Animal husbandry – Animal controlling or handling – Hitching or tethering
Reexamination Certificate
1999-11-02
2001-11-13
Jordan, Charles T. (Department: 3644)
Animal husbandry
Animal controlling or handling
Hitching or tethering
C119S791000, C119S769000
Reexamination Certificate
active
06314916
ABSTRACT:
CROSS REFERENCES TO RELATED APPLICATION
None.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable.
BACKGROUND OF THE INVENTION
1. Field of the Invention
In most general terms, the present invention relates to restraining devices, especially those used to tether animals in a particular region. More particularly, it pertains to a new rotary animal tethering device. Even more particularly, the present invention relates to a rotary animal tethering device that, although anchored essentially permanently into the ground or other substratum, allows easy removal of the rotating head.
2. Description of Related Art
The following patents are known, and arguably related to the rotary above-ground portion of the present invention:
Patent #
Issue Date
Inventor
4,620,506
November 4, 1986
Stubbs
4,334,503
June 15, 1982
Carey
5,732,659
March 31, 1991
Wiggins
5,957,092
September 28, 1999
Colsch
5,022,351
June 11, 1991
Daniels
5,161,487
November 10, 1992
Miller
4,491,091
January 1, 1985
Satterfield
4,800,843
January 31, 1989
Wendling
3,921,589
November 25, 1975
McGahee
3,703,160
November 21, 1972
Biddle
With respect to the anchoring system of the present invention, the following patents are known and arguably related:
5,226,829
July 13, 1993
Jones
4,027,856
June 7, 1977
Kingsly, et al.
4,553,358
November 19, 1985
Deike
3,969,853
July 20, 1976
Deike
4,921,200
May 1, 1990
Moraly
BRIEF SUMMARY OF THE INVENTION
U.S. Pat. No. 4,620,506 issued to Stubbs (the “Stubbs Patent”) discloses an externally threaded above-ground stake covered by an internally threaded tube, which in turn is surrounded by a freely rotatable cylinder having an eyelet for attachment of a tethering cord; a washer and nut holds the three-layered tethering system together. Although the Stubbs Patent allows a slight axial (upward) movement of the cylinder on the interior threaded tube, not much of said movement (if any) exceeds the length of said tube; otherwise, the cylinder would lose its positioning on the tube. Moreover, the Stubbs Patent does not disclose a rotary tethering device that is freely removable.
One primary object of the present invention is to provide a tethering system sufficiently anchored.
Another object is to provide a rotary tethering system that allows axial movement without disrupting the integrity of its bearing/bushing elements.
Another object of the invention is to provide a rotary tethering system that, once anchored securely in the ground, will allow detachment of the above-ground portion to allow for routine maintenance in the tethering region, or allow re-tethering to another anchored portion in another tethering region.
Another object is to provide a rotary tethering system that is relatively easy and economical to manufacture.
Another object is to provide a rotary tethering system that is virtually maintenance free.
Other objects of the invention will become apparent after reading the remainder hereof.
REFERENCES:
patent: 417617 (1889-12-01), Williams
patent: 3590783 (1971-07-01), Purgett
patent: 3921589 (1975-11-01), McGahee
patent: 4491091 (1985-01-01), Satterfield
patent: 4620506 (1986-11-01), Stubbs
patent: 4664503 (1987-05-01), Ibuchi
patent: 5226829 (1993-07-01), Jones
patent: 5732659 (1998-03-01), Wiggins
patent: 5957092 (1999-09-01), Colsch
Calhoun Joe D.
Jordan Charles T.
Nelson Judith A.
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