baber/WOPTO huggingface dataset:
Patent CA-2158636-A1 (CA)
Title: Fast Cure and Pre-Cure Resistant Cross-Linked Phenol-Formaldehyde Adhesives and Methods of Making Same
Inventor: CALVE LOUIS R
IPC: C09J197/00
Filed: 1991-05-13
Abstract: Fast cure and "pre-cure" resistant thermosetting adhesives and methods for their production useful for binding lignocellulosic materials together, are disclosed. A fast curing adhesive is obtained by cross-linking binary phenol-formaldehyde consisting of high average molecular weight phenol-formaldehyde (PF) resin and low average molecular weight PF resin with lignin.  A "pre-cure" resistant adhesive is obtained by cross-linking a PF resin, such as binary phenol-formaldehyde, with a lignin with the addition of ammonia preferably in the form of an ammonium salt.  The lignin may be obtained from different wood pulping waste materials including that recovered from the sulphite, kraft, organic extract or steam hydrolysed wood pulping processes.  The adhesive can be produced as an aqueous solution or dispersion, and used in either a basic or acidic environment.  The quick setting and "pre-cure" resistant adhesives are inexpensive to produce and both display improved adhesion characteristics when compared with existing adhesives prepared from wood waste products.  The adhesives also compare advantageously to a variety of existing commercial phenolic resin presently being used in the manufacture of wood composite products such as waferboards.  These adhesives are capable of being spray dried more easily and produce higher yields, when compared with existing wood waste products which have been cross-linked with commercial PF resin or to a variety of existing commercial phenolic resins.
Patent CA-2160075-A1 (CA)
Title: Wall frame system
Inventor: AGAR ROBERT S
IPC: E04C3/32
Filed: 1995-10-06
Abstract: A wall frame has C-shaped vertical studs each with a leg having sets of openings therein.   Each set of openings comprises a pair of  side-by-side  openings above  a  further opening.  A wall panel support has a central mounting portion with a pair of side-by-side hooks above a projecting tongue; a wing extends from either side of the central mounting portion.          In order to attach the panel support to one of the sets of openings, the hooks of the central mounting portion are received within the side-by-side openings of a set of openings and the tongue is snap fit into the remaining opening.   A wall panel having gang nail clips may then be placed against the stud and lowered so that the clips rest on the top edges of the wings of the panel support.
Patent CA-2163754-A1 (CA)
Title: Sand screen structure
Inventor: KOEHLER PAUL CHARLES
IPC: B01D35/26
Filed: 1994-05-17
Abstract: A damage resistant sand screen assembly has at least one layer of a sintered porous medium preferably a sintered metal membrane, coaxially disposed about and secured to a perforated core. The assembly may also include a woven wire mesh drainage layer disposed between the perforated production tube and the sintered porous medium, and a protective covering, preferably a woven wire mesh. The assembly is suitable for use in gravel pack, or it may be installed outside of agravel pack, such as on the end of a production pipe or on a down-hole pump.
Patent CA-2164357-A1 (CA)
Inventor: DODABALAPUR ANANTH
IPC: H01L29/786
Filed: 1995-12-04
Abstract: Articles according to an embodiment of the invention comprise an improved organic thin film transistor (TFT) that can have substantially higher source/drain current on/off ratio than conventional organic TFTs. An exemplary TFT (20) according to the invention comprises, in addition to a p-type first organic material layer (16) (e.g., .alpha.-6T), an n-type second organic material layer (21) (e.g., Alq) in contact with the first material layer. TFTs according to the invention can be advantageously used in, for instance, active liquid crystal displays and electronic memories, and a preferred embodiment is expected to find wide use in complementary circuits. The preferred embodiments are organic TFTs that can be either n-channel or p-channel transistors, depending on biasing conditions. In aspecific embodiment the transistor comprises a 15 nm thick layer of .alpha.-6T (115) with a 40 nm thick layer of C 60 thereon (116). The latter was protected againstdegradation by the ambient by means of an appropriat e electrically inert layer.
Patent CA-2164959-A1 (CA)
Title: Compound for protective and anchor groups and its use
Inventor: FRANK RONALD
IPC: C07K5/087
Filed: 1994-06-10
Abstract: The invention relates to compounds which can be reacted with a carboxyl function with formation of an ester bond, whereby a protective group and, in particular, an anchor group for the carboxyl function is provided. The invention further relates to esters of acids which are obtainable by esterification with a compound according to the invention, and to the use or the compounds according to the invention in peptide synthesis.
Patent CA-2165667-A1 (CA)
Inventor: DECAIRE BARBARA RUTH
IPC: C07C19/08
Filed: 1994-05-27
Abstract: L'invention concerne des compositions de type azéotrope contenant du trifluorométhane et de l'anhydride carbonique ou de l'hexafluoroéthane et de l'anhydride carbonique; ces compositions sont stables et sont utiles comme caloporteurs pour chauffer et pour refroidir, ainsi que comme compositions pour éteindre un feu.
Patent CA-2167584-A1 (CA)
Title: Aza spiro compounds acting on the cholinergic system with muscarinic agonist activity
Inventor: FISHER ABRAHAM
IPC: A61K31/438
Filed: 1994-07-15
Abstract: The invention relates to spiro compounds having central and peripheral nervous system activity, for example muscarinic agonist activity, having formulae (I, II, III, IV, V, VI, VII, VIII and IX) and their pharmaceutically acceptable salts, quaternary compounds which are structurally derived from said compounds having a tertiary nitrogen atom, enantiomers and racemates, wherein ring A together with the spiro-carbon atom constitutes a bridged or unbridged ring containing one or two ring nitrogen atoms, and the value of each of the other symbols in the formulae is defined.
Patent CA-2168344-A1 (CA)
Inventor: GRONBERG VIDAR
IPC: C12S3/08
Filed: 1995-06-14
Abstract: L'invention concerne des enzymes possédant une activité xylanase. Ces xylanases sont caractérisées en ce qu'elles sont actives à une température de 80~ C ou plus. On obtient ces enzymes à partir de bactéries thermophiles anaérobies. Ces enzymes sont utiles dans des procédés de production de pâte à papier et de papier. L'invention concerne également le clonage et l'expression de gènes possédant l'activité xylanase et obtenus à partir des souches déposées.
Patent CA-2168419-A1 (CA)
Title: Playback method and apparatus for reproducing encoded data in a reverse playback operation
Inventor: KAWAMURA MAKOTO
IPC: H04N9/877
Filed: 1996-01-30
Abstract: Encoded data is reversely reproduced by decoding each picture only once and using only as many frame memory sections as are needed in a normal playback operation. A picture header detector detects a picture header from data read out from a video code buffer to identify the type of picture. The picture type information controls a picture data selecting circuit for selecting frames of I and P pictures equal in number to the number of frame memory sections in a frame memory bank. The selected frames are supplied to an inverse VLC circuit to be decoded, starting at the head of a GOP with an I picture. The decoded I and P pictures are stored in the frame memory bank and transmitted to a display unit, starting with the temporally most recent picture and reading backward.
Patent CA-2168901-A1 (CA)
Title: Proces for preparing potassium peroxomonosulphate triple salt 2 khso5õkhso4õk2so4
Inventor: SOICKE HARTWIG
IPC: C01B15/08
Filed: 1996-02-06
Abstract: The invention relates to a process for preparing the potassium peroxomonosulphate triple salt 2 KHSO5KHSO4 K2SO4 by partial neutralisation of a Caro's acid fed to a working solution containing KHSO5 and KHSO4 with caustic potash solution and evaporation of water.  According to the invention, the cold crystallisation procedure hitherto required is avoided and a high active oxygen yield is produced by using a Caro's acid with 50 to 70 wt.% of H2SO5 and 15 to 30 wt.% of H2SO4 and a working solution with a concentration of 28 to 38 wt.% of KHSO4, 18 to 28 wt.% of KHSO4 and greater than 0 to 3 wt.% of K2SO4 and supplying additional sulphuric acid, wherein the molar ratio of H2SO5 to added H2SO4 to KOH is 3 to 1 : 3 to 5 : 8.
Patent CA-2171230-A1 (CA)
Title: Waste bin spreader cover
Inventor: KUMPOLT REINHARDT K
IPC: B65D88/10
Filed: 1996-03-07
Abstract: A wood waste bin spreader cover for conventional waste bins forms an enclosed cover over the waste bin, having a raised roof.  An auger running longitudinally along the roof under its peak carries waste away from an inlet at one end of the auger and roof peak to fill the bin evenly.  When the bin is full the auger pushes the waste through a tunnel to open an overload relief door in a gable at the far end of the roof from the inlet.  This door has a 'FULL' indicator blade which slides down when open to indicate the bin is full.  A trip switch activating a signal light or off switch for the system is conveniently incorporated in the door.
Patent CA-2172954-A1 (CA)
Title: Enzyme and its use in preparing (s)-pipecolic acid
Inventor: WISDOM RICHARD ANTHONY
IPC: C12R1/05
Filed: 1994-10-14
Abstract: An enzyme having acylase activity capable of hydrolysing N-acetyl-(R,S)-pipecolic acid stereo-selectively, to give (S)-pipecolic acid, wherein said activity is greater than that on N-acetyl-S-proline, at pH 7.5, 25 °C, and substrate concentration 20 g/l, in 75 mM Tris buffer.
Patent CA-2174253-A1 (CA)
Title: Three phase flicker free hmi lamp
Inventor: DE ERNSTED MAURICE
IPC: H05B41/14
Filed: 1996-04-16
Abstract: The Film lighting industry makes extensive use of arc discharge lamps, better known as the HMI lamp. ( High Metal Iodide). These lamps range in wattage from the 575 W, 1.2 Kw, 2.5 Kw, 4 Kw, 6Kw, 12 Kw, to the 18 Kw. They are single phase 60 cycle, 110-220 V, A.C. powered, at least here in America. They also require a Ballast to drive them. Under certain conditions they cause a Flicker effect on the image. To solve this problem, the industry manufactures an Electronic F]icker Free Ballast using a Square wave. My invention uses a 3 Phase Powor system instead of the Single Phase system to drive these lamps, thus eliminating the need of creating a Square Wave.
Patent CA-2175291-A1 (CA)
Title: A suitcase or similar receptacle
Inventor: SCHLEER HILMAR
IPC: A45C13/22
Filed: 1996-04-29
Abstract: The invention relates to a suitcase or similar receptacle with at least one handle for its transport.   It is characteristic of the suitcase or the like embodying the invention that the handle is adapted to be pivoted, lowered and/or slid from a transport position into a safety position in which handle cannot be clasped from without, and is adapted to be safeguarded in said non-claspable safety position, or that the handle is held on the suitcase or similar receptacle in a manually detachable condition and is manually mountable.  Thus the handle or handles of the suitcase embodying the invention can be moved or removed in such a way as not to be readily available, particularly to unauthorized persons, for further transport.  Anybody transporting a suitcase or similar receptacle in such an unusual and inconvenient way is easily detectable.  Hence this serves to deter thieves from stealing the suitcase or the like according to the invention.
Patent CA-2175506-A1 (CA)
Inventor: SIBLEY DWIGHT ARNOLD
IPC: B30B9/30
Filed: 1996-05-01
Abstract: A baler for forming parallelepiped bales includes an auger compactor located within a mainly cylindrical auger housing having a rear transition section including four corner feed structures spaced equally about the auger housing longitudinal axis.  Each corner feed structure is defined by a pair of walls joined to define a corner which leads to a respective corner of a rectangular cross section bale-forming chamber at the rear end of the auger housing.  The junction of one of the walls of each corner structure with the cylindrical auger housing is generally oriented so as to be crosswise to the direction of the auger flighting as it passes beneath the junction.  A stripper plate is located along each junction, which occurs at the downstream side of the associated corner feed structure, as considered in the direction of rotation of the auger, for stripping material from the outer part of the auger flighting so that it enters the corner feed structure. The stripper plates also serve to support the rear end of the auger.
Patent CA-2176618-A1 (CA)
Title: Method and apparatus for joining workpieces together
Inventor: AEBERSOLD HANS
IPC: B23K26/00
Filed: 1996-05-14
Abstract: In a method for joining workpieces together by welding by means of a welding energy source a plurality of workpieces are joined together in a plurality of welding stations, in succession, by a common welding energy source.
Patent CA-2177708-A1 (CA)
Inventor: KNOPP JOHN FREDERICK DAVID
IPC: H05K3/42
Filed: 1994-12-02
Abstract: A method is provided herein for making a printed circuit board. The method includes the first step of forming conduc-tive circuit elements on two opposed faces of a paper phenolic-containing substrate. The substrate and the conductive circuit elements are then coated with a desensi-tising material. Holes are formed through the substrate, each hole passing through a circuit element on each of the opposed faces of the board. The board is then treated to render the substrate which is exposed in the holes receptive to the action of a metallic plating solution. The de-sensitising material is then removed. An acid-resist mask is presented onto both faces of the board, the mask leaving exposed only a small area of the board surrounding each hole therethrough.      Finally, the board is treated with an electroless nickel-plating solution to deposit nickel in the holes to the desired thickness to provide an electrical connection through each hole between two opposed conductive circuit elements.
Patent CA-2178190-A1 (CA)
Inventor: SASAKI SHIGEHARU
IPC: H02J3/38
Filed: 1996-06-04
Abstract: An air conditioner equipped with a solar generator is disclosed. The solar generator is capable of converting the DC power generated by a solar cell into the AC power whose voltage and frequency correspond to that of the commercial power source. The electrical power generated by the solar cell and the electrical power consumed by the air conditioner are monitored and may be displayed. The DC power generated by the solar cell is used directly by the air conditioner or used indirectly as the commercial power source by merging the converted AC power to the commercial power source. Further, the converted AC power may be selectively merged to the commercial power source depending on the various states of the air conditioner, and the air conditioning operations may be regulated depending on the electrical power generated by the solar cell.
Patent CA-2181549-A1 (CA)
Title: Slot machine
Inventor: TAKEMOTO TAKATOSHI
IPC: G07F17/32
Filed: 1995-01-12
Abstract: An object of the invention is to provide a slot machine eliminating operation of a start lever and specification of the number of medals to be bet. The number of medals to be bet is specified with a number-of-medals setting switch, which holds the setup state until it is next operated. If the number of medals input through a medal slot is equal to or greater than the number of medals set with the number-of-medals setting switch, a control section automatically starts a change display section for executing game play. Players can concentrate more on playing a game. On the other hand, for gaming houses, the net operating rate of the slot machine also improves, resulting in an increase in sales.
Patent CA-2183059-A1 (CA)
Title: Tracing with keys and locks on a telecommunication network
Inventor: LINNERMARK NILS OLA AXEL
IPC: H04Q3/545
Filed: 1995-02-23
Abstract: A method and apparatus for detecting events occurring in a telecommunications network is disclosed which comprises stored program control exchanges, each SPC exchange comprising a switch and processors for executing software programs to control the switch. Code sequences, or daemons, are implanted in selected portions of the software programs, each code sequence including a conditional statement responsive to certain events and at least one activity resulting from the detection of a certain event satisfying the conditional statement. A lock value is assigned to each of the code sequences, each lock value uniquely identifying the corresponding code sequences and being operable to activate the processors for executing the code sequence. A key value is compared to each lock value for selectively activating the processor to execute the code sequence when the key value equals the lock value. The processor executes the activity specified in the code sequence if the detected event satisfies the conditional statement and continues execution of the software program whereby continuousprocessing in the SPC exchange is maintained.
Patent CA-2185776-A1 (CA)
Inventor: DERIAN GARY A
IPC: F16J15/16
Filed: 1996-09-17
Abstract: An anti-pack out seal for use between fluid containing cylinders and pistons which are axially slideable therein and which extend through an opening in the end of such pistons.  This seal has an annular channel adjacent to a resilient elastomeric seal ring, through which channel, an air stream containing an oil mist is circulated to remove solid particles of material which may separate or pack out from the fluid in the cylinder and in addition to prevent curing of the solid particles between the cylinder, the elastomeric seal and the bearing surrounding the cylinder.
Patent CA-2187311-A1 (CA)
Title: Detergent compositions
Inventor: APPEL PETER WILLIA
IPC: C11D3/00
Filed: 1995-07-08
Abstract: A particulate detergent composition containing more than 5 wt.% of C8-20 primary alcohol sulphate and/or at least 8 wt.% of an ethoxylated C8-20 alcohol nonionic surfactant and/or more than 15 wt.% of total non-soap organic surfactant, and a builder system containing alkali metal aluminosilicate, also comprises from 0.01 to 5 wt.% of an antioxidant, preferably a sterically hindered phenol, more preferably butylated hydroxytoluene or butylated hydroxyanisole. The composition exhibits improved stability of the surfactant system on bulk storage and handling.
Patent CA-2187966-A1 (CA)
Title: Method and apparatus for determining metal freezing points
Inventor: MA CHE KEUNG
IPC: G01N25/04
Filed: 1996-10-16
Abstract: A method and apparatus for determining the freezing points of a metal by inducing solidification in a cooling liquid metal sample in a supercooled state and utilizing specific detected peak values or changes in slope in a temperature/time  plot  as  the  sample  cools,   begins solidification and recalesces.   It was found that the maximum temperature reached after the second rise, if two rises  occur,  the  maximum  of  a  single  rise,  or  the temperature  at  which  the  rate  of  temperature  drop decreases, if no temperature rise occurs, provides a useful approximation of the liquidus temperature and hence the freezing point of the sample.
Patent CA-2188074-A1 (CA)
Inventor: KURTH DIETER
IPC: B41F23/00
Filed: 1996-10-17
Abstract: A process of converting and printing on paper webs includes converting the running web by coating and/or calendering the web. Printing of the web occurs directly after the converting step. Thus, the converted web is not wound into a roll between the converting step and the printing step. A facility for converting the web of paper is placed in front of the entrance to a printing machine. The pass-through speed of the converting facility matches that of the printing machine.
Patent CA-2189529-A1 (CA)
Title: Automatic continuously variable positive mechanical transmission and method for actuating same
Inventor: VALDENAIRE JEAN
IPC: F16H3/76
Filed: 1995-05-04
Abstract: A planetary assembly (44) interconnects an input shaft (30) transmitting an engine torque (CM) and an output shaft (31) transmitting a resisting torque (CR). A counter torque (RC) caused by engagement with a fixed point (35) of the housing is added to the engine torque in the planetary assembly (44) via a two successive centrifugal planetary devices (36, 37) with eccentric fly-weights. The second centrifugal device (37) constantly balances the three torques (CM, CR and RC). The first centrifugal device (36) transmits the resisting torque (CR) to the second device while controlling it by adjusting the eccentricity of the fly-weights. This transmission can drive the output shaft at a continuously variable speed between zero and a speed at least as high as that of the input shaft, and is useful for driving variable speed machines or vehicles.
Patent CA-2192650-A1 (CA)
Title: Foldable zipper slider with improved compression-type latch
Inventor: GROSS JON
IPC: B65D33/25
Filed: 1995-05-04
Abstract: A plastic zipper slider (10) having hinged wings (21, 22) is provided with an improved latch tongue (22b) which is deflected downward to snap in place.  Additional flexible latch web structure (22w) cooperates with the latch tongue (22b) to provide additional forces which are active in assuring that the wings (21, 22) are fully latched and to also provide additional resistance to unlatching the wings (21, 22).
Patent CA-2193929-A1 (CA)
Inventor: SVENSSON NILS
IPC: F15B20/00
Filed: 1996-12-24
Abstract: A reset lockout for a control device which functions to control and monitor the essentially simultaneous energization of two electromagnets (61, 62) in response to a respective electric signal  (S1, S2) applied to said electromagnets essentially  simultaneously,  wherein  each  electromagnet includes an element (71, 72) which in a non-energized state of the electromagnet takes a first inactive, normal position and which upon activation of the electromagnet is displaceable to a second active terminal position,  wherein the control device is constructed to ensure that the displaceable elements (71, 72) of both electromagnets (61, 62) will be moved to their respective active end positions essentially simultaneously and then remain in said end positions provided that both signals (S1, S2) are applied essentially simultaneously and then both maintained. Sensor means are provided for ascertaining in each working cycle of the control device that both controls signals have been applied and that the displaceable elements of both electromagnets have been moved to their respective active end positions. The reset lockout is constructed to break the supply of current to the control device when this provision is not met.
Patent CA-2194147-A1 (CA)
Title: Management method and apparatus for copyright protection of programs-on-demand
Inventor: KIM YOUNG JIN
IPC: G06Q30/00
Filed: 1996-05-02
Abstract: Disclosed is a management method and apparatus for copyright protection of a program-on-demand, including a base station (50) which is a program seller, a copyright management system (10) contained in a personal computer (1) which is a program purchaser, and a telephone communication network or an Internet for mutually connecting the base station (50) with the copyright management system (10). A program purchasing request command is given from the copyright management system (10), and then a user identification number is requested by the base station (50). It is discriminated whether the user identification number input according to the program purchasing request command corresponds to the copyright management system (10) to be managed by the base station (50). If it is discriminated as a corresponding user identification number, the requested program is supplied together with the program use restriction contents, to control the program to be performed within the scope of the program use restriction contents and to protect the copyright of the program which is supplied via a communication network.