Title: Grating

Abstract: The present invention relates to an improved grating structure comprising carrying bars, and a plurality of ribs interlocked in said bars. Each of said ribs has holes strategically placed on their extremities such that a locking rod may be inserted through said holes so as to tie the ribs to the carrying bars. The grating structure may be further stabilized by the utilization of locking plates on the ends of the carrying bars.

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Inventors: Wiklund, Curt Helmer (Sundbyberg, SW)
Frodin, Gunnar Sten (Sundbyberg, SW)

Application Number: 635353
Filing Date: 1975-11-26
Publication_date: 1977-09-27
Assignee:
Primary Class(es): 454/331 15/238, 52/473
Other Classes:
US Patent Ref:

2845150	Jul, 1958	McBerty	52/753.
3060834	Oct, 1962	Cira	98/121.
3333525	Aug, 1967	Tischuk	98/121.
3730074	May, 1973	Helwig	98/121.

Other Refs:
Primary Examiner: Capossela, Ronald C.
Assistant Examiner:
Attorney: Birch, Stewart, Kolasch and Birch