Connecting device
US4294476A · kind A · utility
17Cited by
6References
13Claims
0Family size
Inventor
Key dates
| Filing date | Nov 8, 1979 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | Nov 8, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F13/0209
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A device is disclosed relating to sheet metal duct connections, particularly where sections of metal ducts must be joined during construction of metal duct work. A connecting device cuttable to any desired length without substantial waste can be inserted on a segment of duct and joined to a wall or second duct surface having an opening cut to the size of the first duct to which is attached the connecting device. By manual manipulation, the connecting device can then anchor the first duct to the wall or second duct opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.