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:
Dec. 02, 1980
Filed:
Aug. 16, 1978
Applicant:
Inventor:
Harold M Bowman, Fairview Park, OH (US);
Assignee:
National Utility Products Company, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
52 19 ; 404 26 ;
Abstract
An adjustable manhole cover support structure including a peripheral frame adapted for placement in the opening of a manhole housing, a peripheral manhole adjusting ring portion disposed on the frame, and a lateral support ring portion disposed on the adjusting ring. The adjusting ring portion has a peripheral inner seat for receiving the manhole cover. The lateral support ring portion is formed as a unit with the adjusting ring portion and projects generally rigidly upwardly therefrom to restrain the adjusted and elevated manhole cover against lateral movement relative to the frame.