Patents by Inventor Henry H. Hering, Jr.

Henry H. Hering, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4125948
    Abstract: A dryer for a freshly printed web from a gravure printing press achieves greatly improved performance as compared with prior art dryers by the use of the following novel structure and operating features:(1) Air drawn into the dryer housing through the web inlet slot and heated air from nozzles in the upstream part of the housing, which air removes a great percentage of the solvent vaporized from the ink, goes directly to exhaust.(2) Heated air from nozzles in the downstream part of the housing, and air drawn into the housing through the web outlet slot, goes to the blower and heater for recirculation through the nozzles. That air removes only residual solvent and thus has only a low concentration of vaporized solvent.The foregoing features assure a very low solvent vapor concentration in the heated air.(3) Make-up air goes directly to the blower and the heater from an adjustable air intake.(4) The velocity of air impinging the web is maintained at or about 12,000 f.p.m.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: November 21, 1978
    Assignee: R. R. Donnelley & Sons Company
    Inventors: Henry H. Hering, Jr., Gerald J. Bender