Fall arrest system with flow-through intermediate support
OwnerMarc J. Desjardins, David A. Duvalinventors
Life of this patent
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Abstract
A fall arrest system with flow-through intermediate supports which allow the travel of one or more load-connecting devices along a length of horizontal lifeline cable supported by intermediate supports. The load-connecting device having an upper cable contacting portion of greater outside diameter than the narrow opening at the bottom of the intermediate supports. In the event of a fall, the load-connecting device pulls the cable downward while the cable remains within the inner portion of said intermediate supports. Outward tension of the cable in maintained by a tension control device while the chock to the load is absorbed by said tension control device located between the cable and one of the cable-end anchors.
Claims11
A fall arrest system with flow-through intermediate supports comprising:
- a. a floor-level end anchor comprising:
- a rectangular mounting plate having a plurality of perforations for fastening to structural members of a work area, a center rib portion of equal length to that of the mounting plate fixedly and upwardly attached to center length of said mounting plate, one perforation near each end of center rib portion so as to allow fastening of cable connectors to said floor-level end anchor,
- b. a floor-level intermediate support comprising:
- a rectangular mounting plate having a plurality of perforations for fastening to structural members of a work area, a generally square tubing portion upwardly and fixedly attached to center length of said mounting plate having a lower mounting-plate connecting portion, two upwardly protruding side members and inwardly protruding upper members adapted with a central opening having larger openings at each extremity narrowing inwardly to the narrowest portion of said opening,
- c. an overhead intermediate support having an upper mounting portion with two perforations for fastening to structural members of a work area, two downwardly protruding side members, and inwardly protruding bottom members adapted with a central opening having larger openings at each extremity narrowing inwardly to the narrowest portion of said opening,
- d. a load-connecting device comprising:
- an upper horizontal cylindrical tube having a length of approximately four time its diameter, a lower load-attaching portion—fixedly and downwardly attached to said upper cylindrical tube—having a generally thin vertically planar member with a perforation at the lower central region of said load-attaching portion and angular lower bottom corners,
- e. a tension control device comprising two flat bars portions having a single perforation near each end, one upper flat bar having a central point extending downwardly and outwardly then only outwardly to form planar ends, and one lower portion mirroring the upper portion so that when both portions meet, form a diamond shaped opening between said upper and lower portions,
Dependencies are inferred from the claim text.