The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 1991
Filed:
Oct. 02, 1987
Applicant:
Inventor:
John V Beamer, Atlanta, GA (US);
Assignee:
Construction Casting Company, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ;
U.S. Cl.
CPC ...
405282 ; 249 10 ; 405118 ;
Abstract
A method and apparatus for constructing a grate or solid covered trench is provided, having a 'Z' type frame made positionally adjustable by an adjustment slot and fastening means combination, and a trench-form construction achieving stability by means of a number of box-shaped bracings positioned along the trench-form sidewalls. The positions of the bracings are staggered to provide both a supporting surface to the frame and stability to the lower regions of the sidewalls.