Maxine E Duncan

US Patent:

56154690, Apr 1, 1997

Filed:

Sep 6, 1995

Appl. No.:

8/524064

Inventors:

Donald A. Jensen - Kent WA
Maxine E. Duncan - Salmon ID

Assignee:

The Boeing Company - Seattle WA

International Classification:

B23P 1900

US Classification:

294265

Abstract:

A machine (28) for use in removing first and second mandrels (20) from a stringer assembly (26) that includes a composite I-beam and the mandrels is disclosed. The mandrels are located in channels on opposite sides of the composite I-beam. The machine includes a framework (30) having an elongate platform (36) for supporting the stringer assembly (26). Mounted on the framework are a plurality of stations (32) located long the longitudinal platform (36). Each station includes first and second movable platforms (42) mounted to opposite sides of the longitudinal platform from one another. Each platform includes a clamp (38 and 40) for sequentially clamping the stringer assembly to the framework when the mandrels are being removed. The movable platforms are attached to the mandrels. A jackscrew mechanism moves the movable platforms with respect to one another when the sides of the stringer assembly are clamped to the platform.

US Patent:

55028861, Apr 2, 1996

Filed:

Sep 2, 1994

Appl. No.:

8/300107

Inventors:

Donald A. Jensen - Kent WA
Maxine E. Duncan - Salmon ID
Joel M. Thomas - Kent WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

B23P 1900

US Classification:

29701

Abstract:

A machine (28) for use in removing first and second mandrels (20) from a stringer assembly (26) that includes a composite I-beam and the mandrels is disclosed. The mandrels are located in channels on opposite sides of the composite I-beam. The machine includes a framework (30) having an elongate platform (36) for supporting the stringer assembly (26). Mounted on the framework are a plurality of stations (32) located long the longitudinal platform (36). Each station includes first and second movable platforms (42) mounted to opposite sides of the longitudinal platform from one another. Each platform includes a clamp (38 and 40) for sequentially clamping the stringer assembly to the framework when the mandrels are being removed. The movable platforms are attached to the mandrels. A jackscrew mechanism moves the movable platforms with respect to one another when the sides of the stringer assembly are clamped to the platform.