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. 20, 1983
Filed:
Feb. 27, 1981
Applicant:
Inventor:
Jean-Paul Aubert, Puteaux, FR;
Assignee:
Coflexip, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137340 ; 220219 ;
Abstract
A drain pipe arrangement for draining water from a floating roof of a storage reservoir includes a flexible drain pipe connected to the roof, and a flexible heating element within the drain pipe. The flexible heating element takes the form of two rigid metal tubes twisted on each other and having their upper ends connected together. A pump and heater provide for circulating heated fluid through the tubes to prevent drain water from freezing in the drain pipe.