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. 06, 1991
Filed:
Apr. 25, 1990
John S Cullen, Buffalo, NY (US);
Samuel A Incorvia, Tonawanda, NY (US);
Multiform Desiccants, Inc., Buffalo, NY (US);
Abstract
An adsorbent packet including a casing of permeable material, adsorbent in the casing, and a sleeve of metal foil fused to a central portion of the casing by ultrasonic welding and having a layer of nylon on the outside thereof. A method of fabricating an adsorbent packet including the steps of superimposing a first sheet of permeable material over a first sheet of metal foil, superimposing a second sheet of metal foil over a second sheet of permeable material, forming the first sheets into a pocket with the metal foil on the outer surface of the central portion thereof, filling the pocket with adsorbent, superimposing the second sheet of permeable material and the second sheet of metal foil over the pocket with the second sheet of metal foil on the outside thereof and in line with the first sheet of metal foil, sealing edge portions of all of the first and second sheets to form a casing containing adsorbent with a metal foil sleeve on the outside thereof and with a seam extending completely around the casing, and triming the flash off of the material outside of the seam.