(19)
(11) EP 1 762 277 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.07.2008 Bulletin 2008/29

(43) Date of publication A2:
14.03.2007 Bulletin 2007/11

(21) Application number: 06254222.0

(22) Date of filing: 11.08.2006
(51) International Patent Classification (IPC): 
A62C 13/76(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 12.08.2005 GB 0516560

(71) Applicant: Carr, Roger
Norwich NR4 6AP (GB)

(72) Inventor:
  • Carr, Roger
    Norwich NR4 6AP (GB)

(74) Representative: Forsyth, Helen Jane et al
Nash Matthews 90-92 Regent Street
Cambridge, CB2 1DP
Cambridge, CB2 1DP (GB)

   


(54) Fire extinguisher head cap


(57) There is provided a fire extinguisher head cap (12) incorporating a valve with a valve body (16) having an upper portion formed with a screw thread and wherein the valve body has a lower portion formed with an integral channel (36) in which is seated an o-ring (38) for sealing surfaces external to the valve.
In a first embodiment, the upper portion, lower portion and channel are integrally formed in the valve body (16). In a second embodiment, the valve body comprises an outer body (16') joined to an inner body (16") formed with a channel (36) in which is seated the sealing means, wherein the inner body extends beyond the outer body so that the channel and seal are clear of the outer body. The inner body is formed with a second channel (36') in which is seated a further o-ring means to seal the valve body (16) internally.







Search report