Pipe joints or couplings – Essential catch – Leaf spring
Patent
1994-05-12
1995-04-04
Reese, Randolph A.
Pipe joints or couplings
Essential catch
Leaf spring
285921, F16L 3500
Patent
active
054030463
ABSTRACT:
A coupling device especially adapted for the joining of polyethylene underground irrigation hoses, having a female portion, a male portion and a lock cap, the female portion having a threaded nipple for insertion into a hose end and several tabbed prongs that snap into holes in the locking cap, the male portion likewise having a threaded nipple for insertion into a second hose end and several lugs that fit into grooves in the lock cap, enabling the male portion to be pulled out of the assembly for a limited distance, for ease of fitting into difficult hose coupling situations. The presence of the lugs prevents rotation of the male portion with respect to the cap until the male portion is pulled out of the assembly far enough that the lugs are pulled past the end of the locking cap.
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Imperial Brass Manufacturing Co. Bulletin 3061-B, 1956.
Chun Shackelford Heather
Grassler Frank P.
Reese Randolph A.
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