System for the deployment of marine payloads

Patent metadata

Field	Value
Publication number	US-11072406-B2
Application number	US-201816135460-A
Country	US
Kind code	B2
Filing date	Sep 19, 2018
Priority date	Jan 29, 2016
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

The present invention involves a system for the release of low relief, self-orienting deployable payloads from a platform such as a submersible vehicle and a mechanism of passive buoyancy compensation of the vehicle. The system secures one or more payloads by a vacuum force without an additional mechanical restraining mechanism and deployment of a payload is accomplished by disengaging the vacuum hold to release the payload for its intended function. Once deployed, the payload may reorient itself to a functional orientation without additional assistance.

First claim

We claim:

1. A system for payload deployment in a fluid environment, comprising:
a. at least one deployment chamber, configured to exclude the fluid environment, further comprising:
i. at least one inner wall defining a wet space, the wet space configured to be contiguous with and exposed to the fluid environment;
ii. at least one payload, said at least one payload comprising a first surface and a body housing, wherein the first surface is configured to comprise a portion of a sealing zone;

b. a vacuum mechanism connected to the wet space and configured to generate a vacuum force within the wet space;
c. a vacuum breaker connected to the wet space;
wherein the at least one payload is configured to fit at least partially within the wet space of the deployment chamber;
wherein the first surface is exposed to the fluid environment;
wherein the sealing zone forms a fluid-tight seal with a portion of the at least one inner wall, allowing the wet space to hold a vacuum;
wherein the at least one payload is held within the deployment chamber by the vacuum force; and
wherein the vacuum breaker is configured to remove the vacuum force from the wet space.

2. The system of claim 1 , wherein the at least one payload is held within the at least one deployment chamber solely by the vacuum force.

3. The system of claim 1 , wherein the at least one inner wall, the vacuum mechanism, and the vacuum breaker and the at least one payload experience a first buoyant force and the at least one inner wall, the vacuum mechanism, and the vacuum breaker experience a second buoyant force, and wherein the second buoyant force does not differ more than 20 percent from said first buoyant force.

4. The system of claim 3 , wherein the first buoyant force and second buoyant force are substantially equal.

5. The system of claim 1 , wherein the wet space further comprises an offset mechanism.

6. The system of claim 5 , wherein the at least one inner wall, the vacuum mechanism, the vacuum breaker, the offset mechanism, and the at least one payload-experience a third buoyant force, and wherein the third buoyant force does not differ more than 20 percent from the second buoyant force.

7. The system of claim 6 , wherein the second buoyant force and third buoyant force are substantially equal.

8. A payload for use in fluid environments, comprising:
at least one surface; and
a sealing zone;
wherein a portion of the payload is configured to fit into a deployment system, comprising a deployment chamber;
wherein the sealing zone is configured to form a vacuum seal with a portion of the deployment system;
wherein the deployment system is configured to generate a vacuum force; and
wherein the payload is held within the deployment system by the vacuum force.

9. The payload of claim 8 , wherein payload is held within the deployment chamber solely by the vacuum force.

10. The payload of claim 8 , wherein the payload has a height to width ratio of 2.5 to 1.

11. The payload of claim 8 , wherein the payload comprises functionality of at least one member of a group comprising: mine marking, storing an object, detecting electromagnetic signals, emitting electromagnetic signals, measuring a parameter of the fluid environment, receiving and relaying communications signals, guiding individuals, and mixtures thereof.

12. The payload of claim 8 , wherein the sealing zone further comprises an O-ring.

13. The payload of claim 8 , wherein the payload further comprises payload electronics, and a power source.

14. The payload of claim 8 further comprising:
a leg assembly, comprising at least one leg;
at least one leg attachment point;
a leg release mechanism;
wherein the at least one leg is connected to the payload at the at least one leg attachment point; and
wherein the leg assembly is configured to be in at least a first position and a second position and the leg release mechanism is configured to enable transition between the first position and the second position.

15. The payload of claim 14 , wherein the leg assembly is further configured to enable transition between the first position and the second position while the payload is resting on a surface.

16. A method for payload deployment in a fluid environment, comprising:
a. selecting a system comprising:
at least one deployment chamber;
a vacuum mechanism; and
a vacuum breaker;
wherein the at least one deployment chamber is configured to exclude the fluid environment and comprises at least one inner wall;
wherein said at least one inner wall defines a wet space and said wet space is configured to be contiguous with and exposed to the fluid environment;

b. placing at least one payload into the at least one deployment chamber, the at least one payload comprising a first surface and a portion of a sealing zone;
wherein a fluid-tight seal is formed between the sealing zone and a portion of the at least one inner wall;

c. using the vacuum mechanism to establish a vacuum in the wet space;
d. holding the at least one payload in the at least one deployment chamber solely by the vacuum force in the wet space;
e. placing the system in the fluid environment; and
f. releasing the at least one payload.

17. The method of claim 16 , wherein the vacuum breaker releases the at least one payload by allowing fluid to enter the wet space.

18. The method of claim 16 , wherein the fluid environment comprises a fluid bottom, wherein upon payload release, the at least one payload drops through the fluid environment to the fluid bottom.

19. The method of claim 16 , wherein the at least one payload further comprises at least one leg, at least one leg attachment point, and a leg release mechanism, wherein the each of the at least one leg is connect to the at least one payload at the at least one leg attachment point, wherein the at least one leg is configured to be in at least a first position and a second position and the leg release mechanism is configured to enable transition of the at least one leg between said first position and said second position.

20. The method of claim 19 , wherein the at least one leg is further configured to enable transition between the first position and the second position while the at least one payload is on the fluid bottom.

21. The system of claim 1 , wherein the at least one payload is water-tight having an internal space, and prevents entry of fluid into the internal space.

Assignees

• Woods Hole Oceanographic Inst

Inventors

• Austin Thomas
• Purcell Michael
• Littlefield Robin
• Jaffre Frederic
• Packard Gwyneth
• Mcdonald Glenn

Classifications

• B63G8/33

  of mine-laying means (mine laying vessels other than submarines B63G6/00) · CPC title

• B63G2008/004

  autonomously operating · CPC title

• B63B2211/02

  Oceanography · CPC title

• B63G2008/005

  remotely controlled · CPC title

• B63G8/42

  Towed underwater vessels · CPC title