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US3953977A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for damping waves

Assignee: Mitsui Engineering and Shipbuilding Co Ltd
•
Filing: 1974-07-11
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Granted: 1976-05-04
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Expires: 1994-07-11
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Abstract

Abstract A device for damping waves comprising an inclined frame having a plurality of barriers and moored to the sea bottom so as to be downwardly sloped against the wave in the sea water, and an upright frame having a plurality of barriers provided on the upper end of said inclined frame and perpendicular to the plane of the inclined frame.

Inventors

  • 👤 Keizo Kikui
  • 👤 Michio Sasaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 05:26
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/062; A; A01; A01K; A01K61/00; A01K61/70; E02B2201/00; E02B2201/04; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81; Y02W; Y02W30/00; Y02W30/50; Y02W30/62

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 233 words
Device for damping seawater waves comprising an inclined frame constructed with upper and lower elongated floating members and a plurality of spacer members mounting said floating members in spaced parallel relation in an inclined plane with the floating members disposed generally parallel to the waves at the surface of the seawater, an upright frame mounted on and projecting upwardly from the upper floating member and having a plane perpendicular to the plane of said inclined frame, said upright frame including a top member spaced from said upper floating member and side members connecting said top member with said upper floating member, a plurality of inclined and upright barrier elements comprising annular elements secured to and mounted between said members respectively in the planes of said inclined frame and said upright frame, said barrier elements being mounted in their respective planes with gaps therebetween to permit passing of seawater through said frames, and mooring means for connecting the inclined frame to the sea bottom extending forwardly and rearwardly from said lower member and being of a length to maintain said lower floating member submerged at a depth below the surface to permit said upper floating member to float at the surface so that the inclined frame is downwardly sloped against the waves in the seawater and the upright frame is positioned at the surface of the seawater to project upwardly from said upper member.
Claim 2
Dependent Claim 233 words
Device for damping seawater waves comprising an inclined frame constructed with upper and lower elongated floating members and a plurality of spacer members mounting said floating members in spaced parallel relation in an inclined plane with the floating members disposed generally parallel to the waves at the surface of the seawater, an upright frame mounted on and projecting upwardly from the upper floating member and having a plane perpendicular to the plane of said inclined frame, said upright frame including a top member spaced from said upper floating member and side members connecting said top member with said upper floating member, a plurality of inclined and upright barrier elements comprising annular elements secured to and mounted between said members respectively in the planes of said inclined frame and said upright frame, said barrier elements being mounted in their respective planes with gaps therebetween to permit passing of seawater through said frames, and mooring means for connecting the inclined frame to the sea bottom extending forwardly and rearwardly from said lower member and being of a length to maintain said lower floating member submerged at a depth below the surface to permit said upper floating member to float at the surface so that the inclined frame is downwardly sloped against the waves in the seawater and the upright frame is positioned at the surface of the seawater to project upwardly from said upper member.
Claim 3
Dependent Claim 40 words
A device according to claim 1 wherein said inclined frame spacer members extend perpendicularly between said upper and lower floating members, said device including stays projecting angularly upward from said spacer members to said upright frame to brace the latter.

References Cited (Backward Citations)

US1643691A Cited
US3222871A Cited
US3276210A Cited
US3595026A Cited
US3592005A Cited
US3691774A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-05-04 1979-11-03 1980-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-05-04 1983-11-03 1984-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-05-04 1987-11-03 1988-05-04 $7700.00 Window Closed / Lapsed

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