baber/WOPTO huggingface dataset:
Patent CA-1213088-A (CA)
Inventor: BRADY DOUGLAS M
IPC: H04B3/23
Filed: 1984-04-19
Granted: 1986-10-21
Abstract: ECHO CANCELLER DYNAMIC RANGE EXTENSION by DOUGLAS MACPHERSON BRADY                    ABSTRACT OF THE DISCLOSURE         Echo cancellers provide echo return loss enhancement by sub-tracting a replica of the echo signal from the echo returned via the two-wire to four-wire transition.  The echo replica is derived from the signal incoming from the far end by signal processing which consists of a convolution and adaptive modeling that is used to model echo paths caused by the imperfections of the two-wire to four-wire transition.          An improved echo return loss enhancement (ERLE) is obtained by dynamic range compression of the incoming signal prior to processing and dynamic range extension following processing.  The range extension is slaved to a control signal from the range compressor, providing proper compensation for the compressed signal, but insuring that processing noise and other extraneous signals have been adversely treated.
Patent CA-1225975-A (CA)
Inventor: MARQUES SALVADOR ALIMBAU
IPC: E06C1/383
Filed: 1984-05-01
Granted: 1987-08-25
Abstract: ABSTRACT       A fold-up portable ladder has U-shaped sections that are connected by hinges.  The lower arm of each U-shaped section defines the ladder rungs.  Latches adapt-ed to fit into and mate with an aperture located in the vertical portions of the U-shaped section are position-ed at the lower ends of each U-shaped section.  These sections become progressively narrower as they approach the top section of the ladder.
Patent CA-1223057-A (CA)
Inventor: HOAG JACK E
IPC: H02G9/10
Filed: 1984-05-10
Granted: 1987-06-16
Abstract: VAULT MOUNT FOR ELECTRICAL APPARATUS                ABSTRACT OF THE DISCLOSURE          This invention provides a convenient apparatus and method for mounting equipment in an undergound vault to provide convenient access to  the  equipment whenever such access is necessary.   The vault mount  includes  a frame having one end thereof permanently pivotally mounted to the frame releasably attached to a second wall of the vault.   Suitable springs are mounted between the first wall of the vault and the frame to urge the frame to pivot about the mounting to the first wall.  When the second end of the frame is released from its wall mount,  the frame and the apparatus mounted thereon pivots from a generally horizontal position in the vault to a generally vertical position with the equipment mounted on the frame extending out of the vault.
Patent CA-1221683-A (CA)
Inventor: VERLANDER MICHAEL S
IPC: C07C31/135
Filed: 1984-06-04
Granted: 1987-05-12
Abstract: GEM-DIAMINOALKANE DERIVED SWEETENERS              ABSTRACT OF THE DISCLOSURE            Compounds of the formula:                            (I) wherein n is 0 or 1, R is lower alkyl (substituted or unsubstituted), R' is H or lower alkyl, and R" is a branched alkyl, alkyl-cycloalkyl, cycloalkyl, polycycloalkyl (poly = 2 or more, fused or non-fused), phenyl or alkyl-substituted phenyl, and physiologically acceptable cationic and acid addition salts thereof, which compounds are potent sweeteners.  These derivatives of gem-diaminoalkanes are many times sweeter than sugar and are free from undesirable flavor qualities.          Furthermore, they possess an unanticipated high degree of solubility compared with known synthetic sweeteners.  In addition, the compounds possess high stability so that they can be used is all types or beverages and in conventional food processing.  Sweetening composi-tions and sweetened edible compositions of these compounds are also provided.
Patent CA-1220563-A (CA)
Inventor: BLOSS WALTER L III
IPC: H01L23/48
Filed: 1984-07-17
Granted: 1987-04-14
Abstract: SEMICONDUCTOR SUPERLATTICE WITH CONTROLLED            PLASMON DISPERSION            ABSTRACT OF THE DISCLOSURE     A semiconductor superlattice structure is comprised of multiple, alternatively-doped semiconductive material layers forming p and n layers that collectively define quantum wells of space charge.  Contact means are used preferably in the form of a separate p contact and a separate  n contact  on  the  superlattice  structure. Application of suitable bias voltage between the p and n layers, controls the length of the depletion regions and functions to modulate the carrier concentrations.  This, in turn, modulates the plasmon energy.  Devices that may be constructed in accordance with the principles of the invention include optical switches, optical modulators, and variable delay lines.
Patent CA-1238276-A (CA)
Inventor: FLORANCE RICHARD K
IPC: A61K47/00
Filed: 1984-12-07
Granted: 1988-06-21
Abstract: ABSTRACT An elegant topical cream composition in the form of a water-in-oil emulsion, containing betamethasone dipropionate, for the treatment of inflammation.
Patent CA-1230247-A (CA)
Inventor: SLAVENS CLYDE M
IPC: B23K9/02
Filed: 1985-01-02
Granted: 1987-12-15
Abstract: Abstract Internal pipe welding apparatus, including a pair of internal pipe clamps between which is disposed a rota-tive welding head support.  The welding wire and gas feed conduits are disposed through passages through the central hub of one of the clamps.  The welding head support is ro-tated by a ring gear engaged by a gear carried by a shaft disposed through a passage of the central hub of the other clamp.  The gear engagement with the ring gear is adjust-able to minimize vibration and chatter.  The welding wire feeders are mounted on a block support at the front of the first mentioned central hub.
Patent CA-1230759-A (CA)
Inventor: WECHSLER JOSEPH W
IPC: B62M9/1246
Filed: 1985-01-04
Granted: 1987-12-29
Abstract: TITLE: DERAILER MECHANISM                       ABSTRACT         A particularly satisfactory derailer type bicycle can be constructed using front and rear derailer mechanisms in connection with the pedals and the rear wheel of the bicycle, respectively, and a control cable which operates these two mechanisms in synchronism with one another.  This control cable is used so as to rotate a cam of the front derailer mechanism in order to cause shifting of the bicycle chain between the gears in this mechanism.  Similarly the cable is used to concurrently rotate a cam of the rear mechanism so as to cause shifting of the bicycle chain between the gears of this mechanism.  The cam as the rear derailer mechanism formed to facilitate the shifting action achieved by causing the chain of the bicycle to be moved slightly past and then back into a position corresponding to a gear of the rear mechanism.
Patent CA-1216482-A (CA)
Inventor: AHN HONGSIK
IPC: F28B1/06
Filed: 1985-01-16
Granted: 1987-01-13
Abstract: IMPROVED WATER VAPOR-CONDENSING SECONDARY HEAT EXCHANGER           ABSTRACT    A compact secondary heat exchanger, installed in the path of room air through the casing of a gas furnace, utilizes a unitary condensing coil having parallel upper, middle and lower sets of tubes through which the flue gas passes sequentially to a collector manifold, exhausted by a blower.   The coil is slanted downwardly from the hot gas manifold.          Condensate formed in the first and second sets of tubes flows downward to an intermediate manifold between the first and second sets of tubing, condensate from this intermediate manifold is drained downward to a collector manifold beneath.
Patent CA-1223342-A (CA)
Inventor: RITTENBACH OTTO E
IPC: H01Q3/38
Filed: 1985-01-21
Granted: 1987-06-23
Abstract: ABSTRACT     Steerable phased array antennas of the tapered type in which the antenna element power is maximum at the center of the array and tapers off on either side thereof.  The phase shifters of each antenna element are of the binary digital type with the number of stages and hence the phase accuracy being maximum for the high power center antenna elements and tapering off on either side thereof.  Redundant stages for the binary phase shifters can be provided to increase reliability.
Patent CA-1223096-A (CA)
Inventor: THEIS PETER F
IPC: H04M11/10
Filed: 1985-01-30
Granted: 1987-06-16
Abstract: ABSTRACT           A message retrieval system is disclosed which includes a plurality of answering machines, each connected to a respective telephone line.  Each answering machine records telephone responses on a respective message memory unit and all message memory units are connected to a single message processor.  The message processor is in turn connected to a number of retrieval consoles used by operators to transcribe messages from the message memory units.  The message processor operates (1) to automatically switch the mode of a headset included in the retrieval console between a transcription mode and a dialog mode to allow an operator either to transcribe messages or to conduct live telephone conversations via the same headset; (2) to allow a console to place a commanded message memory unit on hold while live tele-phone conversations are being conducted; (3) to discon-nect a commanded message memory unit from a console in the event the console fails to command the message memory unit within a predetermined time; (4) to take positive action in the event recorded messages on one of the message memory units age excessively prior to transcription; and (5) to prevent a single operator closure of a switch or footpedal on the retrieval con-sole from causing more than a preselected amount of transcription or rewinding of the message memory unit.
Patent CA-1199151-A (CA)
Inventor: DRINKWATER THELMA M BOX GREENW
IPC: A41D13/12
Filed: 1985-02-20
Granted: 1986-01-14
Abstract: WARMING GARMENT                  FOR PERSONS IN WHEEL CHAIRS     ABSTRACT       This garment, called a T-Bag for the purpose of keeping elderly people or wheelchair patients warm, is made up of three layers of material:        - a lining of flannelette - an inner core on bonded polyester fibrefill - an outer covering of cotton or flannelette.    It is machine quilted in five inch squares and bound around the edge with the same material as the lining,  The tube which fits over the feet and legs is open in the back and closes behind the knees with a Velcro   fastening.  The waist of the garment, which has a quilted muff type pocket for the hands, is also fastened in the back with Velcrow allowing the garment to expand for larger sizes.
Patent CA-1240945-A (CA)
Inventor: SATO ATSUSHI
IPC: C10G50/00
Filed: 1985-05-15
Granted: 1988-08-23
Abstract: ABSTRACT    A straight-chain paraffin producing material obtained by treating a thermal-cracked oil distillate boiling in the range of 120° to 290°C and containing aliphatic olefins, at a temperature of 0° to 330°C in liquid phase in the presence of an acid catalyst, said thermal-cracked oil distillate being obtained from a thermal cracking process of thermally cracking a petrolic heavy residual oil at a temperature not lower than 400°C and not exceed-ing 700°C; and then separating and removing from the reaction mixture heavy components boiling higher than said distillate.
Patent CA-1243901-A (CA)
Inventor: INUMARU NAOKI
IPC: F27B15/09
Filed: 1985-05-28
Granted: 1988-11-01
Abstract: APPARATUS FOR SEPARATING FLUIDIZING MEDIUM        AND INCOMBUSTIBLE RESIDUE     Abstract:      An apparatus for separating fluidizing medium and incombustible residue from the mixture thereof derived from a reactor of fluidizing bed type adapted to incinerate municipal refuse without pre-shredding or crushing the same.          The apparatus primarily comprises a screw conveyor adapted to receive the mixture from the reactor and at the terminal end portion of the screw conveyor in the advancing direction, a cylindrical sieve is connected to the screw so that rela-tively large constituents of the incombustible residue are discharged at an end opening of the cylindrical sieve while the fluidizing medium and small constituents of incombustible residue may pass through perforations of the cylindrical wall of the sieve.
Patent CA-1256399-A (CA)
Title: Closure
Inventor: WRIGHT PHILIP M
IPC: B65D17/50
Filed: 1985-06-25
Granted: 1989-06-27
Abstract: CLOSURE               Abstract of the Disclosure A metallic closure for a cylindrical, rectangular or square container comprising a central panel.  A part of the panel is adapted for attaching the closure to the end of a container to close the end.  The panel has an opening therein and the portion of the metal adjacent the opening is rolled so that the end thereof engages under the inner surface of the panel in a smooth roll such that the free edge is not directly exposed to the contents in the container on which the closure is placed.  A composite panel is bonded to the central panel on the outer surface of the central panel.  The closure is 100% safe.  When the composite panel is removed a residue remains on the outer surface of the metal panel providing evidence of tampering.   i.
Patent CA-1260248-A (CA)
Inventor: SODENO TOSHIAKI
IPC: A44B19/42
Filed: 1985-07-23
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE     A slide fastener chain with reinforcing strips is fed along a feed path through a finishing apparatus for trimming the reinforcing strips.  The finishing apparatus has a chain guide unit, a cutter unit, and a chain tensioner unit.  The chain guide unit includes a stop having recesses for accommodating some coupling elements and steps for engaging endmost coupling elements.  The chain tensioner unit has a presser gripper for pressing the slide fastener chain against a support base and a presser roller for depressing the slide fastener chain to tension the same for thereby forcibly pushing the endmost coupling elements against the steps.  When the slide fastener chain is tensioned by the chain tensioner unit, one of the reinforcing strips is accurately positioned with respect to the cutter unit.  The reinforcing strip is now trimmed by central and side cutters which cut off central and side excessive portions completely.
Patent CA-1256090-A (CA)
Inventor: VAN ERP WILLIBRORD A
IPC: C07C1/04
Filed: 1985-09-12
Granted: 1989-06-20
Abstract: A B S T R A C T     Process for the preparation of catalysts comprising cobalt supported on a carrier. Cobalt is distributed over the carrier in such a manner as to satisfy the relation   0.55 by immersing a porous carrier once or several times in a solution of a cobalt compound, removing the liquid from the composition after each immer-sion and finally calcining and activating the composition.          During each immersion the following relation between the viscosity measured at 60°C (v in cS) and the temperature (T in °K) of the solution, and the immersion time (t in s) is satisfied:            104 ? 1. .SIGMA.Vc represents the total volume of the catalyst particles under consideration and that  .SIGMA.Vp is found by adding up the peel volumes present in the catalyst particles, the latter being regarded as being composed of a kernel surrounded by a peel, which kernel is of such a shape that at every point of the kernel perimeter the shortest distance (d) to the perimeter of the peel is the same, d being equal for all catalyst particles under consideration, and having been chosen such that the quantity of cobalt present in .SIGMA.Vp is 90% of the quantity of cobalt present in .SIGMA.Vc.
Patent CA-1234929-A (CA)
Inventor: BRAUNLICH PETER F
IPC: G01T1/115
Filed: 1985-09-18
Granted: 1988-04-05
Abstract: Abstract of the Disclosure An apparatus and method for rapidly reading thermoluminescent phosphors to determine the amount of luminescent energy stored therein.          The stored luminescent energy is interpreted as a measure of the total exposure of the thermoluminescent phosphor to ionizing radiation. The thermoluminescent phosphor reading apparatus uses a laser to generate a laser beam. The laser beam power level is monitored by a laser power detector and controlled to maintain the power level nearly constant. A shutter or other laser beam interrupting means is used to control exposure of the thermoluminescent phosphor to the laser beam. The laser beam can be equalized using an optical equalizer so that the laser beam has an approximately uniform power density across the beam. The heated thermoluminescent phosphor emits a visible or otherwise detectable luminescent emission which is measured as an indication of the radiation exposure of the thermoluminescent phosphors. Also disclosed are preferred signal processing and control circuits.
Patent CA-1273367-A (CA)
Inventor: HANIN JEAN A A
IPC: C07C29/16
Filed: 1985-11-29
Granted: 1990-08-28
Abstract: ABSTRACT          HYDROFORMYLATION OF OLEFINS          The higher alcohol yield of a hydroformylation process comprising catalytic hydroformylation of olefinic feedstock and hydrogenation of the crude product is improved by separating light materials and desired alcohols from the hydrogenated product, and then subjecting the remaining heavy materials to catalytic steam cracking at 260-380°C.  The fraction of the cracked product which is rich in alcohol/aldehyde is then separated and recycled, preferably to the hydrogenation stage.
Patent CA-1220155-A (CA)
Inventor: BENNINGA DWIGHT A
IPC: B65G19/22
Filed: 1985-12-12
Granted: 1987-04-07
Abstract: ABSTRACT OF THE DISCLOSURE A pair of adjacent and relatively angulated tubular section ends open into a transversely enlarged hollow housing having a sprocket wheel journaled therein for rotation about an axis disposed transverse to the plane containing the tubular section ends.  The endless flexible member of a conveyor extends through the tubular sections and about the wheel and has longitudinally spaced paddles mounted thereon having openings formed therein through which the elongated tension member is loosely received.  The paddles additionally include slots communicating the openings with the outer periph-eries of the paddles and the tubular section end opening into the hollow housing includes a lengthwise extending and upstream tapering guide mounted therein and engageable by the surfaces of the paddles defining the opposite sides of the slots formed therein for guidingly engaging the paddles, and thus the adjacent tension member portions upon their final approach toward the wheel.  The wheel may be driven from an adjacent location or a remote location and the paddles are of a plan shape corresponding to the inside cross-sectional shape of the tubular sections with the paddles being slightly smaller in dimension than the interiors of the tubular sections.
Patent CA-1274251-A (CA)
Inventor: DRENT EIT
IPC: C07C57/045
Filed: 1986-02-20
Granted: 1990-09-18
Abstract: ABSTRACT     PROCESS FOR THE HYDROCARBOXYLATION OF ACETYLENICALLY UNSATURATED COMPOUNDS    The hydrocarboxylation of alkynes with CO and a carboxylic acid in the presence of a catalyst prepared by combining a compound of divalent palladium and a tri-organic phosphine is carried out by using a ratio mol phosphine per gramaton of palladium of more than 15 and, preferably, in the presence of benzenephosphonic acid.
Patent CA-1248159-A (CA)
Inventor: RIESENBERG MANFRED
IPC: B25B11/00
Filed: 1986-03-13
Granted: 1989-01-03
Abstract: ABSTRACT OF THE DISCLOSURE          A vacuum lifting arrangement for flat workpieces, such as lumber boards, lumber planks and the like includes a vertically and horizontally displaceable housing which forms a vacuum chamber, and an elastic sealing element arranged at the underside of the housing for conformingly contacting the workpiece and constituted either by a foamed material mat with suction apertures or by individual suction cups. The vacuum chamber is constructed as a vacuum accumulator and a valve plate is interposed between the housing and the sealing element. The interior of the valve plate is subdivided into a plurality of individual vacuum compartments each equipped with a valve and is connected with the vacuum chamber by a suction opening which can be selectively opened and closed.          Each of the vacuum accumulator and the valve plate is pro-vided with its own admission opening which communicates with the ambient atmosphere, such openings being openable and clos-able in unison. A high vacuum is built up in the vacuum ac-cumulator and is supplied in the case of need through the individual vacuum compartments to the suction apertures or suction cups. The valves are automatically opened or closed in dependence on the configuration of the workpiece so that the suction portions of the sealing element which are fully covered by the workpiece are subjected to the full vacuum and the remaining suction portions are cut off from the vacuum by the action of the respective valves, thus avoiding vacuum loss and operation disruptions.
Patent CA-1229278-A (CA)
Inventor: TOKARZ JOSEPH S
IPC: A61F5/44
Filed: 1986-03-26
Granted: 1987-11-17
Abstract: Abstract of the Disclosure A sizing instrument for a female urinary incontinence device including a periurethral cup, an external pad, and an elastic tubular bellows extending therebetween, as well as associated elements for holding the device in place and for collecting urine flowing therethrough.  The periurethral cup is molded in one piece from soft compressible material and has walls of substantial thickness providing smoothly rounded surface for sealingly contacting surface of the periurethral floor and vaginal introitus.  One wall portion of the cup curves upwardly to define a resilient urine-deflecting protuberance received within the vaginal introitus.  The device also includes a conduit for directing urine to a collector, a valved port for allowing air to enter the system within the external pad to prevent the development of relative negative pressure within that system, and a vent for allowing gas to escape from the collector.
Patent CA-1270016-A (CA)
Inventor: CASSEL THOMAS R
IPC: F16L21/08
Filed: 1986-04-01
Granted: 1990-06-05
Abstract: PIPE LAP JOINT WITH COLLAPSIBLE  SEALING ZONE AND BAND CLAMP                         ABSTRACT       A pipe lap joint is disclosed with an improved sealing zone structure in the overlap region of the pipe.  The sealing zone comprises a pair of end-to-end  intersecting  slots  which  are  covered  by  a clamping band and which allow the sealing zone of the pipe to be collapsed against the inner pipe when the clamping  band  is  tightened.    The  outboard slot extends  inwardly  from  the  end  of  the  pipe  and terminates  in  a  transverse  end  wall  within  the overlap    region.        The    inboard    slot    is circumferentially offset from the outboard slot and extends inwardly from an outer end wall thereof.  The adjacent sidewalls of the slots are in substantial alignment with each other and the end walls are also in substantial alignment with each other whereby the end walls of the slots are disposed in edge-to-edge engagement with each other when the overlap region of the  outer  pipe  is  collapsed  into  close  fitting engagement with the inner pipe.