System including a portable heat gun for curing advanced composite workpieces

• US 4,788,413 A
• Filed: 10/21/1987
• Issued: 11/29/1988
• Est. Priority Date: 10/21/1987
• Status: Expired due to Fees

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: General Dynamics Corporation
• Inventors: Eng, Berwyn S.
• Primary Examiner(s): Goldberg, E. A.
• Assistant Examiner(s): LATEEF, MARVIN M
• Application Number:
  US07/111,010
• Time in Patent Office: 405 Days
• Field of Search: 219/364, 219/361, 219/482, 219/483, 219/489, 219/490, 219/501, 219/507, 219/509, 219/510, 34/43, 34/48
• US Class Current: 392/385
• CPC Class Codes: F24H 3/0423 hand-held air guns
• CPC Class Codes: G05D 23/1951 with control of the working time of a temperature controlling device

Abstract

A system for curing advanced composite workpieces including a portable heat gun that provides a flow of heated air against a workpiece. The heat gun is controlled to direct a flow of heated air against an advanced composite workpiece at a predetermined temperature for a predetermined time period and upon cessation of the time period to thereafter direct an unheated flow of air against the advanced composite for a second period of time thereby causing a resin component of the advanced composite to flow within the composite in a prescribed manner and to cure to a desired hardness.

Claims