Joints and connections – Distinct end coupler – Interrupted periphery – e.g. – split or segmental – etc.
Patent
1997-09-12
1999-11-09
Hughes, S. Thomas
Joints and connections
Distinct end coupler
Interrupted periphery, e.g., split or segmental, etc.
411419, 403309, F16D 100
Patent
active
059801492
ABSTRACT:
A sampling arm coupler device comprises a coupler comprising a rectangular tructure or bar, having a cylindrically hollow bore therethrough. The bar has internal threading along the hollowv bore, and internally threaded holes through opposite sides of the bar perpendicular to the hollow bore. The holes are aligned along the bar so as to permit passage of a bolt therethrough. Additionally, the sampling arm coupler device has a lever arm structure having one insert end comprising a half cylinder portion with external threading and a flat longitudinal sure opposite the external threading. The external threading of the half cylinder is capable of mating with the internal threading of the bore whereby the half cylinder portion and the flat longitudinal surface portion inserts and screws into one end of the bar, wherein the flat longitudinal surface portion is positioned as to allow at least one bolt to be inserted through the bar holes perpendicular to the bore along the flat longitudinal surface portion. This rotationally locks the lever arm structure in the bar. The sampling arm coupler disclosed may be installed by hand.
REFERENCES:
patent: 1967145 (1934-07-01), Fisher
patent: 2821419 (1958-01-01), Walton
patent: 3600010 (1971-08-01), Downs
patent: 4091523 (1978-05-01), Riecke
patent: 4103378 (1978-08-01), Granados
Colclough Stephen J.
Lipp Louie J.
Biffoni Ulysses John
Blount Steven A
Hughes S. Thomas
Stolarun Edward L.
The United States of America as represented by the Secretary of
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