Patents by Inventor Ralph E. Hopkins

Ralph E. Hopkins 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).

  • Publication number: 20100300812
    Abstract: Described herein are devices and methods for transporting a plurality of palletless product units at a single time. A palletless product handling vehicle comprising two clamping pads capable of being positioned on either side of a plurality of product units maintained in side-by-side relation can be used to transport the product units during manufacturing, distribution, and storage processes. The clamping members can be maintained at a neutral camber, open to a distance of at least 96 inches, and close to a distance of about 28 inches or less. As a result of the camber, the improved mobility of the clamping members, and the improved clamping pads, two or more palletless product units can be transported in side-by-side relation at one time without causing damage or creasing to the product units. Thus, more efficient and cost-effective transportation of product units and product storage can be achieved.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: Georgia-Pacifica Consumer Products LP
    Inventors: Jack F. Hall, Ralph E. Hopkins
  • Patent number: 6615681
    Abstract: A hybrid wafer gyroscope includes a combination of micro-machined components and traditional electromechanical components to form a miniature gyroscope having a high degree of stability. The gyroscope includes a rotor, gimbal, flexures, and stop cutouts micro-machined out of one or more layers of silicon, forming a unitary, planar, and disk-shaped rotor subassembly, which spins about a drive shaft.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: September 9, 2003
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Lyle J. Jenkins, Ralph E. Hopkins, Kaplesh Kumar, Paul Greiff, Edmund R. Foster, Richard M. Walker, Richard H. Coco, Anthony M. Moscaritolo
  • Patent number: 5952574
    Abstract: Trenches which reduce or eliminate force and sensitivity associated with proof mass motion normal to the substrate as a result of voltage transients is disclosed. The trenches provide increased separation between interleaved comb electrodes and the substrate, and thereby also reduce the comb lift to drive ratio. The trenches are typically formed directly below the interleaved comb electrodes, but may also be formed below other suspended portions. Trench depth is from 6-10 microns and provides a comb electrode to substrate separation of approximately 8.5-12.5 microns.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: September 14, 1999
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Marc S. Weinberg, Steven T. Cho, Ralph E. Hopkins, III, Lance C. Niles, Anthony S. Kourepenis, Eric M. Hildebrant, Paul A. Ward
  • Patent number: 5656785
    Abstract: A micromechanical contact load force sensor is disclosed. The force sensor comprises an array of capacitive load cells on a substrate. The force sensor is able to sense high loads, on the order on 10.sup.9 N/m.sup.2, and distribute the load over a suitable number of the cells of the array while minimizing crosstalk between adjacent cells. The force sensor is useful in biological and robotic applications.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: August 12, 1997
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Christopher V. Trainor, Steve T. Cho, Ralph E. Hopkins, III