Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Patent
1998-07-21
2000-11-21
Kent, Christopher T.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
182 3, 182 36, A47L 304, E04G 314
Patent
active
061485802
ABSTRACT:
In a first embodiment of the invention, a safety frame comprises at least four legs; a pair of spaced apart beams, each connected to two of the legs; and at least one cross-beam extending between and secured to the pair of spaced apart beams. At least one traveler is slidably disposed on the at least one cross-beam. A tethering device, such as a lanyard, may be secured to the traveler, and a safety jacket may be secured to the tethering device. A worker wearing a safety jacket secured to a tethering device that is secured to the traveler is both protected against falls and has a wide field of movement as the traveler moves along the at least one cross-beam. The safety frame is rendered movable by casters secured to the legs. Insert members render the legs extensible beyond the height of the casters to render the safety frame fixable in position. In a second embodiment of the invention, the safety frame of the first embodiment is modified by having each of the legs pivotably secured to a base member, both directly and indirectly via a bracing member, rather than having insert members and casters. The base members are affixable to a surface, such as a roof or the like, if desired. The cross-beams are secured to the legs, rather than to beams that are secured to the legs.
REFERENCES:
patent: 2871915 (1959-02-01), Hogan
patent: 3379439 (1968-04-01), Sorenson et al.
patent: 4607724 (1986-08-01), Hillberg
patent: 4699245 (1987-10-01), Benedet
patent: 5143170 (1992-09-01), Hunt et al.
patent: 5285868 (1994-02-01), Amacker
patent: 5522472 (1996-06-01), Shuman, Jr. et al.
patent: 5537933 (1996-07-01), Ablad
Kent Christopher T.
Thissell Jennifer I.
LandOfFree
Safety frame does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety frame, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety frame will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1246806