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:
Nov. 30, 1999
Filed:
Mar. 28, 1997
Richard B Freeman, Oxford, MI (US);
Mark C Handley, Beverly Hills, MI (US);
The Budd Company, Troy, MI (US);
Abstract
A forming device including discreet heating zones along the axial length and circumferential portion of a mold cavity. One zone can be heated to cause the heated tube portion to become more elastic than the non-heated tube portions. As a result, less axial force and radial pressures are required in order to provide the necessary metal deformation against the mold halves. Preferably, the heating zones are provided by way of a series of induction coils disposed along the axial length and circumferential portion of the tube. Each induction coil can be individually energized so that select portions of the tube are heated in a controlled manner.