baber/WOPTO huggingface dataset:
Patent CA-1275684-C (CA)
Title: Dynamically converging electron gun system
Inventor: BLACKER ALLEN P JR
IPC: H01J29/48
Filed: 1987-02-19
Granted: 1990-10-30
Abstract: ABSTRACT        An electron gun system according to the invention comprises a cathode and electron gun for developing an electron beam.  A main focus lens, which has a plurality of electrodes situated on a common axis, provides for receiving the electron beam and forming a focused electron beam spot at the screen of the tube.  A power supply circuit is provided for developing and applying to the electrodes potentials effective to form one or more focusing field components between the electrodes, the main focus lens means and power supply potentials being such that the field components are discrete and independent for each of the three beams.  The lens is so structured and arranged as to cause to be formed between adjacent electrodes at least one focusing field component which is asymmetrical and effective to significantly divert a passed beam from a straight-line path through a predetermined angle.  A first of the plurality of electrodes comprises a focus electrode adapted to receive focus voltages for establishing the focal distance of the beams.  A second of the plurality of electrodes cooperates with another of the plurality of electrodes to form the asymmetrical field component.  Electrical control circuits according to the invention provide for developing and applying a varying voltage to the second electrode to cause the strength of the asymmetric field component, and thus the angle by which the beam is diverted, to vary in response to the varying voltage.
Patent CA-1281401-C (CA)
Inventor: WEISS HARDY P
IPC: H01S3/03
Filed: 1987-03-24
Granted: 1991-03-12
Abstract: ABSTRACT OF THE DISCLOSURE         To stabilize the operation of an axial gas laser, pressure pulses of a gas pumping device (9) are compressed by and with reference to the excitation section (lb, lc), the gas pumping device and the excitation tube are designed as physically connected components (E), so that no frequency portion of the gas pumping device pumping stream occupies the resonance portions of the overall system.
Patent CA-1303361-C (CA)
Title: Method and apparatus for melting metals
Inventor: WILLANS ROBERT D H
IPC: C22B19/32
Filed: 1987-03-27
Granted: 1992-06-16
Abstract: METHOD AND APPARATUS FOR MELTING METALS                ABSTRACT         In the melting of metals in a furnace with the formation of dross on top of molten metal, the bridging and clogging of equipment with dross is overcome by using an impellor surrounded by a partly immersed, generally cylindrical, slotted shroud. The impellor is rotated and metal feedstock is added in the form of particulates to the resulting vortex.  The particulates move downward into the vortex and melt readily.  Dross separates from the melt and collects in a crusty layer on the melt surface outside the shroud. At least one vertically-positioned elongated opening in the wall of the shroud is adapted to allow melt to circulate through the opening while preventing dross collected outside the shroud from passing through.  The shroud may have a downward taper with an angle of from greater than about 0° to about 30°.  The elongated openings may have a variety of shapes, but are preferably rectangular.  The shroud and impellor are suspended from above the furnace and are preferably made of a ceramic material.
Patent CA-1305157-C (CA)
Inventor: APPLETON RICHARD A
IPC: C07D231/38
Filed: 1987-05-06
Granted: 1992-07-14
Abstract: Abstract There are described compounds of formula I,                     I     in which R1 represents hydrogen, alkyl, alkanoyl or alkyl substituted by Ar1, R3, R4 and R5, which may be the same or different, each independently represent hydrogen, alkyl or Ar3, Ar1, Ar2 and Ar3, which may be the same or different, independently represent phenyl or phenyl substituted by one or more of alkyl, hydroxy, alkoxy, NR6R7 or halogen, R6 and R7, which may be the same or different, independently represent hydrogen or alkyl, and pharmaceutically acceptable acid addition salts thereof.    Compositions containing the compounds and methods for their preparation are also described.    The compounds are indicated for use as pharmaceutical, eg anti-inflammatory, agents. 4804K(ir)/ac
Patent CA-1291285-C (CA)
Title: Preparation of durable epoxy (meth)acrylic polymer with oxirane-containing terminal groups
Inventor: SPINELLI HARRY J
IPC: C08L/
Filed: 1987-05-21
Granted: 1991-10-22
Abstract: TITLE Preparation of durable Epoxy (Meth)Acrylic Polymer with Oxirane -Containing Terminal Groups ABSTRACT OF THE DISCLOSURE    A process for the preparation of an acrylic, curable epoxy resin having an ABA block copolymer structure, wherein each A block end segment contains a terminal oxirane group and the B block centre segment is of acrylate or methacrylate units, using group transfer polymerization, is disclosed.  Epoxy resins may be used in coatings, adhesives, castings, laminates and the like
Patent CA-1311365-C (CA)
Title: Pressure transducer with stress isolation for hard mounting
Inventor: KNECHT THOMAS A
IPC: G01L7/08
Filed: 1987-06-04
Granted: 1992-12-15
Abstract: ABSTRACT OF THE DISCLOSURE A pressure transducer has a stress isolator layer which permits the sensor to be non-resiliently mounted (hard mounted) to a mounting surface that in turn  is  subjected  to  strain.   The  strain  of  the mounting surface tends to induce undesired stress in the  sensing  diaphragm,   and  the  present  stress isolator layer minimizes the amount of stress that is transferred  to  the measuring diaphragm,  to  thereby reduce  error.   The  spring  preferably  comprises  a silicon leaf-type spring, with or without isolating slots,  and  is  used  in  various  combinations  of diaphragms  that  are  sensitive  to  pressure.   The deflection of the diaphragm in response to pressure can be measured in any desired known manner such as with  strain  gage  resistors,  or  through  capacitive sensing.
Patent CA-1275394-C (CA)
Title: Night light assembly
Inventor: SPECTOR DONALD
IPC: F21V21/02
Filed: 1987-09-02
Granted: 1990-10-23
Abstract: IMPROVED NIGHT LIGHT ASSEMBLY              Inventor:  Donald Spector, a citizen of the United States of America and resident of Union City, NJ                      ABSTRACT OF DISCLOSURE     A night light assembly which plugs into and is sup-ported by an electrical wall outlet whose orientation on the wall is either horizontal or vertical.  The assembly, when switched on, produces low-level illumination and at the same time exudes an aromatic vapor.  The assembly includes a reflector shell having housed therein a low-wattage bulb.  Attached to the open front of the shell is a frame adapted to accommodate a removable window cartridge having a transparent plate whose rear face is covered by a thin pad of light-permeable porous material impreg-nated with a volatile aromatic liquid.  The shell is vented, and as the air therein is heated and expanded by heat emanating from the bulb, a convection current is produced which flows across the pad to volatilize the liquid, thereby creating an aromatic vapor that is discharged through the vent.  Adherable to the front face of the window plate is a translucent sheet having a picture thereon of an object possessing a characteristic odor, the fragrance of the aromatic vapor being thematically related thereto.  The sheet is so adhered to the plate as to orient the picture thereon to conform to the existing orientation of the outlet into which the assembly is plugged.
Patent CA-1298405-C (CA)
Inventor: DREXLER JEROME
IPC: G11B7/26
Filed: 1987-10-16
Granted: 1992-03-31
Abstract: Abstract of the Disclosure A method of recording data on a card in which track indicia are laser recorded by a user on at least one end of a card prerecorded with tracks only.  Track indicia include start and stop marks defining usable recordable areas, synchronization marks, error codes and track numbers and track termination codes.  Start and stop marks may be a series of lines recorded in a pattern across the tracks and in addition to demarcating usable recordable areas of the card may indicate the location of track numbers and data areas as well as the particular encoding scheme used on the card.  Data blocks may be written on entire tracks or in sectors.  When   recording error are detected, the data block is rewritten in a new sector or on another track using the same track number.
Patent CA-1312284-C (CA)
Title: Stressed polymeric device for controlled release of a substance to an ambient environment
Inventor: RANADE GAUTAM R
IPC: A61K9/70
Filed: 1987-10-28
Granted: 1993-01-05
Abstract: PC (Ph) 7116 STRESSED POLYMERIC DEVICE FOR CONTROLLED  RELEASE OF A SUBSTANCE TO AN AMBIENT          ENVIRONMENT                           Abstract A matrix device for controlled release of at least one active agent to an ambient environment, said matrix comprising an active agent - or agents - containing polymer which has been subjected to tensile stress. Included is a laminate device comprising at least one matrix as core sheet, said core sheet or sheets com-prising the active agent or agents in a polymer matrix which has been subjected to stress and, in a further embodiment, a porosity enhancing agent in admixture with said agent; the core sheet or sheets being alternately sandwiched or interposed between coextensive inert polymeric films substantially impermeable to said environment and to said agent or agents, said device being perforated by one or a plurality of macroholes extending through said sheets and said films.  Also included are methods for making such a device.
Patent CA-1289833-C (CA)
Title: Working well balloon angioscope and method
Inventor: MACKIN ROBERT A
IPC: A61F2/958
Filed: 1988-01-26
Granted: 1991-10-01
Abstract: ABSTRACT     A transparent plastic collapsible balloon is attached to the distal end of a flexible bronchoscope or angioscope.  The inflatable balloon has a cavity or "working well" at its distal end which communicates by means of a tube with the central channel of the angioscope.  Separate channels of the angioscope allow inflation of the balloon after it has been introduced into a vein or artery and visualization of tissue against which the distal end of the balloon is pressed.  A laser fiber, forceps, or other instrument can be passed through the central channel of the angioscope, and through an opening in the distal end of the balloon into the working well cavity to allow lasing or other procedures to be performed on tissue abutted by the balloon and isolated by the working well cavity, and to also allow direct visualization of such procedures.
Patent CA-1327805-C (CA)
Title: Pilocarpine derivatives
Inventor: AMSTUTZ RENE
IPC: A61P27/02
Filed: 1988-01-28
Granted: 1994-03-15
Abstract: PILOCARPINE DERIVATIVES            Abstract of the disclosure Pilocarpine derivatives of formula I,                 I     wherein R1 to R5 are as defined in the description, are useful in the treatment of senile dementia, Alzheimer's disease, confusional conditions in the elderly, myasthenia gravis, schizophrenia, mania or glaucoma.
Patent CA-1276678-C (CA)
Title: Oxygen-sensing element
Inventor: YAMADA HISAO
IPC: G01N/
Filed: 1988-02-22
Granted: 1990-11-20
Abstract: OXYGEN-SENSING ELEMENT                         Abstract An oxygen-sensing element particularly for use in the exhaust stream of an internal combustion engine. In one embodiment, the sensing element may be a tubular solid electrolyte body with a transverse web forming a relatively shallow recess at one end of the body and a relatively deep tube at the other.  Separate electrodes are formed on the surface of the body proximate the recess and on both opposing sides of the web.  A porous plug disposed in the recess covers one of the electrodes,  When the electrode on the surface of the body is exposed to the exhaust stream of a fuel-rich air-fuel mixture, the EMF across that electrode and the electrode on the underside of the web, which is exposed to fresh air, is indicative of the oxygen content of the exhaust stream.  When an exhaust stream from a fuel-lean air-fuel mixture is present, the magnitude of an oxygen pumping current that flows between the electrodes disposed on opposing sides of the web, in response to a voltage applied across those electrodes, indicates the oxygen content or the exhaust stream.         The sensing element body may be conveniently formed from a slip prepared by ball milling yttria-stabilized zirconia powder with water and a binder.  The slip may be cast in a mold or dried to form a flowable powder that is molded under pressure to form a green body.  After calcining of the green body, electrodes are formed on the body by applying a platinum paste and heating it.  A slurry of ball-milled calcined yttria-stabilized zirconia powder is disposed in the recess.  The calcined green body and slurry are fired to produce a sensing element in which a tightly fitting porous plug, free of cracks and shrinkage away from the body, is disposed in the recess.
Patent CA-1309113-C (CA)
Title: Selective liquid phase disproportionation catalysts for iodoaromatics
Inventor: RULE MARK
IPC: C07C315/04
Filed: 1988-03-16
Granted: 1992-10-20
Abstract: SELECTIVE LIQUID PHASE DISPROPORTIONATION         CATALYSTS FOR IODOAROMATICS                          Abstract The invention relates to a process for isomerizing iodoaromatic compounds selected from the group consisting of iodobenzene, iodobiphenyl or iodonaphthalene, preferably 2-iodonaphthalene, over a non-acidic zeolite catalyst which is a Y-type zeolite containing alkali or alkaline earth cations in the liquid or gas phase in the presence of a source of iodine.
Patent CA-1294381-C (CA)
Title: Display system with symbol font memory
Inventor: CLARKE DAVID A
IPC: G09G5/32
Filed: 1988-03-31
Granted: 1992-01-14
Abstract: DISPLAY SYSTEM WITH SYMBOL FONT MEMORY                                ABSTRACT      In a display system of the type where one or more symbol tables 20 are stored in general purpose storage and include blocks of data forming symbol definitions for each of a set of symbols, and an all points addressable (APA) display buffer 30 is provided which includes on-screen APA storage 32 for data indicative of pels to be displayed on a screen and off-screen APA storage 34 for symbol definitions with buffer control logic 36 for associating symbol definitions in off-screen APA storage with locations in on-screen APA storage such that symbols are displayed at desired locations on the display screen, cache control logic 42 is provided for copying the definition of a symbol for display from the symbol table in general purpose storage to off-screen APA storage if the definition for the selected symbol is not already held in off-screen APA storage, whereby the off-screen APA storage is configured as a cache for holding definitions for selected symbols.  A cache table 40 is provided in general purpose storage  and comprises an entry for each symbol in the symbol set for pointing to the location in off-screen APA storage, if any, at which the corresponding symbol definition is held, each entry in the cache table also being associated with the location in the symbol table at which the corresponding symbol definition is stored.
Patent CA-1314822-C (CA)
Title: Adsorbent cartridge
Inventor: CULLEN JOHN S
IPC: B01D53/04
Filed: 1988-04-25
Granted: 1993-03-23
Abstract: ADSORBENT CARTRIDGE                   ABSTRACT OF THE DISCLOSURE          An adsorbent cartridge having an elongated hollow cylindrical body member fabricated of polyethylene, polyester or polypropylene, spun-bonded polyolefin membranes closing the open ends of the body member, adsorbent within the body member, and raised splines or ribs extending longitudinally on the outer surface of the body member for causing the cartridge to have a different feel than a medicinal capsule with which it may be packaged.
Patent CA-1277647-C (CA)
Title: Self-adjusting headlight system for vehicles
Inventor: KARAS MICHAEL
IPC: B60Q1/08
Filed: 1988-04-28
Granted: 1990-12-11
Abstract: ABSTRACT OF THE DISCLOSURE         The   present  invention  provides  a  self-adjusting headlight  system  for  vehicles  to  maintain  proper  forward vertical alignment of the headlight even when the vehicle is unevenly  loaded  in the front  to  rear  direction.  The  system comprises  a  housing  which  is secured  to  the  body  of  the vehicle.   A  headlight  frame  is  provided,  within which  the headlight is mounted.  The frame is mounted on a pivot secured to the housing,  to pivot freely about a horizonal axis.  The frame  is  balanced  on  the  pivot  so that  the  beam  of  the headlight is normally properly forwardly aligned.  The balance means comprises a pendulum downwardly extending from the frame on  an  arm.    A  portion  of  the  pendulum  is  attractive  to magnetism.   An electromagnet  is secured  to the car body and positioned in the vicinity of that portion of the pendulum so as,  when  actuated,  to  secure  the  pendulum  and  hence  the headlight  frame,  in  that  particular  relative  position  with respect to the car body.  The electromagnet is actuable by a driver as required.  When the electromagnet is actuated,  the headlight frame is balanced on the pivot so that the headlights are properly positioned,  in the vertical plane,  and held in that position until the electromagnet is deactuated.
Patent CA-1330452-C (CA)
Inventor: POHL WOLFGANG D
IPC: G01N37/00
Filed: 1988-04-29
Granted: 1994-06-28
Abstract: ABSTRACT   This atomic force microscope comprises a pointed tip (1) mounted on top of an oscillating crystal (2) which is translatable In xyz-directions by a conventional xyz-drive (4). A potential applied to a pair of electrodes (5, 6) coated on opposite faces of said crystal (2) causes the latter to oscillate with its resonance frequency. As the tip (1) is approached to a surface to be investigated, the frequency of oscillation of the crystal deviates from its original frequency. This deviation can be used in a feedback loop to control thedistance in z-direction of the tip (1) from the surface being investigated and to plot an image of the contour of each scan performed by the tip (1) across the surface.
Patent CA-1311000-C (CA)
Title: Lifting device for templates
Inventor: BOEHM WALTER
IPC: B41F15/40
Filed: 1988-06-13
Granted: 1992-12-01
Abstract: A b s t r a c t :            Described is a lifting device  for  cylindrical  templates  in printing machines, with an inking tube extending through each cylindrical  template,  the lifting device  travelling along a rail  running  parallel  to  the  direction  of  the  cylindrical template and along a rail  travelling in a direction normal thereto and which can be releasably connected to the inking tube.  The  lifting device  is  constructed  in the  form  of a hydraulically or pneumatically operated telescopic arm, always in the vertical position, which carries a tong-like gripper (2) for releasable connection with the inking tube (3).
Patent CA-1335063-C (CA)
Inventor: WAITE WARREN A
IPC: B01D69/12
Filed: 1988-09-16
Granted: 1995-04-04
Abstract: A composite semipermeable membrane on a semiporous support or substrate is produced by employing an interfacial polymerization reaction between (1) an aqueous phase comprising a blend of water soluble and water dispersable compounds and (2) and organic phase comprising poly-functional crosslinking reagents capable of reacting and/or polymerizing with one or more of the ingredients of said aqueous phase.
Patent CA-1303472-C (CA)
Inventor: CARPENTER THERESA L
IPC: C09J7/02
Filed: 1988-10-31
Granted: 1992-06-16
Abstract: Pressure-Sensitive Adhesive Closure for Disposable Diaper Abstract A pressure-sensitive adhesive closure for a disposable diaper can exhibit high peel resistance both at low and high speeds while its peelability at high speeds is not excessively shocky when it employs a pressure-sensitive adhesive of a certain rheology and it has, covering the fastening area, a polyolefin layer having microtopographical features as in Figs. 1-6 of the drawing.  As seen in Figs. 1-6, suitable microtopographical features are provided by a large number of closely spaced asperities at least two micrometers in height that have a jagged appearance at 500x.  A pressure-sensitive adhesive of suitable rheology can be provided by a blend of an AB block copolymer, such as a copolymer of styrene and either isoprene or butadiene, and tackifying resin, preferably a mixture of liquid and solid tackifying resins.
Patent CA-1321323-C (CA)
Inventor: STORACE ANTHONY
IPC: B41K3/10
Filed: 1988-11-14
Granted: 1993-08-17
Abstract: PRINTWHEEL DETENT DISENGAGING APPARATUS     ABSTRACT OF THE DISCLOSURE       A printwheel detent disengaging mechanism enables low-torque high-speed automatic printwheel setting.  In the engaged position spring-loaded ball in a rotatable shaft bears on a detent ball disposed in a bore in a sleeve surrounding the shaft to cam the detent ball into detent vees of the printwheel.  When the shaft is rotated so that the spring-laded ball no longer bears on the detent ball, the detent force is removed and low torque printwheel setting may be accomplished.  When setting is completed, the shaft is rotated back into position where the spring-loaded ball bears on the detent ball.
Patent CA-1301936-C (CA)
Title: Paint formula retrieval and management system and method
Inventor: YAUK ROBERT H
Filed: 1988-11-24
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE A formula retrieval and management system (200) for retrieving paint formulas, creating paint formulas, updating paint inventory, and providing miscellaneous reports.
Patent CA-1313388-C (CA)
Title: Spray dampener valve assembly and control system
Inventor: HULTBERG STEN
IPC: B41F33/00
Filed: 1989-01-11
Granted: 1993-02-02
Abstract: Abstract Spray Dampener Valve Assembly and Control System A sprayer assembly for a printing press dampener roll comprises a plurality of sprayers, each including a nozzle section and a valve section. The nozzle section includes a valve housing having a valve element at its front end defining a spray outlet, and a valve seat inserted into its rear end.  The valve section includes a plunger reciprocably mounted in a solenoid, and a valve stem mounted frictionally in a front end of the plunger for engaging the valve seat.  The valve stem can be replaced by removing the valve section and pulling the stem out of the plunger.  The sprayers are controlled to emit fluid in pulses.  During low press speeds, fluid output is adjusted by varying the interval between pulses.  During high speed operation, fluid output is adjusted by varying the pulse time.  Furthermore, the outermost nozzles of a spray bar are operated by dedicated control channels to permit better spray patterns.
Patent CA-1341499-C (CA)
Title: Compositions electrically superconducting above 120.degree.k and processes for their preparation
Inventor: PARKIN STUART S P
IPC: B22D41/00
Filed: 1989-01-17
Granted: 2006-02-28
Abstract: Stable, bulk electrical superconductors are prepared by heating mixed metal oxides in the presence of oxygen in a closed vessel in a preheated oven for 1-5 hours at 850-900°C. The final oxides are in the molar ratio Tl0.6-1.1 Ca2-3Ba0.75-1.25Cu2-3O(5+.delta.)-(9+.delta.), where .delta. is less than one.
Patent CA-1325262-C (CA)
Inventor: IKAWA FUMIHIRO
IPC: G06F11/20
Filed: 1989-02-21
Granted: 1993-12-14
Abstract: ONE-TO-ONE LINE SWITCHING SYSTEM              ABSTRACT OF THE DISCLOSURE       Disclosed is a one-to-one line switching system for switching between a hot line and a standby line in a one-to-one correspondence.  To enable removal of a switching unit while in use, from a mother board for change over or repair, a pair of switching units (1 and 2 or 3 and 4) is provided at the transmitting part or at the receiving part, the earth element in one of the pair being connected to the other of the pair and the other of the pair being pulled up by a voltage, whereby when one of the pair in use is removed, the other of the pair can pass the input signal.