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. 17, 1976
Filed:
Mar. 18, 1974
Richard Schmidt, Mclean, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A solid or hollow shaft has an aluminum or titanium matrix reinforced with rcuate-shaped beryllium ribbons arranged around a central rod or core to form a circular cross-sectional configuration. The shaft has a high degree of torsional stiffness which enables it to be used on advanced aircraft or high-speed rotating machinery without mid-support bearings. The shaft may be formed by cladding the beryllium rods in aluminum or titanium and arranging them around the central rod or core to form a preform with a circular cross-sectional configuration. The preform is then subjected to hydrostatic pressure, causing the beryllium rods to deform into arcuate-shaped ribbons. The core may then be retained or leached out to provide a hollow shaft.