Ships – Building – Canal and ferry boats
Patent
1974-09-24
1976-11-16
Shapiro, Jacob
Ships
Building
Canal and ferry boats
114220, 267140, E02B 322, B63B 2104, F16F 712
Patent
active
039915824
ABSTRACT:
A fender system including a supporting frame mounted on a stationary structure by energy-absorbing shock mounting members, and the frame carrying annular bumper members stacked one above the other and sized for rotation about a pipe column, the bumper members each having their respective end surfaces stepped at an annular step in such a way that the stepped surfaces of adjacent bumpers mate and interlock, and the bumper members having multiple relief holes extending in from their end surfaces parallel to the axis of the bumper members and tending to impart a degree of asymmetrical distortion to an impacted bumper member causing it to creep around the pipe column on which it is supported; such rotation being aided by friction reducing means on the surfaces of the bumper members.
REFERENCES:
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patent: 2655005 (1953-10-01), Kinneman
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patent: 3084517 (1963-04-01), Bell
patent: 3106182 (1963-10-01), Burleigh
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patent: 3462960 (1969-08-01), Bruehl
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patent: 3564858 (1971-02-01), Pogonowski
patent: 3828715 (1974-08-01), Matsushita
patent: 3873076 (1975-03-01), Evans
Thomerson Clarence T.
Waldrop Tom C.
Regal Tool & Rubber Co. Inc.
Shapiro Jacob
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