Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1996-09-19
1998-09-15
Arola, Dave W.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
2851251, 285360, F16L 5500
Patent
active
058068970
ABSTRACT:
Fitting grooves in a frame member 1 are formed so as to create approximately T-shaped cross section with a small opening width, and a connection hole is formed in the bottom of the fitting groove. An attachment section of a fluid-related device has a locking section 20 with a horizontal width less than and a length greater than the width of the opening of the fitting groove, and a seal member that seals the circumference of the connection hole. The Locking section 20 can be attached to and removed from the opening of the fitting groove by inserting it into the fitting groove and rotating it through 90.degree..
REFERENCES:
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patent: 1253065 (1918-01-01), Looze
patent: 2050647 (1936-08-01), Corta
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patent: 3370144 (1968-02-01), Arthur et al.
patent: 3468565 (1969-09-01), Roder
patent: 3480300 (1969-11-01), Jeffery et al.
patent: 4695047 (1987-09-01), Ehrhardt et al.
Nagai Shigekazu
Sugano Koji
Arola Dave W.
SMC Corporation
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