Apparatus and method of attaching a file fastener to a backboard
US8678061B1 · kind B1 · utility
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2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jul 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1768
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for the attachment of file fastener to a backboard is disclosed. Backboard, usually pressboard is resistant to attachment by hot melt glue. This problem is overcome by providing deflector for increasing the heat retention angled to provide a chimney effect, pressing the fastener at its tangs toward the heating element, and providing an elastic anvil and hammer which distribute force over a longer period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.