Dry-laying a web of particulate or fibrous material
Patent 4144619 Issued on March 20, 1979. Estimated Expiration Date: 
March 15, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 15, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 562338 2152901 2218338 2940134 Apparatus for the deposition of a uniform layer of dry fibres on a foraminous forming surface Patent #: 4014635 InventorsAssigneeApplicationNo. 05/777856 filed on 03/15/1977US Classes:19/304, Fluid propelled to condenser19/305With fiber liberationExaminersPrimary: Newton, DorseyAttorney, Agent or FirmInternational ClassD01G 25/00 (20060101)Foreign Application Priority Data1976-04-02 GBAbstractApparatus for dry-laying cellulosic fibres on a foraminous travelling band comprises a distribution chamber one wall of which facing the band is provided by a vibratable screen. Within the chamber is a rotating brush roll positioned so that the brushes cause the screen to vibrate. Fibres are urged through the screen partly by the action of the brush roll. Provision may be made for recirculating air which has passed through the band back to the chamber. | |
