Flow channel for drip irrigation with central cavity

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top plan view of a “flow channel for drip irrigation with central cavity” showing our new design, a typical hose being indicated in broken line;

FIG. 2 is a side elevational view thereof; and,

FIG. 3 is a left hand end view thereof.

The broken line showing of a hose is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a “flow channel for drip irrigation with central cavity”, as shown.

Referenced Cited
U.S. Patent Documents
3870236 March 1975 Sahagun-Barragan
3939875 February 24, 1976 Osborn et al.
3961112 June 1, 1976 Genevitz et al.
4009832 March 1, 1977 Tiedt
4022384 May 10, 1977 Hoyle et al.
4047995 September 13, 1977 Leal-Diaz
4053109 October 11, 1977 Gilead
4173309 November 6, 1979 Drori
4175882 November 27, 1979 Gilead
4177946 December 11, 1979 Sahagun-Barragan
4247051 January 27, 1981 Allport
4285472 August 25, 1981 Okada et al.
4307841 December 29, 1981 Mehoudar et al.
4354639 October 19, 1982 Delmer
4385727 May 31, 1983 Spencer
4413787 November 8, 1983 Gilead et al.
4460129 July 17, 1984 Olson
4473191 September 25, 1984 Chapin
4473525 September 25, 1984 Drori
4534515 August 13, 1985 Chapin
4548360 October 22, 1985 Delmer et al.
4573640 March 4, 1986 Mehoudar
4655397 April 7, 1987 Gorney
4722759 February 2, 1988 Roberts et al.
4763842 August 16, 1988 Dunn
4807668 February 28, 1989 Roberts
4874132 October 17, 1989 Gilead
4880167 November 14, 1989 Langa et al.
4984739 January 15, 1991 Allport
5076498 December 31, 1991 Townsend
5111995 May 12, 1992 Dumitrascu et al.
5118042 June 2, 1992 Delmer
5123984 June 23, 1992 Allport et al.
5133707 July 28, 1992 Rogers et al.
5246171 September 21, 1993 Roberts
5282578 February 1, 1994 De Frank
5318657 June 7, 1994 Roberts
5375770 December 27, 1994 Roberts
5387307 February 7, 1995 Roberts
5520339 May 28, 1996 Kuo
5522551 June 4, 1996 DeFrank et al.
5620143 April 15, 1997 Delmer et al.
5634595 June 3, 1997 DeFrank et al.
5673852 October 7, 1997 Roberts
5690769 November 25, 1997 Daigle et al.
5732887 March 31, 1998 Roberts
5785785 July 28, 1998 Delmer et al.
5855324 January 5, 1999 DeFrank et al.
5944260 August 31, 1999 Wang
6116523 September 12, 2000 Cabahug et al.
Foreign Patent Documents
2726358 December 1977 DE
0069487 January 1983 EP
0196763 October 1986 EP
2484195 December 1981 FR
WO 85/00003 January 1985 WO
WO 92/21228 December 1992 WO
Patent History
Patent number: D455055
Type: Grant
Filed: Nov 16, 2000
Date of Patent: Apr 2, 2002
Assignee: Roberts Groups Holdings, LLC (San Marcos, CA)
Inventors: John C. Roberts (Carlsbad, CA), Jack Butler (Carlsbad, CA)
Primary Examiner: Robin V. Taylor
Attorney, Agent or Law Firm: Brown, Martin, Haller & McClain
Application Number: 29/132,853
Classifications
Current U.S. Class: D8/1; Pipe, Tubing Or Hose (D23/266)
International Classification: 0801;