baber/WOPTO huggingface dataset:
Patent CA-1289233-C (CA)
Title: Avalanche photodiode
Inventor: FORREST STEPHEN R
IPC: H01L31/107
Filed: 1989-01-04
Granted: 1991-09-17
Abstract: AVALANCHE PHOTODIODE            Abstract The disclosed invention as directed to a semiconductor material avalanche photodiode of a separate multiplication and absorption region heterostructure design (SAM-APD).  The improved SAM-APD of this  invention is characterized by a plurality of floating guard rings 54,  56 and 58 which are separate about a central region 50 and doped in the opposite high concentration from that of the multiplication region 46a in which they are positioned.  These rings float in the sense that they have no contact with the metalized p-contact 52 of the photodiode; and, therefore,  no direct contact with the current source.   This structure results in an enhanced ava-lanche effect in the central region with limited edge break-down undesirable consequences.   In addition to this struc-ture,  an alternative embodiment suggest the use of both a floating ring and thin slab 48 before the central region 50, of a dimension slightly smaller than the smaller region and concentric with it to achieve an optimized central avalanche breakdown with reduced edge breakdown of the electric fields formed during reversed biasing of the APD (avalanche photo-diode).
Patent CA-1328057-C (CA)
Inventor: HASELKORN MICHAEL H
IPC: C04B41/52
Filed: 1989-01-30
Granted: 1994-03-29
Abstract: ABSTRACT OF DISCLOSURE        The invention deals with an oxidation protection system for an inhibited carbon substrate which comprises a friable layer applied to the carbon substrate surface. The friable layer is then coated with a dense oxidation resistant outer layer.
Patent CA-1332921-C (CA)
Title: Process of labeling specific chromosomes using recombinant repetitive dna
Inventor: MOYZIS ROBERT K
IPC: C12Q1/6876
Filed: 1989-02-09
Granted: 1994-11-08
Abstract: A  method  is provided  for   determining   specific nucleotide sequences useful in forming a probe which can identify specific chromosomes, preferably through in situ hybridization within the cell itself.   In one embodiment, chromosome  preferential  nucleotide  sequences  are  first determined from a library of recombinant DNA clones having families  of  repetitive  sequences.   Library  clones  are identified  with  a  low  homology  with  a  sequence  of repetitive  DNA  families  to  which  the  first  clones respectively  belong  and  variant  sequences   are  then identified  by  selecting  clones  having  a  pattern  of hybridization   with   genomic   DNA   dissimilar   to   the hybridization  pattern shown by  the  respective  families. In another embodiment, variant sequences are selected from a sequence of a known repetitive DNA family.  The selected variant  sequence  is  classified  as  chromosome  specific, chromosome   preferential,   or   chromosome   nonspecific. Sequences which are classified as chromosome preferential are further sequenced and regions are identified having a low  homology  with  other  regions  of  the  chromosome preferential  sequence  or  with  known  sequences  of  other family members and consensus sequences of the repetitive DNA  families  for  the  chromosome  preferential  sequences. The selected low homology regions are then hybridized with chromosomes  to determine  those  low  homology  regions hybridized  with  a  specific  chromosome  under  normal stringency conditions.  In accordance with the invention, oligomers are provided which are useful in forming a probe for   specific  chromosome  identification  under   normal stringency conditions.
Patent CA-1315484-C (CA)
Title: High flexibility protective glove
Inventor: GAZZANO RICK
IPC: A63B71/14
Filed: 1989-02-13
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE      A hockey glove (40) has a set of knuckle protective pads  (42)  which  follow  the  position  of  the  player's knuckles beneath the pads  (42).   Break  lines  (44)  are arcuate  in  shape  and  incline  rearwardly  toward  wrist portion  (46)  of the glove  (40)  from base  (48)  of thumb portion (50) of the glove (40).  Break lines (52) extend between the break lines (44) and are inclined at an acute angle relative to longitudinal direction (54) of the glove (40).  Break lines  (56)  between protective pads  (57)  on fingers  (58)  of  the  glove correspond to the different positions of middle joints on the player's hand,  i.e., they are not positioned in a  straight line.  The rear break line  (441  separates the protective pads  (42)  from protective pad  (43)  for the back of the wearer's hand. The construction of the protective pads (42) and (57) and the break lines (44, 52 and 56) on the glove 40 allows the player to grasp hockey stick (20) in a natural grip.
Patent CA-1324850-C (CA)
Inventor: TAKIZAWA MINORU
IPC: C08F8/44
Filed: 1989-03-31
Granted: 1993-11-30
Abstract: ABSTRACT     A water swellable resin composition comprises a water swellable resin and a medium such as a plasti-cizer, solvent, resin or resin solution.  The resin is an alkali metal salt and/or hydrophilic amine salt of a copolymer of hydrophobic polymer chains having an .alpha.,.beta.-ethylenically-unsaturated group at end thereof and a monomer composed principally of (meth)acrylic acid.          The composition is useful as a sealing compound, waterproofing agent, water-holding agent, dew-preventing agent, water-penetration preventing masterials, sweat-absorbing material, sanitary napkin or the like.
Patent CA-1324496-C (CA)
Inventor: DELATORRE LEROY C
IPC: G01L9/00
Filed: 1989-04-10
Granted: 1993-11-23
Abstract: ABSTRACT    A sensor system utilizing a bourdon tube to generate a force as a function of pressure to deflect a diaphragm in a capacitor device where the diaphragm varies capaci-tance values of the capacitor device as a function of the applied force.  The capacitor device is an essentially integral circularly shaped construction of quartz material in which the diaphragm is attached to a tubular quartz member.  A metal member having a similar coefficient of temperature expansion to the coefficient of the quartz is used to couple the diaphragm to the bourdon tube.
Patent CA-1309840-C (CA)
Title: Process for desulfurization of sulfur dioxide-containing gas streams
Inventor: STOWE DONALD H JR
IPC: B01D53/50
Filed: 1989-04-27
Granted: 1992-11-10
Abstract: Abstract A process for desulfurizing sulfur dioxide-containing gases wherein the sulfur-containing gases are contacted with an aqueous  solution  of  magnesium  hydroxide  in  a  wet  scrubber, wherein magnesium sulfite and magnesium bisulfite are formed, a portion of spent scrubbing medium is subjected to oxidation to convert  the  magnesium  sulfite  and  the  magnesium  bisulfite therein to magnesium sulfate, the oxidized product is contacted with  a magnesium-containing  lime  slurry  to  obtain  magnesium hydroxide  and  calcium  sulfate,  calcium  sulfate  is  separated from  the  resulting  product  and  the  magnesium  hydroxide  is recycled to the scrubber.
Patent CA-1288615-C (CA)
Title: Variable camshaft timing system
Inventor: BUTTERFIELD ROGER P
IPC: F01L1/34
Filed: 1989-05-10
Granted: 1991-09-10
Abstract: VARIABLE CAMSHAFT TIMING SYSTEM             ABSTRACT OF THE DISCLOSURE         A phase shift device utilized for the camshaft spockets in a chain control device for an  engine having separate camshaft for intake and exhaust valves in an internal combustion engine. A device supporting one or a pair of idler sprockets is shiftable either pivotally or longitudinally to vary the chain path between a driving and a driven camshaft sprocket in such a way as to vary the phase of the driven sprocket relative to the driving sprocket. This device comprises a bracket which carries at least one idler sprocket and is either pivotally or longitudinally shiftable to vary the phase thus facilitating proper chain control.
Patent CA-1312939-C (CA)
Title: Laser
Inventor: BRIERLEY MICHAEL C
IPC: H01S3/17
Filed: 1989-05-18
Granted: 1993-01-19
Abstract: ABSTRACT                                   LASER   A 2.7µm laser comprises a single mode fluoro-zirconate optical fibre doped with 0.086 mole % Er3+.  C-W operation of the usually self-terminating lasing transition 4I11/2 to 4I13/2 is achieved by applying excitation energy of a suitable wavelength and intensify to elevate ions from the lower lasing level to maintain a population inversion between the upper and lower lasing levels during lasing.  The laser may be pumped at a single wavelength of about 785nm by a semiconductor laser.
Patent CA-1327852-C (CA)
Title: Pillow
Inventor: MAIN EWAN J
IPC: A47G9/10
Filed: 1989-05-19
Granted: 1994-03-15
Abstract: ABSTRACT           A pillow formed from a resilient foam material is provided.  The pillow is of unitary construction and includes  a  generally  concave  upper  surface  for supporting a user's head.   Two opposite sides of the pillow each have a generally ovate recess formed therein that extends along the length of the side.  The recesses define upper and lower ridges on each side of the pillow which are aligned when the pillow is not in use.   The recesses are adapted to receive the user's shoulder during use.  The upper surface of the pillow is provided with a plurality of spaced ridges formed thereon that extend diagonally across the upper surface.  The ridges extend across substantially the entire upper surface except at two substantially flat semi-circular regions. Each semi-circular region is located adjacent one of the two upper ridges and provides support along the jaw-line of the user.   It is preferred that one side of the pillow is raised with respect to the other side and that the  recess  formed  in the  one  side  is  of  larger dimensions than the recess provided in the other side to accommodate user's of different physical size.
Patent CA-1322631-C (CA)
Title: Fiber-treatment agent
Inventor: ONA ISAO
IPC: D06M15/643
Filed: 1989-05-24
Granted: 1993-10-05
Abstract: Abstract of the Disclosure A composition and method for treating fibers is based on an organopolysiloxane having at least  one cyclohexylamino- substituted hydrocarbon radical directly bonded to a silicon atom.  The composition and method provide non-yellowing fibers and a treatment agent that does not gel during use, such as when exposed to carbon dioxide and/or used to treat carbon fibers.
Patent CA-1310166-C (CA)
Title: Metal stud
Inventor: HOUSER JAMES L
IPC: E04B1/00
Filed: 1989-05-26
Granted: 1992-11-17
Abstract: ABSTRACT OF DISCLOSURE                       METAL STUD    A one-piece metal stud comprises a longitudinal web with generally centrally located punch outs forming alternately oriented bent tabs, a folded and hemmed front flange, and a back flange formed of alternately oriented bent tabs.  The bent tabs are folded into a lip of double thickness and extend back past the web in a single thick-ness.  The punch out tabs and the back flange tabs form channels therebetween on each side of the web for holding a separate wallboard panel in each channel.  A further wallboard panel or panels can be fastened to the front flange or to both the front flange and back flange tabs to complete formation of a double-wall or cavity wall construction.
Patent CA-1308011-C (CA)
Title: Method and apparatus for bonding laminar workpieces
Inventor: MEYER WERNER
IPC: B29C43/56
Filed: 1989-06-02
Granted: 1992-09-29
Abstract: Abstract of the Disclosures An apparatus for bonding laminar workpieces has a feed station, a heating and pressing station with two heating zones, and a delivery station with a cooling zone.  A lower conveyor belt is driven through the feed station and the heating and pressing station.  An upper conveyor belt is driven through the heating and pressing station, and is mounted a sufficient distance above the lower conveyor belt to carry the workpieces therebetween. Pressing rollers are mounted in the heating and pressing station for pressing the heated workpieces moving therethrough.  The adhesive between the laminations of the workpieces is heat-activated in the heating zones to bond the laminations of the workpieces.  The heated and pressed workpieces are then moved by conveyor belts through a cooling zone to resolidify the adhesive between the laminations of the workpieces.  A pair of suction nozzles, each having an elongated aperture, are each mounted adjacent to one side of the conveyor belts. The suction nozzles suck air from the space between the conveyor belts to introduce at least a partial vacuum therein, to facilitate the formation of uniform bonds between the adhesive and the laminations of the workpieces.
Patent CA-1326472-C (CA)
Inventor: FINK CAMERON L
IPC: B42F13/00
Filed: 1989-06-02
Granted: 1994-01-25
Abstract: ABSTRACT OF THE INVENTION          A structure for containing incorporation documents and a corporate seal embosser the structure including a top element of a selected width defining the top and an angled display wall for  carrying  a  sample  of  a  corporate  seal  to  identify  the contents of the structure, a fixed side wall dependent from the top structure and of  a  substantially selected width,  a  fixed side dependent from both the top and the angled display wall rectangular but for an angled edge shaped to meet the display wall a bottom hinged to the fixed side and of substantially the selected width, a lid hinged to the bottom for movement with the bottom into position in engagement with the fixed side wall and the top element, the lid being of a similar shape to that of the fixed side, a collapsable side wall hinged to the fixed side and of substantially the selected width for movement to meet the lid and the top element when the structure is closed, wall closure means  coupled  to  the collapsable  side  wall  and  to  the  top element to releasably retain this side wall when the structure is closed, and lid closure means coupled to the lid and to the top element to releaseably retain the lid when the structure is closed whereby incorporation documents can be contained when the structure is closed and made available by releasing the closure means and removing the lid and the collapsable side wall into the plane of the fixed side.
Patent CA-1324189-C (CA)
Title: Apparatus and process for cooling a plasma arc electrode
Inventor: SANDERS NICHOLAS A
IPC: B23K9/00
Filed: 1989-07-11
Granted: 1993-11-09
Abstract: Abstract of the Disclosure In a plasma arc torch, an electrode is movable axially into and out of electrical connection with an anode, typically a nozzle secured to one end of a torch body.  A flow of pressurized plasma gas is directed to a plasma chamber between the electrode and the nozzle, preferably through a replaceable swirl ring that closely surrounds and guides the electrode at a larger diameter shoulder portion of the electrode.  A gas flow passage, preferably a spiral passage machined on the outer side surface of the shoulder portion, diverts a portion of the gas flow from the plasma chamber to a region above the electrode where it is vented to atmosphere.  The passage is sufficiently constricted that a substantial pressure drop appears along the path, while at the same time allowing a sufficient flow to produce the desired cooling.  The revolutions of the spiral are preferably closely spaced to enhance the surface area of the electrode in a heat transfer relationship with the cooling gas flow.
Patent CA-1333906-C (CA)
Title: Cycloalkylthiazole derivatives
Inventor: FIELD GEORGE F
IPC: A61P11/08
Filed: 1989-07-13
Granted: 1995-01-10
Abstract: The compounds of the general formula   wherein R is hydrogen or lower alkyl, R1, R2, R3 and R4, independently, are hydrogen, lower alkyl, lower alkenyl, C3 6-cycloalkyl or a phenyl group, which is unsubstituted or substituted by up to 3 substituents independently selected from lower alkyl, lower alkoxy or halogen, or R1 and R2 taken together with the carbon atom, to which they are attached are a C2 5-alkylene group, which is unsubstituted or substituted by lower alkyl, and n is an integer of from 0 to 3, and, when R1 is different from R2 and/or R3 is different from R4, enantiomers, diastereomers and racemates thereof and, when R is hydrogen, salts thereof with pharmaceutically acceptable bases are useful as bronchopulmonary agents, for example, in the relief of asthma and allergic reactions.
Patent CA-1323419-C (CA)
Inventor: RAMMOS EMMANUEL
IPC: H01Q21/00
Filed: 1989-07-31
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE:         This invention relates to a planar antenna of the kind comprising feed lines disposed in a flat circuit and cooperating by hyperfrequency coupling with a metal ground plane pierced by apertures, the feed lines presenting a termination juxtaposed with each aperture, and a reflecting lower plate disposed at a distance of  approximately a quarter wavelength,  wherein the metal plate comprises a metal coating deposited on a dielectric substrate, the feed lines comprising microstrips disposed in channels which open into the apertures, and the array of apertures, channels and microstrips being produced on the dielectric substrate by single face printed circuit techniques.  The invention is applicable to antennas for reception of direct broadcasts from satellites.
Patent CA-1335343-C (CA)
Inventor: LANGLOIS GERARD
IPC: F02B7/06
Filed: 1989-08-11
Granted: 1995-04-25
Abstract: There  is  disclosed  an  electronic  dual-fuel injection system for an internal combustion engine having a cylinder block with driving cylinders.   The system has an  intake manifold which is  connected  to  the driving cylinders to feed fuel mixtures to the cylinders and an air supply assembly including a shuttle-valve body con-nected to the manifold for feeding air into it.   A high grade  fuel  supply assembly,  which  includes  an  injector mounted on the output section of the air supply assembly, serves for feeding high grade fuel to the manifold.   A similar but  low  grade  fuel  assembly,  which  includes  a plurality of injectors each of which is mounted on the manifold,  serves  for  feeding low grade  fuel  to one of the driving cylinders.  The injection system also includes a computer, connected to the two fuel supply assemblies, and temperature  sensors  connected  to  the  computer  and to  the cylinder block to measure its temperature.   The computer is programmed first to cause actuation of  the high grade  fuel  injector  for  starting and warming  the engine up to a predetermined temperature as measured by the temperature sensor and corresponding to the combustion temperature of the low grade fuel.  It is also programmed to cause  actuation of  the  low grade  fuel injectors  to supply low grade fuel to the cylinders after the   com-bustion  temperature  has  been  reached  and,  thereafter, cut-off the high grade fuel supply system.
Patent CA-1338477-C (CA)
Title: Load control system
Inventor: KUSHIRO NORIYUKI
IPC: H02J3/14
Filed: 1989-09-13
Granted: 1996-07-23
Abstract: An improved luminaire load control system for handling control signals as by converting them into power line carrier communication signals which are transmitted through branch power lines to terminal control units without causing any significant interference to power line installation. the conversion of the control signals is done respectively at a plurality of gate way units mounted on each branch power line and each gate way unit further includes memory unit for storing the information regarding to the connecting status of the terminal unit for sending back the stored information to a central control unit upon receipt of a send back command there-from. In a specific embodiment of the invention, a plurality of gate way units are mutually connected with specific signal transmission lines for providing the reciprocity control of luminaire loads by installing a plurality of operation command input terminals in each of the branch power line, whereby the control signal is transmitted through the specific signal transmission lines.
Patent CA-1316733-C (CA)
Title: Composite ceramic armor and method for making same
Inventor: PIVITT ALLEN F
IPC: F41H5/04
Filed: 1989-09-15
Granted: 1993-04-27
Abstract: COMPOSITE CERAMIC ARMOR AND METHOD FOR MAKING SAME                        ABSTRACT         Composite ceramic armor (10) and a method for making  the  armor  are  disclosed  as  incorporating  a plurality of plate-shaped ceramic tiles (12) and cloth (18) wrapped around each tile over each surface (14) and side (16) thereof with a synthetic resin matrix (20) permeating the cloth to encapsulate the tiles such that the resin matrix defines oppositely facing surfaces (22) and a plurality of sides (24) from which the ceramic tiles are spaced by the cloth.   The tiles  (12)  are preferably rectangular and the cloth  (18)  preferably includes a pair of strips (26,28) wrapped around each tile in perpendicular directions to each other.  Woven cloth is preferably utilized and is most preferably made from glass fibers or polyamide plastic fibers such as Kevlar.
Patent CA-1338593-C (CA)
Inventor: PATON CHARLES RICHARD
IPC: H01H71/00
Filed: 1994-12-16
Granted: 1996-09-10
Abstract: A laminated contact assembly is formed from a number of individual contact assemblies. Each in-dividual contact assembly includes a contact arm por-tion, which carries a movable main or arcing contact and a stationary conductor portion. A flexible shunt is used to connect the contact arm portion to the stationary conductor portion. Intermediate individu-al contact assemblies are provided with T-shaped slots for receiving square-headed fasteners. These square-headed fasteners are captured by adjacent as-semblies once the laminated contact assembly is com-plete. By providing such an arrangement, the need to drill and tap holes in the base of the laminated con-tact arm assembly is obviated. Since all of the in-dividual contact arm assemblies are fastened to-gether, the possibility of the square-headed fasten-ers disposed in T-shaped slots in intermediate indi-vidual contact arm assemblies is greatly reduced. The flexible shunt is wound from a continuous strip of an electrical conductor and formed into a V-shaped member having extending leg portions which generate magnetic repulsion forces during overcurrent condi-tions. By utilizing a form wound shunt the cost of the contact arm assembly can be greatly reduced.
Patent DK-163046-C (DK)
Inventor: OEHLENSCHLAEGER ULLA
IPC: B65D77/20
Filed: 1988-08-17
Granted: 1992-06-15
Abstract: A method of disposing a container (13) of plastic material (7) to be tightly sealed by a foil or film (2). In an area for the intended attachment of the film or foil, the fixing area, the opening part of the container has a layer (11) of plastic material forming an outer surface against which, while closing the container the film or foil rests during supply of energy to the fixing area. Before closing the container and, according to the invention, oriented plastic material included in the fixing area and defined by said outer surface is heated to at least a temperature at which the orientation of the material commences to be reduced and the material is maintained at the increased temperature until the material is converted to substantially non-oriented material.