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Title: Beam clamp

Abstract: A threaded U-bolt receives a conduit to be clamped to an I-beam. A moisture resistant, polymeric material covers the conduit support portion of the U-bolt with the bolt threads remaining exposed. A clamping member covered with a moisture, resistant polymeric coating includes a first end portion adapted to engage a flange of the I-beam and a second end portion adapted to engage the conduit. A pair of apertures extend through the clamping member. A pair of resilient polymeric annular flanges extend upwardly from the upper surface of the clamping member and around the apertures. The U-bolt threaded ends extend upwardly through the apertures. A pair of polymeric nuts engage the threaded ends above the annular flanges of the clamping member. A resilient sealing flange extends radially from the open end of each encapsulated nut. The nuts are threadedly advanced on the U-bolt threaded ends to position the sealing flanges in contact with the clamping member annular flanges to form a radial, moisture resistant seal around the connections of the nuts to the threaded ends to prevent corrosion of the threaded connections.


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Inventors: Madej, Edward A. (Verona, PA)

Application Number: 06/170794
Filing Date: 1980-07-21
Publication_date: 1983-08-09
Assignee: Robroy, Ind

Primary Class(es): 248/72 411/431, 411/542, D08/394
Other Classes: F16B2/06; F16B33/00; F16B37/14; F16L3/24; F16B2/02; F16B37/00; F16L3/24
US Patent Ref:
1262743April, 1918Bronson411/429
1319652October, 1919Korns248/72
1516911November, 1924Canfield et al.285/390Reenforcing sleeve for rotary drill pipe
2795144June, 1957Morse411/431Moisture-proofing device
3075038January, 1963Schinske174/87Connector assembly
3297816January, 1967Waddington174/87Connector for electrical conductors
3299766January, 1967Gould et al.411/371Sealing element for fastener devices
3448223June, 1969Thorsman174/87CLAMP FOR CONNECTING ELECTRIC WIRES
3724706April, 1973Slocum220/38EXPLOSION PROOF JUNCTION BOX
4180228December, 1979Snyder et al.248/74RPipe clamp

Other Refs: CA905344DE2516013
July, 1972411/431
December, 1975411/429
Other References: Electrical Construction and Maintenance-vol. 76, No. 1, Jan. 1977, p. 112.

Primary Examiner: Schultz, William H.
Assistant Examiner: Ramirez, Ramon O.
Attorney: Price Jr., Stanley J.
Adams, John M.
Claims: