Refractory block

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Description

FIG. 1 is a front, perspective view of a refractory block showing our new design;

FIG. 2 is a back, perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof, the left side being a mirror image thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a bottom view thereof, the separation and bracket shown in FIGS. 1, 2, 4, 5 and 7 indicating that the depth of the refractory block from the front face may vary.

Claims

The ornamental design for the refractory block, as shown as described.

Referenced Cited
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Patent History
Patent number: D591778
Type: Grant
Filed: Aug 30, 2007
Date of Patent: May 5, 2009
Assignee: Harbison-Walker Refractories Company (Moon Township, PA)
Inventors: John J. Stephansky (Fair Oaks, PA), John E. Berry (Wexford, PA)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Attorney: Kusner & Jaffe
Application Number: 29/284,065
Classifications
Current U.S. Class: Deforming Or Crushing (includes Element) (5) (D15/123)