Protective covering for a mechanical linkage
US4904514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Sep 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A covering for a mechanical linkage comprises a material which is substantially impermeable to both liquid and particle contaminants and conforms to the outer surface of the mechanical linkage. Because the covering conforms to the surface of the mechanical linkage, the covering does not have loose portions that billow and rub together as the mechanical linkage operates. This lessens the possibility of pieces of the covering and contaminating material detaching and falling from the mechanical linkage. The covering also comprises access openings whereby the mechanical linkage can be serviced without removing the entire covering. In a preferred embodiment, the covering comprises a plurality of sections, each section having fasteners for securing the sections about the mechanical linkage. The separate sections can be individually removed and replaced in a relatively short period of time. In a more preferred embodiment, the covers comprise a non-woven polymeric fabric which is a barrier to industrial coatings and finishes such as paint. The non-woven fabric comprises a central layer of melt-blown polymer fibers placed between and bonded to two layers of spunbonded polymeric fibers. The …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.