Chemical feeder for swimming pools


FIG. 1 is a front elevational view of a chemical feeder for swimming pools showing my new design.

FIG. 2 is a side elevational view, the opposite side being identical in appearance.

FIG. 3 is a top plan view.

FIG. 4 is a rear elevational view.

FIG. 5 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
D211724 July 1968 Schneider, Jr.
D216691 May 1970 Bates et al.
D220958 June 1971 Marsh
D249275 September 5, 1978 Mackay et al.
D251675 April 24, 1979 Kratz
4151092 April 24, 1979 Grimm
Patent History
Patent number: D288227
Type: Grant
Filed: Aug 27, 1984
Date of Patent: Feb 10, 1987
Assignee: Heldor Industries, Inc. (Morristown, NJ)
Inventor: Ural M. Robinson (St. Louis, MO)
Primary Examiner: B. J. Bullock
Assistant Examiner: Brian N. Vinson
Law Firm: Kalish & Gilster
Application Number: 6/644,630
Current U.S. Class: D23/3