Connection structure and process for connecting eye joints and slender metal pipes
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United States of America Patent
Stats
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Apr 6, 1999
Grant Date -
N/A
app pub date -
Dec 30, 1996
filing date -
Jan 10, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There are provided a connection structure and process for connecting a eye-joint and a slender metal pipe, which is enabled by making the welding operation completely unnecessary to eliminate the working troubles and a fear of cracking or breakage, as might otherwise be caused by deteriorations in the mechanical properties in the vicinity of the connection end portion, which can use the eye-joint body and the metal pipe, as plated with a corrosion-resistance substance or coated with a resin in advance, to improve the productivity drastically thereby to ensure the connection with neither axial nor circumferential movement, and which can connect a metal pipe, if necessary, as having a diameter larger than the width of the eye-joint body. The connection structure comprises: an eye-joint body having an annular groove in its head and two side through holes leading to the annular groove to form parallel flat seat surfaces on the outer circumferences off the through holes, and including a branch pipe protruded integrally from the eye-joint body and having a stepped fitting hole formed in the circumferential side and leading to the annular groove; and a slender metal pipe adapted to have its connection end portion fitted in the fitting hole of the branch pipe of the eye-joint body. An elastic seal ring member is fitted either in the inner circumference of the fitting hole or on the outer circumference of the connection end portion of the metal pipe. The vicinity of the end portion of the branch pipe is caulked together with the connection end portion, after the connection end portion is inserted into the pipe, thereby to effect the connection.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- USUI KOKUSAI SANGYO KAISHA LIMITED
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fukaya, Kazumi | Mishima, JP | 10 | 140 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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