Joseph K Simmonds

US Patent:

42757681, Jun 30, 1981

Filed:

Jun 16, 1978

Appl. No.:

5/915918

Inventors:

E. Gray Riggs - Westerville OH
Joseph K. Simmonds - Columbus OH
Vernon D. Browning - Bucyrus OH

International Classification:

F16L 904
F16L 912
F16L 5500

US Classification:

138104

Abstract:

A longitudinally extending, circumferentially limited member is disposed upon the exterior surface of a tubular object such as hose, which member has a surface appearance contrasting to that of the exterior surface of the tubular object. Indicia is engraved within the surface of the longitudinally extending, circumferentially limited member and is rendered prominently visible by the difference in contrast between the two surface appearances.