초록 ▼

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, the male portion likewise having a threaded nipple for insertion into

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, 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.

대표청구항 ▼

A coupler for joining elastomeric hoses, comprising: (a) an outer tubular coupling member having a longitudinal axis and distal and proximal ends; having a nipple at the distal end for sealably seating within a predetermined length of a first elastomeric hose to be joined; with at least a portion of

A coupler for joining elastomeric hoses, comprising: (a) an outer tubular coupling member having a longitudinal axis and distal and proximal ends; having a nipple at the distal end for sealably seating within a predetermined length of a first elastomeric hose to be joined; with at least a portion of the internal diameter of the outer tubular coupling member being of a suitable dimension to telescopically receive an inner tubular coupling member; (b) an inner tubular coupling member having a longitudinal axis and distal and proximal ends; having a nipple at the distal end for sealably seating within a second elastomeric hose to be joined to said first elastomeric hose; at least one annular groove at the proximal end for receiving a ring shaped distortable sealing member; and a plurality of projections on the outer surface of said inner tubular coupling member, the projections circumferentially arrayed on said inner tubular coupling member; the proximal end of said inner tubular coupling member fitting telescopically inside of the proximal end of said outer tubular coupling member; and (c) a substantially tubular locking cap member having a longitudinal axis and distal and proximal ends; having an internal diameter of a suitable dimension to telescopically fit over said inner tubular coupling member such that said locking cap, when fitted over said inner tubular coupling member comes into juxtaposed contact with said outer tubular coupling member after assembly of the cap, the inner tubular coupling member and the outer tubular coupling member; said locking cap additionally having a plurality of substantially longitudinal grooves in the locking cap\s inner surface of sufficient dimension to slideably receive said plurality of projections on said inner tubular coupling member to prevent rotational movement of the inner tubular coupling member with respect to the cap, yet allowing such rotational movement when, after assembly of the cap, the inner tubular coupling member and the outer tubular coupling member, at least a portion of the inner tubular coupling member is pulled along a substantially longitudinal axis for a sufficient distance such that said projections are pulled past the end of said cap, thereby allowing such rotational movement.