Animal watering valve

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Description

FIG. 1 is a left, rear perspective view of an animal watering valve showing my new design;

FIG. 2 is a right, front perspective view thereof;

FIG. 3 is a left, rear perspective view thereof showing the switch cover in an open position; and,

FIG. 4 is a right, front perspective view thereof showing the switch cover in an open position.

Referenced Cited
U.S. Patent Documents
D219778 January 1971 Leeming
D241557 September 1976 Olde
666026 January 1901 Richards
718550 January 1903 Vaughn
935268 September 1909 Levedahl
1677446 July 1928 Hartmetz
1877197 September 1932 Price et al.
2636513 April 1953 Schmid
2809800 October 1957 Ahl
3646955 March 1972 Olde
4663816 May 12, 1987 Ove et al.
4903944 February 27, 1990 Butzen et al.
5003927 April 2, 1991 Thompson
Foreign Patent Documents
962256 June 1950 FRX
401596 May 1978 SEX
569721 October 1981 SUX
1286705 August 1972 GBX
8911218 November 1989 WOX
Other references
  • Animal Pet Care Products Catalog; p. 21, item J-Worry Free Waterer.
Patent History
Patent number: D333017
Type: Grant
Filed: Mar 13, 1990
Date of Patent: Feb 2, 1993
Assignee: Alfa-Laval Agri Scandinavia (Sodertalje)
Inventor: Goran Karlsson (Enhorna)
Primary Examiner: James R. Largen
Assistant Examiner: Cathy Anne MacCormac
Law Firm: Hovey, Williams, Timmons & Collins
Application Number: 7/492,878
Classifications
Current U.S. Class: Waterer (2) (D30/132)