baber/WOPTO huggingface dataset:
Patent CA-1317093-C (CA)
Title: Apparatus for the production of chlorine dioxide
Inventor: LOVETRO DAVID C
IPC: C01B11/02
Filed: 1988-01-12
Granted: 1993-05-04
Abstract: Abstract of the Invention In accordance with the practice of this invention there is provided a process and apparatus for the preparation of chlorine dioxide which employs an improved chlorine dioxide generator comprising a small reaction chamber with means for injecting a concentrated metallic chlorate solution, a concentrated sulfuric acid solution, and gaseous sulfur dioxide. The sulfur dioxide gas is injected into the reaction chamber from the bottom through a porous medium which disperses the gas as extremely the bubbles into the aqueous reaction medium in the chamber.           The reaction chamber is equipped with an internal Teflon braided cooling coil inserted therein which not only cools the reaction medium but also provides a tortuous path for the sulfur dioxide bubbles. By retarding the upward path of the bubbles, the sulfur dioxide is held in solution for a longer period of time allowing more time for reactant gas dissolution and corresponding chemical reaction. The reaction chamber is maintained under superatmospheric pressure so that the chlorine dioxide that is produced is maintained in solution. Keeping the reaction chamber under pressure, as opposed to atmospheric pressure operation, also promotes sulfur dioxide solubility. Because the chlorine dioxide isn't handled in a separate gas phase, operation of the unit is more simple and inherently safer than prior art systems which handle chlorine dioxide as a gas.
Patent CA-1297668-C (CA)
Title: Method and an apparatus for drying a paper web or the like
Inventor: RAUTAKORPI PAAVO
IPC: D21F5/00
Filed: 1988-01-13
Granted: 1992-03-24
Abstract: Abstract The invention relates to a method and an appar-atus for drying a paper web or the like. In the inven-tion the web to be dried is transferred on a felt be-tween bands moving around as an endless loop. The band making contact with the web is heated by means of a steam chamber, and the band making contact with the felt is supported and cooled within the area of the steam chamber by means of supporting and cooling means. For providing a rapid compensation of pressure differences, the supporting and cooling means is formed by a hydrostatic plate comprising a plurality of pressure pockets and return conduits separated from each other by means of ridges. Water is fed into the pressure pockets so that it enters the return conduits over the ridges. The pressure of the return conduits is adjusted on the basis of the pressure of the steam contained in the steam chamber. (Figure 1)
Patent CA-1326000-C (CA)
Title: Closure with guarantee ring for containers
Inventor: WIEDMER ERNST
IPC: B65D41/34
Filed: 1988-01-29
Granted: 1994-01-11
Abstract: Abstract The closure has a body (1) and a guarantee ring (2) connected to it. The hooks (5) applied to the guarantee ring (2) and intended to separate the latter (2) from the body (1) of the closure upon removal of the closure from the container are each equipped with a slide wedge (8). This wedge may perferably be in the middle of the hook which extends longitudinally along the periphery of the closure. The wedge (8) has a slide face (11) of a width (b) that is about a quarter of the length (L) of the hook (5). The slide face (11) is inclined to the interior wall (4) of the guarantee ring preferably at an angle (?) of 31 degrees and initiates at the lower rim (9) of the guarantee ring in order to improve the machine-operated placing of the closure onto the container.     (Fig. 1)
Patent CA-1286378-C (CA)
Title: Electrical connector (cut-off through the cover)
Inventor: MARKWARDT TERRANCE L
IPC: H01R9/24
Filed: 1988-02-16
Granted: 1991-07-16
Abstract: Abstract of the Disclosure An electrical connector for connecting telephone cables wherein an end of each wire is connected to a part of the connector and then cut through cutoff holes in the connector cover, and when the connector parts are assembled to splice the cables said cover has portions to cover the cutoff holes.
Patent CA-1286972-C (CA)
Title: Seat-bed conversion assembly
Inventor: TIFFANY H ROBERT
IPC: A47C17/13
Filed: 1988-03-22
Granted: 1991-07-30
Abstract: ABSTRACT An improved seat-bed assembly providing a seat unit and a back frame support, both of which are interconnected by a controlled linkage that, coupled with a guided movement of the back frame support, will convert the assembly from a seat form to a full length bed. Pivotal withdrawal of the seat unit from the assembly will, through a drag link arrangement, pivot the back frame support through a guided path into a bed forming position with the now extended seat unit.
Patent CA-1335946-C (CA)
Inventor: FEUVRAY ALAIN
IPC: E01F9/688
Filed: 1988-03-25
Granted: 1995-06-20
Abstract: Dispositif portatif de signalisation amovible, à panneau indicateur monté sur un piétement déployable posé sur le sol en position de service, utilisable notamment pour la circulation routière, dans lequel le piètement déployable est constitué de deux éléments avant et arrière articulés, à leurs parties supérieures, autour d'un axe horizontal de manière à pouvoir être appliqués l'un sur l'autre ou dans l'autre en position de stockage et de transport ou à être déployés, en position de service, en formant un dièdre en appui sur le sol; l'élément de piètement avant porte le panneau indicateur. Ce panneau indicateur est articulé à demeure, à sa partie inférieure, sur la partie inférieure de l'élément de piètement avant, autour d'un axe horizontal parallèle à l'axe d'articulation des deux éléments de piètement; un élément de rappel élastique est prévu entre les parties inférieures du panneau indicateur et l'élément de piètement avant pour rappeler élastiquement le panneau indicateur dans une position sensiblement verticale lorsque le piètement est déployé.
Patent CA-1314070-C (CA)
Title: Soft start solid state switch
Inventor: CARLSON PETER J
IPC: H03K17/687
Filed: 1988-03-31
Granted: 1993-03-02
Abstract: Abstract of the Invention The junction temperature rise of a power MOSFET serially connected to a lamp whose resistance nonlinearly increases during turn-on is moderated by the use of control circuitry which initially sets up a relatively low essentially constant current flow through the lamp and transistor and then automatically after the lamp resistance reaches a preselected level, the lamp is allowed to draw significantly more current.  The size and therefore cost of the power MOSFET is reduced significantly because the magnitude of the current spike generated by turning on the lamp is significantly reduced by the use of the novel control circuitry.
Patent CA-1290902-C (CA)
Title: Vacuum sewer arrangement
Inventor: OLIN HENRY
IPC: E03D3/10
Filed: 1988-04-05
Granted: 1991-10-22
Abstract: Abstract A vacuum sewer arrangement comprises a valve controlled air inlet duct to let air into the vacuum sewer at a position downstream of the sewer valve.  The sewer valve can then be closed imme-diately after the sewage has passed into the vacuum sewer, because the air required for the sewage transport is received from the air inlet duct. Hence, the amount of air that flows into the sewer through the sewer valve when the sewer valve opens is small, and when the sewer valve is closed, air flows through the air inlet duct into the sewer, which reduces the pressure difference acting on the sewer valve.  These measures tend to considerably reduce the noise level.  In the case of a vacuum toilet sewer arrangement, the noise level can be further reduced by providing the toilet bowl with a lid forming a substantially airtight and soundproof closure at the top of the bowl.  The volume of air contained in the bowl may be too small for proper discharge of the sewage, in which case additional air can be provided through a separate tube.  This tube may be connected to the air inlet duct upstream of its valve.
Patent CA-1283636-C (CA)
Title: Unified assembly for control of fluid flow and a liquid dispensing system which includes such an assembly
Inventor: RUTTY BRIAN R
IPC: B67D1/12
Filed: 1988-04-26
Granted: 1991-04-30
Abstract: ABSTRACT A liquid dispensing system and a unified assembly for control of fluid flow in such a system has a container l from which liquid such as beer is drawn by an electrically controlled pump 2 to be supplied through a unified assembly 4 to a dispensing tap 5.   The assembly 4 has an inlet 6 which communicates through a pressure biased non-return valve 8 with a high pressure chamber 9 and an outlet 11 to the tap 5.   A piston 14 responds to high pressure in the chamber 9 to be displaced and pivot a rocking lever 26 to operate a microswitch 28 which is normally closed to operate the pump 2 but is opened in response to said displacement of the piston 14 to deactivate the pump 2.   A 10W pressure chamber 35 communicates with the inlet passage 6 and the pressure of liquid in the system expands the chamber 35 to maintain a plunger 38 against its spring biasing.   Upon entry of froth or foam into the passage 6 the low pressure thereof permits the chamber 35 to contract under the spring biasing of plunger 38 and displacement of the latter pivots the rocking lever 26 to open the microswitch 28 and deactivate the pump 2.   With froth or foam in the passage 6 a normally closed bleed valve 48 is manually displaced to open communication between passage 6 and bleed outlet 47.   Displacement of the valve 48 abuts and displaces the plunger 38 against its spring biasing to relieve pressure of the plunger on the rocking lever 26 so that the microswitch 28 reverts to its normal closed condition to operate pump 2 which can draw liquid from a fresh supply to displace the froth or foam from the passage 6 through the bleed outlet 47 and prime said passage with liquid for further dispensing when the bleed valve 48 reverts to its normal closed condition.
Patent CA-1335332-C (CA)
Inventor: PRICE MALCOLM J
IPC: C01G51/12
Filed: 1988-05-17
Granted: 1995-04-25
Abstract: A process for the separation and recovery of nickel from an ammoniacal ammonium carbonate liquor containing nickel  II  ions  and  cobalt  III  ions  by  liquid-liquid extraction where ammoniacal ammonium carbonate solutions are the  only  aqueous  phases  involved  in  the  process.   The process includes the successive steps of: (a)   oxidising the majority of any cobalt II ammines in the ammoniacal liquid to cobalt III; (b)   extracting nickel from the ammoniacal  liquor with an organic  reagent,  which  reagent  may  also  contain  a suitable modifying reagent,  to form a  nickel  loaded organic phase and an ammoniacal ammonium carbonate phase containing cobalt; (c)   stripping    the    nickel    loaded    organic    phase characterised by contacting the organic phase with an ammoniacal  ammonium  carbonate  solution  to  form  a nickel loaded aqueous strip liquor.
Patent CA-1306829-C (CA)
Title: Process for the production of formed article of aromatic vinyl resin
Inventor: MORITANI MASAHIKO
IPC: C08F20/10
Filed: 1988-06-13
Granted: 1992-08-25
Abstract: Abstract:        A process for the production of formed articles of aromatic vinyl resin having a small birefringence and a high refractive index by rapid and productive cast polymerization.          The formed articles of aromatic vinyl resin being light and useful for the production of various optical elements, e.g. lenses and prisms.
Patent CA-1311584-C (CA)
Title: Cbw protective clothing featuring water resistant activited carbon and abrasionresistant adjoining layers
Inventor: LANGSTON RICHARD D
IPC: A62D5/00
Filed: 1988-06-22
Granted: 1992-12-22
Abstract: ABSTRACT OF THE DISCLOSURE         A composite material suitable for use as CBW protective clothing includes an outer layer of an abrasion-resistant, water-repellent material; an intermediate layer of activated charcoal cloth treated to provide liquid-repellency; and an inner layer of an abrasion-resistant material laminated to the intermediate layer.  The composite is lightweight breathable and has low thermal insulation properties, but provides good chemical protection.
Patent CA-1297758-C (CA)
Title: Operator station emergency visual assurance method and apparatus
Inventor: WERJEFELT BERTIL
IPC: B64D11/00
Filed: 1988-07-19
Granted: 1992-03-24
Abstract: ABSTRACT OF THE DISCLOSURE         The invention includes an operator station emergency visual assurance system for providing the operator with substantially uninterrupted access to operationally necessary visual information under emergency conditions of a progressive invasion by heavy smoke and/or particulate matter toward and/or into the space between the source of said visual information and the operator.  The system includes a station with a source of visual information.  An operator position is provided spaced from said source of visual information with positionable means for providing a clear path of visibility between said source of visual information and the operator when in the operator position, when the positionable means is positioned between the source of visual information and the operator.  The invention also includes the method of utilizing the system.
Patent CA-1320680-C (CA)
Title: Cementing method and arrangement
Inventor: BRADDICK BRITT O
IPC: E21B33/16
Filed: 1988-08-04
Granted: 1993-07-27
Abstract: CEMENTING METHOD AND ARRANGEMENT     ABSTRACT    An operating string (O) is provided for conducting cementing operations in a well bore.         The operating string (O) is shown sealably and releasably connected with a liner (L) and extends through upper liner wiper means (45) and terminates in overlapping relationship to lower liner wiper means (26), both of which wiper means (26 and 45) are releasably secured to the operating string (O) with the lower liner wiper means (26) releasably secured below the upper liner wiper means (45) so that its bore (28a) originates adjacent and extends away from the lower end of the upper liner wiper means (45).         The operating string (O) includes positioning means (H) to hang the liner (L) on the well bore casing (C), and means (145, 146 and 148) to rotate and reciprocate the liner (L) before hanging it and/or to rotate the liner (L) during and after cementing.  The hanger means (H) includes rows (90a, 91a') of cone segments (16a, 17a) and rows (18, 19) of slip segments (18a, 19a) with sleeve (S') supporting the cone segments (16a, 17a) with sleeve (S") supporting the slip segments (18a, 19a) with at least one sleeve movable longitudinally for simultaneously setting all hangers on the casing (C).
Patent CA-1308274-C (CA)
Inventor: LOEFFLER JOHN M
IPC: F16H37/04
Filed: 1988-08-29
Granted: 1992-10-06
Abstract: ABSTRACT OF THE DISCLOSURE        A multi-speed transmission having a main section for providing a plurality of gear ratios and a range section for selectively mulitplying a gear ratio provided by the main section in which the reverse idler gear is not located on a separate idler shaft.   The reverse idler gear is mounted on the range countershaft. This is made possible by overlapping  or  rotating  the  plane  containing  the  main countershaft and main shaft with respect to the plane containing the range countershaft and the main shaft.  The reverse idler gears are positioned to be driven by a set of gears on the main countershafts and they drive a gear on the main shaft. The same relationship exists for a multiple countershaft transmission with a reverse idler gear on each range countershaft.
Patent CA-1333845-C (CA)
Inventor: PARKER MARK G
IPC: A43B13/20
Filed: 1988-08-30
Granted: 1995-01-10
Abstract: Footwear having an improved cushioning sole structure is disclosed.   The footwear includes an upper and a sole member attached to the upper.   The sole member includes a sealed inner member of a flexible material which is inflated with a  gaseous medium to  form a compliant  and  resilient insert.   An elastomeric yieldable outer member encapsulates the insert about preselected portions of the insert.   The inner  and  outer  members  function  together  to  form  a viscoelastic unit for attenuating the shock and returning the energy of foot  impact.    A mechanism adjusts  the  impact response  of the  unit  so  that  the  effect  of  the  insert dominates  the impact response function in a predetermined area adjacent at least one side of the insert.  The adjusting mechanism includes a gap in the outer member along the side of the insert adjacent the predetermined area so that the flexible material of the sealed inner member can flex in the gap during foot impact.
Patent CA-1336577-C (CA)
Inventor: GORDON JULIAN
IPC: G01N33/576
Filed: 1988-09-09
Granted: 1995-08-08
Abstract: The present invention relates to improved specific binding assay devices comprising a chromato-graphic medium including a reaction site at which a specific binding reagent is immobilized, a sample application means located adjacent to said chromato-graphic medium and offset upstream from said reaction site, and a liquid absorption means offset downstream from said reaction site.
Patent CA-1291277-C (CA)
Title: Encapsulated thermal protector
Inventor: ANTONAS ADAMANTIOS
IPC: H01H85/00
Filed: 1988-09-12
Granted: 1991-10-22
Abstract: ENCAPSULATED THERMAL PROTECTOR   (Abstract of the Disclosure) A thermal protector encapsulated in an inner layer of energy-absorbing material and an outer layer of stretchable elastomeric material.  The inner and outer layers inhibit an exploding thermal protector from starting a fire.
Patent CA-1299703-C (CA)
Title: Control system for an endless belt conveyor train
Inventor: WINKEL GORDON R
IPC: B65G43/00
Filed: 1988-09-21
Granted: 1992-04-28
Abstract: "CONTROL SYSTEM FOR AN ENDLESS BELT CONVEYOR TRAIN"      ABSTRACT OF THE DISCLOSURE         A system is provided for controlling the feed rate of material being loaded onto a conveyor train of variable configuration to prevent overloading.   The system involves monitoring the power drawn by the various drive motors of the train to establish which is the limiting conveyor under prevailing operating conditions.  The instantaneous weight of feed material loaded onto the conveyor train, at its input end, is continuously measured and the current average feed rate is computed from the instantaneous weights measured over a pre-set time interval.  A rolling average of the total load to be carried by the limiting conveyor downstream is computed from the average feed rate, taking into account the length of the limiting conveyor.   The feed rate is then adjusted in response to the computed rolling average to thereby avoid overloading the limiting conveyor and optimize loading of the conveyor train.
Patent CA-1317904-C (CA)
Title: Mobile aerial rapid rescue system
Inventor: SMITH FLINT K
IPC: A62B1/14
Filed: 1988-09-27
Granted: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE        A rescue device for use in traversing a cable of an aerial transportation system, the rescue device including a frame carried by a pair of wheels for movement along the cable, the frame including a portion extending below the cable, and a lever arm having opposite ends and being pivotally connected intermediate its opposite ends to the downwardly extending portion of the frame.  A suspension device such as a harness is attached to one end of the lever arm and is intended to support the rescuer.  A brake pad or shoe is mounted on the opposite end of the lever arm and is positioned below the cable.  The weight of the rescuer on the harness functions to cause engagement of the brake pad with the cable.  A brake control lever projects from the end of the lever arm supporting the brake pad and is pulled downwardly by the rescuer to control the force of the brake pad against the cable.
Patent CA-1334684-C (CA)
Title: Computer input device using an orientation sensor
Inventor: DRUMM DONALD E
IPC: G06F3/042
Filed: 1988-10-13
Granted: 1995-03-07
Abstract: A hand-held device for controlling cursor movement on a data terminal having a display.  An internal orientation sensor provides an electrical signal that is related to the orientation of the device without it being adjacent to any fixed surface.  The orientation sensor includes a hollow spherical housing having at least one LED and one phototransistor mounted opposingly in the inner wall, along an axis extending through the center point of the housing.  The housing is half-filled with a transparent liquid having a specified viscosity and index of refraction and half-filled with air.  A light beam emitted from the LED is refracted upon passing through the boundary between the air and the liquid. As the orientation sensor rotates with respect to the vertical axis, the changing refraction angle of the light beam causes the phototransistor to detect changing intensities of light, which are representative of the angle of rotation.
Patent CA-1299300-C (CA)
Title: Apparatus and method for measuring bulk density using position scatteringand annihilation
Inventor: BLATCHLEY CHARLES C
IPC: G01N23/12
Filed: 1988-10-18
Granted: 1992-04-21
Abstract: A device for monitoring the bulk density and/or mass flow rate of a material within a vessel using positron scattering and annihilation radiometry techniques. The positron source is disposed on one side of the vessel having walls while an annihilation region preferably forming a portion of the vessel walls is disposed on the other side of the vessel. A gamma ray detector disposed externally of the vessel and collimated from the positron source detects the absorption of the positrons within the annihilation region. Monitoring the number of positrons absorbed within the annihilation region facilitates estimating bulk density and mass flow rates.
Patent CA-1323191-C (CA)
Inventor: FALZON ALFRED
IPC: A01M23/26
Filed: 1988-10-19
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE     A humane animal trap is provided and includes a pair of cushions which can be scented for attracting an animal that are removably attached to inner faces of the trap jaws to prevent injury to jaws of the animal when closed upon the same.  A spoon shaped bait-receiving member is also provided so that liquid bait or a solid bait can be used for attracting the animal to trigger the trap.
Patent CA-1309751-C (CA)
Inventor: KEARNS JOYCE M
IPC: H05B6/80
Filed: 1988-10-19
Granted: 1992-11-03
Abstract: MICROWAVE COOKING                       ABSTRACT   The invention relates to a method of cooking or reheatinq a comestible with microwave energy by utilizing a double-boiler cooking utensil.  The double-boiler utensil contains a microwave susceptible liquid within an outer vessel and a cooking oil or fat within an inner vessel with the inner vessel providing conductive heat transfer between the microwave susceptible liquid and the cooking oil or fat.  The process involves placing a comestible in the cooking oil or fat within the inner vessel and irradiating the cooking utensil containing the comestible for a period of time effective to cook the comestible.  The microwave susceptible liquid when subjected to microwave energy functions to transfer sufficient heat to the cooking oil or fat to maintain a temperature on the surface of the comestible within the range of from 125°C to 225°C.
Patent CA-1288396-C (CA)
Title: Apparatus and method of dispensing particulate ice and cold beverage with irreversible separation of cooling ice
Inventor: JOSTEN MARVIN A
IPC: B67D1/08
Filed: 1988-10-21
Granted: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE          A method of and apparatus for dispensing both particulate ice and cold beverage wherein a common supply of ice is Used firstly for dispensing and then secondly for cooling of the beverage.  A pair of co-axial rotors are co-rotated about a common vertical axis by a single motor, the upper rotor dispenses particulate ice off of an annular upper bottom.          All ice that falls through the open center of the upper bottom irreversibly falls down upon a  cold plate and the lower rotor moves the fallen cooling ice on the cold plate for enhanced cooling.