|
We claim the ornamental design for a pressure vessel locking ring, as shown and described.
|
FIG. 1 is a front view of a pressure vessel locking ring showing the new design;
FIG. 2 is a left side elevation view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a rear elevational view thereof with the dotted line indicating that the end of the ring forms no part of the design; and,
FIG. 7 is a perspective view of the locking ring of FIG. 1 shown in expanded condition to emphasize its helical shape.
Eisberg, Douglas W., Panlasigui, Andrew
Patent | Priority | Assignee | Title |
D496220, | Nov 06 2003 | GLASS GAZEBO, THE | Beverage glass identifying device |
Patent | Priority | Assignee | Title |
3937780, | Feb 02 1967 | EXOL, INC , A CORP OF DE | Method of molding a pressure vessel locking ring with split rigid reinforcing segments |
4781830, | Apr 19 1988 | Osmonics, Inc. | Cross flow filtration apparatus and closure assembly therefor |
5036996, | May 31 1990 | Safety seal for pressurized system | |
5720411, | Mar 20 1996 | Codeline Corporation | Pressure vessels and end closures therefor |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 22 2000 | Progressive Composite Technologies, Inc. | (assignment on the face of the patent) | / | |||
Apr 05 2002 | EISBERG, DOUGLAS W | PROGRESSIVE COMPOSITE TECHNOLOGIES, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012564 | /0790 | |
Apr 05 2002 | PANLASIGUI, ANDREW | PROGRESSIVE COMPOSITE TECHNOLOGIES, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012564 | /0790 | |
Aug 31 2007 | BEKAERT PROGRESIVE COMPOSITION CORPORATION | BEKAERT PROGRESSIVE COMPOSITES, LLC, FORMERLY KNOWN AS BEKAERT PROGRESSIVE COMPOSITION CORPORATION | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 020213 | /0986 | |
Mar 16 2011 | Bekaert Progressive Composites, LLC | PROTEC ARISAWA AMERICA, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 026006 | /0814 |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |