Butterfly valve
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Description
The broken lines in the drawings are for the purpose of illustrating portions of the butterfly valve which form no part of the claimed design.
Claims
The ornamental design for a butterfly valve, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
3485476 | December 1969 | Hemphill |
3815869 | June 1974 | Smith |
3904173 | September 1975 | Naylor |
D251255 | March 6, 1979 | Hansen |
D251383 | March 20, 1979 | Hansen |
4685611 | August 11, 1987 | Scobie |
4699357 | October 13, 1987 | Sisk |
8651452 | February 18, 2014 | Hemman |
H11230372 | August 1999 | JP |
H11270702 | October 1999 | JP |
2000337547 | December 2000 | JP |
- U.S. Appl. No. 29/651,447, filed Aug. 16, 2018, Nasu.
Patent History
Patent number: D873966
Type: Grant
Filed: Aug 16, 2018
Date of Patent: Jan 28, 2020
Assignee: ASAHI YUKIZAI CORPORATION (Nobeoka-Shi, Miyazaki)
Inventors: Takashi Nasu (Nobeoka), Nobuyuki Matsukuma (Fukuoka-ken)
Primary Examiner: Gino Colan
Application Number: 29/651,452
Type: Grant
Filed: Aug 16, 2018
Date of Patent: Jan 28, 2020
Assignee: ASAHI YUKIZAI CORPORATION (Nobeoka-Shi, Miyazaki)
Inventors: Takashi Nasu (Nobeoka), Nobuyuki Matsukuma (Fukuoka-ken)
Primary Examiner: Gino Colan
Application Number: 29/651,452
Classifications
Current U.S. Class:
Gate Or Butterfly Type (D23/244)