Patents by Inventor Purita R. Angeles

Purita R. Angeles 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: 4687294
    Abstract: A fiber optical cable is designed for good thermal stability over a broad temperature range and with low flame-spreading and low smoke-producing characteristics for interior use, such as in plenum areas. Optical fibers are each buffered with a layer of resilient polymeric material with a broad dynamic temperature range. A nonburning serving shields the buffer layer from flame, and a jacket of polymeric material surrounds the serving. The jacketed cables are bundled with a like number of strength members formed of a material with a coefficient of thermal expansion roughly matched to that of the optical fibers. The strength members and jacketed fibers are wrapped in tape, and the bundled components are tightly jacketed by a tube of polymeric material. The jackets and outer tube are formed of low flame-spreading, low smoke-producing fluorocarbons, whereby the cable meets U.S. requirements for plenum use.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: August 18, 1987
    Assignee: Cooper Industries, Inc.
    Inventor: Purita R. Angeles