|
The ornamental design for a dual coil fitting, as shown and described.
|
FIG. 1 is a perspective view of the fitting;
FIG. 2 is a typical front view of the fitting;
FIG. 3 is a typical side view of the fitting;
FIG. 4 is a bottom view of the fitting;
FIG. 5 is a top view of the fitting;
FIG. 6 is a perspective view of a second embodiment of the fitting;
FIG. 7 is a typical front view of the second embodiment of the fitting;
FIG. 8 is a typical side view of the second embodiment of the fitting;
FIG. 9 is a bottom view of the second embodiment of the fitting; and
FIG. 10 is a top view of the second embodiment of the fitting.
Patent | Priority | Assignee | Title |
11892201, | Mar 15 2013 | Installation apparatus/tool for tubular geothermal heat exchanger systems and methods | |
9188368, | Feb 04 2009 | DESANTIS, BROOKE ERIN | Geothermal flexible conduit loop single pass installation system for dense soils and rock |
9897347, | Mar 15 2013 | Screw-in geothermal heat exchanger systems and methods | |
D648835, | Apr 16 2010 | Charter Plastics, Inc. | Geothermal U-bend socket fusion fitting |
Patent | Priority | Assignee | Title |
4538673, | May 02 1984 | Geo-Systems, Inc. | Drilled well series and paralleled heat exchange systems |
5329992, | Feb 16 1993 | Prefabricated ground coil assembly | |
5533356, | Nov 09 1994 | Phillips Petroleum Company | In-ground conduit system for geothermal applications |
5639184, | Nov 09 1994 | Phillips Petroleum Company | In-ground conduit system for geothermal applications |
5642964, | Nov 09 1994 | Phillips Petroleum Company | In-ground conduit system for geothermal applications |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 28 2003 | HIBBS, JOHN C | Centennial Plastics, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014070 | /0175 | |
Mar 14 2003 | Centennial Platstics, LLC | (assignment on the face of the patent) | / |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |