US 4,397,437 AGranted

Beam clamp

AssigneeRobroy Industries, Inc.

InventorEdward A. Madej

Life of this patent

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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.

Claims16

Dependent claims

Apparatus for supporting a conduit from a structural member comprising,

a conduit support having a body portion for receiving a conduit and a connecting portion extending from said body portion,
a moisture resistant, polymeric coating on said body portion,
a clamping member positioned on said conduit support connecting portion,
said clamping member having a body portion with a first end adapted to engage a structural member and an opposite second end adapted to engage a conduit,
at least one aperture extending through said clamping member,
a moisture resistant, polymeric coating on said clamping member,
said clamping member coating forming a resilient annular flange surrounding said aperture,
said conduit support connecting portion extending through said aperture and said resilient annular flange,
a fastening member releasably engageable with said connecting portion to urge said clamping member first end portion into engagement with a structural member to draw a conduit into abutting relation with the structural member to secure the conduit thereto,
a moisture resistant, polymeric coating encapsulating said fastening member and forming a resilient, annular sealing flange,
said resilient, annular sealing flange surrounding an opening into said fastening member, said conduit support connecting portion extending into said opening into engagement with said fastening member,
a resilient seal boss extending radially inwardly from said resilient, annular sealing flange toward said opening,
said resilient, annular sealing flange being urged into surrounding sealing relation with said clamping member annular flange so that said resilient seal boss extends into said aperture as said fastening member is tightened on said clamping member connecting portion and said resilient seal boss engages said clamping member annular flange to provide a moisture resistant seal around said connecting portion at the point where said connecting portion extends through said aperture of said clamping member.

10 more elements

Apparatus for supporting a conduit from a structural member comprising,

a conduit support having a body portion for receiving a conduit and a connecting portion extending from said body portion,
a moisture resistant, polymeric coating on said body portion,
a clamping member positioned on said conduit support connecting portion,
said clamping member having a body portion with a first end adapted to engage a structural member and an opposite second end adapted to engage a conduit,
at least one aperture extending through said clamping member,
a moisture resistant, polymeric coating on said clamping member,
said clamping member coating forming a resilient annular flange surrounding said aperture,
said conduit support connecting portion extending through said aperture and said resilient annular flange,
a fastening member releasably engageable with said connecting portion to urge said clamping member first end portion into engagement with a structural member to draw a conduit into abutting relation with the structural member to secure the conduit thereto,
a moisture resistant, polymeric coating encapsulating said fastening member and forming a resilient, annular sealing flange,
said resilient, annular sealing flange contacting said clamping member annular flange to provide a moisture resistant seal around said connecting portion at the point where said connecting portion extends through said aperture of said clamping member,
said fastening member polymeric coating forming a cap around said fastening member,
said cap having a closed end portion at one end and an opposite end portion with an opening therethrough for passage of said connecting portion into engagement with said fastening member,
said resilient, annular sealing flange surrounding said opening,
a sealing face flaring radially outwardly from said opening to said resilient annular sealing flange,
said sealing face having a conical configuration decreasing in diameter from said resilient, annular sealing flange radially inwardly to said opening, and
said sealing face being operable with said resilient, annular sealing flange to contact said clamping member annular flange in sealing relation to prevent exposure of said connecting portion and said fastening member to moisture.

14 more elements

A corrosion resistant fastener comprising,

a fastening member having a body portion with a bore therethrough,
a moisture resistant polymeric coating encapsulating said fastening member,
said polymeric coating forming a body portion of a preselected thickness around said fastening member,
said coating body portion having an open end portion aligned with said fastening member bore and a closed end portion,
said closed end portion being longitudinally spaced from said fastening member,
an elongated passageway aligned with said fastening member bore and extending from said open end portion through said fastening member bore to said closed end portion,
a resilient annular sealing flange extending outwardly from said coating body portion open end portion and operable to form a radial seal around said fastening member,
said coating body portion forming a cap around said fastening member,
said open end portion being positioned at one end of said cap and said closed end portion being positioned at the opposite end of said cap,
said fastening member being positioned closely adjacent to said open end portion, and
said cap including a sealing face flaring radially outwardly from said open end portion to said resilient annular sealing flange on said coating body portion.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/170,794Filed 21 Jul 1980
Granted: 9 Aug 1983
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16L 3/24
Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets: with special member for attachment to…
F16B 2/065
External, i.e. with contracting action: using screw-thread elements
F16B 33/004
Features common to bolt and nut: sealing; Insulation
F16B 37/14
Nuts or like thread-engaging members: cap nuts; Nut caps or bolt caps

Family

No related US applications are recorded in the indexed filing history.

Timeline

Citations

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