Tube expander for heat exchanger coil units
US9409225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2014 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Feb 5, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D53/085
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tube expander for heat exchanger coil units according to which a tubular expansion process is conducted. In one aspect, the tube expander includes a fixture, which includes a back unit and first and second door assemblies movably connected thereto. One or more heat exchanger coil units are adapted to be connected to each of the first and second door assemblies. In another aspect, the fixture is adjustable to accommodate different heat exchanger coil units. In yet another aspect, the tubular expansion process is not permitted when the first or second door assembly is closed and a sensor does not sense the presence of a latch bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.