(19)
(11) EP 0 267 699 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.08.1988 Bulletin 1988/35

(43) Date of publication A2:
18.05.1988 Bulletin 1988/20

(21) Application number: 87309191

(22) Date of filing: 19.10.1987
(84) Designated Contracting States:
ES SE

(30) Priority: 12.11.1986 GB 8626967

(71) Applicant: THE MARCONI COMPANY LIMITED
 ()

(72) Inventor:
  • Willis, Leonard John
     ()

   


(54) Releasable closure arrangement


(57) A device for releasing a load (3) from a housing (1) on impact with water. The load is supported in the housing by an O-ring (7) which is stretched about the load and fits into a shaped recess (11). On impact with the water the load is forced upwards into the housing, but the O-ring is prevented from moving upwards by a stop. The O-ring relaxes when the load has moved up far enough to be clear of it, then falls free. The load itself is then free to fall from the housing under the force of gravity.







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