baber/WOPTO huggingface dataset:
Patent CA-2242247-A1 (CA)
Title: Method and apparatus for transfer of initiation signals
Inventor: SUTULA DANIEL P JR
IPC: F42D1/04
Filed: 1996-12-03
Abstract: A method and apparatus for transferring non-electric blasting initiation signals from detonating cord signal donor lines to signal transmission tube input lines involves disposing the acceptor line in enhanced signal transfer configuration with the donor line. The input line (30) may constitute the input lead (29a) of a detonator (10a). Enhanced signal transfer configuration between the input lead (29a) and the detonating cord (60) can be established by disposing input line (30) in at least partial wrap-around contact with the detonating cord (60). or in multiple abutting contact with the detonating cord (60).      Enhanced signal transfer configuration can also be achieved for a detonator having at least two input lines in abutting contact with the detonating cord. A slider (44) is designed to extend contact between a detonator input lead and a detonating cord. The slider (44) provides a detonator retainer (48) for holding a detonator (10a) and a base fixture (74') that includes a pass-through aperture (58a) for a detonating cord (62). Input lead-retaining means (52) on the base fixture (74') disposes the input lead (29a) in position for enhanced signal transfer configuration with a detonating cord that may extend through the pass-through aperture (58a).
Patent CA-2243285-A1 (CA)
Title: Multiaxis rotational molding method, apparatus and structure
Inventor: PAYNE LEROY
IPC: B29C41/22
Filed: 1996-09-26
Abstract: Multiaxis rotational molding apparatus (11) includes a plurality of spaced generally horizontally oriented arm members (17-20) each having one end (21) extending from an upstanding frame section (22) with one mold assembly (32-35) rotatably mounted adjacent a free end thereof. Each mold assembly includes a plurality of separable mold sections (36) including plate sections (38). A  plurality of movable elongated mixing chambers (47-49), each including a plurality of adjacent axially aligned rotatable driven mixing sections (52-54). A control portion (15) includes an indexing mechanism (67, 68) sequentially orienting a dispenser of each mixing chamber with each mold assembly to control formation of molded structures continuously in a preselected multiaxis molding profile. Also, a method of forming molded structures with the molding apparatus is disclosed.
Patent CA-2243952-A1 (CA)
Title: Use of a buried flexible pipeline
Inventor: KODAISSI ELIE
IPC: F16L11/08
Filed: 1996-12-24
Abstract: The use of a buried or covered flexible seabed pipeline for transporting fluids is disclosed. The pipeline comprises a sealing barrier (3) and reinforcing layers (4, 5) capable of .withstanding mechanical stress and arranged around said sealing barrier. The reinforcing layers consist of at least two crosswise-arranged reinforcing plies (4, 5) of wires helically wound at respective winding angles a~ to the longitudinal axis of the pipeline, such that they comply with the following relationships: when i = 1, 2 , . . . , 52° <= a~ <= 58° The arithmetic mean a m of said winding angles a i complies with the following relationship . 53° <=a m <= 57°
Patent CA-2245328-A1 (CA)
Inventor: THOMPSON DAVID MILTON
IPC: G04G15/00
Filed: 1998-09-08
Abstract: A time-locked cigarette case has time-controlled locking mechanism which is manually adjustable by the user and also has a first latch rod which normally retains the case in a closed condition and a second latch rod which moves to retain the case in a closed condition if the first latch rod is jolted to an open position so as to prevent the case from being opened by jolting before the manually set time delay has expired.
Patent CA-2246183-A1 (CA)
Title: Radiant heating system reset control
Inventor: MICHAUD ROGER P
IPC: F24D19/10
Filed: 1998-08-31
Abstract: A control unit and a related method of operation for controlling the temperature of the water circulated in the radiant loop of a hydronic heating system. The control unit includes temperature setting dials that can be used to adjusts the reset curve used to determine the desired secondary, radiant loop water temperature.  The control unit generates a linear reset curve between two setpoints such that the control unit can calculate a desired secondary loop water temperature based on the reset curve and the present outdoor air temperature. The control unit monitors the temperature of the water returning to the boiler from both the primary loop and the secondary, radiant loop. The control unit monitors the return water temperature over a first interval and, based on the rate of change in the return water temperature, calculates a predicted return water temperature at a second interval in the future. If the predicted return water temperature is lower than the user-selected minimum return water temperature, the control unit operates the modulating valve to reduce the amount of heated water flowing to the secondary, radiant loop.
Patent CA-2247642-A1 (CA)
Inventor: ROEKER DAVID C
IPC: B24B23/00
Filed: 1996-07-16
Abstract: A back-up pad for supporting and releasably engaging an abrasive article. The back-up pad comprises: a body including a front surface and a back surface in which the front surface comprises a first attachment component thereon and the back surface comprises a second attachment component thereon, and each of the attachment components is adapted for releasable engagement with an abrasive article; a reinforcing plate located within the body between the front surface and the back surface; and tool securing means on the body for securing the back-up pad to a power tool and for selectively orienting the back-up pad in one of a first orientation and a second orientation. When the back-up pad is in the first orientation, substantially the entire front surface is exposed for contacting a workpiece, and when the back-up pad is in the second orientation, substantially the entire back surface is exposed for contacting a workpiece.
Patent CA-2248088-A1 (CA)
Title: Apparatus and method for separating blood samples
Inventor: ZINDER OREN
IPC: B04B5/02
Filed: 1997-10-20
Abstract: Red cells are separated from plasma or serum of whole blood by arranging an evacuated tube (2) sealed by a self-sealing stopper (26) above and preferably coaxial with a tube (4) containing a blood sample and sealed by a self-sealing stopper (28). A hollow double ended needle (14) is held by a fixture (6) and is disposed between and coaxial with the tubes (2, 4) and the tubes are placed in the fixture (6) in a vertical position in a centrifuge (84) and rotated about and spaced from an axis parallel to the axis of the tubes and needle. After the red cells are separated from the serum and/or plasma, the tubes (2, 4) are pushed toward one another so that the needle (14) penetrates both stoppers and the serum and/or plasma is drawn into the upper tube (2). The tubes (2, 4) and needle (14) are separated while still being rotated so that the whole blood components are separated as required.
Patent CA-2248531-A1 (CA)
Title: Method and apparatus for preventing water from stagnating in branches of a municipal water sypply system
Inventor: POIRIER BLAIR J
IPC: E03B7/02
Filed: 1998-09-25
Abstract: An installation for connection to a water piping system comprising a water main and at least one branch pipe, for preventing a stagnation of water inside that branch pipe. A pumping unit is connected to first and second openings in the far end of the branch pipe for pumping water samples out of the branch pipe through the first opening, and back into the branch pipe through the second opening. The installation also comprises a conduit extending inside the branch pipe from the second opening to a proximity of the water main. The pumping unit is continually or intermittently operated for sampling a portion of the still or slow moving water at the far end of a branch pipe, and for pumping these water samples near the water main where the water flow inside the pipe is more active. Such circulation of water in a branch pipe prevents the stagnation of water at the far end of the branch pipe. In another aspect, there is provided a method for preventing stagnation of water in a water supply system. The method comprises the steps of extracting water samples from the far end of the branch pipe relative to the water main and pumping the water samples into the near end of the branch pipe through a branch valve and toward the water main.
Patent CA-2248586-A1 (CA)
Inventor: REITZ DAVID B
IPC: A61K31/38
Filed: 1997-03-11
Abstract: L'invention concerne de nouvelles benzothiépines, leurs dérivés et analogues; des compositions pharmaceutiques les contenant; des procédés d'utilisation de ces composés et compositions en médecine, en particulier pour la prophylaxie et le traitement d'états hyperlipidémiques tels que ceux associés à l'athérosclérose ou l'hypercholestérolymie chez les mammifères.
Patent CA-2249005-A1 (CA)
Title: Light and thermally stable polyamide
Inventor: HU HARRY
IPC: C08G69/00
Filed: 1998-10-16
Abstract: A light and thermally stable polyamide having built-in stabilizers is prepared by polymerizing polyamide-forming monomers in the presence of an effective amount of at least one hindered piperidine compound and at least one aliphatic, dicarboxylic acid chain regulating compound.
Patent CA-2250404-A1 (CA)
Title: Vacuum hoisting device having a vertically suspended lifting tube
Inventor: WICEN JAN
IPC: B66C1/02
Filed: 1997-03-26
Abstract: The invention relates to a vacuum hoisting device of the kind having a vertically suspended lifting tube (4), which is extensible and contractible in dependence on the air pressure in the lifting tube, and which at its lower part is provided with a suction device (6) in the shape of one or more suction cups. Up to now a valve at the suction device is used for manoeuvering the suction device, which valve when closed brings a vacuum source (7, 20) to work with a constant suction capacity to decrease the pressure in the lifting tube such that an object (32) to be lifted is attached by the suction after which the lifting tube is contracted such that the object is lifted. To limit the lifting height and to lower and release the object it has been necessary to partially open the valve and permit a restricted inlet of air and at last completely open the valve resulting in a large comsumption of air. According to the invention there is instead a valve (14, 23) arranged to control the suction capacity of the vacuum source in direct dependence of the desired air pressure in the lifting tube (4).
Patent CA-2250444-A1 (CA)
Title: Modular removable core cylinder assembly
Inventor: SHVARTS VLADIMIR
IPC: E05B27/00
Filed: 1998-10-14
Abstract: A removable core cylinder assembly which utilizes a plurality of modular parts to create a key-removable interchangeable core which will fit all existing interchangeable core locks of this kind. The removable core cylinder assembly includes a cylinder shell having an axial bore formed therein, the axial bore having an axial recess formed along an axial length of the axial bore; a cylinder plug rotatably mounted within the cylinder shell and having two stepped portions at the front end, wherein the second stepped portion has a smaller outer diameter and uses the front of the cylinder shell as a bearing surface; a locking tab seated within the axial recess of the cylinder shell, which locks the interchangeable core within the lock housing; a removable face plate which covers the axial recess in the cylinder shell for the locking tab and provides shelter to the head of the cylinder plug and protected from removal from the cylinder shell by two stepped portions of the cylinder plug; and a retainer which holds all the parts together and provides a stop for the key. The provision of the novel locking tab means that the walls of the cylinder shell can be made thicker, and yields a much stronger core. A sidebar can be used by to provide the user with greater security.
Patent CA-2251093-A1 (CA)
Title: Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons
Inventor: SHANKLAND IAN ROBERT
IPC: C08G101/00
Filed: 1997-04-02
Abstract: Azetrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams.
Patent CA-2256772-A1 (CA)
Title: Railroad track collector pan system
Inventor: VINCENT JON RUSS
IPC: E01B19/00
Filed: 1998-12-18
Abstract: In accordance with illustrative embodiments of the invention, a drain basin system for collecting liquids and light solids that are spilled while loading or unloading a rail tank car includes a system of precast concrete pan members. Center pan members which are positioned between the rails have upwardly inclined flanges on their outer sides which extend partly over the plates of the rails, and outside pan members have identical flanges on their inner sides and upstanding walls on their outer sides. A pair of the system of pan members positioned end-to-end are arranged to have a higher elevation at the joint between them so that liquids run toward opposite ends where they enter trench drains either directly or via sealed tubular drains. Flashing strips cover the abutting joints, and also extend along the inclined flanges on opposite sides of each rail and up underneath the sides of the head thereof. In one embodiment, rigid tubes and flexible elastomer seal sleeves provide drain paths in a non-rigid connection.
Patent CA-2256986-A1 (CA)
Title: Hydroxyl-containing ethylene copolymers and fuel oils having an improved lubricating action
Inventor: WILDFANG RAIMUND
IPC: C10L1/18
Filed: 1998-12-23
Abstract: Hydroxyl-containing ethylene copolymers and fuel oils having an improved lubricating action The invention relates to copolymers of ethylene and at least one further olefinically unsaturated comonomer containing one or more hydroxyl groups. The invention furthermore relates to fuel oils comprising middle distillates containing a maximum of 0.5% by weight of sulfur and at least one copolymer of ethylene and at least onefurther olefinically unsaturated comonomer containing one or more hydroxyl groups.
Patent CA-2259839-A1 (CA)
Inventor: WHETSTONE WILLIAM F
IPC: E04F21/22
Filed: 1999-01-18
Abstract: A joinery clip for joining adjacent panels or floor sections that have been positioned in abutting relationship.      The panels and floor sections have grooves or channels formed along and in close proximity to the edges of their bottom surfaces. The joinery clip comprises a body portion, a first flange section extending away from the body portion, and a second flange section spaced from the first flange section and extending away from the body portion. The first and second flange sections each have a barb configured to be received in the channel of one of the adjacent panels or floor sections.      Each of the barbs has a tang portion that prevents ready removal of the barb when received in the channel of one of the adjacent panels or floor sections. The invention is further directed to a method of installing a floor.
Patent CA-2261775-A1 (CA)
Title: Isolated spinach rubisco large subunit n-methyltransferase
Inventor: HOUTZ ROBERT L
IPC: C12N15/54
Filed: 1997-07-28
Abstract: The gene sequence for ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) large subunit (LS) .epsilon.N-methyltransferase (protein methylase III or Rubisco LSMT) from a plant which has a des(methyl) lysyl residue in the LS is disclosed. In addition, the full-length cDNA clones for Rubisco LSMT are disclosed. Transgenic plants and methods of producing same which have the Rubisco LSMT gene inserted into the DNA are also provided. Further, methods of inactivating the enzymatic activity of Rubisco LSMT are also disclosed.
Patent CA-2265403-A1 (CA)
Inventor: KOERFER STEFAN
IPC: D21F1/00
Filed: 1999-03-17
Abstract: This invention provides a simple and secure means of bonding partial lengths of fabric. The invention relates to a length of textile containing structural threads (8, 9, 10, 11) and, when seen in direction of width, consisting at least in part of a plurality of partial lengths (6, 7), which lie next to one another and are bonded together at their edges (12, 13). The invention is characterized in that the partial lengths (6, 7) have portions of thread (14, 15) projecting at their edges (12, 13), which mesh together in an overlapping fashion, and in that at least one connecting thread (16) is placed over the portions of thread (14, 15) and is bonded to the portions of thread (14, 15).      The invention relates furthermore to a process for producing one such textile length.
Patent CA-2265410-A1 (CA)
Inventor: SILENIUS PETRI
IPC: D21H17/67
Filed: 1999-03-12
Abstract: The present invention relates to the use of calcium oxalate as a filler or pigment. In particular described herein is a method of reducing the combustion residue of coated paper or cardboard products by replacing at least a part of the conventional pigments and filler needed for achieving predetermined optical properties with calcium oxalate.
Patent CA-2265638-A1 (CA)
Title: Wall-less animal containment system
Inventor: JANSEN JOHN
IPC: A01K63/00
Filed: 1997-09-12
Abstract: A wall-less animal containment system for non-flying animals. The containment system includes a lower enclosure (24) that defines a generally upward concavity from a center portion (44) to a rim (48) with a wall extending between the center portion (44) and the rim (48). The interior surfaces of the wall are sufficiently smooth to prevent the animals contained therein from gripping onto the wall and climbing out of the lower enclosure (25). A perch is (50",50') is located above the lower enclosure (24) to permit animals in the containment system to perch above the lower enclosure (24). A lower support (36, 120) extends from the lower enclosure (24) and spaces the perch (50", 50') above the lower enclosure (24). The lower support (36, 120) is located so as to be a distance away from the rim (48) of the lower enclosure (24) to prevent an animal from climbing from the support (36, 120) to the rim (48). A lamp assembly (60) which includes a bulb, is located above the perch (50", 50') and is directed downward thereon.
Patent CA-2268538-A1 (CA)
Title: Rotary pulsation device
Inventor: VOLKOV GERMAN ALFREDOVICH
IPC: B01F7/00
Filed: 1996-10-14
Abstract: The present invention pertains to the field of mixing techniques and may be used in the chemical, food-processing and pharmaceutical industries as well as in other industrial fields for performing the dispersion, homogenisation, pasteurisation and sterilisation of liquid media. The present invention may also be used for performing acoustic and chemical reactions at ultrasonic frequencies and for increasing the processing efficiency of circulating liquid media. This invention relates to a rotating pulse apparatus that includes a body (1) comprising a rotor (2) and a stator (4) having surfaces facing each other that bear turbulence-generating members (3, 8). The disc of the rotor (2) is located between the turbulence-generating members (3) and comprises notches and/or perforations (9). This apparatus is fitted with a system (11) for controlling the gap between the rotor (2) and the stator (4). The stator (4) is mounted with a gap relative to the body and further comprises in its central region at least one support point which is located in the region of the rotor rotation axis. The notches and/or perforations of the rotor disc may be formed at the periphery thereof as well as in the concentrically adjacent regions. The turbulence-generating members of the rotor and the stator have a trapezoidal shape, while the central region of the stator comprises tapering through-channels (6) permissive to the processed media. The central region may be made in the shape of a cylindrical or conical wall, while the peripheral region may be made in the shape of a disc or a truncated cone. This apparatus may also include one or several stators having different resilience indexes.
Patent CA-2268877-A1 (CA)
Inventor: FOSTER DONALD D
IPC: B05B11/00
Filed: 1997-10-06
Abstract: A liquid dispenser (20) comprising a dispenser body (22) having a pump mechanism (50) defining a variable volume fluid receiving cavity (116). A  cylindric formation (130), smaller than the fluid receiving cavity (116), is within the cavity (116) and a vent passageway (134) is in fluid communication with the cylindric formation (130). A plunger (132) is reciprocally moveable within the cylindric formation (130) and is configured for moving with the pump mechanism (50) as the pump mechanism (50) is moved between extended and contracted positions. The plunger (132) and cylindric formation (130) are configured such that the vent passageway (134) is in fluid communication with the fluid receiving cavity (116) of the pump mechanism (50) when the pump mechanism (50) is in its contracted position and is configured to block fluid communication between the vent passageway (134) and the fluid receiving cavity (116) when the pump mechanism (50) is in its extended position.
Patent CA-2269261-A1 (CA)
Title: Method of completing long distance pots calls with ip telephony endpoints
Inventor: RAMAMURTHY RAM S
IPC: H04M3/428
Filed: 1999-04-19
Abstract: When a calling party calls a called party on the public-switched telephone network (PSTN), a database common to both the PSTN and an Internet Protocol (IP) network, is accessed to determine whether the called telephone line is currently active on the IP network. That database maintains a record for each user who is currently active on the IP network through an Internet Service Provider (ISP). In addition, each record contains information identifying the particular user logged into the network on that line, an indication whether the telephone line is IP telephony capable, an indication whether that line is currently active on an IP telephony call on an Internet Telephony network (ITN), and the IP telephony feature set subscribed to by the called party on that line. If the telephone line is active, IP telephony capable, currently active on an IP . telephony call on the ITN, and the called party subscribes to a call waiting-on-IP feature, then the incoming call can be forwarded as an IP telephony call to the called telephone line over the ITN. Alternatively, the incoming call can be directed to an alternate destination on either the ITN network or the PSTN, such as a voice mail or message service. If the called party is engaged in a browsing activity and has an IP telephony capability, then the called party is alerted to the incoming telephone call via a message on his terminal. The incoming call is then completed through the ITN to the called party as an Internet telephony call.  If the called party is currently active on the IP network through an ISP, but does not have an IP telephony capability, then the PSTN forwards a message to the ISP, which pushes a message to the called party to inform him or her of the incoming call. The incoming call is then be directed onto the IP network to a messaging service, or on the PSTN to a voicemail service, or to an alternate telephone number, such as a cellular phone, for pickup by the called party.