baber/WOPTO huggingface dataset:
Patent CA-1141669-A (CA)
Inventor: BRAMOW SCOTT B
IPC: F15C1/22
Filed: 1980-12-15
Granted: 1983-02-22
Abstract: FLUID SIGNAL SQUARE ROOT EXTRACTOR              Abstract Of The Invention A square root signal extractor generates an output signal which is a square root function of an input signal.  First and second diaphragm amplifiers have cascaded output chambers connected to a high gain output amplifier.  The first and second amplifiers are connected as the non-inverting input and the inverting input respec-tively of the operational amplifier.  A high gain output diaphragm amplifier is connected to the inverting amplifier output.  The output diaphragm amplifier is constructed such that only a low level input pressure change is required to create a full swing of the output pressure.  A non-linear input restrictor and a linear feedback resistor are connected to the input chamber of the inverting amplifiers.  The feedback resistor has a significantly greater resistance than the input resistor.  The non-inverting diaphragm amplifier is connected to the transmitter by a fluid repeater.  A reference signal source is connected to the input restrictor and thus to the inverting input.  The input restrictor is selected such that the differential pressure across the restricter is the square root of the flow.  An adjustable fluid resistor is connected between the non-inverting and the inverting inputs which creates a flow path between the transmitter and reference source. The fluid repeater prevents loading of the transmitter.
Patent CA-1158400-A (CA)
Inventor: SULLIVAN CARL M
IPC: C08J9/02
Filed: 1980-12-22
Granted: 1983-12-06
Abstract: Abstract Low Density High Resiliency Foams A process for producing flexible polyurethane foams having improved load bearing properties which process includes the step of reaction of a polyisocyanate with a polymeric polyol in the presence of a catalyst, a blowing agent and a chain extender consisting of 1,2-diamino-cyclohexane.
Patent CA-1158810-A (CA)
Inventor: STEPP JAMES D
IPC: C09B47/10
Filed: 1981-01-05
Granted: 1983-12-20
Abstract: SOLVENT STABLE COPPER PHTHALOCYANINE BLUE PIGMENTS   Abstract of the Disclosure A process for producing stable copper phthalocyanine blue pigment in the alpha form.  Copper phthalocyanine blue crystals are ground to produce a powder.  The powder is contacted with chlorine and mixed with sulfuric acid.  The pigment-sulfuric acid mixture is then mixed with water
Patent CA-1150549-A (CA)
Inventor: DOVE NORMAN F
IPC: D21F7/00
Filed: 1981-02-19
Granted: 1983-07-26
Abstract: ABSTRACT OF THE DISCLOSURE         A steam distributor for applying steam to a paper sheet moving beneath it and spaced from the distributor.          The distributor has a leading edge and a trailing edge relative to the sheet movement.  There is a header for steam extending along the leading edge.  At least one opening formed in the header enables steam to be directed towards the sheet.  The steam so directed forms a curtain to elimi-nate air entrained by the sheet.
Patent CA-1161549-A (CA)
Inventor: MENEZES WILLIAM A
IPC: G11B5/86
Filed: 1981-03-19
Granted: 1984-01-31
Abstract: VIDEO EDITING APPARATUS     ABSTRACT OF THE DISCLOSURE           Video editing apparatus for use with video playback and recording devices  such as video tape recorders (VTR's) wherein signals are reproduced from a first record medium and recorded on a second record medium.  The apparatus is provided with a console having a plurality of display registers for display-ing record medium position data representing respective positions of the first and second media.  Register selector switches are associated with respective ones of the display registers each such switch being operable to select its associated display register.  The console also is provided with a plurality of signal selector switches  each being operable to select a particular type of signal (such as a video or audio signal) reproduced from the first medium to be recorded on the second medium when a pre-selected one of the media reaches a position represented by the position data displayed in a selected display register.  Indicators  such as visual indicator devices  are associated with respective ones of the signal selector switches and are operative to apprise an operator of the relative positions at which the particular types of signals are to be recorded on the second medium.  The apparatus also is provided with a central processing unit responsive to the operation of a selected signal selector switch and a selected register selector switch for associating the position data dis-played in the display register associated with that register selector switch with the selected signal selector switch  whereby when the pre-selected medium reaches the position represented by the associated position data, the particular type of signal selected by the signal selector switch is recorded on the second medium.
Patent CA-1158979-A (CA)
Title: Solid pharmaceutical formulations for slow zero order   release via controlled surface erosion
Inventor: POWELL DAVID R
IPC: A61K9/20
Filed: 1981-04-27
Granted: 1983-12-20
Abstract: ABSTRACT OF THE DISCLOSURE         A new class of solid pharmaceutical formulations enables the attainment of slow, zero order in vivo release of a wide range of phar-maceutically active ingredients upon oral administration, without the pharmaceutical composition having layers, beads or enteric materials, and without relatively insoluble polymers, waxes or gums.  A broad range of release rates can be preselected by suitable adjustments of tablet properties.  The formulations are based upon control of active ingredient release from the surface of the tablet via a controlled surface erosion mechanism.  These compositions comprise:  (a)  an effective amount in the range of 10-90 wt % of a pharmacologically active compound having a water solubility (20°C) of ? -  ?   (w/w); (b)  1-40 wt % of a surface controlling compound which is pharmaceutically acceptable in oral com-positions and has a water solubility (20°C) of 1/1 - 1/40 (w/w); (c) 2-20 wt % of an erosion controlling compound which is pharmaceutically acceptable in oral compositions and has a water solubility (20°C) of 1/1 -1/10 (w/w); (d)  an amount in the range of 0.05 - 1.0 wt % of a dis-integrating agent for pharmaceutical compositions, at which amount the compound is ineffective as a disintegrating agent; (e)  0.1-2.0 wt % of a surfactant which is pharmaceutically acceptable in oral compositions; and, as necessary for tablet manufacturing purposes, (f)  1-20 wt % of a binder which is pharmaceutically acceptable in oral compositions; or (g)  0.5-5.0 wt % of a die wall lubricant which is pharmaceutically acceptable in oral compositions.
Patent CA-1181230-A (CA)
Title: Tie hook, particularly rubber spring hook
Inventor: BICHARD BERNARD
IPC: F16B45/02
Filed: 1981-05-29
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE        A hook according to the present invention for hitching a tie comprises an anchorage block to receive and secure a tie and a part forming an open hooking loop.  The open hooking loop has a first arm secured to the anchorage block and a second arm connected to the first arm by a hinge portion spaced from the anchorage block which allows positioning of the arms to form a closed loop in one position and movable to a second position where the end of the second arm is remote from said anchorage block to permit hitching of the hook.  The second arm has a gripping member remote From the hinge to permit closing of the hooking loop adjacent the block.  This structure simplifies hooking of a tie as the arms are movable to provide a wide opening to allow hitching of the hook to a bar of a roof rack or other structure.  This is in contrast to the prior art arrangements which have a narrow opening to permit hitching.
Patent CA-1176907-A (CA)
Inventor: SLOSIAREK MICHAEL L
IPC: B60H3/06
Filed: 1981-08-21
Granted: 1984-10-30
Abstract: DOWNWARDLY SWINGING REPLACEABLE AIR      FILTER FOR A VEHICLE CAB                 ABSTRACT OF THE DISCLOSURE A downwardly swinging air filter from the roof overhang of a vehicle cab to allow replacement of the air filter. The filter is carried in the tray pivotally supported and latched in an operating position which seals the filter on the inlet and outlet surfaces.
Patent CA-1174668-A (CA)
Title: Bis-tetrazoylmethyl substituted cephalosporin  antibiotics
Inventor: KATNER ALLEN S
IPC: A61K31/545
Filed: 1981-09-08
Granted: 1984-09-18
Abstract: Abstract 7.beta.-Acylamino-3-cephem-4-carboxylic acids substituted in the 3-position with a bis-tetrazole-methylthiomethyl group and the corresponding 7.alpha.-methoxy cephalosporins represented by the formula   wherein R is an acyl group, R2 is H or OCH3 and R4 is H or C1-C3 alkyl; are broad spectrum antibiotics useful in the treatment and control of microorganisms patho-genic to man and animals.  7.beta.-Amino nucleus compounds represented when R is hydrogen are intermediates useful in the preparation of the antibiotics where R is acyl.
Patent CA-1182213-A (CA)
Inventor: KRISHNAMURTY RAJAN
IPC: G11B5/024
Filed: 1981-09-09
Granted: 1985-02-05
Abstract: SAFEGUARDING OF DATA RECORDED ON DISK BY TUNNEL             ERASE MAGNETIC HEAD ASSEMBLY                 Abstract of the Disclosure Apparatus is provided for the safeguarding of data recorded on disk and diskettes by tunnel erase magnetic head assembly which comprise a read/write transducer for magnetically recording data along tracks on said disk and a pair of magnetic erase transducers adjacent to the read/write transducer for limiting the width of the recorded data.  The apparatus for safeguarding the recorded data comprises apparatus for sensing the activation of the erase and/or read/write transducer and apparatus responsive to such sensed activation for determining if the activation is erroneous.
Patent CA-1183207-A (CA)
Inventor: THORAVAL YVON
IPC: H01Q1/38
Filed: 1981-10-16
Granted: 1985-02-26
Abstract: ABSTRACT OF THE INVENTION     Apparatus for communicating electromagnetic energy between a logging tool and a surrounding medium comprise a support member, a radiating/receiving element disposed on one surface of a nonconductive dielectric material having a shape compatible with the shape and dimensions of the support member, a ground plane disposed on the other face of the dielectric opposite the radiating/receiving element and a predetermined distance therefrom, and impedance means, a short circuit in one embodiment, electrically connecting an end of the first element to the second element.  The dielectric, radiating/receiving element, and ground plane are carried by the support member, which may be a mandrel or a pad.  Various embodiments particularly suitable for use in certain applications and with certain kinds of logging tools are described.  Furthermore, related methods for communicating electromagnetic energy between a logging tool and a surrounding medium and related logging tools for investigating the electrical permittivity and/or electrical conductivity of a formation traversed by a borehole are described.
Patent CA-1215390-A (CA)
Inventor: GOETZ NORBERT
IPC: C07C213/02
Filed: 1981-12-02
Granted: 1986-12-16
Abstract: O.Z. 0050/034800 Abstract of the Disclosure: Aromatic amines (anilines) are obtained directly or via the corresponding cycloaliphatic amines by an aminating/hydrogenating reaction of phenols with ammonia and hydrogen over a supported palladium cata-lyst which also contains elements from group 1 b, 2 b or 7 b of the periodic table as well as iron, cobalt or nickel, as such or in the form of their compounds, and, preferably, an inorganic base, said catalysts also having dehydrogenating properties.
Patent CA-1204688-A (CA)
Inventor: ROEDER ANTON
IPC: C12N5/00
Filed: 1981-12-18
Granted: 1986-05-20
Abstract: Abstract of the disclosure:      Cultivation and reproduction of insect cells in a nutrient medium in which fetal calf serum is partially or completely replaced by egg yolk.
Patent CA-1182111-A (CA)
Inventor: BAJUSZ SANDOR
IPC: A61K38/00
Filed: 1982-01-12
Granted: 1985-02-05
Abstract: A B S T R A C T   O F   T H E   D I S C L O S U R E    The invention relates to D-phenylalanyl-L--prolyl-L-arginine aldehyde sulfate, highly stable in aqueous solution, and to a process for preparing it from D-phenylalanyl-L-prolyl-L-arginine aldehyde hemisulfate or         NG-carboxy derivative con-taining an acid-sensitive protecting group at its amino terminal,wherein          the acid sensitive amino terminal protecting group or optionally the NG-carboxy group is removed with 1 to 12 N sulfuric acid, applied in 1 to 12 equivalent amounts end the resulting free tripeptide aldehyde sulfate is isolated, The D-phenylalanyl-L-prolyl-L-arginine aldehyde sulfate of the invention possesses valuable anti-coagulant activity.
Patent CA-1178686-A (CA)
Inventor: KELLOGG RICHARD A
IPC: H04L25/49
Filed: 1982-01-21
Granted: 1984-11-27
Abstract: LINE PROTOCOL FOR COMMUNICATION SYSTEM               ABSTRACT OF THE DISCLOSURE      In a communication system, a line protocol format with a variable bit rate and low bit overhead provides for the high integrity, synchronous exchange of digital signal inform-ation between master and slave processing units, with master processing unit controlling the line protocol.
Patent CA-1201470-A (CA)
Inventor: NOERHOLM OLAF
IPC: H01H85/10
Filed: 1982-02-02
Granted: 1986-03-04
Abstract: A B S T R A C T                      "ELECTRICAL FUSE"     An enclosed fuse comprising a porous filler and a pair of terminals mutually insulated except for at least one metallic fuse conductor comprising two kinds of metal so arranged that the current from one terminal to the other will pass successively and alternately through the two kinds of metal, beginning and ending in the first kind of metal, the second metal having reductions in cross-section defining one or more fuse elements, the second metal being selected to withstand a temperature at a fuse element near the melting point thereof without significant deterioration and the first metal being selected to provide conditions for current interruption with the arc burning between foot-points on parts of the first metal.
Patent CA-1178028-A (CA)
Inventor: WARD JOHN W
IPC: C01B17/04
Filed: 1982-02-08
Granted: 1984-11-20
Abstract: ABSTRACT             Catalysts comprising bismuth and vanadium compone-ents are highly active and stable, especially in the presence of water vapor, for oxidizing hydrogen sulfide to sulfur or SO2. Such catalysts have been found to be especially active for the conversion of hydrogen sulfide to sulfur by reaction with oxygen or SO2.
Patent CA-1171042-A (CA)
Inventor: PEOPLES CHARLES B
IPC: B60R9/04
Filed: 1982-03-01
Granted: 1984-07-17
Abstract: CAR TOP CARRIER          Abstract of the Disclosure A universal car top carrier is supported upon a pair of spaced apart full length resilient mounting pads.          The mounting pads are internally supported by a spring bar to accommodate flexing and produce an even distribution of pressure along the length of the mounting pad.  The mounting pads are triangular in cross-section to define three elongated faces each face being differently contoured and selectable to obtain a mating conformance with the supporting roof line or corner.  Different width roofs are accommodated by a pair of width adjustable telescoping tubing/support attached to the mounting pads through castings.  A cam lock buckle at each casting releasably secures the strap of a gutter hook to lock the car top carrier to the car roof.
Patent CA-1192423-A (CA)
Inventor: KAMMER PAUL A
IPC: C23C4/08
Filed: 1982-04-05
Granted: 1985-08-27
Abstract: ABSTRACT OF THE DISCLOSURE           A free-flowing self-bondable flame spray powder derived from an atomized alloy powder is provided in which the particles are characterized by aspherical shapes and have an average particle size within the range of about plus 400 mesh to minus 100 mesh.  The aspherically shaped powder is further characterized by a specific surface of about 180 cm2/gr and higher and has a composition consisting essentially of a solvent metal of melting point in excess of about 1100°C whose negative free energy of oxidation ranges up to about 80,000 calories per gram atom of oxygen referred to 25°C.  The solvent metal contains at least one highly oxidizable solute metal in an amount of at least about 3% by weight, the oxidizable metal having a negative free energy of oxidation of at least about 100,000 calories per gram atom of oxygen referred to 25°C.
Patent CA-1182744-A (CA)
Inventor: BARKER JAMES M
IPC: E21B33/129
Filed: 1982-04-27
Granted: 1985-02-19
Abstract: ABSTRACT       A plug for coupling to the mandrel of a  well  packer, to convert the packer to a bridge plug, includes an equaliz-ing valve.  A fixed component of the plug is an elongated tubular member coupled to the upper end of the packer mandrel and closed at its upper end, and having longitudinally elongated ports in its side walls.  The movable component of the plug includes an outer housing for receiving the upper portion of the fixed component and an inner sleeve coupled to the outer housing by means of pins extending through the elon-gated ports.  Seals between the fixed components and the inner sleeve seal the elongated ports in the closed condition of the valve.  In the open condition of the valve, ports in the inner sleeve and the outer housing communicate with the elongated ports of the fixed component.  The movable component includes a fishing neck attached to the upper end of the outer housing.          With this design, the movable component is not affected by differential pressures acting across the bridge plug, and the internal and external elements of the movable component are fully balanced relative to the pressures acting thereon so that there are no resulting forces urging either the opening or the closing of the valve.
Patent CA-1172361-A (CA)
Inventor: PALMQUIST STEVEN ROBERT
IPC: G01R13/28
Filed: 1982-04-30
Granted: 1984-08-07
Abstract: Abstract A  logic  analzyer  for  measuring  individually  a plurality of logic signals transrnitted via a multiplex-ed digital bus in a time-sharing manner is disclosed. first  and  second memory circuits  store  respectively first  and  second  logic  signals  of  the  multiplexed digital bus in accordance with first and second strobe signals synchronized with the first and second logic signals.
Patent CA-1248547-A (CA)
Inventor: BYRNE BRIAN
IPC: A23L27/20
Filed: 1982-06-09
Granted: 1989-01-10
Abstract: DIKETONE GENERATORS                 Abstract of the Disclosure A novel class of alpha-keto geminal diacyloxy compounds is disclosed.  These compounds are useful as vicinal diketone generators in foodstuffs.  Use for this purpose is also dis-closed.
Patent CA-1147953-A (CA)
Inventor: ROSS JOSEPH FELL STREET NELSON
IPC: E02F3/76
Filed: 1982-06-21
Granted: 1983-06-14
Abstract: ABSTRACT OF THE DISCLOSURE           There is provided an improved wing plough apparatus for attachment to a road maintenance vehicle comprising at least one support member adapted to be secured to said vehicle and including forward and rearward longitudinally spaced points for pivotal connection of a wing blade and a wing blade pivotally connected at said two points to said at least one member for rotation about an axis parallel to the longitudinal axis of said vehicle, said first pivotal connection at said forward point comprising a first bracket secured to the inner end of said blade and pivotally connected at said forward point; and said second pivotal connection comprising a bell crank pivotally connected at its centre pivot to said rearward point and rigidly connected relative to its direction of rotation to the outer end of said blade by means of a hinged linkage, the outer pivots of said bell crank connected to a pair of oppositely acting hydraulic cylinders which are in turn rotatably secured to said at least one support member, whereby the action of said hydraulic cylinders causes the rotation of said bell crank and hence of said blade about said parallel axis.
Patent CA-1199537-A (CA)
Inventor: KINJO NORIYUKI
IPC: G01N27/12
Filed: 1982-09-28
Granted: 1986-01-21
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to a humidity sensor of electric resistance type whose electric resistance changes in accordance with an ambient humidity, charac-terized by a protective film of silicone resin provided on the surface of a humidity-sensitive material, and to a method for preparing the same.  The protective film of silicone resin is formed by applying a varnish of siloxanes to the humidity-sensitive material and subjecting the varnish to reaction.  The varnish can be of one-pot type or two-pot type, and desirably the reaction of siloxanes is a cross-linking reaction.  The formed protective film is not influenced by swelling or shrinking of the humidity-sensitive material, and is prevented from flowing off due to a temperature rise, or from deposition of dusts, etc.
Patent CA-1190526-A (CA)
Inventor: SCHAUB MICHAEL
IPC: A45C7/00
Filed: 1982-11-10
Granted: 1985-07-16
Abstract: ABSTRACT OF THE DISCLOSURE         A case comprises  at least one rigid, obstruction-free frame base member with a channel-shaped profile and lat-erally fitted, interchangeable lateral members.  The latter can be in the form of plates, case sheels or a lateral cover provided with a roller shutter.  The case can be opened between the frame base member and one of the lateral members.  The volume within the profile permits the reception of various add-itional members, such as locking members, handles, name plates, marking elements, accessories, roller elements and straps.          The frame base member can be in the form of a rectangle, square, polygon or circle.
Patent CA-1204208-A (CA)
Title: Flexible magnetic disc cassette
Inventor: ASAMI SHOJIRO
IPC: G11B23/03
Filed: 1982-11-30
Granted: 1986-05-06
Abstract: ABSTRACT OF THE DISCLOSURE         A flexible magnetic disc cassette carries a normally closed automatic slide shutter which selectively covers head access holes provided on the cover of the disc cassette.          Basically, such disc cassette is designed for use with a disc drive mechanically which carries an automatic shutter opening system.  In order to be able to use such cassette with a disc drive having no such automatic shutter opening system, the shutter is arranged designed to move on said cover to an extended position where the shutter is latched in an extended open position.
Patent CA-1212484-A (CA)
Inventor: BUTT SHELDON H
IPC: H05K1/05
Filed: 1983-01-20
Granted: 1986-10-07
Abstract: ABSTRACT A chip carrier 90 and a process of assembling a chip carrier are disclosed,  The carrier used for mounting a chip comprises a copper or copper base alloy component 92 having a thin refractory oxide layer 93 on 2 surface thereof.  The surface and the oxide layer have an indentation formed therein for receiving the chip 102.  A metallic circuit pattern 98 for electrical connection to the chip is bonded to the oxide layer and insulated from the copper or copper base alloy by the refractory oxide layer.  A seal 104 is provided for enclosing the chip to the indentation. Another embodiment of the invention includes a circuit board structure comprising a circuit board device 24 having a first coefficient of thermal expansion.  A chip carrier 90 is provided having a second coefficient thermal expansion of substantially the same value as the first coefficient of thermal expansion.  The chip carrier has electrical leads 100 soldered to the circuit board whereby thermal cycling of the circuit board structure does not substantially stress the bond between the solder, leads and circuit board.  Other embodiments of the present invention include both leadless and leaded hermetic semi-conductor packages and innovative relationships between the packages and printed circuit boards.