Blocking pin for preventing gas leak

- OJC CO., LTD.
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Description

1. Blocking pin for preventing gas leak

1.1: Perspective

1.2: Front

1.3: Back

1.4: Left

1.5: Right

1.6: Top

1.7: Bottom

1.8: Reference

1.9: Reference

The broken lines shown in Figures 1.8 and 1.9 depict environmental structure and form no part of the claimed design.

Claims

The ornamental design for a blocking pin for preventing gas leak, as shown and described.

Referenced Cited
U.S. Patent Documents
D218240 August 1970 Tupker et al.
4171070 October 16, 1979 Colgate
D259949 July 21, 1981 Bane, III
4304216 December 8, 1981 Ratelband
4787416 November 29, 1988 Chuang
D355954 February 28, 1995 Powell
D804888 December 12, 2017 Won
Patent History
Patent number: D830533
Type: Grant
Filed: Jul 5, 2016
Date of Patent: Oct 9, 2018
Assignee: OJC CO., LTD. (Seoul)
Inventors: Se Kyung Won (Incheon), Min Cheol Kim (Bucheon-si), Min Gyu Kang (Ansan-si), Tack Jin Oh (Incheon)
Primary Examiner: Richard E Chilcot
Application Number: 35/502,254
Classifications
Current U.S. Class: Valve Or Control (D23/421)