Pneumatically driven rivet insert tool
US4493205A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1982 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Sep 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5377
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Pneumatically powered expansion rivet applicator tools. Each of the tools described herein comprise a rigid body adapted to be manually grasped by the user. First and second pneumatic cavities are housed within the body. Pneumatic coupling means associated with the body supply high pressure air to the first cavity. A fitting associated with the body receives the cylindrical shank of an expansion rivet to be installed by the tool. Fluid flow passageway means interconnect the first and second cavities, and an internal valve permits passage of high pressure air through the passageway between the first and second cavities. Piston means are slidably disposed within the second cavity, and, in response to pressurization of the second cavity, virtually instantaneously contacts associated firing pin means to forceably ram the expansion rivet shank, thereby installing the rivet. In the best mode a tubular handle which is coaxial with the body is moved axially with respect thereto for selectively activating the air valve means to subsequently initiate piston and thus firing pin actuation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.