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:
Jan. 10, 1989
Filed:
Feb. 02, 1987
Robert S Herrick, Stuart, FL (US);
Gary E Webb, Port St. Lucie, FL (US);
Other;
Abstract
A method and device which provide a liquid-tight seal between a length of pipe, a housing, or other hollow structure and cured concrete in which the structure is embedded. A foamed polymeric sealing element is bonded about a portion of the exterior surface of the structure, and gunnite or concrete is cast about the structure and the sealing element. The interface of the concrete and the foamed polymeric sealing element become substantially permanently sealingly engaged. The method and device are particularly useful in the construction of swimming pools or similar fluid-containing vessels in which pipes or housings penetrate cast walls meant to confine water or other fluids. The method and device may also be used to form seals about structures penetrating cast foundations, dams, bulkheads, retaining walls, cisterns and basement walls.