baber/WOPTO huggingface dataset:
Patent CA-1292551-C (CA)
Title: Optical switch
Inventor: CLOONAN THOMAS J
IPC: H04B10/27
Filed: 1988-11-29
Granted: 1991-11-26
Abstract: AN OPTICAL SWITCH Abstract An optical switch (100) is disclosed for switching spatially-separated complementary optical signals from a row of a two-dimensional input storage array (132) to a selected row of a two-dimensional output storage array (133). The switch includes an input system (101) for converting temporally-separated information represented by a serial bit stream of complementary optical signals into a spatially-separated format for storage in the input array. An output system 105 is also included for converting the switched, spatially-separated information in the output array into a temporally-separated format for serial transmission on plurality of optical output fiber pairs (160(1)-160(N)). The input and output systems enable the switch to perform both time- and space-division switching with only a single stage of switching. A distributor system (103), also included in the switch, spatially distributes the optical signal pairs from a row of the input array over the entire output array for selective storage of the information represented by the signals in one or more rows of the output array.
Patent CA-1294061-C (CA)
Title: Process for fabricating self-aligned silicide lightly doped drain mos devices
Inventor: MA DI
IPC: H01L21/033
Filed: 1989-01-04
Granted: 1992-01-07
Abstract: ABSTRACT     In a method for fabricating an MOS structure, in accordance with one embodiment, a layer of material that serves as an etching stop during the side wall spacer etch, is inserted between the silicon substrate and the side wall spacer.  In another embodiment of the invention, after establishing differential layer thicknesses on the source/drain surface, the side wall spacer is completely removed and light and heavy ion implantation steps are performed sequentially with one single lithographic step.  In a further embodiment of the invention, after the self-aligned silicide is formed, the side wall spacer is removed, and light and heavy ion implantation steps are sequentially performed.
Patent CA-1305916-C (CA)
Title: Multipurpose structure
Inventor: GOBLE ROWLAND H
IPC: A63B17/00
Filed: 1989-01-10
Granted: 1992-08-04
Abstract: MULTIPURPOSE STRUCTURE            Abstract of the Disclosure A multipurpose structure apparatus  includes a frame and a roof supported on the frame.  A swing is movably supported to the roof in one position and is held adjacent the roof in a raised second position.          A table and bench section are stored on the structure and attached to the frame to form a table and bench structure with the frame beneath the swing.   The structure also includes brackets for attaching a steel pipe across frame members for supporting one or more see-saw boards and a plurality of pivoting frame members can be held with chains for supporting boards for use as seats or plant holders.   The structure also provides for a pair of pivoting ladder members pivoting from the roof of the structure in a spaced apart relationship.  The spaced ladder members can be pivoted to a position adjacent the roof and attached thereto for storage when not in use and can have a board member connected therebetween to form a rocking seat when in an operative position.   The ladder members may also have individual seats attached thereto with attaching members on one portion with chains holding the other portion for rocking with the swinging of the ladder members.
Patent CA-1313075-C (CA)
Title: Optical fiber connector assemblies and methods of making the assemblies
Inventor: BOOTH BRUCE L
IPC: G02B6/30
Filed: 1989-01-12
Granted: 1993-01-26
Abstract: OPTICAL FIBER CONNECTOR ASSEMBLIES         AND METHODS OF MAKING THE ASSEMBLIES            ABSTRACT OF THE DISCLOSURE         Methods of making assemblies and assemblies for interconnecting optical fibers and use in inte-grated optical systems.  The optical fiber connector assemblies include a pedestal having a step support-ing an optical waveguide device having a buried waveguide.  End portions of the step support means for receiving cores and cladding of optical fibers with the optical axes of the cores in alignment with the optical axis or axes of the waveguide.
Patent CA-1328545-C (CA)
Inventor: DUMICAN BARRY L
IPC: A61L27/50
Filed: 1989-03-20
Granted: 1994-04-19
Abstract: PROSTHETIC TUBULAR ARTICLE The invention provides a quadricomponent tubular article useful in prosthetic surgery having a plurality of fibers manufactured from at least two different absorbable and two different nonabsorbable polymers wherein at least one of the nonabsorbable polymers is selected from the group consisting of a poly(C2-C10 alkylene terephthalate), poly(C2-C6 alkylene), polyamlde, polyurethane, and polybutester.
Patent CA-1341247-C (CA)
Inventor: YAHIRO KAZUHIRO
IPC: C21D9/573
Filed: 1989-06-20
Granted: 2001-06-05
Abstract: In cooling a steel through cooling zones, the temperature of the steel is estimated by taking the temporal development of the steel due to the transformation of the same (the change in the amount of heat production of the steel produced upon the transformation of the same in response to the temporal change) into consideration to determine the quantity of a coolant, for thereby controlling the steel temperature to a target one at a predetermined position on a line or at a predetermined time.
Patent CA-1341080-C (CA)
Title: Polymeric biomaterial films
Inventor: VAINIONPAA SEPPO
IPC: A61F2/02
Filed: 1989-06-21
Granted: 2000-08-08
Abstract: This invention describes absorbable and/or soluble nonporous or porous polymeric films which have been reinforced with at least partially absorbable and/or soluble oriented structural elements with oriented molecular chains, crystalline lamellae or filaments or fibers or with structures which have been constructed of fibers. The films of this invention are applied either to join tissues or their parts to each other or to separate them from each other such as specially to protect controlled growth of periodontal ligament and/or cementum tissue.
Patent CA-1338504-C (CA)
Title: Filter medium for cake-forming filtration processes
Inventor: MUELLER HANS-RUDOLF
IPC: B01D39/14
Filed: 1989-08-02
Granted: 1996-08-06
Abstract: A filter medium for cake-forming filtration processes is described, which is characterized in that a filter membrane is embedded on either side in a fabric structure, which assumes a mechanical protective function.
Patent CA-1333206-C (CA)
Inventor: WILLIS CARL L
IPC: C08F8/00
Filed: 1989-08-30
Granted: 1994-11-22
Abstract: A process for producing a hydrogenated and acidic functional-ized polymer from a polymer initially containing either ethylenic unsaturation or both aromatic and ethylenic unsaturation comprising the steps of: (a)  incorporating one or more precursors of an acidic functional group into the starting polymer; (b)  hydrogenating the product from step (a) so as to convert at least a portion of the ethylenic unsaturation initially contained in said polymer; (c)  converting at least a portion of the precursors incorporated in the hydrogenated polymer from step (b) to the corresponding acidic functional group; and (d)  recovering a product containing acidic functionality which is at least partially hydrogenated.
Patent CA-1328802-C (CA)
Inventor: OVERBERGH NOEL M M
IPC: B32B3/28
Filed: 1991-09-23
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE         A heat-recoverable article suitable for enclosing a telecommunications cable splice comprises a recoverable fabric cover and a strengthening layer laminated to a sur-face of the fabric cover.
Patent CA-1337768-C (CA)
Inventor: MASAKI MITSUO
IPC: C07D295/21
Filed: 1993-10-26
Granted: 1995-12-19
Abstract: A piperazine derivative having the formula:       wherein, A1 represents a phenyl, p-benzoquinonyl or cumarinyl group which has at least one substituent selected from the group consisting of halogen, alkyl, fluoroalkyl, formyl, alkoxycarbonyl, acyl, hydroxy, alkoxy, acyloxy, glycosyloxy, amino, alkylamino, mercapto, alkylthio and nitro; B represents a single bond or a straight chain alkylene group containing 1-4 carbon atoms which may have at least one substituent selected from the group consisting of alkyl, aryl, aralkyl, hydroxy and oxo; R represents an atom or a group selected from the group consisting of hydrogen, alkali metal, alkaline earth metal, alkyl, cycloalkyl, aralkyl and aryl; and n is 2 or 3, or its pharmaceutically acceptable salt is diclosed.
Patent DK-164890-C (DK)
Inventor: FILHOL STUART JULIAN
IPC: A61C5/35
Filed: 1985-10-15
Granted: 1993-04-26
Abstract: A dental pin having a threaded portion 10 for insertion into a tooth is formed with a shank 11 which has portions 14, 15 inclined relative to the threaded portion and to each other. The threaded portion and shank are of integral construction and the shank is of zig-zag shape.A holder 21 for the pin can take several forms each with a bore 20 for receiving the shank releasably but in driving engagement with the holder.The holder may take a form suitable for use with a dental handpiece or for manual insertion of the pin. The invention also provides a holder 30, 31 with a ratchet mechanism 35, 41 for manual insertion of the pin.
Patent DK-163728-C (DK)
Inventor: BERGSTROEM ANDERS
IPC: B65G47/88
Filed: 1987-11-11
Granted: 1992-09-07
Abstract: Device for braking articles to be conveyed on a conveyor whereby providing a pair of tubes (2), (2) of predetermined length so formed as to maintain the flatness of braking surfaces (2a), (2a) that are inflatable end surfaces inflated in both directions of articles to be conveyed (C), interposing between themselves the traversing direction of conveyor (1) strip whose traversing surface is flat on the inside of a pair of side walls (7), (7) in a manner that articles to be conveyed (C) can pass on travelling conveyor (1) and that both ends of articles to be conveyed (C) are interposed with said rubber tubes (2), (2) which are inflated by being fed with air and by providing side guide members (5), (5) and (6), (6) to guide articles to be conveyed (C) by interposing said rubber tubes (2), (2) at a position in the proximity of the upper portion of each side wall (7), (7) and the lower portion of each rubber tube (2), (2).
Patent FI-73272-C (FI)
Inventor: NYLANDER ARTHUR
IPC: E01F9/04
Filed: 1982-01-14
Granted: 1987-09-10
Abstract: 1. Formation method for retro-reflective horizontal roadway marking, in which a marking product is applied on to the surface to be marked, characterised in that the surface of the said product is sprinkled before drying with a mixture of microspheres of glass treated for floatation and of microspheres of glass treated for adhesion to the marking product.
Patent FI-72871-C (FI)
Inventor: ROSE DAVID
IPC: C09B29/36
Filed: 1982-03-22
Granted: 1987-08-10
Abstract: This invention is directed to compositions of the developer-coupler type of the dyeing of hair, consisting essentially of substituted dihydroxypyridine compounds or salts thereof as coupling components and, as developer components, the conventional components used in oxidation dyes.
Patent FI-99194-C (FI)
Inventor: CZINNER ROBERT L
IPC: G06Q10/04
Filed: 1989-01-16
Granted: 1997-10-27
Abstract: This invention relates to a method and an apparatus for the cutting of dressed lumber to achieve the optimum value of cut pieces based upon the specific structural and surface defect characteristics of each board, as well as upon historical demand, business inventory and market factors. The invention includes the use of a Modulous of Elasticity test and photo-electric surface scanners in order to determine these specific structural and surface defect characteristics.
Patent FI-93995-C (FI)
Inventor: HANTMANN BERNHARD
IPC: G01N27/02
Filed: 1991-04-25
Granted: 1995-06-26
Abstract: Process for controlling and/or distinguishing liquids used in the brewing industry. To distinguish water, rinsing water, different kinds of beer and various non-alcoholic drinks by means of technical measuring devices, a measuring instrument for controlling or distinguishing the conductivity of the relevant liquid by inductive measurement is used.
Patent NO-180680-C (NO)
Inventor: BALDWIN JOHN J
IPC: C07D495/20
Filed: 1991-04-11
Abstract: Thieno[2,3-b]thiopyran-2-sulfonamides and ring homologs with a hydrophilic substituted-alkyl group adjacent to the thiopyran sulfur are carbonic anhydrase inhibitors topically effective in lowering intramocular pressure.
Patent NO-180647-C (NO)
Inventor: BEST WALTER
IPC: D04H18/02
Filed: 1991-06-12
Abstract: A felt, in particular a paper machine felt for the press section of a paper machine, has at least one carrier web and at least one fibre web applied thereto and joined thereto. To ensure that such a felt has improved running properties in spite of adequate transverse stability and can be manufactured at considerably lower costs, the carrier web(s) (45, 50, 57, 58, 64, 71, 72) is or are each formed from at least one carrier web strip (46, 51, 52, 59, 60, 65, 66, 73, 74, 75), whose width is less than that of the carrier web(s) (45, 50, 57, 58, 64, 71, 72) and which is or are helically wound continuously, essentially in the direction of running of the felt (42, 47, 53, 61, 67) at right angles thereto. The manufacture is carried out in principle by the following process steps:  a) initially, a web of material is produced; b) at least one carrier web strip (46, 51, 52, 59, 60, 65, 66, 73, 74, 75), whose width is less than that of the finished felt (42, 47, 53, 61, 67), is fixed to the web of material;  c) the web of material is moved in the peripheral direction; d) the build-up of the first carrier web (45, 50, 57, 58, 64, 71, 72) and, if appropriate, further carrier webs (45, 50, 57, 58, 64, 71, 72) takes place by means of a relative motion between the particular carrier web strip (46, 51, 52, 59, 60, 65, 66, 73, 74, 75) and the part (41), already built up, of the felt (42, 47, 53, 61, 67), helically at right angles to the direction of revolution of the web of material; e) each carrier web (45, 50, 57, 58, 64, 71, 72) is joined to at least one fibre web (43, 44, 48, 49, 54, 55, 56, 57, 62, 63, 68, 69, 79). <IMAGE>
Patent NO-178705-C (NO)
Inventor: CHAMBLEE WAYNE
IPC: B03D1/14
Filed: 1991-08-08
Abstract: The removal of sticky contaminants and/or ink particles during the production of recycled paper is accomplished utilizing a hydrocyclone (31) froth flotation process. Paper having sticky contaminants from labels, tapes, hot melts, and other tacky substances, and/or print, is reduced to a finely comminuted liquid solids suspension of about 1-4% consistency (preferably over 2%). The suspension is introduced into a first end (44) of a vortex (41) in a hydrocyclone (31), and the air is sparged radially inwardly into the suspension vortex by passing it through a porous inner wall (47) of the hydrocyclone. Lighter weight sticky contaminants move to the center of the hydrocyclone, facilitated by the radially inward movement of the sparging air, and hydrophobic sticky contaminants and/or ink particles attach to the air bubbles and form a foam. The foam and lightweight sticky contaminants are removed from the first end (at 33, thru 51) of the vortex, while the pulp which has had sticky contaminants and/or ink removed therefrom is discharged from the second end of the vortex (at 32), opposite the first end. A plurality of vertical axis hydrocyclones (21) may be connected together in series, with a plurality of the series connected in parallel, to provide the most effective treatment. Removal of sticky contaminants can be practiced prior to or simultaneously with deinking (Figure 3).   <IMAGE>
Patent NO-180196-C (NO)
Inventor: FLYNN GARY ALAN
IPC: C07K5/06
Filed: 1991-12-20
Abstract: The present invention relates to compounds of the formula <CHEM>  wherein A is methylene, oxygen, sulfur or N-B wherein B is R1 or COR2 wherein R1 is hydrogen, a C1-C4 alkyl or an Ar-Z-group wherein Ar is aryl and Z is a C0-C4 alkyl and R2 is a -CF3, a C1-C10 alkyl or an Ar-Z group;     R is hydrogen or a C1-C4 alkyl; and X and Y are each independently hydrogen, nitro or amino, with the proviso that when X is nitro or amino, Y must be hydrogen, and when Y is nitro or amino, X must be hydrogen; and  pharmaceutically acceptable salts thereof, which are inhibitors of Angiotensin Converting Enzyme.
Patent AU-744323-C (AU)
Title: Solution polymerization of high molecular weight poly(phosphoesters) in toluene
Inventor: ZHAO ZHONG
IPC: C08G79/04
Filed: 1998-06-23
Granted: 2002-08-29
Abstract: A process for making a high molecular weight poly(phosphoester) composition comprising: (i) a biologically active substance; and (ii) a poly(phosphoester) with the recurring monomeric units: wherein X is -O- or -NR''-, where R'' is H or alkyl; L is a divalent organic moiety, with the proviso that L cannot have the formula R' is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic, or heterocycloxy; and n is from about 25 to 2000, is described. The process comprises the steps of: (a) substantially dissolving p moles of a di-XH compound in a solvent comprising more than 75% toluene at a first temperature between about -75 DEG  C. and +60 DEG  C. to form a reaction mixture; (b) while maintaining the reaction mixture at the first temperature, adding q moles, where p APPROX q, of a phosphorodihalo compound; (c) gradually increasing said first temperature at a rate of less than about 1.5 DEG  C. per minute as necessary to achieve a second temperature between about 0 DEG  C. and 150 DEG  C., and mixing the reaction mixture at the second temperature to form the polymer of formula I; and (d) isolating the polymer of formula I. (e) incorporating the biologically active substance into the polymer of formula I.
Patent CA-2003891-C (CA)
Inventor: BRAEMERT PETER
IPC: B61D17/22
Filed: 1989-11-24
Granted: 1998-09-15
Abstract: The crossover forming an end portion of a railcar, providing an interconnection between a pair of cars when coupled to the adjoining crossover, comprises a protective bellows forming the crossover surround,  and a platform portion,  for connecting with a similar construction on the adjoining car.     The crossover includes a supporting frame portion located adjacent the railcar buffers.   A mechanical linkage interconnects the buffers with respective portions of the crossover, such that, on compression of a respective buffer against its spring, as when traversing a sharp curve, the related portion of the crossover is retracted, to minimize possible damage to the crossover frame due to relative transverse shifting of the cars, with consequent lateral displacement of the buffers.  A further provision includes deflection blocks,  positioned to displace the respective crossover frame portion out of harms way, in the event of the incursion of a car bumper into the vicinity of the crossover frame.
Patent CA-2012374-C (CA)
Title: Ultrasonic crack sizing method
Inventor: LATIMER PAUL J
IPC: G01N29/07
Filed: 1990-03-16
Granted: 1994-03-22
Abstract: ABSTRACT OF THE DISCLOSURE        An  ultrasonic  tip  diffraction   technique  for determining  the  depth  of  a  surface-opening  crack  is disclosed.  Longitudinal ultrasonic waves are  transmitted parallel  to and along  the  crack  and measurement  of  the time of travel of the waves diffracted at the tip of the crack is employed to determine the depth of the crack.
Patent CA-2034755-C (CA)
Title: Two stage automatic shut off valve
Inventor: JOHNSON BRUCE
IPC: B65D90/26
Filed: 1991-01-22
Granted: 1994-10-25
Abstract: TWO STAGE AUTOMATIC SHUT OFF VALVE      ABSTRACT          A shut off valve assembly for preventing overfilling of an underground fuel storage tank or other storage tanks where the incoming flow is not metered, utilizes a two stage valve closure, the first stage closure signaling the tank is nearly filled to capacity and the second stage closure subsequently completely stopping flow into the tank.
Patent CA-2038088-C (CA)
Title: Link and bearing for rotary coupling
Inventor: STAPLES FRANK E
IPC: F16C33/20
Filed: 1991-03-11
Granted: 2002-06-11
Abstract: A link for use in a link-type rotary coupling. The link has an elastomeric bearing which incorporates a pair of cavities that provide discontinuities for preventing the transfer of tensile stresses in the elastomeric layers when the link is tensioned axially while permitting the elastomeric layers to accept compressive stresses when the link is compressed axially. The resulting link is durable.
Patent CA-2051602-C (CA)
Title: Method and apparatus for generating models of spoken words based on a small number of utterances
Inventor: BROWN PETER FITZHUGH
IPC: G10L15/06
Filed: 1991-09-17
Granted: 1996-03-05
Abstract: A method and apparatus for modeling words based on match scores representing (a) the closeness of a match between probabilistic word models and the acoustic features of at least two utterances,  and (b) the closeness of a match between word models and the spelling of the word.   A match score is calculated for a selection set of one or more probabilistic word models.  A match score is also calculated   for   an   expansion   set   comprising   the probabilistic word models in the selection set and one probabilistic word model from a candidate set.   If the expansion  set match  score  improves  the  selection  set match score by a selected nonzero threshold value, the word is modelled with the word models in the expansion set.  If the expansion set match score does not improve the selection set match score by the selected nonzero threshold value, the word is modelled with the words in the selection set.
Patent CA-2053919-C (CA)
Title: Valves
Inventor: EDWARDS JEFFREY CHARLES
IPC: E21B23/00
Filed: 1990-04-17
Granted: 2001-02-20
Abstract: Once a new oil well has been drilled and cased, a test string is set in place for the purpose of evaluating the production potential of the chosen formation. One way of controlling the operation of the various tools included in the test string is by changes in the pressure differential between the tubing and the annular space which surrounds it in the well, and an essential component of the test string to be controlled in this way is the sub-surface; control valve, which may conveniently be a ball valve. However, a problem is experienced where the pressure of fluid acting on the upstream side of the ball is very high; the frictional forces caused by the ball being pressed up against the seating cm its downstream side may be so high as to make the ball stick. The invention seeks to avoid this by enabling the actuating force to be applied to the ball, via a differential thread force multiplier. Another problem experienced when employing a biased-closed valve is that the annulus pressure; needed to keep the valve open may have to be maintained for extended periods. The invention solves this one by providing latch means whereby the valve actuating sleeve may be retained in the valve-open position even when the applied annulus pressure is removed, a first pulse of applied annulus pressure causing the valve to open and then, as the pressure is removed, become latched in the open state, and thereafter a second pulse of applied annulus pressure unlatching the valve and allowing it to close once the pulse has ended.
Patent CA-2055147-C (CA)
Inventor: AHMED OSMAN
IPC: E06B7/02
Filed: 1991-11-07
Granted: 1999-11-02
Abstract: Fume hood controller apparatus includes a computing means, together with associated memory, which can be configured fox horizontally and/or vertically moveable sash doors by inputting the necessary dimensions of the sash doors and other structural features, such as the upper lip height, frame widths and the like. The apparatus rapidly calculates the size of the uncovered area of the fume hood as a function of the position of the sash doors.
Patent CA-2063990-C (CA)
Title: Flame retardant polymer formulation
Inventor: CHAPLIN DOMINIC
IPC: C08L67/06
Filed: 1990-07-20
Granted: 2001-09-18
Abstract: The invention describes a formulation for halogenated polymers containing a synergistic mix of flame retardants compris-ing 10-400 phr of an aluminium or magnesium hydroxide and 0.5-80 phr of tin oxide or a metal stannate or hydroxystannate.