Inner retention ring

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Description

FIG. 1 is a front, top perspective view of an inner retention ring showing our new design;

FIG. 2 is a front, bottom perspective view of the inner retention ring of FIG. 1;

FIG. 3 is a front elevated view of the inner retention ring of FIG. 1;

FIG. 4 is a rear elevated view of the inner retention ring of FIG. 1;

FIG. 5 is a left -side elevated view of the inner retention ring of FIG. 1;

FIG. 6 is a right-side elevatedview of the inner retention ring of FIG. 1;

FIG. 7 is a top plan view of the inner retention ring of FIG. 1;

FIG. 8 is a bottom plan view of the inner retention ring of FIG. 1; and,

FIG. 9 is a cross-section view of the inner retention ring of FIG. 1, taken along line 9-9 of FIG. 7.

The broken lines consisting of dashes show an environment that forms no part of the claimed design.

Claims

We claim the ornamental design of an inner retention ring, as shown and described.

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Patent History
Patent number: D935574
Type: Grant
Filed: May 3, 2021
Date of Patent: Nov 9, 2021
Assignee: DynaEnergetics Europe GmbH (Troisdorf)
Inventors: Christian Eitschberger (Munich), Thilo Scharf (Letterkenny), Gernot Uwe Burmeister (Austin, TX)
Primary Examiner: Amy C Wierenga
Application Number: 29/781,925
Classifications
Current U.S. Class: Coupling Or Joint (D23/262)