US 4,011,615 AGranted

Personnel transfer gangway

AssigneeContinental Oil Company

InventorsOrwin G. Maxson, Marvin L. Peterson

Life of this patent

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Abstract

A gangway for transferring personnel between a ship and a fixed structure is formed by first and second mating extensible members which are arranged to form a platform. Springs are mounted inside the platform which permit the first and second members to elongate or shorten about a neutral point in order to accommodate a movement of the ship during heavy seas. Attaching devices are provided in each end of the gangway to secure it to the ship and to the fixed structure, respectively. An elastic tread can be placed on the gangway so that, when the gangway elongates or shortens, personnel walking on the gangway will not be injured or lose footing. A plurality of hoops can be attached along the gangway with elastic material stretched between the hoops and covering same so that, should personnel momentarily lose their footing, they will not be thrown overboard.

Claims4

Dependent claims

A personnel transfer gangway between a ship and a fixed structure, said gangway having first and second ends comprising:

a. first and second mating extensible member means comprising a first and second set of parallelly-spaced bars, each set having a first end and a second end;
means for rigidly securing said first end of each of said sets in a plane;
means for slidably interlocking said second ends together;
and spring biasing means mounted between said second ends of one set and the first ends of said remaining set;
b. biasing means attached between said first and second extensible member means for forcing said extensible members to a predetermined length wherein force along the longitudinal axis of said mating extensible members will yieldably oppose elongating or shortening of said first and second mating extensible members about said predetermined length;
c. means mounted to said first mating member at said first end of said gangway for securing said first mating member to said ship;
and
d. means mounted on said second mating member and said second end of said gangway for securing said second mating member to said fixed structure.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/631,016Filed 12 Nov 1975
Granted: 15 Mar 1977
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B63B 27/14
Arrangement of ship-based loading or unloading equipment for cargo or passengers: of ramps, gangways or outboard ladders ; Pilot lifts
E01D 15/24
Movable or portable bridges; Floating bridges: bridges or similar structures, based on land or on a fixed structure and designed to give access to…
E02B 17/027
Placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto: steel structures
B63B 2017/0072
Vessels parts, details, or accessories, not otherwise provided for: seaway compensators