baber/WOPTO huggingface dataset:
Patent CA-2145187-A1 (CA)
Title: Digital signal processor exciter
Inventor: MARCHETTO ROBERT F
IPC: H03C1/00
Filed: 1993-08-20
Abstract: A digital exciter (30) for selectively modulating digital or analog input data. The digital exciter includes a digital signal modulator (32) and a digital quadrature modulator (DQM) (36) comprising two digital signal processors (DSPs). The signal mod-ulator is controlled by a control (40). An operator can selectively determine whether the digital exciter is used for modulating eith-er two level or four level NRZ digital data and whether the device is to provide linear modulation or frequency modulation (FM) of the input signal. An interpolator (38) interpolates a 66-2/3 kHz timer interrupt rate used in the signal modulator to a 400 kHz rate, thereby reducing the processing load on the DSP comprising the DQM by simplifying the sine and cosine values used in the quadrature modulation. An operator can select from among a plurality of operating parameters on a menu for controlling the sig-nal modulator, either from a local or a remote video display terminal (VDT).
Patent CA-2152860-A1 (CA)
Title: Antenna for communication device
Inventor: CHATZIPETROS ARGYRIOS A
IPC: H04B1/38
Filed: 1995-06-28
Abstract: A diversity handset (100) used in a personal communication system includes a flap (104), a first antenna (108) and second antenna (110).  The second antenna (110) consists of two portions, the first portion being a direct feed portion (202) printed onto a substrate (206), and the second portion consisting of a parasitic radiator (116) located within the flap (104).  The first and second portions (202) and (116) of the second antenna (110) are inductively coupled together between the flap (104) and the substrate (206). Diversity is maintained with the flap (104) open or closed as well as with the flap removed from the handset (100).
Patent CA-2155093-A1 (CA)
Inventor: GREEN DONALD R JR
IPC: H04B1/52
Filed: 1995-07-31
Abstract: A circulator section in a transceiver receives a transmit  signal  and  an  antenna  signal  and provides  them respectively to an antenna and to an electronic switch.  The electronic switch operates synchronously with the duplex mode of the transceiver to connect the antenna to a receiver when the transceiver is in receive mode, and to a matched load when it is in transmit mode. Since the signal path of any portion of the transmit signal reflected by a mismatched antenna is terminated  by  the  load,  power  which  otherwise  might  be reflected back to the transmitter and thereby damage it is instead absorbed by the matching load.
Patent CA-2155236-A1 (CA)
Inventor: SCAROLA LEONARD SEBASTIAN
IPC: C07D491/052
Filed: 1995-08-02
Abstract: A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one monomer present in said polymerization zone.
Patent CA-2156340-A1 (CA)
Inventor: KONDO MITSUJI
IPC: C09K103/00
Filed: 1995-08-17
Abstract: A method for activating smectite clays to give swelling power and/or dispersibility in an aqueous electrolyte solution and resulting activated smectite clays are disclosed, the method comprising previously adding an adequate amount of an aprotic polar solvent having a higher relative permittivity than those of alcohols (e.g., N,N-dimethylformamide, N,N-dimethylacetamide, ethylene carbonate, propylene carbonate or dimethyl sulfoxide) to an aqueous electrolyte solution in which the clays (or the clays previously suspended) are to be swollen and/or dispersed, or treating the clays to be swollen and/or dispersed with the compound.
Patent CA-2156754-A1 (CA)
Inventor: URMSON WILLIAM T
IPC: E01B11/10
Filed: 1995-08-23
Abstract: An insulated rail joint incorporating a spacer-impregnated adhesive  and  a  method  for  bonding  such insulated rail joint.
Patent CA-2157346-A1 (CA)
Title: Ink jet ink refilling method and apparatus
Inventor: SATO OSAMU
IPC: B41J2/175
Filed: 1995-08-31
Abstract: An ink refilling method for an ink container having a porous material capable of producing negative pressure therein and having an ink absorbing portion in a connecting zone with an ink jet recording head, after at least a part of initially contained ink is consumed through the ink absorbing portion includes breaking ink meniscus at the ink absorbing portion of the ink container; supplying the ink into the ink container by a negative pressure produced in the porous material by consumption of the ink, while maintaining fluid communication between the ink absorbing portion and the ink to be supplied.
Patent CA-2158208-A1 (CA)
Inventor: SONG JOO H
IPC: A23G4/00
Filed: 1995-09-13
Abstract: A method of continuously manufacturing chewing gum with improved flavor perception comprises the steps of adding at least an elastomer and filler into a high-efficiency continuous mixer, and mixing the elastomer and filler together in the continuous mixer; adding a least one ingredient selected from the group consisting of fats, oils, waxes and elastomer plasticizers into the continuous mixer, and mixing said ingredient with the elastomer and filler in the continuous mixer; and adding at least one sweetener and at least one flavor into the continuous mixer, and mixing said sweetener and flavor with the remaining ingredients to form a chewing gum composition. These steps are performed using a single high-efficiency continuous mixer and wherein the flavor is added at a level lower than that used to make the same chewing gum composition in a batch mixer but the flavor intensity in the chewing gum product is comparable to that of said same chewing gum composition made in a batch mixer.
Patent CA-2158382-A1 (CA)
Inventor: OSAKA TAKAHIRO
IPC: C09D11/18
Filed: 1995-09-15
Abstract: A non-aqueous ink for a ball point pen is disclosed herein which is accompanied by the feature of the non-aqueous ink excellent in the so-called cap-off performance that a writing performance does not deteriorate even when the pen is allowed to stand, with a cap being removed, and the feature of an aqueous ink that a low writing pressure can be used and blobbing does not occur.  This ink comprises an organic solvent having a vapour pressure of 0.2 mmHg (20°C) or less, a colorant and a coagulant and has a non-Newtonian viscosity index of 0.2 to 0.5 and a viscosity of 200 mPa.s (25°C, 50 rpm) or less.  Furthermore, the ink is characterized by containing an autolyophobic vehicle in which a contact angle to the surface of a material such as stainless steel or bronze having a high surface free energy is in the range of 5 to 40°.
Patent CA-2158881-A1 (CA)
Title: Method for treating fgd waste to produce alpha plaster and sulphur dioxide
Inventor: ROBINSON MURRY C
IPC: C04B11/26
Filed: 1995-09-22
Abstract: A continuous process is provided for producing sulphur dioxide and alpha calcium sulphate hemi-hydrate from calcium sulphite usually produced in a waste material from flue gas desulphurization consisting of treating the calcium sulphite directly to alpha calcium sulphate hemi-hydrate using a range of temperatures from 77°C to 125°C, a range of acidity of 10 percent to 35 percent sulphuric acid and a time of 5 to 120 minutes. The optimum results being achieved when the conditions utilize a temperature that is about 80°C, sulphuric acid content is about 35 percent, and time required is about 60 minutes.
Patent CA-2159165-A1 (CA)
Title: Intumescent silicone rubber composition
Inventor: BREBNER KEITH I
IPC: C09K21/14
Filed: 1995-09-26
Abstract: An intumescent silicone rubber composition is provided having an expandable intumescent material present in the composition by up to 20% by weight, a polyorganosiloxane oil present in an amount from about 10% to about 40% by weight of the composition, a hydrated alkali metal silicate present in an amount: of up to 80% by weight of the composition and a silicone elastomer binder present in an amount from about 4% to about 30% by weight of the composition. The result is a very effective and relatively inexpensive composition which when used as firestop material around combustible pipe, such as PVC or ABS, readily meets the test criteria set forth under ASTM Standard E-814.
Patent CA-2159966-A1 (CA)
Title: Absorbent sanitary device
Inventor: CARLUCCI GIOVANNI
IPC: A61F5/44
Filed: 1995-10-05
Abstract: An  absorbent  sanitary  device  is  provided,  for example  an  incontinence  device  for  use  by  an  adult female, the device having a top side adapted in use to face the user and a back side adapted to face away from the user.   The device is elongate and has a central region and end regions which adjoin the central region and which slope upwardly  from the  central  region as viewed from the top side.   The device is provided with upstanding,  elasticated,  spaced  apart  barriers  which extend longitudinally of the device adjacent laterally opposite side edges thereof and which,  in cooperation with the end regions,  define a user-engaging surface, the barriers being formed by upstanding portions of the topsheet.
Patent CA-2160465-A1 (CA)
Inventor: RUMMLER JOHN M
IPC: C02F9/06
Filed: 1994-04-28
Abstract: A waste water treatment system in which in-coming waste water is initially separated by a sep-arator (10) into solid and liquid components.  The solid waste is then incinerated in a microwave re-actor chamber (12). A dual filter arrangement (26) is provided for removing any suspended solid rem-nants from the liquid component exiting the sep-arator (10). The solid remnants removed by the dual filter arrangement can be incinerated using microwave energy generated by the microwave generators (32). A cylindrical holding tank (42) including n dosing siphon (43) and electrolysis oxidant cell arrangement (46) is provided down-stream of the dual filter arrangement for disinfect-ing the liquid. An ultaviolet polishing cell (48) may be provided downstream of the holding tank to further disinfect the liquid.
Patent CA-2161886-A1 (CA)
Inventor: SATAKE KUNIO
IPC: A61P25/06
Filed: 1994-05-13
Abstract: PCT No. PCT/JP94/00781 Sec. 371 Date Nov. 20, 1995 Sec. 102(e) Date Nov. 20, 1995 PCT Filed May 13, 1994 PCT Pub. No. WO94/26740 PCT Pub. Date Nov. 24, 1994Compounds useful in the treatment of inflammatory disorders, central nervous system disorders and other disorders of the formula I and the pharmaceutically-acceptable salts thereof;    <IMAGE>  (I)  wherein R is C1-C6 alkyl; X is C1-C6 alkyl having one or more substituents which include at least one heteroatom; Ar1 and Ar2 are each, independently, aryl optionally substituted by one C1-C6 alkyl, C1-C6 alkoxy, C1-C6 alkylthio, halogen, cyano, nitro, phenoxy, mono C1-C6 alkylamino, di C1-C6 alkylamino, halosubstituted C1-C6 alkyl, or halosubstituted C1-C6 alkoxy; Y is hydrogen, C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl, Z-(CH2)p-, or W-(CH2)m-CHR2-(CH2)n-NR1CO- wherein Y is at the 4-, 5- or 6-position on the quinuclidine ring; R1 is hydrogen, C1-C6 alkyl, benzyl or -(CH2)r-W; R2 is hydrogen or C1-C6 alkyl which may be substituted by one hydroxy, amino, methylthio, methylmercapto, benzyl, 4-hydroxybenzyl, 3-indolylmethyl or -(CH2)r-W; R1 may form a ring with R2; Z is C1-C6 alkoxy, -CONR4R5, -CO2R4, -CHR4OR5, -CHR4NR5R6, -COR4, -CONR4OR5 or optionally substituted aryl; each W is independently cyano, hydroxymethyl, C2-C6 alkoxymethyl, aminomethyl, mono C1-C6 alkylaminomethyl, di C1-C6 alkylaminomethyl, carboxyl, carbamoyl or C1-C6 alkoxycarbonyl; R4, R5 and R6 are independently hydrogen, C1-C6 alkyl, C1-C6 alkoxy, C3-C8 cycloalkyl or an optionally substituted aryl or heterocyclic group; p is 0 to 6; and m, n and r are each, independently, 0 to 3.
Patent CA-2162424-A1 (CA)
Inventor: VARNEY BRIAN
IPC: F16L55/38
Filed: 1995-11-08
Abstract: A speed controlled pig for use in a pipeline has an essentially hollow housing through which gas or other pipeline liquids can flow from the rear of the housing, through the housing and subsequently out of the housing. A first bonnet, having several openings, is mounted at the front of the housing on a shaft which is oriented parallel to the longitudinal axis of the housing. A second bonnet is mounted on the housing and fits over the first bonnet. The second bonnet has openings which, when aligned with the openings in the first bonnet, permit the flow of pipeline fluids out of the housing. The first bonnet is movable in relation to the second bonnet so as to vary the degree of alignment of the openings in the bonnets. By varying the degree of alignment of the openings in the bonnets, the flow of liquids through the housing is regulated so as to control the speed of the pig. A control module is located in the interior of the housing for controlling the operation of the pig.
Patent CA-2164194-A1 (CA)
Title: Spring brake actuator, caging bolt assembly therefor, and method of assembly thereof
Inventor: STOJIC STEVEN M
IPC: F16B39/02
Filed: 1994-04-01
Abstract: A nut and bolt assembly comprises a threaded bolt (78a) having a proximal end (140) with a knurled outer surface (142). A nut (144) is press fit onto the bolt knurled proximal end (190) to prevent rotation of the nut (144) with respect to the bolt (78a). Preferably, the knurled outer surface preferably comprises axial splines (142). The connection is most useful on the proximal end of a caging bolt (78a) in a spring brake actuator (10) having a hollow actuator rod (60) into which a head (86) at a distal end of the caging bolt (78a) is positioned with the proximal end (140) of the caging bolt (78a) extending out of the brake actuator through a threaded aperture (77) in an end portion of a brake actuator housing (52). A washer (148) can be provided between the nut (144) and the brake actuator housing (52) to prevent foreign material from entering the break actuator housing (52) through the threaded aperture (77).
Patent CA-2165878-A1 (CA)
Title: Process for manufacturing thermosetting resin particles
Inventor: SATO HARUHIKO
IPC: C08L71/02
Filed: 1995-12-21
Abstract: Thermosetting resin particles having a narrow particle size distribution useful for powder coating application are produced by the steps of (a) providing a first water-soluble polymer having a cloud point within the range between 30°C and 90°C and a second water-soluble polymer not having any cloud point; (b) preparing an aqueous suspension in which an organic solvent-containing, liquid thermosetting resin composition is suspended as primary particles of oil droplets in an aqueous suspension medium containing the first and second water-soluble polymers, (c) heating the suspension to a temperature higher than the cloudy point to allow the oil droplets to agglomerate into secondary particles of larger particle sizes, (d) removing the organic solvent contained in the particles during or after step (c) and optionally (e) recovering the particles.
Patent CA-2166055-A1 (CA)
Title: Process for producing amorphous poly-.alpha.-olefins with a monocyclopentadienyl transition metal catalyst system
Inventor: CANICH JO ANN MARIE
IPC: C08F4/659
Filed: 1993-06-24
Abstract: The invention is a catalytic process using a Group IV B transition metal component and an alumoxane component to polymerize .alpha.-olefins to produce amorphous poly-.alpha.-olefins.
Patent CA-2166468-A1 (CA)
Title: Cleansing Compositions Containing an Alkanoate as Conditioner
Inventor: BOWSER PAUL ANTHONY
IPC: A61K8/00
Filed: 1994-08-10
Abstract: A cleansing composition containing water, intended for topical application to skin or hair, includes an ester of a hydroxyalkanoic acid, of structure (I) where R1 is acyl or, preferably H; R2 is H or alkyl, preferably methyl; R3 is alkyl or substituted or interrupted alkyl. In use the ester penetrates into the stratum corneum and is hydrolysed by enzymes to hydroxyalkanoate, which moisturises the skin.
Patent CA-2167875-A1 (CA)
Inventor: LONDON THOMAS B
IPC: H04M3/42
Filed: 1996-01-23
Abstract: A telephone subscriber of a privacy communications service is allowed to use a randomly selected non-assigned telephone number -- instead of the subscriber's real telephone number --as a return phone number in a telephone message left for a called party. The non-assigned, randomly selected telephone number becomes inoperative after a threshold that may be pre-imposed by the subscriber is exceeded. According to a feature of the invention, the function ofrandomly selecting a non-assigned telephone number may also include replacing the calling party number with the randomly selected number. Hence, when a caller-id display unit receives the telephone number of an incoming call for which the privacy communications service is used, the randomly selected telephone number -- as opposed to the real telephone number -- is received and recorded by the caller-id display unit.
Patent CA-2169545-A1 (CA)
Title: Material crushing process and device
Inventor: GIMMY MANFRED
IPC: B02C18/02
Filed: 1994-08-18
Abstract: A material crushing device has a housing in which are housed cutting elements that move towards each other.  The cutting elements consist of comb-like rows of spaced blades that mesh with each other enclosing an upwardly open angle. The blades carry out at the same time a shearing movement and a swivelling movement around an axis by means of a crank mechanism.
Patent CA-2175032-A1 (CA)
Inventor: GOODWIN JOHN C III
IPC: G01S13/74
Filed: 1996-04-25
Abstract: A method of locating an electronic price label in transaction establishments which is based on signal strength measurements. A plurality of receiving antennae are provided for receiving a message from the electronic price label. The location of the electronic price label is determined with reference to the receiving antennae. A computer transmits a query message to the electronic price label. The computer listens for an acknowledgment message from the electronic price label. The computer determines the signal strengths of the acknowledgment message at each of the receiving antennae. The computer determines an estimate of the location of the electronic price label from the signal strengths.
Patent CA-2176882-A1 (CA)
Inventor: ALI IRFAN
IPC: H04L12/56
Filed: 1996-05-17
Abstract: A mode of communication for asset tracking units involves communication between a central station and the individual tracking units, usually through a satellite link. This mode is the primary communication link for tracking the assets. A second mode is the local area network (LAN) or "mutter" mode, in which a subset of tracking units communicate with each other in a mobile LAN. This mode is used as the secondary communication mechanism to conserve power, since mutter mode communication requires much less energy for local communication between the tracking units as opposed to direct satellite communication with the central station. In addition, mutter mode leads to increased reliability of the asset tracking system by enabling tracking of units which have batteries too weak to support communication with the central station, but strong enough to support communication in mutter mode. The mutter mode is also useful in finding tracking units which are not communicating with the central station due primary communication equipment fault or other inhibiting condition.
Patent CA-2177316-A1 (CA)
Title: Anti-skid device for motor vehicle
Inventor: JUTRAS GERMAIN
IPC: B60B39/00
Filed: 1996-05-24
Abstract: This  anti-skid  device  is  designed  to  be  laid particularly on muddy or sandy terrain ahead of and  in engagement with the tread of a motor vehicle driving wheel tire, so that the driving wheel will roll over the device to provide traction over this slippery ground.  The device is made  of  a  series  of  flanged  panels  being  pivotally interconnected in successive pairs by U-shape frames.   The panels and U-frames are of successively decreasing sizes, so that the smaller size frame or panel fits between the legs or flanges of the next larger sized frame or panel.  A ramp is also pivoted at one end of the device.   The panels have a number of upwardly conical bored projections, for providing improved tire traction as well as for enabling flow through engagement of underlying mud or sand to better anchor and stabilize the device on the ground.
Patent CA-2177952-A1 (CA)
Title: Nucleosides and oligonucleotides containing boron clusters
Inventor: SCHINAZI RAYMOND F
IPC: C12Q1/68
Filed: 1994-12-02
Abstract: Carboranyl-containing nucleosides and oligonucleotides are provided for use in boron neutron capture therapy (BNCT) and for other therapeutic and diagnostic purposes.
Patent CA-2180396-A1 (CA)
Inventor: TASHMAN FRED F
IPC: E05B65/08
Filed: 1996-07-03
Abstract: A combination handle and latching mechanism for sliding doors and windows includes a section of a first extrusion, in the form of an elongated base member which is secured to the frame.   Two spaced angled slots are formed through the base member, with a first end near the frame and a second end located a greater distance from the frame when the base member is secured to the frame.  A movable operating member overlies the base member and has rods therethrough and passing through the first and second slots to permit the operating member to be moved from a first position with the rods located in the slots at the end nearest the frame to a second position with the rods located in the slots at a greater distance from the frame to move the operating member from a position near the frame to a position away from the frame.   An inwardly turned latching flange extends along one side of the operating member to overlie an outwardly extending flange adjacent the frame.   When the operating member is in the first position, the sliding door or window is locked against sliding movement.  When the operating member is moved to the second position, the latching flange is pulled away from the frame; so that the sliding door or window may be opened.
Patent CA-2182051-A1 (CA)
Inventor: EWALS GERARDUS LEONARDUS GERTR
IPC: G01K7/16
Filed: 1996-07-25
Abstract: The  invention relates to a  sensor unit  and a temperature measuring system that includes the sensor unit for the contactless determination of the object temperature (Tv) of at least a part of an object.  The sensor unit is placed near the object and includes a first and second plate.  A temperature-sensitive sensor is disposed on each plate to produce first and second sensor signals which represent the temperature of the first and second plates, respectively.  The system also includes a control unit which processes the first and second sensor signals in combination for determining the object temperature (Tv).  Preferably, the control unit employs  a  Kalman  filter.    Also,  the  temperature measuring system is applied to an image reproduction machine to determine the temperature of a roller or belt.
Patent CA-2184429-A1 (CA)
Title: Solid state radiation imager with gate electrode plane shield wires
Inventor: KINGSLEY JACK DEAN
IPC: G01T1/20
Filed: 1996-08-29
Abstract: A solid state radiation imager that exhibits reduced capacitive coupling between pixel photodiodes and readout data lines, and thus further has reduced phantom images or image artifacts, includes a plurality of shield lines disposed at the same level of the device as the scan lines and associated gate electrodes for the switching transistors. The shield lines include respective pixel shielding spurs oriented along the same axis as the data lines and disposed between portions of the pixel photodiode and adjacent portions of the data lines. The shield lines are typically coupled to a shield voltage source such that the shield lines are maintained at a common potential.