Dust protector
US5087493A · kind A · utility
12Cited by
1References
2Claims
0Family size
Inventor
Key dates
| Filing date | Oct 22, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Oct 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dust protector includes a plurality of pleated units. Each pleated unit has a first and a second hollow truncated cone-shaped member. The converging ends of the first and second truncated cone-shaped members are joined together. The diverging end of the first truncated cone-shaped member has a first flange with annular groove which is engageable with a second flange of the diverging end of an adjacent second truncated cone-shaped member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.