Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2004-05-14
2008-12-30
Omgba, Essama (Department: 3726)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S267000, C029S282000, C029S525110, C254S021000, C254S018000, C081S044000
Reexamination Certificate
active
07469456
ABSTRACT:
A tool and method for installing an expansion bolt in a remote location where the expansion bolt is not readily accessible. The tool is comprised of a housing having a rod with a puller element on one end slidably mounted in the housing. A barrel is attached to and extends from the front of the housing. The headless screw of an expansion bolt is loosely threaded into the puller element and the barrel of the tool and the bolt are lowered until the expandable anchor on the screw is in or below a hole in a remote support structure. A ratchet in the housing moves the puller within the housing to pull the screw upward while the lower end of the barrel abuts and holds the flange on the anchor portion against the support structure to set the expandable anchor.
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BP Corporation North America Inc.
Nemo Thomas E.
Omgba Essama
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