John Di Matteo

US Patent:

42953723, Oct 20, 1981

Filed:

Dec 5, 1968

Appl. No.:

4/781488

Inventors:

John De Matteo - Whitestone NY
Frank Villani - Brooklyn NY

Assignee:

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

International Classification:

G01M 112

US Classification:

73382G

Abstract:

The output of the vertical accelerometer of a ships inertial navigation sem (SINS), in pulse form, is first counted and scaled to provide an output related directly to the total acceleration. The SINS computer provides the latitude, and north and east velocities of the ship, which are then converted into the theoretical gravity and the Coriolis error. These two factors are subtracted from the total scaled acceleration, and the resultant output is passed through a filter that corresponds to a particular weighting function (heavily weighted for the middle time) to remove the factor of ships heave acceleration. The final output is the free-air gravity anomaly in terms of real time.

US Patent:

44046669, Sep 13, 1983

Filed:

Jun 2, 1981

Appl. No.:

6/269171

Inventors:

Arthur P. Stevens - Jenkintown PA
John De Matteo - Doylestown PA
Richard M. Beard - Ventura CA

Assignee:

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

International Classification:

B63B 2128

US Classification:

367131

Abstract:

A quick deployment vehicle (QDV) for implanting a transponder or beacon on he ocean bottom in an upright position exposed for receiving or transmitting acoustic signals. The vehicle includes a ballistic body of separable fore and aft sections. The fore section includes a core mass for penetrating the ocean sediment, and the aft section includes a beacon for signal transmission. A predetermined interval after impact, as determined by a programmed deceleration profile stored in memory, the sections will separate. The sensed deceleration of the vehicle is compared at predetermined intervals to the stored profile, and when the sensed level is less than the stored level, a squib is fired to separate the two sections. The aft section penetrates and remains exposed above the sediment, while the fore section further penetrates into the ocean bottom.