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:
Feb. 10, 1981
Filed:
Jun. 02, 1978
Michel Sirel, Paris, FR;
Les Cables de Lyon, Lyon, FR;
Abstract
A circular wave guide for transmitting the TE.sub.11 mode of propagation is manufactured such that it is suitable for winding on a drum. During manufacture, a flexible thin-walled conductive tube is reinforced by an outer protective covering of plastic material and by an inner reinforcing member also of plastic material. The inner reinforcing member may be of tubular cross-section as shown, or may have some other cross-section, e.g. cruciform. The inner reinforcing member may be made of a material which shrinks on heating so that it can be removed once the wave guide has been unwound from the drum employed during transport. The conductor tube may be periodically intended to improve its flexibility.