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. 22, 1994
Filed:
Jun. 08, 1992
Raymond Violi, Marlens, FR;
Societe Cooperative de Production Bourgeois, Faverges, FR;
Abstract
A boiler for the production of steam and/or hot water has a principal enclosure limited by a watertight wall for containing water, a bottom water extraction outlet,a water supply inlet, an upper steam outlet and a level detector controlling the water level in the enclosure. Electric immersion heating elements are provided in the enclosure for heating the water to generate steam. At least one section of the enclosure wall adjacent the water level on which scale deposits are likely to form is deformable by flexion and is stressed by time-varying deformations of the wall produced by variations of water and/or steam pressure in the enclosure which causes the film of scale deposited on the inner surface of the at least one deformable section to break up and become detached so that they fall to the bottom of the enclosure for easy elimination by drainage of the water from the enclosure through the bottom water extraction outlet.