Ladder stabilizers

Fire escape – ladder – or scaffold – Ladder with pivoted prop – Lateral prop

Reexamination Certificate

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Reexamination Certificate

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10345068

ABSTRACT:
A step ladder stabilizer for mounting behind the front step portion and having two adjusting legs which adjust as a slide lock moves vertically within a slot attached to the rear of the ladder steps. When not in use, the ladder stabilizer closes flush against the back of the ladder steps. An alternate embodiment includes a ladder stabilizer for an extension ladder comprising an extending leg and a stabilizer arm with the top of the extending leg attaching to a slide lock that slides along a channel mounted on the side of the ladder. Bolts passing through expansion inserts hold the channel onto each side of the ladder.

REFERENCES:
patent: 554695 (1896-02-01), Hood
patent: 979821 (1910-12-01), Brasington
patent: 1134491 (1915-04-01), Savage
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patent: 4244446 (1981-01-01), Mair
patent: 4519477 (1985-05-01), Ralston
patent: 4520725 (1985-06-01), Haug
patent: 4641729 (1987-02-01), Beck et al.
patent: 4798263 (1989-01-01), Harvey
patent: 4964488 (1990-10-01), Stewart
patent: 5341899 (1994-08-01), Casamento
patent: 5868222 (1999-02-01), Charbonneau
patent: 2146688 (1985-04-01), None
patent: 2146688 (1985-04-01), None

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