USD355253S

USD355253S - Impeller for refrigerant compressors

Info

Publication number: USD355253S
Application number: US29/005,166
Authority: US
Inventors: Willem Jansen; Steve H. Pancygrau; Bradford R. Myrick; John M. Griffith
Original assignee: Northern Research and Engineering Corp
Current assignee: Ingersoll Rand Energy Systems Corp
Priority date: 1993-02-25
Filing date: 1993-02-25
Publication date: 1995-02-07
Anticipated expiration: 2009-02-07

Description

FIG. 1 is a perspective view of an impeller for refrigerant compressors according to the present invention, FIG. 1 is enlarged 1.125 relative to FIG. 2;

FIG. 2 is a front view of an impeller for refrigerant compressors according to the present invention, the left side, right side and rear views are the substantially the same as the front view;

FIG. 3 is a top view of an impeller for refrigerant compressors according to the present invention;

FIG. 4 is a bottom view of an impeller for refrigerant compressors according to the present invention;

FIG. 5 is a perspective view of an impeller for refrigerant compressors showing a second embodiment of our new design, the bottom view is substantially the same as FIG. 4, FIG. 5 is enlarged 1.125 relative to FIG. 6;

FIG. 6 is a front view of FIG. 5, the left side, right side and rear views are substantially the same as the front view;

FIG. 7 is a top view of FIG. 5;

FIG. 8 is a perspective view of one of the blades shown in FIGS. 1 through 4, shown separately for clarity of illustration, the blades of the second embodiment of the impeller for refrigerant compressors shown in FIGS. 5 through 7 being substantially the same;

FIG. 9 is a front end view of the blade shown in FIG. 8;

FIG. 10 is a left side view of the blade shown in FIG. 8;

FIG. 11 is a right side view of the blade shown in FIG. 8;

FIG. 12 is a rear end view of the blade shown in FIG. 8;

FIG. 13 is a top view of the blade shown in FIG. 8;

FIG. 14 is a bottom view of the blade shown in FIG. 8;

FIG. 15 is a perspective view of another one of the blades shown in FIGS. 1 through 4, shown separately for clarity of illustration, the blades of the second embodiment of the impeller for refrigerant compressors shown in FIGS. 5 through 7 being substantially the same;

FIG. 16 is a front end view of the blade shown in FIG. 15;

FIG. 17 is a left side view of the blade shown in FIG. 15;

FIG. 18 is a right side view of the blade shown in FIG. 15;

FIG. 19 is a rear end view of the blade shown in FIG. 15;

FIG. 20 is a top view of the blade shown in FIG. 15; and,

FIG. 21 is a bottom view of the blade shown in FIG. 15.

The blades of FIGS. 8 through 21 are shown twice the size of the blades in FIGS. 2 through 4.

The difference between the first and second embodiments resides in the appearance of the slots in the top surface.

Claims

The ornamental design for an impeller for refrigerant compressors, as shown and described.