(19)
(11) EP 4 454 990 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.06.2025 Bulletin 2025/26

(43) Date of publication A2:
30.10.2024 Bulletin 2024/44

(21) Application number: 24172748.6

(22) Date of filing: 26.04.2024
(51) International Patent Classification (IPC): 
B63C 3/12(2006.01)
(52) Cooperative Patent Classification (CPC):
B63C 3/12; B63C 3/06
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 26.04.2023 US 202363498316 P
02.10.2023 US 202363587207 P
25.04.2024 US 202418645508

(71) Applicant: Sunstream Corporation
Kent, Washington 98032 (US)

(72) Inventors:
  • Hey, Kenneth E.
    Kent, WA 98032 (US)
  • Stuart, George
    Kent, WA 98032 (US)
  • Halverson, Loern A.
    Kent, WA 98032 (US)
  • Stanford, Dean A.
    Kent, WA 98032 (US)
  • Van Olst, Kent B.
    Kent, WA 98032 (US)
  • Hey, Julie W.
    Kent, WA 98032 (US)

(74) Representative: Uexküll & Stolberg 
Partnerschaft von Patent- und Rechtsanwälten mbB Beselerstraße 4
22607 Hamburg
22607 Hamburg (DE)

   


(54) HIGH SPEED HYDRAULIC WATERCRAFT LIFT


(57) A high-speed watercraft lift for raising and lowering a watercraft relative to a body of water, the lift comprising a cradle (102) configured to support the watercraft, a cable (124) suspending the cradle, a rotatable spindle (130) configured take up the cable, and a submergible rotary motor (136). The cradle comprises a number of interconnected beams (114) and a number of bunks (118) connected to at least some of the interconnected beams. The cable is liftably linked to at least one of the interconnected beams. The rotatable spindle is configured to coil portions of the cable to raise the cradle and uncoil the portions of the cable to lower the cradle. The submergible rotary motor is configured to rotate the spindle.







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Search report