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Publication numberUS3614068 A
Publication typeGrant
Publication dateOct 19, 1971
Filing dateMar 30, 1970
Priority dateMar 30, 1970
Publication numberUS 3614068 A, US 3614068A, US-A-3614068, US3614068 A, US3614068A
InventorsKoehl Douglas E
Original AssigneeKoehl Douglas E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable livestock pen
US 3614068 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

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FOREIGN PATENTS 717,600 10/193] Primary Examiner-Dennis L. Ta

France [54] PORTABLE LIVESTOCK PEN ylor 7 Claims, 2 Drawing Figs.

Attorney-Schroeder, Siegfried & Ryan ABSTRACT: A livestock fence of concrete is provided which collectively has sufficient mass to obviate the need for embedded post members and is formed of segments that are light enough to be readily movable. The preferred form utilizes steel reinforcing in the concrete. Joined to the reinforcing rod are metallic members to be used in joining sections of the fence.

256/19 X 256/19 X 256/19 X s11 [50] 56] References Cited UNITED STATES PATENTS 800,427 9/1905 Clough.,........ 8l7,282 4/1906 Stewart..... 1,202,298 10/1916 Loser PORTABLE LIVESTOCK PEN The present invention is directed to the field of livestock pens and is more particularly directed to a portable livestock pen which does not require the use of embedded posts. The entire fence is made of concrete and thus possesses both desirable durability as well a possessing sufficient mass so that it can retain livestock, and yet the individual segments are light enough that they can be readily moved and reassembled in a new location. In the preferred form of the invention, the rail members are provided with vertical slats which are so positioned as to prevent the escape of small animals such as baby pigs, and yet, because of the vertical positioning of the slats, young animals are less likely to be injured by placing a portion of their body between the slats. While the present invention will be usable for a wide variety of animals, it will find particular application in forming enclosures for hogs.

The invention will be most readily understood from a study of the following specifications and drawings, wherein:

FIG. 1 is a perspective view of a post and rail assembly members forming a corner portion of a fence;

FIG. 2 is a side view of a rail assembly member shown partially in section.

It is frequently desired that an enclosure be provided for livestock, and in particular hogs, wherein the enclosure can be readily moved from one area to another. Attributes desired in such enclosure include long life and simple installation. In accordance with my invention, a livestock pen is provided wherein the members are essentially all of concrete, insofar as external surfaces are concerned, thus meeting the requirements of being highly durable. Additionally, the post members are formed with an enlarged base and a narrow column extending from this base, which provides a post that does not require insertion into the ground. The post has sufficient breadth at its base to make it self-supporting and adequate weight to lend stability while still remaining light enough to be readily moved. The rail members are preferably, although not required to be, formed of concrete with rails extending parallel to one another and to the ground. The rail members are interconnected into one contiguous body by vertical slat members, which are also of concrete. The individual rail sections are sufficiently heavy that they, in combination with the post members, provide the mass required to contain livestock, and yet are light enough that they can be readily moved in individual sections for reinstallation at some other point.

Turning now to the figures, there is illustrated in FIG. 1 a post member generally designated I which is formed of a unitary piece of concrete to produce a broadened base section 11 and a vertical support column 12 extending upward therefrom. Where greatest strength and durability are desired, the post member is formed using iron rods or screening for reinforcement thereof, so as to provide additional strength and freedom from breakage. This is shown more clearly in FIG. 2, which shows in partial section a rail assembly member formed of concrete with reinforcing rods therethrough. The post member also has upper and lower bracket members 13 and 14, which are shown as being of an L-shaped steel. The brackets have elongated holes therethrough on both arms of the L so as to permit adjustments of the bracket, both on the post and in conjunction with the rail member, as will be discussed below. The L-shaped brackets 13 and 14 are connectable to the support column 12 by anchoring bolts 15 and 16.

Turning now to FIG. 2, there is illustrated a side view partially in section of a rail assembly member in accordance with the invention. The rail assembly member has an upper rail 21 and a lower rail 22, with a plurality of vertical slat members 23 joining rails 21 and 22. In the preferred form of the invention, use is made of reinforcing rods of steel 24, 25 and 26. It is desirable when using reinforcing rods to ensure that these rods are contained within the concrete to shield them from corrosion due to the weather and to the corrosive waste products commonly found in conjunction with livestock.

Mounting means 27 and 28 are fastened to the ends of the rail member in a spacing such as to cooperate with fastening members 13 and 14 of post member 10. As is illustrated in FIG. 2, the L-shaped brackets have elongated openings therethrough 29 and 30 which provide for adjustments to take into account unevenness of ground and/or sloping of the ground upon which the fence assembly is to be built. In the sectioned portion of FIG. 2 there is also illustrated threaded sleeve inserts 31 and 32, which are of a metal such as iron and which are formed in the rail member at the time the concrete is poured. These threaded metal sleeves may be of such a shape as to be rigidly held within the concrete and thus provide a long life anchoring means for the bracket members such as 27 and 28.

When strong adult animals such as pigs are confined within a pen area in accordance with the invention, the reinforcing rods will prove highly advantageous in providing the needed strength to prevent destruction of the fence members. The metal sleeve inserts 31 and 32 are likely to become loose and break out due to impact of the animals confined in the pen. I have found that this problem can be overcome by welding the sleeve members 31 and 32 to the reinforcing rod 24 as shown at 33. Similarly, whenever sleeve members are used they should be welded or otherwise joined to internal reinforcing wherever greatest durability is desired.

Alternatively, threaded bolt members may be formed in a like manner so as to present a threaded bolt end exterior of the concrete. Such a bolt member can be an extension of the reinforcing rod and continuous therewith. A fastening means such as a nut can then be used to join the rail and post member brackets.

In a similar manner, metallic threaded sleeve inserts may be utilized in post support column 12 to aid in anchoring the L- shaped brackets attached thereto. Likewise, reinforcing rods may be utilized in the post member in a manner analogous to that illustrated in FIG. 2 for the rail assembly manner.

Turning again to FIG. 1, it is readily seen how member 20 cooperates with post member 10 to form a fence. The L- shaped brackets are cooperatively spaced in such a way that they may be readily joined by a pin or bolt through the horizontally disposed arm of the L-shaped brackets. When the ground is uneven or sloping, adjustment is possible to provide for this unevenness. As is also illustrated in FIG. 1, the bracket members connected to support column 12 are on opposite sides of the support column. In the form illustrated in the figure, the rail members extend at right angles to one another from the support column. However, if the enclosure of a shape other than rectangular is desired, total freedom is provided in the pivot form of the bracketing to achieve any angle with respect to the other rail. This includes utilizing the post member in an intermediate position as well as in a comer post position.

While the form shown in FIG. 1 has bracket fastening means on opposite sides of the post, one may also form the post so as to have bracket forming members on all four sides. This permits more symmetric construction than the form illustrated. In any form, as discussed previously, where greatest strength is required the sleeve members should be welded or otherwise formed to the internal reinforcing steel of the concrete member.

It will, of course, be understood that other mounting means may be utilized than the L-shaped brackets described above. Likewise, it will be appreciated that the precise shapes of the various elements may be altered to meet particular needs.


l. A fence for defining a movable livestock pen wherein the individual fence members are of concrete and of an individual weight to be readily movable and wherein the assembled fence is of suflicient weight and stability to obviate the need for embedded posts comprising:

a. concrete post members, said post members each including a broad base portion with a narrow rail support column joined thereto and extending vertically upward from the center of the base portions;

b. concrete rail assembly members intermediate said post members; and

c. connecting means on said post members and said rail assembly members positioned to cooperatively interconnect said members and entirely support the weight of said rail members on said post members.

2. A fence in accordance with claim 1 wherein said post member and said rail assembly member are internally reinforced with steel rods.

3. A fence in accordance with claim 1 wherein said rail assembly members include an upper and lower rail element joined into one unit by a plurality of vertical slats.

4. A fence in accordance with claim 1 wherein said connecting means are L-shaped bracket members having elongated

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US800427 *Jun 5, 1905Sep 26, 1905Henry H CloughComposition post.
US817282 *Feb 10, 1906Apr 10, 1906David C StewartComposition fence-post.
US1202298 *Jan 13, 1915Oct 24, 1916Harry A LoserMold and method for making concrete picket-fences.
US1293138 *Dec 14, 1915Feb 4, 1919Blaw Steel Construction CompanyConcrete fence.
US1503902 *Nov 13, 1920Aug 5, 1924Jones William FConcrete fence
US2771276 *Feb 8, 1954Nov 20, 1956Constance Jr Harry SMetallic railing structure
US3348813 *Apr 11, 1966Oct 24, 1967Jr Earl T HazelettPanel fence construction
US3395489 *Apr 19, 1966Aug 6, 1968Nat Mfg CoFence
FR717600A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3953976 *May 20, 1974May 4, 1976Speidel Foundation & Marine, Inc.Self-supporting wall
US4073478 *Feb 28, 1977Feb 14, 1978Eduardo BermudezFence structure
US4116420 *Apr 19, 1977Sep 26, 1978Earl T. HazelettHorizontal fence construction
US4193584 *Aug 2, 1978Mar 18, 1980Wieser's Concrete Products, Inc.Livestock fence
US4995590 *May 15, 1990Feb 26, 1991Close Gregg VFence post installation
US5645271 *Jul 11, 1994Jul 8, 1997Nunez; Marcos D.Metal fence post with adjustable rail mounting
US6499435 *Apr 17, 2001Dec 31, 2002Donald A. MarkhamPortable corral
US6802496Dec 9, 2002Oct 12, 2004John PretaFence bracket system and fence system using the fence bracket system
US7032890 *Feb 25, 2003Apr 25, 2006John SvalbePlastic fence
US7121530May 28, 2004Oct 17, 2006John PretaFence bracket system and fence system using the fence bracket system
US7210427Sep 8, 2004May 1, 2007Dillman Frank DPortable livestock panel system
US7722283 *Sep 29, 2006May 25, 2010The Hong Kong Polytechnic UniversityBollard with connecting mechanisms for connecting railings
EP0136387A1 *Sep 30, 1983Apr 10, 1985Georges HarhouraTechnical barrier, especially for security enclosures
U.S. Classification256/19, 256/24
International ClassificationE04F11/18
Cooperative ClassificationE04F11/181
European ClassificationE04F11/18F