Wheelchair cellular cushion
FIG. 1 is a top, front and left side perspective view of a wheelchair cellular cushion showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is an enlarged right side elevational view thereof;
FIG. 4 is an enlarged left side elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is an enlarged rear elevational view thereof;
FIG. 7 is an enlarged front elevational view thereof;
FIG. 8 is a top, front and left side perspective view of a wheelchair cellular cushion showing a second embodiment of my new design;
FIG. 9 is a top plan view of FIG. 8;
FIG. 10 is an enlarged right side elevational view of FIG. 8;
FIG. 11 is an enlarged left side elevational view of FIG. 8;
FIG. 12 is a bottom plan view of FIG. 8;
FIG. 13 is an enlarged rear elevational view thereof;
FIG. 14 is an enlarged front elevational view thereof;
FIG. 15 is a top, front and left side perspective view of a wheelchair cellular cushion showing a third embodiment of my new design;
FIG. 16 is a top plan view of FIG. 15;
FIG. 17 is an enlarged right side elevational view of FIG. 15;
FIG. 18 is an enlarged left side elevational view of FIG. 15;
FIG. 19 is a bottom plan view of FIG. 15;
FIG. 20 is a an enlarged rear elevational view of FIG. 15;
FIG. 21 is an enlarged front elevational view of FIG. 15;
FIG. 22 is a top, front and left side perspective view of a wheelchair cellular cushion showing a fourth embodiment of my new design;
FIG. 23 is a top plan view of FIG. 22;
FIG. 24 is an enlarged right side elevational view of FIG. 22;
FIG. 25 is an enlarged left side elevational view of FIG. 22;
FIG. 26 is a bottom plan view of FIG. 22;
FIG. 27 is an enlarged rear elevational view of FIG. 22;
FIG. 28 is an enlarged front elevational view of FIG. 22;
FIG. 29 is a top, front and left side perspective view of a wheelchair cellular cushion showing a fifth embodiment of my new design;
FIG. 30 is a top plan view of FIG. 29;
FIG. 31 is an enlarged right side elevational view of FIG. 29;
FIG. 32 is an enlarged left side elevational view of FIG. 29;
FIG. 33 is a bottom plan view of FIG. 29;
FIG. 34 is an enlarged rear elevational view of FIG. 29;
FIG. 35 is an enlarged front elevational view of FIG. 29;
FIG. 36 is a top, front and left side perspective view of a wheelchair cellular cushion showing a sixth embodiment of my new design;
FIG. 37 is a top plan view of FIG. 36;
FIG. 38 is an enlarged right side elevational view of FIG. 36;
FIG. 39 is an enlarged left side elevational view of FIG. 36;
FIG. 40 is a bottom plan view of FIG. 36;
FIG. 41 is an enlarged rear elevational view of FIG. 36; and,
FIG. 42 is an enlarged front elevational view of FIG. 36.
The sole difference between each of the six embodiments resides in the appearance of the number of cells. The broken line showing of a fill tube and valve shown in FIGS. 1-42 is for illustrative purposes only and forms no part of the claimed design.
| D294212 | February 16, 1988 | Sias et al. |
| 3605145 | September 1971 | Graebe |
| 3870450 | March 1975 | Graebe |
| 4279044 | July 21, 1981 | Douglas |
| 4541136 | September 17, 1985 | Graebe |
| 4605582 | August 12, 1986 | Sias et al. |
| 4673605 | June 16, 1987 | Sias et al. |
| 4698864 | October 13, 1987 | Graebe |
| 4864671 | September 12, 1989 | Evans |
| 5052068 | October 1, 1991 | Graebe |
| 5163196 | November 17, 1992 | Graebe et al. |
Type: Grant
Filed: Nov 20, 1992
Date of Patent: Feb 21, 1995
Inventor: Robert H. Graebe (Belleville, IL)
Primary Examiner: Lisa P. Lichtenstein
Law Firm: Polster, Lieder, Woodruff & Lucchesi
Application Number: 0/1,699
