FIG. 1 is a perspective view of a circular sleeve coupling, showing our new
design, as seen obliquely from the front;
FIG. 2 is a perspective view of the sleeve coupling, as seen obliquely from
the back;
FIG. 3 is a side elevation of the sleeve coupling, the opposite side being
a mirror image thereof; and,
FIG. 4 is a front view of the sleeve coupling.
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Mar 24 2005 |
Langdon Incorporated |
Sealing gasket for ventilation duct system |
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Sep 18 1997 |
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Toy building tube |
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May 20 1999 |
Eastern Sheet Metal, Inc. |
Sleeve coupling |
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May 20 1999 |
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Sleeve coupling |
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May 20 1999 |
Eastern Sheet Metal, Inc. |
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May 20 1999 |
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Sleeve coupling |
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May 20 1999 |
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Mar 20 2001 |
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Mar 20 2001 |
EASTERN SHEET METAL INC |
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Mar 20 2001 |
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Offset duct with an indented end |
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Mar 20 2001 |
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Duct with a crimped end |
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Mar 20 2001 |
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Duct tap with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Reducer with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
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Mar 20 2001 |
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Duct with an indented end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Bell mouth with an indented end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Reducer with an indented end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Reducer with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with an indented end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct tap with an indented end |
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Mar 24 2005 |
Langdon Incorporated |
Portion of ductwork |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct tap with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with an indented end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with a crimped end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with an indented end |
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Mar 20 2001 |
Air Distribution Technologies IP, LLC |
Duct with a crimped end |
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Mar 24 2005 |
Langdon Incorporated |
Portion of ductwork |
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Mar 24 2005 |
Langdon Incorporated |
Gasket |