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:
Aug. 09, 1983
Filed:
Mar. 04, 1982
Harold R Lillibridge, Burlingame, CA (US);
John Sullivan, San Jose, CA (US);
Champion International Corporation, Stamford, CT (US);
Abstract
An apparatus for applying latex areas to the seal flaps of paper envelopes and drying the latex is adapted to be placed either 'in-line' or 'off-line' with respect to a die-cut high speed envelope manufacturing machine. The apparatus includes a rotatable electrically insulated drum which acts as the ground for a radio frequency dryer (dielectric dryer) whose positive electrodes are adjustably spaced from the drum surface. The envelopes, during application of the latex and its drying, are held between flexible belts having projecting guides and are conveyed, still between the belts, by the rotating drum beneath the electrodes, with the latex exposed to the radio frequency drying.