Precast drain inlet

Description

FIG. 1 is a perspective view of a precast drain inlet, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being the same as the side shown;

FIG. 5 is a side elevational view taken ninety degrees from the side shown in FIG. 4, the opposite side being the same as the side shown;

FIG. 6 is a cross sectional view taken on line 6--6 of FIG. 2; and,

FIG. 7 is a cross sectional view taken on line 7--7 of FIG. 2.

Referenced Cited
U.S. Patent Documents
D27955 December 1897 Greger
D29313 September 1898 Greger
D210934 May 1968 Johnson
D243766 March 22, 1977 Isaacs
D245104 July 19, 1977 Gross
D267335 December 21, 1982 Axel et al.
D276839 December 18, 1984 McCoy
853750 May 1907 Whorrall
943214 December 1909 Baier
1771176 July 1930 Holub
3109670 November 1963 Engel
3263579 August 1966 Dorris
3501007 March 1970 Davis
3562969 February 1971 Little, Sr.
3717963 February 1973 Savriol
4031009 June 21, 1977 Hicks
4121390 October 24, 1978 Hall et al.
4321713 March 30, 1982 Thompson
4472911 September 25, 1984 Jooris et al.
Foreign Patent Documents
586130 November 1959 CAX
1,135,836 August 1962 DEX
1,793,357 November 1977 GBX
Patent History
Patent number: D280126
Type: Grant
Filed: Jun 20, 1983
Date of Patent: Aug 13, 1985
Assignee: Central States Concrete Products, Inc. (Napa, CA)
Inventors: William R. Provan (Napa, CA), Douglas P. Allard (Sonoma, CA)
Primary Examiner: James R. Largen
Law Firm: Lothrop & West
Application Number: 6/506,097
Classifications
Current U.S. Class: D23/45