Scientific Solutions, Inc.

Other

USA as Represented by Secretary of the Navy

Peter J Stein

Steven Edmund Euerle

Armen Bahlavouni

Douglas W Andersen

Amy Vandiver

Michael Richard Birmann

John Timothy Wood

Joseph Steven Johnson

Michael G Fitzgerald

John T Wood

Michael R Birmann

A method for detecting an object in a body of water by generating a plurality of signals and applying each signal to a separate submerged sonar node that is a part of an array of sonar nodes.

Swimmer detection sonar network

A non-invasive elastic wave fluid level sensing system for use in sludge laden environments, including transmitting and receiving transducers mounted on an outer face of a wall of a container for a fluid and along a propagation path for an elastic wave transmitted through the wall of the container wherein the elastic wave has a frequency of less than 5 kHz, more preferably less than about 2 kHz, and most preferably less than 1 kHz. A signal processor determines a change in a characteristic of the elastic wave between when a fluid is present in the container in the region of the propagation path and when a fluid is not present in the container in the region of the propagation path. One embodiment utilizes multiple horizontally oriented transmitting and receiving transducer pairs to detect levels of the fluid in the container. Another uses a vertically oriented transmitting and receiving transducer pair and the characteristic of the elastic wave is dependent upon the proportion of the propagation path along which the fluid is present in the container, thereby indicating the level of the fluid in the container. The detector may include a cross correlation detector for determining the change in the characteristics of the elastic wave, the elastic wave preferably has a frequency of 1000 Hz or lower, and the elastic wave characteristic may be the propagation time of the elastic wave, the amplitude of the received elastic wave or the phase of the received elastic wave.

Non-invasive low frequency elastic wave fluid level sensing system for sludge laden environments

A deployable buoy having a nose cone and a tail section interconnected by a housing. The buoy comprises an outer shell and a canister with the outer shell axially moveable relative to the canister. An expansion chamber is provided between the outer shell and canister to produce and increase the axial length of the buoy and thereby increase the buoyancy of the buoy from a low buoyancy to a greater buoyancy and to orient and maintain the buoy in a substantially vertical orientation. The buoy is provided with a hot fluid generation source to melt a layer of ice and a nose cone ejection system to expose an antenna for the transmission of data to the central processing system.

Communication buoy with ice penetrating capabilities

A hydrophone arrangement, housed within a dome shaped concrete and steel bunker, to accurately establish a bearing of a target object while diminishing potential displacement of the hydrophone arrangement from an initial installed position. A plurality of hydrophones are centrally positioned within the bunker and equally spaced about a periphery of a steel cylindrical member so that each hydrophone receives acoustic energy in a time delay manner with respect to the other adjacent hydrophones so that a bearing determination may be made from information received by a single stand alone bunker. An acoustic horn may also be provided to focus the acoustic energy towards the hydrophones to improve the signal-to-noise ratios and provide control of the phase of the acoustic energy as the energy is received by the hydrophones.

Hydrophone arrangement and bunker for housing same

A sensing apparatus, for use in adverse conditions comprising a housing having an aperture formed therein. A generally spherically shaped housing, which is larger in size than the aperture, partially extends through the aperture. The generally spherically shaped housing supports a desired sensor and is supported for rotation about an axis of rotation. A drive mechanism is provided for rotating the generally spherically shaped housing to and fro about its rotational axis from a use position, in which the sensor is positioned outside the housing to obtain sensor measurements, to a retracted position in which the sensor is completely accommodated within the housing and sheltered from the elements. A peripheral scraping ring is mounted circumferentially about the aperture in close proximity to an exterior surface of the generally spherically shaped housing but spaced therefrom. The scraping ring is positioned to remove any snow, ice, rain, freezing rain, moisture, dirt, soot, or other contaminants contained on the exterior surface of the generally spherically shaped housing during rotation thereof. The sensing apparatus also includes fans, a calibration device and a heater to maintain the sensor in an operable condition.

Weatherproof sensing apparatus with rotatable sensor

A sun shield assembly composed of a canopy of pliable material which can withstand the environment of a beach, which canopy is generally rectangular in shape and which is spanned by spaced, laterally extending battens preferably received in pockets in the canopy, while the canopy is supported by at least one cross support beam, which beam includes spaced downwardly extending supporting legs; at each of the corners of the canopy, a grommet is provided from which extends a tether with a peg on the end of each to connect the tethers to the earth; the tethers are adjustable to respond to variations in wind velocity, commonly encountered at a beach.

Sun shield assembly

A pop-up straw having an upper buoyant section and a lower flexible section is mounted within a container. When the container is opened, the upper end of the pop-up straw rises through the opening. The straw is particularly useful with a push in tab easy open end container. A collar which holds the upper portion of the straw is mounted below the opening and just below the downward extension of the tab. Opening the tab pushes downward against the upper end of the straw until the tab clears the upper end of the straw. The upper end of the straws then pops up through the opening.

Growing community of inventors

Hollis, NH, United States of America

Peter J Stein