# US 9,434,457 B2 · Boat launch

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- Number: US 9,434,457 B2
- Document ID: US9434457B2
- Status: Granted
- Kind: B2
- Application number: 14/432,698
- Filed: 2013-08-19
- Published: 2015-10-01
- Granted: 2016-09-06
- Earliest claimed: 2012-10-05
- Assignees: Kme Germany GmbH & Co. KG
- Applicants: KME Germany GmbH & Co. KG
- Inventors: Michael Volland; Markus Seehöfer; Reinhard Hintemann; Bernd Sagebiel
- Web page: https://patentgrep.com/patent/US9434457B2

## CPC

- B63C 3/00: Launching or hauling-out by landborne slipways; Slipways (ship-borne guides for handling lifeboats or the like B63B23/30; cranes winches, or the like B66; ship lifting for adapting to different water levels E02C)
- B63B 21/00: Tying-up; Shifting, towing, or pushing equipment; Anchoring ({of buoys B63B22/04;} dynamic anchoring B63H25/00 {; equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. for landing purposes, E02B})
- B63B 27/30: {Arrangement of ship-based loading or unloading equipment} for transfer at sea between ships or between ships and off-shore structures
- E02B 3/20: Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards (tying-up, anchoring B63B21/00, e.g. bollards for shipping B63B21/06; buoys B63B22/00 {; equipment specially adapted for use in locks or dry docks E02C1/10})
- E02B 17/0026: {against corrosion}
- E02B 17/003: {Fenders}
- E06C 9/02: rigidly mounted
- B63B 2021/003: {Mooring or anchoring equipment, not otherwise provided for}
- B63C: LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS (floating nets, floating slipways, or the like for recovering aircraft from the water B63B35/52)
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)
- E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F)
- E06C: LADDERS (E04F11/00 takes precedence; step-stools A47C12/00; adaptation of ladders to use on ships B63B, to use on aircraft B64; scaffolding E04G)

## Abstract

A boat launch for the pillars of offshore installations includes fender pipes extending substantially perpendicularly to sea level and a ladder being positioned closer to the pillars than the fender pipes. The fender pipes have an inner pipe consisting of steel that is not resistant to seawater and an outer pipe consisting of a seawater resistant metal alloy.

## Claims

### Claim 1

A boat launch for pillars of offshore installations, the boat launch comprising:
fender pipes constructed from an inner pipe made of steel that is not resistant to seawater and an outer pipe made of a seawater-resistant metal alloy and connected with one another in a force-locked manner, with the fender pipes extending substantially perpendicular to sea level and being spaced from the pillars;
a ladder arranged closer to the pillars than the fender pipes;
support pipes coupling the fender pipes transversely to the pillars and constructed from an inner pipe made of steel that is not resistant to seawater and an outer pipe made of a seawater-resistant metal alloy;
struts connecting the ladder with the fender pipes, wherein the ladder and the struts are constructed exclusively of a seawater-resistant metal alloy,
wherein the support pipes coupling the fender pipes transversely to the pillars are located between the struts connecting the ladder with the fender pipes as considered in a vertical direction,
wherein the seawater-resistant metal alloy is selected from the group of alloys consisting of: copper based alloys, copper-nickel alloys containing from 70 to 90 wt.-% copper, with a balance of nickel and melt-induced impurities.

### Claim 2 (depends on 1)

The boat launch of claim 1, wherein the outer pipe of the fender pipes is a seamlessly drawn pipe.

### Claim 3 (depends on 1)

The boat launch of claim 1, wherein a wall thickness of each of the outer pipes is in a range of 1 to 10 mm.