Method of making an improved hose and tube coupling

Details Method of making an improved hose and tube coupling Method of making an improved hose and tube coupling

1976-12-23

1977-12-27

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

29455R, 29508, 29516, 285256, 285382, B23P 1700

Patent

active

040646149

ABSTRACT:
A method of making an improved permanently attachable coupling shell for use with coupling assemblies adapted for attachment to the end of a hose or tube used for the conveyance of fluids under pressure. The method provides a novel means of providing a plurality of solid integral three-dimensional circumferentially spaced barbs on the inner wall of the shell that controllably pierce the wall of the hose or tube to which the coupling assembly is attached and thereby increases the resistance to detachment of the assembly under pressurized and/or axially strain conditions. Included in the method, is a means of reducing or preventing bulging of the uncompressed outer surface or wall portion of the hose or tube adjacent the compressed portion thereof within the attached shell member.

REFERENCES:
patent: 2147356 (1939-02-01), Scholtes
patent: 2216686 (1940-10-01), Fentress
patent: 2341003 (1944-02-01), Watson
patent: 2427685 (1947-09-01), Midtlying et al.
patent: 2481001 (1949-09-01), Burckle
patent: 2865094 (1958-12-01), Press
patent: 3165338 (1965-01-01), Moss
patent: 3357432 (1967-12-01), Sparks
patent: 3371408 (1968-03-01), Charbonnet
patent: 3413020 (1968-11-01), Johns
patent: 3699625 (1972-10-01), Spencer

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