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:
Dec. 03, 2024
Filed:
Jan. 24, 2024
Texas Wind Tower Co., Dallas, TX (US);
John Buttles, Los Angeles, CA (US);
Texas Wind Tower Co., Dallas, TX (US);
Abstract
Forming superconducting radio frequency (SRF) cavities with hydrostatically controlled bulging, using a pressurizing incompressible medium, such as urethane elastomer, for hydroforming a metal tube in a mold. The urethane elastomer functions as the pressurizing incompressible medium in the hydroforming process. Stretch-thinning of the metal tube wall is reduced by a decrease in concentrated bending deformation thereof. Friction between the inner wall of the metal tube and the incompressible medium constrains the plastic flow of the tube wall material, thus reducing the stretch deformation and thickness reduction thereof. A stepped press ram may be used to pressurize the incompressible medium material and then pushes on an end of the tube to feed extra tube length into the expanding tube wall for reducing thinning thereof.