Fire escape – ladder – or scaffold – Traversing – track-mounted
Reexamination Certificate
2006-02-21
2006-02-21
Chin-Shue, Alvin (Department: 3634)
Fire escape, ladder, or scaffold
Traversing, track-mounted
C182S003000, C248S228100
Reexamination Certificate
active
07000730
ABSTRACT:
A beam anchor safety device for use by workers wearing a lanyard for attachment to the device for preventing falls from elevated locations. The safety device includes an elongate round bar and a pair of L-shaped members affixed to the bar adjacent opposite ends thereof for releasably and slideably connecting the device to a flanged beam. Preferably both of the L-shaped members are moveable along the bar. A lanyard attachment portion is carried by the bar between the L-shaped members and circular washers surround said bar on either side of the lanyard attachment means for rolling engagement with the beam for assisting the sliding of the device along the beam. The elongated bar has a plurality of spaced apart grooves formed in the outer surface thereof and the L-shaped members include means for creating an interference fit with a selected one of the grooves to thereby secure the L-shaped member at a desired position on said bar. In one embodiment, the L-shaped member includes an aperture therein that is adapted to be aligned with a selected one of the grooves and a pin passes through the aperture and lies within the groove to prevent movement of the L-shaped member. In a second embodiment, the L-shaped members include a rotatable element capable of being rotated by a knob between an operative position wherein a portion of the element lies within a groove to create the interference fit and an inoperative position wherein the L-shaped members can be moved along the bar. A spring normally biases the rotatable element into its operative locking position.
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Chin-Shue Alvin
Lehrer Norman E.
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