GB9027297D0 - Retractable hydrofoil - Google Patents

Retractable hydrofoil

Info

Publication number
GB9027297D0
GB9027297D0 GB909027297A GB9027297A GB9027297D0 GB 9027297 D0 GB9027297 D0 GB 9027297D0 GB 909027297 A GB909027297 A GB 909027297A GB 9027297 A GB9027297 A GB 9027297A GB 9027297 D0 GB9027297 D0 GB 9027297D0
Authority
GB
United Kingdom
Prior art keywords
retractable hydrofoil
hydrofoil
retractable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB909027297A
Other versions
GB2239842B (en
GB2239842A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WALKER JEAN M
WALKER JOHN G
Original Assignee
WALKER JEAN M
WALKER JOHN G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WALKER JEAN M, WALKER JOHN G filed Critical WALKER JEAN M
Publication of GB9027297D0 publication Critical patent/GB9027297D0/en
Publication of GB2239842A publication Critical patent/GB2239842A/en
Application granted granted Critical
Publication of GB2239842B publication Critical patent/GB2239842B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
GB9027297A 1989-12-20 1990-12-17 Retractable hydrofoil Expired - Fee Related GB2239842B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898928771A GB8928771D0 (en) 1989-12-20 1989-12-20 Device to reduce turbulence in marine craft

Publications (3)

Publication Number Publication Date
GB9027297D0 true GB9027297D0 (en) 1991-02-06
GB2239842A GB2239842A (en) 1991-07-17
GB2239842B GB2239842B (en) 1993-06-23

Family

ID=10668233

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898928771A Pending GB8928771D0 (en) 1989-12-20 1989-12-20 Device to reduce turbulence in marine craft
GB9027297A Expired - Fee Related GB2239842B (en) 1989-12-20 1990-12-17 Retractable hydrofoil

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898928771A Pending GB8928771D0 (en) 1989-12-20 1989-12-20 Device to reduce turbulence in marine craft

Country Status (1)

Country Link
GB (2) GB8928771D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2834686A1 (en) * 2002-01-15 2003-07-18 Pierre Vironneau Shock absorption device for boat keel allowing controlled rearward displacement of keel along boat hull axis comprises movable connections with axial shock absorbers for keel web
NL2003821C2 (en) * 2009-11-18 2011-05-19 Veth Motoren B V STEERING IN THE FRONT OF A VESSEL.
NL2022413B1 (en) * 2019-01-17 2020-08-18 Ps Indus Bvba Keel assembly configured for mounting in a hull of a sailing boat for providing stability and directional guidance to said sailing boat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7034487A (en) * 1986-01-21 1987-08-14 Kransco Manufacturing, Inc. Retractable water board fin

Also Published As

Publication number Publication date
GB2239842B (en) 1993-06-23
GB8928771D0 (en) 1990-02-28
GB2239842A (en) 1991-07-17

Similar Documents

Publication Publication Date Title
GB2235623B (en) Foldable playyard
HU900796D0 (en) Atumobile bumper
EP0343847A3 (en) Retractable antenna
AU108277S (en) Hedge-shears
GB2235054B (en) Retractable zoom-strobe device
HK41196A (en) Signal-source arrangement
GB8900182D0 (en) Convertible push-chair
GB2239842B (en) Retractable hydrofoil
HU900965D0 (en) Alga-destroying produces
CA65346S (en) Hydroplane
GB8909129D0 (en) Multi-purpose bookrest
GB2235671B (en) Improved sail
GB8906303D0 (en) Retractable level
GB8926565D0 (en) Pontoons
GB8923862D0 (en) Hydrofoil craft
GB8920196D0 (en) Hydrofoil craft
AU109997S (en) Pontoon
CA65008S (en) Boat
AU106217S (en) Canoe
GB8929210D0 (en) Liferafts
GB9021508D0 (en) Hydrofoils
GB8908916D0 (en) Floatation aid
GB8923897D0 (en) Sailboards
AU105363S (en) Surfboard
ZA906683B (en) Bow

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19981217