Coupling with extending parting line
US10207320B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jan 2, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of manufacturing a coupling segment including: obtaining a mold having an interior and an exterior, the interior defining an interior surface, the interior surface defining a cavity, the cavity including a border line at an outermost edge of the cavity; placing a material in liquid form into the cavity in the mold; and removing a coupling segment from the mold, the coupling segment formed from the material, the coupling segment including an outer surface, an inner surface, a first end, a second end, and a parting line extending along the border line of the cavity of the mold prior to removal of the coupling segment from the mold, the parting line offset from a top surface of each end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.