Patent ID: 6102444
Filing Date: 2000-08-15
Classification: F16L

Abstract:
A storz type coupling comprising a pair of similar and complementary coupling units each comprising assembled inner and outer annular parts with the former threaded externally over an axially extending portion thereof and the latter having mating internal threads over an axially extending portion thereof, the inner and outer annular parts being threadedly engaged at their mating portions with the parts assembled and fixedly attached together to form a coupling unit, each inner annular part having front and rear end portions with a pair of similar circumaxially spaced axially forwardly projecting lugs at its front end portion, and each lug having a radially outwardly projecting ear at its free end portion, each outer annular part having a front end portion adjacent and diametrically enlarged relative to its threaded portion and relative to the front end portion of an associated inner part, a radially inwardly open annular groove defined in said diametrically enlarged portion, and said front end portion of said outer annular part also defining a pair of similar circumaxially spaced axially forwardly open notches communicating with the annular groove and located and dimensioned for the rearward axial entry of the lugs on the complementary coupling unit there through and into the groove, relative rotation of the two coupling units on entry of the lugs and their ears into the groove serving to secure the units together in assembled relationship, wherein at least one lug on at least one inner annular part is provided with a small radial flange adjacent its rear end portion and which is located in an aforesaid groove when the inner and outer parts are assembled, said flange serving as a positive stop when engaged by a lug on a complementary coupling unit during the relative rotation of two coupling units as aforesaid.