US 2006/0214328 A1 · Method of manufacture of a nut and tail assembly

Abstract

A nut and tail assembly and method of manufacture including a nut having a first end and an inward flange at the other end, a longitudinal cylindrical hollow body having a first end and a second end at which is located an outstanding flange and a circular longitudinal sleeve. The sleeve extends along said sliding surface and has a flange at a first end abutting against the body flange. A stop is located between the ends of the body and defines a cavity sliding surface generally parallel to the longitudinal body between the stop and flange. The nut inward flange extends into the body cavity and is of large enough diameter to be able to slide on said body sliding surface, but small enough to be held within said cavity defined between said stop and sleeve flange. Projections on the sleeve flange assist in locating the sleeve relative to the nut during the moulding process.

Claims18

Dependent claims

A method of manufacture of a fitting with an inner member having a sleeve and an outer member that is rotatable over said sleeve, the method including the steps of:

a) making the outer member to a shape that includes a radially inturned annular flange at one end and an axially extending portion having an internal thread,
b) placing a sleeve within said outer member, said sleeve having a radial outwardly extending annular flange, said sleeve flange abutting against said outer member flange and extending longitudinally away from said internal thread,
c) positioning the outer member and sleeve onto an axially aligned male portion of the moulding die and within two female portions;
said male portions including a plurality of locating pins engaging said sleeve;
d) closing the moulding die thereby placing the outer member and sleeve in their final position and establishing a moulding cavity within which is located the outer member and sleeve, part of the surface of said cavity defined by the outer surface of the sleeve annular flange, part of which is defined by the sleeve inner surface, part of which is defined by inner surfaces of the female die portions, and part of which is defined by surfaces of the male die portions.

2 more elements

A method of manufacture of a fitting with an inner member having a sleeve and an outer member that is rotatable over said sleeve, the method including the steps of:

a) making the outer member to a shape that includes a radially inturned annular flange at one end and an axially extending portion having an internal thread,
b) placing a sleeve within said outer member, said sleeve having a radial outwardly extending annular flange, and having one or more locating projections extending outwardly away from said annular flange in a direction parallel to a longitudinal axis of the sleeve;
c) abutting the one or more projections on the flange of the sleeve against said outer member flange;
such that said sleeve extends longitudinally away from said internal thread;
d) positioning the outer member and sleeve onto an axially aligned male portion of a moulding die and within two female portions thereof;
e) maintaining the relative positions of the outer member and the sleeve by way of the one or more locating projections;
f) closing the moulding die thereby placing the outer member and sleeve in their final position and establishing a moulding cavity within which is located the outer member and sleeve, part of the surface of said cavity defined by the outer surface of the sleeve annular flange, part of which is defined by the sleeve inner surface, part of which is defined by inner surfaces of the female die portions, and part of which is defined by surfaces of the male die portions.

4 more elements

Dependencies are inferred from the claim text.

Method of manufacture of a nut and tail assembly

Life of this patent

Method of manufacture of a nut and tail assembly

Life of this patent

Abstract

Claims18