Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1984-06-21
1986-03-11
Yost, Frank T.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29 33T, 137318, 408 1R, F16K 4104
Patent
active
045744432
ABSTRACT:
A rotary threaded penetrator bolt means having a tubular hollow pin therein is employed to contact against a hardened cylindrical punch means to linearly advance the punch without rotation thereof through the wall thickness of the fluid containing member desired to be pierced. In such arrangement, if the wall thickness of the fluid containing member is sufficiently great, it may be desirable to pre-drill a punch receiving cylindrical recess therein prior to operation of the penetrator bolt means. In addition, prior to insertion of the penetrator bolt means in its receiver means affixed to the fluid containing member, the invention utilizes a seal packing material wrapped about a protruding end portion of the pin means so that upon threaded insertion of the penetrator bolt into the receiver means, a gradual compression of the seal material will occur to create a fluid tight seal about the exterior of the pin means as well as between the receiver means and the outer wall of the fluid containing member prior to actual penetration of the punch through the member wall.
REFERENCES:
patent: 3198206 (1965-08-01), O'Brien
patent: 3287997 (1966-11-01), McMurray et al.
patent: 3480036 (1969-11-01), Ehrens et al.
patent: 3554217 (1971-01-01), Ehrens et al.
patent: 3896842 (1975-07-01), Cole
patent: 4127141 (1978-11-01), Ledonne et al.
Hudak, Jr. John
Persak Steven R.
Dvorak Joseph J.
Exxon Research and Engineering Co.
Yost Frank T.
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