baber/WOPTO huggingface dataset:
Patent CA-2116231-A1 (CA)
Title: Fluorescent tube crusher with particulate separation and recovery
Inventor: PERRY TIMOTHY J
IPC: H01J9/52
Filed: 1991-08-23
Abstract: A digesting system for disposal and separation of the component materials, including potentially toxic materials, from used fluorescent tubes (17), which breaks up fluorescent tubes (17) with a rotating fracture blade (15) while passing a critical amount of stripping air through the fracture zone (23) and countercurrently through a countercurrent flow zone (31) with the fractured glass.  The small dust and powder particulates separated from the glass by the countercurrent air stream are then separated from the air stream by a sequence including an initial cyclone (41) or the like from which particulate material collected may be removed during continued operation and by subsequent fine filter means (51) and a final activated carbon filter (29) to remove metallic vapors.
Patent CA-2116923-A1 (CA)
Inventor: CALUSINSKI RICHARD R
IPC: E01B29/24
Filed: 1994-03-03
Abstract: The present invention relates to a tool (10) used for the removal of retained spring clips on railway tracks. The tool is characterised by a body (12) and a handle (14), the body having clip engaging means (22) adapted to engage outer edges of a retained clip and the handle including means (24) capable of delivering an impact to the body, the clip engaging means being adapted to compress the outer edges of the clip so as to permit passage of the clip through a gate retaining the clip to thereby release the clip. The invention also discloses a protective shroud (30) used to protect an operator of the tool from injury caused by movement of the clip when released.
Patent CA-2121390-A1 (CA)
Title: Multiloop phase-locked loop circuit
Inventor: AOYAMA SYUJI
IPC: H03L7/087
Filed: 1994-04-15
Abstract: PLL circuits which have both the merits of analog phase control, in which good C/N ratio can be realized, and the merits of digital phase control, in which broad-band lock can be performed. The PLL circuit includes a VCO for generating an output signal having a frequency which is variable in accordance with a control voltage; frequency-dividing means for frequency dividing the output signal of said VCO to obtain a feedback signal; reference-signal generating means for generating both a digital reference signal and an analog reference signal, each having a reference frequency first phase error-detecting means for comparing a phase of the feedback signal with a phase of the digital reference signal, to obtain a first phase error signal representing a phase error therebetween and integrating the first phase error signal; second phase error-detecting means for comparing the phase of the feedback signal with a phase of the analog reference signal, to obtain a second phase error signal representing a phase error therebetween, and adding the second phase error signal to the integrated first phase error signal to obtain a first composite phase error signal; third phase error-detecting means for comparing the phase of the feedback signal with the phase of the analog reference signal, to obtain a third phase error signal representing a phase error therebetween, and adding the third phase error signal to the first composite phase error signal to obtain a second composite phase error signal; and a low-pass filter for eliminating high-frequency components of the second composite phase error signal to obtain the control voltage for the VCO.
Patent CA-2121667-A1 (CA)
Title: Differential-transform-coded excitation for speech and audio coding
Inventor: ADOUL JEAN-PIERRE
IPC: G10L19/032
Filed: 1994-04-19
Abstract: A method for coding speech is disclosed. This method, called DTCX (Differential-Transform-Coded Excitation), combines in a new way, the best features of time domain techniques such as CELP (Code-Excited Linear  Prediction)  with  the  best  features  of frequency-domain techniques  such as  TC  (Transform coding) while avoiding their respective drawbacks. The invention   preserves   the   principle   of   error m  i  n  i  m  i  z  a  t  i  o  n     i  n     t h  e perceptually-weighted-speech(/audio) domain which is found in CELP along with techniques such as linear filtering and pitch prediction, yet, it circumvents the  complexity  of  the  CELP  analysis-by-synthesis approach by using quantization.  The invention also takes  advantage of the efficient  frequency-domain differential-quantization   techniques   typical   of transform coding  (TC)  such as spectral decimation, flexible bit allocation as well as numerous forms of stored or algebraic vector quantization techniques. In addition, it is the difference between the current and previous  spectra  which  is  quantized  resulting  in enhanced performance in particular for audio coding. Yet unlike TC, the invention is essentially free from framing problems that plague block transforming of continuous processes.
Patent CA-2121822-A1 (CA)
Title: Computer software protection device
Inventor: PATEL NAVINCHANDRA
IPC: G06F1/00
Filed: 1994-04-21
Abstract: An electronic hand-held device and software which protects computers and/or vendor software against unauthorized entry. The device comprises single or multiple electronic sensors for receiving transmitted light and/or audio signals and electronic circuitry for decoding the signals and an electronic display for viewing the decoded signals. The device uses software which is installed into the computer to direct transmission of the signals which are transmitted through the computer's monitor and/or speakers. The device's sensors are positioned over the computer's monitor and/or speakers to receive the transmitted light and/or audio signals. The intermittent pattern of the transmitted signals sent by the device's software is decoded and displayed by the device as an alphanumeric pass code to the user. The user inputs or uses the computer's keyboard to enter the device's displayed pass code to gain access into the computer and/or vendor's software. Furthermore, the device's software continually changes the transmitted signals or pass code each time the computer and/or software is started.
Patent CA-2124979-A1 (CA)
Title: Methods for inhibiting the corrosion and deposition of iron and iron-containing metals in aqueous systems
Inventor: YORKE WILLIAM J
IPC: C23F11/16
Filed: 1994-06-02
Abstract: ABSTRACT         Methods are provided for inhibiting the corrosion of iron and iron-containing methods in contact with aqueous systems.  Trisodium salt of 2,4,6-trimercapto-5-triazine is added to cooling water systems to inhibit the corrosion of these metal surfaces.
Patent CA-2125774-A1 (CA)
Title: Iodonium salts and process for the preparation thereof
Inventor: HERZIG CHRISTIAN
IPC: C07F7/08
Filed: 1992-12-17
Abstract: PCT No. PCT/EP92/02932 Sec. 371 Date Jun. 8, 1994 Sec. 102(e) Date Jun. 8, 1994 PCT Filed Dec. 17, 1992 PCT Pub. No. WO93/13110 PCT Pub. Date Jul. 8, 1993.The invention concerns iodonium salts of the general formula A-I+-B X-, in which A is a group of the general formula    <IMAGE>  (1)  in which C is a monovalent aromatic hydrocarbon group with 6 to 14 carbon atoms or a monovalent aromatic hydrocarbon group containing at least one oxygen and/or sulphur atom and with 5 to 14 atoms in the aromatic ring, D, E and F are each substituents of C, D being a group of the formula -(O)x-(R)y-SiR1/3, E being a group of the formula -OR2, F being a group of the formula -R3, a being 1, 2, or 3, b being 0, 1 or 2, c being 0, 1 or 2, x being 0 or 1 and y being 0 or 1, and R, R1, R2 and R3 are as defined in claim 1; B is a group of the formula    <IMAGE>  (2)  in which E and F, which are as defined above, may each be bound to the 2, 3, 4, 5 or 6 position in the benzene ring, d is 0, 1 or 2, e is 0, 1 or 2 and X- is a tosylate anion or a weakly nucleophilic or non-nucleophilic anion Y- selected from the group comprising CF3CO2-, BF4-, PF4-, AsF6-, SbF6-, ClO4-, HSO4- and CF3SO3-.
Patent CA-2126040-A1 (CA)
Inventor: SARTORI FRANCESCO
IPC: A46B5/00
Filed: 1994-06-16
Abstract: A versatile broom, brush or similar floor care implement comprises a head anchoring on a first side thereof a multiplicity of bristles presenting a substantially-flat bristle surface, and an integrally-formed connector-mating structure on an opposed second side of the head. The cleaning implement is maneuvered by an elongated handle disposed at a variety of preselected angles. Intermediate the head and handle is a handle interconnector to which the handle is detachably secured at one extremity and a connection assembly is rachetably-pivotably secured at the other extremity. The connection assembly and the integrally-formed connector-mating structure on the head interact so that the handle can be selectively pivoted in a single plane as much as 180 ° or more and locked at any of a number of preselected angles relative to the substantially-flat bristle-end surface.
Patent CA-2126043-A1 (CA)
Title: Centrifugal pump for pumping fibrous suspensions
Inventor: WILSON GEORGE E
IPC: F04D7/04
Filed: 1994-06-16
Abstract: A centrifugal pump of the type adapted to pump high consistency fiber suspensions includes impeller vanes having portions which are immediately adjacent the fiber suspension in the interior of a vessel from which the suspension is to be pumped. The pump additionally includes a sideplate which is mounted directly to the vessel containing the fiber suspension so as to permit the impeller of the pump to be brought in close proximity to the fiber suspension in the vessel. The sideplate additionally includes elongated portions that extend along the outer contour of the vanes of the impeller to determine the directions from which fiber suspension enters the impeller of the pump.
Patent CA-2127106-A1 (CA)
Title: Multi-channel gas sample chamber
Inventor: WONG JACOB Y
IPC: G01N21/35
Filed: 1992-12-30
Abstract: A gas sample chamber (10) for use in a gas analyzer consists of an elongated hollow tube (21) having an inwardly-facing specularly-reflective surface (22) that permits the tube to function also as a light pipe for conducting radiation from a source (12) to a detector (14) through the sample gas. A number of apertures (24) in the wall of the elongated hollow tube permit the sample gas to enter and exit. Particles of smoke and dust of a size greater than 0.1 micron are kept out of the chamber by use of a semi-permeable membrane (28) that spans the apertures in the hollow tube.  Condensation of the sample gas components is prevented by heating the sample chamber electrically to a temperature above the dew point of the component of concern. In one embodiment, more than one detector (40, 42, 44) are spaced around the periphery of the elongated hollow tube adjacent one end of it. In another embodiment, more than one detector (56, 58, 60) are spaced along the length of the elongated hollow tube.
Patent CA-2127531-A1 (CA)
Title: Materials and methods for immunocontraception
Inventor: HARRIS JEFFREY D
IPC: C07K16/00
Filed: 1993-11-06
Abstract: A method for specifically inducing transient infertility or permanent sterility in a host animal by selective vaccination with specific zona pellucida proteins or immunocontraceptively active fragments thereof. Novel zona pellucida DNA sequences encoding specific zona pellucida proteins are disclosed.
Patent CA-2132055-A1 (CA)
Title: Manipulator apparatus
Inventor: PASQUALUCCI JOSEPH
IPC: A61B18/14
Filed: 1994-09-14
Abstract: ABSTRACT OF THE DISCLOSURE A surgical apparatus for manipulating body tissue which comprises a handle member, a generally elongated member extending from the handle member, means positioned on said elongated member for holding a grasping instrument; a channelpositioned in the elongated member for transporting fluid to the distal end portion of said elongated member, and a seal positioned on an outer surface of said elongated member.
Patent CA-2132131-A1 (CA)
Title: 3-arylbenzofuranones as stabilisers
Inventor: NESVADBA PETER
IPC: C07D307/83
Filed: 1994-09-15
Abstract: The invention described novel compounds of formula (see formula I) wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.
Patent CA-2133063-A1 (CA)
Title: Adhesive/mechanical fastener systems for disposable absorbent articles
Inventor: BUELLESFELD DIETER JOSEPH
IPC: A61F5/44
Filed: 1993-03-19
Abstract: The present invention relates to tape tab fastener systems (60) for disposable absorbent articles (20). More particularly it relates to tape tab fastener systems (60) combining mechanical and adhesive tape tab fastener members (62, 63) in a design comprising a grip tab (61) which overlaps with the mechanical fastening member (62) of the tape tab fastener. The invention provides improved handling characteristics, improved construction stability and is preferably compatible with compression packaging.
Patent CA-2136444-A1 (CA)
Title: Animal feeding apparatus
Inventor: BRISBY IAN
IPC: A01K5/02
Filed: 1993-05-24
Abstract: 2136444 9323991 PCTABS00028 An animal feeder designed for use by pigs, having a circular feeding bowl (28) into the centre of which feed is dispensed in response to animal operation. A planar framework above the feeding bowl (28) supports a feed hopper (10) and obstructs the area immediately above the feeding tray to inhibit the rooting out of feed from the tray by the pigs snouts. Growth rates are improved by this competitive feeding arrangement. Alternatively, feedstuff can be supplied by an overhead supply tube.
Patent CA-2139970-A1 (CA)
Title: Refractory for containment of fluoride-rich salt melts
Inventor: SCHNITTGRUND GARY D
IPC: A62D3/00
Filed: 1995-01-11
Abstract: Molten salt process for destruction of fluorine-containing waste in a molten salt such as molten sodium carbonate, and forming fluoride salts in the molten salt bath. The destructive phase change of conventional alpha-alumina refractory of the molten salt retaining vessel in the presence of such fluoride salts is avoided according to the invention by employing phase change resistant betaalumina refractory bricks.
Patent CA-2141040-A1 (CA)
Inventor: NICOLETTI ROSARIO
IPC: C08B37/18
Filed: 1993-07-28
Abstract: Glycogen polysaccharides substantially free of nitrogenous compounds and reducing sugars.
Patent CA-2141882-A1 (CA)
Title: Protected communication method and system
Inventor: YANOVSKY ELI
IPC: G09C1/00
Filed: 1995-02-06
Abstract: A method and apparatus for transmitting encrypted messages between two units, by initializing the two units with respect to each other, and thereafter transmitting the messages between the two units encrypted by means of dynamic random keys which are changed internally within the two units in synchronism with each other, thereby obviating the need for transferring keys or for a master key.
Patent CA-2142922-A1 (CA)
Title: Disposable waste containment garment
Inventor: ROSCH PAULETTE M
IPC: A41D7/00
Filed: 1995-02-20
Abstract: A  disposable  waste  containment  article  includes  a  waste  containment structure that has an absorbent composite which is positioned between the wearer and cover and a pair of containment flaps operatively joined to the waste containment structure.   Methods are provided for making the waste containment article.
Patent CA-2144117-A1 (CA)
Title: System for automatically testing an electronic device during quiescent periods
Inventor: WILEY ROBERT A
IPC: A61N1/08
Filed: 1995-03-07
Abstract: A portable electronic unit, such as a defibrillator, includes an autotest system for automatically self-testing various electrical components within the unit during quiescent periods. The autotest system includes an autotest routine that performs an extensive array of rigorous yet time-consuming tests that are impractical to perform during normal modes of operation of the unit. A real-time clock can be set to initiate the autotest routine at a time when the unit is unlikely to be used for its normal mode of operation. The autotest system provides a strip chart printout of the results of the various self-tests performed on the unit, and provides messages on a visual display of any error conditions. If the autotest system detects a needs service malfunction, the operator must acknowledge the error with an input to the unit before the unit will enter into its normal mode of operation. If the autotest system detects a service mandatory malfunction, the unit will discontinue any normal mode of operation until the malfunction is corrected. The autotest system immediately discontinues the autotest routine upon power-up of the unit by an operator for use of the unit in its normal mode of operation.
Patent CA-2147035-A1 (CA)
Title: Amplified telecommunication system for wavelength-division multiplexing transmissions
Inventor: MELI FAUSTO
IPC: H04B10/17
Filed: 1995-04-13
Abstract: The present invention relates to an optical amplifier and a telecommunication system including a plurality of the optical amplifiers connected in cascade, particularly adapted for a wavelength division multiplexing transmission, in which a combination of dopants in the active fiber core of the optical amplifiers enables a high signal/noise ratio to be achieved for all channels in a predetermined wavelength band, even in the presence of several simultaneously fed signals.
Patent CA-2153766-A1 (CA)
Title: Apparatus for removing hollow articles from a mould
Inventor: PADOVANI PIETRO
IPC: B65G47/90
Filed: 1993-12-27
Abstract: A pick-up and transfer head (1) for hollow objects (10) which is particularly suitable for picking up thermoformed objects from a female die (3) and transferring them to a receiving station (22) in a thermoforming apparatus, which comprises at least one pick-up structure (1) which is designed to engage and support the object (10) or objects to be picked up and transfer them to a supporting and displacement unit (22), and has a flat plate-like (4) or reticular member having at least one seat (5) for the respective object (10) or objects to be picked up and transferred, engaging/disengaging means (6) for the corresponding object (10) located at seat (5) or seats and control means for the said engaging/disengaging means (6) to control the picking-up and release of the object (10) or objects.
Patent CA-2154496-A1 (CA)
Title: Soft and strong thermoplastic polymer fibers and nonwoven fabric made therefrom
Inventor: KOBYLIVKER PETER MICHAILOVICH
IPC: D04H1/54
Filed: 1995-07-24
Abstract: A nonwoven fiber and fabric are provided wherein the fabric has comparable strength characteristics to conventional fabrics yet is softer. The fibers are are a blend of a high crystallinity polypropylene polymer and a random block copolymer of polypropylene and polyethylene.      The fabric of this invention may be laminated to other spunbond layers, meltblown nonwoven fabrics or films.      The nonwoven fabric of this invention may be used iii products such as, for example, garments, personal care products, medical products, protective covers and outdoor fabrics.
Patent CA-2156578-A1 (CA)
Title: Roller bottle for trans-membrane co-culture of cells and method for its use
Inventor: MUSSI EDWARD F
IPC: C12M3/00
Filed: 1995-08-21
Abstract: A roller bottle for trans-membrane co-culture of cells includes an exterior receptacle with a longitudinal axis having a first chamber surrounded by a sidewall. The exterior receptacle has a first neck at one end having an opening therethrough providing fluid access to said first chamber. The roller bottle further includes an interior container with a longitudinal axis and a second chamber, the interior container being located coaxially within the exterior receptacle. The interior container has a second neck at one end providing fluid access to the second chamber. The exterior receptacle is formed from a material that is substantially impermeable to gas and liquid and is sealed in a substantially fluid tight fashion forming the first chamber that has fluid access by the first neck. At least a portion of the interior container is formed from a microporous material. The roller bottle of the invention enables culturing one cell type in the presence of another cell type for the study of interactions between the cells while maintaing a physical separation between the cell types providing a scale up in cell population size from well type inserts. The microporous membrane allows free interchange of media soluble cellular products between the cell types, but maintains physical separation.
Patent CA-2156606-A1 (CA)
Title: Lubricant compositions containing complexes of alkoxylated amine, acid, and adenine
Inventor: HABEEB JACOB JOSEPH
IPC: C10N30/12
Filed: 1994-02-22
Abstract: A composition of matter useful in lubricating oil for reducing friction in an internal combustion engine, said complex comprising the reaction product of alkoxylated amine, acid and adenine and having formula (I), wherein Z is derived from either a hydrocarbylsalicylic acid, trithiocyanuric acid, a hydrocarbylsulfonic acid, a dihydrocarbyldithiophosphoric acid or a dihydrocarbyldithiobenzoic acid and wherein R is a hydrocarbyl group of 2 to 22 carbon atoms, R1 is hydrogen or a hydrocarbyl group of 1 to 20 carbon atoms, x and y are each independently integers of from 1 to 15 with the proviso that the sum of x + y is from 2 to 20, and a, b and c are independent numbers from 1.0 to 3.0 wherein the ratios of a:b, a:c and b:c range from 1.0:3.0 to 3.0:1Ø
Patent CA-2161861-A1 (CA)
Title: Stud locator attachment for a nailing gun
Inventor: MILLER CHARLES D
IPC: G01B5/14
Filed: 1995-10-31
Abstract: A stud locator attachment includes a base member screwed onto a rail assembly of a nailing gun to extend along the axis of the nail cartridge.  A stud locator in the form of an extensible member is slidably mounted to the base member with at least two screws passing through an elongate slot formed in a major length of the locator member. Loosening of the screws enables rearward sliding movement of the locator member along the base member until the forwardmost screw travels into abutment with the forward end of the slot.   The screws are then retightened to fix the locator to the base member.  The lengthwise  dimension of   the   locator  member  is predetermined to define a predetermined distance between the muzzle of the nailing gun and the rearwardmost edge of the locator in extended position to facilitate the accurate location of adjacent studs to precisely drive the nails into the studs at the prescribed intervals.
Patent CA-2162170-A1 (CA)
Inventor: KIEFER GARRY E
IPC: C07F9/38
Filed: 1994-05-04
Abstract: A novel process for the preparation of azamacrocyclic or acyclic aminophosphonate ester derivatives is disclosed. The process concerns the reaction of an appropriate azamacrocyclic or acyclic primary or secondary amine with trialkyl phosphite and paraformaldehyde.
Patent CA-2165041-A1 (CA)
Title: Methods and compositions for synthesis of oligosaccharides, and the products formed thereby
Inventor: WITHERS STEPHEN G
IPC: C07K19/00
Filed: 1995-12-12
Abstract: Mutant glycosidase enzymes are formed in which the normal nucleophilic amino acid within the active site has been changed to a non-nucleophilic amino acid. These enzymes cannot hydrolyze disaccharide products, but which can still form them.      Using this enzyme, oligosaccharides are synthesized by preparing a mixture of an .alpha.-glycosyl fluoride and a glycoside acceptor molecule; enzymatically coupling the .alpha.-glycosyl fluoride to the glycoside acceptor molecule to form a glycosyl glycoside product using the mutant glycosidase enzyme; and recovering the glycosyl glycoside product. Particular enzymes include a mutant form of Agrobacterium .beta.-Glucosidase in which the normal glutamic acid residue at position 358 is replaced with an alanine residue.