baber/WOPTO huggingface dataset:
Patent CA-2102627-C (CA)
Inventor: SKREBERGENE NILS ODDVAR
IPC: B21C37/12
Filed: 1993-03-03
Granted: 2003-09-23
Abstract: In a machine for the production of helically wound tubing from a metal strip, the said strip is advanced within a helical farming head (22) to form a metal tube, and a cutting apparatus for severing the tube as it issues from the forming head (22) com-prises an internal cutting blade (1l) mounted at the end of a boom (8) extending within the forming head (22), and a rotatable external cutting wheel (17) mounted upon a drive shaft (15) that is coupled to a driving motor (20) via a cardan shaft (21). An ex-tendable pillar (12) is arranged to raise and Power the cutting wheel (17) relatively to the cutting blade (11) in order to pause the blades (11) and (17) to overlap and cut a metal tube. The boom (8), pillar (12) and motor (20) are all carried on a common carri-age (4) that is axially movable relatively to the forming head (22) when the cutting wheel (17) penetrates the wall of the metal tube. The carriage (4) may move passively with the tubing or may be driven in synchronism therewith by means of a servo drive synchronised with the speed of advance of the metal strip that is to form the tubing.
Patent CA-2103130-C (CA)
Title: Preparation of polyesters from polyethers by an ester-insertion process
Inventor: YANG LAU S
IPC: C08G63/676
Filed: 1993-11-15
Granted: 2003-05-06
Abstract: Polyesters are prepared by a new ester-insertion reaction of a polyether and a cyclic anhydride in the presence of a Lewis acid catalyst. The process is advantageously used to convert polyether polyols recovered from polyurethanes into curable unsaturated polyester resins.
Patent CA-2107221-C (CA)
Title: Circuit de mesure de tension a faible consommation d'energie
Inventor: JENQ CHING S
IPC: G11C16/06
Filed: 1992-03-09
Granted: 2000-11-28
Abstract: Circuit de détection de la tension (10) utilisant un transistor mos à canal P (14) pour fournir un signal de détection à un noeud sensible (15) qui est appliqué à un circuit de commande (60) afin de produire un signal de tension de sortie désirée (13).
Patent CA-2109153-C (CA)
Inventor: WINTERSON WARREN D
IPC: A23L19/00
Filed: 1993-10-25
Granted: 2006-07-11
Abstract: A process for reordering tobacco, which results in no significant decrease in equilibrium tobacco CV or significant tobacco degradation, is provided. Tobacco to be reordered is contacted with an air stream having a relative humidity near the equilibrium conditions of the tobacco. As the OV content of the tobacco increases, the relative humidity of the air stream contacting the tobacco is increased to affect reordering of the tobacco.      Also provided is a process for drying tobacco, which results in no significant change in equilibrium tobacco CV or significant tobacco degradation. Tobacco to be dried is contacted with an air stream having a relative humidity near or below the equilibrium conditions of the tobacco. As the OV content of the tobacco decreases, the relative humidity of the air stream contacting the tobacco is decreased to affect drying of the tobacco.      It has been found that tobacco can be reordered or dried successfully in a continuous manner using a self-stacking spiral conveyor.
Patent CA-2111277-C (CA)
Title: Controlled functional density poly(secondary amines) and method for preparation thereof
Inventor: MCGRATH MARTIN P
IPC: C08F8/32
Filed: 1993-12-13
Granted: 1998-06-23
Abstract: A process for preparing a controlled functional density poly(secondary amine) comprising: (a) contacting a polymer containing olefinic unsaturation with carbon monoxide in hydrogen under hydroformylation conditions in the presence of a hydroformylation catalyst to produce a controlled functional density polyaldehyde containing reactive carbon-carbon double bonds, and (b) contacting the polyaldehyde with hydrogen and a primary amine under reductive amination conditions in the presence of a ruthenium-containing imine hydrogenation catalyst or (b1) contacting the polyaldehyde with a sterically hindered aliphatic or cycloaliphatic primary amine or an aromatic primary amine under reductive amination conditions in the presence of an alkali metal borohydride to produce poly(secondary amine) having a substantially equivalent ratio of secondary amine groups to reactive carbon-carbon double bonds as the ratio of aldehyde groups to reactive carbon-carbon double bonds in the polyaldehyde.
Patent CA-2112104-C (CA)
Inventor: SHURTLEFF EDWARD C
IPC: C10M175/00
Filed: 1992-06-10
Granted: 2003-09-16
Abstract: Apparatus for reclaiming a useful oil product has an evaporation chamber, including an inlet for the waste oil, and an out-let for the vaporized oil, as a useful oil product. Burners are provided for heating the evaporation chamber to vaporize oil from the waste oil. A pump and a float arrangement are provided for monitoring the level of waste oil in the evaporation chamber, and for pumping additional waste oil into the chamber to maintain the waste oil at a desired level. Continuous operation of the appar-atus results in a build up of solid wastes, e.g. heavy metals, in the chamber.  After a period of operation, the burners are turned off, and the chamber opened, to enable the solid residue to be removed from the chamber. The vaporized oil can be condensed and collected.
Patent CA-2113179-C (CA)
Title: Ducted tail rotor for rotary wing aircraft providing torque reaction and yaw attitude control
Inventor: DESJARDINS RENE A
IPC: B64C27/45
Filed: 1992-07-31
Granted: 2001-01-23
Abstract: A tail rotor (8) for a rotary wing aircraft is located in a laterally direct duct (9) located at the end of a tail cone (7) extending rearward from the aircraft cabin and at the base of an empennage (5) extending upward from the duct (9). The rotor includes a rotor shaft (78) driveably connected to a power source, a rotor hub (10) connected to the rotor shaft (78), a rotating control shaft (64), a stationary control shaft (118), and an actuator (126) connected to the stationary control shaft (118) for moving-the rotating control shaft (64) axially. The rotor hub (10) includes rotor arms (12) each supporting a pitch shaft (16) for pivotable movement about a pitch axis (B). Each pitch shaft (16) is adapted to support a rotor blade (14) so that its angle of attack changes with movement of the pitch shafts. A pitch beam (54), located adjacent the rotor hub, supports flexure members (48), each connected to a pitch-shaft eccentric of its pitch axis. The flexures (48) driveably connect the pitch shafts to the pitch beam (54) and transmit pitch control motion to the pitch shafts as the pitch beam moves along the rotor axis due to actuator input.
Patent CA-2113726-C (CA)
Title: Use of tetrahydrocarbazone derivatives as 5ht1 receptor agonists
Inventor: KING FRANCIS DAVID
IPC: C07D403/12
Filed: 1992-06-17
Granted: 2008-02-19
Abstract: Use of a compound of general formula (1), wherein R1 represents hydrogen, halogen, trifluoromethyl, nitro, hydroxy, C1-6alkyl, C1-6alkoxy, arylC1-6alkoxy, -CO2R4, -(CH2)n CN, -(CH2)n CONR5R6, -(CH2)n SO2NR5R6, C1-6alkanolyami-no(CH2)n, or C1-6alkylsulphonylamino(CH2)n; R4 represents hydrogen, C1-6alkyl or arylC1-6alkyl; R5 and R6 each independently represent hydrogen or C1-6alkyl, or R5 and R6 together with the nitrogen atom to which they are attached form a ring; n represents 0, 1 or 2; and R2 and R3 each independently represent hydrogen, C1-6alkyl or benzyl or together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino or hexahydroazepino ring; or a physiologically acceptable salt thereof, in the manufacture of a medicament for the treatment of a condition where a 5-HT1-like agonist is in-dicated, for example migraine. Novel compounds of formula (1), processes for preparing them and pharmaceutical compo-sitions containing them are also described.
Patent CA-2116856-C (CA)
Title: Apparatus and method for testing an active matrix pixel display
Inventor: NELSON LARRY A
IPC: G09G3/00
Filed: 1992-09-17
Granted: 2000-11-28
Abstract: Apparatus and an associated method are described for testing liquid crystal matrix displays that can be performed prior to the assembly of the display. This display procedure involves applying a square wave signal to the control elements and a sine wave signal to the input terminal of an active element associated with the pixel under test. By selection of the sine wave signal frequency, the modulation products resulting from the combination of the square wave signal and the sine wave signal fall between the components resulting from the application of the square wave signal alone.  As a result of the symmetry of the modulation components, a comb filter (304) can be used to select the modulation components. The power of the transmitted modulation products provides a figure of merit for the active element associated with the pixel. A capacitor can be included along with the active element in the matrix display which couples the output signal of each active element to a row (control terminal) electrode (11) on the same substrate as the active element. The capacitor provides an increase in the test result signal to noise level and permits testing of the active matrix substrate prior to display assembly.
Patent CA-2120162-C (CA)
Title: Herbicidal composition for upland farming and weeding method
Inventor: MABUCHI TSUTOMU
IPC: A01N43/56
Filed: 1994-03-29
Granted: 1998-04-07
Abstract: A herbicidal composition for upland farming which can control weeds that have been difficult to control, for example, cleavers, chickweed, birdseye speedwell and violet, said composition containing as active ingredients a 3-substituted phenylpyrazole derivative represented by the general formula (I):     (see fig. I) (wherein R is a hydrogen atom, a C1-6 alkyl group, a C3-6 cycloalkyl group, a C1-6 haloalkyl group, a C2-6 alkenyl group or a C2-6 alkynyl group, R1 is a C1-6 alkyl group, X1 and X2, which may be the same or different, are halogen atoms, and Y is an oxygen atom or a sulfur atom) and at least one compound selected from the group consisting of sulfonylurea derivatives, phenylurea derivatives and phenoxy fatty acid derivatives; and a weeding method using said composition.
Patent CA-2121865-C (CA)
Inventor: RANDALL ALVIN VARNARD
IPC: G03F1/00
Filed: 1994-04-21
Granted: 2006-08-15
Abstract: Laser-imageable flexographic printing plates and a method of making same are disclosed. A thin polymeric film doped with a UV absorber is laminated to a photopolymer layer. The film is ablated from the photopolymer using a laser operating at a selected wavelength to create an in situ negative. The resulting negative can be subjected to typical UV flood exposure and development.
Patent CA-2133338-C (CA)
Inventor: POWER SCOTT D
IPC: C12R1/125
Filed: 1993-03-30
Granted: 2006-06-13
Abstract: There are described processes for expressing a lipase in a heterologous host.  Further described are transformed cells comprising heterologous DNA and particular plasmids containing heterologous fusion DNA constructs.
Patent CA-2145173-C (CA)
Title: Low-noise rotary control valve
Inventor: LEINEN CHRIS M
IPC: F16K47/04
Filed: 1993-09-15
Granted: 2003-07-01
Abstract: A low-noise rotary control valve includes a valve body (10) and a rotatable ball (12). An upwardly extending diverter (28) is positioned in the entry flow passage (15) of the ball (12). A downwardly extending diverter (30) is disposed on the leading edge of the upper half of the valve (12). The diverters (28, 30) provide a small impedance to flow when the valve is in the full open posi-tion, but provide a tortious path for fluid flow when the valve is partially closed. The tortious path inhibits vortex formation re-sulting in reduced noise and vibration. A third impediment (32) in the outflow passage (16) extends upwardly from the valve and inhibit vortex formation downstream of the valve.
Patent CA-2145740-C (CA)
Title: A perforating gun having a plurality of charges
Inventor: BROOKS JAMES EMMERT
IPC: F42D1/045
Filed: 1995-03-28
Granted: 2007-12-18
Abstract: A perforating apparatus adapted to be disposed in a wellbore includes a plurality of shaped charges, an electrical current carrying conductor, and a plurality of exploding foil or exploding bridgewire initiators disposed, respectively, between the the plurality of charges and the current carrying conductor for simultaneously detonating thereby simultaneously detonating all of the plurality of shaped charges of the perforating apparatus in response to a current flowing in the conductor. Each of the shaped charges include a new secondary explosive primer disposed in the apex of the charge for detonating in response to a detonation of the exploding foil or exploding bridgewire initiator. The electrical conductor may include a flat cable having a plurality of such initiators spaced apart at predetermined intervals along the cable and adapted to wrap helically-around the perforating apparatus until each of the initiators abut against a shaped charge of the plurality of charges in the perforating apparatus. In an alternate embodiment, the electrical current carrying conductor may include a flat sheet having a specific length and width and including a plurality of such initiators. The flat sheet is adapted to wrap around the entire circumference of the perforating apparatus until each of the initiators in the sheet abut against a shaped charge of the plurality of charges in the perforating apparatus. The current in the conductor may originate from a compressed magnetic flux (CMF) current pulse generator or from a charging capacitor of a conventional system including one or more charging capacitors and associated discharge switches. When the perforating apparatus includes a first and second perforator separated by an adaptor, the adaptor includes a pressure bulkhead adapted to seal the first perforator from the second perforator, an explosive disposed in contact against one side of the bulkhead and a piezoelectric ceramic disposed in contact against the other side of the bulkhead.
Patent CA-2146956-C (CA)
Inventor: HONKOMP GLENN A
IPC: H01B17/30
Filed: 1995-04-12
Granted: 1998-10-27
Abstract: A hermetic terminal assembly structure adapted to be sealed along the periphery of an aperture in a chamber defining housing wall of a hermetically sealed chamber including a terminal pin sealed by a coalescent aperture seal in the aperture to include inner and outer pin portions,  each of which pin portions  is surrounded by one of a pair of sleeve members sealingly cooperative with the aperture seal.
Patent CA-2157452-C (CA)
Title: Lining sheet for vehicle ceiling and laminate using the same
Inventor: KOHYAMA MASAKI
IPC: B32B5/18
Filed: 1995-09-01
Granted: 2000-05-30
Abstract: The lining sheet for vehicle ceiling according to the invention is formed from a poly-1-butene resin composition comprising a poly-1-butene resin, an olefin thermoplastic elastomer and a polypropylene resin in the specific amounts, and this olefin thermoplastic elastomer is a partially crosslinked thermoplastic elastomer obtained by dynamically heat treating a mixture of an ethylene-.alpha.-olefin copolymer rubber and a polypropylene resin in the presence of an organic peroxide.  The laminate according to the invention uses this lining sheet as a surface layer.  The lining sheet is excellent in resistance to surface damage, resistance to penetration and embossing characteristics.          The laminate using the lining sheet as a surface layer is excellent in resistance to surface damage, resistance to penetration and embossing characteristics.  Moreover, the laminate has high moldability, so that any wrinkle does not take place on the surface even when the laminate is molded.
Patent CA-2158430-C (CA)
Title: Method of producing sugars using strong acid hydrolysis of cellulosic and hemicellulosic materials
Inventor: FARONE WILLIAM A
IPC: C13B20/14
Filed: 1994-03-25
Granted: 2003-12-16
Abstract: An economically viable method for producing sugars using concentrated acid hydrolysis of biomass containing cellulose and hemicellulose is disclosed. The cellulose and hemicellulose in the biomass are first decrystallized and then hydrolysed to produce a hydrolysate containing both sugars and acid. Silica present in the biomass can then be removed for further processing.  The remaining solids are then subjected to a second decrystallization and hydrolyzation to optimize the sugar yields. An improved method for separating the sugars from the acid in the hydrolysate is also disclosed. The resulting sugar stream can then be fermented, using an improved method which allows both hexose and pentose sugars to be fermented simultaneously.
Patent CA-2158969-C (CA)
Title: Zirconium silicate grinding medium and method of milling
Inventor: BROWNBRIDGE THOMAS IAN
IPC: B02C23/18
Filed: 1995-01-24
Granted: 2000-06-27
Abstract: A grinding medium including naturally occurring zirconium silicate sand characterized by a density in the range of from about 4 g/cc absolute to about 6 g/cc absolute is provided. Also provided is a method for milling a powder which includes steps of forming a milling slurry including a naturally occurring zirconium silicate sand grinding medium having a density in the range of from about 4 g/cc absolute to about 6 g/cc absolute.
Patent CA-2159926-C (CA)
Inventor: PALUMBO GIANFRANCO
IPC: B65D75/58
Filed: 1995-10-05
Granted: 2001-05-15
Abstract: A pack has a body (11) defining a cavity for receiving articles such as wet wipes.    The body (11) is provided with a slit  (13) which is non-rectilinear and  which  has  first  and  second  ends,  for  example V-shaped.    A sealing member (15) covers the slit and is resealably adhered to the body on both sides of the slit, whereby to provide a seal.
Patent CA-2160447-C (CA)
Title: Amino(thio)ether derivatives
Inventor: BOTTCHER HENNING
IPC: C07C211/00
Filed: 1995-10-12
Granted: 2008-09-02
Abstract: Amino(thio)ether derivatives of formula I (see formula I) wherein R o, R1, R2, R3, R6, R7, R8, R9, X and Z are as defined in Claim 1, and their salts, are active on the central nervous system.
Patent CA-2161264-C (CA)
Title: A method and apparatus for reeling a wound web roll
Inventor: ADAMSKI BRIAN C
IPC: B65H18/26
Filed: 1994-04-28
Granted: 1999-07-13
Abstract: A method and apparatus for reeling a traveling web, such as paper produced on a paper-making machine, includes a pair of spaced, horizontally disposed rails (12, 12') for supporting one or morn reel spools (18).      One of the reel spools (18a) is moved into an initial position (33) and rotated to bring it up to machine speed. A support dorm (48) is moved translationally substantially vertically (52, 54, 56) from beneath the rotesting reel spool to engage it along a nip line of contact (N1).      The on-coming web (W) is directed into dre nip of the rotatably driven reel spool to begin the web reeling process to build a wound web roll (8). After having reached a certain diameter the web roll (8) is moved horizontally from the initial position (33) to a winding position (41) while maintaining it rotatively supported on the rails (12, 12'). In the winding position (41) the support drum (48) engages the web roll (8) along a nip line of contact (N2). The support drum (48) remains in contact with the wound web roll building upon the reel spool (18) continuously throughout the whole winding procedure until the desired wound web roll diameter is attained. The reel spool/wound web roll is maintained under the control, or influence, of three forces at all times during the formation of the wound web roll: 1) torque from a drive means attached to the reel spool, 2) nip pressure from the support drum, 3) web tension of the web coming onto the driven reel spool. The support drum preferably partially supports the wound web roll at all times during the reeling process, and the wound web roll remains horizontal on the support rails (12, 12') at all times as the wound web roll is formed.
Patent CA-2167547-C (CA)
Title: Apparatus for continuous removal of a solvent or other liquid from solid particles or granules
Inventor: KRATOCHWILL WILLIAM L
IPC: F26B17/02
Filed: 1996-01-18
Granted: 2006-11-07
Abstract: An apparatus for separating a solvent from solid or granular particles. The apparatus includes a fully enclosed vessel having multiple stages for effecting the solvent removal therein. Each stage includes an upper deck and a lower deck extending across the width of the vessel generally parallel to one another over a substantial portion of the length of the vessel. A first gear and a second gear are operatively located beyond the ends of the upper and lower decks. A means for conveying solid particles forms a continuous loop extending from the first gear over the lower deck, around the second gear and over the upper deck and back to the first gear. Drive means are provided for rotating the means for conveying solids. The lower deck is heated to a sufficient temperature to cause vaporization of at least a portion of the solvent contaminating the solid particles as the particles are conveyed over the heated deck. The means for conveying solids moves the solids through the apparatus so that the solids first to enter are the first to exit the apparatus to minimize residence time, reduce grinding or breaking of the solids, and minimize the likelihood that solid particles will be burned or stick to the apparatus.
Patent CA-2171326-C (CA)
Title: Crash impact attenuator constructed from high molecular weight/high density polyethylene
Inventor: CARNEY JOHN F III
IPC: E01F15/14
Filed: 1994-09-08
Granted: 1999-08-24
Abstract: A crash impact attenuator (10) including one or more cylinders (12), each bolted or otherwise connected to the adjacent cylinder (12) and such cylinders (12) being connected to the platform (14) of a service vehicle (16) or to an abutment adjacent a highway wherein the cylinders (12) are constructed from a high molecular weight/high density polyethylene material (18).
Patent CA-2173765-C (CA)
Inventor: HONBO HIDETOSHI
IPC: C01B31/04
Filed: 1996-04-10
Granted: 2000-08-08
Abstract: A carbon material having a superior reversibility in the lithium intercalation-deintercalation reaction is used in a non-aqueous secondary battery as the active material for the negative electrode. The result is a high energy density and excellent rapid charging and discharging characteristics. Graphite powder having a maximum particle diameter of less than 100 µm and a fraction of rhombohedral structure in the crystalline structure of less than 20% is used as the active material for the negative electrode of the battery. This graphite powder can be obtained by pulverizing raw graphite with a jet mill, and subsequently treating the powder at a temperature equal to or higher than 900°C.
Patent CA-2174772-C (CA)
Inventor: HERING MARTIN
IPC: E06B11/08
Filed: 1995-02-01
Granted: 2002-05-14
Abstract: A novel indicia device and a novel turnstile incorporating such device are both provided herein. The indicia device includes a tubular sleeve containing indicia and receivable about the arm, the tubular sleeve including an arm-receiving end and an opposing free end. Coupling means are provided for coupling the sleeve to the arm. The turnstile for carrying indicia includes a housing. An arm is rotatably carried by the housing, the arm having an arm-proximal end which is operable with, and is carried within, the housing, and an arm-distal end extending into a passageway which is adjacent to the housing for blocking passage of a person therethrough. A cover is slidably-disposed on the arm-distal end which is separated from the arm-proximal end for positioning within the passageway. Indicia is carried by the cover, the indicia being positioned for viewing by a person moving through the passageway.