baber/WOPTO huggingface dataset:
Patent CA-2035883-A1 (CA)
Title: Centrifugal separator
Inventor: KNELSON BENJAMIN V
IPC: B04B7/08
Filed: 1990-06-28
Abstract: ABSTRACT OF THE DISCLOSURE CENTRIFUGAL SEPARATOR   A  centrifugal  separator  for  extracting  heavy metals from a slurry comprises a centrifuge bowl (30) having an inwardly facing surface over which the slurry runs.  A dam at a discharge  end  of  the  surface  forms  a  shallow  layer (55)  of particles which separate preferentially the heavy metals.   The surface  includes  a  portion  formed  by  a  plurality of  annular membrane portions (44)  spaced axially and separated by radial rings (42) extending from the surface to a supporting metal bowl (36).   The membranes are deflated or retracted to gradually form annular cups for receiving the separated metals.  The membranes are then inflated to discharge the collected materials while the feed is temporarily halted and the bowl continues to rotate.
Patent CA-2035956-A1 (CA)
Inventor: STARK IVAN L
IPC: E05D15/22
Filed: 1991-02-07
Abstract: A jamb liner, or facing member, for movably mounting windows along their side edges in channels or runs, in which a concealed elongated chamber is provided for a coil spring or the like used as part of the balance or positioner mechanism by which the window is supported in different positions along the length of the jamb as it is opened and closed during use.  Preferably, such concealed chamber includes an elongated wall which projects outwardly from the jamb liner and has an arcuate or other angularly-configured cross-section, such that it presents a generally closed appearance when viewed from a position near the window.  Such chamber-concealing wall defines an elongated opening through which the balance device may communicate for access by the window  ash, for supporting the latter and positioning it.  In addition, a novel balance apparatus is disclosed which comprises a friction shoe configured to slidably move within the aforementioned chamber and frictionally engage a rib extending therewithin, as a function of and in response to the applied weight of the sash.
Patent CA-2035979-A1 (CA)
Inventor: KRONENBERG MAX
IPC: E06B3/96
Filed: 1991-02-08
Abstract: ABSTRACT OF THE DISCLOSURE           A plug connector for hollow spacer profiles used in insulated glass is disclosed.  The plug connector has a box type cross section with a center web and side webs. Triangular openings are found in the center web either side of the center transverse axis with the point of the triangle facing the nearest end.  The plug connector is configured as a stamped and bent component made from sheet steel with an essentially U-shaped cross section.  The side webs have a plurality of bent-out retainer catches which provide lateral guidance while also serving as pull-out locks.
Patent CA-2037506-A1 (CA)
Inventor: CHERUKURI SUBRAMAN R
IPC: A23L7/10
Filed: 1991-03-04
Abstract: An improved food acid delivery system that effects a controlled release of the acid provides prolonged sourness, flavor and juiciness duration in chewing gums, pharmaceuticals and other confections.  The food acid is encapsulated in a matrix comprised of an emulsifier and a polyvinyl acetate, the type of which is selected according to the water solubility of said food acid.  A chewing gum composition employing the delivery system and a method for the preparation of both the delivery system and the gum composition are disclosed.
Patent CA-2038483-A1 (CA)
Title: Tool for driving fastening elements into hard receiving materials
Inventor: JOSEF BECK
IPC: B25C1/08
Filed: 1991-03-18
Abstract: ABSTRACT OF THE DISCLOSURE         Tool  for driving fastening  elements  into  a hard receiving material,  such as concrete, masonry,  rock and the like, has a first device (1) for drilling a fastening element into the hard material and a second device (2) for axially propelling the fastening element into the receiving material after it has been partly drilled in. The first device (1) provides a borehole in the hard receiving material by applying rotary movement to the fastening element, possibly with the addition of axially directed striking force.  The second device (2) completes the insertion of the fastening element into the receiving material by directing an axial force produced by high pressure gases against the partly drilled in fastening element.
Patent CA-2038498-A1 (CA)
Inventor: STEGEMAN GEORGE T
IPC: F01L1/24
Filed: 1991-03-18
Abstract: VALVE TRAIN WITH LASH/COMPLIANCE COMPENSATION Abstract of the Disclosure Modified cams and cam followers are designed to remove lash arising from clearances and compliance in valve train components.  The cam followers have a crowned cam contacting surface having a crest, and the cams have a relief formed in a part of the base circle opposite the lift profile.  The relief extends across the area opposed to the crest so that in the region of the relief, the cam engages the follower in a path offset from and lower than the crest.  The cam regions remote from the relief contact the follower on the crest.  When the cam moves from the offset contact to the crest contact the valve train will be compressed just enough to remove the compliance prior to lift profile engagement.  If any lash is present, it is also removed by the same action.
Patent CA-2039599-A1 (CA)
Title: Solid support having antibodies immobilized thereon
Inventor: BAHAR IZAK
IPC: G01N33/552
Filed: 1991-04-02
Abstract: SOLID SUPPORT HAVING ANTIBODIES IMMOBILIZED THEREON               ABSTRACT OF THE DISCLOSURE            There is disclosed a solid support having antibodies immobilized thereon. The specific antibodies of interest are immobilized on the solid support as part of a complex which includes a nonspecific antibody and an antibody directed against the Fc fragments of the specific and nonspecific antibodies. In a preferred embodiment the solid support is used in solid phase competitive immunoassays and provides improved signal levels and desirable steeper standard curve slopes in the desired assay sensitivity range.
Patent CA-2039995-A1 (CA)
IPC: A42B3/22
Filed: 1991-04-08
Abstract: ABSTRACT OF THE DISCLOSURE    A helmet for vehicle ride includes a cap body, a visor mounted on the cap body to define a travelling-wind flow-in space between the visor and a front wall of the cap body, and an air intake hole provided in the front wall to be open to the travelling-wind flow-in space.  The visor includes an escape opening for permitting the travelling wind taken into the travelling-wind flow-in space to be escaped therethrough. and a shutter for opening and closing the escape opening.
Patent CA-2040527-A1 (CA)
Inventor: NAKAZAWA MASATAKA
IPC: H01S3/063
Filed: 1991-04-16
Abstract: A  core  waveguide having a  substantially  rectangular cross section,  with  the  width   thereof  greater  than  the thickness   thereof,  is  provided in a cladding  formed  on  a substrate, and a rare earth element-doped layer is provided  in the  core  waveguide  along the waveguiding  direction  of  the waveguide.  With the width  of the core waveguide  set  gearter than  the  thickness   of  the  core  waveguide,  good  optical confinement  in  the  width  direction  of  the  waveguide   is obtained, which enables light to be absorbed by the rare  earth element-doped  layer  efficiently and  concentratedly.   It  is thereby  possible  to  achieve  a  marked  improvement  in  the excitation  efficiency of excitation power.  Thus, an  enhanced exciation  efficiency is achieved with less addition of a  rare earth element, and a high-gain optical amplification  waveguide free of concentration extinction is provided.
Patent CA-2040641-A1 (CA)
Title: Deinking agent for recycling printed waste papers
Inventor: KAWAMORI YUKIYOSHI
IPC: D21C5/02
Filed: 1991-04-17
Abstract: The present invention relates to a deinking agent used in recycling printed waste papers, e.g. newspapers, magazines, leaflets and the like, mainly containing one or more additives selected from the group comprising (a) additives made by adding one or more selected from alkylene oxides to at least one selected from dimer acids and polymer acids of higher unsaturated fatty acids having a carbon number of 16~20; (b) additives made by adding one or more selected from alkylene oxides to at least one selected from partial esters which are made of an alcohol having a carbon number of 1~18 and dimer acids and polymer acids of higher unsaturated fatty acids having a carbon number of 16~20; (c) additives made by adding one or more selected from alkylene oxides to one or more selected from dicarboxylic acids or dicarboxylic acid monoesters represented by the formula(I).     (see fig. I)           I     wherein one X is COOH and the other X is H or CH3; Y is H or R and R is an alkyl group having a carbon number of 1~18.
Patent CA-2042063-A1 (CA)
Title: Composite materials useful in the protection of aircraft structures
Inventor: LEE PETER R
IPC: B32B5/18
Filed: 1990-11-08
Abstract: A composite material useful in the absorption of blast and fragments produced by an explosion which composite material comprises a laminate formed of one or more layers of lightweight foamed or cellular material sandwiched between layers of tough lightweight impact resistant material, the layers of impact resistant material having a multiplicity of holes formed therethrough.
Patent CA-2048822-A1 (CA)
Title: Apparatus for placing a carriage on a track
Inventor: THEURER JOSEF
IPC: E01B37/00
Filed: 1991-08-08
Abstract: An apparatus for placing a carriage linked to a frame of a track working machine on a track comprises a rail sensing element mounted on the carriage for sensing a respective track rail, the rail sensing element being positioned in the radial plane of the flanged wheel when the carriage is placed on the track and emitting a control signal in this position. A hydraulic drive for displacing the carriage transversely with respect to the track links the carriage to the track working machine frame. In response to the control signal, the operation of the hydraulic drive and the transverse displacement of the carriage is interrupted.
Patent CA-2052335-A1 (CA)
Title: Portable sample cylinder with reduce seal permeability
Inventor: NIEMBERGER SPENCER M
IPC: G01N1/14
Filed: 1991-09-27
Abstract: Abstract of the Disclosure A  portable  sample  cylinder  assembly  is  provided for transporting a fluid.  The sample cylinder assembly includes a  housing defining  in  part  an  internal  fluid  chamber,  a first end cap at one end of the housing, and a second end cap at an opposing end of the housing.  At least one of the end caps includes a stop surface and an annular groove.  An elastomeric seal is positioned within the groove for static sealing between the end cap and the housing.  The end of the housing   includes   an   end   surface   for  metal-to-metal engagement with  the  stop  surface,  and  a  compressional surface   for   applying  a   compressional   force   to  the elastomeric seal in response to axial movement of the end surface toward the stop surface.   A plurality of connector rods may be used to controllably move the end cap axially toward the housing and thereby compress the elastomeric seal to reduce  the  permeability of  the seal.   The elastomeric seal preferably has a circular cross-sectional configuration prior to compressional force being applied to the seal, and a  base  portion  of  the  groove opposite  the  compressional surface  with  respect  to  the  elastomeric seal  as  a semi-circular cross-sectional configuration.
Patent CA-2053881-A1 (CA)
Title: Apparatus and method for providing an antigravational force
Inventor: MILLS RANDELL L
IPC: G21K1/00
Filed: 1990-06-14
Abstract: 2053881 9016073 PCTABS00003 A method and means for providing antigravitational force comprising means for providing a source of matter having a spacetime curvature opposite that of a gravitating body where opposite curvatures provide mutually repulsive antigravitational force, and method and means for applying a force on the oppositely curved matter from the source wherein in the case of the Earth, the resulting force balance provides repulsive gravitational work on the oppositely curved matter and the gravitational field of the gravitating body in the first positive curvature of spacetime. The opposite, or negative curvature of matter is provided according to a two-dimensional manifold of negative curvature derived on a novel atomic theory which is consistent with Newtonian mechanics, Maxwell's equations, atomic theory, General Relativity and the weak and strong nuclear forces and which permits the calculation of any matter, energy, or force in terms of fundamental constants of nature. According to the present invention the spacetime manifold of negative curvature is a solution of the equations and boundary conditions of the novel atomic theory comprising, in part a three-dimensional wave equation. The manifold satisfies the boundary condition that its spacetime Fourier transform contains no components which are synchronous with waves traveling at the speed of light; therefore, the manifold is non-radiative. In one embodiment, the matter of negative curvature provided by the source moves at a constant velocity at force balance to produce useful work against the gravitational field of the gravitating body to provide apparatus useful to produce levitation and propulsion. In one embodiment, electromagnetic force is converted to gravitational force and subsequently converted to a mechanical force which provides the useful propulsion or levitation. In alternative embodiments, the electromagnetic force is provided by a generator driven by steam, for example, where the energy of the strong nuclear force provides the heat energy to provide the steam. Alternatively, the heat energy is converted directly to the electromagnetic force via a generator such as a thermionic generator.
Patent CA-2054434-A1 (CA)
Title: Hydrodenitrification process
Inventor: SMEGAL JOHN A
IPC: B01J35/10
Filed: 1991-10-29
Abstract: In a process for the hydrogenation of nitrogen-containing hydrocarbons in a hydrocarbon feedstock, the feedstock is contacted at a temperature between 302 °C and 413 °C and a pressure between 40 bar and 168 bar in the presence of added hydrogen with a first catalyst bed containing a hydrotreating catalyst containing nickel, tungsten and optionally phosphorous supported on an alumina support, and, after contact with the first catalyst bed, the hydrogen and feedstock without modification, is passed from the first catalyst bed to a second catalyst bed where it is contacted at a temperature between 302 °C and 413 °C and a pressure between 40 bar and 168 bar with a hydrotreating catalyst containing nickel, molybdenum and optionally phosphorous supported on an alumina support.
Patent CA-2054920-A1 (CA)
Title: Plant for the production of molten metals
Inventor: PIRKLBAUER WILFRIED
IPC: F27D99/00
Filed: 1991-11-04
Abstract: ABSTRACT OF THE DISCLOSURE:    A  plant  for  the  production  of  molten  metals includes a melting vessel in whose wall burners and optionally  oxygen-containing-gas  feeding  ducts  are installed and on whose upper end a charging device as well as a gas evacuation duct receiving the offgases forming enter.    In order to enable the continuous charging of the melting vessel by avoiding any unintentional escape of gas from the melting vessel, both the gas evacuation duct and the charging means run into the upper end of the   furnace  shaft   laterally   and   approximately diametrically opposite each other. The charging means projects into a charging opening brushed over by a gas curtain and an intake chute for charging material is provided  below  the  charging  opening  in  a  manner directed towards the center of the furnace shaft. The intake chute  forms  a projection  protruding  inwardly like a nose relative to the wall of the furnace shaft and followed by a wall section inclined relative to the lower end region of the furnace shaft and passing over into the wall of the furnace shaft.
Patent CA-2056134-A1 (CA)
Title: Hydraulic control unit for prosthetic leg
Inventor: ADAMS THOMAS C
IPC: A61F2/50
Filed: 1991-11-25
Abstract: A prosthetic leg (10) has a pivotal knee joint (18) and a hydraulic fluid control unit (20) connected to provide variable forces which dampen flexion and extension of the knee and also bias the leg to its extended position. The unit includes an aluminum housing (22) lined with an axially adjustable sleeve (48) and control bushing (55) defining a cylindrical chamber (85) which receives a piston (70) mounted on a tubular piston rod (28). The housing and chamber receive hydraulic fluid or oil which flows during movement of the piston through fluid control ports (60), channels (62) and adjustable gaps (96, 98) defined by t he sleeve and bushing for damping the movement of the rod. The piston rod encloses a gas filled flexible bladder (140) which forms an oil accumulator during inward movement of the piston rod and also produces variable forces for moving the piston rod outwardly to its extended position. The housing confines a gap defining ring (97) which compensates for changes in oil viscosity with heat.
Patent CA-2056198-A1 (CA)
Title: Linearizing non-linear analog-to-digital process and circuit
Inventor: PATEL CHANDRAKANT B
IPC: H03M1/10
Filed: 1991-11-26
Abstract: A circuit for linearizing an analog-to-digital output with an analog signal V i, transmitted by an input circuit is applied to an input port of an analog-to-digital converter controlled by a sampling signal V s, to provide digital data V d on an "N" bit data bus. An analog-to-digital linearizing memory storing a look-up table of digital values, is coupled to a bus to receive the digital data V d, and to respond to the digital data V d by providing true linear digital values from the look-up table to a digital data processing system via an "N" bit data bus. A microprocessor is temporarily coupled between the output port of a converter and the input port of a memory via a bus, to serve as a switch between the bus and a programming memory containing a table of true linear digital values V t. A known test signal is applied to an input circuit, and true linear digital values V t stored in a programming memory, are then read into a linearizing memory to provide an accurate and reliable relation to a characteristic such as the amplitude of each step of the known test signal over the entire range of the known test signal.
Patent CA-2056837-A1 (CA)
Inventor: PRONOVOST NORMAND
IPC: E01H5/08
Filed: 1991-12-03
Abstract: A  pair  of  road-sliding  skates  for  mounting onto a front-loaded,  snowplow,  automotive  vehicle  are  provided,  to prevent damage  to the  structural integrity  of the vehicle when rolling on a high-crowned  road, yet  enabling  unhampered snow-blowing operation  of the snowplow in high snow banks. The skates are mounted rearwardly of the  front  bucket side  walls  of the vehicle,  being  substantially  inwardly  offset  relative to the vertical  plane  of  the  corresponding  side  walls,  yet  being forwardly positioned  relative to  the front  leading edge of the recessed bucket flooring.  Each skate position is  adjusted about a horizontal, fore and aft axis as well as in elevation.
Patent CA-2057236-A1 (CA)
Title: Sunflower plants having a high frequency of regenerability of fertile plants from hypocotyl explants and regenerability from isolated protoplasts and method of using same
Inventor: GARNAAT CARL W
IPC: A01H5/10
Filed: 1991-12-06
Abstract: Sunflower Plants Having a High Frequency of Regenerability of Fertile Plants from Hypocotyl Explants and Regenerability from Isolated Protoplasts and Method of Using Same Abstract of the Disclosure A sunflower variety designated PTO24 has been found to have a very high capability of regenerating fertile plants from single protoplasts.  A methof of using said variety to regenerate fertile sunflower plants and to impart the regenerative trait to other, non-regenerating varieties is also disclosed.
Patent CA-2059285-A1 (CA)
Title: Ear protector
Inventor: WIERIKS PETER J
IPC: A61F11/14
Filed: 1990-06-11
Abstract: The invention relates to an ear protector comprising an ear pad (2) and an ear shell (1) to which a bracket (15) is mounted for connecting two ear protectors with each other, there being interposed between the ear pad and the shell one or more damping layers (4, 5, 6) of plastic. According to the invention between the ear pad (1) and the ear shell (2) a diaphragm (3) is interposed on opposite sides of which at least one insert layer (5, 6) may be provided.
Patent CA-2060179-A1 (CA)
Title: Method and apparatus for cleaning the annulus formed by concentric pipes
Inventor: TITMAS JAMES A
IPC: B08B9/053
Filed: 1991-05-30
Abstract: An apparatus for cleaning an annulus (13) formed between two generally concentric pipes (11, 12) includes a cleaning head (14) carried by feed tubes (15, 16) which position the head (14) at selected vertical positions within the annulus (13). The feed tubes (15, 16) carry fluid under pressure to the head (14). A valve (40) controls which of the feed tubes (15, 16) is receiving fluid under pressure. When valve (40) provides fluid through the tube (16), fluid is emitted through nozzles (18, 22, 25) in the head (14) to move the head (14) in one direction around the annulus (13) and clean the annulus (13). When valve (40) alternatingly provides fluid through the tube (15), fluid is emitted through nozzles (31, 32, 33) in the head (14) to move the head (14) in an opposite direction around the annulus (13). The head (14) may be simultaneously moved vertically within the annulus (13).
Patent CA-2060442-A1 (CA)
Inventor: MAURO JAMES J
IPC: B29B17/04
Filed: 1992-01-31
Abstract: The  present   invention  relates  to  a  method  for recycling   the  water  soluble   resin  from  the  polymer suspension  wherein  dissolving the  core  made  of  water soluble  resin  with  deionized  water  or  some  solution, concentrating  the  resin  by  separating  water  from  the polymer  suspension,  drying   the  concentrated  resin  by completely  removing  the   remained  moisture  therein  to produce dried resin, and crushing and pelletizing the dried resin to make  pellet shaped resin,  thereby the  recovered resin  has the same physical or chemical characteristics as that of virgin resin and can be reused for being mixed with virgin resin.
Patent CA-2060764-A1 (CA)
Title: Packaging
Inventor: VAN WYK JOHANNES L
IPC: B65D65/22
Filed: 1992-02-06
Abstract: ABSTRACT The invention relates to the provision of a packaging material of particular butnot exclusive use for produce.  The material is comprised of a number of slats joined together by a flexible linkage such as a tape.
Patent CA-2061363-A1 (CA)
Title: Method of treating type i diabetes
Inventor: LAFFERTY KEVIN J
IPC: A61K31/535
Filed: 1992-02-17
Abstract: ABSTRACT           Provided is a method for treating Type I diabetes in mammals, and novel formulations suitable therefor, utilizing certain aryl-substituted rhodanine derivatives.
Patent CA-2062557-A1 (CA)
Title: Liquid dispenser
Inventor: KAUFMAN JOHN G
IPC: B67D1/00
Filed: 1992-03-09
Abstract: ABSTRACT OF THE DISCLOSURE        A  dispenser is  provided  for  liquids,  the  dispenser having  a  container  and  an  outlet  at  a  predetermined  first level.   The  pressure  in  the  container  can be  varied  and  a reservoir  receives  liquid  from  the  outlet.   A  discharge passageway extends upwardly from the first level and terminates at a discharge opening at a  second  level,  and an air  relief opening is provided above the first level.  The relief opening is no lower than the second level so that liquid displaced from the container flows into the reservoir and out of the passageway while air is trapped in the reservoir above the first level.          Consequently any gradual increase in temperature will cause air from  the  reservoir  to  be  displaced  through  the  air  relief opening to minimize the risk of temperature driven dispensing.          The passageway is defined by the combination of a cup-shaped base and a sleeve within the base.