Apparatus for needling fiber webs
Abstract
Abstract 1,090,887. Needling machines. E. FEHRER and R. FEHRER, [trading as SPEZIALMASCHINENFABRIK DR. ERNST FEHRER], Nov. 12, 1965 [Jan. 27, 1965], No. 48143/65. Heading D1R. Needling apparatus comprises a plurality of needleboards 3 carried in a holder composed of individual section beams 4 which are adapted for vertical reciprocatory movement in phase with a step-wise advancement of a web to be needled, which web is carried on a perforated support 1. Each section beam 4 is suspended from a rod 5 which is connected to a section shaft 7 by a connecting-rod 6. A bearing frame 9 is associated with each section beam 4 and guides the rod 5 during its vertical movement. The section shafts (7) are connected by flexible couplings (10) and are carried in bearings (8) in the frames (9), which frames (9) are secured to transverse supporting beams (11), Fig. 2 (not shown). The apparatus may be applied to the needling of differing widths of webs by varying the number of section beams and associated bearing frames and section shafts. The individual section beams are disposed in alignment transversely to the direction of advance of the web.
Inventors
- 👤 Fehrer Ernst
- 👤 Kern Walter
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |