Lock and tool therefor

Closure fasteners – Seal bolts

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Details

292318, 411267, 411433, E05B 3902

Patent

active

057329893

ABSTRACT:
A lock body through bore receives a steel bolt with an array of annular grooves. A locking mechanism secured in the bore has an annular array of locking jaws normally biased engaged with an inserted bolt groove. A jaw spreader has a conical surface for spreading the jaws radially outwardly to disengage the bolt. A locking member normally is radially outwardly of the jaws to preclude such spreading. A spring with a high spring constant, e.g., 300 pound load, axially biases the locking member in the jaw locking position. The spreader and locking member define a locking jaw conical path for radially outwardly releasing the jaws during bolt insertion and for locking the jaws in the opposite bolt withdrawal direction. A manually operated tool with a rotatable cylinder which engages the spreader and including a pair of lock gripping tines provides a high force to the spreader to axial displace it against the locking member spring to release the bolt locking jaws while simultaneously radially outwardly releasing the jaws from the bolt.

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patent: 5580200 (1996-12-01), Fullerton
E.J. Brooks Company, Brooks Trans-Lok Seals, 1 sheet, Jan. 1989.
E.J. Brooks Company, Seals & Locking Devices, catalog 6 sheets, Jan./Feb. 1995.

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