(19)
(11) EP 0 335 616 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.06.1990 Bulletin 1990/24

(43) Date of publication A2:
04.10.1989 Bulletin 1989/40

(21) Application number: 89302959.5

(22) Date of filing: 23.03.1989
(51) International Patent Classification (IPC)4: A63B 21/00
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 28.03.1988 GB 8807440

(71) Applicant: Shankster, Raymond Edwin
South Woodham Ferrers Essex (GB)

(72) Inventor:
  • Shankster, Raymond Edwin
    South Woodham Ferrers Essex (GB)

(74) Representative: Crouch, David John et al
Bromhead & Co. 19 Buckingham Street
London WC2N 6EF
London WC2N 6EF (GB)


(56) References cited: : 
   
       


    (54) An exercise device


    (57) An exercise device comprising a user operated air pump in the form of a piston and cylinder arrangement (20, 28) connected to pump air into an air receiver (22). The connection is made via a non-return valve (32) across which is connected a by-pass valve (36). A control unit (30) is connected to a pressure sensor (38) in the air receiver (22) and an operating member on the by-pass valve (36) so that when the pressure in the air receiver (22) reaches or exceeds a predetermined threshold value, as sensed by the pressure sensor (38), the control unit (30) opens the by-pass value (36) to convert the air pump (20, 28) and air receiver (22) into an air spring.







    Search report