(19)
(11) EP 0 249 421 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.06.1988 Bulletin 1988/23

(43) Date of publication A2:
16.12.1987 Bulletin 1987/51

(21) Application number: 87305032

(22) Date of filing: 08.06.1987
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 06.06.1986 GB 8613844

(71) Applicant: J.E. Johnson & Sons (Engineers) Ltd.
 ()

(72) Inventor:
  • Johnson, Robert James
     ()

   


(54) Security door


(57) A security door comprising a frame 10 in which is rotatably mounted a cylindrical door member 11 having an opening 12 to register with inlet and outlet openings the frame 10, the door member 11 being rotatable about a vertical axis, and the interior of the door member 11 defining a cylindrical space, and a floor having a weight sensitive zone 37 and a non sensitive zone 36 which form parts of a non rotatable floor.







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