RICHARD R LANGHOFF
Engineering in Mattapoisett, MA
License number
Massachusetts 41089
Issued Date
Feb 25, 1999
Expiration Date
Jun 30, 2010
Type
Metallurgical Engineer
Address
Address
Mattapoisett, MA 02739
Professional information
Electro-Acoustic Transducer Insulation Structure
US Patent:
5220538, Jun 15, 1993
Filed:
Aug 8, 1991
Appl. No.:
7/749651
Inventors:
Peter F. Flanagan - Cranston RI
Ascanio G. DiPippo - Middletown RI
Richard R. Langhoff - Mattapoisett MA
George V. Morris - East Providence RI
Ascanio G. DiPippo - Middletown RI
Richard R. Langhoff - Mattapoisett MA
George V. Morris - East Providence RI
Assignee:
Raytheon Company - Lexington MA
International Classification:
H04R 1700
US Classification:
367157
Abstract:
A bonded insulator flexural transducer for use in sonar applications includes a hollow metal tube having an inner surface, a segmented ceramic electromechanical driver disposed along an inner surface of the tube and a bonded insulator disposed between the segmented driver and the metal tube. The bonded insulator includes a high dielectric strength film, a layer of a binding fiber material, and a layer of epoxy. The dielectric film provides the electrical isolation between the driver and the shell and the binding fiber material provides a reliable bond by effectively trapping the epoxy between the driver and shell.