Combined aquarium filter and aerator

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Description

FIG. 1 is a perspective view of the combined aquarium filter and aerator showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of air conduit structure is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D205582 August 1966 Willinger
D220486 April 1971 Sesholtz
D294172 February 9, 1988 Willinger
2767509 October 1956 Breithaupt
3006476 October 1961 Halpert
4532037 July 30, 1985 Willinger
4712327 December 15, 1987 Ross, Sr. et al.
4994177 February 19, 1991 Bogar, Jr.
5077932 January 7, 1992 Hetherington
5100543 March 31, 1992 Stauffer et al.
Other references
  • Dynaflo Motor Filter p. 32--Metaframe Catalogue #70, 1970.
Patent History
Patent number: D368297
Type: Grant
Filed: May 11, 1994
Date of Patent: Mar 26, 1996
Inventor: Eugene W. Dunlap (St. Louis, MO)
Primary Examiner: A. Hugo Word
Assistant Examiner: Robin V. Taylor
Attorney: Richard C. Litman
Application Number: 0/22,775
Classifications
Current U.S. Class: Immersion Type (e.g., Aquarium Filter, Etc.) (D23/210)