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:
May. 16, 2006
Filed:
Dec. 16, 2002
John E. Owens, Cypress, TX (US);
Roger J. Orner, Columbia, SC (US);
Terry A. Gallagher, Wheaton, IL (US);
John E. Owens, Cypress, TX (US);
Roger J. Orner, Columbia, SC (US);
Terry A. Gallagher, Wheaton, IL (US);
Chicago Bridge & Iron Company, Plainfield, IL (US);
Abstract
A low-profile secondary seal for floating-roof storage tanks has a tip seal that includes a series of segmental adapter plates connected to the shoe plates. A tip seal element is mounted on the adapter plates. A fabric extends between the tip seal and the floating roof. A pusher is hinged to the floating roof, and includes a pusher bar with two ends that are disposed in a sliding arrangement against the adapter plates. A spring is connected to the pusher at an inclined angle, providing a mechanical advantage as the spring biases the pusher and pusher bar outwardly against the plates, pressing the tip seal against the tank shell.