Signature feeder operable with either flat or standing stacks
Patent 5026038 Issued on June 25, 1991. Estimated Expiration Date: 
May 17, 2010. 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.
May 17, 2010. 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 2163145 3051333 3334890 3643939 3870294 3918143 Sheet feeders Envelope supply pack retainer Apparatus for feeding boards Signature feeder having improved signature extraction Patent #: 4907791 InventorsAssigneeApplicationNo. 524730 filed on 05/17/1990US Classes:271/3.12, Sheets on edges271/5, Pneumatic separator271/12, Endless conveyor271/31.1, Stack on edge271/150, Supported by moving conveyor belt271/163, Holder convertible from feed to delivery271/165, For feed from bottom of pack271/213, With movable sheet-surface support271/272, Between superposed conveyor couple271/276Including pneumatic meansExaminersPrimary: Olszewski, Robert P.Assistant: Milef, Boris Attorney, Agent or FirmForeign Patent References
International ClassesB65H 005/22163 165 275 276 AbstractSignature loader comprising a telescopically related main floor-mounted frame and a smaller auxiliary frame, first and second horizontal rotatable shafts between the frames spaced apart by a predetermined distance and so positioned that infeed belts thereon converge to define between them a signature infeed throat, one of said shafts being a pivot about which the auxiliary frame may be pivoted so the throat may be selectively positioned in one of two alternate attitudes.Field of SearchPneumatic separatorContinuous endless conveyor Unidirectionally-moving suction member or surface Having additional movement Suction member acting on bottom of pack By means to change direction of sheet travel For on-edge or imbricated sheets Supported by moving conveyor belt For imbricated sheets With movable sheet-surface support Receding from delivery zone (e.g., retractor) Conveyor-receiver for imbricated sheets Means effecting preliminary operation on sheets in pack Stack on edge Between superposed conveyor couple Including gripper-couple With means to replenish pack or retract advancer platform Holder movable relative to feed position | |
