Sealing ring
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The broken lines illustrating portions of the sealing ring form no part of the claimed design. The dot-dash broken lines defining boundaries of the claimed design form no part of the claimed design.
Claims
The ornamental design for a sealing ring, as shown and described.
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- Valqua Catalogue No. LC10 020 SEN, published by Valqua, Ltd. in Sep. 2019, with partial English translation.
- Merkel PTFE U-rings for high level applications, published by Freudenberg Sealing Technologies as late as 2019.
- PTFE Lip Seal Design Guide Catalog Eps 5340/USA, published and reprinted by Parker Hannifin Corporation in 2018.
Type: Grant
Filed: Apr 9, 2020
Date of Patent: Apr 18, 2023
Assignee: VALQUA, LTD. (Tokyo)
Inventor: Kazuaki Tsuji (Santa Clara, CA)
Primary Examiner: Amy C Wierenga
Application Number: 29/730,914