Device for fixing a vacuum pump
US8016512B2 · kind B2 · utility
1Cited by
24References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Aug 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/75
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fastener system with a coaxial annular flange (14) having through holes (16), each serving to pass a screw (17) for screwing into an associated tapped hole (16) in the wall (2) of a stationary structure. Each through hole (16) has a circularly cylindrical distal segment (16a) followed by an enlarged proximal segment (16b) adjacent to the wall (2) of the stationary structure, allowing the shank (19) of the screw to bend and enabling a corresponding lateral offset (D). This prevents the screw (17) rupturing under high shear forces due to accidental destruction of a vacuum pump rotor while rotating at full speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.