baber/WOPTO huggingface dataset:
Patent CA-2107151-C (CA)
Title: Intraocular lens with resilient haptics
Inventor: SHERWOOD CHARLES H
IPC: A61F2/14
Filed: 1993-09-28
Granted: 1999-08-31
Abstract: An improved intraocular lens is disclosed with at least one filamentary haptic composed of a continuous matrix material interspersed with a toughening amount of discrete particles of a multistage, sequentially produced elastomeric polymer. An improved process for preparing a single-piece intraocular lens is also disclosed. The process involves preparing a composite lens blank by molding pellets composed of a continuous polymeric material interspersed with particles of a multistage, sequentially produced elastomeric polymer about a central optic lens core so as to produce a single lens blank having a toughened annular region surrounding the central optic region, and then machining at least one filamentary haptic from the toughened annular region to prepare the lens.
Patent CA-2115693-C (CA)
Inventor: NAGANO FUMIKAZU
IPC: H04N1/19
Filed: 1994-02-15
Granted: 2000-04-25
Abstract: Each of even series outputs of a CCD is clamped by a third capacitor and a fifth transistor in a high precise mode of a reader. Each of odd series outputs of the CCD is clamped by a first capacitor and a second transistor. The clamped odd and even series outputs are converted to digital signals by a first AD converter. In a high speed mode of the reader, odd series outputs of the CCD are clamped in a unit of one line period by first and second capacitors and the second transistor. In the high speed mode, even series outputs of the CCD are clamped in the unit of one line period by third and fourth capacitors and a fifth transistor. The clamped odd and even series outputs are respectively converted to digital signals by individual first and second AD converters. In this reader, the high precise mode or the high speed mode can be selected in accordance with necessity.
Patent CA-2123682-C (CA)
Title: An apparatus to automatically position and operate surgical instruments
Inventor: PINTUCCI STEFANO
IPC: A61B90/50
Filed: 1991-11-21
Granted: 2000-08-08
Abstract: An apparatus to automatically position and operate surgical instruments, particularly for refractive keratic surgery, particularly lamellar refractive surgery, comprising means (1) for correctly positionning in correspondence with the operating cot; means (2) for verticlaly raising all the apparatus; a horizontal guide (3); a first support member (4) slideably arranged on said horizontal guide (3), a horizontal linear actuator (5); which determines the slide in both directions of said support member (4) on the horizontal guide (3); a vertical guide (6), integral with said first support member (4), at right angles to the horizontal guide (3); a second support member (7), slideable in both directions on said vertical guide (6) by means of a first vertical linear actuator (8); a member for operating and supporting (10, 13) the surgical instrument (9), borne by the second support member (7); a horizontal plane (11) integral with said support member (7) and endowed with a second vertical linear actuator (12) which allows its raising and lowering in an autonomous manner, and an arm (15), integral with said means for the positioning (1) and the vertical raising (2) and bearing, at its free end, a member (16) for correctly positioning of the portion which it is operated upon.
Patent CA-2137587-C (CA)
Inventor: KOLBE EDUARDO MORENO
IPC: H04W4/06
Filed: 1994-12-08
Granted: 1999-03-23
Abstract: In communication systems which include high speed wired local area networks (LANs) and low speed wireless LANs, the bandwidth of the wireless LANs can be severely impacted. It has been found that many broadcast or multicast messages which are forwarded to the wireless LANs are not required as the mobile terminals which would receive the messages are not required to act on them. The present invention provides a means and method to filter out unneeded messages so that they do not impact the bandwidth of the wireless network. Each access point for each wireless LAN maintains a table of parameters for each associated mobile terminal in the connected wireless LAN. The parameters in that table are compared to the parameters in message frames received by the access point and only those messages having parameters found in the table are put on the wireless LAN. The level of filtering can be controlled by specifying which parameters are to be used for filtering messages. The tables at each access point are maintained current by moving table entries from access point to access point as mobile terminals move from wireless LAN to wireless LAN and by removing inactive table entries from the table when a predetermined interval of inactivity is encountered and a terminal is determined to be no longer in active contact with the access point.
Patent CA-2138188-C (CA)
Inventor: DATTA PABITRA
IPC: C08K5/03
Filed: 1994-12-15
Granted: 1999-08-03
Abstract: A method of electrophotographically manufacturing a screen assembly on an interior surface of a faceplate panel for a color CRT includes the step of forming a photoreceptor, by sequentially coating the surface of the panel with a conductive solution to form a volatilizable conductive layer and then overcoating the conductive layer with an organic photoconductive solution comprising a suitable resin, an electron donor material, an electron acceptor material, a surfactant and an organic solvent to form a volatilizable photoconductive layer. The photoconductive layer of the photoreceptor is resistant to cracking during filming, displays increased phosphor adherence during fixing, can be substantially completely baked-out, and has substantially no spectral sensitivity beyond 550 nm, so that the screening process may be carried out in yellow light, rather than in the dark, in order to provide a safe working environment without deleterious effects on the panels coated with the novel photoconductive layer.
Patent CA-2138829-C (CA)
Title: Secure money transfer techniques using smart cards
Inventor: CLAUS DAVID MICHAEL
IPC: G06Q20/34
Filed: 1994-12-22
Granted: 1999-08-10
Abstract: Systems and methods for providing secure electronic financial transactions characterized in that money is electronically stored on a plurality of smart cards. A plurality of smart cards are each equipped with an electronic security wall having a closed state and an open state. In the closed state, the smart card is disabled from participating in financial transactions, and in the open state, the smart card may participate in financial transactions. A security key smart card is equipped with a first security key for changing the state of the electronic security wall from the open state to the closed state, and a second security key for changing the state of the electronic security wall from the closed state to the open state. Financial transactions include, for example, electronically transferring money between a bank center and a smart card; electronically transferring money between the first and second smart cards; checking the amount of money stored on a smart card; and adding interest to the amount of money stored on the smart card.
Patent CA-2143079-C (CA)
Inventor: GALE RICHARD O
IPC: G02B26/08
Filed: 1995-02-21
Granted: 2005-08-23
Abstract: A method for controlling a digital micromirror device resulting in decreased mechanical stress, longer device lifetimes, decreased incidence of spontaneous bit reset, and increased pulse-width modulation accuracy. To reduce the device stress, the bias voltage applied to the mirror may be reduced after the mirror has been latched. To prevent premature mirror changes, the address electrode bias voltage may be reduced after the mirror is driven to the desired position. To ensure that the mirror returns to the neutral position during reset, the mirror bias voltage may be raised from ground potential to approximately halfway between the two addressing voltages during the reset period. To reduce the effects of hinge memory and to ensure that the mirror rotates toward the proper address electrode, the mirror bias voltage may be gradually increased to allow the mirror time to rotate towards the proper address electrode.
Patent CA-2143810-C (CA)
Inventor: MCCURLEY JEFFREY L
IPC: G01B7/30
Filed: 1995-03-02
Granted: 2001-05-29
Abstract: An internal combustion engine throttle position sensor has a shaped dual magnet structure carried upon a pole piece having a generally "c" shaped cross-section. The magnet and pole piece define a generally circular linear field which is concentric about the axis of rotation of the complete rotor. A Hall effect device is inserted into the open portion or gap between the two magnets and is exposed to a well defined field. Through the use of selected geometries and particular magnet materials, a precise and yet tolerant magnetic circuit is produced.
Patent CA-2146872-C (CA)
Title: Heating system for barbecue grills and other gas appliances
Inventor: MOORE ROGER R JR
IPC: A47J37/07
Filed: 1994-08-12
Granted: 2002-02-05
Abstract: A heating system for barbecue grills (10) and other gas appliances is disclosed, the system having a U-shaped tubular burner (18) and shield (80). The system may also include a radiant material (92) disposed below the burner.
Patent CA-2146947-C (CA)
Inventor: GRANT LARRY J
IPC: D04H1/70
Filed: 1995-04-12
Granted: 1998-07-14
Abstract: An insulation assembly and method of making is disclosed. A fiber pack is engaged along its side edges to tuck the fibers inwardly and also establish a desired width. The insulation assembly has the longitudinally extending tucks along each of its side edges and each of the side edges has a generally concave cross section.
Patent CA-2148740-C (CA)
Title: Damped one-way self-closing gate
Inventor: MCGUIRE JOHN DENNIS
IPC: E05F1/06
Filed: 1995-05-05
Granted: 2001-01-02
Abstract: A one-way self closing gate such as may be used in retail stores, airports or libraries is provided with an inclined helical ramp mechanism by which opening of the gate also causes lifting of the gate arm relative to the gate base. When released the gate will tend to close itself under the force of gravity.  To   augment this  gravity force a spring  is provided which is compressed as the arm rises relative to the base.  So that the gate does not close too quickly a screw presses a nylon slug against the turning shaft of the gate.  When the gate is closed a force applied to open the gate in the contrary direction to  that intended is  resisted by abutment of a generously welded internal stop against a generously welded internal upright.  In an alternate form this resistance function in the closed position is performed by an adjacentpost positioned to intercept the motion of the moving barrier. In all cases the internal  mechanism of the gate is enclosed in a housing to prevent injury to children's fingers.
Patent CA-2150441-C (CA)
Inventor: FISCHER EBERHARD
IPC: B22D11/126
Filed: 1995-05-29
Granted: 2007-01-02
Abstract: A process and an apparatus for strand-casting near to final size cast formats from non-ferrous metals for the purpose of further cold working, especially strips, bars or tubes of copper or copper, alloys. The process includes continuously casting the melt in a vertical mold to form a vertical strand, withdrawing the solidified strand from the mold in a centrally guided manner and directly threading into a surface treatment machine, removing the surface of the strand, laterally cutting the surface-finished strand in a predetermined manner, and removing the cut strand pieces from the machine. The machine for carrying out the process has a base frame which is connected to a foundation and on which a withdrawal device, a surface treatment unit, a cross-cutting device, and a conveying device are provided in line.
Patent CA-2150729-C (CA)
Title: Method of incorporating a variable rate auxiliary data stream with a variable rate primary data stream
Inventor: NETRAVALI ARUN NARAYAN
IPC: H04N19/00
Filed: 1995-06-05
Granted: 1999-07-27
Abstract: A method of incorporating an auxiliary signal with an input video signal includes the step of encoding the input video signal to generate a variable bit rate encoded signal having a selected level of distortion. The video signal is applied to a buffer. The level of distortion is selected as a function of the fullness of the buffer. The video signal is read from the buffer and applied to a transmission channel at a predetermined video output rate. Portions of an auxiliary signal are applied to the channel at times when the buffer is in an underflow condition. The selected level of distortion has a flow which corresponds to a predetermined, non-zero level of perceptual distortion in the video signal.
Patent CA-2153192-C (CA)
Title: Dispositif et methode de mesure de profil de vitesse dans un fluide polyphasique
Inventor: CONSTANT MICHEL
IPC: G01F1/74
Filed: 1995-07-04
Granted: 2006-06-06
Abstract: La présente invention concerne un dispositif et une méthode de mesure de la vitesse de la phase liquide et de la phase gazeuse d'un milieu polyphasique en écoulement dans une conduite. On émet une première onde à une fréquence adaptée à la phase liquide et une seconde onde à une fréquence adaptée à la phase gazeuse, et à partir de la mesure d'un paramètre caractéristique des ondes perturbées après la traversée du milieu, on détermine le champ de vitesse de la phase liquide et de la phase gazeuse.
Patent CA-2155858-C (CA)
Inventor: PHARES LOUIS A
IPC: H05B37/02
Filed: 1994-02-11
Granted: 2007-05-08
Abstract: A controlled lighting comprises a control system which transmits DATA and CLOCK information to a plurality of light modules. The light modules each include at least two light elements and a control unit which is responsive to the DATA and CLOCK information received from the control system to vary individually the amount of light emitted by each of the light elements in each light module. Contemplated uses of the controlled lighting system include decorative lighting, illuminated display signs, etc.
Patent CA-2163202-C (CA)
Inventor: RODRIGUES ANIL N
IPC: B23K37/02
Filed: 1995-04-10
Granted: 1997-02-04
Abstract: A carriage (10) is disclosed for hold-ing and guiding a tool (50) along a spec-ified path on a workpiece (58) at a con-trolled, substantially constant speed. The carriage (10) has a pair of transverse rollers (26) mounted on the carriage (10) and adapted to ride along an upper edge (70) of a flange disposed on the workpiece (58).
Patent CA-2164924-C (CA)
Inventor: HOFFMAN ERNEST G
IPC: H01R13/595
Filed: 1995-12-11
Granted: 2005-07-12
Abstract: An electrical wiring device having a mechanism for clamping conduits of various diameters. The wiring device includes an electrical connector having a passageway for receiving conduit therein, and a clamping mechanism securely coupled thereto for clamping conduits having a variety of diameters. The clamping mechanism has at least one outwardly extending member and rotates 90° between first and second positions. When the clamping mechanism is in its first position, it clamps conduit having a large diameter. When the clamping mechanism is in its second position, the outwardly extending member thereon clamps conduit having a smaller diameter. The clamping mechanism is snap-fitted to the connector which allows relative rotary and slight axial movement therebetween. Teeth on the connector and clamping mechanism prevent relative rotary movement when engaged, and can be disengaged by axially moving the clamping mechanism.
Patent CA-2165514-C (CA)
Title: Injection molding carbide torpedo
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/27
Filed: 1995-12-18
Granted: 2007-10-02
Abstract: An injection molding torpedo which can itself be injection molded by a M/M process of a carbide alloy to have high resistance to corrosion and wear. The torpedo has a conical front surface which forms a pointed tip and a melt channel extending to an outlet on the conical front surface. The melt channel has a central rear portion extending from an inlet on the surface of the torpedo and a diagonal front portion extending from the rear portion to the outlet. The diagonal front portion of the melt channel is tapered inwardly enough to offset the diagonal at which it extends to allow for free ejection of the molded torpedo from its mold. This requires that the taper be enough that the shortest longitudinal line along the inner surface forming the melt channel does not diverge outwardly anywhere along its length.
Patent CA-2169936-C (CA)
Title: Glass composition for making glazing
Inventor: COMBES JEAN-MARIE
IPC: C03C3/095
Filed: 1995-06-22
Granted: 2005-10-25
Abstract: A silica-soda-lime glass composition suitable for making glazing. Said glass consists of 69-75 wt % SiO¿2?, 0-3 wt % Al¿2?O¿3?, 0-5 wt % B¿2?O¿3?, 2-10 wt % CaO, 0-2 wt % MgO, 9-17 wt % Na¿2?O, 0-8 wt % K¿2?O, 0.2-4 wt % Fe¿2?O¿3? (total iron), and 0-0.45 wt % Se, CoO, Cr¿2?O¿3?, NiO, CuO. The amount of tinting agents other than iron is at least 0.0002 wt % when the Fe¿2?O¿3? content is 0.5 wt % or less. The composition may also contain fluorine; zinc, zirconium, cerium and titanium oxides; and less than 4 wt % barium oxide; while the sum of the percentages of alkaline earth oxides is not above 10 wt % .
Patent CA-2170453-C (CA)
Inventor: HAEUSSERMANN SIEGFRIED
IPC: B27B17/02
Filed: 1996-02-27
Granted: 1999-09-14
Abstract: A guide bar for a saw chain has a sort-shaped base member made of solid material, having a front end with a deflection area for a saw chain and a rear end for connecting the guide bar drive unit.      The base member has outer lateral surface extending from the front end to the rear end and a longitudinal central axis extending from the front end to the rear end. The base member has a main body and a separate front member welded to the main body so as to have a welding seam on at least one of the lateral surfaces. The base member has an edge with a continues circumferential groove for receiving and guiding the saw chain.
Patent CA-2170857-C (CA)
Inventor: DOTO SHIGEAKI
IPC: B60T13/58
Filed: 1996-03-01
Granted: 2000-05-09
Abstract: Brake control device for railroad stock has a braking force setting unit to add a braking force command signal for a powered car and braking force command signals for trailer cars and output a composite command signal. A main control device receives such composite signal and generates an electrical braking force. A braking force computation unit splits an error in an electrical braking force equivalent command signal corresponding to an actual electrical braking force with respect to such composite command signal into a supplementary hydraulic braking force command signal for a powered car and supplementary hydraulic braking force command signals for trailer cars and outputs results to hydraulic brake devices of such cars, wherein the command signals of such trailer cars are individual car command signals obtained by splitting such command signals in rolling stock units a plurality of times. Such setting unit adds such command signal for such powered car and such plurality of individual trailer car command signals and the braking force computation unit computes and outputs a trailer car braking force load element in such electrical braking force equivalent signal as a plurality of individual trailer car braking force load signals in response to such individual car command signals and computes and outputs such supplementary hydraulic braking force command signals to such hydraulic brake devices of such cars based on the command signals in such rolling stock units for such cars and a sum of individual trailer car braking force load signals associated with such cars.
Patent CA-2180602-C (CA)
Title: Four heated nozzle manifolds interconnected in a common plane
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/73
Filed: 1996-07-05
Granted: 2007-03-13
Abstract: Multi-cavity injection molding apparatus having four nozzle manifolds mounted in a common plane with a central inlet manifold having two arms extending in opposite directions. The central manifold has a longitudinal axis extending in a first direction through the two arms. Each nozzle manifold is offset from the central manifold in a second direction that is substantially perpendicular to the longitudinal axis. Each nozzle manifold has a locating pin to locate it in a second direction perpendicular to the first direction. The locating pin allows thermal expansion to slide the nozzle manifold in the first direction into a position wherein each branch of the melt passage is aligned with the melt bore through one of the nozzles extending from the nozzle manifold. A pair of the nozzle manifolds are connected on opposite sides of each arm of the central manifold by connector bushings. Each connector bushing is sufficiently slidable to absorb thermal expansion in the second direction which allows the locating pin to be used to locate each nozzle manifold in the second direction. Thus, the combination of the connector bushing and the locating pin allow sufficient movement of the nozzle manifold in both the first and second directions to provide for thermal expansion of the heated manifold relative to the cooled mold.
Patent CA-2191287-C (CA)
Inventor: RUSH JONATHAN EDWARD
IPC: B65D43/02
Filed: 1996-11-26
Granted: 2003-03-11
Abstract: A thin walled lid formed of a thermoplastic material having a generally circular center portion and an outer run portion which fits over the cup bead and includes an integral peripheral skirt which makes up the outer side wall of the lid is disclosed. Located between the rim portion and the center portion is a recess or annular trough with an inner wall and an outer wall. The outer wall is separated into two shelves and three vertical sections. The lower shelf serves as a receiver ring upon which the lid above rests. The short vertical section located above the receiver ring effectively prevents any lateral movement of the lid above, while the lowest wall section forms the stacking ring and generally has a negative slope toward the lid skirt. Spaced periodically around the circumference of the stacking ring are positive draft flutes which have a positive slope away from the skirt and toward the center of the lid. The recess has a generally flat bottom which connects the stacking ring to the inner wall. The corner of the lid where the stacking ring and the recess bottom join rests in the receiver ring of the next lower lid in the stackto provide uniform nesting and full circumferential support. The inner wall of the recess has a positive slope and connects the bottom of the recess with the generally flat center portion. In an alternative embodiment, the negative stack ring and the receiver ring are provided on the inner wall of the lid. There are no positive draft flutes provided, in that as the plastic cools during the thermoforming process the negative stack ring will shrink towards the lid centera sufficient distance to allow the lid to clear the undercut of the mold during stripping.
Patent CA-2196224-C (CA)
Title: Wave energy generator
Inventor: VOWLES GERALD JOHN
IPC: B01D61/10
Filed: 1997-01-29
Granted: 2003-07-01
Abstract: An apparatus and method as seen in Fig.2 for converting the motion of waves on a body of fluid 52 into useable energy. This apparatus employs a wave follower 20 to track the rising and falling waves.      The reciprocating wave follower interacts with a driven device, such as a pump 202a or generator 202b through an optional lever arm 171 and also through a drive member such as a reciprocating shaft 26. Because the driven device is incorporated into an essentially immovable floating or fixed support member 17, work is accomplished. By increasing the work producing travel distance of the driving member, being the wave follower 20 beyond that of previous art and, in certain embodiments such as that shown in Fig.2, and by more effectively capturing surge forces that has previous art, this apparatus is intended to produce significantly more work than other similar devices operating in the same waves.