Process of manufacturing vacuum tips particularly for vacuum handling systems
US4736508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1986 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Dec 10, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The object of the invention relates to the technical sector of microelectronics. According to the process, one starts off with a hollow stainless steel tube (1) of determined diameter; the tube (1) is shrunk for a certain length (1a) and flattened, the remaining part is flattened to form two opposite flat non close joining faces (1b) and (1c); a slot (1b1) is machined in one of the flattened faces (1b) and a hole (1c1) in the other face (1c); a blade (2) provided with an axial notch (2a) on one of its edges is inserted between the two faces (1b) and (1c); through the hole (1c1) formed in one of the faces, a powder is inserted, designed to carry out microbrazing after heating; the assembly is placed in to a furnace to insure bracing of the blade (2) with the flattened parts and simultaneously filling by microbrazing remaining cavities between the blades and the flattened parts; the ends of the flattened gripping parts are rounded off; the flattened gripping areas are ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.