Channels for a filter bank supporting latticework

- Flakt AB
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Description

FIG. 1 is a top perspective view of the channels for a filter bank supporting latticework showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top perspective view of the outside channel thereof shown separately for clarity of illustration;

FIG. 4 is a bottom perspective view of FIG. 3;

FIG. 5 is a top perspective view of the inside channel thereof shown separately for clarity of illustration; and

FIG. 6 is a bottom perspective view of FIG. 5.

Referenced Cited
U.S. Patent Documents
D194587 February 1963 Waring et al.
3053353 September 1962 Miller
3103184 September 1963 Schreyer et al.
3300940 January 1967 Golasz
3441995 May 1969 Revell et al.
3676966 July 1972 Ragland
4174911 November 20, 1979 Maccario et al.
Patent History
Patent number: D299546
Type: Grant
Filed: Jul 23, 1985
Date of Patent: Jan 24, 1989
Assignee: Flakt AB (Stockholm)
Inventor: Bertil Larsson (Tyreso)
Primary Examiner: James M. Gandy
Law Firm: Oblon, Fisher, Spivak, McClelland & Maier
Application Number: 6/757,934
Classifications
Current U.S. Class: Extruded Shape (19) (D25/119)