GEORGE D ROGERS
Engineering in Enfield, CT

5509625, Apr 23, 1996

Dec 21, 1993

8/171010

David A. Oullette - Farmington CT
George D. Rogers - Enfield CT

United Technologies Corp. - Windsor Locks CT

B64D 1512

244134D

A monitoring system is disclosed to automatically indicate excessive wear of electrical brushes in deicer assemblies for aircraft. In the preferred embodiment, the indicator system includes an electrical brush with an initially insulated wire embedded in it; and an electrical detection circuit, connected to the brush, with a warning device such as a light. When the brush becomes worn, through excessive "end wear" and/or "flank wear", the insulated wire becomes exposed and eventually stripped at the point of wear. This creates a conductive path from the electrical brush, through the bare wire spot, to the detection circuit. This turns on the warning device to indicate that the brush has become worn and needs replacement.

RE30802, Nov 24, 1981

Feb 22, 1979

6/014654

George D. Rogers - Enfield CT

Combustion Engineering, Inc. - Windsor CT

B23P 1702

29421R

A method is disclosed for securing a repair sleeve within a tubular fluid conveying conduit. The sleeve is positioned within the tube so that it extends coextensive with a region of degraded tube wall and partially beyond the axial extremes of the degraded area. A radially outwardly directed force is then applied to the tubular sleeve from within along a portion of the sleeve at each end, extending beyond the degraded area. The force is sufficient to cause outward plastic deformation of both the sleeve and the tube resulting in an interference mechanical joint therebetween.