Method and apparatus for roll forming a plurality of heat exchanger fin strips
US6032503A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Nov 23, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F3/027
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are provided for roll forming a plurality of fin strips (10) from a single elongated strip of sheet material (20). The strip (20) includes a pair of adjacent, longitudinal rows (22, 24) of alternating crests (26) and valleys (28), with the crests (26) and valleys (28) of the row (22) longitudinally offset from the crests (26) and valleys (28) of the other row (24) so that the two rows (22, 24) are joined by a plurality of longitudinally spaced discrete connections (30) that define a longitudinal interface (32) between the two rows (22, 24). The connections (30) are broken by displacing the two rows (22, 24) relative to each other to form a pair of fin strips (36, 38), with each fin strip (36, 38) having a side edge (40, 42) defined by the now separated interface (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.