Abstract:
The present invention relates to an underwater floating device (1) characterized in that it comprises: an insert (4) comprising a thermoplastic material and a hollow tube (7), a foam (5) of a thermoplastic material, at least partly covering the insert (4), an outer skin (6) comprising a thermoplastic material formed by injection molding over the foam and configured for being in contact with water during use.
Abstract:
A connecting module for connecting seismic equipment towed in water, includes a housing having first and second ends opposite to each other, a removable connecting part removably attached to the first end of the housing, an integral connecting part integrally made with the housing at the second end, the integral connecting part having a bore, and one or more pins configured to enter from an outside of the integral connecting part into the bore. An end of the one or more pins has a conical surface that is configured to transfer a radial force FR applied to the one or more pins, as a longitudinal force FL to an electrical insert to be placed in the bore.
Abstract:
An operation managing system is provided for managing the operation of a navigation control device. The navigation control device is adapted for controlling the depth and/or the lateral position of a towed acoustic linear antenna and including a body to which is attached a set of wings. The operation managing system operates the navigation control device according to a degraded operating mode, by acting on at least one non-released and motorized wing when detecting that at least one wing of the set of wings has been released or must be released.
Abstract:
A retriever system for retrieving a marine equipment. The retriever system comprises a hollow body having a first opening, a cap adapted to close the first opening of the hollow body and adapted to be removed. A buoyancy assembly housed in the hollow body and adapted to exit the hollow body when the cap is removed. A linkage system maintains the buoyancy assembly linked to the hollow body of the retriever system. The buoyancy assembly comprises first inflatable element and a second inflatable element, and an inflating system configured to, when activated, inflate the first inflatable element, so as to enable exiting of at least the second inflatable element of the buoyancy assembly out of the hollow body. Said inflating system is configured to start or to continue inflating the second inflatable element when said second inflatable element is out of the hollow body.
Abstract:
A wing releasing system is provided for releasing at least one wing of a set of wing or wings of a navigation control device. The navigation control device is adapted for controlling depth and/or lateral position of a towed acoustic linear antenna and includes a body to which is attached the set of wing or wings. The wing releasing system includes: a releasing decision circuit, for generating a release request signal when detecting that a foreign object is caught by at least one wing of the set of wing or wings; and an actuator comprised in the navigation control device, for releasing from the body the at least one wing of the set of wing or wings, when receiving the release request signal.
Abstract:
The present invention relates to an underwater floating device (1) characterized in that it comprises: an insert (4) comprising a thermoplastic material and a hollow tube (7), a foam (5) of a thermoplastic material, at least partly covering the insert (4), an outer skin (6) comprising a thermoplastic material formed by injection molding over the foam and configured for being in contact with water during use.
Abstract:
An operation managing system is provided for managing the operation of a navigation control device. The navigation control device is adapted for controlling the depth and/or the lateral position of a towed acoustic linear antenna and including a body to which is attached a set of wings. The operation managing system operates the navigation control device according to a degraded operating mode, by acting on at least one non-released and motorized wing when detecting that at least one wing of the set of wings has been released or must be released.
Abstract:
An ocean bottom node for collecting seismic data, the ocean bottom node including a compounded housing including an electronics housing and a pinger housing, electronics located inside the electronics housing, and a battery pack configured to supply electrical power to the electronics. The pinger housing is permanently open to an ambient water while the electronics housing is sealed from the ambient water, and the pinger housing is configured to selectively and directly attach to the electronics housing.
Abstract:
A wing releasing system is provided for releasing at least one wing of a set of wing or wings of a navigation control device. The navigation control device is adapted for controlling depth and/or lateral position of a towed acoustic linear antenna and includes a body to which is attached the set of wing or wings. The wing releasing system includes: a releasing decision circuit, for generating a release request signal when detecting that a foreign object is caught by at least one wing of the set of wing or wings; and an actuator comprised in the navigation control device, for releasing from the body the at least one wing of the set of wing or wings, when receiving the release request signal.