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:
Apr. 17, 1990
Filed:
Mar. 27, 1989
Applicant:
Inventor:
John D Nicholas, Lawrenceville, GA (US);
Assignee:
MM Systems Corporation, Tucker, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ; E01C / ; E04F / ;
U.S. Cl.
CPC ...
52396 ; 404 47 ; 404 64 ;
Abstract
An apparatus for sealing expansion joints between concrete slabs and the like comprises a compression seal member, which fits within the expansion joint and provides an airtight and watertight seal; and a surface cover plate, which provides a planar pedestrian treadway, supports vertical loads, prevents dirt and debris from entering and accumulating within the expansion joint, and provides an aesthetically pleasing appearance.