Supporting buffer block for highway security railing

Description

FIG. 1 is a perspective view of the supporting buffer block for highway security railing;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D185099 May 1959 Schindler
D248571 July 18, 1978 Herbst
D297370 August 23, 1988 Foster, Jr.
3039743 June 1962 D'Aronco
3617076 November 1971 Attwood
3776520 December 1973 Charles et al.
4063713 December 20, 1977 Anolick et al.
4739971 April 26, 1988 Ruane
5015119 May 14, 1991 Schmanski
5107647 April 28, 1992 Danielewicz
Patent History
Patent number: D348737
Type: Grant
Filed: Sep 28, 1992
Date of Patent: Jul 12, 1994
Inventor: Ching-Jung Yang (Chu Pei City, Hsin Chu Hsien)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Bacon & Thomas
Application Number: 7/952,762
Classifications
Current U.S. Class: Element Or Attachment (D25/133)