected composition that is difficult to wet to the particles. A wetting alloy having a composition that readily wets the particles is first mixed with the particles under conditions that wet the wetting alloy to the particles. The wetting alloy is selected so that it has no alloying elements in excess of that in the preselected matrix alloy, and preferably with wettability inhibiting elements reduced. After wetting and mixing have been achieved, the remaining alloying ingredients are added to the melt to adjust the matrix to the desired composition. The approach is applicable to cast composite materials containing both reactive and nonreactive particles. Also described is a cast composite material formed from about 5 to about 35 volume percent of particulate reinforcement, e.g. silicon carbide, embedded in an aluminum alloy matrix having from about 8.5 to about 12.6 weight percent silicon. This silicon-containing composite material is particularly well suited for use as a foundry alloy for remelting purposes.
Patent CA-2107641-C (CA)
Title: Non aqueous dispersion ink with improved shelf life, tack and flow
Inventor: AUSLANDER JUDITH D
IPC: C09D11/02
Filed: 1993-10-04
Granted: 2004-12-07
Abstract: Ink formulations have been conceived that result in inks having improved shelf life, tack and flow properties so that problems relating to ink plugging with contemporary ink pads are reduced. Another advantage of the inks is that they have improved paper dust resistance. These inks are made of a coloring material having an organic pigment dispersed in a modified rosin ester or dispersed in a modified rosin ester and triazine formaldehyde aryl sulphonamide resin dispersed in an alkyd oil. The solvent system is preferably composed of non drying solvents such as emollients and high molecular weight glycols.
Patent CA-2111712-C (CA)
Title: Biodegradable, liquid impervious films
Inventor: TOMS DOUGLAS
IPC: C08L101/16
Filed: 1992-06-17
Granted: 2001-07-03
Abstract: Liquid impervious, biodegradable films are disclosed. In particular, the films comprise a blend of an interpenetrated ne-twork of destructurized starch with ethylene/acrylic acid copolymers or ethylene/vinyl alcohol copolymers, and an aliphatic pol-yester such as polycaprolactone. Diapers, sanitary napkins, pantiliners, and the like, containing backsheets prepared from the foregoing materials are also disclosed.