Roof anchors

Details Roof anchors Roof anchors

2005-11-22

2005-11-22

King, Anita M. (Department: 3632)

Supports

Brackets

Specially mounted or attached

C182S003000, C182S045000, C052S698000

Reexamination Certificate

active

06966531

ABSTRACT:
There is an anchor for securing a working line (54) to a structure. The anchor includes a sole plate (2) with an attachment (19) for the working line (54). There is at least one friction plate (5) and a connector strap (4). In use of the anchor the sole plate (2) and friction plate (5) are located against respective opposite sides of a rafter (3) of the structure and are linked together by the strap (4) in a manner such that the working line load on the sole plate (2) generates a clamping force between the sole plate (2) and the friction plate (5). This force resists movement of the anchor by gripping only the outside of the rafter (3).

REFERENCES:
patent: 2693386 (1954-11-01), Renfroe
patent: 4606430 (1986-08-01), Roby et al.
patent: 4932185 (1990-06-01), Lebel
patent: 5271481 (1993-12-01), Rich
patent: 5346036 (1994-09-01), Arisman et al.
patent: 5370202 (1994-12-01), Nichols
patent: 5553685 (1996-09-01), Cook
patent: 5687535 (1997-11-01), Rohlf
patent: 5727646 (1998-03-01), Gray
patent: 5730407 (1998-03-01), Ostrobrod
patent: 6298629 (2001-10-01), Ador
patent: 2251020 (1992-06-01), None

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