Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Hook head – e.g. – j-bolt – etc.
Patent
1993-11-01
1995-04-25
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Hook head, e.g., j-bolt, etc.
411405, 411919, F16B 2300, F16B 3506
Patent
active
054093392
ABSTRACT:
The invention consists of two gear teethed nuts meshed together in an arrangement that causes both the nuts to move at the same rate of speed and in the same direction up or down the threaded rod arms of a U-bolt clamp whenever one of the nuts is turned. The meshed nuts apply similar and simultaneous pressure upon the crosspiece of a U-bolt clamp which crosspiece moves relative to the threaded rod arms which transverse it through apertures in the crosspiece. A clampling force is achieved between the crosspiece and the curved portion of the U-bolt as the two members are forced together by movement of the meshing nuts turning upon the threaded rod arms and pressing against the crosspiece.
REFERENCES:
patent: 140404 (1873-07-01), Coe
patent: 838554 (1906-12-01), Lasance
patent: 2422841 (1947-06-01), McClain
patent: 3002414 (1961-10-01), Nelson
patent: 4079487 (1978-03-01), Coop, Sr.
patent: 4685848 (1987-08-01), Langer
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