Fence Post Insulators Patents (Class 174/158F)
  • 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: 5412158
    Abstract: An electric wire insulators for connection with a T-shaped corner fence post is formed by a generally U-shaped rigid mounting member having parallel legs transversely spanning a T-shaped post. A pair of U-shaped bracket members each journalling a dielectric spool are provided with a threaded rod rigidly connected with the bight portion of the respective U-shaped bracket and threadedly entering the respective mounting member leg for impinging the mounting member on the T-shaped post. One of the U-shaped brackets may be angularly rotated about the axis of its threaded rod for disposing the axis of one dielectric spool normal to the axis of the other dielectric spool.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: May 2, 1995
    Inventor: M. Deon Yearwood
  • Patent number: 5085409
    Abstract: A cap mountable on top of a post connects to, holds and supports, a pair of wires. The cap guards sharp edges at the post top to prevent accidental contact with people or livestock. The cap is readily visible as a marker, a reflector or a color coded sign. A portion of the cap fits closely to the upper post while a crown portion projects thereabove and a bill portion projects outwardly therefrom. The crown and bill portions each define a cavity longitudinally aligned for holding a wire adjacent the post. A narrow throat having a least dimension slightly larger than the diameter of the wire to be held extends laterally from the cavity to a flared mouth that further extends and opens in an upwardly direction. A wire can be moved laterally from a position adjacent the flared mouth, through the narrow throat, to a position within the cavity and can be removed therefrom in a reverse manner.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: February 4, 1992
    Inventor: Franklin W. Teixeira
  • Patent number: 5063274
    Abstract: A plastic insulator for holding electrified wire comprises a support for an electrified wire and a connector device for selectively connecting the support to structures of different types. The connector device includes arms which have fastener receiving holes or apertures by means of which the support may be connected to a wooden post structure with separate fasteners. The arms also have oral apertures by means of which the support may be connected to a non-conductive rod structure without separate fasteners.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: November 5, 1991
    Assignee: ITW Plastiglide
    Inventor: John I. Johnson
  • Patent number: 5032693
    Abstract: The electric fence insulator of linear polyethylene plastic includes a body having a rear portion for attaching the body to a fence post. Forwardly of the body is a clip unit having an upper latch mechanism. More specifically, the clip unit includes a first panel integrally attached to the body and a second panel resiliently connected at its lower end to the lower end of the first panel through the agency of a bight portion. The latch mechanism includes an upwardly directed keeper portion having an angled edge thereon and a hook portion having an angled edge thereon, the angled edges being vertically overlapped with respect to each other so that a latching engagement can be effected by manipulating a tab with one's fingers, the tab projecting upwardly from the hook portion. The latch mechanism also includes a rib formed in the hook portion which fits in a channel formed in the keeper portion for preventing slideable movement between the overlapping edges of the hook portion and the keeper portion.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: July 16, 1991
    Assignee: North Central Plastics, Incorporated
    Inventors: Ronald H. Langlie, Jon A. Berg
  • Patent number: 4965413
    Abstract: The electric fence insulator of linear polyethylene plastic includes a body having a rear portion thereon for attaching the body to a fence post. Forwardly of the body is a clip unit having an upper latch mechanism. More specifically, the clip unit includes a first panel integrally attached to the body and a second panel resiliently connected at its lower end to the lower end of the first panel through the agency of a bight portion. The latch mechanism includes an upwardly directed keeper portion having an angled edge thereon, the angled edges being vertically overlapped with respect to each other so that a latching engagement can be effected by manipulating a tab with one's fingers, the tab projecting upwardly from the hook portion. When latched, the electric fence insulator securely holds a braided tape-type conductor, yet permitting the release of the conductor when the tab is again manipulated to unlatch the mechanism.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: October 23, 1990
    Assignee: North Central Plastics, Incorporated
    Inventors: Ronald H. Langlie, Jon A. Berg
  • Patent number: 4905968
    Abstract: An insulator for an electric fence comprising a separate clip part and a base support for connecting a woven wire electric conductor to a variety of fence posts. The clip part snap fits over a fiberglass fence post with the electric conductor retained therebetween. To connect the electric conductor to either a metal or wood fence post the base is first secured to the post either by bands or by nails. The clip part is then snap fitted over the base with the electric conductor retained therebetween.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: March 6, 1990
    Assignee: Boundaries Unlimited, Inc.
    Inventors: David L. Eby, Wayne A. Stockman
  • Patent number: 4883923
    Abstract: The electric fence insulator is of linear polyethylene. The insulator includes a vertical panel having a first L-shaped clip thereon providing a downwardly directed prong. A pair of laterally spaced L-shaped clips provide a pair of upwardly directed prongs each having a rib extending therealong. The ribs render these last-mentioned prongs relatively rigid with respect to the downwardly extending prong. The downwardly extending prong has its lower end at an elevation beneath the elevation of the upper ends of the upwardly extending prongs to assure retention of an electric fence conductor by reason of the overlapping prongs.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: November 28, 1989
    Assignee: North Central Plastics, Incorporated
    Inventors: Ronald H. Langlie, Jon A. Berg
  • Patent number: 4866218
    Abstract: An adaptor for converting an electric fence post insulator from a wire electric conductor support to a tape conductor support. The adaptor connects to the wire holding fingers of the insulator.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: September 12, 1989
    Assignee: Dare Products, Inc.
    Inventor: Robert M. Wilson, Jr.
  • Patent number: 4792254
    Abstract: Unitary fence clip formed from a resilient wire having a fence standard or post engaging coil region and two arms extending therefrom. One of the arms from one end of the coil region includes at least a partly formed loop and the other of the arms from the other end of the coil includes a member engageable in the at least partly formed loop. The member engageable in the partly formed loop when so engaged defines a closed zone between the arms and the coil through which a fence wire or the like can be located.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: December 20, 1988
    Assignee: Wrightson NMA Limited
    Inventor: Conrad M. Platten
  • Patent number: 4717123
    Abstract: A clip assembly is formed by joining two identical clip members, each having a body portion with a bore therethrough, a pair of protrusions integrally formed on one end of the body in alignment with the bore, a hook portion on the body and a plurality of teeth lengthwise on each protrusion for ratchet engagement with the teeth on the opposed pair of protrusions as the numbers are fitted together.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: January 5, 1988
    Assignee: ITW New Zealand Limited
    Inventor: Andrew N. Wrigley
  • Patent number: 4692567
    Abstract: An electric fence holder. Two embodiments can be produced from a common mold cavity. Both embodiments comprise a strap formed of resilient plastic with a wire retaining bracket formed at the center. The first embodiment is longer than the second and has clamps at its ends for engaging the strands of an existing fence. The second embodiment, formed by blocking the outer portions of the mold cavity, has holes in its ends for mounting the strap on a stake that has been driven into the ground. In both embodiments an electrically conductive wire is held by the wire-retaining bracket out of grounding contact with the existing fence or stake. Flexing either strap into a bow for installation locks the conductive wire in place.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: September 8, 1987
    Inventor: Donald L. Crum
  • Patent number: 4680428
    Abstract: An electric fence insulator cap for mounting on U-posts of varying flange tip to flange tip widths and varying bight to flange depth in either of two 180.degree. oriented positions. The electric fence wire is held in a pair of slotted lugs for simple installation. The cap top is generally sloped to deflect rain with a central flat surface for impacting installation on the fence post.
    Type: Grant
    Filed: August 22, 1986
    Date of Patent: July 14, 1987
    Assignee: Dare Products, Inc.
    Inventor: Robert M. Wilson, Jr.
  • Patent number: 4623756
    Abstract: An electric fence insulator cap for mounting on various weight and flange configuration T-posts in any of four 90.degree. spaced positions. The electric fence wire is held in a pair of spaced slotted lugs for simple installation. The cap top is generally sloped to deflect rain with a central flat surface for impacting installation on the fence post.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: November 18, 1986
    Assignee: Dare Products, Inc.
    Inventor: Robert M. Wilson, Jr.
  • Patent number: 4599488
    Abstract: A molded one-piece electric fence post insulator which can be installed on a flat or round wood post with a single nail. A forward planar post engaging panel has a vertically extending wing at each lateral side. The wings extend forwardly of the panel plane from vertical hinge lines so that as the insulator is nailed against a round post, the wings engage the post to firmly hold the insulator against twisting, and as the insulator is nailed against a flat post, the wings fold rearwardly along the hinge lines presenting planar contact of the insulator with the post.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: July 8, 1986
    Assignee: Dare Products, Inc.
    Inventor: Robert M. Wilson, Jr.
  • Patent number: 4580767
    Abstract: An insulator for supporting a conductor of an electric fence on a support post in which the insulator is an elongated sleeve formed of a dielectric plastic material. The sleeve has a bore which slidably receives the conductor therein and is formed with a plurality of ribs which extend longitudinally along the conductor and in a radially outwardly extending direction. The ribs are formed integrally with the sleeve and of the same dielectric plastic material. Two of the ribs abut against the fence post to position the sleeve whereby at least one of the ribs extends outwardly from the sleeve. This outer rib is indented by the web portion of an attachment staple, the legs of which are embedded in the post and trap the sleeve therebetween. This indentation of the outer rib prevents the sleeve from sliding along the conductor and out of contact with the post without the use of any fasteners that pierce the insulator sleeve body.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: April 8, 1986
    Assignee: Lifetime Fence Company
    Inventor: Robert E. Zimmerman
  • Patent number: 4520231
    Abstract: A safety cap having a body with integral inwardly projecting portions for providing resilient contact between the safety cap and a T-shaped fence post when the safety cap is placed thereover. The safety cap is also provided with means for supporting an electric wire and the inwardly projecting portions are located so that the safety cap may be placed in a desired one of two directions.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: May 28, 1985
    Inventor: Leslie A. Hubbell
  • Patent number: 4355201
    Abstract: An electric fence wire mounting structure for supporting a highly tensioned and electrically charged wire from a wooden fence post at either a corner or at the end of a line of fencing which includes a strap of electrically non-conductive material and an elongated metal retainer which are held in engagement with each other and are bendable as a unit to engage the surface of a cylindrical fence post. The mounting structure is fastened to the post by metal fasteners such as nails spaced from the metal strap.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: October 19, 1982
    Inventor: Robert M. Wilson, Sr.
  • Patent number: 4318088
    Abstract: A security fence system in which single-strand wires are arranged in pairs and stretched between conventional fence posts. Electrical current is passed through the pair of wires which are arranged such that upon disturbing the wires by attempting entry into the fenced area the current path will be altered, the condition sensed by a detection device, and an alarm is set off.
    Type: Grant
    Filed: November 23, 1979
    Date of Patent: March 2, 1982
    Inventor: Kent Hunter
  • Patent number: 4263477
    Abstract: An electric insulator for guiding and supporting an electric fence wire. The insulator comprises an elongated body of electrical insulating material and has a mounting means located at one end of the body for mounting the body upon a fence post in an outwardly projecting manner. An upright abutment member is fixed on the opposite end of said body and carries retainer tab means. The tab means project from said abutment in a direction generally toward the mounting means.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: April 21, 1981
    Assignee: Dare Products, Inc.
    Inventor: Robert M. Wilson, Sr.
  • Patent number: 4150814
    Abstract: A fence post and an insulator holder for an electric fence. A post has an insulator holder mount on its normally upper end portion. An insulator holder is mountable with the post in a depending relation. An insulator is mounted in the insulator holder and it in turn mounts a wire. The fence post and insulator holder is constructed and adapted to be used with other similar fence posts, insulator holders, insulators and a wire to form an electric fence. In the fence the posts are positioned in an alternating fashion on opposite sides of the wire. The insulator holders are positioned in an opposed relation on opposite sides of the line of the fence and insulators mount the wire.
    Type: Grant
    Filed: November 15, 1974
    Date of Patent: April 24, 1979
    Inventors: Ruth D. Warren, Stephen F. Warren
  • Patent number: 4070007
    Abstract: Versatile fence posts are provided with improved wire engaging lugs. These wire engaging lugs permit easy assembly of electric wire fence and can also be used for line fence, with barbed wire, or with woven wire fabric.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: January 24, 1978
    Assignee: United States Steel Corporation
    Inventors: Dale R. Minor, Byron W. Rose, William R. Vivian
  • Patent number: 4061873
    Abstract: A one-piece corner post insulator of high density polyethylene for electric fences includes a relatively rigid U-shaped body having a spring arm extending from the end of one leg of the body towards the end of the other leg thereof. The spring arm has a hooked end releasably engageable with a keeper formed on the said other leg. An appropriately located hole in the rigid body permits one end of an anchor wire to be threaded therethrough and the other end looped over the corner fence post. The electric fence wire can be pressed between the hooked end and the said other leg into the opening formed by the spring arm and rigid body, and then the hooked end snapped into engagement with the keeper so that the electric fence wire is held captive.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: December 6, 1977
    Inventors: Albert T. Berg, Jr., Howard Langlie
  • Patent number: 4046356
    Abstract: Versatile plastic fence posts are provided by combining a front flange, rear flange and web with an integral support plate. Wire engaging lugs permit easy assembly of electric wire fence. The posts can also be used for line fence, with barb wire, or with woven wire fabric.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: September 6, 1977
    Assignee: United States Steel Corporation
    Inventor: Byron W. Rose
  • Patent number: 4028489
    Abstract: A shell-like all plastic insulator has an angled surface formed with a flat boss having a nail hole extending therethrough so that a nail can be driven into a wooden post in order to securely attach the insulator thereto, the boss having a width such that the nail can later be pulled out with a claw hammer and the insulator re-used. Rearwardly spaced ribs act as cleats against the post to prevent the insulator from rotating about the nail. Jaws or hooks for holding the electric fence wire project forwardly and are at a location such that the weight of the wire does not tend to pull out the nail.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: June 7, 1977
    Inventors: Albert T. Berg, Jr., Howard Langlie
  • Patent number: 3994478
    Abstract: A portable electric fence post is disclosed for supporting a conventional electric fence wire to provide an enclosure for livestock which is easily moved and stored, said portable electric fence post includes a vehicle tire casing which lays on a side wall to form a ground support, two support members formed of concrete reinforcing rod having lower ends bent transverse to the main portion of the support member and having upper ends which are bent outwardly relative to the lower ends thereof, a post member similar to the support members except the upper end thereof is longer than the upper ends of the support members and forms the post which supports the electric fence wire, and a rubber sleeve whereby the portable electric fence post is formed by inserting the lower ends of the support members and the post member at equally spaced apart positions into the upper side wall of the tire casing and bringing the upper ends of the members together to form a tripod with the rubber sleeve surrounding a portion of the
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: November 30, 1976
    Inventor: William Specht
  • Patent number: 3980277
    Abstract: There is disclosed an electrified fence for blocking the passage of animals. This fence comprises a plurality of posts, at least one of which includes a power supply. One or more conductor wires are connected to the power supply and strung from post to post. Each of these conductor wires consists of a metal ribbon coated on both sides with insulation material but leaving exposed the lengthwise edges of the ribbon.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: September 14, 1976
    Assignee: Nitro-Nobel A.B.
    Inventor: Bertil Petrus Enoksson
  • Patent number: D248750
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: August 1, 1978
    Inventors: Howard Langlie, Albert T. Berg, Jr.
  • Patent number: D248850
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: August 8, 1978
    Inventors: Albert T. Berg, Jr., Howard Langlie