Patents Represented by Attorney, Agent or Law Firm Jefferson Perkins
  • Patent number: 6282976
    Abstract: A rotatable handgrip twistshifter (10) mountable coaxially about a bicycle handlebar (20) that abruptly or discontinuously increases the mechanical advantage when shifting a front derailleur from a smaller to a larger chainring. A control cable (86) is slidably connected to the handgrip (12) such that during rotation of the handgrip (12) to effect gear shifts from the middle to larger chainrings of a triple chainring crankshaft (40, 41, 42), the cable (86) is abruptly dropped toward the handgrip axis of rotation thereby increasing the mechanical advantage or leverage of the shifter (10). Alternatively, the control cable (86) is slidably connected to the pivot arm (114) of a front derailleur such that during rotation of the handgrip (12) the cable (86) is deflected away from the derailleur pivot axis (207), likewise, increasing the mechanical advantage of the derailleur.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: September 4, 2001
    Assignee: SRAM Corporation
    Inventors: Brian T. Jordan, John D. Cheever
  • Patent number: 6279688
    Abstract: A control cable quick release device for use with cable-actuated brake arms that permits disengagement of the control cable from the brake arm without braking the seal between the quick release device and the deformable bellows thereby preventing premature corrosion of the control cable and permitting quick and easy removal of the bicycle wheel.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: August 28, 2001
    Assignee: SRAN Corporation
    Inventors: Charles M. Goldman, Timothy J. Smith
  • Patent number: 6267704
    Abstract: A multiple-speed transmission wheel hub for imparting torque to a drive wheel includes a hub shell formed around a wheel axis and a clutch wheel formed around the wheel axis and axially movable between at least first and second speed positions. First gearing couples the clutch wheel to the hub shell when the clutch wheel is in the first position producing a first transmission speed. Second gearing couples the clutch wheel in the second speed position with the hub shell producing a second transmission speed. A speed-shifting cam is disposed on the axis and axially rotatable between at least first and second speed positions, with helical segments formed on a surface of the clutch wheel facing the cam, the helical segments coupling to the cam to translate rotation of the cam into axial displacement of the clutch wheel both from the second speed position to the first speed position and from the first speed position to the second speed position.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: July 31, 2001
    Assignee: SRAM Corporation
    Inventors: Sam H. Patterson, Werner Steuer
  • Patent number: 6264008
    Abstract: A parallel-push brake assembly for bicycles that provides substantially translational motion of the brake pad using a mechanism that is relatively free of tolerance build-up or slop.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: July 24, 2001
    Assignee: Sram Corporation
    Inventors: Brian T. Jordan, Michael P. Johnson, Ryan A. Calilung, John D. Cheever, Sanjeev K. Mankotia, Kevin F. Wesling
  • Patent number: 6263754
    Abstract: A brake or clutch operating device having a hand lever pivotally attached to a mounting bracket secured to a handlebar, the hand lever rotatable about a rotation axis that is offset from the pivot axis, and a transmission mechanism for converting a rotational force applied to the hand lever into a rectilinear force drawing the hand lever toward the handlebar. The transmission mechanism and hand lever configured to force rotation about the rotation axis in response to rotation of the hand lever about the pivot axis, the resulting compound motion of the hand lever following the natural arched motion of the rider's fingers during lever actuation.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: July 24, 2001
    Assignee: SRAM Corporation
    Inventors: Kevin F. Wesling, Kent A. Solberg, Brian T. Jordan, John D. Cheever, David J. Zimberoff
  • Patent number: 6223621
    Abstract: A brake operating device having a brake lever pivotally attached to a mounting bracket secured to a handlebar, the brake lever rotatable about a rotation axis that is offset from the pivot axis, and a transmission mechanism for converting a rotational force applied to the brake lever into a rectilinear force drawing the brake lever toward the handlebar. The transmission mechanism and brake lever configured to force rotation about the rotation axis in response to rotation of the brake lever about the pivot axis, the resulting compound motion of the brake lever following the natural arched motion of the rider's fingers during lever actuation.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: May 1, 2001
    Assignee: Sram Corporation
    Inventors: Kevin F. Wesling, Kent A. Solberg, Brian T. Jordan, John D. Cheever, David J. Zimberoff
  • Patent number: 6203702
    Abstract: An animal waste treatment system, particularly adapted to process the waste from a large-scale confined animal facility, has two treatment cells and a holding reservoir. Each of the treatment cells has an anaerobic zone which is two to five feet deep and an aerobic zone on top of the anaerobic zone which is at least twelve feet deep. Effluent from the facility is introduced into the anaerobic zone of the first cell; the aerobic zone of the first cell has a fluid connection to the anaerobic zone of the second cell. Residence times are preferably twenty-one days per cell. The aerobic zone is created by the injection of air with a coarse aerator. Oxygen introduced by the aeration oxidizes reduced nitrogen compounds and other volatiles; much of the nitrogen escapes as N2 to the atmosphere. A portion of the cleaned water is returned to the facility for dilution and flushing purposes. The rest of the cleaned water is used to irrigate crops.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: March 20, 2001
    Assignee: Sheaffer International Ltd.
    Inventor: John R. Sheaffer
  • Patent number: 6199447
    Abstract: A bulbous rotatable gripping surface for a derailleur-type bicycle gear shifting system is formed of a resilient material with axially extending and angularly alternating ridges and base regions. The bulbous shape extending along the handlebar axis provides an increased diameter that naturally conforms to the longer middle finger of a rider's hand relative to the shorter adjoining index and ring fingers, to aid in the transmission of torque. The ridges and base regions are angularly spaced such that they fit naturally into the crooks of the rider's hand. The ridges, likewise, provide a larger diameter to aid in the transmission of torque and to protrude above any mud which may have collected thereon. To further enhance the torque transmission capabilities of the grip, the gripping surface is provided with a pattern of nubs.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: March 13, 2001
    Assignee: SRAM Corporation
    Inventors: Brian L. Lump, David J. Zimberoff, Patrick J. Brady, Michael W. Larson
  • Patent number: 6196634
    Abstract: A movable bed liner hinged at the back end for converting a pickup truck into a dump truck. A pair of linear hydraulic rams disposed in respective compartments in front of the wheel wells is operable to raise and lower the dump body liner. This invention uses otherwise unusable, “dead” space in front of the wheel wells and preserves the appearance of a normal flatbed pickup truck.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: March 6, 2001
    Inventor: John Jurinek
  • Patent number: 6167382
    Abstract: A client at a remote site may order each of a series of images from a low resolution image database, and may then assemble these images and text into a marketing piece. Once assembly is complete, the client orders the system proprietor to produce the marketing piece according to the client's specifications. The client communicates to the system proprietor via a web site on the Internet, which has associated with it a pair of applications for the ordering of images and the assembly of marketing pieces. The client assembles the marketing piece according to one of a series of predefined templates, which constrains the choices which the client has such that the produced marketing piece will have the look and feel dictated by the client's company. The templates, each of which has associated with it a series of slots for the placement of image or text, also permit easy assembly of a marketing piece by simply specifying the material which goes within the slot.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: December 26, 2000
    Assignee: F.A.C. Services Group, L.P.
    Inventors: Don R. Sparks, M. James Scott, Wally Tremel
  • Patent number: 6162159
    Abstract: A ticket dispenser has a dispenser body with an internal chamber, and a lid for closing the chamber. The lid has an external ticket-receiving surface. A roll of paper or the like is contained in the chamber, and is fed between a rotating drum and an upright support surface. The lid defines a substantially upright wall with an upper edge, the wall being offset with respect to the support surface when the lid is closed. A passive retainer mechanism on the body retains against the upright wall any part of the paper web rising from between the drum and the support surface. A relatively stiff deflector bends the web material around the edge by virtue of a deflector surface located so as to be intersected by the projection of the operative part of the upright wall portion. A cutter is provided to cut the paper web into discrete tickets.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: December 19, 2000
    Inventors: Calvin Duke Martini, Eugene Anthony Helmetsie
  • Patent number: 6053739
    Abstract: An attention performance test uses a visual display, a test subject input device, a memory and a programmed processor coupled to each of the above to administer a test to a test subject. A test target, which for example can be a word colored in a first color but meaning another color, is attempted to be matched by the test subject to one of a series of sequentially presented visual response targets. In one embodiment, a nonvisual test stimulus is also provided to the test subject, the test subject having previously been instructed to respond to the nonvisual test stimulus (such as a beep) in a particular way. The test also measures the response latency of the test subject, i.e., whether the test subject has assumed a correct position for entering a response. The responses from the test subject are recorded and may be compared with data derived from a test subject database in assessing whether an attention deficit disorder exists.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: April 25, 2000
    Inventors: Donald B. Stewart, Thomas D. Sullivan
  • Patent number: 5932911
    Abstract: A field effect transistor is formed across one or more trenches (26) or bars (120), thereby increasing the effective width of the channel region and the current-carrying capacity of the device.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: August 3, 1999
    Assignee: Advanced Micro Devices, Inc.
    Inventors: John T. Yue, Matthew S. Buynoski, Yowjuang W. Liu, Peng Fang
  • Patent number: 5923063
    Abstract: Floating gates of nonvolatile memory cells are formed in pairs within a pyramidal or truncated pyramidal opening in a semiconductor layer between a top surface thereof and a heavily doped source region spaced from the surface of the semiconductor layer. The floating gates control the conductance of channel regions formed along the sloped sidewalls of the pyramidal openings between surface drains and the buried source region.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: July 13, 1999
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Yowjuang W. Liu, Donald L. Wollesen, John T. Yue
  • Patent number: 5906140
    Abstract: A bicycle brake lever assembly attachable to a handlebar, comprising a lever pivotally attached to a brake housing, the housing having a substantially continuous hoop of material across the top and sides of the housing maximizing the flexural and torsional stiffness of the braking lever assembly. Impact loads from collisions With natural objects are transmitted from the brake lever through the housing to the handlebar, the housing being significantly more rigid to sustain transverse loading delivered by the lever. The housing providing a cable insertion slot on a shielded surface projecting substantially onto a plane substantially orthogonal to the bicycle handlebar.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: May 25, 1999
    Assignee: SRAM Corporation
    Inventor: Timothy J. Smith
  • Patent number: 5886770
    Abstract: A visual field test device (10) is disclosed which allows a larger area of the visual field to be examined and allows use of the device for testing for diseases of the eye and brain, for example, glaucoma. The device consists of a chart (12) which has visual target patterns (13) for the left and right eyes and which is foldable about fold line (45) so that the visual targets are on front and rear surfaces of the device (10). Each visual target consists of about 60 fixation targets (14), represented by sequential numbers, arranged to spiral outwards along lines (16) to facilitate use by test subjects. A plurality of test stimuli (21) are located on a rotatable disc (18) and the chart (12) has a central aperture (20) through which a selected test stimuli (21) can be viewed. Different test stimuli can be used as required and in one embodiment a moveable cover (22) can be used to obscure the test stimuli.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: March 23, 1999
    Assignee: University Court of the University of Glasgow
    Inventor: Bertil Eric Damato
  • Patent number: 5857387
    Abstract: Nubbed grips for hand-rotatable bicycle gear shifters have longitudinally elongated groups of nubs (50) that are angularly spaced apart by valley regions (44). Preferably, the elastomeric nubs are formed both on a cylindrical portion and an adjacent flanged portion of the grip.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: January 12, 1999
    Assignee: SRAM Corporation
    Inventors: Michael W. Larson, Andrew J. Caron, John David Cheever, Tymme A. Laun, Tyler D. Duston
  • Patent number: 5846038
    Abstract: A void filler (10) has intersecting cellular or prismatic members (16, 34) that are disposed inside of an exterior housing (14). Sides (46, 44; 64, 66) of the prismatic members are disposed to be perpendicular to the substantially vertical sides (20, 22; 26, 28) of the outer housing (14), and are disposed at angles to each other. The sides (44, 46) are superimposed on sides (64, 66) in elevational section, so that they coact to provide resistance against compressive forces. Despite the increase in compressive strength thus provided, the void filler (10) occupies only four thicknesses of cardboard in a collapsed condition.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: December 8, 1998
    Assignee: Corrugated Container Corp.
    Inventor: Arthur L. Bostelman
  • Patent number: 5843030
    Abstract: The present invention relates to a device for administering a fluid medicament to an infant via a teat in fluid flow communication with a reservoir for the fluid medicament, characterised in that the device comprises:a. a teat having an inlet at or adjacent its proximal end to receive fluid from the reservoir and an outlet at or adjacent its distal end through which fluid fed to the teat from the reservoir is adapted to flow into the mouth of a user;b. a conduit within the teat directly connecting the said inlet to the said outlet for the direct flow of fluid medicament from the reservoir to the outlet of the teat;c. an intermediate member located intermediate the proximal end of the teat and the reservoir and adapted to securely receive and locate the teat and to receive the reservoir;d. a reservoir formed integrally with, or demountably secured to, the said intermediate member and being in fluid flow communication via said intermediate member and said conduit with said teat outlet.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: December 1, 1998
    Assignee: Harwill Industries (Pty) Limited
    Inventor: Marius Van Der Merwe
  • Patent number: D396396
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: July 28, 1998
    Assignee: SRAM Corporation
    Inventor: Michael W. Larson