Liquid siphon for aquariums

Description

FIG. 1 is a perspective view of a liquid siphon for aquariums showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is an opposite side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof.

The broken away portion on the tube in FIGS. 1, 4-7 is to indicate an indeterminate length.

Referenced Cited
U.S. Patent Documents
3549015 December 1970 Willinger
4023305 May 17, 1977 Harschel
4035299 July 12, 1977 Vroeginday
4073305 February 14, 1978 Brown et al.
4414997 November 15, 1983 Jacobson et al.
4552515 November 12, 1985 Endo
Patent History
Patent number: D317970
Type: Grant
Filed: Apr 19, 1989
Date of Patent: Jul 2, 1991
Inventor: Fong-Chen Yen (Jea-Jong Tsuen, Shiah-Yng Shiang, Tainan Shien)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Bacon & Thomas
Application Number: 7/340,571