baber/WOPTO huggingface dataset:
Patent CA-2003172-C (CA)
Inventor: MICHAELY WILLIAM J
IPC: C07C39/26
Filed: 1989-11-16
Granted: 2001-01-23
Abstract: Herbicidal compounds of the structural formula (see formula I) wherein X is oxygen or sulfur; R is chlorine or bromine; R1 is hydrogen or C1-C4 alkyl; R2 is hydrogen or C1-C4 alkyl; R3 is hydrogen or C1-C4 alkyl; R4 is hydroxy, hydrogen or C1-C4 alkyl; or R3 and R4 together are carbonyl (=0) with the proviso that R1, R2, R5 and R6 are all C1-C4 alkyl; R5 is hydrogen or C1-C4 alkyl; R6 is hydrogen, C1-C4 alkyl, C1-C4 alkylthio, or C1-C4 alkylsulfonyl, with the proviso that when R6 is C1-C4 alkylthio or C1-C4 alkylsulfonyl. then R3 and R4 are not together carbonyl; R7 is methyl or ethyl; and R8 is (1) halogen; (2) nitro; or (3) R b SO n- wherein n is the integer 0 or 2; and R b is (a) C1-C3 alkyl; and their salts.
Patent CA-2003660-C (CA)
Inventor: TOWNSEND DOUGLAS W
IPC: C23C12/00
Filed: 1989-11-22
Granted: 2000-04-04
Abstract: This invention relates to a process for electrowinning molten aluminum from alumina dissolved in molten fluoride salts which are essentially cryolite. More specifically the process relates to the treatment of aluminum reduction cell drained solid cathode surfaces to make them wetted by molten aluminum metal. This process deposits a coating composed of titanium diboride and titanium carbide on the solid cathode surfaces from supersaturated dissolved elements in electrowon aluminum. The electrowon aluminum wets the coating on the cathode. The coating makes the cathode surfaces resistant to erosion, chemical attack and penetration by the molten aluminum metal, sodium and cryolite electrolyte contained in that cell.
Patent CA-2007977-C (CA)
Title: Sludge pump
Inventor: LETARTE RENE
IPC: F04B7/00
Filed: 1990-01-17
Granted: 1996-04-23
Abstract: A  two-cylinder  pump  for  heavy  flowable  material comprising a pump body with a deck surface, a pair of cylinder bores opening at the deck surface, and a piston reciprocating  in  each  cylinder  bore  in  charging  and discharging strokes.   The pump further includes a valve conduit with an inlet port for the transfer of flowable material between the valve conduit and the cylinder bores, the valve conduit being pivotable about an axis to cause a movement of the inlet port across  the deck surface between  two  operative  positions,  in  each  operative position the inlet port being in register with either one of the cylinder bores.  A fluid operated piston-cylinder assembly is operatively mounted between the valve conduit and the pump body in order to produce a force with a direction generally coincident with the pivotal axis on the valve conduit for urging the inlet port thereof in sealing engagement with the deck surface of the pump body.
Patent CA-2010178-C (CA)
Title: Pulley type speed-shifting device
Inventor: MIYATA HIROFUMI
IPC: F16H7/08
Filed: 1990-02-15
Granted: 1993-07-27
Abstract: ABSTRACT    In  a  pulley  type  speed-shifting  device  with  a  belt trained between a pair of variable speed pulleys, a movable sheave of each pulley is driven by a cam mechanism. Each cam mechanism has a cylindrical cam arranged concentrically with a  rotary  shaft  and  a  cam follower  which  is  arranged concentrically with a  rotary shaft  and carries a rolling body which makes contact with the cam as it is rolling on a cam face. The movable sheave is driven in axial direction by either  the  cylindrical  cam  or  the  cam  follower  rotating around  the  rotary  shaft  and  rotating  relatively  to  the other. As the cam follower makes contact with the cam face through the medium of the rolling body, resistance is small and  the  transmission ratio  can  be  shifted  with  light handling force.
Patent CA-2010700-C (CA)
Inventor: DYKE JOHN
IPC: G06F21/14
Filed: 1990-02-22
Granted: 1996-09-03
Abstract: A host computer add on encryption/decryption printed circuit board includes address and control buffers, data buffer and board decode logic having input and output terminals selectively connected to the host computer and to first ports of a dual port random access memory (DPR) for storing a block of data and addresses and inputting portions of the block of data and addresses into the DPR's memory. A central processing unit (CPU) is connected to second ports of the DPR, and to a CPU RAM, CPU ROM, real time clock, key image buffer, and DES encryption device. The CPU pursuant to commands of the host computer fetches: (1) the encryption/decryption key of the key image buffer and information from the DPR for encryption/decryption by the encryption/decryption device; (2) the name from the host computer and date, time and length of access time for accumulating an audit trail stored in the key image buffer and (3) file, auditor, and supervisor identification keys from key image buffer, and host computer for encryption and after comparison allowing access only to those files associated with these keys. In addition a system station key can be included for encryption and comparison for limiting user access only through an assigned station. A wait generator is connected to the CPU, real time clock and encryption/decryption device for clock synchronization of joint operations.
Patent CA-2011127-C (CA)
Title: Improved performance low pressure end blading
Inventor: DAVIDS JOSEPH
IPC: F01D5/14
Filed: 1990-02-28
Granted: 2000-01-11
Abstract: A method for optimizing thermodynamic performance of a steam turbine by matching a last stage blade flow area to condenser pressure by adjusting blade angular orientation to set gaging to an optimum value. The method is also used to correct incidence by setting blade angular orientation upstream of tho last blade row.
Patent CA-2015057-C (CA)
Title: Recovery of cesium chloride from pollucite ore
Inventor: PILLAI CHITHAMBARATHANU G
IPC: C01D17/00
Filed: 1990-04-20
Granted: 1999-07-27
Abstract: An improved process for recovering purified cesium chloride from a cesium aluminum silicate ore in which the ore is digested with aqueous hydrochloric acid and the silica solids removed to obtain an aqueous acidic digest solution of metal chlorides consisting principally of cesium chloride and aluminum chloride together with other metal chlorides, which includes the steps of evaporating the water from the digest solution to obtain a solid phase mixture of metal chlorides, including cesium chloride and hydrated aluminum chloride; heating the solid phase mixture at a temperature effective for converting the hydrated aluminum chloride to aluminum oxide without decomposing the cesium chloride; extracting the resulting solids with water to obtain an aqueous extract of cesium chloride; and separating the residual solids containing the aluminum oxide to produce a purified extract of cesium chlorides.
Patent CA-2016528-C (CA)
Title: Battery system
Inventor: SOKIRA THOMAS J
IPC: G01R31/36
Filed: 1990-05-10
Granted: 1993-08-17
Abstract: ABSTRACT   A battery system includes a battery pack having a plurality of batteries and electronic circuitry for monitoring battery parameters and producing an analog output signal related to the state of the charge in the batteries.  An attachment is detachably mounted on the battery pack and produces a display indicating the state of charge in the batteries using the analog output signal from the battery pack.          The attachment which includes a bracket and a display unit also serves as connector for connecting the battery pack to the device which is to be powered by the battery pack.
Patent CA-2018835-C (CA)
Title: Animal collar
Inventor: LAPIDUS HERBERT
IPC: A01K27/00
Filed: 1990-06-12
Granted: 1994-05-24
Abstract: ABSTRACT    An animal collar for controlling fleas and ticks which is formed as an elongated strip with fasteners at the ends thereof. The strip is a plastic material with an effective amount of pesticide dispersed therethrough and has a substantial cross section with a breaking strength such that the strip cannot be broken should the animal hang by the collar.  The strip has at least one break point of greatly reduced cross section to provide for a fracture of the plastic strip.  The fracture strength at the break point is deter-mined by a dropped weight of about 60 percent of the weight that would cause fracture in straight gently applied tension.  The collar is described as having two break points, each positioned opposite each other when the collar is fastened around the neck of the animal.
Patent CA-2019952-C (CA)
Title: Clearance take up device for so-called continuous epicycloidal train articulations, and its mounting mode
Inventor: DROULON GEORGES
IPC: B60N2/225
Filed: 1990-06-27
Granted: 1993-12-14
Abstract: A B S T R A C T     The fixed flange with an inner toothing and the mobile flange with an inner toothing cooperate with a double satellite mounted in a ball bearing forming inside a housing for a composite cam. A sufficient excentration is provided between the diameter of the toothings of the double satellite and the intermediate part concentrical to the toothings of the fixed and mobile flanges so as to allow the composite cam made of two symmetrical and identical parts normally separated from one another at their upper portion by a spring which 18 slightly under tension and at their lower portion by a finger rigidly connected to an intermediate circular part mounted in bearing in the mobile and fixed flanges.
Patent CA-2022655-C (CA)
Title: Number conversion apparatus
Inventor: PRIEM CURTIS
IPC: H03M7/24
Filed: 1990-08-03
Granted: 1994-04-05
Abstract: ABSTRACT OF THE DISCLOSURE   A matrix arithmetic circuit including a first number translating circuit having apparatus for translating numbers in a first number format to numbers stated in Modulo 256 with multiple tap points number format, and apparatus for manipulating numbers based in Modulo 256 with multiple tap points number format utilizing conventional matrix transformation operations.
Patent CA-2030421-C (CA)
Title: Agent for treatment of cerebrovascular contraction
Inventor: KIKUCHI HARUHIKO
IPC: A61K31/40
Filed: 1990-11-21
Granted: 1995-10-31
Abstract: An agent for the treatment of cerebrovascular contraction comprising as an effective ingredient a p-guanidinobenzoic acid derivative represented by the formula   wherein R denotes a group represented by the formula   or a group represented by the formula   or a pharmaceutically acceptable salt thereof.
Patent CA-2030725-C (CA)
Title: Metal housing for electrical connector
Inventor: JAMET DANIEL
IPC: H01R13/658
Filed: 1990-11-23
Granted: 2000-05-16
Abstract: A metal housing for an electrical connector such as a standardized HE12 connector comprises two half-housings enclosing a connector plug adapted to be inserted into a socket. Each half-housing comprises a half-hinge and an orifice having a contour which is open when the two half-housings are open to enable insertion of cables and which is closed when the two half-housings are closed. Fork-shape projections in each half-housing constitute two insulation-displacement contacts for establishing an electrical connection between the half-housing and the screening braid of each cable and to prevent the cable being pulled out. Tangs in each half-housing are inserted in insulation displacement contacts when the two half-housings are closed to constitute electrical screens preventing electromagnetic interference between nearby contacts. A captive screw constitutes both a rotation spindle for the hinge and means for fixing the housing to a nut fixed to the chassis. The housing protects the connector against electromagnetic interference.
Patent CA-2032559-C (CA)
Title: Endothelin antagonistic cyclic pentapeptides
Inventor: ISHIKAWA KIYOFUMI
IPC: A61K38/00
Filed: 1990-12-18
Granted: 2001-11-06
Abstract: 1. A cyclic pentapeptide of the formula: cyclo (-X1-X2-X3-X4-X5-)~ (I) wherein X n (n = 1-5) represent amino acid residues, respectively, and X1 is DPhe, DTyr, DTha, DTza, DNal, DBta, DTrp, DTrp(O), DTrp(CHO) or DTrp((CH2)m COR1) (wherein m is from 0 to 6, and R1 is a hydroxyl group, a C1-C6 alkoxy group, an amino group or a C1-C6 monoalkylamino group, provided that when m = 0, R1 is not a hydroxyl group), X2 is DAsp, DGlu or DCys(O3H), X3 is Pro, Hyp, Pip, Thz, .beta.Ala, Or Gly, Ala, .alpha.Aba, Aib, Val, Nva, Leu, Ile, aIle, Nle, Met, Met(O), Met(O2), Phe, Tza, Tha, Tyr, Trp, His, Arg, Lys, Lys(CHO), Orn, Orn(CHO), Asn, Gln, Asp, Glu, Cys(O3H), Cys, Ser or Thr wherein a hydrogen atom on the .alpha.-amino group may be substituted by a C1-C6 alkyl or C3-C7 cycloalkyl group which may have an optional group selected from the group consisting of an imidazolyl group, a carboxyl group, a sulfo group and a hydroxyl group, X4 is DAla, DThr, D.alpha.Aba, DVal, DNva, DLeu, DIle, DaIle, DNle, DtertLeu, DCpg, DChg, DDpg, DPen, Aib, Ac3c, Ac4c, Ac5C, Ac6c, Ac7c, or DPhg, DThg, DFug, DTzg or DItg wherein a hydrogen atom at the .alpha.-position may be substituted by a C1-C3 alkyl group, X5 is Pro, Pip, Thz, or His, Ala, aAba, Val, Nva, Leu, Ile, aIle, Nle, Met, C3al, Coal, C5a1 or C6al wherein a hydrogen atom on the .alpha.-amino group may be substituted by a C1-C6 alkyl group; or a pharmaceutically acceptable salt thereof.
Patent CA-2035317-C (CA)
Title: Needled suture
Inventor: SHAVE WILLIAM H
IPC: A61B17/06
Filed: 1991-01-30
Granted: 1998-07-07
Abstract: A needle-suture combination (10) employing a heat shrunk sleeve (22) to attach a needle (12) to a suture (14).  One or more heat shrunk sleeves might also be incorporated into the combination to provide a controlled release suture or to provide a linked tandem suture.
Patent CA-2037972-C (CA)
Title: Arrangement and method for selecting an available communication channel for a cordless telephone
Inventor: FRENKIEL RICHARD
IPC: H04M1/72511
Filed: 1991-03-11
Granted: 1994-06-14
Abstract: Abstract of the Disclosure A channel scanning arrangement for automatically selecting an available one from multiple communication channels with a minimum probability of interference and without delay is provided for a cordless telephone. This arrangement avoids causing and receiving interference on a channel by scanning all available channels when the cordless telephone is not in use and prioritizing these channels in the order of most recent observed activity. When a user of a handset unit associated with the cordless telephone desires to communicate with a base unit, also associated with the telephone, the handset and base units communicate briefly on the last used channel. When communication between the handset unit and the base unithas been established, the base unit moves and also causes the handset unit to move to the channel that has been unused by any other cordless telephone for the longestperiod of time.
Patent CA-2038749-C (CA)
Inventor: GIOMETTI PAUL FRANCIS
IPC: F02N15/06
Filed: 1991-03-21
Granted: 1997-11-18
Abstract: A centrifugally disengageable engine starter gear of the positive shift type that has a clutch to provide for driving and indexing of the starter gear, an internal mechanism keeps the clutch teeth in engagement during the indexing function, and a centrifugal separator separates the clutch teeth in an overrunning condition.  The separator includes a plurality of flyweight members disposed in a like plurality of flyweight recesses provided in a driven member of the clutch.  Radial displacement of the plurality of flyweights axially displaces a thrust washer to separate the clutch teeth.  A projection extending longitudinally from each web which separates the flyweight recesses prevents the flyweight members from disengaging from the flyweight recesses during an overrunning mode.
Patent CA-2046143-C (CA)
Title: Improved zeolite catalysts suitable for hydrocarbon conversion
Inventor: HALL ANTONY HAROLD PATRICK
IPC: C07C15/02
Filed: 1991-07-03
Granted: 2001-01-16
Abstract: A novel catalyst composition comprising a crystalline aluminosilicate having a molar ratio of silica to alumina of at least 5:1, the aluminosilicate carrying gallium and copper, is useful in the conversion at elevated temperature of a C2 - C12 hydrocarbon feedstock into aromatic hydrocarbons.
Patent CA-2052831-C (CA)
Title: Surface modified surgical instruments, devices, implants, contact lenses and the like
Inventor: OSBORN DAVID C
IPC: A61F2/00
Filed: 1991-10-04
Granted: 1998-02-10
Abstract: Improved medical devices and instruments prepared by an improved method of producing hydrophilic, gamma-irradiation or electron beam-irradiation induced polymerized and chemically grafted coatings or plastic surfaces of articles adapted for contacting living tissue, the improvement comprising carrying out the graft polymerization in an aqueous solution under specific combinations of the following conditions:    1) monomer concentration in the range of from about 0.1% to about 50%, by weight;    2)   total gamma or electron beam irradiation dose in the range of from about 0.001 to less than about 0.50 Mrad: and 3)   gamma dose rate in the range of from about 10 to about 2500 rads/min or electron beam-irradiation dose rate in the range of from about 10 to about 10 8 rads/min.
Patent CA-2053988-C (CA)
Title: Selective control of window related overlays and underlays
Inventor: BEATTIE IRENE
IPC: G09G5/06
Filed: 1991-10-22
Granted: 1995-12-12
Abstract: Apparatus and methods for selectively controlling by window  the number  of  overlay  planes,  the  number  of overlay palettes, and the overlay/underlay plane masks in a  graphics  video  display  system.   A  logic/multiplex control  translates  overlay and underlay data patterns from a multiple plane VRAM,  referenced to the graphics system frame buffer, into window specific patterns. The window related translation is conveyed to conventional RAMDACs for raster  scan synchronized digital-to-analog conversion.    The   translation   as provided  by  the controller  is  responsive  to  data  selectively  and dynamically written into a random access memory,  thus providing  translation  of  overlay/underlay  data  into window distinct and selective overlay/underlay palette functions.
Patent CA-2060344-C (CA)
Title: Control device for work machine
Inventor: AOKI KANJI
IPC: B66F9/20
Filed: 1992-01-30
Granted: 1995-11-21
Abstract: When control output is determined by selecting the limit controlled variable of work machine lever at the start of operation, the limit controlled variable is corrected by shifting the limit table. Also, the limit controlled variable is determined by nonlinear correction made partially on the limit table.
Patent CA-2060534-C (CA)
Title: Microbiological process for the production of 6-hydroxypicolinic acid
Inventor: KIENER ANDREAS
IPC: C12R1/01
Filed: 1992-02-03
Granted: 2001-04-03
Abstract: A microbiological process is disclosed for the production of 6-hydroxypicolinic acid starting from picolinic acid and/or a salt thereof. The concentration of picolinic acid and/or salt thereof is selected so that the 6-hydroxypicolinic acid is not further metabolized upon formation. The process is performed either by using microorganisms of the genus Pseudomonas, Bacillus, Alcaligenes, Aerococcus, or Rhodotorula, or with a biomass able to use picolinic acid and grow with picolinic acid as the sole carbon, nitrogen and energy source.
Patent CA-2063845-C (CA)
Title: Antenna unit for portable wireless apparatus
Inventor: TOKO YOSHIO
IPC: H01Q1/10
Filed: 1992-03-24
Granted: 1996-11-12
Abstract: The present invention relates to the constitution of an antenna for portable wireless apparatus, and has an object to provide an antenna unit capable of operating satisfactorily when the antenna element is extended out of the case and stowed in the case as well.          A portion of the antenna element not stowed in an antenna stowage pipe when the antenna is pushed into the plastic case, functions as a radiation element.  A portion of the antenna element and an antenna stowage pipe produced of a metal for stowing this portion constitute an impedance stub circuit.  Antenna impedances of the antenna element in the extended and stowage positions as well can be made approximately the same by properly setting the length of the antenna element which is stowed in the antenna stowage pipe and the length of the portion not stowed in the stowage pipe.
Patent CA-2065954-C (CA)
Title: Apparatus for transporting products, particularly packaged food products, from a product loading station to a product unloading station
Inventor: FONTANESI ENZO
IPC: B65G35/06
Filed: 1992-04-14
Granted: 1998-02-24
Abstract: In  an   apparatus  (10)   for   transporting packaged food products from  a product loading  station (A) to an unloading  station (B), series of  containers (20) are entrained by a drive arrangement (12) along  a closed-loop path and temporarily halted at the  loading station (A) and the  unloading station (B) for loading the products onto the containers (20) and unloading the products from the  containers (20), respectively;  each container (20) has a hitch  member arranged to rest  on the drive arrangement (12) in a freely slidable  manner therealong and, disposed in the closed-loop path, there is at  least one  accelerating device  (25) applying  a force to each container (20) effective to impose on the container (20)  an  acceleration with  respect  to  the speed of the drive arrangement (12).
Patent CA-2067605-C (CA)
Title: Process for preparing benzo(a)pyrene-free, carbon-containing, refractory ceramic materials
Inventor: KLOBETA GUNNAR
IPC: C04B35/01
Filed: 1992-04-29
Granted: 1996-09-03
Abstract: The present invention provides a process for preparing a benzo(a)pyrene-free, carbon-containing, refractory ceramic material for preparing ceramic preforms.
Patent CA-2067662-C (CA)
Title: Transition coupling for pipes
Inventor: GLOVER CHARLES JOSEPH
IPC: F16L19/08
Filed: 1992-04-30
Granted: 2004-06-29
Abstract: A transition coupling for connecting a plastic natural gas supply pipe to a metal service pipe is comprised of substantially plastic components including a tubular non-metallic body and a non-metallic or plastic nut. A plastic nut is threadably connected to the body one at each end thereof for independently compressing seals within the body against the two pipes and separately gripping against the pipes to hold the pipes within the body. At one end of the couplings a plastic gripper is wedged by the plastic nut to embed in the plastic pipe to anchor the plastic pipe in the coupling. At the other end of the coupling, a metallic gripper is used in conjunction with the other plastic nut to be wedged against and embed in the outside surface of the metal pipe. The metallic gripper is comprised of two segments, the outer surfaces of which are shaped to keep from embedding in the inside surface of the plastic nut and causing the nut to bind on the metallic gripper.
Patent CA-2073737-C (CA)
Title: A process for producing stable, low oder s,s,s-tributylphosphorotrithioate
Inventor: NEWALLIS PETER E
IPC: C07F9/17
Filed: 1992-07-13
Granted: 2003-01-07
Abstract: Stable S,S,S-tributylphosphorotrithioate having reduced levels of the odorous by-product dibutyl disulfide is produced by adding a caustic solution having a concentration of less than 10% to crude S,S,S-tributylphosphorotrithioate until the pH remains constant. In a preferred embodiment, a solution of sodium hydroxide having a concentration of less than 10% is used in an amount such that at least 0.1 mole of sodium hydroxide is present for each mole of crude S,S,S-tributylphosphortrithioate.