baber/WOPTO huggingface dataset:
Patent CA-2082511-A1 (CA)
Title: Polyvinylidene fluoride membrane
Inventor: BECK THOMAS W
IPC: C08J9/28
Filed: 1991-05-09
Abstract: A method of making a porous polymeric material by heating a mixture comprising polyvinylidene fluoride and a solvent system initially comprising a first component that is a latent solvent far polyvinylidene fluoride and a second component that is a non-solvent for polyvinylidene fluoride wherein, at elevated temperature, polyvinylidene fluoride dissolves in the solvent system to provide an optically clear solution. The solution is then rapidly cooled so that non-equilibrium liquid-liquid phase separation takes place to form a continuous polymer rich phase and a continuous polymer lean phase with the two phases being intermingled in the form of bicontinuous matrix of large interfacial area, and cooling is continued until the polymer rich phase solidifies. The polymer lean phase is removed from the solid polymeric material. A porous material so prepared is characterised by a lacey or filamentous structure consisting of a plurality of polymer strands (1) connected together at a number of locations (2) spaced apart along each strand.
Patent CA-2083779-A1 (CA)
Title: Self correction of pst simulcast system timing
Inventor: BROWN THOMAS A
IPC: H04W84/08
Filed: 1992-11-25
Abstract: ABSTRACT OF THE DISCLOSURE      Arrangements are disclosed for maintaining time synchronization of simulcast radio frequency communications system transmissions.  A circuit continually instructs a modem to use the common system clocking signal, and modems are retrained whenever a channel is taken out of service because of a test call failure.
Patent CA-2088486-A1 (CA)
Title: Greenhouse heating system
Inventor: DEMERITT PAUL A
IPC: A01G9/24
Filed: 1992-06-05
Abstract: A readiant heating system for a greenhouse (10) utilizing radiator tubing (40, 42, 44) formed from substantially gas im-permeable plastic material. The system includes a radiator tube (40) disposed overhead and formed from light transmitting mate-rial so that sunlight projecting into the greenhouse will be substantially transmitted to the plants grown thereunder and a second radiator tubing (42) disposed proximate the greenhouse floor and formed of similar plastic material. The radiated tubes are inter-connected at one of their ends and a burner (20) communicates through manifold connected to the other ends of the radiator tubes to transmit a heated effluent through the tubes. Valve means (34) and exhaust means (82) are associated with the manifold.
Patent CA-2088639-A1 (CA)
Title: A railway signalling system with two-way data transmission
Inventor: GILL DAVID C
IPC: B61L23/34
Filed: 1993-02-02
Abstract: In a railway signalling system, to achieve inter-vehicle headway spacing for railway vehicles (1) travelling on a track (T), there are a) control of vehicles by fixed block signalling and b) control of vehicles by moving block signalling via communication between vehicles. The moving block signalling occurs within a moving block control zone of the track and the fixed block signalling occurs outside that zone, there being the facility of two-way data transmission between vehicles throughout the moving block control zone and the fixed block signalling system not preventing a further vehicle from entering the moving block control zone when another vehicle is already in that zone and receiving a transmission via the moving block signalling system.
Patent CA-2092729-A1 (CA)
Title: Method for inducing immunosuppression
Inventor: SEHGAL SUREN N
IPC: A61K38/00
Filed: 1993-03-26
Abstract: ABSTRACT   This invention provides a method of inducing immunosuppression in a mammal in need thereof which comprises, administering an antirejection effective amount of 29-demethoxyrapamycin alone or in combination with one or more antirejection chemotherapeutic agents.
Patent CA-2096168-A1 (CA)
Title: Bearing Cap Spreader
Inventor: JONES JOEL W
IPC: B66C1/42
Filed: 1993-05-13
Abstract: Apparatus for moving workpieces from a relatively close spacing to a relatively distant spacing includes a block supporting a gear shaft for rotation, the gear shaft defining at least one pinion gear and at least two elongated rack elements which engage the pinion gear at diametrically opposed location, so thatrotation of the gear shaft causes the racks to slide in opposite directions. Theracks are connected to gripping devices which can grip the workpieces for movement therewith.
Patent CA-2098107-A1 (CA)
Title: Polymorphs of crystalline mupirocin
Inventor: GREENWAY MICHAEL J
IPC: C07D407/06
Filed: 1991-12-06
Abstract: Two further crystalline polymorphic forms of the anti-infective agent mupirocin have been identified. Processes for the preparation thereof and the use thereof are described.
Patent CA-2099261-A1 (CA)
Inventor: MAURO DAVID
IPC: C09J103/02
Filed: 1992-06-17
Abstract: Dextrine blanche d'amidon de maïs cireux, produisant une pâte d'une couleur et d'une limpidité de grande qualité, et ne nécessitant pas de blanchiment, comparativement à des dextrines d'amidon de maïs cireux.
Patent CA-2099726-A1 (CA)
Title: Apparatus for peeling fruits or vegetables
Inventor: NEIDIGH RONNIE C
IPC: A23N7/02
Filed: 1993-06-29
Abstract: PATENT IN THE UNITED STATES PATENT AND TRADEMARK OFFICE     APPARATUS FOR PEELING FRUITS OR VEGETABLES   Abstract of the Invention Apparatus for continuously peeling fruits or vegetables comprising a substantially horizontal rotary drum having its wall formed by a plurality of circumferentially-spaced parallel shafts, each shaft being individually rotatable about its own axis and having an abrasive surface, means for rotating the drum in one direction and means for rotating the shafts in the opposite direction, a rotatable helicoidal conveyor mounted concentrically within the drum and with its periphery adjacent the interior surface of the drum and means for rotating the conveyor in a direction opposite to that of the drum. The apparatus further includes a set of rollers located at one end of the drum which support registration of the rotating abrasion shafts with the means for rotating the abrasion shafts.
Patent CA-2102555-A1 (CA)
Title: Bicycle supported tent
Inventor: KERN WOLFGANG
IPC: E04H6/00
Filed: 1993-11-05
Abstract: ABSTRACT OF THE DISCLOSURE        A tent, comprising an awning, is supported by a bicycle arranged in a principal plane to form at least one crest line. The bicycle is spanned on both sides of the principal plane by spanning means being anchored in the ground and being attached to said awning, particularly by means of cords and tent pegs.
Patent CA-2102690-A1 (CA)
Title: Towbar
Inventor: WOODRUFF GRAHAM
IPC: F16B7/20
Filed: 1992-05-12
Abstract: A towbar is disclosed comprising a plurality of sections which lock together to form a single length, the two sections at opposite ends of the assembled towbar having couplings to attach to respective vehicles and the adjoining ends of adjacent assembled sections each comprising a connecting member, one male (1; 20) and one female (2; 21), one of the connecting members including a locking member (5; 26) which locks the male connecting member within the female connecting member.
Patent CA-2103385-A1 (CA)
Title: Machine including apparatus for accounting for malfunction conditions
Inventor: GALLAGHER DENNIS M
IPC: G07C3/00
Filed: 1993-11-18
Abstract: In a machine including structure for printing indicia on a sheet, and structure for feeding the sheet in a path of travel to the printing structure, wherein the feeding and printing structure each include a plurality of components, apparatus for accounting for malfunction conditions of the machine, the apparatus comprising, structure for controlling the machine, the controlling structure including a microprocessor, the controlling structure including a random access memory (RAM) and a non-volatile memory (NVM) respectively connected to the microprocessor, the microprocessor programmed for causing a plurality of desired movements of the respective components of the sheet feeding and printing structure and thus of a sheet in the path of travel, a plurality of sensors respectively connected to the microprocessor for sensing actual movements corresponding to the desired movements of the respective components of the sheet feeding and printing structure and of a sheet in the path of travel and providing signals to the microprocessor, The microprocessor programmed for determining whether the differences between corresponding desired and actual movements are acceptable, and the microprocessor programmed for storing data in both the RAM and NVM corresponding to malfunction conditions identifying respective unacceptable differences.
Patent CA-2103683-A1 (CA)
Inventor: WEEKS GEORGE
IPC: B01J2/30
Filed: 1993-08-05
Abstract: Method of treating dry, free flowing, dust forming compositions with selected liquids to agglomerate a portion of the particles into groups of particles of sufficient size so that the treated compositions are substantially dust free and retain their free flowing properties, and the compositions produced by such treatment.
Patent CA-2104070-A1 (CA)
Inventor: DENNEAU MONTY M
IPC: H04L69/40
Filed: 1993-08-13
Abstract: A communication system segment having phase multiplexing.  A first communication station contains a data  source which sequentially outputs  a series  of  data  signals  during  a series of clock periods.  The data source outputs one data signal from the series during each clock period.  The first communication  station  also  contains  a  transition buffer which has  an input connected to the output of the data source.   The transition buffer has a first-in,  first-out mode in which the transition buffer stores a series of Q data signals output from the data source during the most recent Q clock periods, where Q is an integer greater than zero.   A  second  communication  station  contains  a  data receiver which sequentially inputs a series of data signals during a series of clock periods.  The data receiver inputs one data signal from the series during each clock period. A communication line connects the output of the data source to the  input of  the data  receiver.   A  synchronizer may be provided  for  synchronizing  occurrences  of  information transfer phases  of  the  first  communication  station with occurrences of corresponding information transfer phases of the second communication station to a synchronization offset X equal to the number of clock periods of the system clock by  which  occurrences  of  each  phase  of  the  second communication station lag occurrences of the corresponding phase of the first communication station.
Patent CA-2105371-A1 (CA)
Inventor: GUGLIELMETTI LEONARDO
IPC: D06L3/12
Filed: 1993-09-01
Abstract: Process for preparing distyrylbiphenyl compounds Abstract of the disclosure:   Process for preparing distyrylbiphenyl compounds by condensation of a substituted or unsubstituted 4,4'-bis(dialkoxyphosphonomethyl)biphenyl compound with a substituted or unsubstituted benzaldehyde in liquid ammonia as the solvent and in the presence of strong bases; and the use of these distyrylbiphenyl compounds as fluorescent whitening agents.
Patent CA-2112643-A1 (CA)
Title: Acidic composition and process of using same
Inventor: ONWUMERE FIDELIS C
IPC: C09D9/00
Filed: 1993-12-30
Abstract: ABSTRACT OF THE DISCLOSURE Acidic compositions having pH ranging from about 2.0 to about 5.0 are described which comprise a water-soluble organic solvent, an acid present in sufficient amount to provide the desired pH, and water. Preferably, the compositions comprise an organic acid present in an amount to render the composition pH from 2.0-5.0, a combination of water-soluble glycol ether solvents having differing numbers of ether groups, with the balance being water.  The compositions are advantageous in that they do not require surfactants, couplers or other wetting agents to remove coatings containing polymers having free amine groups.
Patent CA-2112767-A1 (CA)
Inventor: CESARO CLAUDE
IPC: H04Q1/457
Filed: 1994-01-04
Abstract: Tone-detection method for a call-progress process which detects at least one tone in a multifrequency dual-tone signal in a telecommunication apparatus having digital signal processing resources. The method involves the step of:            - computing (201) the value of the energy of the signal, - processing (201) said received signal to determine the existence of one or twotones in said signal, - applying a second-order or fourth-order autoregressive process in response to said determination and performing (203, 208) a first estimation of the autoregressive parameters of said received signal, - performing a digital band-pass filtering operation (205,210) adjusted to the result of the estimation of said autoregressive parameters to provide a partial elimination of the noise existing on said received signal, - reapplying (205, 210) a second-order or fourth-order autoregressive process in response to said determination and performing a final estimation of the autoregressive parameters of said received signal, - computing (206, 211) the values of the frequencies each tone from the value of said estimated parameters.   The determination of the number of tones existing in the signal is achieved by the computation of the ratio:                  which is theorically equal to 2 in the case of a unique tone, and conversely should be 4 in that of a dual tone. The first and final second-order autoregressive process are based on the predicting function having the z-transfer function:                  and which is associated with a Least Mean Square algorithm continuously adapting the parameters of the predictor in a sense allowing the minimizing of an error signal. On the other hand, the first and final fourth-order autoregressive process are based on the predicting function having the z-transfer function:                  To increase the accuracy of the tone-detection mechanism, the second-order autoregressive function is performed with the value of a2 parameter being constantly fixed to -1. Similarly, the fourth-order autoregressive process is performed with the values of a3 and a4 being respectively equal to a? and -1. The digital filter which provides the suppression of most of the noise existing in the signal having an unique tone is based on the z-transfer function:                  In the case of a dual-tone, the filtering is based on the function:                  Fig. 2
Patent CA-2113248-A1 (CA)
Title: Surgical Saw
Inventor: HEMPEL DIETRICH
IPC: A61B17/14
Filed: 1994-01-11
Abstract: A surgical saw comprising an elongate saw shaft (10), a sector-shaped saw blade (11) secured to the shaft (10) and having a number of outer teeth, holding means including a handle (12), the saw shaft (10) rotatably mounted in the holding means, a second shaft (14) also rotatably mounted in the holding means, and mounted coaxially and exteriorly with respect to the saw shaft (10), both shafts (10,14) being rotatable with respect to the other and lockable in a predetermined angular position in the holding means, an eccentric member (15) mounted to a free end of second shaft (14) close to the saw blade (11), and the saw blade (11) and the eccentric member (15) extending radially outwardly a predetermined selected distance so that they can be inserted into a hollow bone, wherein the holding means comprise a pair of members comprising a base plate (13) and an adjusting plate (17) rotatably mounted an operatively connected with respect to each other, the adjusting plate (17) being fixed to the saw shaft (10) and the base plate (13) being fixed to the second shaft, and wherein the adjusting plate (17) is mounted to said handle (12), and releasable means to adjust the adjusting plate (17) relative to the base plate (13), wherein the saw shaft (10) and second shaft (14) are guided in a gripping tube (21) wherein the gripping tube (21) has a free end and includes a stop (26) at the free end, wherein the gripping tube comprises a first and a second tube portion (24,23) movable with respect to each other, the first tube portion (24) being fixedly secured to the holding means and the second tube (23) portion including the stop (26), wherein the first and the second tube portions are threaded to each other and can be locked in relative positions with respect to each other by means of a locking nut provided on the first tube portion to engage a front end of the second tube portion. <IMAGE>
Patent CA-2114330-A1 (CA)
Title: Rotatable curved instrument
Inventor: LUCEY PAUL V
IPC: A61B19/00
Filed: 1994-01-27
Abstract: ROTATABLE CURVED INSTRUMENT                    ABSTRACT       A surgical instrument in which a surgical tool is carried distally of a bend region in a stationary support member by an assembly that transmits proximally applied forces and selectively change the rotational orientation of the surgical tool with respect to the stationary member.  In another respect, in which the stationary member does not include a bend region, a rotatable member supported by the stationary member transmits rotational force to the surgical tool to selectively change the rotational orientation of the tool, and a driver member supported by the stationary member transmits axial force to the surgical tool to operate it. In still another respect in which the stationary member includes the bend region but the surgical tool is not rotatable, a movable member supported by the stationary member is constructed to transmit a proximally applied axial force through the bend region to operate a surgical tool disposed in a distal region of the instrument.
Patent CA-2116465-A1 (CA)
Title: Antiviral polynucleotide conjugates
Inventor: CLIMIE SHANE
IPC: A61K31/70
Filed: 1994-02-25
Abstract: ABSTRACT   Ligand-binding duplexed structures having significantly enhanced stability underphysiological conditions are described. The structures are provided in the form of polynucleotide conjugates capable of adopting a duplexed structure, in which annealable polynucleotide strands are coupled covalently at one or both ends through a chemical linker which establishes a stabilizing bridge between strands. The present polynucleotide conjugates have therapeutic utility against viral infection as the polynucleotide strands thereof define a binding site for a viral regulatory protein, thereby inactivating the protein and preventing viral replication from occurring.
Patent CA-2117775-A1 (CA)
Title: Process for preparing macrocyclic chelating agents and formation of chelates and conjugates thereof
Inventor: CHENG ROBERTA C
IPC: C07K16/00
Filed: 1993-04-13
Abstract: The present invention is directed to an improved process for preparing macrocyclic chelating agents and for conjugating the macrocyclic chelating agents to biological molecules.
Patent CA-2118817-A1 (CA)
Title: Self locking time box
Inventor: MALBASA BRUNO
IPC: B65D55/02
Filed: 1994-03-11
Abstract: ABSTRACT OF THE DISCLOSURE        A storage container is intended for the long term secure  storage  of  documents,  memorabilia  and  the  like without the necessary accessibility and cost associated with conventional safety deposit boxes.  The container includes a rectangular container body and a matching container cap that fits telescopically over a neck on the body.  When the cap is installed,  it cannot be removed from the container body without permanently damaging the container.   The container has flanges along two diametrically opposed edges to engage in  mating  slots  on  the  other  edges  of  containers  of  a similar  configuration.   This  allows  the  containers to be stacked  for  storage.   A  cap  is  equipped  with  a  second compartment that is readily opened.  This second compartment may  be  used  to  store  instructions  or  identification materials as desired by the container owner.  The container may  be  equipped  with  purging  capability,  so  that  the container can be purged with an inert gas.
Patent CA-2118929-A1 (CA)
Title: (3s,4s)-delta-6-tetrahydrocannabinol-7-oic acids and derivatives thereof, processes for their preparation and pharmaceutical compositions containing them
Inventor: MECHOULAM RAPHAEL
IPC: A61P25/28
Filed: 1992-09-11
Abstract: The invention relates to novel compounds of formula (I) (see formula I) wherein R is a hydrogen atom or a C1-C5 alkyl group and R2 is selected from the group consisting of: (a) a straight-chained or branched C5-C12 alkyl radical; (b) a group -O-R4, wherein R4 is a straight-chained or branched C2-C9 alkyl radical which may be substituted at the terminal carbon atom by a phenyl group; (c) a group -(CH2)n-O-alkyl, wherein n is an integer of from 1 to 7 and the alkyl group contains from 1 to 5 carbon atoms, having the (3S,4S) configuration, essentially free of the (3R,4R) enantiomer. The invention also relates to process for the preparation of compounds of formula (I) as defined above. The invention further relates to pharmaceutical compositions which possess analgesic, anti-inflammatory, anti-emetic, anti-glaucoma, leukocytes antiadhesion or PAF activity, containing as active ingredient compounds of formula (I) as defined above.
Patent CA-2119489-A1 (CA)
Title: Hydrocolloid dressing
Inventor: FREEMAN FRANK
IPC: A61F13/02
Filed: 1994-03-21
Abstract: In accordance with the present invention a novel wound dressing providing superior absorption and preventing leakage is disclosed. The present dressing comprises a hydrocolloid-containing polymeric support layer either continuous or non-continuous and an occlusive backing layer overlying the support. In a preferred embodiment the present dressing further includes an adhesive on a skin-contacting surface of the support and an absorbent region interposed between the support and the backing layer.
Patent CA-2124020-A1 (CA)
Title: Fly's eye optics for raster output scanner in an electrophotographic printer
Inventor: GENOVESE FRANK C
IPC: G03F1/00
Filed: 1994-05-20
Abstract: In an apparatus for exposing a set of discrete locations on a photosensitive surface, such as an electrophotographic printer, a scanner transmits a light beam along a scan path onto the photosensitive surface. An optical element, interposed in the scan path between the photosensitive surface and the scanner, defines a plurality of apertures therein. The light beam transmitted through each aperture exposes a discrete location on the photosensitive surface.
Patent CA-2124403-A1 (CA)
Inventor: BERAN MARK A
IPC: E05F15/603
Filed: 1994-05-26
Abstract: Apparatus and method are disclosed for selective alteration and control of door movement modes, the apparatus being primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation.