Lawrence E Lobaugh from 3645 Boca Ciega Dr, Naples, FL 34112, age 94, Phone: 2397930212

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Cold Forged Steel Grating
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US Patent:

39480135, Apr 6, 1976
Filed:

May 7, 1975
Appl. No.:

5/575464
Inventors:

Lawrence E. Lobaugh - Niles OH
Thomas S. Gallo - McDonald OH
International Classification:

E04C 242
E04C 504
B23P 512
US Classification:

52669
Abstract:

A cold forged steel grating is formed of a plurality of spaced parallel bearing bars secured to one another by a plurality of spaced parallel cross rods engaged in openings in the bearing bars adjacent their uppermost surfaces with the metal of the bearing bars adjacent the cross rods cold forged into engagement therewith and the metal of the cross rods adjacent the bearing bars flatened by cold forging to forcefully engage the opposite sides of said bearing bars and forming a sturdy rigid grating structure.

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