Chain – staple – and horseshoe making – Chains – Conduit
Reexamination Certificate
2007-07-31
2007-07-31
Jones, David B (Department: 3725)
Chain, staple, and horseshoe making
Chains
Conduit
C059S900000, C248S049000, C248S051000
Reexamination Certificate
active
11499433
ABSTRACT:
The object of the instant invention is to provide a cable (or the like) protection and guide device in which inadvertent disengagement during operation can be avoided. Engagement between an opening/closing arm and link plates is accomplished by a dual mechanism locking structure. Easy engagement during use allows for excellent durability. The dual locking structure exhibits adequate strength even in smaller scale versions. The cable protection and guide device contains a plurality of link bodies with each link body comprises one link plate and another (110, 110). The link bodies are flexibly connected to each other. Each link body includes a connecting arm (120), an opening/closing arm (130), a hinge connection mechanism (100A), a main locking mechanism (100B), and an auxiliary locking mechanism (100C). A main locking mechanism (100B) secures the opening/closing arm (130) and the link plates (110, 110). An auxiliary locking mechanism (100C) locks the opening/closing arm (130) and the link plates (110, 110).
REFERENCES:
patent: 5201885 (1993-04-01), Wehler et al.
patent: 5243814 (1993-09-01), Hart
patent: 5778656 (1998-07-01), Hart
patent: 6789383 (2004-09-01), Plush et al.
patent: 3356699 (2000-05-01), None
Jones David B
Tsubakimoto Chain Co.
Woodling Krost & Rust
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