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. 21, 1978
Filed:
Nov. 10, 1976
James J Feliks, Doraville, GA (US);
The Mead Corporation, Dayton, OH (US);
Abstract
A drum heading machine for securing a closure plate within an end of a tubular element or sleeve includes a mandrel for supporting the sleeve thereabout with an end of the sleeve projecting beyond an end of the mandrel to define a sealing area on the inner surface thereof and for supporting a closure plate disposed within the sealing area of the sleeve and in contact with the adjacent end of the mandrel, the outer peripheral sealing edge area of the closure plate being arranged to engage the inwardly crimped sealing area of the sleeve and at least one of the sealing areas being coated with thermoplastic material, a reciprocable header arranged to engage and crimp the projecting end of the tubular element inwardly to force said sealing areas into sealing contact with each other, and pneumatic means forming a part of the header and operable before crimping of said end of the tubular element is completed for simultaneously directing hot air to the entire outer peripheral sealing edge area of the closure element and to the entire sealing area of said tubular element.