Combined supporting framework and filter housings of a multiple stage air filtering system

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view taken from the front and right end of a combined supporting framework and filter housings of a multiple stage air filtering system embodying my new design;

FIG. 2 is a perspective view taken from the front and left end thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right end elevational view thereof;

FIG. 6 is a left end elevational view thereof;

FIG. 7 is a top plan view thereof;

The broken line representation of a blower, connecting tubes, electrical controls, wiring and casters in FIG. 1 are for purposes of illustration only.

Referenced Cited
U.S. Patent Documents
D222633 November 1971 Carter et al.
D237750 November 1975 Martin
1823693 September 1931 McLaughlin et al.
3802168 April 1974 Deckas
4127397 November 28, 1978 O'Nan
4268282 May 19, 1981 MacKenzie
Patent History
Patent number: D268782
Type: Grant
Filed: Apr 7, 1980
Date of Patent: Apr 26, 1983
Assignee: Engineered Air Division of Thermal Components, Inc. (Buffalo, NY)
Inventor: Donald F. Minnick, Jr. (Hamburg, NY)
Primary Examiner: James R. Largen
Law Firm: Bean, Kauffman & Bean
Application Number: 6/137,793
Classifications
Current U.S. Class: D23/149
International Classification: D2304;