Portable bench-top cleanroom for use as a work station

Description

FIG. 1 is a front perspective view of a portable bench-top cleanroom for use as a work station, showing our new design;

FIG. 2 is a reduced side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 3 is an exploded reduced front perspective view thereof;

FIG. 4 is a front perspective view of a second embodiment of a portable bench-top cleanroom for use as a work station, showing our new design, the sole difference from the first embodiment residing in the spherical portion being of an opaque material; and,

FIG. 5 is a rear, top and right side perspective view of FIG. 4.

The bottom of the claimed design is flat and unornamented.

Referenced Cited
U.S. Patent Documents
999880 August 1911 Schaeffer
2832986 May 1958 Seck
4108509 August 22, 1978 Piet et al.
4804392 February 14, 1989 Spengler
Patent History
Patent number: D330757
Type: Grant
Filed: Aug 2, 1989
Date of Patent: Nov 3, 1992
Assignee: Safetech Limited
Inventors: Richard P. DeLaney (Dublin), Mark Cunnane (Dublin)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 7/388,553
Classifications