Pipe joint for connection of corrugated tube
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United States of America Patent
Stats
-
Aug 15, 1995
Grant Date -
N/A
app pub date -
Sep 30, 1994
filing date -
Oct 1, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A pipe joint for connecting a flexible corrugated tube includes a joint body, a sleeve received in an axial through bore in the joint body for holding a free end of the flexible corrugated tube, and a nut threadedly fitted in a threaded portion of the joint body. A shoulder is formed on an inner surface of the through bore, and has an air-tight surface directed toward one end of the through bore. A tapering surface, decreasing in diameter progressively toward the shoulder, is formed on the inner surface of the through bore in adjacent relation to the shoulder. An annular groove of a generally channel-shaped cross-section is formed in the inner surface of the through bore in adjacent relation to the tapering surface. The sleeve has projections extending radially inwardly from one end thereof facing said shoulder, the sleeve having an end surface at the other end thereof. The projections are pivotally movable resiliently relative to the remainder of the sleeve so as to be received in a predetermined one of valleys in the outer peripheral surface of the corrugated tube. The nut has a holding portion for holding outer surfaces of the projections of the sleeve in registry with the annular groove. The nut has a flange surface for abutment against the end surface of the sleeve.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HITACHI METALS LTD | 1-2 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100 JAPAN | |
SANKO GAS SEIKI LTD | 17-14 SAKAECHO-1-CHOME KAWAGUCHI-SHI JAPAN | |
TOKYO GAS CO LTD | 5-20 KAIGAN 1-CHOME MINATO-KU TOKYO 105 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Anamizu, Takashi | Tokyo, JP | 1 | 40 |
Fujiyoshi, Minoru | Kuwana, JP | 2 | 66 |
Hasegawa, Michio | Joetsu, JP | 17 | 861 |
Kanomata, Shinichi | Yokohama, JP | 2 | 67 |
Saito, Morio | Tokyo, JP | 2 | 67 |
Satoh, Fumitaka | Tokyo, JP | 6 | 110 |
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Maintenance Fees
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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