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US 5,850,889 AGranted
Single post safety anchor
OwnerJohn Rexroad, C. Warren Duncaninventors
Life of this patent
Estimating the term…
Abstract
A single post anchor for lifelines is provided with a generally elongate member having at one end a means configured to engage about a structural member and having a clamping assembly which acts on another surface of the structure to secure the anchor in place. A swivel is provided as part of the anchor to which a retractable lifeline device or the like is attached.
Claims17
A single post anchor for securing a safety line to a structure comprising:
- (a) an elongate member having a first end and an opposite second end extending along a central axis generally coincident with said first and second ends;
- (b) engagement means disposed generally at said second end of said elongate member for engaging a surface of a structure;
- (c) clamping means associated with said elongate member and cooperating with said engagement means for clamping the anchor to a structure, said clamping means being disposed on said elongate member for movement axially between said first and said second ends of said elongate member for acting against another surface of a structure so as to clamp the anchor to the structure;
- (d) a first bearing surface mounted on said elongate member and extending 360 degrees generally concentrically about said central axis, said first bearing surface being a nonthreaded cylindrical surface;
- (e) a member having an opening for receiving said elongate member therein, said member defining a second bearing surface at least part of which rotatably engages with said first bearing surface and rotates freely in 360 degrees thereabout with said clamping means clamping said anchor to the structure;
- and
- (f) means for connecting a safety line to said member,
- (g) whereby said clamping means movement axially along said elongate member from said first end and towards said second end causes clamping of said elongate member against another surface of a structure without restricting said member from rotation about said elongate member in 360 degrees.
5 more elements
A method of securing a safety line to a structural member which is disposed beneath a roof surface comprising:
- (a) providing an anchor member having a generally elongate portion and a portion which is configured to engage around a structural member, providing a first bearing surface mounted on said elongate portion and extending 360 degrees generally concentrically about the central axis of said elongate portion, providing said first bearing surface and mounting same on said anchor member and Providing said first bearing surface as a nonthreaded cylindrical surface, providing a clamping means associated with said anchor member for clamping the anchor to a structure, said clamping means being disposed on said elongate portion of said anchor member for movement axially between first and second ends thereof, providing a member having an opening for receiving said elongate portion of said anchor member therein, said member defining said second bearing surface adapted to engage with said first bearing surface and to rotate freely in 360 degrees thereabout with said clamping means clamping said anchor to the structure and;
- (b) causing an opening to be formed in said roof and causing said portion of said anchor member which is configured to engage around a structural member to be inserted into said roof opening and to be positioned relative to the structural member so as to act on at least one surface of the structural member;
- (c) providing said clamping means on said anchor member such that it causes said portion of said-anchor member which is configured to engage around a structural member to become clamped to said structural member by causing at least another surface cooperating with said structural member to be acted on and in turn act on the roof surface and hence hold the anchor member in place while simultaneously permitting rotation of said member about said anchor member and causing said clamping means to move axially along said elongate portion of said anchor member to clamp said anchor member against another surface of a structure without restricting said member from rotation about said elongate portion of said anchor member in 360 degrees;
- (d) providing a means associated with the generally elongate portion of said anchor member for attaching a safety line to said anchor member;
- and
- (e) connecting a safety line to said means for attaching a safety means to an anchor.
3 more elements
Dependencies are inferred from the claim text.