(19)
(11) EP 0 336 782 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.09.1990 Bulletin 1990/38

(43) Date of publication A2:
11.10.1989 Bulletin 1989/41

(21) Application number: 89303521.2

(22) Date of filing: 10.04.1989
(51) International Patent Classification (IPC)4: A63C 11/00
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 08.04.1988 GB 8808337

(71) Applicant: SKI RECOVERY SYSTEMS LIMITED
London E1 1NU (GB)

(72) Inventors:
  • Rowan, David
    98 Commercial Road London E1 1NU (GB)
  • Jayson, Daniel Marcus
    98 Commercial Road London E1 1NU (GB)

(74) Representative: Smith, Martin Stanley et al
Stevens, Hewlett & Perkins 1 St. Augustine's Place
Bristol BS1 4UD
Bristol BS1 4UD (GB)


(56) References cited: : 
   
       


    (54) Ski alarm system


    (57) An alarm (1,2) unit for a ski (3,4) has a battery (18) powered circuit (20) which energises an audible alarm in response to the output from a movement detector on indication of absence of movement for a predetermined time. This allows a buried ski or a buried skier to be detected. A remotely controlled mode switch (22) enables the unit to be switched to a theft mode in which the alarm is energised on detection of movement by the movement responsive unit.







    Search report