Joseph G Dimmick

41290879, Dec 12, 1978

Aug 19, 1977

5/826019

Joseph G. Dimmick - Annapolis MD
William J. Weingartner - Annapolis MD
Alan S. Fields - Silver Spring MD
Donald L. Fairhead - Annapolis MD
Rosemary Musson - Millersville MD

The United States of America as represented by the Secretary of the Navy - Washington DC

B63H 2504

114144E

This invention is a display system to assist a human operator in manually ntrolling a ship. This system may be operated in a conventional autopilot mode, where the system controls the ship completely; in a conventional hand electric mode, where the helsman manually controls the ship unaided by the system; and in a third mode, where the autopilot provides the helmsman all the information needed to steer the ship properly while the helmsman maintains direct manual control over the ship. In addition to the usual displays such as a rudder angle indicator and a compass repeater, the system provides a display which shows both the actual angle of the helm wheel and optimum angle for the helm wheel calculated by the autopilot.

56509430, Jul 22, 1997

Apr 10, 1995

8/419538

Lloyd E. Powell - Severna Park MD
Joseph G. Dimmick - Odenton MD

Leak Detection Services, Inc. - Annapolis MD

G01M 324

364550

A portable computing device is used for acoustic testing of valve systems for valve leaks. Transducers are applied to appropriate locations in the valve system to obtain sound signals, which are fast Fourier transformed into valve signatures. Multiple signatures are displayed simultaneously and are compared automatically by the system to derive a recommended result and manually to make determinations of valve leaks by the differential signature method or the like. The signatures and the user's determinations are stored on a hard drive. Various panels are displayed to give the user step-by-step instructions for performing the test. The results can be reported to the client's office computers.