Knots and knot tying – Methods
Reexamination Certificate
2000-03-10
2001-07-10
Calvert, John J. (Department: 3741)
Knots and knot tying
Methods
C289S016500, C087S013000, C087S012000, C087S053000
Reexamination Certificate
active
06257629
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT
“Not Applicable”
REFERENCE TO A MICROFICHE APPENDIX
“Not Applicable”
BACKGROUND OF THE INVENTION
This invention relates to an automatic weaving process which could be used for the manufacture of rope hammock beds and other products of the same weave in which a bobbin of rope passes through loops of rope from the same bobbin resulting in the traditional hammock bed weave
FIG. 1
from one continuous rope.
Hammock beds have traditionally been made for centuries by hand from one continuous rope. Workers thread a bobbin of rope through each separate weave of the bed. The process of weaving beds by hand is a strenuous job requiring the placing of a 10 to 15 pound bobbin of rope through a predetermined number of loops in each row to form the traditional hammock bed weave FIG.
1
. Workers are many times bothered by carpal tunnel disorders as well as other muscular and joint stress. By automating the hand weaving process, the operator is free to work on other processes involved in the production of the hammock while the machine does the strenuous work of weaving the bed. There is a resulting savings not only in the prevention of injuries but a significant savings in labor costs.
The below-referenced U.S. patents, disclose embodiments that were at least in-part satisfactory for the purposes for which they were intended. The disclosures of all the below-referenced prior United States patents, in their entireties are hereby expressly incorporated by reference into the present application for purposes including, but not limited to, indicating the background of the present invention and illustrating the state of the art. The U.S. Pat. Nos. of the references are as follows:
3,550,166
5,133,389
4,112,816
5,273,078
4,170,249
5,351,722
4,512,373
5,076,330
SUMMARY
A set of opposing rods makes loops in a section of rope and then twists those loops on their sides in such a manner as to form a spiral tube of rope. A bobbin of the same connected rope is then pulled through this tube. The tube section of rope is then dropped leaving a single strand of rope section A second set of rods engages this new section of rope to make the next tube by pulling it apart and pulling the rope into it that had been dropped from the previous set of rods. In this back and forth manner a weave is created from one continuous rope. It creates a weave typical of rope hammock beds traditionally made by hand.
REFERENCES:
patent: 3550166 (1970-12-01), Kotler
patent: 3592494 (1971-07-01), Pajulaid et al.
patent: 3955602 (1976-05-01), King
patent: 4445417 (1984-05-01), Iijima et al.
patent: 4615256 (1986-10-01), Fukuta et al.
patent: 4651620 (1987-03-01), Lyons
patent: 5273078 (1993-12-01), Kimbara et al.
patent: 5351722 (1994-10-01), Mamiliano
Calvert John J.
Muromoto Jr. Robert H.
Weichelt Joel
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