Pipeline vehicle
US4537136A · kind A · utility
109Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Jan 25, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The vehicle has front and rear sets of wheels (24) carried on sprung arms (20). Each wheel can be locked by a clutch (26). One set of wheels is locked while a ram (32) is operated, causing the other set of wheels to roll forward. The main body (10) of the vehicle can be rotated relative to the wheels (24) by means of a motor (48) operating via a drive belt (50). The interior of the body (10) is pressurized with inert gas, suitably nitrogen exhausted from the propulsion system which is vented by a one-way valve 38.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.