Heavy duty forward acting stapling machine
US5699949A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1996 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Aug 9, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C5/11
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A manually powered fastening tool which stores and instantly releases the energy of a spring such that it may force a staple or other fastener into an object by an impact blow is disclosed. An actuating lever engages a plunger in an upward motion against a spring bias and in a sideways direction in a release motion. An arcing motion of the lever causes an element of the lever to rotate and slide rearward from the plunger and disengage from the plunger, thereby allowing the lever to slide sideways off an angled surface of the plunger. The plunger, once released and under spring bias, strikes a staple and drives the staple out from the tool into the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.