Airlock

FIG. 1 is a perspective view of an airlock showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is another perspective view of the airlock showing my new design;

FIG. 9 is an enlarged view of a portion of FIG. 1 ;

FIG. 10 is an enlarged view of a portion of FIG. 2 ;

FIG. 11 is an enlarged view of a portion of FIG. 4 ;

FIG. 12 is an enlarged view of a portion of FIG. 6 ;

FIG. 13 is an enlarged view of a portion of FIG. 7 ; and,

FIG. 14 is an enlarged view of a portion of FIG. 8 .

The broken lines shown in the drawings are for the purpose of illustrating boundaries of the enlarged views of FIGS. 1 , 2 , 4 , and 6 - 8 , and form no part of the claimed design.