Expanded metal strip for reinforcing a resilient product

Stock material or miscellaneous articles – All metal or with adjacent metals – Width or thickness variation or marginal cuts repeating...

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428595, 428596, 428600, 428122, 428136, 428138, 428140, 29 61, 494901, E06B 722

Patent

active

057833125

ABSTRACT:
A continuous strip of sheet metal is progressively lanced and then expanded by coining rolls to form an expanded ladder-like reinforcing strip. The strip has laterally extending parallel spaced bars integrally connected on one side by a coined solid spline and on the other side by a coined spline lanced to form slits at longitudinally spaced intervals. The strip is roll-formed into a U-shaped channel which is fed into an extruder head for reinforcing an extruded resilient weatherstrip having a tubular portion projecting from the embedded continuous solid spline and a retaining wall portion reinforced with the embedded lanced spline.

REFERENCES:
patent: 4304816 (1981-12-01), Bright et al.
patent: 5199142 (1993-04-01), Davis
patent: 5302466 (1994-04-01), Davis

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