Crucible

- Leco Corporation
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Description

FIG. 1 is a perspective view of the crucible of my invention;

FIG. 2 is a top plan view of the crucible shown in FIG. 1;

FIG. 3 is a bottom plan view of the crucible shown in FIG. 1; and,

FIG. 4 is a side elevational view of the crucible, it being understood that it is symmetrical.

Claims

The ornamental design for a crucible, as shown and described.

Referenced Cited
U.S. Patent Documents
1381171 June 1921 Darrah
1381535 June 1921 Basso
1518818 December 1924 Rietz
2195436 April 1940 Weller
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4419754 December 6, 1983 Sitek et al.
5452881 September 26, 1995 Hayashi
6291802 September 18, 2001 Ford
7402280 July 22, 2008 Ford
D654520 February 21, 2012 Okada et al.
20080290568 November 27, 2008 Bewlay et al.
20100314400 December 16, 2010 Kanda
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Foreign Patent Documents
56-40434 April 1981 JP
Other references
  • 1 page showing five of Applicant's commercially available prior art crucibles.
Patent History
Patent number: D712446
Type: Grant
Filed: Jun 19, 2012
Date of Patent: Sep 2, 2014
Assignee: Leco Corporation (St. Joseph, MI)
Inventor: Joshua N. Wetzel (Benton Harbor, MI)
Primary Examiner: Patricia Palasik
Application Number: 29/425,028
Classifications
Current U.S. Class: Universally (15/144.2)