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:
Mar. 22, 1977
Filed:
Sep. 26, 1974
Czeslaw Deminet, Kent, WA (US);
Other;
Abstract
A method of making a composite diffusion bonded structure, comprising a honeycomb panel portion made up of a honeycomb core sandwiched between two face sheets, and a load carrying structural member bonded thereto. The honeycomb core, face sheets and structural member are preassembled in a vacuum furnace so as to permit exposure of the surfaces which are to be diffusion bonded. A vacuum is drawn and the assembly is heated to near diffusion bonding temperature with the bonding surfaces still exposed to the vacuum environment. Thereafter, the bonding surfaces are brought into contact with very moderate pressure, and are maintained at a temperature and pressure sufficient for diffusion bonding. The assembly is then cooled, with the result being a substantially unitary diffusion bonded structure.