baber/WOPTO huggingface dataset:
Patent CA-1299522-C (CA)
Title: Opening arrangement on packing containers
Inventor: RAUSING HANS
IPC: B65D5/72
Filed: 1988-01-27
Granted: 1992-04-28
Abstract: Abstract Opening arrangements on packing containers of the non-returnable type for e.g. milk are usually of fairly simple design and lack e.g. reclosing facilities.   A readily openable and reclosable opening arrangement in accordance with the invention comprises a pouring pipe     attached to the outside of the packing container, wherein a slide      is manoeuvrable  by means of a projecting gripping element    . When the slide is pushed to the open position the packing container wall is penetrated by ploughlike elements joined to the slide, so that the contents may be emptied out via the pouring pipe. The opening arrangement also may be  used  on pecking containers which consist of several part containers whose contents may be emptied out through a joint pouring pipe.
Patent CA-1292877-C (CA)
Title: Flow modification at the bifurcation of a branch channel from a mainchannel carrying a water flow
Inventor: CHRISTIANSEN HERMANN
IPC: E02B3/02
Filed: 1988-03-04
Granted: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE            A bifurcated channel comprising a main channel carrying a water flow and a branch channel bifurcating therefrom is  provided with  flow deflecting means  adjacent  the upstream corner of the bifurcation relative to the water flow,  the  deflecting  means  comprising  a  wall  which defines a narrow channel extending around the corner, with its inlet in the main channel and its outlet in the branch channel, for deflecting a small proportion of the water flow from the main stream into the branch channel to counteract the effect of the normal flow of water from the main flow into the branch which causes eddying; the small deflected flow opposes the eddy and either reduces it or prevents its formation so as to reduce the sedimentation normally  caused by  such  eddies  at  the entrances to branch channels.
Patent CA-1305961-C (CA)
Title: Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use in paper
Inventor: BILLMERS ROBERT L
IPC: C08L3/04
Filed: 1988-03-18
Granted: 1992-08-04
Abstract: POLYSACCHARIDE DERIVATIVES CONTAINING ALDEHYDE GROUPS, THEIR PREPARATION FROM THE CORRESPONDING      ACETALS AND USE AS PAPER ADDITIVES     ABSTRACT OF THE DISCLOSURE       Polysaccharide aldehydes having the formula               (I) or Sacch-O-CH2-Ar-CHO (II) such as starch, cellulose, and gum aldehydes, are useful as paper additives for imparting strength and as the granular or gelatinized portion of a corrugating adhesive.    Those having formula I are prepared by a non-oxidative method which involves reacting the polysaccharide base, in the presence of alkali, with a derivatizing acetal reagent having the general structure        and then hydrolyzing the acetal by adjusting the pH to less than 7, preferably 2-4.  In the formula Ar is an aryl group, optionally containing an ether linkage, or an alkaryl group and A and A' are lower alkyls or together form at least a 5-membered cyclic acetal.  The polysaccharide aldehydes are crosslinked by the addition of selected polyfunctional crosslinkers such as an aliphatic primary polyamine or polyketone.
Patent CA-1313966-C (CA)
Title: Method for fractionating mixed pulp according to the fiber properties
Inventor: TISTAD GOERAN
IPC: D21D5/02
Filed: 1988-04-05
Granted: 1993-03-02
Abstract: SUMMARY        The invention relates to production of pulp from fiber containing raw material such as different species of wood or other plants whereby in a continuous production process during transition from one raw material to another a not wanted mixed pulp is produced.  By fractionating the mixed pulp by means of a suitable device responsive to the fiber properties, the fractions can be returned to each pulp type which normally is produced from the entering raw materials, whereby both technical and economical advantages are obtained.
Patent CA-1327254-C (CA)
Inventor: SEELMANN-EGGEBERT HANS-PETER
IPC: A01C1/06
Filed: 1988-04-07
Granted: 1994-02-22
Abstract: Abstract of the Disclosure:  Water-soluble copolymers having a K value of from 8 to 100 (determined according to H. Fikentscher on sodium salt in aqueous solution at 25°C, a pH of 7 and a polymer concentration of the Na salt of 1% by weight) contain, in polymerized form, a)      not less than 15 mol % of one or more monoethy-lenically unsaturated C3-C6-monocarboxylic acids, b)      from 0.5 to 84.5 mol % of one or more ethyleni-cally unsaturated C4-C6-dicarboxylic acids, c)      from 0 to 20 mol % of one or more hydroxyalkyl esters, where hydroxyalkyl is of 2 to 6 carbon atoms, of monoethylenically unsaturated C3-C6-carboxylic acids, d)      from 0 to 30 mol % of other water-soluble, mono-ethylenically unsaturated monomers copolymerizable with a), b) and c), e)    from 0.5 to 15 mol % of a comonomer which pos-sesses two or more ethylenically unsaturated, nonconjug-ated double bonds and one or more -CO-OH groups and/or their salt with an alkali metal, ammonium or alkaline earth metal base and, if required, f)      up to 10 mol % of one or more comonomers which differ from e) and possess two or more ethylenically un-saturated, nonconjugated double bonds, are prepared by copolymerization of the monomers a) to f) and are used for coating seed.
Patent CA-1301588-C (CA)
Inventor: LIMIROLI MARIO
IPC: F16L37/00
Filed: 1988-05-24
Granted: 1992-05-26
Abstract: ABSTRACT         The present invention relates to an improved pressure adjusting device for controlling the flow rate of liquid gases, which comprises a body     consisting of a top half shell     and a bottom half shell  , coupled to one another through the interposition of a resilient membrane     which defines a gas pressure control chamber     and a gas pressure reducing and delivery chamber    , communicating with a gas de-livery outlet.     The bottom half shell     defines with the valve     of the gas pressure vessel The main feature of the invention is that there are provided quick coupling means     , opera-ting between the end piece     and the valve which are adapted to operatively engage with the operating knob      of the valve means of the adjust-ing device for preventing the adjusting device from improperly engaging with or disengaging from the gas pressure vessel     as the mentioned valve means are in their opening position,
Patent CA-1305159-C (CA)
Title: Process for preparing propylene oxide and butylene oxide
Inventor: MCCONCHIE GARNET E
IPC: C07D301/03
Filed: 1988-05-25
Granted: 1992-07-14
Abstract: ABSTRACT         Propylene oxide is prepared from a propylene glycol diester by hydrolyzing the propylene glycol diester at least partially to the corresponding hydroxyester and eliminating earboxylic acid from the hydroxyester.  The propylene glycol diester has been produced by reacting a 1,2-dihalogenopropane with an alkali metal or alkallne earth metal salt of a carboxylic acid within a single phase reaction medium comprising an organic liquid reactlon diluent wherein the inorganic salt formed during the reaction is insoluble.
Patent CA-1311567-C (CA)
Inventor: ALEGRE RENE
IPC: G01N23/222
Filed: 1988-07-14
Granted: 1992-12-15
Abstract: Analysis of the content of certain elements in a continuous flow of bulk materials by neutron bombardment and measurement of the gamma radiation emitted by these elements, which makes it possible to distinguish between the capture radiation and the activation radiation. The neutron source is a neutron-generating tube (7) which is activated periodically. The signals from a single gamma radiation detector (10) are considered only after neutron emission has ceased, during distinct intervals corresponding respectively to the phenomena of capture and radiation of the activated elements. The respective signals are treated in two distinct measurement routes and the results are then combined automatically. A third measurement route can be provided for gamma radiation resulting from inelastic shocks. The source (7) and the detector (10) are grouped in a probe (6) lodged in a polyethylene protective tube (5) inside the flow of the materials (1). The installation is used to analyse large flows of minerals without taking samples, in particular in the mining, coal mining, cement, and aluminium industries.
Patent CA-1338082-C (CA)
Title: Production of thin films
Inventor: WEGNER GERHARD
IPC: B05D1/20
Filed: 1988-07-22
Granted: 1996-02-27
Abstract: Thin films are produced by a process in which organic polymers having long-chain side groups are dissolved in an organic solvent, the solution is spread at the water/air interface by the Langmuir-Blodgett technique and the film is transferred onto a solid base material after evaporation of the organic solvent, and the organic polymers used are those which contain long-chain n-alkyl side groups bonded to the main chain of the polymer via polar groups, and some of these long-chain n-alkyl side groups are replaced by shorter-chain n-alkyl side groups, by branched alkyl side groups having the same or a smaller number of carbon atoms or by equally long or shorter side groups having one or more C-C multiple bonds.        This process can be used to produce film ele-ments, for example for optical filters.
Patent CA-1326531-C (CA)
Inventor: TAKASE AKIHIKO
IPC: H04Q11/04
Filed: 1988-08-23
Granted: 1994-01-25
Abstract: Abstract:          In a communication method for use in a network for digital data exchange/transfer through a circuit switched network, a call is given the attribute of an intermittent transfer mode.  The network controls identify attributes in connection paths, so as to establish a path only in response to a data transfer request from an identified call, and releases the path when the call is held on standby for data transfer.
Patent CA-1314265-C (CA)
Title: Disposable sterilization package
Inventor: JUSELIUS JUKKA
IPC: A61B50/30
Filed: 1988-09-09
Granted: 1993-03-09
Abstract: Abstract The present invention relates to a disposable sterilization package especially for packing hospitals utensils. Known packages are formed partly of porous paper, which especially after vapor sterilization is weakened to such an extent that it may break up for minor reasons.  Additionally,  when opening the package,  fibers from the paper layer may be detached onto the surface of the object put into the package, thus risking contamination of the object.            The package in accordance with the invention comprises partly of a plastics material and partly of a non-woven or other material, whereby the non-woven or other material is such as to permit the breathing of the package required in the sterilization,  whilst being such as to prevent bacteria or other contaminants from entering the package after the sterilization.
Patent CA-1283458-C (CA)
Title: Cordless guitar transmitter
Inventor: DAVIS RICHARD L
IPC: G10H1/00
Filed: 1988-10-27
Granted: 1991-04-23
Abstract: ABSTRACT      An electronic device is provided which, when connected to an electric guitar, or other similar stringed instrument, will effect wireless transmission over a selectable frequency of the FM broadcast band. The unit is compact as it uses the metal strings of the guitar as a partial antenna.  The unit remains stationary after being plugged into the guitar's input receptacle, and no transmitting portion of the device has to be attached to the musician's belt or guitar strap, or to the musician's person in any fashion.  Furthermore, no large unsightly, cumbersome antenna extends from the device itself.  The device is automatically turned on when plugged in.
Patent CA-1281177-C (CA)
Title: Paint color change system
Inventor: ELBERSON MICHAEL D
IPC: C09D7/80
Filed: 1988-11-07
Granted: 1991-03-12
Abstract: Paint Color Change System Abstract A paint color change system and method for sequentially supplying different color electrically conductive paints to an electrostatic applicator.  Paint is supplied through a supply hose to a first isolated reservoir and the supply hose is purged and dried to form a voltage block.  While paint is supplied through a first delivery hose from the first reservoir to an applicator, a second reservoir is cleaned, paint is supplied to the second reservoir through a supply hose, and the supply hose is purged of paint and dried to form a voltage block.  Upon completion of coating with the first color paint, the first delivery hose is purged of paint and dried to form a voltage block and paint then is supplied from the second reservoir through a second delivery hose to the coating applicator.  If the same color paint is applied from both reservoirs, the first delivery hose can be cleaned and dried after paint delivery from the second reservoir has started to permit continuous coating.
Patent CA-1318486-C (CA)
Title: Repair of the refractory lining of the wall of a shaft furnace and a repaired shaft furnace
Inventor: VAN DER HOEFF JOSEPH A M
IPC: C21B7/06
Filed: 1988-11-30
Granted: 1993-06-01
Abstract: REPAIR OF THE REFRACTORY LINING OF THE WALL OF       SHAFT FURNACE AND A REPAIRED SHAFT FURNACE              ABSTRACT OF THE DISCLOSURE             In the repair of a refractory lining of a shaft furnace having a steel shell, a worn residual refractory lining inside the shell and cooling plates extending through the shell into the refractory lining, the worn lining is retained and an additional lining structure is added by (a)    forming a refractory concrete layer with a flat upper surface at a ring of said cooling plates, (b)    building up on the flat upper surface a refractory brickwork of blocks which is self-supporting and which has recesses in which cooling plates are located with clearance, the blocks being selected in accordance with the amount of wear locally, (c)    filling space between the brickwork and the residual lining with concrete, and (d)     filling the clearance space between the brickwork and the cooling plates in the recesses with a thermally conductive rammed mass.          (Fig. 1)
Patent CA-1319109-C (CA)
Title: Spray dried ibuprofen
Inventor: HO YING T R
IPC: A61K9/50
Filed: 1989-01-17
Granted: 1993-06-15
Abstract: A B S T R A C T                   SPRAY DRIED IBUPROFEN            A therapeutic taste-neutral powder form of ibuprofen obtained by spray-drying a dispersion of ibuprofen and ethyl cellulose in water having a plasticiser dissolved or suspended therein.
Patent CA-1319051-C (CA)
Title: Marine propeller drive system
Inventor: HAHN STEVEN C
IPC: B63H23/02
Filed: 1989-02-16
Granted: 1993-06-15
Abstract: ABSTRACT OF THE DISCLOSURE      A constant drive system for marine applications having a constant velocity universal joint for articulating the propeller shaft without transmitting the propeller thrust therethrough, the propeller thrust being delivered to the boat hull in line with an inner propeller shaft.  The inner propeller shaft is gearingly connected to a marine power plant located within the boat, exits from the boat and connects to the inner race of the constant velo-city universal joint.  An outer propeller shaft connects to the outer race of the constant velocity universal joint and ends at the propeller.  In order that the constant velocity universal joint serve to transmit rotational torque and permit articulation of the outer propeller shaft relative to the inner propeller shaft without propeller thrust being transmitted therethrough, thrust from the propeller is directed by thrust bearings to an inner and outer thrust housing, thereby bypassing the inner race member of the constant velocity universal joint and the inner propeller shaft.  The inner thrust housing includes an annulus inside of which is located the inner propeller shaft, resulting in propeller thrust being delivered to the boat in line with the inner pro-peller shaft.  Steering is accomplished by rotation of a steering shaft, which turns the outer thrust housing and the outer pro-peller shaft.  The marine propeller drive system may be mounted at the transom or at the hull.
Patent CA-1323047-C (CA)
Title: Game device
Inventor: FABIAN ELLIS
IPC: A63F9/04
Filed: 1989-03-29
Granted: 1993-10-12
Abstract: ABSTRACT OF THE DISCLOSURE     A strategy game device has a support base with  a top surface and at least three peg receptacles, each rotatably connected to the base at the center of the receptacle.  each receptacle has at least three peg-receiving holes equally spaced about the periphery of the receptacle.  The number of holes in each receptacle is the same.  There are at least two sets of pegs and each set comprises a number of pegs which can be inserted in the aforementioned holes.  each set has a color different than the color of the other sets.  In one version the centers of the peg receptacles are spaced apart along a straight line extending parallel to the top surface of the base.  In another version the peg receptacles are circular and are rotatable about a common center axis.  In the preferred version of this embodiment, each receptacle has eight peg-receiving holes equally spaced from one another about the periphery.
Patent CA-1334617-C (CA)
Title: Lost foam engine block pattern
Inventor: VANRENS RUSSELL J
IPC: F02B75/02
Filed: 1989-06-02
Granted: 1995-03-07
Abstract: Disclosed herein is a lost foam pattern for an engine block including a cylinder and an axially extending transfer passage defined by spaced side walls and an inner wall which is outwardly convex, the pattern comprising a first pattern piece including a wall defining a portion of a cylindrical bore having an axis, and a passage recess extending in the direction of the axis of the cylindrical bore and communicating with the cylindrical bore, which passage recess is defined by opposed walls extending axially with respect to the cylindrical bore and forming the spaced side walls of the transfer passage, a second pattern piece located in the passage recess, having a first arcuate wall forming a continuation of the cylindrical bore portion in the first pattern piece, having a second arcuate wall forming the inner wall of the transfer passage and being outwardly convex, and additional recesses and portions on the first and second pattern pieces for locating the pattern pieces relative to each other and for preventing relative movement therebetween except in the direction opposite the direction of assembly of the the pattern pieces.
Patent CA-1328174-C (CA)
Title: Lock cylinder and key with a security element  matched thereto
Inventor: KUSTER HEINZ
IPC: E05B19/00
Filed: 1989-07-13
Granted: 1994-04-05
Abstract: ABSTRACT   A lock cylinder with key, in which the cylinder has a rotor and a stator with radial tumbler pins and the key has depressions corresponding  to the tumbler pins, has at least one tumbler pin exercising the function of a control pin (K), m that a zone formed by an offset is used for a flank code (F), provided in addition to the depth code (T) and having a diameter (B) corresponding to an additional code and the associated key has a depression with side flanks (8), whose spacing corresponds to the coded diameter (B) of the offset of the control pin.
Patent CA-1321689-C (CA)
Title: Process for preparing membranes from tetrahalobisphenol polycarbonates
Inventor: SANDERS EDGAR S JR
IPC: B01D71/50
Filed: 1989-07-27
Granted: 1993-08-31
Abstract: ABSTRACT     The invention is a process for the preparation of a membrane comprising bisphenol-based polycarbonate wherein at least 25 percent by weight of the bisphenol moieties are tetrahalogenated wherein the halogen is Cl or Br, and the membrane prepared by such process.  The process generally requires (1) mixing (i) a bisphenol-based polycarbonate wherein at least 25 percent by weight of the bisphenol moieties are tetrahalogenated, wherein the halogen is Cl or Br, and (ii) a solvent for such polycarbonate, wherein the mixture has a sufficient viscosity to allow extrusion at temperatures at which the mixture is homogeneous; (2) heating the mixture to form a homogeneous fluid that is extrudable; (3) extruding the heated mixture into a shape suitable for membrane use; (4) passing the formed membrane through a quench zone wherein the mixture undergoes phase separation, and the major portion of the solvent is removed from the formed membrane, wherein the membrane 36,551-F     formed is a membrane with a discriminating region capable of separating oxygen from nitrogen.  Such membranes have excellent mechanical and thermal properties.   36,551-F
Patent CA-1318382-C (CA)
Inventor: DRISCOLL JOHN L
IPC: H04M3/56
Filed: 1989-08-24
Granted: 1993-05-25
Abstract: ABSTRACT        PROGRAMMABLE CONFERENCING MODULE FOR RING ARRAYS AND SWITCHABLE RING ARRAY NETWORKS          The present invention pertains to a conferencing network.  The conferencing network is comprised of a ring array  comprised  of  K  conferencing modules, where K is greater than or equal to 3 and  is  an  integer.   The  K conferencing  modules  are  capable  of being in desired states.  The conferencing network also includes means for controlling  the  ring  array  such that the conferencing modules are placed  in  the  desired  states.   Switching stages comprised of switches can also be implemented into the conferencing network.
Patent CA-1324837-C (CA)
Inventor: ARNOLD SCOTT
IPC: G06F15/177
Filed: 1989-09-22
Granted: 1993-11-30
Abstract: ABSTRACT OF THE DISCLOSURE      An efficient  synchronizing  scheme  is provided  for processing  "locked" memory access requests from various system units, including central processor units (CPUs) and (I/O  units), in  a  high  performance,  multi-processing computer system.   The processing is handled in such a manner that requests are processed according to a locking granularity substantially less than that of the overall system memory while,  at  the  same  time,  insuring  that multiple requests are granted fair and quick access to desired locations in shared memory.   All monitoring and control of lock requests is handled by a system control unit (SCU) which controls the parallel operation of the plurality of CPUs and I/O units relative to the common main memory of the system.  Locking granularity is defined at the level of individual cache blocks for the system CPUs,  and the cache blocks also represent the unit of memory allocation in the computer system being services by the SCU.      The synchronizing scheme operates by interlocking, as a unit,  blocks  of memory containing  designated memory locations.   The SCU is provided with a lock directory defined by a plurality of lock bits in such a way that each  memory  address  associated  with  a  memory  access request is mapped to a corresponding location in the lock directory.  The mapping is such that addresses in the same block of memory are mapped to the same location in the block  directory.    Incoming  lock  requests  for  a  given memory  location  are  processed  by  interrogating  the corresponding lock bit in the lock directory in the SCU by using the associated memory address as an index into the directory.  If the lock bit is not set, the lock request is  granted.    The  lock  bit  is  subsequently  set  and maintained in that state until the unit requesting the lock has completed its memory access operation and send "unlock" request.   If the interrogated lock bit is found to be set, the lock request is denied and the requesting port is notified of the denial and requested to try back again.  A predefined degree of fairness is incorporated in the processing of denied lock requests by the definition of  a  reserve  list  onto  which  denied  requests  are sequentially  positioned  on  a  first-come-first-served basis.