Fire escape – ladder – or scaffold – Torso harness
Reexamination Certificate
1999-08-04
2001-05-08
Chin-Shue, Alvin (Department: 3634)
Fire escape, ladder, or scaffold
Torso harness
C182S045000, C182S036000
Reexamination Certificate
active
06227329
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to methods and apparatus for providing an anchorage between two members, such as a safety line and a support structure.
BACKGROUND OF THE INVENTION
Various occupations place people in precarious positions at relatively dangerous heights, thereby creating a need for fall-arresting safety apparatus. Such apparatus typically require a reliable safety line and reliable connections to both the support structure and persons working in proximity to the support structure. An object of the present invention is to provide an improved anchorage suitable for supporting a safety line in a variety of installation environments.
One known type of fall arrest system connects a horizontal line to a support structure to support individual worker safety lines without substantially interfering with the worker's movements. Examples of horizontal safety line systems are disclosed in U.S. Pat. No. 5,343,975 to Riches et al., U.S. Pat. No. 5,279,385 to Riches et al., U.S. Pat. No. 5,224,427 to Riches et al., and U.S. Pat. No. 4,790,410 to Sharp et al. Another object of the present invention is to provide an improved anchorage suitable for use at the ends of safety lines used in this type of system.
SUMMARY OF THE INVENTION
The present invention provides methods and apparatus for establishing a connection between two members. On a preferred embodiment of the present invention, a base plate is adapted to be mounted on a support structure, and a transverse plate extends outward from the base plate and supports a ring adapted to be connected to an end of a safety line. The ring is retained within a slot in the transverse plate, and a notch in the slot cooperates with tension in the safety line to discourage movement of the ring along the slot. Additional features and/or advantages of the present invention may become more apparent from the detailed description which follows.
REFERENCES:
patent: D. 311326 (1990-10-01), Nelson
patent: 3937436 (1976-02-01), Stewart
patent: 4699245 (1987-10-01), Benedict
patent: 5287944 (1994-02-01), Woodyard
patent: 5320193 (1994-06-01), Bongiolanns
patent: 5850889 (1998-12-01), Rexroad
Chin-Shue Alvin
Mau & Krull, P.A.
Protecta International S.A.
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