baber/WOPTO huggingface dataset:
Patent CA-2026232-A1 (CA)
Title: Bidirectional light waveguide (lwg) telecommunication system and method for wavelength separation mode (bidirectional wavelength separation mode (wdm) between a central telecommunication location and a plurality of decentralized telecommunication location
Inventor: PANZER KLAUS
IPC: H04B10/12
Filed: 1990-09-26
Abstract: ABSTRACT OF THE DISCLOSURE   In a bidirectional light waveguide telecommunication system having a passive light waveguide bus network extending between a switching center and a plurality of subscriber locations, only the switching center is designed for a normal bidirectional wavelength division multiplex operation and is provided for this purpose with an electro-optical transmission element, an opto-electrical receiving element and an optical filter, whereas only a combined opto-electrical receiving/electro-optical transmitting module that respectively works only in the time separation mode and is designed for emitting light having a wavelength for reception by the opto-electrical receiving element of the switching center is provided in the subscriber locations. In this combined receiving/transmitting module, the transmitting diode can be used, in alternation, as a receiving diode; alternatively thereto, the combined receiving/transmitting module can be formed with a laser module provided with a laser diode transmitted and with a monitor photodiode which is used, in alternation, as a receiving diode.
Patent CA-2026718-A1 (CA)
Title: Device for the re-education of a limb
Inventor: GRENOUILLET GUY
IPC: A63B23/16
Filed: 1990-10-02
Abstract: ABSTRACT OF THE DISCLOSURE     A device for the re-education of a limb comprising a motor element made of shape memory alloy, which possesses at least one shape memory state corresponding to a specific configuration, control means for bringing the motor element into the said shape memory state and mechanical attachment means for securing at least a part of the motor element to a part of the limb to be re-educated.
Patent CA-2028068-A1 (CA)
Inventor: O'CONNOR CHADWELL
IPC: F16M11/12
Filed: 1990-10-19
Abstract: A camera panhead, for panning the camera about a vertical axis and tilting the camera about a horizontal axis, including fluid drag systems and a counterbalance system.  The fluid drag systems each include a drag disk assembly secured to the rotating shaft and drag sector assemblies pivotally mounted to the housing and disposed about the circumference of the disk assembly to define a space containing viscous fluid.  The level of drag exerted may be adjusted by pivoting the sector assemblies toward or away from the disk assembly to vary the space containing viscous fluid.  The counterbalance system includes spring sets mounted in planes substantially perpendicular to the tilt axis.  As the camera tilts, one end of each of the springs remains relatively stationary as the opposite ends rotate about the tilt axis to exert a restoring torque to counterbalance the camera.  The restoring torque exerted follows a sinusoidal curve such that it closely approximates the torque created by the platform and the supported instrument.  Further, the system may be adjusted to vary the level of restoring torque exerted.
Patent CA-2031360-A1 (CA)
Title: Method and apparatus for srt division using gray coded quotient bit signals
Inventor: AVNON DROR
IPC: G06F7/483
Filed: 1990-12-03
Abstract: Abstract of the Disclosure A method and apparatus for performing SRT division, in which Gray coded quotient bit signals are generated during each iteration from a divisor signal having Gray coded bits, and a dividend signal. Preferably, only the two most significant bits of the divisor signal are encoded into Gray code at the start of the division process, and the Gray coded quotient bit signals are decoded after each iteration, or after the final iteration, for use in generating the final quotient. In a preferred embodiment, the invention is a circuit capable of performing both single-precision and double-precision operations, and includes a pair of alternately operating divider block circuits each for generating a pair of quotient bits during each iteration cycle. The quotient bits emerging from each divider block circuit are decoded, and then shifted into one of two divider result registers depending upon their sign until 56 quotient bits (for double-precision operation) or 28 quotient bits (for single-precision operation) are accumulated in the divider result registers. When sufficient quotient bits have been accumulated, The invention asserts the contents of the divider result registers, a remainder sum register, and a remainder carry register, as output signals which may be combined to generate a final quotient signal.
Patent CA-2036067-A1 (CA)
Title: Process and apparatus for controlling a fluid catalytic cracking unit
Inventor: SABOTTKE GRAIG Y
IPC: B01J8/18
Filed: 1991-02-11
Abstract: ABSTRACT OF THE DISCLOSURE           The invention is directed to a process  for controlling  a  fluid  catalytic  cracking  unit.   In particular, the  invention is  directed to  a  process wherein the  introduction  of feed  into  a  catalytic cracking zone  is  effected by  feed  injectors  which optimize the  atomization  of  the feed  in  order  to achieve a desired  product yield,  product quality  or reactor temperature.
Patent CA-2036070-A1 (CA)
Title: Vinyl polyether alcohols
Inventor: FISCHER MARTIN
IPC: C09K23/52
Filed: 1991-02-11
Abstract: Vinyl polyether alcohols Abstract of the disclosure:          Vinyl polyether alcohols of formula I             I   (R = C1-C25-alkyl, C2-C25-alkenyl or alkylaryl having a total of not more than 20 carbon atoms, A = 1,2-alkylene having from 2 to 4 carbon atoms and n = 1 to 20).          These compounds serve as intermediates in the preparation of polyether sulfonates of formula III                               III          (M = hydrogen, alkali metal or ammonium).          The vinyl polyether alcohols of formula I are useful as surface-active compounds for inclusion in surface-active compositions.
Patent CA-2037724-A1 (CA)
Title: Dielectric resonator with micro-wave metallic strips and device using such a resonator
Inventor: FORTERRE GERARD E
IPC: H01P7/08
Filed: 1991-03-07
Abstract: ABSTRACT OF THE DISCLOSURE     A dielectric resonator comprising a pattern of metallic micro-wave strips deposited onto a dielectric substrate with a high relative permittivity and of general annular shape formed with  a  slot,  the  resonator  comprising  an  inverse  feedback circuit including an active element such as a transistor and being usable for instance in band-cut or band-pass filters.            Figure 2.
Patent CA-2040395-A1 (CA)
Title: Opening device for flexible packaging
Inventor: WADE STEVEN EARL
IPC: B65D3/26
Filed: 1991-04-15
Abstract: ABSTRACT An opening device for flexible packaging is provided to concentrate tearing forces and provide increased tearing leverage, facilitating the opening of the packaging without the need for a sharp object to initiate the tear, the opening device having first and second wings spaced apart from one another at a narrow distance and joined at a proximal end by an integral web, which acts as a fulcrum for each of the wings as they are rotated to initiate the tear.  The opening device is securely fastened to a peripheral edge of the package and a predetermined portion of the first and second wings extend outwardly away from the peripheral edge, the wings serving as gripping surfaces which are rotated apart from one another in initiating the tear in the package.
Patent CA-2041816-A1 (CA)
Title: Non-bioaccumulable pesticides
Inventor: COULSTON FREDERICK
IPC: C07C62/06
Filed: 1991-05-03
Abstract: ABSTRACT     Novel pesticidal compositions, which are characterized by biodegradability and do not bioaccumulate to an unacceptable level in fats and tissues of animals, fowl and fish, containing active compounds and optionally a carrier suitable for administer-ing said compounds to a pest by contact, ingestion or inhalation, are disclosed. Such compositions comprise in addition to the carrier compounds of formula (1), where R is H, Cl or other Hal, hydroxyl, lower alkoxyl, lower alkyl, cyano, CONR2 or NR2, where R2 is H or lower alkyl; X and Y may be R, and when taken together may be -0- or a saturated or unsaturated mono-cyclic or bicyclic group which may be substituted with R, epoxide, carboxy or carboxymethyl group; and the unsaturated an-alogs thereof wherein the unsaturation occurs at at least one of the 2 or the 5 positions, and wherein unsaturation may occur optionally in the ring formed by X and Y taken together; with the further proviso that said compound has between 4 and 6 halogens; and a carrier for said compound. Methods of using such pesticides to kill or disable pests are disclosed. Certain novel compounds within the group and novel methods of making said compounds are disclosed.
Patent CA-2043836-A1 (CA)
Title: High performance high strength low alloy steel
Inventor: BANGARU RAO V
IPC: C21D6/00
Filed: 1991-06-04
Abstract: ABSTRACT OF THE DISCLOSURE     A high strength, low alloy, low to medium carbon wrought or cast steel is provided of the Fe/Cr/C type, said steel characterized by  the presence  of  a  small  but  effective amount  of  each of  Cu  and Ni  sufficient to  enhance  the mechanical stability of retained austenite formed following quenching of said steel from its austenitizing temperature.          Preferably  the  steel  also  includes  small  but  effective amounts  of Al,  Ti  and Nb  sufficient to provide  a  fine grained microstructure.
Patent CA-2044623-A1 (CA)
Inventor: RECTOR JAMES W
IPC: E21B47/12
Filed: 1990-01-19
Abstract: The invention is a method for improving quality of seismic data generated with a source (34) positioned substantially at the lower end of a drill string within a wellbore. A pilot signal is detected at the upper end of the drill string for cross-correlation with signals detected by field sensors (8, 9) positioned at the earth's surface displaced from the wellbore. Noise is reduced in the pilot signal by detecting the noise with a sensor (7) positioned to be sensitive to the noise but substantially insensitive to the acoustic signal transmitted up the drill string from the source. The frequency band within which there is high coherence between the energy in the noise signal and the pilot signal is determined. The noise signal is then amplified by a factor equal to the average ratio of the energy amplitude of the pilot signal to the noise signal within this frequency band, and this weighted noise signal is substracted from the pilot signal to reduce the noise in the pilot signal.
Patent CA-2046976-A1 (CA)
Title: Locking means and panel assembly incorporating such locking means
Inventor: HANNA RONALD D
IPC: E04B2/74
Filed: 1991-07-12
Abstract: A new attachment plate is provided for securing components of panel assemblies to a mounting post, the attachment plate incorporating a securing hook together with a stop means. The attachment plate includes a projecting hook which mates with a slot in a mounting post structural member. The hook is of a lesser length than the slot in the post, and a further projection as a stop means is provided on the attachment plate which also enters the slot and restrains reversed relative movement between the plate hook and the post slot, so as to limit or prevent undesired disassembly of a panel from the post.      The application of an upward impact to the plate causes a cam surface on the stop means to contact the upper end of the mounting post slot. This deflects the stop means out from the slot, to enable removal of the hook from the slot, for panel disassembly from the post. Also provided is a hooked supporting plate incorporating pairs of flexible presser tabs, to compensate for manufacturing tolerances. The laterally extending tabs engage outer surfaces of the mounting post and provide stabilization of a multi-panel assembly against sway.
Patent CA-2047383-A1 (CA)
Title: Stabilized monomer compositions
Inventor: GATECHAIR LESLIE R
IPC: C07C57/075
Filed: 1991-07-18
Abstract: Stabilized monomer compositions Abstract of the Disclosure A process for stabilizing an ethylenically unsaturated monomer or oligomer from premature polymerization is disclosed whereby a stabilizing amount of an N-hydro-carbyloxy substituted hindered amine is added to said polymerizable monomer or oligomer. The ethylenically unsaturated monomer or oligomer encompass vinyl monomers or oligomers bearing at least one polymerizable moiety. The N-hydrocarbyloxy substituted hindered amine inhibits premature polymerization in the liquid and/or vapor phase.
Patent CA-2048259-A1 (CA)
Title: Gaseous fuel distributor/injection pump
Inventor: HOWE WILLIAM H
IPC: F02M59/10
Filed: 1991-07-31
Abstract: ABSTRACT OF THE DISCLOSURE   This device is a mechanically driven rotary injection pump to meter and inject precise quantities of high pressure Natural Gas directly into the combustion chambers or inlet ports of multi-cylinder Internal Combustion Engines so as to improve  the  economy of operation and  reduce  polluting  emissions into  the atmosphere.
Patent CA-2048686-A1 (CA)
Inventor: INANAGA KIYOFUMI
IPC: H04S1/00
Filed: 1991-01-18
Abstract: In the audio signal reproducing apparatus, information on the transfer characteristics representative of the transfer characteristics from virtual sound sources to both ears of a listener in at least a first quadrant of the rotational angular position of the head M of the listener is stored in storing means 22. The transfer characteristics in rotational angular position of the head M represented by detection outputs from detecting means 5L, 5R and 13 for detecting the rotational angle position depending upon the movement of the head of the listener are formed based upon the transfer characteristics information of at least the first quadrant stored in the storing means and left and right channel audio signals are processed by audio signal processing means 23 for achieving a proper binaural reproduction relative to the virtual sound sources.      Also in the audio signal processing apparatus of the present invention, information on the transfer characteristics from virtual sound sources to both ears of a listener for each given rotational angle depending upon the movement of the head M of the listener is stored in storing means 62. The rotational angular position of the head of the listener is detected by detecting means 45L, 45R and 53 at a solution higher than that of the information of the transfer characteristics stored in said storing means. The information on at least two transfer characteristics in the vicinity of the rotational angular position represented by the detection outputs from detecting means is read from the storing means. The information on the transfer characteristics in the rotational angular position of the head represented by the detection output is interpolation operated by interpolation operating means 61. Based upon the information on the transfer characteristics determined by the interpolation operation means, left and right channel audio signals are processed by audio signal processing means 63 for achieving a proper binaural reproduction relative to the virtual sound sources.
Patent CA-2049420-A1 (CA)
Title: Railcar brake tester
Inventor: TEWS BERNARD L
IPC: F16D66/00
Filed: 1991-08-16
Abstract: Abstract Of The Disclosure A brake tester for measuring static force levels of the brake shoes and hand brake, and the pressure level of the brake cylinder of a railcar.  Brake shoe load cells are used to measure brake shoe forces by creating point contact with the railcar wheel and undergoing deflection during application of a brake force.  A clevis load cell measures hand brake force by simulating the clevis and produces an output from a plurality of strain gauges.
Patent CA-2055495-A1 (CA)
Title: Device for delivering corrosion or deposition inhibiting agents into a well by means of an auxiliary delivery tube
Inventor: LUCET RAYMOND
IPC: E21B37/00
Filed: 1991-02-22
Abstract: A new auxiliary injection tube concept is disclosed for injecting a fluid containing corrosion and/or deposit inhibiting agents into a well from the surface, without stopping working. The invention comprises a tube (10) conveying the injected agents, coated with a material (11) which is inert with respect to the fluid collected by the well and support cables (12), disposed about the tube (10) and also coated with material (11) providing both secondary protection of the tube (10) in the case of damage to coating (11) and the mechanical characteristics required for the injection tube, particularly during withdrawal form the well.
Patent CA-2055838-A1 (CA)
Title: Use of halogen-containing organic stabilizers for 3-isothiazolones
Inventor: DERBYSHIRE RONALD L
IPC: C09K15/28
Filed: 1991-11-19
Abstract: ABSTRACT OF THE DISCLOSURE        A method of stabilizing 3-isothiazolones against chemical degradation in antagonistic environments by the use of certain activated halogen compounds is disclosed. Compositions including 3-isothiazolones and alkyl halohydantoins, halo-substituted triazinetriones, N-halosuccinimides, p-toluenesulfonyl halides, haloacetic acids and alkyl sulfamoyl halides are found to be particularly stable in metal working fluids and latex paints.
Patent CA-2058508-A1 (CA)
Title: Method and apparatus for recovering substance adhered to object to be processed
IPC: B08B7/00
Filed: 1991-12-27
Abstract: A method for recovering substance such as zincing or the like adhered to the surface of an object to be processed, by causing such materials to be evaporated in a vacuum.  In this method, the object to the processed is placed in a furnace provided with heating means; the temperature within the furnace is elevated up to a predetermined level with the aid of an oxidizing gas atmosphere; the pressure in the furnace is reduced so that the quantity of the oxidizing gas is reduced to be below the explosion limit; and a reducing gas atmosphere is fed into the furnace to reduce the oxidization of the object to be processed. Thereafter, the interior of the furnace is evacuated while being maintained under a predetermined evaporation temperature condition; and the substance evaporated from the object to be processed is passed to recovery means provided in communication with the furnace, so that the substance thus evaporated is condensed in the recovery means and recovered therefrom.
Patent CA-2060994-A1 (CA)
Inventor: SIBALIS DAN
IPC: A61N1/30
Filed: 1992-02-11
Abstract: An electrical transdermal drug applicator provides enhanced drug flow to the bloodstream of the subject by delivering a primary drug into a subject's circulatory system for therapeutic purposes, and delivering from the same or other reservoir a non therapeutic counteracting agent to the skin of the patient which induces flow enhancement and allows delivery of the primary drug systemically over a longer period of time and in greater quantity than heretofore appeared possible using electric current.
Patent CA-2062499-A1 (CA)
Title: Cargo area structure
Inventor: WAYNE MARK
IPC: B62D33/02
Filed: 1992-03-09
Abstract: ABSTRACT A cargo area structure for a pick-up truck includes partitions for selectively dividing the cargo area structure  into a number  of smaller  areas of various configurations to retain cargo of various sizes against movement as the cargo is being transported by the truck, and a closure structure for enclosing the selected cargo area structure with a movable cover.
Patent CA-2065086-A1 (CA)
Title: Cycloalkylurea compounds
Inventor: MISHINA TADASHI
IPC: C07D333/36
Filed: 1992-04-03
Abstract: ABSTRACT        A cycloalkylurea compound of the formula (I):       (I) wherein Rl is a group of the formula (a):       (a) (wherein R6, R7 and R8 are the same or different and each is hydrogen or alkyl having 1 to 8 carbon atoms, with the proviso that compounds wherein two or three of R6, R7 and R8 are hydrogens are excluded), haloalkyl, cycloalkyl, alkoxy having 1 to 5 carbon atoms, phenyl, aralkyl or heteroaryl, or phenyl, aralkyl or heteroaryl each substituted on the aromatic ring by 1 to 3 substituents selected from alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 8 carbon atoms, cycloalkyl, cycloalkyloxy, haloalkyl, haloalkoxyl halogen, nitro, amino and substituted amino;       R2 is hydrogen, phenyl or phenyl substituted by 1 to 3 substi-tuents selected from alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, haloalkyl and halogen, whererin R1 and R2 may be substituted on the same carbon atom of cycloalkyl ring;       R1 and R2 together may form a substituted or unsubstituted cyclic hydrocarbon having 3 to 7 carbon atoms or a substituted or unsubstituted spiran;         R3 is hydrogen, alkyl having 1 to 8 carbon atoms, cycloalkyl, cycloalkylalkyl, alkoxyalkyl, alkylthioalkyl, aralkyl substituted by alkylenedioxy, aralkyl, aralkyloxyalkyl, aralkyl or aralkyloxyalkyl each substituted on the aromatic ring by 1 to 3 substituents selected from alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 5 carbon atoms, halogen, nitro, hydroxy, amino, substituted amino, haloalkyl, alkylthio, benzyloxy and benzylthio, heteroarylalkyl, phenoxyalkyl, or heteroarylalkyl or phenoxyalkyl each substituted on the aromatic ring by 1 to 3 substituents selected from halogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, nitro, amino and haloalkyl, or a group of the formula (c) or (d):       (c)   (d) wherein m is 1 or 2, R11 is hydrogen or alkyl having 1 to 4 carbon atoms, R12 is hydrogen, alkyl having 1 to 4 carbon atoms or aralkyl;       R4 is phenyl substituted by 1 to 3 substituents selected from alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, haloalkyl, halogen, amino and substituted amino; n is 1, 2 or 3; or a pharmaceutically acceptable salt thereof, which compound inhibits ACAT and is useful as hypolipidemic and anti-atherosclerotic medicine.
Patent CA-2065162-A1 (CA)
Title: Rotary actuator and valve control system
Inventor: LEETE BARRETT C
IPC: F16K31/12
Filed: 1992-04-06
Abstract: ABSTRACT      An oscillatory rotary actuator is provided for controlling an adjustable valve. The actuator comprises a freely rotating, cylindrical housing with concentric inner and outer walls about its center. The housing has at least one depending vane, which functions as a rotary piston, that is radially disposed between the inner and outer walls.      The rotary actuator further comprises an annular chamber easing which has two concentric walls that are designed to mate between the inner and outer walls of the housing member to receive the depending vane(s) between the concentric walls of the chamber casing. At least one radially extending chamber wall is interposed and attached to the concentric walls of the chamber casing. When the housing member is fitted over or receives the annular chamber casing, the housing, chamber easing and chamber wall collectively form at least one rotary chamber for the arcuate movement of the depending vane, or rotary piston, therein.      A valve control system is also provided for the operation of an adjustable valve for controlling the flow of fluid therethrough from a control module located at a distance from the valve, The valve can be operated as a function of a desired valve position utilizing actuator position feedback sensing; desired fluid pressure utilizing pressure feedback sensing; or desired fluid flow rate utilizing flow feedback sensing.     51       Docket No. NR-101 The adjustable valve is preferably one that has a quarter turn from the open to the close position, such as a ball valve or butterfly valve.   52      Docket No. NR-101
Patent CA-2066417-A1 (CA)
Title: Antiperspirant
Inventor: COE CRAIG M
IPC: A61Q15/00
Filed: 1990-09-13
Abstract: An anhydrous antiperspirant product includes an anhydrous carrier vehicle; an antiperspirant active salt suspended in particle form in the vehicle; and a substantially nonvolatile masking agent of the type interactive with the antiperspirant to essentially eliminate discernible whitening without substantially inhibiting the antiperspirant activity of the salt when the product is applied to the skin.