Dual-peak annular seal
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The broken lines of even length shown in the drawings illustrate portions that form no part of the claimed design. The broken lines of uneven length shown in the drawings illustrate the areas of enlargement.
Claims
The ornamental design for a dual-peak annular seal, as shown and described.
| D32696 | May 1900 | Merwarth |
| D33782 | December 1900 | Merwarth et al. |
| D35534 | December 1901 | Conlin |
| 3990711 | November 9, 1976 | Hill |
| 4819952 | April 11, 1989 | Edlund |
| 5971399 | October 26, 1999 | Hashimoto |
| 6007070 | December 28, 1999 | Heathcott |
| 6105970 | August 22, 2000 | Siegrist |
| 6129358 | October 10, 2000 | Kiesel |
| 7390580 | June 24, 2008 | Dupont |
| D631948 | February 1, 2011 | Yoshida |
| D646764 | October 11, 2011 | Rusconi |
| D649986 | December 6, 2011 | Fujikata |
| D655401 | March 6, 2012 | Muramatsu |
| D743513 | November 17, 2015 | Yamagishi |
| D754308 | April 19, 2016 | Nakagawa |
| 9388902 | July 12, 2016 | Sueyoshi |
| D767234 | September 20, 2016 | Kirkland |
| D802723 | November 14, 2017 | Miyamoto |
| D818089 | May 15, 2018 | Kim |
| D821552 | June 26, 2018 | Nakagawa |
| D822181 | July 3, 2018 | Nakagawa |
| D836186 | December 18, 2018 | Takahashi |
| D864361 | October 22, 2019 | Kim |
| D871609 | December 31, 2019 | Isozaki |
| D885444 | May 26, 2020 | Tsuji |
| D893685 | August 18, 2020 | Evans |
| D895075 | September 1, 2020 | Kang |
| D896353 | September 15, 2020 | Nakagawa |
| D905761 | December 22, 2020 | Tsuji |
| D933726 | October 19, 2021 | Savandaiah |
| 11162590 | November 2, 2021 | Crudu |
| D942596 | February 1, 2022 | Nakagawa |
| D1031951 | June 18, 2024 | Tsuji |
| 12196324 | January 14, 2025 | Ponnusamy |
| 20190120385 | April 25, 2019 | von Engelbrechten |
| 20240263702 | August 8, 2024 | Buzzard |
| PI0800456 | October 2008 | BR |
| 1168508 | October 1969 | GB |
| 1314941 | April 1973 | GB |
- Written Opinion and International Search Report for Int'l. Patent Appln. No. PCT/US2024/033701, mailed Oct. 7, 2024 (19 pgs).
- Allegheny York, LLC; “Allegheny York Hydraulic Seals and Pneumatic Seals”; 2019 (2 pages).
- The O-Ring Store, LLC; “HS568-226 Polyurethane Head Gland Seals 2¼x0.187x⅛-C/S”; 2023 (3 pages).
- Parker Hannifin Corporation; “Fluid Power Seal Design Guide Catalog EPS 5370”; Jun. 2014 (300 pages).
Type: Grant
Filed: Jul 11, 2023
Date of Patent: Dec 9, 2025
Assignee: CATERPILLAR INC. (Peoria, IL)
Inventor: Ananda Sudhakar Ponnusamy (Naperville, IL)
Primary Examiner: Justin M Jonaitis
Assistant Examiner: Assam Y. Fittahy
Application Number: 29/879,629