Patents Represented by Attorney, Agent or Law Firm David L. Davis
  • Patent number: 6684426
    Abstract: A folding collapsible massage bed constructed to include a bedstead formed of two equal open frames hinged together by leaved hinge means, two mattress elements respectively mounted on the open frames, two legs respectively pivoted to the open frames, two cord members bilaterally connected between the legs to limit the outward turning angle of the legs, four folding braces bilaterally symmetrically connected between the legs and hinge leaves of the hinge means, and locking means adapted for locking the folding braces in the extended position.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: February 3, 2004
    Assignee: LifeGear, Inc.
    Inventors: Lawrence Lin, Meng-Tsung Chen
  • Patent number: 6660396
    Abstract: A system for permanently associating identifying indicia with a previously manufactured product. Silicone sheet material having imbedded therein a quantity of thermally activatable crosslinking catalyst is secured to the product. An indici-containing element is placed on the silicone sheet material and is then covered by another piece of the same type of silicone sheet material. Heat is then applied to the assembly to cause the pieces of silicone sheet material to crosslink together and encapsulate the indicia-containing element.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: December 9, 2003
    Assignee: Truseal USA, Inc.
    Inventor: Stephen Warburton-Pitt
  • Patent number: 6651426
    Abstract: A hydraulically operated drive system for mini-loaders and like machines is disclosed. The system incorporates hydraulically operated wheels or sprocket/track arrangements as well as auxiliary functional mechanisms. Tandem hydraulic pumps are used, each one thereof being connected to a multiple spool series valve, providing two separated hydraulic circuits, each of which has a separate relief valve. Each multiple spool series valve controls a wheel motor and a loader/lift or like function. Each multiple spool series valve includes a single-acting spool connected to a common spool valve to provide auxiliary power control.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: November 25, 2003
    Assignee: Leon's Mfg. Company, Inc.
    Inventor: Kenneth J. Lange
  • Patent number: 6632164
    Abstract: Apparatus for forming a bag assembly from a tube and a tubular flexible membrane operates in accordance with a four step process. This process includes the steps of clamping the tube within an open end of the membrane, injecting liquid adhesive into the open end of the membrane, clamping the membrane and tube where the adhesive was injected, and heating and curing the assembly.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: October 14, 2003
    Inventor: Stephen Warburton-Pitt
  • Patent number: 6432345
    Abstract: A method for forming, in a single step, a silicone manifold interconnecting a plurality of silicone tubes is performed by providing a silicone insert piece having a network of interior channels dimensioned the same as the silicone tube interiors. Solid non-silicone plugs are inserted into the insert piece and the ends of the silicone tubes and the resulting assembly is placed in a mold cavity. Liquid silicone is added to the mold cavity and is then heated and cured to form the desired manifold interconnecting the tubes. The manifold is then removed from the mold and a source of pressurized air is used to blow out the plugs.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 13, 2002
    Assignee: Truseal USA, Inc.
    Inventor: Stephen Warburton-Pitt
  • Patent number: 6415140
    Abstract: A space diversity antenna system provided with dither circuitry in the signal path to one of the antennas to switch a circuit element in and out of the signal path at a high rate. The circuit element can be an amplitude attenuator or a phase changer. This switching results in the substantial elimination of nulling between the two antennas.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: July 2, 2002
    Assignee: BAE Systems Aerospace Inc.
    Inventors: James A. Benjamin, Joseph F. Camerlin, David M. Cooper
  • Patent number: 6407917
    Abstract: A fluid flow management system for enhancing cooling of a circuit pack. The system includes a bar extending transverse to the direction of fluid flow. The bar breaks up the otherwise laminar flow into a turbulent flow.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: June 18, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas F. Craft, Jr., Charles E. Johnson, Steven J. Smith, Dinh G. Lai, Dianne S. Wolpensinger
  • Patent number: 6396437
    Abstract: A microstrip antenna radiates and receives six beams in sequence out of a common aperture and processes return signals with common electronics in order to measure the velocity components relating to a backscattering surface. Sequentially, the first four beams are processed by measuring Doppler shift in a return signal while the last two beams are processed for time correlation. The result of the present invention is a combined time correlation and Doppler measurement velocity sensor available for operation over virtually all terrains and the vehicle speed range.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: May 28, 2002
    Assignee: BAE SYSTEMS Aerospace Inc.
    Inventors: Louis S. Marino, Robert W. Slater
  • Patent number: 6388642
    Abstract: A bidirectional multispeed indexing control system for a display unit which has an increment input and a decrement input so as to be controllable to sequentially index through an ordered list of discrete elements. The control system has a two-button user interface. The user presses one button to increment once, and holds that button to continuously index at a slow fixed speed. To increase the indexing speed, the user presses the second button while continuing to hold the first button. Indexing speed will continue to increase until either a maximum speed is reached or the user releases the second button, at which point the indexing speed decreases from the value reached while holding the second button. To stop indexing, both buttons are released. To increment in the opposite direction (i.e., decrement), the order in which the buttons are pressed is reversed.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: May 14, 2002
    Assignee: Lucent Technologies Inc.
    Inventor: Joseph F. Cotis
  • Patent number: 6379596
    Abstract: A method for forming a fitting at an end of a braid-reinforced silicone tube. A short length of the outer layer surrounding the braiding is removed and the exposed braiding is folded back over a first silicone ring and then a second silicone ring is placed over the folded-over braiding. The end of the tube is then placed in a mold which is then filled with liquid silicone. After the silicone is heated and cured, a unitary structure of tube and fitting results. Since the braiding is part of the unitary structure, it cannot be pulled out, thereby increasing the reliability of tube and fitting.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: April 30, 2002
    Assignee: Truseal, Inc.
    Inventor: Stephen Warburton-Pitt
  • Patent number: 6375361
    Abstract: An electromagnetic shield assembly for an optical fiber connector which comprises a conductive frame member enclosing an open space and a plurality of conductive fibers each secured at only one end to the frame member and extending into the open space. The free ends of the conductive fibers overlap in a central region of the open space to provide a “self-healing” mesh shield.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: April 23, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: Wayne R. Falco, Dany M. Zeidan
  • Patent number: 6371769
    Abstract: An adaptor for use with a magnetic clamp device to ground electrical apparatus to a metallic ground plane. The adaptor has a conductive baseplate and at least one clamp member secured to the baseplate for clamping a ground plate flange of the apparatus to the baseplate. The baseplate has a planar region dimensioned to cooperate with the magnetic clamp device so as to be grounded to the ground plane.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: April 16, 2002
    Assignee: Lucent Technologies Inc.
    Inventor: Glenn M. Brady
  • Patent number: 6345874
    Abstract: Cabinet mounting structure where the rear of the cabinet is inaccessible. The structure includes anchors mounted to the rear of the cabinet. A base plate having receptacles secured thereon is installed on a supporting surface. The receptacles are formed with cavities into which the anchors are inserted, thereby holding down the rear of the cabinet. The front of the cabinet is secured to the supporting surface by mounting bolts extending through the cabinet floor.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: February 12, 2002
    Assignee: Avaya Technologies Corp.
    Inventors: Quang Duong, Barbara M. Gunther, Ralph Liguori, Damon C. Owens, Dana L. Ross, Philip C. Sinclair
  • Patent number: 6324933
    Abstract: Apparatus for moving a platform in X and Y directions including a first shaft secured along a first edge of the platform and oriented axially in the X direction and a second shaft secured along a second edge of the platform and oriented axially in the Y direction. First and second bearings support the first and second shafts, respectively, for axial movement. First and second linear drive shafts are oriented axially in the Y and X directions, respectively, with each drive shaft having a first end secured to a respective bearing. The drive shafts are arranged for independent axial movement in the Y and X directions and all of the shafts lie substantially in a single plane.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: December 4, 2001
    Assignee: Agere Systems Guardian Corp.
    Inventors: Warren K. Waskiewicz, Kurt S. Werder
  • Patent number: 6321925
    Abstract: A multiple layer hinged enclosure utilizes two sets of parallel hinge pins to be able to stack as many layers as desired. An outer set of hinge pins is utilized by the cover and an inner set of hinge pins is utilized by intermediate layers to form an offset “shingle”effect.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: November 27, 2001
    Assignee: Avaya Technology Corp.
    Inventors: Douglas N. Crouse, Bassel H. Daoud, Jason A. Kay, David S. Kerr, Ronald Marchisin, Ivan Pawlenko
  • Patent number: 6322175
    Abstract: A circuit card enclosure formed of sheet metal with its top and bottom walls having integrally formed circuit card guides. The guides are lanced and formed projections extending inwardly from the top and bottom walls and are spaced from the respective walls by a distance satisfying regulatory requirements for sizes of opening in such enclosures. Additionally, the top and bottom walls have apertures for heat dissipation purposes which likewise satisfy the regulatory requirements. Thus, the enclosure does not require an additional top cover or shield.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: November 27, 2001
    Assignee: Avaya Technology Corp.
    Inventors: Trevor J. Aggus, Matthew J. Gawron
  • Patent number: 6309158
    Abstract: A captive panel fastener has a telescopically adjustable two-part sleeve which provides a mechanism whereby the length of the fastener is selectively adjustable.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: October 30, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Carl P. Bellinghausen, Patrick M. Povilaitis
  • Patent number: 6301424
    Abstract: Apparatus for routing cables in a distribution frame. The apparatus includes a planar panel having takeup spools mounted thereon for the storage of excess lengths of cable. A hollow cylindrical member is mounted for pivoting movement about a pivot axis, where the longitudinal axis of the cylindrical member is parallel to the pivot axis. The cylindrical member has a longitudinally extending gap in its wall. Cables are routed to the panel, are selectively wound on selected ones of the spools to provide slack management, are routed into the cylindrical member, and are routed out of the cylindrical member through the gap.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: October 9, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Liang Hwang
  • Patent number: 6295399
    Abstract: A non-linear temperature compensating device for optical fiber gratings includes first and second expansion members having different coefficients of thermal expansion. The expansion members are elongated in a direction parallel to the fiber grating and levers are secured to both ends of the expansion members. Each lever has a first end flexibly secured to a respective end of the first expansion member and a middle portion flexibly secured to a respective end of the second expansion member. The other end of each lever is secured to a respective end of the fiber grating through a respective quartz block. The dimensions of the expansion members and the quartz blocks, as well as the materials of the expansion members, are selected to achieve a non-linear temperature response which substantially compensates the non-linear temperature response of the fiber grating. The expansion members, the levers and the fiber grating all lie substantially in a single plane.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: September 25, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Jon W. Engelberth
  • Patent number: 6287284
    Abstract: The combination of a bag and tubes connected thereto for use in pharmaceutical manufacturing and for holding health care related solutions is formed entirely of silicone. This avoids the previous problem of the releasing into the held fluids of plasticizers or plastic additives contained in the PVC material making up prior bags.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: September 11, 2001
    Assignee: NPT, Inc.
    Inventor: Stephen Warburton-Pitt