Chain – staple – and horseshoe making – Chains – Conduit
Reexamination Certificate
2007-12-25
2007-12-25
Jones, David B (Department: 3725)
Chain, staple, and horseshoe making
Chains
Conduit
C248S049000
Reexamination Certificate
active
11437232
ABSTRACT:
Shoes having wear indicators are mounted on inner circumferential sides of side link plates of link frame bodies. The link frame bodies are interconnected longitudinally to form a cable protection and guide device. During operation, the device folds back upon itself such that the shoes of some of the link frame bodies slidingly engage the shoes of other link frame bodies. The indicator may be a groove, may employ a two color resin, may be a metal plate and may be positioned and sized to provide caution and limit indications as desired.
REFERENCES:
patent: 5020313 (1991-06-01), Moritz et al.
patent: 5860274 (1999-01-01), Saleh et al.
patent: 6156974 (2000-12-01), Blase
patent: 6173560 (2001-01-01), Weber
patent: 6425238 (2002-07-01), Blase
patent: 6615573 (2003-09-01), Blase
patent: 03-096738 (1991-04-01), None
Komiya Shoichiro
Saiki Kenichi
Jones David B
Tsubakimoto Chain Co.
Woodling Krost and Rust
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