Apparatus for needling a fibrous web
OwnerErnst Fehrerinventor
Life of this patent
Estimating the term…
Abstract
An apparatus for needling a fibrous web passing through the apparatus in one direction, which comprises a needle board driven back and forth in a needling direction, needles carried by the needle board and extending in the needling direction, and a stationary support opposite the needle board in the needling direction. The stationary support comprises in the range of the needles two support sections inclined in opposite directions in the one direction and a transitional support section between the two support sections and smoothly merging into the two oppositely inclined support sections.
Claims10
An apparatus for needling a fibrous web passing through the apparatus in one direction, which comprises
- (a) a needle board driven back and forth in a needling direction,
- (b) needles carried by the needle board, extending in the needling direction and defining a needling path when the needle board is driven back and forth, and
- (c) a stationary support opposite the needle board in the needling direction, the stationary support comprising in the needling path
- (1) two support sections inclined in opposite directions in the one direction and
- (2) a transitional support section between the two support sections, the transitional support section smoothly merging with the two oppositely inclined support sections.
Dependencies are inferred from the claim text.