Diffusion plate for oxygenation treatment of sludge or the like

- Degremont S.A.
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top plan view of a diffusion plate for oxygenation treatment of sludge or the like showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is another side elevational view thereof, taken from a position ninety degrees from that of FIG. 2;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a perspective view thereof, the broken line representation of additional diffusion plates and a distribution pipe is for purposes of illustration only.

Referenced Cited
U.S. Patent Documents
D232238 July 1974 La Borde
D243531 March 1, 1977 Striglo, Jr.
3153682 October 1964 Walker
3279773 October 1966 Schwartz
3334819 August 1967 Olavson
3396950 August 1968 Wood
3954922 May 4, 1976 Walker et al.
4007246 February 8, 1977 Gorden
Patent History
Patent number: D247248
Type: Grant
Filed: Mar 29, 1976
Date of Patent: Feb 14, 1978
Assignee: Degremont S.A. (Rueil-Malmaison)
Inventor: Jean Durot (Villepreux)
Primary Examiner: James R. Largen
Attorney: V. M. Creedon
Application Number: 5/671,692
Classifications
Current U.S. Class: D23/1
International Classification: D2301;