Leroy O Swartz

US Patent:

50413120, Aug 20, 1991

Filed:

Feb 13, 1990

Appl. No.:

7/479380

Inventors:

LeRoy Swartz - Bensalem PA

International Classification:

B05C 1500
B05D 300

US Classification:

427378

Abstract:

Metal strip is coated with a coating material containing a volatilizable solvent and is heated in an enclosure for vaporizing the solvent. Condensation of vapors on the metal strip within the enclosure is avoided by providing an exhaust of sufficient capacity to withdraw all of the heated and vaporized solvent, after which it is burned, mixed with a gas having a temperature lower than its temperature, and returned into the enclosure and applied against the surface of the metal strip.

US Patent:

43703577, Jan 25, 1983

Filed:

Mar 11, 1981

Appl. No.:

6/242621

Inventors:

LeRoy O. Swartz - Bensalem PA

Assignee:

Cleveland Gear Company - Bensalem PA

International Classification:

B05D 302

US Classification:

427 46

Abstract:

An improved process and/or system for coating of a metal strip includes means for continuous travel of the strip and a chamber for substantially completely enclosing the strip beyond an area for application of a mixture of coating and solvent. In that chamber is at least one induction coil for induction heating the strip to drive off the solvent, means for introducing substantially pure nitrogen near opposite ends of the travel of the strip therein and in between the places of introduction of the substantially pure nitrogen means for removing the resultant mixture of nitrogen and solvent which mixture is then at least largely separated into its components and reclaimed nitrogen brought back into the chamber at locations between the location of removal of the mixture and the respective locations of introduction of substantially pure nitrogen. The temperature of the interior atmosphere of the chamber is automatically maintained at a predetermined temperature preferably within the range between about 300. degree. F. and 600. degree. F. and at all events about 300. degree. F.