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:
Oct. 30, 2001
Filed:
Nov. 29, 2000
Applicant:
Inventor:
Fritz Pieper, Delmenhorst, DE;
Assignee:
Franz Kaldewei GmbH & Co. KG, Ahlen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47K 3/02 ; B29C 6/348 ;
U.S. Cl.
CPC ...
A47K 3/02 ; B29C 6/348 ;
Abstract
The invention relates to a sanitary tub with an outer shell made of steel sheet, an inner shell made of plastic, and an intermediate layer connecting the two shells. A protective coating is applied to the outer shell to protect against corrosion. The outer shell is provided with a coating applied to both the inner and outer sides. This coating consists of a conversion layer produced by phosphatizing, and a lacquer forming on the outer side the abrasion and impact resistant protective coating. On the inner side of the shell an agent effectively imparts adhesion between the steel sheet and the intermediate layer without mechanical roughening.