Unit for removing dust from industrial equipment by substantially increasing air flow

Description

FIG. 1 is a front perspective view showing the unit for removing dust from industrial equipment by substantially increasing air flow;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an enlarged left end perspective view thereof in one position; and,

FIG. 6 is an enlarged left end perspective view thereof in an alternative position.

The right end of the design is substantially a mirror image of that shown except for the projecting tubes at the top right end.

Referenced Cited
U.S. Patent Documents
1735494 November 1929 Chapman
2163294 June 1939 Simons
4139879 February 13, 1979 Laws
4227894 October 14, 1980 Proynoff
4528612 July 9, 1985 Spengler
Patent History
Patent number: D358875
Type: Grant
Filed: Sep 20, 1993
Date of Patent: May 30, 1995
Inventor: Walter Spengler (CH-4105 Biel-Benken)
Primary Examiner: Lisa P. Lichtenstein
Law Firm: Burgess, Ryan & Wayne
Application Number: 0/13,178
Classifications