Patents Represented by Law Firm Davis, Bujold & Streck
  • Patent number: 5586973
    Abstract: The irrigation circuit of this apparatus comprises a second pressure sensor CP2 forming a flowmeter with a first CP1, as well as a pressure sensor CPA located downstream.The apparatus also comprises a processing and control unit UCCG which establishes the calculated value of internal pressure within the cavity PI using the pressure variations furnished by pressure sensors CP1, CP2 during a procedure in relation to the values of the pressure differences during operation outside the cavity, which are stored for each resectoscope RT1. . . RTi . . . RTn during an initial calibration phase so that the absorption flow rate can be controlled.This invention is of interest to manufacturers of surgical instruments.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: December 24, 1996
    Assignee: C & D Biomedical S.A.
    Inventors: Ivan Lemaire, Bertrand Gonon
  • Patent number: 5586732
    Abstract: The invention was developed in order to effectively crush and disperse various samples easily and efficiently without using any expensive device. By laminating a polyethylene film 3, a net member 7, a net member 9 and a polyethylene film 5 in sequence and welding these members to one another at weld portions 13a and 13b, a bag member 15 is formed. Further by forming a fastener 17 in the vicinity of an opening 15a, a crushing and dispersing bag 1 is completed. After a sample and a dispersing medium are introduced through the opening 15a, the bag is sealed with the fastener 17. Subsequently, when the crushing and dispersing bag 1 is squeezed, the sample is ground by the file-like irregularities formed by the net members 7 and 9 on the inner surface of the bag 1.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: December 24, 1996
    Assignee: Shimakyu Chemical Co., Ltd.
    Inventors: Hiroshige Yamauchi, Shonosuke Nishi
  • Patent number: 5585571
    Abstract: A method of, and apparatus for, measuring dynamic torque transmitted by a shaft having an axis of rotation is characterised by the steps of:1 locating on the shaft (S) a pair of transducers (T, T1, T2), each comprising an SAW resonator, as a complementary pair so that for a first direction of rotation (K) of the shaft (S) about the axis (A) one transducer (T1) is under compression and the other (T2) in tension and for a reverse direction of rotation of the shaft the one transducer (T1) is in tension and the other (T2) in compression, a signal input (C1) and a signal output (C2, C3) for either each transducer or a single signal output for a signal derived from both transducers, the signal input and signal output or outputs being located at discrete locations on or near the outside of the shaft (S) for rotation therewith,2 causing a driving signal to be applied to the signal input (C1);3 detecting at each or the signal outlet (C2, C3) at least an output resonant frequency of the transducer (T, T1, T2) when driv
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: December 17, 1996
    Inventors: Anthony Lonsdale, Bryan Lonsdale
  • Patent number: 5582905
    Abstract: A non-woven mat of fibrous thermoplastic insulation is produced by melt blowing recycled polyethylene teraphthalate (PET). The PET is melted, pressurized and extruded from an extrusion head into substantially continuous fibers that are subjected to turbulent high velocity air that attenuates the fibers. The fibers are then collected on a collection device building up a non-woven mat. The collection device is spaced from the extrusion device forming a flight path for the fibers that is sufficiently long that the fibers split apart under the force of the high velocity air, fibrillating into a plurality of very fine fibrils of under 15 microns in diameter. These fibrils are analogous to goose down and greatly enhance the loft and R value of the mat.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: December 10, 1996
    Inventors: Martin H. Beck, George F. Rollend, Lydia K. Reed, Marshall T. Watson, David W. Arseneau
  • Patent number: 5569191
    Abstract: The invention concerns a device for the preparation of a medicinal solution from two components, one of which is in powder, lyophilisate or liquid form and the other a dilutant or a liquid solvent. These components respectively are charged in a rear container (11) and a front container (13), each of which has an opening closed off by a stopper-piston-dish, which is axially movable. Both these stopper-piston-dishes (19, 24) are connected by a conveyance shaft (15) adapted to ensure a rigid, tight and sterile coupling between the two stopper-piston-dishes (19, 24) when the device (10) is in a charging position, and to define a channel between both these containers (11, 13) when the device is in a position of use.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: October 29, 1996
    Inventor: Gabriel Meyer
  • Patent number: 5570415
    Abstract: This invention relates to a multi-function, hand-held, wireless, remote control apparatus for television viewer use. An apparatus that permits the viewer to use the public telephone network, to control the selection and distribution of television entertainment and educational programming, and to directly control recorded programming playback apparatus located at a remote central television control centre. The invention also relates to control apparatus that permits the television distribution centre to remotely control the viewer's television receiving and recording apparatus. Also the invention relates to apparatus for the interfacing of a standard remote control device to different models of television receiving and recording apparatus. In addition, the invention relates to a full featured, wirelessly controlled speakerphone apparatus.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: October 29, 1996
    Assignee: Sasktel
    Inventors: Alton O. Stretton, Paul King
  • Patent number: 5564993
    Abstract: A roller-control unit for a continuously-variable-ratio transmission of the toroidal-race rolling-traction type, in which the roller carriage (10, 14) is connected by a pivotal joint (30) to the piston (15) of a hydraulic piston-and-cylinder unit (15, 16). The piston (15) is double-acting, and the piston/cylinder contact is the only locus through which the roller carriage (10, 14) makes contact with the fixed structure of the transmission. The piston (15) may have an inner part (32) to which the roller carriage (10, 14) is jointed, and a sleeve-like outer part (33, 34) which makes the necessary sliding and sealing contacts with the cylinder (16), but allows the roller carriage (10, 14) the necessary freedom of pivoting movement during use.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: October 15, 1996
    Assignee: Torotrak (Development) Limited
    Inventor: Leslie K. Robinson
  • Patent number: 5564998
    Abstract: A continously-variable-ratio transmission ("CVT"), for instance of the toroidal-race rolling-traction type, capable of geared neutral and of operating in at least two regimes and including a ratio-varying component ("variator"), a power-recircuiting epicyclic, a final drive shaft connectable with the variator by way of one of two alternative driven shafts and an input epicyclic the input of which is connectable to a prime mover and the two outputs of which are connected to the two alternative driven shafts respectively. One of the regimes includes a "geared neutral" condition, and the power-recirculating epicyclic is associated with clutches whereby power is recirculated through it in that regime. In the remaining one or more regimes no power is recirculated within that epicylic, but drive reaches the CVT output by way of appropriate clutches and whichever of the two driven shafts will rise in speed as that regime proceeds.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: October 15, 1996
    Assignee: Torotrak (Development) Limited
    Inventor: Thomas G. Fellows
  • Patent number: 5562979
    Abstract: The method involves providing a powdered or granulated plastics paint material which is heated to a plastic condition to form a plastics coating material and injected into a mould. A plastics substrate material is also injected to spread the plastics coating material over surfaces of the mould so as to envelope the plastics substrate material. A moulding is then produced comprising a substrate having a surface coated by the injected plastics paint material. The method enables a moulding to be produced having a painted surface produced in the mould thereby avoiding the need to apply a subsequent paint finish.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: October 8, 1996
    Assignee: Rover Group Limited
    Inventors: Ronald A. Easterlow, Gordon F. Smith
  • Patent number: 5562311
    Abstract: A coupling for connection to an end of a hose to allow fluid to pass therethrough. The coupling comprises a tapered end inserted into the end of the hose and a tapered collar fitted on the outside of the hose. Once assembled, the collar provides uniform compression of the hose about the tapered end thereby preventing detachment or leakage. The coupling is designed such that it can be field installed and uninstalled without the need for specialized installation tools.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: October 8, 1996
    Assignee: Jaffrey Fire Protection Company, Inc.
    Inventor: Donald K. Sawtelle
  • Patent number: 5560401
    Abstract: A fabric having two images on a front surface thereof. The images are defined by a plurality of parallels, alternating, upper pairs and lower pairs of weft yarns. The upper pairs forming ridges defining the images and the lower pairs forming valleys between each adjacent pair of ridges. A first of the two images being visible when viewing the front surface at an angle from a first direction and substantially invisible when viewing the front surface at angle from a second direction. A second of the two images being visible when viewing the front surface from the second direction and substantially invisible from the first direction. The invention also provides a process for producing the fabric.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 1, 1996
    Inventor: Wanda M. Miglus
  • Patent number: 5560409
    Abstract: A method of resawing elongated radially sawn segments of timber so that bsawn boards are produced. Said wedges are sawn with the desired angle between the radial faces and are resawn so that the growth rings of the tree are basically parallel to the broad backsawn faces. The flared radial edges of the boards indicate the growth ring orientation and therefore the cupping tendency and the direction of bow. This enables a greater degree of consistency in the manufacturing process over conventional methods. Said backsawn boards can be used individually as conventional boards with the mentioned advantages or can be laminated together to make a range of laminates that balance or use the bowing and cupping tendency of backsawn timber.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: October 1, 1996
    Assignee: Australian Radial Timber Conversion Company (RADCON) Pty Ltd.
    Inventor: Andrew K. Knorr
  • Patent number: 5560234
    Abstract: A bolt-operated, vertical-lift lever lock having a lockcase or lock base and a lock cap, provided with a lever housing attached to at least one of the lockcase or lock base and lock cap and, wherein the lever housing is so constructed that the, or each, lever may slide within the lever housing and be protected against unauthorized lateral or longitudinal forces applied to the bolt.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: October 1, 1996
    Assignee: Keith James Ross
    Inventors: Keith J. Ross, Geoffrey H. Ross, Beverley A. Ross
  • Patent number: 5557521
    Abstract: The invention concerns a control system (10) for changing automatic gears (3) that operates according to fuzzy logic methods. All the fuzzy-production rules are divided into at least three sections: a set of basic rules to determine the gear-changing point in a consumption-oriented driving style, a set of adaptation rules to modify the set of basic rules depending on a current driving style and an identification set of rules for classifying the driver according to his/her driving style. By way of a supplementary set of adaptation rules the set of basic rules can be additionally modified according to a current driving condition. Individual function blocks (11 to 15) operate preferably according to the same inference mechanism. Gamma operators are used in order to approximate as closely as possible human behavior. A process is proposed for generating membership functions to determine a running condition by fuzzy-production rules.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: September 17, 1996
    Assignee: ZF Friedrichshafen AG
    Inventors: Wolfgang Danz, Wolfgang Runge, Gerhard Eschrich, Udo Gillich
  • Patent number: D374144
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: October 1, 1996
    Inventors: Donald M. Bromley, Andrew P. Somerville, Peter N. Rodis
  • Patent number: D374415
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: October 8, 1996
    Assignee: Rover Group Limited
    Inventor: George D. Thomson
  • Patent number: D374631
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: October 15, 1996
    Assignee: AFT International Pty Limited
    Inventor: Eilleen Whittaker
  • Patent number: D374642
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: October 15, 1996
    Assignee: Jaguar Cars Limited
    Inventor: Geoffrey Lawson
  • Patent number: D375897
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: November 26, 1996
    Assignee: Norpapp Industri A/S
    Inventor: Finn R. Hansen
  • Patent number: D390327
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: February 3, 1998
    Inventor: Johnny Warnelov