baber/WOPTO huggingface dataset:
Patent CA-2147343-A1 (CA)
Title: Process for the purification of perfluoroalkyl bromides or perfluoroalkylene dibromides
Inventor: RAAB KLAUS
IPC: A61K31/02
Filed: 1995-04-19
Abstract: Abstract Process for the purification of perfluoroalkyl bromides or porfluoroalkylene dibromides Perfluoroalkane mono- and dibromides can be freed from impurities, in particular from the corresponding iodides, by treatment with a primary or secondary alcohol and a base.
Patent CA-2149174-A1 (CA)
Title: Changeable shape clothing accessory
Inventor: WALKER JANICE
IPC: A45C9/00
Filed: 1995-05-11
Abstract: A changeable shape clothing accessory which can be used as either a hat or a hand bag is made from foldable material forming an endwall, a sidewall and a collar or brim extending outwardly from the sidewall.  The sidewall has a lower edge with a fold which reverses upon itself and which is secured outwardly of and back to the sidewall forming a thickened band around the accessory.  The collar has an interior end trapped in the fold which forms the band.  The band provides a reinforced region about which the different parts of the accessory are foldable.
Patent CA-2149804-A1 (CA)
Title: Signal tube and detonator cord connector
Inventor: KELLY GEORGE GARY
IPC: F42D1/04
Filed: 1995-05-19
Abstract: The present invention is directed to an improved connector comprising a first and second holding means for pressure fitting a detonating cord and shock tube in a substantially orthogonal pressure fitting relationship.
Patent CA-2152192-A1 (CA)
Title: Polymer bound ligands, polymer bound metallocenes, catalyst systems, preparation, and use
Inventor: PEIFER BERND
IPC: C08F10/00
Filed: 1995-06-20
Abstract: A polymer bound ligand represented by the formula QM(R)m and process for preparing same are provided, wherein Q is a polystyrene, M is Si, C, Ge, Sn, P, or N, each R is a that at least one R is a cyclopentadienyl-type compound, and m is 2 or 3, said process comprising reacting a metallated polystyrene and an organohalide compound, wherein the polystyrene is metallated with an alkali metal, and wherein said organohalide compound is represented by the formula XM(R)m wherein X is a halide. Other aspects of the present invention include a polymer bound metallocene represented by the formula QM(R)mZYn and a process for preparing same, wherein Z is a transition metal, Y is a halide, methyl, hydrogen, or a cyclopentadienyl-type group, and n is 2 or 3 . Other aspects of the present invention include a catalyst system comprising the polymer bound metallocene and an organoaluminoxane, a method for preparing same, and a polymerization process employing the catalyst system.
Patent CA-2154386-A1 (CA)
Inventor: VIAUD JEAN
IPC: A01F15/07
Filed: 1995-07-21
Abstract: A round baler is provided with a bale wrapping mechanism including a wrap material guide assembly comprising a guide pan having an operative position wherein a guide surface is disposed upwardly for guiding wrap material into the baling chamber by way of a gap existing between adjacent fixed rolls forming at least a portion of the baling chamber. The guide pan is mounted for pivoting vertically and shifting fore-and-aft for permitting it to move to a inoperative position wherein a majority of the guide surface is disposed near vertical with the remainder being steeply disposed so that crop material and dirt will not accumulate on the guide surface. A wrap material cutting device includes a knifeassembly including a knife mounted between opposite arms and being pivotal between a stand-by position, wherein the knife is disposed below a feed path of the wrap material when the latter is passing through the gap into the bale chamber during wrapping of a bale, and a cutting position wherein it traverses the feed path. At least one coil extension spring is coupled between the knife assembly and the guide pan for causing the latter to be moved to its inoperative positionwhenever the knife is moved to its operative position and to be moved to its operative position whenever the knife is moved to its stand-by position.
Patent CA-2154491-A1 (CA)
Title: Field weakening for a doubly salient motor with stator permanent magnets
Inventor: LIPO THOMAS A
IPC: H02K21/20
Filed: 1994-02-15
Abstract: A device for field weakening in a doubly-salient variable reluctance motor having permanent magnets (22, 24) in the stator (10). The field weakening increases the constant power range of the motor and is accomplished by controlled movement of steel insets (16, 36) toward and away from the sides of the stator (10) proximate the permanent magnets (22, 24) to provide a controllable by-pass flux path thereabout. Alternatively, the field weakening may be accomplished by a flux by-pass collar (40) which may be angularly positioned around the stator (10) to bridge the permanent magnets (22, 24) of the motor with discrete magnetic sections, thereby providing an alternate by-pass flux path around the permanent magnets (22, 24) in addition to the main air gap flux path. A third alternative means for maintaining a constant power range is accomplished by controlled axial sliding of the permanent magnets (22, 24) themselves into and out from the stator (10).
Patent CA-2155005-A1 (CA)
Inventor: MCGREGOR WELDON COURTNEY
IPC: A61P31/04
Filed: 1994-02-02
Abstract: Bactericidal/permeability increasing (BPI) polypeptide pharmaceutical compositions having improved stability and resistance to aggregation, particle formation and precipitation comprising the polypeptide pharmaceutical and poloxamer surfactants alone, or in combination with polysorbate suractants. Preferred BPI polypeptides stabilized are bactericidal/permeability increasing (BPI) protein, biologically active fragments of BPI, and biologically active analogs of BPI.
Patent CA-2156149-A1 (CA)
Inventor: SEKI KENJI
IPC: H04B1/38
Filed: 1995-08-15
Abstract: A battery-powered radio-modem monitors the output voltage of its battery as well as the amount of transmitted/received data at all times. When a voltage drop of the battery is detected, the radio-modem displays communication information including the amount of data which has been sent or received by that time. The data transmission is halted at the time when the battery voltage drop is detected. Since a user can easily obtain the communication information through the display, it is immediately determined whether all the data have been transmitted. Furthermore, the user can easily identify possible errors in the received data due to the battery voltage drop. After the battery is restored to a sufficient voltage, data transmission is resumed automatically.
Patent CA-2157977-A1 (CA)
Title: Load binder lock
Inventor: STREET DAVID
IPC: B65B13/34
Filed: 1995-09-11
Abstract: A lock is used for locking a load binder for tightening chains. The binder is of the type having a handle with an over center position adjacent a tightened chain. The lock includes a yoke that extends through a chain link and over opposite sides of the handle. A retainer pin is engaged with the yoke to retain the handle in place against inadvertent release.
Patent CA-2158488-A1 (CA)
Title: Saw tooth fittings
Inventor: EGERER JOSEF
IPC: D01G15/88
Filed: 1995-09-14
Abstract: In saw tooth fittings for preparatory textile machines, for instance comb-ing machines for wool or cotton wool, carding machines or the like, com-prising saw tooth elements or strips, respectively, with a tooth or a plu-rality of teeth which, seen in the direction of combing, have a forward combing front edge of an extension concavely curved at least in sections from the foot portion of each tooth to the tip of each tooth, it is pro-vided, with a view to improving the combing effect, that from the comb-ing front edge, at least one tip extends forwardly seen in the direction of combing.
Patent CA-2158774-A1 (CA)
Title: Method and circuit for creating frequencies for a radio telephone
Inventor: HULKKO JAAKKO
IPC: H04B1/40
Filed: 1995-09-21
Abstract: In the frequency synthesizer described in the present invention, the stable transmission frequency required by the digital operating mode is created from a frequency produced by a free running oscillator and which includes frequency errors.  A local frequency (f1) and an intermediate frequency (fIF) including frequency errors are input to a mixer (105) located in the signal path of the transmitter. A transmission frequency transmission signal (fTX) is input to a phase-lock loop with a voltage-controlled oscillator (103) that produces the local frequency (f1). Thereby the frequency error caused by the intermediate frequency (fIF) can be corrected with the local frequency (f1) by adjusting the voltage-controlled oscillator (103) of the loop with a voltage (VD) that is proportional to the phase difference between the transmission frequency signal and a reference signal (VREF) input to a phase comparator.  This is implemented by connecting the mixer (105) to the loop during the transmission time period with a controllable switch (104), for example. The local frequency (f1) of the receiver is produced with the frequency synthesizer described in the present invention by disconnecting the mixer (105) from the loop. The invention can be applied in producing frequencies for radio telephones that include dual-mode operating modes and exclusively digital operating modes.
Patent CA-2158836-A1 (CA)
Inventor: STEINGRABER GARY C
IPC: A01J5/04
Filed: 1994-03-28
Abstract: A top unloading milking claw (10) includes a high impact transparent plastic lower bowl (12) and a stainless steel upper top (14). The claw has a plurality of deflectors (50, 52, 54, 56) on the inner surface (48) of the lower bowl (12) and spaced radially outwardly of the vertical riser outlet tube (28) by an annular gap (58) therebetween.  The deflectors (50, 52, 54, 56) reduce tangential velocity of milk flow along the inner surface (48) of the bowl (12) by intercepting such tangential milk flow and redirecting the intercepted milk flow inwardly and downwardly along the inner surface (48) toward the bottom of the bowl (12) to fill the space (38) between the lower end (36) of the outlet tube (28) and the bottom of the bowl (12), to maximize the air pressure differential across the surface of the milk, between the ambient air pressure within the claw and the vacuum within the outlet tube, to maximize milk flow capacity of the claw (10).
Patent CA-2161994-A1 (CA)
Title: Digital video signal processing system including a co-channel rejection filter
Inventor: STROLLE CHRISTOPHER HUGH
IPC: H04N5/44
Filed: 1995-11-02
Abstract: A digital signal processing system for receiving and processing a high definition television signal, eg., in a Pulse Amplitude Modulation (PAM) format, includes a filter for rejecting interferer signals such as a narrowband continuous wave NTSC  co-channel interferer. In an illustrated embodiment the rejection filter is a digital FIR filter located after a (de)rotator in a carrier recovery network. The filter exhibits a zero throughput delay bandpass response with attenuation notches for rejecting NTSC  co-channel picture and chrominance baseband carrier frequencies.
Patent CA-2164480-A1 (CA)
Title: Seal for disc filter valve
Inventor: CHASE CALVIN C
IPC: B01D33/21
Filed: 1995-12-05
Abstract: A circumferential seal for a disc filter valve to rotary collection pipe is formed by a radially compliant circumferentially restrained and tensioned seal disposed in a split "V" notch formed between the stationary valve plate and the rotating collection pipe.
Patent CA-2166506-A1 (CA)
Title: Improved field emission devices having corrugated support pillars with discontinuous conductive coating
Inventor: JIN SUNGHO
IPC: H01J29/86
Filed: 1996-01-03
Abstract: A field emission device is made by providing the device electrodes, forming a plurality of corrugated insulating rods with discontinuous coatings ofconductive or semiconductive material with low secondary electron emission coefficient, adhering the rods to an electrode, cutting the rods to define corrugated pillars, and finishing the device.  The result is low cost production of a field emission device having superior resistance to breakdown in high field operation.
Patent CA-2166619-A1 (CA)
Inventor: VARASI MARIO
IPC: A61P25/36
Filed: 1995-05-02
Abstract: Novel 5-HT3 receptor antagonist compounds having formula (I), wherein n is 1, 2 or 3; each of R, R1 and R2, which may be the same or different, is hydrogen, halogen, hydroxy, cyano, C1-C6 alkyl, CF3, C1-C6 alkoxy, C1-C6 alkylthio, formyl, C2-C6 alkanoyl, carboxy, C1-C6 alkoxy-carbonyl, nitro, -N (R4 R5), in which each of R4 and R5 independently is hydrogen, C1-C6 alkyl, formyl or C2-C6 alkanoyl; or a (R6 R7) N-SO2 group, in which each of R6 and R7 independently is hydrogen or C1-C6 alkyl; R3 is an imidazolyl group of formula (a) or (b), wherein each of R8 and R10 which may be the same or different is hydrogen or C1-C6 alkyl, R9 is hydrogen, C1-C6 alkyl or a nitrogen protecting group; and the pharmaceutically acceptable salts thereof, are disclosed.
Patent CA-2167703-A1 (CA)
Inventor: JONES ALLAN SCOTT
IPC: C08G63/189
Filed: 1994-08-08
Abstract: This invention relates to naphthalenedicarboxylic acid containing polymer compositions having reduced fluorescence. More specifically, the polymers contain at least 0.1 mole percent of 2,6-naphthalenedicarboxylic acid or 2,6-naphthalenedicarboxylate ester, with 0.1 to 5 mole percent of a copolymerizable aromatic ketone. These polymers are useful for packaging applications where clarity and/or aesthetic appeal are of concern.
Patent CA-2171702-A1 (CA)
Title: Benzofuran compounds and their use
Inventor: SOHDA TAKASHI
IPC: C07D417/14
Filed: 1996-03-13
Abstract: Benzofuran compound represented by the formula:            wherein   represents a group capable of releasing a cation in which ? represents a single or double bond: R1 represents an optionally substituted heterocyclic residue which may be attached to the oxygen atom through a carbon chain; R2 represents a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon residue, an optionally protected hydroxyl group or an optionally protected amino group; Y represents a di- or tri-valent aliphatic hydrocarbon residue having 1 to 8 carbon atoms; and the benzene ring of the benzofuran moiety may have further substituents; or a salt thereof, which has excellent hypoglycemic and hypolipidemic action.
Patent CA-2175399-A1 (CA)
Title: Folding device for an automatic sewing machine
Inventor: SCHULZE WOLFRAM
IPC: D05B35/04
Filed: 1996-04-30
Abstract: Above a workpiece-receiving plate for an lower workpiece, a folding de-vice for an automatic sewing machine comprises two swords, namely a lower sword and an upper sword for receiving an intermediate workpiece and an upper workpiece, respectively. For the folding of the intermediate workpiece about the outer edges of the lower sword, folding modules are mounted on the underside of an outer frame. For the folding of the upper workpiece about the outer edges of the upper sword, folding modules are provided on the upper side of the outer frame. The swords are mounted on a common carriage and movable in height relative to each other. The carriage iself is likewise displaceable in height.
Patent CA-2175573-A1 (CA)
Title: An injection pen solution transfer apparatus and method
Inventor: MICHEL PETER
IPC: A61J1/00
Filed: 1994-10-31
Abstract: An injection pen apparatus (30) for medicament injection including a medicament cartridge assembly (31) formed to receive and contain a medicament therein. A holding sleeve (34) is provided which is dimensioned to receive the medicament cartridge assembly (31) therein which mates with a solution transfer device (35) including an axially movable displacement rod (36). The injection pen apparatus (30) further includes a coupling mechanism (37) removably coupling the solution transfer device (35) to both a plunger (32), slidably movable in the cartridge (33), and to the holding sleeve (34). A sleeve mounting assembly (40) of the coupling mechanism (37) removably mounts the coupling mechanism to the holding sleeve (34). A locking device (41) is included which is formed and dimensioned to require joining of the displacement rod (36) relative the sleeve mounting assembly (40) after uncloupling of the rod from the plunger (32) and before uncoupling of a remainder of the solution transfer device (35) from the holding sleeve (34).
Patent CA-2177514-A1 (CA)
Title: Coaxial engine starter system
Inventor: KIMURA EIICHI
IPC: F02N15/06
Filed: 1996-05-28
Abstract: In a coaxial engine starter comprising a pinion (6) connected to the output shaft (4) which is driven by an electric motor (3), via a helical spline (19), a switch unit (7) for selectively closing a power supply line to the electric motor, and a solenoid device (9) consisting of an annular armature and an annular energization coil surrounding the output shaft to axially drive the pinion and a moveable contact of the switch unit in the axial direction, the switch is adapted to be closed before the pinion is actuated by the solenoid device. Therefore, the output requirement for the solenoid device can be reduced as opposed to the conventional starter in which the pinion is actuated strictly by the solenoid device, and the size of the engine starter can be reduced.
Patent CA-2178671-A1 (CA)
Title: Polylactone aromatic esters and fuel compositions containing the same
Inventor: CHERPECK RICHARD E
IPC: C10L1/238
Filed: 1996-06-10
Abstract: Polylactone aromatic esters having the formula:                                       (I) wherein R1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the compound soluble in hydrocarbons boiling in the gasoline or diesel fuel range;          R2 is an alkylene group of about 2 to 5 carbon atoms;          R3 and R4 are each independently hydrogen, hydroxy, nitro, amino, N-alkylamino having 1 to 6 carbon atoms in the alkyl group, or N,N-dialkylamino having 1 to 6 carbon atoms in each alkyl group, provided that R3 and R4 may not both be hydrogen; and x is an integer from 1 to 25.         The polylactone aromatic esters of formula I are useful as fuel additives for the prevention and control of engine deposits.
Patent CA-2181005-A1 (CA)
Title: Gas capsule
Inventor: SHERVINGTON EVELYN A
IPC: A61M5/307
Filed: 1996-07-11
Abstract: A capsule 1 for storing a propellant fluid, for example, helium under pressure comprises a hollow body 2 which includes a frangible area 4. An anchor member 8 attaches an arm 6 to the frangible area 4 such that when a force is applied to the arm 6, said force together with the helium under pressure will cause the frangible area to rupture outwardly of the hollow body 2 thereby to release the helium.
Patent CA-2182263-A1 (CA)
Inventor: BARTHOLD FRED O
IPC: B01D21/26
Filed: 1995-02-13
Abstract: A continuous mode full wave power converter topology which integrates the buck-boost (flyback) and buck converter properties. The voltage transfer function is M = (D/(1-D)), characteristic of the buck-boost (flyback) converter. Characteristic of the full wave buck converter, the inductor current is source continuous during the alternate D intervals, source discontinuous during the simultaneous (1-D) intervals, and load continuous during both the D and (I-D) intervals. A continuous mode full wave power converter topology which integrates the buck-boost (flyback) and buck converter properties. The voltage transfer function is Eout = Ein (D/(1-D)), characteristic of the buck-boost (flyback) converter. Characteristic of the buck converter, the inductor current is source continuous during the alternate D intervals, source discontinuous during the simultaneous (I-D) intervals, and load continuous during both the D and (I-D) intervals.
Patent CA-2183252-A1 (CA)
Title: Security device for a syringe used in dentistry
Inventor: JOUVIN JEAN-LUC
IPC: A61M5/32
Filed: 1995-02-15
Abstract: The present invention relates to a security device for a syringe used in dentistry, consisting of a tubular sleeve inside which is provided a needle holder (2) axially movable between an advanced position wherein the needle (7) goes beyond the distal end of the tubular sleeve (1) and a retracted position wherein the needle (7) is fully retracted in the tubular sleeve (1). The tubular sleeve (1) has an internal section corresponding substantially to the external section of the syringe body (26), means (9, 30) for limiting the displacement of the needle holder (2) in the forward direction and at its rear part a second locking means (10, 36) providing for the passage of the needle holder (2) in a rearwards direction and preventing the return of the needle carrier into an advanced position.
Patent CA-2184071-A1 (CA)
Inventor: AASETH ALLEN
IPC: B28B3/06
Filed: 1994-11-16
Abstract: A mold box (85) is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams (26, 28). A feed drawer (14) dispenses concrete material into the mold box while a vibration system (15) vertically vibrates the mold box while dampening horizontal vibration. The vibration system is driven by a single drive shaft (111) that actuates first and second vibrator rods (90) while at the same time rotating a counter-weight (121) in a counter-rotating direction. A set of alignment brackets (87) lock the mold box into a predetermined aligned relationship while being mounted in the product forming machine. The bottom side of each mold box is mounted to the product forming machine in the same relative position to reduce machine, readjustments. A set of telescoping legs (60) hold the feed drawer assembly variable distances above the mold box. A utilized pallet feeder (39) quickly moves pallets (91) one at a time to the mold box.
Patent CA-2184821-A1 (CA)
Title: Turbine combustor cooling system
Inventor: MYERS GEOFFREY D
IPC: F23R3/08
Filed: 1994-03-23
Abstract: A gas turbine engine has a low cost combustor liner cooling system combining the benefits of high internal heat removal with improved film cooling by employing a large number of strategically positioned, laser-drilled cooling passages (28). Cooling air flows through these specially tailored passages (28) to absorb heat from the liner (20) prior to injection as a protective film on the interior surface. The passages (28) are set in staggered rows on a thickened portion of the liner (20) and have a rough internal heat transfer surface and an exit with a steep injection angle (34B) to evenly distribute the cooling film along the interior surfac of the liner.
Patent CA-2185177-A1 (CA)
Inventor: SIGLIN DONALD J
IPC: E02B3/10
Filed: 1996-09-10
Abstract: An environmental control dike system constructed of a plurality of bolted steel sections supported by steel posts set in concrete below average frost depths, the interior area of the steel wall having a synthetic liner cover with mating geotextile pad, joined to the flanged top of the steel wall by a plurality of  V-shaped steel clamps sized to securely form the synthetic liner and geotextile pad, compressed gently but firmly, into a 180 degree fold around the flanged top of the steel wall, the  V-shaped steel clamp being held securely in place by a plurality of self drilling screws into the top flange of the steel wall. The connection between the steel wall and steel posts is secured with two bolts having a gasketed steel washer under the head of the bolt, the bolt passes through a round hole in the steel wall and through a slotted hole in the post allowing differential movement due to frost heaving between the post and the wall, the post having been set in concrete below average frost depth moves very little due to frost heaving of the soil, the wall sheet placed no more than six inches into the soil will be moved a greater distance due to frost heaving, the bolt passing through the slotted opening in the post having a concentric steel bushing with a dimension greater than the thickness of the steel post when the nut is tightened on the bolt prevents subsequent locking action between the post and the wall. The posts can support a fencing system thereby avoiding the need to install a duplicate system.