Abstract A flexible length of hose or tubing formed of helical circumferential corrugations and having means integral therewith at one end for threaded connection to another similarly constructed length in end-to-end relation. The internal threads of the helical corrugations at the end having the receptacle or female connection portion are of approximately the same crest and root diameter as the external threads of the rest of the hose to provide a threaded socket for the opposite end of a similarly constructed hose length. A core member is provided for forming the enlarged female socket at one end by the cording process. The core member defines helical threads for progressively enlarging the crest and root diameter of the internal threads of the hose from their smaller dimension to their maximum dimension while maintaining the same pitch to form the female receptacle for the connection.
A flexible elastomeric tubular hose having a substantially uniform wall thickness and having throughout its length helical corrugations defining both internal and external threads, the hose being of uniform diameter throughout the major portion of its length and having an enlarged portion of a plurality of convolutions at only one end of said hose, the crest and root diameters of the internal threads of said enlarged portion being the same dimensions as the root and crest diameters, respectively, of the external threads of said major portion of the hose, the threads being of uniform pitch throughout.
Claim 2
Dependent Claim
96 words
A flexible elastomeric tubular hose having a substantially uniform wall thickness and having throughout its length helical corrugations defining both internal and external threads, the hose being of uniform diameter throughout the major portion of its length and having an enlarged portion of a plurality of convolutions at only one end of said hose, the crest and root diameters of the internal threads of said enlarged portion being the same dimensions as the root and crest diameters, respectively, of the external threads of said major portion of the hose, the threads being of uniform pitch throughout.
Claim 3
Dependent Claim
19 words
An article as defined in claim 1 wherein said enlarged portion comprises at least three convolutions of said corrugations.
Claim 4
Dependent Claim
36 words
An article as defined in claim 1 wherein the crest diameter of the internal threads of said enlarged position is less than the crest diameter of the external thread of said major portion of said hose.