Portable vacuum pump for desoldering purposes
US4765229A · kind A · utility
3Cited by
2References
2Claims
0Family size
Inventors
Key dates
| Filing date | Jul 2, 1984 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Jul 2, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K1/018
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable vacuum pump for desoldering applications has a hollow cylindrical barrel forming a vacuum cylinder containing a plunger. The pump has a trigger housing containing a single compression spring. The spring is mounted outside the barrel. No separate return spring is required to hold the trigger in the latched position. The single trigger keeps the spring end out of the barrel and thus out of contact with the soldering debris. This allows more space for the plunger, producing a longer stroke and a higher vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.