Grid structure

- Lockheed Corporation
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Description

FIG. 1 is a top right side perspective view of a grid structure according to the present invention, the opposite side being a mirror image of the right side; and,

FIG. 2 is a bottom left side perspective view of the grid structure, the opposite side being a mirror image of the left side.

The characteristic feature of the design of a grid structure according to the present invention resides in the fact that the interpenetrating grid sections, which form the interstices defining the grid structure, have sinuous surfaces.

Referenced Cited
U.S. Patent Documents
D186216 September 1959 Haver
D199525 November 1964 Keller
D254034 January 22, 1980 Amber
2048474 July 1936 Schuhmacher
2256000 September 1941 McNeil
3104834 September 1963 Lipscomb
3481427 December 1969 Dobbs et al.
4035975 July 19, 1977 Gergely
4221038 September 9, 1980 Singer et al.
4245926 January 20, 1981 Asszongi et al.
4661245 April 28, 1987 Rutherford et al.
5039567 August 13, 1991 Landi et al.
Patent History
Patent number: D375564
Type: Grant
Filed: Sep 13, 1991
Date of Patent: Nov 12, 1996
Assignee: Lockheed Corporation (Calabasas, CA)
Inventor: John M. Perez (Sunnyvale, CA)
Primary Examiner: Doris Clark
Application Number: 7/758,948
Classifications
Current U.S. Class: Perforated Or Openwork (24) (D25/152)