baber/WOPTO huggingface dataset:
Patent CA-1308900-C (CA)
Title: Direct electrostatic printing apparatus and printhead cleaning structure therefor
Inventor: SCHMIDLIN FRED W
IPC: B41J2/415
Filed: 1987-10-26
Granted: 1992-10-20
Abstract: ABSTRACT OF THE DISCLOSURE   Direct Electrostatic Printing apparatus including structure for removing wrong sign developer particles from a printhead forming an an integral part of the printing device. The printing device includes, in addition to the printhead, a conductive shoe which is suitably biased during a printing cycle to assist in the electrostatic attraction of developer passing through apertures in the printhead onto the copying medium disposed intermediate the printhead and the conductive shoe. During a cleaning cycle, the printing bias is removed from the shoe and an electrical bias suitable for creating an oscillating electrostatic field which effects removal of toner from the printhead is applied to the shoe.
Patent CA-1285428-C (CA)
Title: All-terrain amphibian vehicle
Inventor: SIREN ANDREW O
IPC: B60F3/00
Filed: 1987-12-14
Granted: 1991-07-02
Abstract: ABSTRACT        An amphibious vehicle may be connected end-to-end with  a  series  of other similar vehicles to provide an amphibious vehicle train.  Each vehicle has a hull with a plurality  of  wheels  mounted  on  each  side.   Two drive trains a? provided for driving the trains on respective sides of  the hull.   The drive trains can be driven at differential speeds to steer the vehicle.  At each end of the vehicle are two power take-off means,  one for each drive train coupled to a similar power take-off in the next adjacent vehicle.   The power plant for the complete train is found in a single unit.
Patent CA-1306807-C (CA)
Title: Apparatus and method of encoding and decoding barcodes
Inventor: STEWART STEPHEN R
IPC: G06K1/12
Filed: 1988-01-29
Granted: 1992-08-25
Abstract: APPARATUS AND METHOD OF ENCODING                     AND DECODING BARCODES                  ABSTRACT OF THE DISCLOSURE    A method and system for reading encoded information from conventional bar codes and from hand-encoded barcodes is pro-vided.  The method and system include processing which elimi-nates false spaces and bars in conventional pre-encoded printed barcode formats as well as those in hand-encoded barcode formats.  A pre-printed barcode form containing a plurality of bars and spaces representing the elements of a character code is used in which at least one of the bars is designed to be modified by hand to represent the encoded character.  A barcode reader system scans the barcode and processes the scanned barcode symbol into decoded form.  A barcode label for encoding a multi-character string readable by a barcode reader is also provided which includes a plurality of data lines which con-tains barcode readable start and stop codes unique to each data line and a barcode readable digit form located between the start and stop code of each data line.
Patent CA-1327359-C (CA)
Inventor: FROLICH JUERGEN C
IPC: C07C405/00
Filed: 1988-02-16
Granted: 1994-03-01
Abstract: Abstract:     The invention describes prostaglandin E1 derivatives as pharmacologically active agents, and pharmaceutical compositions containing  these  compounds,  especially  for  transcutaneous administration.  The derivatives have the general formula:                              (I) in which R1 is a hydrogen atom and R2 is a C1-4 alkyl residue.
Patent CA-1314110-C (CA)
Inventor: SARGOOD STEPHEN K
IPC: H01L31/18
Filed: 1988-02-17
Granted: 1993-03-02
Abstract: ABSTRACT           A planar, p-n junction device has electrical contact made to the active region, the capping layer (4) having been selectively removed through a mask (5,6).  The selective removal of the capping layer may be performed prior to a diffusion step in which the junction is formed, or the dopant may be diffused through the capping layer (4) and the selective removal performed subsequently.  In the latter instance the capping layer (4) is preferably etched through a second mask (8,9) having a smaller window (9) in register with the window (6) in the mask layer (5) which is used for the diffusion stage.      The device finds particular application as a photodiode detector in optical communications.
Patent CA-1308197-C (CA)
Title: Method and apparatus for combining encoding and modulation
Inventor: TANNER ROBERT M
IPC: H04L27/34
Filed: 1988-02-29
Granted: 1992-09-29
Abstract: METHOD AND APPARATUS FOR COMBINING ENCODING AND MODULATION               ABSTRACT OF THE DISCLOSURE A method and apparatus for combining encoding and modulation creates signal sets from available ampli-tude and phase modulations by indexing ordered subspaces. The subspaces need not be limited to the class of sub-spaces known as binary subspaces.  The resultant signal sets, for a preselected power and bandwidth, are widely separated and unlikely to be confused by the effects of channel noise.  Such signals can be in either finite block or convolutional form, depending on the natural format of the desired transmission.  Further according to the invention are basic apparatus for encoding and modulating as well as demodulating and decoding a signal in accordance with the invention.  Specifically, a method is provided for decoding that incorporates a specific type of decoding/demodulation techniques which develops accurate estimates of the information from the received signal in a computationally efficient manner and which permits high speed operation using soft-decision decoders.
Patent CA-1310258-C (CA)
Title: High-speed web processing means
Inventor: MARTINY MICHAEL L
IPC: B26D1/62
Filed: 1988-03-30
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE          A method and apparatus for presenting a serial succession of cut sheet portions to a work station.  The sheet portions are cut from a continuous webbing which is processed by a cutting station and a web-breaking station.  The cutting station partially severs the web downstream of its leading free end so as to define a first sheet portion between that free end and the point of cutting, with the first sheet portion connected to the web by one or more tab connectors.  The webbing is then advanced downstream to the tab-breaking station where the tabs are broken to free the first sheet portion for independent movement further downstream.  A vacuum belt engages the webbing, and particularly the downstream edge adjacent the partial severing, with a vacuum belt.  The vacuum belt engages the webbing by bridging the partially-severed cut portion, so as not to interfere with the downstream tab-breaking apparatus.  A continuous control over the cut sheet portions is provided prior to the breaking of the tab portion, and continues to the final delivery of the cut sheets.
Patent CA-1318258-C (CA)
Title: Filtration apparatus
Inventor: SCHINDLER ROBERT H
IPC: B01D29/11
Filed: 1988-04-27
Granted: 1993-05-25
Abstract: ABSTRACT OF DISCLOSURE     The invention concerns a filtration apparatus comprising a vessel divided into two chambers by a filter. An inlet orifice is provided in the vessel for liquid to be fil-tered, as well as an outlet orifice for the filtered liquid. A distributor device movable from the exterior of the vessel between a filtration position and a rinsing position is arranged in the vessel. In the filtration position of the distributor liquid is fil-tered into the first chamber, which the liquid leaves by passing through the filter, to penetrate into the second chamber, which it leaves, in the filtered condi-tion, through the outlet orifice. In the rinsing position the liquid flows directly into the second chamber and passes through the filter in the reverse direction to penetrate into the first chamber which it leaves charged with impurities to be eliminated by an escape orifice arranged in the vessel.
Patent CA-1322003-C (CA)
Title: Dipyridoxyl phosphate nmri contrast agents
Inventor: ROCKLAGE SCOTT M
IPC: C07F15/00
Filed: 1988-04-28
Granted: 1993-09-07
Abstract: Abstract of the Invention N,N'-bis-(pyridoxal-5-phosphate)-alkylenediamine-N,N'-diacetic acids, N,N'-bis-(pyridoxal-5-phosphate)-1,2-cycloalkylenediamine-N,N'-diacetic acids, and N,N'-bis-(pyridoxal-5-phosphate)-1,2-arylenediamine-N,N'-diacetic acids, the corresponding monophosphate compounds and monoacetic acid compounds, and their salts and esters form stable, highly soluble chelates with paramagnetic metal ions, and are highly effective NMRI contrast agents.  Preferred contrast agents are paramagnetic ion chelates of N,N'-bis-(pyridoxal-5-phosphate)ethylene-diamine-N,N'-diacetic acid, N,N'-bis-(pyridoxal-5-phosphate)trans-1,2-cyclohexylenediamine-N,N'-diacetic acid, N,N'-bis-(pyridoxal-5-phosphate)trans-1,2-arylened-iamine-N,N'-diacetic acid, and the soluble calcium salts thereof.    Novel intermediates for forming these compounds are N,N'-bis(pyridoxal-5-phosphate)alkylenediimines, N,N'-bis(pyridoxal-5-phosphate)alkylenediamines, N,N'-bis(pyridoxal-5-phosphate)-1,2-cycloalkylenedi-imines, N,N'-bis(pyridoxal-5-phosphate)-1,2-cycloalky-lenediamines, N,N'-bis(pyridoxal-5-phosphate)-1,2-ary-lenediamines, and the corresponding monophosphate compounds.
Patent CA-1294933-C (CA)
Title: Device for maintaining a strap of a safety belt in an adjustable position
Inventor: ESCARAVAGE GERARD
IPC: B60R22/20
Filed: 1988-05-26
Granted: 1992-01-28
Abstract: DEVICE FOR MAINTAINING A STRAP OF A SAFETY BELT            IN AN ADJUSTABLE POSITION              A B S T R A C T   The device comprises a body (10), a lock (20) and a strap holder (30) and is adapted to be fixed to a structure (50).          The body comprising a support (11) and a base (12) which is provided with a slot (13) receiving the keeper (21) of the lock.  This keeper, which is normally biased by a spring (23) into the engaging position in which it traps the catch (22)of the lock, is movable to a disengaging position in which the catch, which is connected to the strap holder, can be shifted between various positions.  Application in the chest part of a safety belt strap for an automobile.    Figure 2.
Patent CA-1302638-C (CA)
Title: Fluorine-containing cyclic polymer
Inventor: NAKAMURA MASARU
IPC: C08F16/32
Filed: 1988-08-12
Granted: 1992-06-02
Abstract: ABSTRACT   A fluorine-containing thermoplastic resinous polymer which consists essentially of a group (a) of repeating units of a cyclic structure to be represented by the following general formula:         and/or              (where: n is an integer of 1 or 2); the polymer having a molecular weight such that the intrinsic viscosity thereof may become at least 0.1.   A fluorine-containing thermoplastic resinous polymer which consists essentially of: i) a group (a) of repeating units to be represented by the following general formula:                 and/or               (where: n is an integer of 1 or 2), and ii) a group (b) of repeating units to be represented by the following general formula:         ?CF2-CFX?     (where: X is selected from fluorine, chlorine.          O-CF2CF2CF3, O-CF2CF(CF3)OCF2CF2SO2F, and O-CF2CF2CF2COOCH3) the polymer containing therein at least 80% by weight of the group of repeating units (a), and having a molecular weight such that the intrinsic viscosity thereof may be become at least 0.1.
Patent CA-1332919-C (CA)
Inventor: BORDT DALE
IPC: A61K39/265
Filed: 1988-09-26
Granted: 1994-11-08
Abstract: Sterile pharmaceutical compositions for use in therapy especially inactivated vaccines for use in prophylaxis, are prepared by inactivating a live virus or bacterium with ascorbic acid and/or a salt thereof in the presence of oxygen and a source of heavy metal ions. Methods of treating animals, including humans, with such compositions are also disclosed.
Patent CA-1317857-C (CA)
Title: Homoepitaxial growth of alpha-sic thin films and semiconductor devices fabricated thereon
Inventor: KONG HUA-SHUANG
IPC: C30B25/02
Filed: 1988-10-25
Granted: 1993-05-18
Abstract: HOMOEPITAZIAL GROWTH OF ALPHA-SIC THIN FILMS AND SEMICONDUCTOR DEVICES FABRICATED THEREON                 Abstract of the Disclosure Device quality monocrystalline Alpha-Sic thin films are epitaxially grown by chemical vapor deposition on Alpha-SiC [0001] substrates prepared off axis.     FILM.1 .25 (8B) RSF
Patent CA-1305618-C (CA)
Title: Method and apparatus for orienting and loading cartridges
Inventor: BRANDENBURG ERNEST
IPC: F41A9/83
Filed: 1988-11-04
Granted: 1992-07-28
Abstract: Abstract A method and an apparatus for orienting and loading a plurality of unoriented rim-fire cartridges  into a magazine are provided.  An orienter apparatus employs gravity  to  orient  rim-fire  cartridges  by  hanging  a plurality of cartridges from a number of parallel rails.     The orienter is repositioned to a second or vertical configuration so that gravity can be used to feed the columns  of oriented cartridges through a chute.   In another embodiment,  a collector apparatus is used to pick up a plurality of cartridges and hold the cart-ridges in a holding portion.  The orienter or collector operatively engages with a loader which employs a cam-ming mechanism to move cartridges one at a time into a magazine.  The cartridges are placed in a first angular relationship with respect to the magazine opening and are moved through the opening while changing the angular relationship of the cartridge with the magazine opening.          In  another  embodiment  for use with,  for  example,  9 millimeter cartridges, a cartridge moving means is used to move cartridges, one at a time, as provided in single file by collector or orientor.  The moving means moves a cartridge in a first direction towards the open end of the magazine and then in a second direction into the open end of the magazine.
Patent CA-1324700-C (CA)
Title: Process for making ultra high melt flow rate propylene polymers
Inventor: WALKER DALE A
IPC: C08F110/06
Filed: 1988-11-24
Granted: 1993-11-23
Abstract: A PROCESS FOR MAKING ULTRA HIGH MELT FLOW RATE PROPYLENE POLYMERS by Dale A. Walker Abstract of the Invention A process for making, without post reactor modification, ultra high melt flow rate propylene polymers with high melt strength, melt elasticity and shear sensitivity and characterized in that the molecular weight  distribution  is  relatively  constant  as  the  melt  flow  rate increases,  which  comprises  polymerizing  propylene,  and  an  optional comonomer, in the gas phase in the presence of a high activity catalyst with a modest demand for hydrogen.
Patent CA-1317264-C (CA)
Title: Variable beamwidth stage light
Inventor: RICHARDSON BRIAN E
IPC: F21V7/16
Filed: 1988-12-02
Granted: 1993-05-04
Abstract: Abstract of the Disclosure A variable beamwidth stage light (10) having an axially movable reflector (18) for changes in beamwidth.  The reflector has a plurality of radially outwardly and axially forwardly extending leaves (62) in side-by-side relation defining a bowl-shaped reflector surface.  A stationary support flange (58) frictionally contacts the radially outward surface of each leaf.  The reflector base (26) is sandwiched between a base member (28) and a ring member (24). A motor driven lead screw (30) is attached to the base member to move the reflector axially relative to the support flange. The reflector defines first and second focal points (F1 and F2) along the axis of the reflector.  A light source (16) is fixed at the first focal point, which remains substantially fixed relative to the base member. Contact of the support flange with the reflector leaves causes the diameter of the reflector leaves to vary as the base member is moved, thereby displacing the second focal point and varying the beamwidth issuing from the reflector.
Patent CA-1335064-C (CA)
Inventor: SUNDET SHERMAN A
IPC: C08G69/26
Filed: 1988-12-06
Granted: 1995-04-04
Abstract: A multistage process for preparing interfacially polymerized polyamide reverse osmosis membranes on a microporous support is disclosed.  the process involves applying a solution containing from 1 to 10 wt % of an aromatic diamine having 1 or 2 aromatic rings and 2 to 3 amino groups in a first solvent to the microporous substrate.  Then a solution of an aromatic or cyclophatic acyl chloride having 1 or 2 rings and 2.2 to 4 acyl chloride groups in a solvent immiscible with the first solvent is applied to the microporous substrate.  Then a solution of different acyl chlorides is applied to the substrate. The acyl chlorides in this second solution can have 2 to 4 acyl chloride groups attached to an aliphatic group of 6 to 12 carbon atoms or an aromatic or cycloaliphatic group having 1 or 2 rings and containing 8 to 14 carbon atoms.  Also suitable for the second treatment are bis chloroformates.
Patent CA-1310101-C (CA)
Title: Method for measuring acoustic impedance and dissipation of medium surrounding a borehole
Inventor: WIGGINS JAMES W
IPC: G01V1/44
Filed: 1988-12-13
Granted: 1992-11-10
Abstract: ABSTRACT    The invention is the use of standing waves to generate a well log.  By measuring changes in energy dissipation from the standing wave along the well-bore, the formation may be evaluated for permeability variations.   Variations in the tube wave velocity may be determined from variations in the frequency of a standing tube wave having a selected wave length.   Shear wave velocity of the surrounding formation may be determined from the tube wave velocity.
Patent CA-1298663-C (CA)
Title: Method of operating a computer for rank ordering and weighting category alternatives
Inventor: SANDERS MICHAEL J
IPC: G06F17/30
Filed: 1988-12-16
Granted: 1992-04-07
Abstract: METHOD OF OPERATING A COMPUTER FOR RANK     ORDERING AND WEIGHTING CATEGORY ALTERNATIVES            Abstract of the Invention A user interactive method of operating a computer is provided for producing a user-weighted ordinal rank order preference scale of rank ordered expression alternatives associated with a plurality of expressions.   In the preferred method, the user interacts with the computer system to initially rank all  of  the  alternatives  and  then  assigns  point values to the alternatives whereupon the computer calculates  a  point  value  weight  for  each  factor level.     (Docket No. 19695)
Patent CA-1289363-C (CA)
Title: Culture vessel
Inventor: NAGAYA TOSHIO
IPC: C12M1/24
Filed: 1988-12-22
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE    A culture vessel having a main body and a cover for closing the open top of the main body in which the main body and the cover are made of a thin plastic material having light transmission and heat resistance, the main body has a bottom and a low side wall for accommodating a medium, the side wall has a cover engaging portion formed on the upper end thereof, the cover has a top plate and a vertical  side  wall,  the  side  wall  has  a  main  body engaging portion meshable with the main body formed on the lower end thereof, and lenses for observing, at the side wall,  the interior of the vessel  in a magnified image are provided on the side wall of the cover.
Patent CA-1328851-C (CA)
Inventor: GRABENKORT RICHARD W
IPC: A61J1/05
Filed: 1988-12-22
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE           Improved flexible ratchet teeth are provided for allowing relative rotational movement of one peripheral surface relative to an encompassing peripheral surface. Such teeth allow relative rotational movement in one direction of rotation only during which the ratchet teeth of one peripheral surface slide over the ratchet teeth of the other.  The flexible teeth which may be disposed on either or both peripheral surfaces prevent distortion of the encompassing peripheral surface obtained in the prior art when ratchet teeth of solid construction are employed.
Patent CA-1339554-C (CA)
Title: Composite alloy steel powder and sintered alloy stell
Inventor: TAKAJO SHIGEAKI
IPC: C22C38/12
Filed: 1989-01-05
Granted: 1997-11-25
Abstract: Provided herein are high-strength high-toughness sintered alloy steel and composite alloy steel powder useful for the production thereof.  The sintered alloy steel contains, as the alloy components in the final product, Ni, Mo, and/or W, and C, if necessary, said alloy being composed of 0.50-3.50 wt% of Ni, 0.65-3.50 wt% of Mo + 1/2W, (and 0.3-0.8 wt% of C, if necessary), and the remainder of Fe and inevitable impurities, and has a density higher than 7.0 g/cm3 and a tensile strength higher than 130 kgf/mm2 after quenching and tempering.  The composite alloy steel powder is composed of iron powder particles and powdery alloy components attached by diffusion to part of the surface of the iron powder particles, with the content of Ni and the content of Mo + 1/2W in the steel powder of particle diameter smaller than 45 µm being in the range of 2.0-4.2 times the average content in the entire steel powder.  The sintered alloy steel has high strength and high toughness despites its comparatively low alloy composition and can be produced without any special equipment.  The heat-treated sintered steel meets the requirements for automotive parts and the like.
Patent CA-1325382-C (CA)
Inventor: OGAWA TAKAHIRO
IPC: A61K31/195
Filed: 1989-01-24
Granted: 1993-12-21
Abstract: TITLE OF THE INVENTION  A locally administrable therapeutic composition for inflammatory disease ABSTRACT OF THE DISCLOSURE This invention relates to a locally administrable therapeutic composition for inflammatory disease which is characterized by comprising benzoylphenetylacetic acid of the formula   (wherein R is a hydrogen or halogen atom), or a salt thereof, or the hydrate of said acid or salt, as active ingredient.    The ophthalmic composition according to the invention can treat effectively inflammatory eye disease by topical application, is not irritant to the eye, and has a superior effect to conventional drugs of the same or similar type.    The aqueous composition prepared in accordance with this invention has an excellent stability and can be used advantageously as a nasal or otic composition as well as ophthalmic one in the treatment of inflammatory otic or nasal disease.
Patent CA-1316380-C (CA)
Title: Eyewear
Inventor: VACILOTTO STEVEN J
IPC: A61F9/02
Filed: 1989-01-26
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE                         EYEWEAR   Eyewear such as sunglasses comprises a one-part lens and a frame therefor having a continuous channel therearound into which the lens is receivable. Preferably at least one of the lens and the frame are elastically deformed when the lens is engaged in the frame, so tending to strengthen the lens-frame combination. Suitably the channel has a non-uniform depth in preselected portions along its length, whereby different frames may have a different appearance while utilizing identical lens. The frames suitably include a gate which may be opened to provide access to the channel when inserting or removing the lens.
Patent CA-1319730-C (CA)
Title: Vacuum-type circuit interrupter
Inventor: VOSHALL ROY E
IPC: H01H33/662
Filed: 1989-01-30
Granted: 1993-06-29
Abstract: 8                   53,303 ABSTRACT OF THE DISCLOSURE           A  vacuum  circuit  interrupter  comprising  an insulated, evacuated, cylindrical housing for a stationary electrode and a movable  electrode,  with  an  arc  shield provided with a predetermined spacing from and connected to the stationary electrode.  The dimensions of the electrodes are asymmetrical with the movable electrode being smaller.