WO2023031787 - NON-PUSHER DRY RUNNING SEAL WITH SEALING ELASTOMER AS A BACKUP IN SLIDING SEAL SYSTEM
National phase entry:
Publication Number
WO/2023/031787
Publication Date
09.03.2023
International Application No.
PCT/IB2022/058114
International Filing Date
30.08.2022
Title **
[English]
NON-PUSHER DRY RUNNING SEAL WITH SEALING ELASTOMER AS A BACKUP IN SLIDING SEAL SYSTEM
[French]
JOINT D'ÉTANCHÉITÉ FONCTIONNANT À SEC SANS POUSSOIR AVEC ÉLASTOMÈRE D'ÉTANCHÉITÉ EN TANT QUE PROTECTION DANS UN SYSTÈME DE JOINT COULISSANT
Applicants **
JOHN CRANE INC.
Inventors
TIRUNAGARI, Prashanthi
WASSER, James R.
Priority Data
63/238,313
30.08.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2050 | |
| EPO | Filing, Examination, Granting | 8711 | |
| Japan | Filing, Examination, Granting | 2294 | |
| South Korea | Filing, Examination, Granting | 2235 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,030
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A mechanical seal assembly (1) adapted for arrangement around a rotating shaft (12) of a pump has first and second seals (2, 3). Both include primary and mating rings (4, 5), biasing mechanisms (500) and annular flexible sealing membranes (100). The two seals can have different seal balances or different biasing forces (or both) to allow the second seal to run dry for extended periods.[French]
Un ensemble joint mécanique (1) conçu pour être disposé autour d'un arbre rotatif (12) d'une pompe comportant des premier et second joints d'étanchéité (2, 3). Les deux comprennent des bagues primaire et d'accouplement (4, 5), des mécanismes de sollicitation (500) et des membranes d'étanchéité flexibles annulaires (100). Les deux joints d'étanchéité peuvent avoir des soldes d'étanchéité différents ou des forces de sollicitation différentes (ou les deux) pour permettre au second joint de fonctionner à sec pendant des périodes prolongées.