Papermaking fabric seam with additional threads in the seam area
AssigneeAsten Johnson, Inc.
InventorSamuel H. Herring
Life of this patent
Estimating the term…
Abstract
An open-ended papermaker's fabric of a type woven from a longitudinal thread system and a transverse thread system and including a plurality of seam loops at each end of the fabric. A seam zone exists at each end of the fabric between the respective seam loops and the last thread of the transverse thread system. At least one additional transverse thread is interwoven in at least one seam zone, with the transverse thread placed in a repeated pattern of over at least three adjacent paper side longitudinal threads, between at least a first pair of paper side and machine side threads, under at least one machine side longitudinal thread, and between at least a second pair of machine and paper side threads.
Claims13
An open ended papermaker's fabric of a type woven from a longitudinal thread system and a transverse thread system and having a paper side and a machine side, a plurality of seam loops at each end of the fabric formed by the threads of the longitudinal thread system whereby a seam zone is formed at each end of said fabric between the respective seam loops and a respective end thread of said transverse thread system, the fabric characterized by:
- at least one additional transverse thread interwoven in at least one seam zone with the longitudinal thread system in a repeated pattern of over at least three adjacent paper side longitudinal threads, between at least a first pair of paper side and machine side threads, under at least one machine side longitudinal thread, and between at least a second pair of machine and paper side threads.
An open ended papermaker's fabric of a type woven from a longitudinal thread system and a transverse thread system and having a paper side and a machine side, a plurality of seam loops at each end of the fabric formed by the threads of the longitudinal thread system whereby a seam zone is formed at each end of said fabric between the respective seam loops and a respective end thread of said transverse thread system, the fabric characterized by:
- two additional transverse threads interwoven in at least one seam zone with the longitudinal thread system, each of the two additional threads woven in a repeated pattern of over at least three adjacent paper side longitudinal threads to define at least a first paper side float, between at least a first pair of paper side and machine side threads, under at least one machine side longitudinal thread, and between at least a second pair of machine and paper side threads.
A method of producing a papermaker's fabric comprising the steps of:
- interweaving a longitudinal thread system with a transverse thread system to define a base fabric having first and second ends and a paper side and a machine side;
- forming a plurality of seam loops at each end of the fabric from the threads of the longitudinal thread system and defining a seam zone at each end of said fabric between the respective seam loops and a respective end thread of said transverse thread system;
- and
- interweaving at least one additional transverse thread in at least one seam zone with the longitudinal thread system in a repeated pattern of over at least three adjacent paper side longitudinal threads, between at least a first pair of paper side and machine side threads, under at least one machine side longitudinal thread, and between at least a second pair of machine and paper side threads.
Dependencies are inferred from the claim text.