Patent ID: 7303720

Claim:
A melt transfer device, comprising: a first shut off valve including a first melt channel, a first sleeve and a first pin located within the first sleeve, the first pin being movable with respect to the first sleeve, wherein the first pin is configured to slidably contact the first sleeve over a portion of the travel of the first pin thereby fluidly closing an end of the first melt channel; and a second shut off valve including a second melt channel, a second sleeve and a second pin located within the second sleeve, the second sleeve being movable with respect to the second pin wherein the second sleeve is configured to slidably contact the second pin over a portion of the travel of the second sleeve thereby fluidly closing an end of the second melt channel, wherein the first shut off valve is configured to engage the second shut off valve such that the first sleeve presses the second sleeve, and the second pin presses the first pin, thereby fluidly coupling the first melt channel to the second melt channel.