ROBERT W GAUTHIER
Engineering in Assonet, MA
License number
Massachusetts 29020
Issued Date
Feb 24, 1978
Expiration Date
Jun 30, 2012
Type
Civil Engineer
Address
Address
Assonet, MA 02702
Professional information
Multi-Depth Acoustic Signal Generating Device
US Patent:
6155196, Dec 5, 2000
Filed:
Jun 7, 1999
Appl. No.:
9/337221
Inventors:
Edmund J. Sullivan - Portsmouth RI
Robert W. Gauthier - Assonet MA
Robert W. Gauthier - Assonet MA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01C 1900
US Classification:
116 70
Abstract:
A simple mechanical device is provided which generates acoustic signals at ne or more specified depths. The device consists of a spring loaded piston placed in a wall of a housing, the spring loading biasing the piston away from the housing. The piston is subjected to a pressure differential between the exterior and interior of the housing such that the piston moves against the spring force and into the housing as the pressure differential, corresponding to a depth of the housing beneath a water surface, increases. As the piston moves further into the housing, it contacts a series of latches, each latch being used to detain spring loaded striker. The latches are spaced along the travel path of the piston such that each striker is associated with a specific piston movement, or depth. When the piston contacts a latch, the striker is released and strikes against a ledge within the housing, creating one of the acoustic signals.
Depth Sensitive Mechanical Acoustic Signal Generating Device
US Patent:
6142094, Nov 7, 2000
Filed:
May 17, 1999
Appl. No.:
9/313311
Inventors:
Edmund J. Sullivan - Portsmouth RI
Robert W. Gauthier - Assonet MA
Robert W. Gauthier - Assonet MA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
G01L 1900
US Classification:
116 70
Abstract:
A simple, mechanical device is provided which produces an acoustic signal a specified depth. The device consists of a shear plug in an exterior wall of the device housing which prevents the movement of a spring biased piston. The plug is subjected to increasing differential pressure between the exterior and interior of the housing as the depth of the device beneath the water surface increases. At a known pressure differential, corresponding to a specified depth, the shear plug fails, allowing for the actuation of the piston. The spring biased piston strikes against a ledge in the device, creating the acoustic signal.