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:
Jun. 19, 1990
Filed:
Mar. 10, 1988
Applicant:
Inventors:
Josef Fischer, Ried im Innkreis, AT;
Walter A Stephan, Braunau, AT;
Assignee:
Fischer Advanced Composite Components Gesellschaft m.b.H., Reid im Innkreis, AT;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138149 ; 138138 ; 138140 ; 138143 ; 138D / ; 138D / ;
Abstract
In a pipe line for an engine, in particular a cooling line in aircraft construction, the walls of the pipe line are composed of a load-bearing inner layer (2) of fibre reinforced, curable synthetic resin and of a heat insulating outer layer (3) of fibre reinforced curable synthetic resin, bonded to the inner layer (2). For the production of the two layers (2, 3) a removable core (1) is used, for example composed of a low melting metal alloy.