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:
Nov. 21, 1989
Filed:
Jul. 26, 1988
Everald V Wright, Pittsburgh, PA (US);
Thomas L Manley, Jr, Coraopolis, PA (US);
Davy McKee Corporation, Pittsburgh, PA (US);
Abstract
An immersed dam foundation and a dam structure are formed in a body of moving water by forming a plurality of spaced piers having temporary support posts thereon. A current deflector is secured to the upstream support posts and sheet piling walls are driven to form upstream and downstream walls between the piers forming a base therebetween. The base is covered with a tremie seal and the walls cut off so that a prefabricated dam structure can be floated to a location above the tremie seal and lowered onto anchor points on the adjacent piers and secured to the piers and tremie seal. An exposed face of a pier is protected from the currents by barriers that serve as a portion of the next upstream and downstream walls, with gravel covered by precast concrete pads. The access galleries of adjacent prefabricated dam structures are closely aligned and seals provided therebetween.