Couplings for water fed poles
US7748755B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Oct 17, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/2445
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling for joining a first pole section and a second pole section is provided. The coupling includes a male portion secured to the first pole section and a female portion secured to the second pole section. The male portion has a first male guide, a second male guide, and a first threaded section between the first and second male guides. The female portion has a first female guide, a second female guide, and a second threaded section between the first and second female guides. The guides are spaced from one another and from the first and second threaded sections so that the first male and female guides are engaged with one another and the second male and female guides are engaged with one another before the threaded sections engage with one another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.