Patents by Inventor Thomas A. David

Thomas A. David has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10830302
    Abstract: Vibration isolator systems have continuous frameworks wherein the frameworks are formed for specific applications. The continuous frameworks have linkages and voids formed and located such that frequency, direction and magnitude of vibrations are accounted for. The linkages and voids configuration provides elasticity and compliance such that a wide selection of materials is available for effective use. The continuous framework can be configured to include active elements such as a control circuit. The active elements may further include electric and magnetic field generators. Further, elastic and insulating materials can be easily added to the framework.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 10, 2020
    Assignee: Hutchinson Aerospace & Industry, Inc.
    Inventors: John C. Sailhamer, Robert F. Sharp, Thomas A. David, Gary J. Pivovarov
  • Publication number: 20180347656
    Abstract: Vibration isolator systems have continuous frameworks wherein the frameworks are formed for specific applications. The continuous frameworks have linkages and voids formed and located such that frequency, direction and magnitude of vibrations are accounted for. The linkages and voids configuration provides elasticity and compliance such that a wide selection of materials is available for effective use. The continuous framework can be configured to include active elements such as a control circuit. The active elements may further include electric and magnetic field generators. Further, elastic and insulating materials can be easily added to the framework.
    Type: Application
    Filed: March 27, 2018
    Publication date: December 6, 2018
    Inventors: John C. Sailhamer, Robert F. Sharp, Thomas A. David, Gary J. Pivovarov
  • Patent number: 9510582
    Abstract: The present invention relates to a method and system for providing biological detection. The system includes: at least one polymodal sensor for collectively detecting at least two conditions; and at least one node, each node including at least one of the polymodal sensors. The system also includes at least one data collector; each data collector communicating with one or more of the at least one node, and each data collector storing local information in a local knowledge base and providing a treatment dispensing unit, and at least one server, each server communicating with one or more of the at least one data collector, and each server updating a global knowledge base. The at least two conditions are utilized in detecting the presence of biological activity from either one or both knowledge bases.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: December 6, 2016
    Assignee: GLOBAL IP HOLDING CO., LLC
    Inventors: Thomas A. David, Patricia L. Roberts
  • Publication number: 20150208636
    Abstract: The present invention relates to a method and system for providing biological detection. The system includes: at least one polymodal sensor for collectively detecting at least two conditions; and at least one node, each node including at least one of the polymodal sensors. The system also includes at least one data collector; each data collector communicating with one or more of the at least one node, and each data collector storing local information in a local knowledge base and providing a treatment dispensing unit, and at least one server, each server communicating with one or more of the at least one data collector, and each server updating a global knowledge base. The at least two conditions are utilized in detecting the presence of biological activity from either one or both knowledge bases.
    Type: Application
    Filed: May 23, 2012
    Publication date: July 30, 2015
    Inventors: Thomas A. David, Patricia L. Roberts
  • Patent number: 7395161
    Abstract: The present invention relates to a method and system for providing biological detection. The system includes: at least one polymodal sensor for collectively detecting at least two conditions; and at least one node, each node including at least one of the polymodal sensors. The system also includes at least one data collector; each data collector communicating with one or more of the at least one node, and each data collector storing local information in a local knowledge base; and at least one server, each server communicating with one or more of the at least one data collector, and each server updating a global knowledge base. The at least two conditions are utilized in detecting the presence of biological activity from either one or both knowledge bases.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: July 1, 2008
    Inventors: Thomas A. David, Patricia L. Roberts
  • Patent number: 6325723
    Abstract: A radially soft drive coupling for reducing vibration transmitted across the coupling in certain marine drive applications. The elastomeric elements interconnecting the hub and housing are precompressed by an amount which is at least in the range of 15-20% to produce significant radial and torsional softening of the spring rate of the elastomer. The radial spring rate whose magnitude expressed in lb/in is in the range of between one half and three times the magnitude of said design torque level expressed in lb-in.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: December 4, 2001
    Assignee: Lord Corporation
    Inventor: Thomas A. David
  • Patent number: 6105944
    Abstract: A bonded component (126) adapted for insertion in a housing (120) thus forming a mount (118). The bonded component (126) includes an inner member (128) including a outer periphery (129) having a preferably non-planar profile along its width and an elastomer (130) bonded thereto. The elastomer (130) includes a first arcuate section (142) extending through a first arc (.theta..sub.1) and having first and second lateral faces (150a-c), a second arcuate section (142') extending through a second arc (.theta..sub.2) also having first and second lateral faces (150b-d), notches (148a-d) formed in first and second lateral faces of each of said first and second arcuate sections, the notches only extending part way across each of said sections. In another aspect, the location of the notches (148a-d) are vertically and/or angularly offset from said fore-and-aft axis (146).
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: August 22, 2000
    Assignee: Lord Corporation
    Inventor: Thomas A. David
  • Patent number: 5944297
    Abstract: A mount for isolating a vibrating member from its support. An elastomeric element is made up of four components that are preferably bonded to the inclined outer surface of an inner member and the inclined inner surface of an outer member. One of the inner and outer members is bifurcated and drawing the two halves into mating engagement results in the elastomeric components being preloaded simultaneously in compression and shear. The elastomeric element is preferably formed with portions which snub movement in each of three orthogonal directions. The dimensions of the pair of elastomeric components above or below the vibrating member may be different than the other pair since the greater compression strain on one pair of components will make its stiffness characteristics more critical to determining the effective stiffness of the mount.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: August 31, 1999
    Assignee: Lord Corporation
    Inventors: Wallace C. Flower, Paul J. Balczun, Thomas A. David, Holly M. Carlson, Ulrich A. Kuester
  • Patent number: 5842687
    Abstract: A bushing style mount with low stiffness in two directions oriented with one of the low stiffness directions vertically to provide better isolation. Two elastomeric layers are bonded to two non-parallel surfaces of an inner member, on the one hand, and to a pair of plates on the other. Each of the plates has a contoured, non-planar configuration which increases the axial stiffness of the mount so that the truck cab's lateral motion is minimized. The inner member's non-parallel surfaces are also non-planar, preferably matching the non-planar configuration of the plates, such that the bonded elastomer is deflected into a vee configuration, for example. The inner member with the two elastomeric layers bonded thereto with the two plates bonded, in turn, to the outer faces of the elastomer, form a subassembly that is installed into a generally cylindrical housing. The housing and the outside faces of the plates have a mating contour which provides an alignment feature.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: December 1, 1998
    Assignee: Lord Corporation
    Inventor: Thomas A. David
  • Patent number: 5725430
    Abstract: A drive coupling is fail-safed by providing an inner metallic member with a pair of machined opposing flat surfaces that can engage a pair of pins that are positioned in pockets in the intermediate elastomeric member. These pins are anchored in place with respect to the outer housing by staking the ends of the pins, or the like.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 10, 1998
    Assignee: Lord Corporation
    Inventors: James R. Barickman, Thomas A. David
  • Patent number: 5651535
    Abstract: A mounting assembly (20) which includes dissimilar radial spring rates in the various radial directions by varying the socket geometry and dimensional characteristics of a receiving member (22) for accepting a standard round cross-section, center-bonded mounting (21). A reduction in spring rate in the range of between 1.25 and 2.5 times can be achieved by modifying the socket geometry to provide superior lateral vibration isolation, yet, a standard center-bonded mounting still can be utilized providing cost effective applications.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: July 29, 1997
    Inventor: Thomas A. David