Patents by Inventor Derrald H. Chappell

Derrald H. Chappell 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: 5857805
    Abstract: A method for modifying the flow of water in a channel includes creating a flow modifier by first obtaining a plurality of rigid substantially linear posts and obtaining at least one prefabricated brace configured for connection to the posts. The prefabricated brace is configured with two spaced apart rigid anchor ends, one of which has at least two spaced apart anchor sites. A plurality of rigid cross beams connect the anchor ends, with the cross beams and the anchor ends all substantially coplanar. A plurality of vertically extending vanes may also be arrayed across the prefabricated brace. The method also includes driving at least two of the posts into the channel bed and securely connecting at least one prefabricated brace to the posts at the anchor sites. An agglomeration matrix may be positioned against the prefabricated brace for supporting and accumulating materials which amplify the flow modification effect of the prefabricated brace and matrix.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: January 12, 1999
    Inventor: Derrald H. Chappell
  • Patent number: 5678955
    Abstract: A method and system for modifying the flow of water in a channel includes creating a flow modifier by first obtaining a plurality of rigid substantially linear posts and obtaining at least one brace configured for connection to the posts. The brace is configured with two spaced apart rigid anchor ends, one of which has at least two spaced apart anchor sites. A plurality of rigid cross beams connect the anchor ends, with the cross beams and the anchor ends all substantially coplanar. The method also includes driving at least two of the posts into the channel bed and securely connecting at least one brace to the posts at the anchor sites. An agglomeration matrix may be positioned against the brace for supporting and accumulating materials which amplify the flow modification effect of the brace and matrix. The flow modifier modifies the flow of water by creating a weir, by diverting the flow, by reinforcing the channel bank, by creating a favorable habitat for plant life, or by some combination of these effects.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: October 21, 1997
    Inventor: Derrald H. Chappell
  • Patent number: 4582300
    Abstract: A fence support structure for distributing stress forces between fence posts in a fence line. The support structure includes a fence panel having at least one vertical member and at least one structural member attached to the vertical member for transferring the stress forces to other fence posts, the fence panel is disposed substantially in the fence line between a first and a second fence post. The vertical member is secured adjacent the first post by conventional securing means, and the outward end of the structural member is secured adjacent the second fence post. The fence panel may be of unitary construction or it may be comprised of separate, substantially linear components which may be assembled in the field and which may be interconnected by use of slip joints or nut and bolt assemblies. Optionally, some or all of the components may be slidably adjustable in length so as to permit adjustment of the length of the fence panel.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: April 15, 1986
    Inventor: Derrald H. Chappell