Static structures (e.g. – buildings) – Assembled in situ-type anchor or tie
Patent
1992-09-10
1995-07-04
Safavi, Michael
Static structures (e.g., buildings)
Assembled in situ-type anchor or tie
5250605, 411371, 411451, 411452, 411500, 411901, F16B 1900, F16B 1302
Patent
active
054289351
ABSTRACT:
Compositions and designs useful for fabricating safety cushion and mat assemblies which have effective protection against injuries to persons falling from a height of up to twelve feet are disclosed. The rubber anchor composition has a shore hardness of about 73 and comprises a natural rubber, a processing aid agent, a plasticizer, a filler, an antioxidant, an antiozonant, an activator, an accelerator, a vulcanizer, an inhibitor and optionally a colorant or a whitener. Moreover, the rubber anchor comprises a rounded head portion with a diameter of about 1.5-2.2 inches and a thickness of about 0.15-0.5 inches; a bolt portion of about 3-6 inches in length, and a diameter of about 0.4-0.8 inches, preferably the bolt portion further has indentations. In addition, preferably a metal washer is embedded in the bottom of the rounded head portion to provide further anchoring support to prevent the impact attenuation safety cushion and system from being pulled up from the ground.
Methods of fabricating the safety cushion, mat assemblies and securing anchors described above improves the fabricating process so that larger pieces of safety cushion can be molded and that the composition material does not stick to the mold thereby increases production efficiency.
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