Dispensing – Processes of dispensing
Patent
1987-09-03
1989-11-07
Shaver, Kevin P.
Dispensing
Processes of dispensing
222566, 222575, B65D 2542
Patent
active
048785997
ABSTRACT:
A nozzle for a tube comprising material to be expelled through the nozzle in a direction from the tube to an outlet at the end of the nozzle opposite the tube, the material being hardenable upon exposure to air and residual material at the tip of the nozzle forming a hardened plug, the nozzle comprising: a series of hollow members, the members having a first and second end wherein the first end has a first inner cross-sectional dimension and the second end has a second inner cross-sectional dimension, wherein the second dimension is at least as great as the first dimension, the first dimension being different for each member, wherein the member having the largest the first dimension is at one end of the nozzle and the member having the smallest dimension is at the other end of the nozzle, the members being positioned between the largest and the smallest dimensioned members in order of decreasing the dimensions in the direction of the material is to be expelled and, whereby the series forms a hollow vessel having a stepwise decreasing inner cross-sectional first dimension, wherein the largest dimensioned member comprises an opening at one end suitable for connection to the tube, and wherein the members are of a length greater than the length of the plug.
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