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:
Apr. 06, 1976
Filed:
Jun. 24, 1974
Charles L Adams, Euless, TX (US);
Pressure Vessels, Inc., Fort Worth, TX (US);
Abstract
The specification discloses an apparatus and process for beading the projecting ends of heat exchange tubes to a header or tube sheet of a water heater. The apparatus comprises an expandable mandrel having outwardly movable jaws supported around the forward end of a spindle. The mandrel is adapted to be inserted into a tube and to be expanded outward to tightly grip the inside of the tube near the header and to expand the tube against the header. An annular beading head having an annular beading groove is supported around the spindle rearward of the jaws and is adapted to be moved forward to engage the groove with the projecting end of the tube to force the end of the tube radially outward and against the side of the header.