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Delivery device

  • US 6,058,946 A
  • Filed: 10/24/1997
  • Issued: 05/09/2000
  • Est. Priority Date: 10/25/1996
  • Status: Expired due to Fees
First Claim
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1. A delivery device for delivering a dose of washing material into the interior of a washing apparatus, the device comprising:

  • a chamber for containing the dose of washing material to be delivered, the chamber being selectively openable or closable for selectively allowing communication between the interior of the chamber and the outside of the device; and

    temperature sensitive actuation means constructed and arranged for causing the chamber to be opened from a closed condition at a point or stage in the wash cycle of the apparatus at which a predetermined temperature within the interior of the apparatus is reached, wherein the chamber includes at least one opening for allowing the selective communication between the interior of the chamber and the outside of the device, and the device further includes closure means for selectively closing or opening the at least one opening in the chamber, the opening of the chamber resulting from the actuation means causing the closure means to move from their closed condition to their open condition at the predetermined temperature and wherein the housing is a two part housing, the housing having a lower housing part defining the chamber within which the dose of washing material is contained and from which it is released via apertures in a lower region of the lower housing part, and an upper housing part which is cooperable with the lower housing part, the closure means for the apertures being provided by respective wall portions of the upper housing part, which wall portions close or open the apertures in the lower housing part as the two housing parts move between their relative closed and opened positions.

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