baber/WOPTO huggingface dataset:
Patent CA-2098679-A1 (CA)
Title: Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering
Inventor: SOLI SIGFRID D
IPC: H04B3/04
Filed: 1993-06-17
Abstract: ABSTRACT OF THE DISCLOSURE   A noise and feedback suppression apparatus processes an audio input signal having both a desired component and an undesired component. When implemented so as to effect noise cancellation, the apparatus includes a first filter operatively coupled to the input signal. The first filter generates a focused reference signal by selectively passing an audio spectrum of the input signal which primarily contains the undesired component. The reference signal is supplied to an adaptive filter disposed to filter the input signal so as to provide an adaptive filter output signal. A combining network subtracts the adaptive filter output signal from the input signal to create an error signal. The noise suppression apparatus further includes a second filter for selectivelypassing to the adaptive filter an audio spectrum of the error signal substantially encompassing the spectrum of the undesired component of the input signal. This cancellation effectively removes the undesired component from the input signal without substantially affecting the desired component of the input signal. When the present apparatus is implemented so as to suppress feedback the adaptive filter output signal is employed to cancel a feedback component from the input signal.
Patent CA-2100934-A1 (CA)
Title: Identifiable rubber backed product
Inventor: MURRAY JOHN H
IPC: B65C5/00
Filed: 1993-07-20
Abstract: A dust control mat having a pile upper surface and a thermosetting rubber or rubber-like backing to which a thin thermoplastic identification strip or label has been vulcanized thereto.
Patent CA-2101034-A1 (CA)
Title: Quiet check valve
Inventor: POWERS FREDERICK A
IPC: F04B53/10
Filed: 1993-07-21
Abstract: ABSTRACT       This invention represents an improvement in a standard four ball reciprocating piston pump. Such pumps utilize a greatly enlarged seat to provide hydraulic cushioning of the check balls in order to greatly quiet operation. A seat width on the order of 6% of The ball's circumference is preferred. Closely confining the ball to the axis of the seat helps efficient And quiet operation.
Patent CA-2101656-A1 (CA)
Title: Turbine generator pressure relief diaphragm
Inventor: GROENENDAAL JOHN C JR
IPC: F16K17/16
Filed: 1993-07-30
Abstract: ABSTRACT OF THE DISCLOSURE A steam turbine includes a turbine housing oper-able to receive steam and having a relief  opening therein surrounded  by  a  turbine  flange.  A shaft is positioned within said housing and  includes a  plurality of  rows of blades positioned  along the  longitudinal length thereof. A steam inlet pipe  is connected  with the  housing and is operable  as  a  conduit  to  allow the steam entering the housing to pass between said plurality  of rows  of blades to  rotate  said  shaft.    A pressure relief diaphragm is associated with the turbine  housing  and  is  operable to relieve excessive  pressure within  the turbine housing to prevent damage to the turbine blades.  The pressure relief diaphragm  includes  a  safety  housing  having a mounting flange thereon arranged to mate with the turbine flange so that  the  safety  housing  is  positioned over the relief opening in the turbine housing.  A first  solid, frangible solid  disc  covers  the  relief  opening  in  the turbine housing and has a  peripheral  portion  interposed between the mounting  flange on the safety housing and the turbine flange.  A second solid disc  is positioned  in the relief opening in the turbine flange in abutting contact with the first solid disc.  A first plurality of  bolts secures the mounting  flange  on  the  safety  housing  to the turbine flange.  Spring washers associated with  the first plural-ity of  bolts maintain the positional relationship between the safety housing and the  turbine  flange.    An annular ring is  positioned on  the first solid disc and above the relief opening in said turbine housing.  A  second plural-ity of bolts secures the second solid disc and the annular ring to the first solid disc.   Spring  washers associated with  the  second  plurality  of bolts maintains the posi-tional relationship among the first solid disc, the second solid disc and the annular ring.
Patent CA-2103149-A1 (CA)
Title: Improved process for the alkylation of olefins with paraffins
Inventor: SUCIU GEORGE D
IPC: C07C9/16
Filed: 1992-02-10
Abstract: A process for the alkylation of at least one olefin with at least one paraffin in the presence of an alkylation catalyst to produce alkylates wherein the at least one olefin is alkylated with at least one paraffin in the presence of a slurry of catalyst particles. A portion of the catalyst particles is removed during the reaction, and active catalyst particles are added to the slurry.  The process of the present invention is particularly applicable to the alkylation of butenes with isobutane to produce alkylates.
Patent CA-2104043-A1 (CA)
Title: Melanin formation-inhibitory protein, and its preparation and uses
Inventor: FUKUDA SHIGEHARU
IPC: A61K8/00
Filed: 1993-08-13
Abstract: Abstract of the Disclosure A  novel  melanin  formation-inhibitory  protein, which has a molecular weight of 90,000?20,000 and a pI of 5.5?0.5, exerts a tyrosinase formation-inhibitory activity in pigment cells but does not substantially inhibit the inherent  tyrosinase  activity.     Thus  the  protein  is advantageously used as a pharmaceutical and cosmetic in the prevention and/or treatment for local chromatosises such as chloasma,  ephelis  and  sunburn,  as  well  as  systemic chromatosises such as addisonism.
Patent CA-2104463-A1 (CA)
Title: Improved razor blades
Inventor: TRANKIEM HOANG M
IPC: B26B21/60
Filed: 1992-02-20
Abstract: Improved razor blades and methods for producing the blades. The cutting edge regions of the blades include a solid adher-ent coating which is the residue of a heated mixture of a fluorocarbon polymer and a silane. The mixture is applied to the cutting edge regions of the blade and heated to a temperature sufficient to melt the fluorocarbon. The coatings achieved in the practice of the invention provide blades having improved shaving performance characteristics for the blade.
Patent CA-2104579-A1 (CA)
Title: Filter
Inventor: VAN T OOSTEN JANUS A
IPC: F24F8/158
Filed: 1992-05-14
Abstract: A chemisorptive filter e.g. activated alumina or carbon, is held in a chamber (16) between two webs of expanded metal mesh (5, 6) provided with angled perforations. The webs are rigidified in the direction of air flow (4) by a central post joining them. This filter is provided with prefiltering by a mechanical filter layer (19), e.g. polyester polyurethane foam and a layer with both electret and electrostatic activity (21). The chamber (16) may be provided with a window so that any colour change indicative of the remaining capacity of the chemisorptive material can be seen.
Patent CA-2105100-A1 (CA)
Title: Preparation of unsaturated amines
Inventor: WITZEL TOM
IPC: C07C211/22
Filed: 1993-08-30
Abstract: Abstract of the disclosure:  a process for preparing unsaturated amines of the general formula I                           (I), where R1,R2,R3,R4,R5    are hydrogen, C1- to C20-alkyl, C2- to C20-a1kenY1, C3- to C8-cycloalkyl, C3- to C8-cycloalkenyl, phe~nyl, C7- to C20-phenyl-alkyl, C1- to C20-alkoxy, phenoxy, C7- to C20-phenoxyalkyl, C1- to C20-alkylamino, phenylamino, C7- to C20-phenylalkylamino, pyridyl or imidazolyl, or R1 and R2 or R1 and R3 or R2 and R3 together are a C2- to C8-alkylene which is unsubtituted or monosubstituted to pentasubstituted by C1-to C4-alkyl or unsubstituted or monosub-stituted to tetrasubstituted by amino, N-C1- to C8-alkylamino, N,N-C1- to C8-di-alkylamino, hydroxyl, O-C1- to C8-alkyl-amino and/or C1- to C8-alkoxycarbonyl, and X is              =C-N(R4R5) or -C=N-R4, by reacting 2-alkenals of the general formula II                              (II), where R1, R2 and R3 have the abovementioned meanings, with primary or secondary amines of the general formula III                           ( III ), where R4 and R5 have the abovementioned meanings, at from (-20) to 70°C and pressures from 0.01 to 100 bar, by carrying out the reaction without removing the water of reaction and transaminating the product to give the compounds I' and hydrogenating the latter to give novel 1,3-diamines of the general formula IV        (IV),   where R1,R2,R3,R4,R5,R6,R7 are hydrogen,  C1- to C20-alkyl,  C2- to C20-alkenyl, C3- to C8-cycloalkyl,  C3-  to C8-cycloalkenyl,  phenyl,  C7- to C20-phenylalkyl,  C1-  to  C20-alkoxy,  phenoxy,  C7- to C20-phenoxyalkyl,  C1-  to  C20-alkylamino,  phenylamino, C7- to C20-phenylalkylamino, pyridyl or imidazolyl, or R1 and R2 or R1 and R3 or R2 and R3 together are a C2- to C8-alkylene which is unsubtituted or monosubstituted to pentasubstituted by C1- to C4-alkyl or unsubstituted or monosubstituted to tetrasubstituted by amino, N-C1- to C8-alkylamino,  N,N-C1-  to  C8-dialkylamino,  hydroxyl, O-C1- to C8-alkylamino and/or C1- to C8-alkoxycarbonyl, with the proviso that R1 and R2 are not hydrogen if R3 is methyl and R4 and R5, R6 and R7 are in each case hydrogen or methyl, R4 and R6 are hydrogen and R5 and R7 are ethyl and also R4 and R5, R6 and R7 are in each case together (CH2)5 or (CH2)2-O-(CH2)2, is disclosed.
Patent CA-2106231-A1 (CA)
Title: Negative photoresist and a process therefor
Inventor: ESWARAN SAMBASIVAN V
IPC: G03F7/023
Filed: 1993-09-15
Abstract: ABSTRACT      A negative photoresist and a process for the preparation   thereof.      However,   the   negative photoresist  used  developers  normally  employed  for positive  photoresists.  The  photoresist  comprises a  photoactive  compound,  a  novolac  resin  and  a solvent.   The  novolac  resin  is  subjected  to  the step  of  purification  prior  to  it  being  used  in the photoresist.
Patent CA-2106611-A1 (CA)
Title: Sealable electrical interconnection assembly
Inventor: GOTO KAZUHIRO
IPC: H01R13/52
Filed: 1993-09-21
Abstract: ABSTRACT          A sealable interconnection assembly for electrically connecting a conductor on one side of a composite panel, where the interconnection assembly is below or essentially flush with the surface of the composite panel and the conductor, to a lead on another side of the panel through a hole in the panel and over a range in panel thicknesses, wherein a housing is adapted to span the range of panel thicknesses and is sealed within the hole, a contact spans a passageway in the housing to electrically connect the conductor with the lead and a boot encapsulates the contact lead termination so that the contact is sealed from outside contamination.
Patent CA-2107686-A1 (CA)
Title: Puncturing device for aerosol containers
Inventor: CAMPBELL MICHAEL C
IPC: B09B3/00
Filed: 1992-03-31
Abstract: A puncturing device (10) for pressurized containers (12) comprises an elongated housing member (16) defining an elongated cavity (24) with openings:(26, 28) at first and second ends (30, 32) thereof for receiving an inverted pressurized container at the first end, the housing member including a selective attachment member (36) for securing the second end of the housing member to a collection receptable (38). A non-sparking puncturing apparatus (18)with a lever (44) having a built-in stop (48; 50), is movably mounted on the housing member with a pivot-link (54) driven puncture pin (56) extending through an intermediate aperture (34) into the cavity for piercing a nozzle-end of the pressurized container below an internal shoulder (40) thereof with a seal (42). Thus, gases and residual contents are released into the receptacle through the opening in the second end. An auxiliary support member (22) is rotatably mounted on the housing member for stabilizing relative movement between the housing member and the receptacle. A force-applying apparatus (20) is mounted on the housing member for engaging the pressurized container and holding it on the seal.
Patent CA-2110401-A1 (CA)
Title: Method for the selection of genetically transformed cells and compounds for use in the method
Inventor: WHENHAM ROBERT J
IPC: C12Q1/04
Filed: 1992-08-27
Abstract: A method for selecting from a population of cells genetically transformed cells into which a desired nucleotide sequence has been introduced, wherein in the transformed cells the desired nucleotide sequence or a co-introduced nucleotide sequence induces or increases a positive effect of a compound or nutrient supplied to the population of cells, thereby allowing the transformed cells to be identified or selected from non-transformed cells, e.g. for the preparation of genetically transformed plants not containing as a selection marker a non-native nucleotide sequence coding for toxing, antibiotic or herbicide resistance; as well as novel glucuronide compounds, including cytokinin glucuronide compounds; for use in the method.
Patent CA-2110798-A1 (CA)
Title: Multiple-tool bending head for wire bending machine
Inventor: LATOUR YVES
IPC: B21F1/00
Filed: 1992-06-05
Abstract: A cylindrical casing (1) encloses a cage (2) which can rotate, under the action of a geared motor (22), about an axis perpendicular to the wire-passage axis, the cage (2) comprising, at its periphery, shafts (3, 4) sliding in housings (23, 24) in the said cage (2), and each comprising, at their end opposite that carrying the tool (41, 31), a peripheral groove (33, 43) in which passes the internal circumference of a ring (16) which is firmly attached to the casing (1) and to which is fixed a thrust cylinder (13) whose rod (14) can traverse the casing (1) via a slot (15) so as to be able to cause the shaft facing the corresponding housing of the cage (2) to slide, the end of the rod (14) of the thrust cylinder (13) being firmly attached to a cut-out portion (17) of the ring (16), which can be disconnected from the said ring (16), a geared motor (10) enabling, on the other hand, the shafts (3, 4) to be rotationally driven. <IMAGE>
Patent CA-2112783-A1 (CA)
Title: Gas conducting lamp
Inventor: ZHENG YUE
IPC: H05B41/04
Filed: 1994-01-04
Abstract: According to this invention, there is provided a method for starting a gas-conducting lamp, by which a gas-conducting lamp is started directly by a high -voltage without pre-heating of a filament.  Such a high-voltage is realized by an inductor-captor resonant circuit (LC resonant circuit) or a tap of an inductor.  According to this invention, there is also provided a gas-conducting lamp for carring-out the abovementioned method. The method according to this invention is simple and effective and is adapted to the use of a gas-conducting lamp without filament or that with filament which has been broken or has failed.
Patent CA-2114332-A1 (CA)
Title: Medical drain
Inventor: PORAT GADI
IPC: A61M27/00
Filed: 1994-01-27
Abstract: ABSTRACT           A unidirectional surgical drain is described to prevent or minimize the backflow of its contents under atmospheric pressure.  Backflow of surgical drain contents, which may have become contaminated, often occurs during removal of the drain from the body.   In the present invention this leakage and spillage is prevented by means of unidirectional inlets along the tubular  drain  wall  within  the  patient's  body,   and  a unidirectional valve, or a plug at the distal opening of the drain tube.  These inlets enable the body fluids to flow only in the direction from the outside into the inside of the drain tube. The unidirectional inlets may be any medical one-way valve including: cross-shaped incisions, tri-arm-shaped incisions, leaf valves, overlap valves, collapsible tube valves, or any other means permitting flow in only one direction.   This invention applies to drains used with gravity of capillarity systems or with suction vacuum apparatus.
Patent CA-2115529-A1 (CA)
Title: Use of copolymers based on vinyl monomers and carboxylic acid amides as a detergent additive
Inventor: ANTWERPEN WERNER
IPC: C11D3/37
Filed: 1994-02-11
Abstract: ABSTRACT            Use of copolymers based on vinyl monomers and carboxylic acid amides as a detergent additive The present invention relates to the use of copolymers comprising 75 - 95% by weight of the total amount of the monomer of at least one vinyl monomer which is free from carboxyl and amide groups, 5 - 20% by weight of at least one carboxylic acid amide of the formula (I)   in which R    is a hydrogen atom or a methylol radical, R1   is a hydrogen atom or a C1-C3-alkyl radical and R2   is a hydrogen atom or a methyl radical and if appropriate together with not more than 5% by weight of a copolymorizable unsaturated carboxylic acid, as a detergent additive for preventing the reabsorption of detached dyestuffs and dyestuff degradation products.
Patent CA-2118320-A1 (CA)
Title: Production of reproductive hormones
Inventor: BOIME IRVING
IPC: A61K38/24
Filed: 1993-04-30
Abstract: Improved methods for recombinant production of human reproductive hormones are disclosed. These methods involve the use of animal-derived cells that contain regulated secretory granules as host cells for expression systems capable of expressing DNA encoding human reproductive hormones or their .beta. subunits.
Patent CA-2120262-A1 (CA)
Title: Air bag having a high burst strength
Inventor: NAKAGAWA HIDEO
IPC: B60R21/16
Filed: 1993-08-19
Abstract: The air bag of the present invention having an excellent burst strength is formed from substantially circular bottom and top cloths each consisting of a woven fabric, the bottom cloth is reinforced with an apron formed from a woven fabric, arranged around a hole for connecting an inflatar to the air bag and seam-joined to the bottom cloth, the apron has an outermost circumferential seam line in a quadrilateral form such as a substantially regular square, rhombic or rectangular form, preferably a regular square form, having the same center point as that of the inflator-connecting hole, and the outermost circumferential quadrilateral seam line satisfies the requirements (1) and (2): (1) in an imaginary circle having a diameter Dw and drawn around the same center as that at the inflator-connecting hole on the apron in such a manner that at least one pair of vertexes of the outermost quadrilateral seam line, spaced at a largest diagonal distance from each other is inscribed in the imaginary circle, a ratio of each of straight line distance Da and Db between one of the inscribed vertexes and each of two vertexes adjacent to the inscribed vertex to the diameter Dw is 0.6/1 to 0.9/1, and (2) a ratio of each of Da and Db to a diameter De of the circular bottom cloth is 0.5/1 or less.
Patent CA-2121103-A1 (CA)
Title: Device for effecting a gas exchange in multiplate insulating glass units
Inventor: DIETZ RAINER
IPC: E06B3/66
Filed: 1994-04-12
Abstract: ABSTRACT OF THE DISCLOSURE           A  device  for  effecting  a  gas  exchange  in multiplate insulating glass units having sealant spacers, which device consists of a tubular tool, which is sharpened at one end like a plug drill and is provided at the other end with a handle portion, which is provided with a port for connection to an apparatus for effecting a gas exchange. The wall of the tubular tool is provided with openings in that portion which is disposed between the sharpened end and the handle portion.   And a method for effecting a gas exchange in multiplate insulating glass units.
Patent CA-2121118-A1 (CA)
Title: Disc brake with variable width caliper and powered actuation
Inventor: TAIG ALISTAIR G
IPC: B60T13/12
Filed: 1992-10-28
Abstract: The disc brake (100) with variable width caliper and powered actuation comprises first and second bridge members (14, 15) which are connected with a pair of movable members (20, 30) extending over the periphery of the rotor (51). Each of the movable members (20, 30) is mounted upon an anchor extension (37A, 38A). An inboard end of each movable member (20, 30) includes threads (26, 36) upon which is threadably mounted a nut (28, 29). The nut (28, 29) has ratchet teeth (12, 13) on one axial end which engage ratchet teeth (10A, 11A) of an associated actuator sleeve (10, 11) disposed slidably about the movable member (20, 30). Each actuator sleeve (10, 11) includes gear teeth (10C, 11C) about its circumference. The second bridge member (15) is mounted slidably upon the movable members (20, 30). The gear teeth (10C, 11C) of the actuator sleeves (10, 11) are engaged by a powered rack member (110) which includes a double ended piston (117) within a housing (115) defining with the piston (117) a pair of hydraulic pressure chambers (120, 122). The double ended piston (117) includes a connecting arm (125) connecting the piston (117) with a rack (130) of the powered rack member (110) so that hydraulic pressure can effect displacement of the double ended piston (117) and a corresponding lateral displacement of the rack (130). Lateral displacement of the rack (130) effects rotation of the actuator sleeves (10, 11) which, through the engaged ratchet teeth (10A, 11A; 12, 13), causes the nuts (28, 29) to rotate and effect translational movement of the movable members (20, 30). The actuator sleeves (10, 11) engage roller thrust bearings (44, 45) which, as the nuts (28, 29) change their positions along the movable members (20, 30), displace the second bridge member (15) and a friction lining mechanism (16) against the rotor (51), and by reaction, the movable members (20, 30) bring a friction lining mechanism (17) of the first bridge member (14) into engagement with the other face of the rotor (51).  The second bridge member (15) may include one or more bores (50) each receiving therein a piston (52) and actuatable by hydraulic fluid.
Patent CA-2123948-A1 (CA)
Inventor: BENGE S EUGENE
IPC: G08B13/24
Filed: 1994-05-19
Abstract: An improvement in a method for the manufacture of electronic surveillance tags by providing a continuous web of electrically insulative material, applying to opposed surfaces of the electrically insulative material web a succession of first and second electrically conductive coils and applying to the succession of first electrically conductive coils a normally electrically insulative deactivation structure extending across the first coil succession and convertible to be electrically conductive, the improvement comprising the step of providing an electrostatic charge drain in electrically conductive relation with each of the first electrically conductive coils substantially throughout the manufacture of the tags. The new step may be practiced by providing an elongate electrically conductive member across the succession of first electrically conductive coils in electrical continuity therewith.     Alternatively, the step may be practiced by configuring the succession of first coils integrally with the electrostatic charge drain. In either case, the drain is removed in a final stage of tag manufacture. Other improvements are also set forth.
Patent CA-2124125-A1 (CA)
Inventor: FUSS FRITZ H
IPC: E05B47/00
Filed: 1994-05-24
Abstract: A door opener with a pivotable latch for fitting in a door frame, where a door engages in its closed position with a bolt on a locking surface of the latch for fixing the door position in the door frame and which is characterized in that the latch has a latch base and at least one adapting element, the locking surface is formed on the adapting element, the adapting element is connectable to the latch base and the adapting element has a predeterminable thickness for the adjustment of the door in the closed position.