Patents by Inventor Christopher F. Stack

Christopher F. Stack 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: 6381196
    Abstract: A damping entity comprises a matrix of plural viscoelastic particles, typically between 0.05 in and 0.5 in in size, which slightly and fixedly contact one another. The particles generally bond with each other at their contact zones and approximately correspondingly therewith. Suitable particle viscoelasticities are defined by either or both of: (i) an approximate shear modulus range between 10 p.s.i. and 100,000 p.s.i.; and, (ii) an approximate loss factor range between 0.05 and 1.5. The particles which describe the matrix can be essentially identical in terms of size, shape and material composition, or can vary among themselves in one or more of these respects. These properties can be selected uniformly or more or less nonuniformly among the particles of a particular matrix in order to imbue the matrix with desired damping characteristics, e.g., in terms of frequency ranges and temperature ranges.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: April 30, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kenneth D. Hein, Christopher F. Stack, Michael L. Drake
  • Patent number: 5765888
    Abstract: A carrying device removably attachable to a beverage bottle or other container. The device includes a first u-shaped base member which is slid over the neck of the bottle. A second closure member is removably fastenable with the base member to encircle the neck of the bottle therebetween. Each of the base and the closure members include a slot for accommodating a carrying strap, handle or the like, for supporting the bottle or container. In another embodiment, the device comprises a pair of symmetrical clips slid over the neck of the bottle in opposing directions to encircle the neck of the bottle therebetween. Each of the clips include a slot for receiving a carrying strap, handle or the like, which both supports the bottle or container and secures the clips together.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: June 16, 1998
    Inventor: Christopher F. Stack