Angled plates for connecting ducts
US5564758A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Jan 17, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L23/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An angular plate for connecting channel shaped flanges at the ends of ducts and including first and second legs each having substantially planar top and bottom surfaces and with an inner end portion of the first leg joined to an inner end portion of the second leg so as to establish an angle therebetween. Defined by the inner end portions is an opening for receiving a connector, the first leg has substantially parallel inner and outer edges extending between an outer end portion thereof and its inner end portion and the second leg similarly has substantially parallel inner and outer edges extending between an outer end portion thereof and its inner end portion. The outer end portion of the first leg defines structure projecting extending transversely from at least one of the inner and outer edges of at least one of the first and second legs. The projection engages a side wall portion of the duct's transverse flange to retain the plate in a desired position prior to crimping of the flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.