Pipes and tubular conduits – Distinct layers – With mechanical means to hold layers in contact
Patent
1992-11-13
1994-06-07
Simone, Timothy F.
Pipes and tubular conduits
Distinct layers
With mechanical means to hold layers in contact
138149, 432234, F16L 914
Patent
active
053180763
ABSTRACT:
A device for locking refractory insulation members on support elements in a heat treating furnace, boiler or other piping has a first strap end with a ramp and a second strap end with a raised bearing tab. The ramp engages the bearing tab with an interference-fit to capture the first strap end on the second strap end. The first embodiment of the invention includes a hook insertable in a window. The hook has a deflectable ramp with a bearing edge which engages a lock surface on the raised bearing tab to lock opposing strap ends to one another. The second embodiment of the invention includes an angled edge on the first strap end which engages the raised bearing tab on the second strap end. The first and second strap ends have opposing slots. The first strap end includes a notched back which, when the opposing slots are fully interengaged, receives the bearing tab to capture the first strap end on the second strap end. In both embodiments, the first strap end is positively locked on the second strap end to prevent the strap ends from working free from one another. No welding or bending is required to lock the strap ends to one another.
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Bloom Engineering Company, Inc.; Drawing No. SKB-8684-B (1 page); Dec. 12, 1990; entitled "2" Thick Ka-Weld Assembly for Therm-a-Rail Crossovers and Risers; Strap Orientation for Manufacturing.
Bloom Engineering Company, Inc.
Hook James F.
Simone Timothy F.
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