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. 05, 1985
Filed:
Aug. 30, 1984
Applicant:
Inventor:
Roland K Belz, D-7022 Leinfelden-Echterdingen-1, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47K / ;
U.S. Cl.
CPC ...
428 36 ; 15624411 ; 15624418 ; 156250 ; 156279 ; 428 68 ; 428 90 ; 428337 ;
Abstract
The invention relates to a composite foil, particularly a toilet seat support in which at least one thin, outer normally water-insoluble sealing layer (3) is connected to a less thin water-soluble supporting layer (2) optionally by means of one or more intermediate layers. For obtaining a complete tightness at least the sealing layer (3) is constructed in non-porous manner by extruding a foil from a thermoplastic material. Furthermore, the invention relates to a process and apparatus for the production of the foil by extrusion, preferably with a co-extrusion die.