baber/WOPTO huggingface dataset:
Patent CA-2215620-C (CA)
Title: Conducting handoff of a data transmission
Inventor: LADDEN GREGORY C
IPC: H04W88/16
Filed: 1996-11-26
Granted: 2002-01-01
Abstract: During a wireless communication of data in which modems (21, 24) are in use, a method of handing off the communication link (32) is described. The communication link (32) is handed off from a source base site (22) to a target base site (23). An interworking function (33) is then transfered from a source interworking unit (25) to a target interworking unit (26) by transfering protocol status (42) such as transmission control protocol. A cut over (34) from the source modem (21) to a target modem (24) is conducted once the interworking function (33) is transfered.
Patent CA-2221058-C (CA)
Inventor: MOSDAL BRIAN THOMAS
IPC: A01B59/00
Filed: 1997-12-03
Granted: 2001-02-20
Abstract: A toolbar bracket assembly for mounting an agricultural rig or row unit on different toolbars includes a bracket having a pair of upright fore-and-aft extending plates with stepped cutouts or notches defining at least two toolbar-receiving areas of different sizes. The plates are supported in parallel relationship by a transversely extending upright connecting plate which is apertured to receive U-bolts or the bolts of a strap assembly which conform to the dimensions of the toolbar. A larger notched area is defined for embracing a portion of a toolbar of first cross section. A second smaller notched area is defined at a location centered with respect to the larger area for embracing a portion of a toolbar with a smaller cross section. The bracket can be attached to either toolbar by simply using a correctly sized U-bolt or a bolt and strap assembly.
Patent CA-2223156-C (CA)
Title: Brush seal with a core ring wrapped by bristle bundles
Inventor: MAYR ALFRED
IPC: F16J15/3288
Filed: 1997-03-20
Granted: 2005-11-01
Abstract: A brush for sealing a gap between a rotor/stator system comprises a rotor-concentric clamping ring whose interior chamber receives bristle bundles that project into gap. The bundles are wrapped around core ring that extends into the interior of clamping ring. The core ring has separating disks that are spaced apart from one another in the circumferential direction by an angular pitch .alpha., and by winding ribs that are wrapped by the bundles. The winding ribs connect adjacent separating disks in such fashion that as a result of the diagonal positioning of separating disks in the circumferential direction, bundles are aligned at an angle .beta. to radius R. This makes it possible to hold bristle bundles securely with a predetermined angular orientation.
Patent CA-2225092-C (CA)
Title: Cementitious compositions and their uses
Inventor: ASBRIDGE ANTHONY HALES
IPC: C04B28/14
Filed: 1997-12-18
Granted: 2003-03-25
Abstract: A composition suitable for adding to water to produce a water-resistant hydraulic solid which composition  comprises components (a), (b) and (c) as follows: (a) calcium sulphate hemihydrate, (b) portland cement; (c) calcined clay having a pozzolamic activity; wherein the percentages by weight of components (a), (b) and (c) in the said composition are in the respective ranges: (a) from 20% to 98%; (b) from 1% to 5%; (c) from 1% to 30%; the percentages of components (a), and (b) and (c) adding to 100% in the three component composition.
Patent CA-2229164-C (CA)
Inventor: KEYES THOMAS C
IPC: B41J13/00
Filed: 1998-02-06
Granted: 2002-04-16
Abstract: In a disk type sheet inverting and stacking system with rotatable disk units with sheet transporting slots, in which printed sheets outputted by a reproduction system are sequentially fed into those slots to be inverted by rotation of the disk units and then released from the slots at a stacking position, the sheet transporting slots of said disk units are provided with a convolute sheet path formed by plural internal sheet corrugating protuberances extending transversely across the slot from opposite sides of the slot, spaced along the slot, to form a convolute sheet corrugating sheet path within the slot to automatically increase the retention force of the sheet within the slot in proportion to an increase in the thickness or stiffness of the sheet, without substantially increasing the resistance to lateral movement of the sheet within the slot. These protuberances have smoothly arcuate large diameter surfaces, with small surface angles in the direction of sheet insertion, to provide relatively low resistance to the insertion of a sheet into the slots.
Patent CA-2231906-C (CA)
Title: Hydrogen manufacturing apparatus
Inventor: KOGA MINORU
IPC: C01B3/48
Filed: 1998-03-12
Granted: 2009-08-25
Abstract: A hydrogen manufacturing apparatus is equipped with a plate type high- temperature shift converter (II) which has a shift reaction chamber (7) which is filled with a high-temperature shift catalyst (8) and into which a reformed gas is introduced, a cooling chamber (9) which is filled with a filler (10) for promoting heat transfer and into which a cooling gas is introduced, and a partition (6) for separating the shift reaction chamber and the cooling chamber. The shift converter has a plurality of partition, shift reaction chambers, cooling chambers and hydrogen gas chambers. Two adjoining shift reaction chambers are disposed so that they are opposed to one another. The shift reaction chamber has a hydrogen gas chamber (11) separated by a plate type partition (12), and the partition is composed of a porous plate (14) and a hydrogen permeable film (13) which is coated or plated thereon and which lets only hydrogen gas permeate therethrough. This causes only the hydrogen, which has been generated by subjecting a reformed gas to the shift reaction in the shift reaction chamber, to permeate the hydrogen permeable film and flow out into the hydrogen gas chamber.
Patent CA-2232210-C (CA)
Inventor: GAYHART JON W
IPC: A47B3/00
Filed: 1998-04-22
Granted: 2002-03-19
Abstract: A folding table leg apparatus for a table including one or more legs operable between an extended and a folded position. The folding table leg apparatus associated with each of the legs includes a pair of side supports which are connected to the underside of the table top. Each of the side supports includes a receiving notch which receives a cross bar connected to the upper end of the table leg when the table leg is in the extended position. A hinge bracket and a folding plate are connected between the pair of side supports and the table leg to permit the table leg to move between the folded and extended position. The table leg is pivotable about a lower leg pivot axis which is spaced from the upper end of the table leg, such that when the table leg is in the folded position, the distance which the table leg extends from the folding apparatus is less than the entire length of the table leg.  The folding apparatus further includes a locking mechanism that secures the cross bar in the receiving notches when the table leg is in the extended position. The locking mechanism includes a pair of locking brackets joined by a connecting rod such that the locking brackets are operatively joined. As the folding table leg moves from the folded position to the extended position, the cross bar interacts with a cam surface on each of the locking brackets to rotate the locking brackets away from the receiving notches thereby allowing the cross bar to be received in the receiving notches formed in the side supports. A torsion spring holds the locking brackets in a locked position to securely hold the cross bar in the receiving notches when the table leg is in its extended position.
Patent CA-2236990-C (CA)
Title: Device for preventing bolt from slipping off
Inventor: KOJIMA TETSUYA
IPC: F15B13/00
Filed: 1998-05-07
Granted: 2004-10-26
Abstract: An annular recess is formed in an inner periphery defining a bolt shank bore and has fitted therein an annular elastic member having elasticity radially thereof and having an inside diameter smaller than the outside diameter of the shank of a bolt. The shank bore has at an intermediate part thereof a stepped portion so as to give an increased diameter to a bore portion from the intermediate part to one end of the bore, and a hollow cylindrical member for preventing the elastic member from slipping out is inserted in the shank bore from the bore end so as to form a clearance between the stepped portion and the preventing member, whereby the annular recess is formed.
Patent CA-2240383-C (CA)
Title: Pre-assembled manifold fastener system and method therefor
Inventor: VAN BOVEN ALBERT W
IPC: F02F1/24
Filed: 1998-06-11
Granted: 2002-08-20
Abstract: A pre-assembled workpiece fastenable to a mounting surface of a second workpiece, and in one application a pre-assembled plastic component fastenable to a metal automotive engine component. The pre-assembled workpiece includes an opening extending therethrough between an outer surface and a mounting surface thereof. A sleeve member is retainably disposed in the opening through the pre-assembled workpiece, and a fastener having a threaded shank portion and a head is retainably disposed through the sleeve member. The fastener is axially and laterally positionable relative to the pre-assembled workpiece, whereby the pre-assembled workpiece is mountable and alignable on the mounting surface of the second workpiece without interference from the fastener. The sleeve member includes a resilient first substantially radial flange member, whereby the sleeve member is axially positionable relative to the opening through the pre-assembled workpiece upon fastening the pre-assembled workpiece to the second workpiece to compensate for misalignment tolerance and thermal expansion of the pre-assembled workpiece.
Patent CA-2243027-C (CA)
Inventor: WATSON PAUL JOHN
IPC: F16B7/04
Filed: 1998-07-10
Granted: 2008-01-15
Abstract: A connector device for securing an additional rigid member, such as a rod or tube, to a rigid member of an existing assembly of rigid members comprises a body having a first region for securing relative to an end of a first rigid member and a second region adapted to cooperate with another add-on type connector device to embrace a part of a second rigid member and form a structural interconnection between the rigid members, the first region of the body having a major axis which is substantially aligned relative to the length direction of at least an end portion of said first rigid member and the second region having an end zone which at least in part lies substantially obliquely relative to said major axis and provides a recess which locates part of the second rigid member.
Patent CA-2249263-C (CA)
Inventor: OBERMOSER KARL
IPC: F04F7/02
Filed: 1997-04-16
Granted: 2003-08-19
Abstract: The invention relates to a hydraulic ram pump, comprising: a propulsion water line fed with propulsion water (at 30), a delivery line (at 32) which can be connected to delivery water via a bottom valve (4), a ram pump valve (3) which is connected to the propulsion water line (1) and delivery line (2), the propulsion water flowing into the delivery line when the ram pump valve (3) is open and, after the closing of the ram pump valve, the water column flowing further in the delivery line sucking in delivery water via the bottom valve (4), the ram pump valve (3) being held by spring force in its closed position separating the propulsion water line from the delivery line, and a pressure reservoir (5) being provided, which is connected to the propulsion water line upstream of the ram pump valve (3) in the direction of flow, the valve member (4a) being of annular design, axially movable and tightly connected to the delivery line, the effective cross section of this connection being larger than the cross section of the valve seat, and the valve seat (6) of the ram pump valve (3) and the valve seat (4a) of the bottom valve being mechanically coupled in order to transmit kinetic energy.
Patent CA-2249376-C (CA)
Inventor: SUGIMOTO MICHIHISA
IPC: B06B1/16
Filed: 1997-03-21
Granted: 2006-02-14
Abstract: An oral hygiene device comprises a rotating body 22 mounted to a rotating shaft 21 of an electric motor 14, an output shaft 11 resiliently supported via a resonance pin 25 to be swingable finely, a drive magnetic body 23 provided on the rotating body 22, and a driven magnetic body 31 provided on the output shaft 11 to face the drive magnetic body 23 so as to be out of contact therewith. The drive magnetic body 23 and the driven magnetic body 31 are composed of permanent magnets, and as the rotating body 22 revolves, a varying magnetic field is generated between the both magnetic bodies 23, 31 to cause vibration of the output shaft 11 at high speed. In this manner, there are provided a vibration generating device, which can be manufactured at low cost and efficiently transmits vibration, and an oral hygiene device using the same.
Patent CA-2250434-C (CA)
Title: Microwave oven heating element having broken loops
Inventor: LAI LAWRENCE
IPC: B65D81/34
Filed: 1998-01-29
Granted: 2002-11-26
Abstract: A microwave energy heating element (37) has a plurality of spaced microwave components generally arranged in a closed loop pattern. Each of the microwave components (42, 44) has a non-resonant length. When the heating element (37) is in a loaded condition with a load juxtaposed thereto for capacitively coupling the microwave components (42, 44) together, the microwave components (42, 44) cooperatively redistribute impinging microwave energy. When the heating element (37) is in an unloaded condition, the microwave components (42, 44) act independently, remaining generally inert to impinging microwave energy.
Patent CA-2257259-C (CA)
Title: Method and apparatus of preserving power of a remote unit in a dispatch system
Inventor: YAO YU-DONG
IPC: H04B1/16
Filed: 1997-06-06
Granted: 2007-01-02
Abstract: To reduce the power consumption of a remote unit in a dispatch system the remote unit enters a dormant state. A base station (32) transmits a forward link broadcast signal and monitors a common access channel. A first remote unit (10) continually receives and decodes the forward link broadcast signal and determines whether said forward link broadcast signal comprises active signals (106). If the remote unit determines that the forward link broadcast signal comprises no active signals for some a duration T1, the first remote unit enters a dormant mode (148). In the dormant mode the remote unit sporadically receives and decodes said forward link broadcast signal. If this remote unit or any other remote unit on the same net presses a push to talk button (128, 130), it transmits a message on the common access channel. In response, every remote unit on the net which is in a dormant state exits the dormant state and continually monitors the forward link broadcast signal.
Patent CA-2261245-C (CA)
Title: Division circuit and graphic display processing apparatus
Inventor: MITSUSHITA TATSUMI
IPC: G06F7/483
Filed: 1999-02-08
Granted: 2012-07-03
Abstract: A division circuit which can shorten a critical path for division and can perform the division at a high speed, provided with a 1's complement processor for outputting a complement of 1 of a divisor when the divisor is negative; an adder for adding "1" to the output from the complement processor and making the result of addition an absolute value; a priority encoder for calculating a logarithmic value comprised of an integer value of a logarithm of 2 of the value output from the 1's complement processor, a shift processor for shifting the absolute value in accordance with the logarithmic value, making the shift processing value a mantissa when the MSB of the shift processing value is "1", and making the shift processing value with an MSB replaced by "1" the mantissa when the MSB of the shift processing value is "0", and a subtractor for determining the shift amount in response to the MSB of the shift processing value of the shift processor.
Patent CA-2263396-C (CA)
Inventor: BARRETT PATRICK H
IPC: B60C23/00
Filed: 1999-02-25
Granted: 2004-01-06
Abstract: A tire pressure and temperature measurement system adapts a Y-block (30) to an existing valve stem (20). One branch (44) of the Y-block accepts a conventional valve core (42) and another branch (38) accepts a flexible tubular temperature sensor (36) that leads "down the throat" of the existing valve stem and into the interior of a tire (14, 18). Another embodiment is adapted for use on inside dual tires (18). Making a measurement entails attaching a pressure sensor (40) to the valve stem and attaching a hand-held processor (112) to the sensors. The hand-held processor reads the current tire pressure and temperature; executes a program (Eqs. 1-6) that accounts for measured and target temperatures, vapor pressures, and gas compressibility; and indicates how much pressure to add or subtract to the tire to achieve an accurate final tire.operating pressure. In yet another embodiment, a spherical protective housing (70) enclosing pressure and temperature sensors (72), a controller 76, and a data transceiver (74) is loosely placed within the interior of a tire when it is mounted to a rim. A remote measurement system (80) receives at another data transceiver (108) pressure and temperature data transmitted from inside the tire while the vehicle is moving and conveys the data to a processor (112) for executing the above-described program.
Patent CA-2265607-C (CA)
Inventor: GOBEL FRED G
IPC: A61F2/958
Filed: 1997-09-10
Granted: 2002-07-02
Abstract: The invention is based on the intention of creating a stomach probe with Whi ch a watertight closure of the oesophagus is possible. The stomach probe, according to the invention , is characterized by a tampon-bladder for watertight closure of the oesophagus, in which the tamp on- bladder forms from flexible and/or elastic material at least a closed inner cavity for the  reception of a fluid medium, through a means (11) of establishing a prescribed pressure for the medium in the tampon-bladder (16) by an inner lumen forming the actual stomach probe, from  which an outer hose-like lumen (18) extending to the tampon-bladder (16) is so arranged tha t between the outer lumen (18) and the inner lumen (17) a channel is formed connected to the inn er cavity of the tampon-bladder (16) arranged on the outer lumen (18) by a number of openings  (20), whereby the inner cavity of the tampon-bladder (16) is connected via the canal formed between the inner and outer lumina (17, 18) with the means of production of pressure in the tampon - bladder, that is, with a suitably graded reservoir or equalizing vessel (11) for the liquid medium situated above the tampon-bladder and outside the patient.
Patent CA-2267390-C (CA)
Title: Procede servant a determiner sans ambiguite une position au moyen de deux satellites sur orbite basse terrestre et systeme mettant en application ce procede
Inventor: VEMBU SRIDHAR
IPC: H04W84/06
Filed: 1997-09-26
Granted: 2004-10-19
Abstract: Système et procédé servant à déterminer sans ambiguïté la position d'un terminal d'abonné (par exemple, un téléphone mobile sans fil) dans un système de télécommunications (100) par satellites sur orbite basse terrestre. Ce système comprend un terminal d'abonné (106), au moins deux satellites (104A, 104B) dont les positions et les vitesses sont connues, et une passerelle (102) (c'est-à-dire une station de base terrestre) servant à communiquer avec le terminal d'abonné (106) par l'intermédiaire des satellites (104A, 104B). Ce procédé consiste à déterminer un paramètre de distance (1002, 1102, 1202), un paramètre de différence de distance (1004, 1104, 1204), ainsi que l'un ou l'autre ou les deux d'un paramètre de vitesse et de distance (1106, 1206) et d'un paramètre de différence de vitesse et de distance (1008, 1208). Le paramètre de distance représente une distance entre un des satellites (104A, 104B) et le terminal d'abonné (106). Le paramètre de différence de distance représente la différence entre (1) la distance entre un premier des satellites (104A, 104B) et le terminal d'abonné (106) et (2) la distance entre un deuxième des satellites (104A, 104B) et le terminal d'abonné (106). Le paramètre de vitesse et de distance représente une vitesse radiale relative entre un des satellites (104A, 104B) et le terminal d'abonné (106). Le paramètre de différence de vitesse et de distance représente la différence entre (a) une vitesse radiale relative entre un premier des satellites (104A, 104B) et le terminal d'abonné (106) et (b) une vitesse radiale relative entre un deuxième des satellites (104A, 104B) et le terminal d'abonné (106). On détermine ensuite la position du terminal d'abonné (106) sur la surface terrestre en fonction des positions connues et des vitesses connues des satellites (104, A, 104B), du paramètre de distance, du paramètre de différence de distance, et de l'un ou de l'autre ou des deux du paramètre de vitesse et de distance et du paramètre de différence de vitesse et de distance.
Patent CA-2270682-C (CA)
Inventor: BERGAMASCHI GIOVANNI
IPC: E06B9/80
Filed: 1999-05-04
Granted: 2007-08-14
Abstract: A mechanism for locking curtains and the like includes a sleeve rotating about a relative axis and fastened to a roll, in coaxial relation therewith. A curtain is rolled up on the roll. A barrel (6) features at least one radial housing (8) opening outside of the barrel (6) and enters freely the sleeve (3). The mechanism includes also one spring (8a) introduced freely in each radial housing (8) and pushing a cylinder or a sphere (7) against an inner surface (3d) of the sleeve (3).
Patent CA-2271835-C (CA)
Title: Repeater for executing a packet routing process
Inventor: NAGAMI KENICHI
IPC: H04L12/773
Filed: 1998-09-17
Granted: 2004-03-30
Abstract: The present. invention aims ate making the cut-through trigger variable in accordance with the traffic environment, thereby increasing the cut-through traffic to enhance the efficiency of communication. In the trigger filtering unit (16A), the number of transfers of the hop-by-hop packet meeting each of a plurality of preset trigger conditions is counted. In the processor (15A), the rate of the traffic meeting each of trigger conditions to all the traffics of the hop-by-hop transfer is calculated in accordance with the count value, a trigger condition under which the rate exceeds the threshold value is selected as the cut-through trigger, and it is determined which of the but-through transfer mode and the hop-by-hop transfer mode should be selected.
Patent CA-2272264-C (CA)
Inventor: COUNTERMAN WAYNE S
IPC: F28D19/04
Filed: 1997-10-14
Granted: 2004-01-06
Abstract: A heat transfer element (40) for a rotary regenerative preheater (10) has first and second heat transfer plates (50). The first heat transfer plate (50) defines a plurality of generally equidistantly laterally spaced apart parallel straight notches (52). Each notch (52) has adjacent double ridges (53) extending transversely from opposite sides of the first heat transfer plate (50). Undulations (56) extend between the notches (52). The second heat transfer plate (50) is adjacent the first heat transfer plate (50) and defines a plurality of generally equidistantly laterally spaced apart parallel straight flat sections (54). Undulations (56) extend between the flat sections (54) and the flat sections (54) are spaced apart a distance generally equal to the lateral spacing of the notches (52). The notches (52) of the first heat transfer plate (50) are in contact with the flat sections (54) of the second heat transfer plate (50) to define channels (58) therebetween.