HYDRAULIC DRIVES FOR USE IN CHARGING SYSTEMS, BALLAST SYSTEMS, OR OTHER SYSTEMS OF UNDERWATER VEHICLES

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United States of America Patent

SERIAL NO

15173214

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An apparatus includes first and second tanks each configured to receive and store a refrigerant under pressure. The apparatus also includes at least one generator configured to receive flows of the refrigerant between the tanks and to generate electrical power based on the flows of the refrigerant. The apparatus further includes first and second hydraulic drives associated with the first and second tanks, respectively. Each hydraulic drive includes a first piston within the associated tank, a channel fluidly coupled to the associated tank and configured to contain hydraulic fluid, and a second piston within the channel and configured to move within the channel in order to vary an amount of the hydraulic fluid within the associated tank and vary a position of the first piston within the associated tank. The channel of each hydraulic drive has a cross-sectional area that is less than a cross-sectional area of the associated tank.

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Patent Owner(s)

Patent OwnerAddress
RAYTHEON COMPANY870 WINTER STREET WALTHAM MA 02451-1449

International Classification(s)

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  • 2016 Application Filing Year
  • B63G Class
  • 152 Applications Filed
  • 121 Patents Issued To-Date
  • 79.61 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heinen, Gregory W Lowell, US 18 68

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Patent Citation Ranking

  • 4 Citation Count
  • B63G Class
  • 16.67 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges522301 - 1011 - 200123456789101112131415161718192021222324

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