Apparatus for closing pittsburgh seams associated with duct assemblies and other box-shaped members
US10160027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2016 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D39/023
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A vertical Pittsburgh Seam closing apparatus having a base supporting surface, a track mechanism for moving a carriage assembly which holds seam forming members used to close a Pittsburgh Seam, a pair of upper and lower guide members for guiding the duct section into a proper vertical position, and upper and lower clamping members positioned inside the duct section and adjacent the inside portion of the Pittsburgh Seam to be closed, the upper guide members and clamping member being selectively movable and adjustable for accommodating different duct section lengths. In one embodiment, the seam forming assembly includes a plurality of members mounted in vertical arrangement, at least one of the plurality of seam forming members being shaped to initially bend the overhanging edge portion and at least one of the plurality of seam forming members having a substantially V-shaped configuration for closing the Pittsburgh Seam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.