Formation of hollow tapered brush bristles
US4376746A · kind A · utility
11Cited by
30References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1981 |
| Grant date | Mar 15, 1983 |
| Priority date | — |
| Expiry date | Sep 17, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/805
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Improved paint brush bristles formed of synthetic materials are hollow and tapered with a central axial hollow. The tapered hollow bristles are characterized by their consistent wall thickness, i.e., ratio of cross-sectional hollow area to cross-sectional wall area remains consistent from one end of the bristle to the other; and by their consistency in neck-down location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.