Hydraulic and earth engineering – Marine structure or fabrication thereof – With work deck vertically adjustable relative to floor
Patent
1979-12-07
1981-12-15
Taylor, Dennis L.
Hydraulic and earth engineering
Marine structure or fabrication thereof
With work deck vertically adjustable relative to floor
74606R, E02B 1708
Patent
active
043056865
ABSTRACT:
An offshore drilling platform protection device for use on an offshore oil well drilling vessel including a drilling platform supportable on a plurality of extendable legs wherein each leg is moved by a rack gear assembly, which rack gear assembly includes an otherwise exposed first gear which engages a second gear positioned in a housing having a rectangular corner opening through which the first gear extends, the protection device including first and second protective sections adapted for mounting over the first gear adjacent to the rectangular corner of the housing for the second gear, the first and second protective sections cooperating to provide an L-shaped opening which communicates with the opening at the second gear housing for protecting the first gear while allowing the first gear to mesh with the second gear.
REFERENCES:
patent: 1075808 (1913-10-01), Bales
patent: 1292265 (1919-01-01), Cramer
patent: 1325206 (1919-12-01), Raybon
patent: 2912882 (1959-11-01), Wilson
patent: 3044269 (1962-07-01), Tourneau
patent: 3153941 (1964-10-01), Christian
patent: 3454868 (1948-11-01), Gibson et al.
patent: 3851482 (1974-12-01), LeTourneau et al.
Atwood Oceanics, Inc.
Taylor Dennis L.
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