Transparent patient enclosure for use with respiratory filter apparatus
FIG. 1 is a perspective view from above of the transparent patient enclosure of the invention;
FIG. 2 is a top plan view of the transparent patient enclosure of FIG. 1;
FIG. 3 is a bottom plan view of the transparent patient enclosure of FIG. 1;
FIG. 4 is a side elevational view of the transparent patient enclosure of FIG. 1, the other side being the same;
FIG. 5 is a front plan view of the transparent patient enclosure of FIG. 1;
FIG. 6 is an end plan view of the transparent patient enclosure of FIG. 1; and,
FIG. 7 is a side view of the other side of the transparent patient enclosure of the invention. The broken line showing of the support brackets, patient and face cone are included for the purpose of illustration only and form no part of the claimed invention.
| D269369 | June 14, 1983 | Koh |
| 2664890 | January 1954 | Wallace |
| 2702546 | February 1955 | Gilroy et al. |
| 3000379 | September 1961 | Viers |
| 3306289 | February 1967 | Cameto et al. |
| 3318308 | May 1967 | Groshulz |
| 3540446 | November 1970 | Dixon |
Type: Grant
Filed: Jun 20, 1991
Date of Patent: May 10, 1994
Inventor: Thomas V. Choate (East Sandwich, MA)
Primary Examiner: A. Hugo Word
Assistant Examiner: I. Simmons
Attorney: Richard P. Crowley
Application Number: 7/718,850
