Patent
   D468392
Priority
Nov 22 2000
Filed
Nov 22 2000
Issued
Jan 07 2003
Expiry
Jan 07 2017
Assg.orig
Entity
unknown
1
4
n/a
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
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 22 2000Progressive Composite Technologies, Inc.(assignment on the face of the patent)
Apr 05 2002EISBERG, DOUGLAS W PROGRESSIVE COMPOSITE TECHNOLOGIES, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0125640790 pdf
Apr 05 2002PANLASIGUI, ANDREWPROGRESSIVE COMPOSITE TECHNOLOGIES, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0125640790 pdf
Aug 31 2007BEKAERT PROGRESIVE COMPOSITION CORPORATIONBEKAERT PROGRESSIVE COMPOSITES, LLC, FORMERLY KNOWN AS BEKAERT PROGRESSIVE COMPOSITION CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0202130986 pdf
Mar 16 2011Bekaert Progressive Composites, LLCPROTEC ARISAWA AMERICA, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0260060814 pdf
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