Air filter unit for use in respirators
Yoshikawa July 4, 1
U.S. patent number D360,029 [Application Number D/021,578] was granted by the patent office on 1995-07-04 for air filter unit for use in respirators. This patent grant is currently assigned to Grand Bleu International, Inc.. Invention is credited to Yukio Yoshikawa.
| United States Patent | D360,029 |
| Yoshikawa | July 4, 1995 |
Air filter unit for use in respirators
Claims
The ornamental design for an air filter unit for use in respirators, as shown and described.
| Inventors: | Yoshikawa; Yukio (Saitama, JP) |
|---|---|
| Assignee: | Grand Bleu International, Inc.
(New York, NY) |
| Appl. No.: | D/021,578 |
| Filed: | April 20, 1994 |
| Current U.S. Class: | D23/365; D24/110 |
| Field of Search: | ;D23/365 ;D24/110 ;128/205.12,205.28,202.26 ;55/DIG.33,DIG.35 |
References Cited [Referenced By]
U.S. Patent Documents
| 1585113 | May 1926 | Robert |
| 3580250 | May 1971 | Oroza |
| 4334533 | June 1982 | Henkin |
| 4649912 | March 1987 | Collins |
| 5222488 | June 1993 | Forsgren |
| 379381 | Sep 1932 | GB | |||
Attorney, Agent or Firm: Darby & Darby
Description
FIG. 1 is a top front perspective view of a preferred embodiment of the air filter unit for use in respirators;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevational view thereof, the right side being a mirror image of that shown; and,
FIG. 4 is a bottom plan view.
The pattern of holes has been partially shown in FIGS. 1 and 3 for ease of illustration, it being understood that the broken lines indicate that said pattern of holes is continuous throughout the areas represented.
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