Apparatus for folding sheets for insertion into an envelope
US5378222A · kind A · utility
Inventor
Key dates
| Filing date | May 24, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | May 24, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2402/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus is provided for folding either of two size sheets of paper, such as letter and legal size paper, for insertion into an envelope. The apparatus includes a planar base and a pair of opposed structures against which a sheet of paper to be folded may be placed for positioning of the sheet. A folding bar is mountable at one several preselected positions on the base such that the sheet to be folded passes between the folding bar and the base. Preferably, a creasing bar is provided for applying pressure to a surface of the sheet to be folded causing the sheet to be pressed tightly against the folding bar such that a crease is formed across the sheet at a preselected location corresponding to the first fold of the sheet, The base and the folding bar are provided with a detent mechanism such that the folding bar may be readily, moved to the appropriate position for creation of the initial crease and the particular size of paper to be folded. A method of folding the sheets of paper is also disclosed. The pressure applied to form the initial crease may be formed in various manners, including the application of finger pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.