Patents by Inventor David F. Buelow

David F. Buelow 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: 6296233
    Abstract: The invention relates to a retainer clip or latch attached to a fence post, such as a plastic fence post, for use in electric fences, that can be used with different types of fence strand members, and that is operated by hand to permit easy securement and removal of the fence strand members. The clip includes first and second portions which are hingedly attached together at one end and are releasably engageable with each other at the opposite end. The clip defines a loop at one end for holding an elongate fence strand member, such as wire, and an elongated area for holding a broader fence strand members, such as electric tape. The loop and elongated area are separated by a finger which extends from the second portion and into a notch in the first portion. The clips can be directly attached to a head portion of a T-shaped fence post at spaced locations along its length.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: October 2, 2001
    Assignee: North Central Plastics
    Inventors: Jon A. Berg, Ronald H. Langlie, David F. Buelow
  • Patent number: 6131885
    Abstract: A plastic fence post for use in electric fences, which can be quickly and easily adjusted in height to permit changes in the height of the fence, and which can be used with different types of fence strands. The fence post includes an elongated, T-shaped plastic lower post member having one end adapted for insertion into the ground and an opposite end having a T-shaped slot formed therein. A plastic upper member, which can either be an upper fence post or a post cap, includes a T-shaped tongue extending therefrom that is secured within the T-shaped slot so as to secure the upper member to the lower post member. A pin extends through aligned holes in the end of the lower post member and the T-shaped tongue in order to fasten the upper and lower members together. The height of the fence can be increased by disposing the tongue of the upper fence post within the T-shaped slot, and using the pin to secure the posts together.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: October 17, 2000
    Assignee: North Central Plastics, Inc.
    Inventors: Jon A. Berg, Ronald H. Langlie, David F. Buelow
  • Patent number: 5975501
    Abstract: The invention relates to a retainer clip or latch attached to a fence post, such as a plastic fence post, for use in electric fences, that can be used with different types of fence strand members, and that is operated by hand to permit easy securement and removal of the fence strand members. The clip includes first and second portions which are hingedly attached together at one end and are releasably engageable with each other at the opposite end. The clip defines a loop at one end for holding an elongate fence strand member, such as wire, and an elongated area for holding a broader fence strand members, such as electric tape. The loop and elongated area are separated by a finger which extends from the second portion and into a notch in the first portion. The clips can be directly attached to a head portion of a T-shaped fence post at spaced locations along its length.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: November 2, 1999
    Assignee: North Central Plastics
    Inventors: Jon A. Berg, Ronald H. Langlie, David F. Buelow
  • Patent number: D364011
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: November 7, 1995
    Assignee: North Central Plastics, Incorporated
    Inventors: Jon A. Berg, Ronald H. Langlie, David F. Buelow, Larry E. Tiedemann