Mini desktop stapler
US7299960B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2006 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Dec 20, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/11
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A miniature spring-actuated stapler includes a tapered, flat power spring to store energy and eject staples. The power spring pivots at a rear of the stapler housing and includes three co-extensive arms terminating near the striker. As the L-shaped handle of the stapler is pressed, it acts on the center arm of the power spring to deflect it downward while the outer arms deflect upward. The arms are integral at a rear end and the outer arms are linked to the striker at the front. A tapered, flat reset spring disposed generally parallel to the power spring is used to reset the internal action. The housing includes open top and rear areas with the handle providing the enclosure thereof. A base assembly is slidably attached at a bottom of the stapler with an open position exposing a staple-loading chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.