| 摘要 |
A purge block including a first and second first diameter disk constructed from a substantially rigid material; a resilient disk having a second diameter larger than the first diameter concentrically aligned and secured between the first and second first diameter disks; at least one vent hole formed through the first and second first diameter disks and the resilient disk in a manner to form a pathway through the first and second first diameter disks and the resilient disk; and a positioning mechanism protruding from one of the first and second first diameter disks. The resilient disk is preferably constructed from a heat resistant material. The positioning mechanism is preferably a handle or centrally oriented flexible member attachment device.
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